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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 10:20:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-28 10:20:25 -0800
commit6556a6743549defc32e5f90ee2cb1ecd833a44c3 (patch)
tree622306583d4a3c13235a8bfc012854c125c597f1 /tools/perf/util
parente0d272429a34ff143bfa04ee8e29dd4eed2964c7 (diff)
parent1dd2980d990068e20045b90c424518cc7f3657ff (diff)
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (172 commits) perf_event, amd: Fix spinlock initialization perf_event: Fix preempt warning in perf_clock() perf tools: Flush maps on COMM events perf_events, x86: Split PMU definitions into separate files perf annotate: Handle samples not at objdump output addr boundaries perf_events, x86: Remove superflous MSR writes perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in() perf_events, x86: AMD event scheduling perf_events: Add new start/stop PMU callbacks perf_events: Report the MMAP pgoff value in bytes perf annotate: Defer allocating sym_priv->hist array perf symbols: Improve debugging information about symtab origins perf top: Use a macro instead of a constant variable perf symbols: Check the right return variable perf/scripts: Tag syscall_name helper as not yet available perf/scripts: Add perf-trace-python Documentation perf/scripts: Remove unnecessary PyTuple resizes perf/scripts: Add syscall tracing scripts perf/scripts: Add Python scripting engine perf/scripts: Remove check-perf-trace from listed scripts ... Fix trivial conflict in tools/perf/util/probe-event.c
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/build-id.c39
-rw-r--r--tools/perf/util/build-id.h8
-rw-r--r--tools/perf/util/data_map.c252
-rw-r--r--tools/perf/util/debug.c1
-rw-r--r--tools/perf/util/debugfs.c17
-rw-r--r--tools/perf/util/debugfs.h2
-rw-r--r--tools/perf/util/event.c220
-rw-r--r--tools/perf/util/event.h79
-rw-r--r--tools/perf/util/header.c284
-rw-r--r--tools/perf/util/header.h9
-rw-r--r--tools/perf/util/include/linux/hash.h5
-rw-r--r--tools/perf/util/include/linux/kernel.h1
-rw-r--r--tools/perf/util/map.c52
-rw-r--r--tools/perf/util/map.h94
-rw-r--r--tools/perf/util/parse-events.c48
-rw-r--r--tools/perf/util/probe-event.c105
-rw-r--r--tools/perf/util/probe-event.h2
-rw-r--r--tools/perf/util/probe-finder.c203
-rw-r--r--tools/perf/util/probe-finder.h33
-rw-r--r--tools/perf/util/scripting-engines/trace-event-perl.c (renamed from tools/perf/util/trace-event-perl.c)115
-rw-r--r--tools/perf/util/scripting-engines/trace-event-python.c573
-rw-r--r--tools/perf/util/session.c431
-rw-r--r--tools/perf/util/session.h55
-rw-r--r--tools/perf/util/string.c65
-rw-r--r--tools/perf/util/symbol.c529
-rw-r--r--tools/perf/util/symbol.h52
-rw-r--r--tools/perf/util/thread.c52
-rw-r--r--tools/perf/util/thread.h24
-rw-r--r--tools/perf/util/trace-event-info.c64
-rw-r--r--tools/perf/util/trace-event-parse.c24
-rw-r--r--tools/perf/util/trace-event-perl.h55
-rw-r--r--tools/perf/util/trace-event-read.c18
-rw-r--r--tools/perf/util/trace-event-scripting.c167
-rw-r--r--tools/perf/util/trace-event.h10
-rw-r--r--tools/perf/util/util.c94
-rw-r--r--tools/perf/util/util.h3
-rw-r--r--tools/perf/util/values.c1
37 files changed, 2892 insertions, 894 deletions
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
new file mode 100644
index 000000000000..04904b35ba81
--- /dev/null
+++ b/tools/perf/util/build-id.c
@@ -0,0 +1,39 @@
+/*
+ * build-id.c
+ *
+ * build-id support
+ *
+ * Copyright (C) 2009, 2010 Red Hat Inc.
+ * Copyright (C) 2009, 2010 Arnaldo Carvalho de Melo <acme@redhat.com>
+ */
+#include "build-id.h"
+#include "event.h"
+#include "symbol.h"
+#include <linux/kernel.h>
+
+static int build_id__mark_dso_hit(event_t *event, struct perf_session *session)
+{
+ struct addr_location al;
+ u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
+ struct thread *thread = perf_session__findnew(session, event->ip.pid);
+
+ if (thread == NULL) {
+ pr_err("problem processing %d event, skipping it.\n",
+ event->header.type);
+ return -1;
+ }
+
+ thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
+ event->ip.ip, &al);
+
+ if (al.map != NULL)
+ al.map->dso->hit = 1;
+
+ return 0;
+}
+
+struct perf_event_ops build_id__mark_dso_hit_ops = {
+ .sample = build_id__mark_dso_hit,
+ .mmap = event__process_mmap,
+ .fork = event__process_task,
+};
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
new file mode 100644
index 000000000000..1d981d63cf9a
--- /dev/null
+++ b/tools/perf/util/build-id.h
@@ -0,0 +1,8 @@
+#ifndef PERF_BUILD_ID_H_
+#define PERF_BUILD_ID_H_ 1
+
+#include "session.h"
+
+extern struct perf_event_ops build_id__mark_dso_hit_ops;
+
+#endif
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
deleted file mode 100644
index b557b836de3d..000000000000
--- a/tools/perf/util/data_map.c
+++ /dev/null
@@ -1,252 +0,0 @@
-#include "symbol.h"
-#include "util.h"
-#include "debug.h"
-#include "thread.h"
-#include "session.h"
-
-static int process_event_stub(event_t *event __used,
- struct perf_session *session __used)
-{
- dump_printf(": unhandled!\n");
- return 0;
-}
-
-static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
-{
- if (!handler->process_sample_event)
- handler->process_sample_event = process_event_stub;
- if (!handler->process_mmap_event)
- handler->process_mmap_event = process_event_stub;
- if (!handler->process_comm_event)
- handler->process_comm_event = process_event_stub;
- if (!handler->process_fork_event)
- handler->process_fork_event = process_event_stub;
- if (!handler->process_exit_event)
- handler->process_exit_event = process_event_stub;
- if (!handler->process_lost_event)
- handler->process_lost_event = process_event_stub;
- if (!handler->process_read_event)
- handler->process_read_event = process_event_stub;
- if (!handler->process_throttle_event)
- handler->process_throttle_event = process_event_stub;
- if (!handler->process_unthrottle_event)
- handler->process_unthrottle_event = process_event_stub;
-}
-
-static const char *event__name[] = {
- [0] = "TOTAL",
- [PERF_RECORD_MMAP] = "MMAP",
- [PERF_RECORD_LOST] = "LOST",
- [PERF_RECORD_COMM] = "COMM",
- [PERF_RECORD_EXIT] = "EXIT",
- [PERF_RECORD_THROTTLE] = "THROTTLE",
- [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
- [PERF_RECORD_FORK] = "FORK",
- [PERF_RECORD_READ] = "READ",
- [PERF_RECORD_SAMPLE] = "SAMPLE",
-};
-
-unsigned long event__total[PERF_RECORD_MAX];
-
-void event__print_totals(void)
-{
- int i;
- for (i = 0; i < PERF_RECORD_MAX; ++i)
- pr_info("%10s events: %10ld\n",
- event__name[i], event__total[i]);
-}
-
-static int process_event(event_t *event, struct perf_session *session,
- struct perf_event_ops *ops,
- unsigned long offset, unsigned long head)
-{
- trace_event(event);
-
- if (event->header.type < PERF_RECORD_MAX) {
- dump_printf("%p [%p]: PERF_RECORD_%s",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event__name[event->header.type]);
- ++event__total[0];
- ++event__total[event->header.type];
- }
-
- switch (event->header.type) {
- case PERF_RECORD_SAMPLE:
- return ops->process_sample_event(event, session);
- case PERF_RECORD_MMAP:
- return ops->process_mmap_event(event, session);
- case PERF_RECORD_COMM:
- return ops->process_comm_event(event, session);
- case PERF_RECORD_FORK:
- return ops->process_fork_event(event, session);
- case PERF_RECORD_EXIT:
- return ops->process_exit_event(event, session);
- case PERF_RECORD_LOST:
- return ops->process_lost_event(event, session);
- case PERF_RECORD_READ:
- return ops->process_read_event(event, session);
- case PERF_RECORD_THROTTLE:
- return ops->process_throttle_event(event, session);
- case PERF_RECORD_UNTHROTTLE:
- return ops->process_unthrottle_event(event, session);
- default:
- ops->total_unknown++;
- return -1;
- }
-}
-
-int perf_header__read_build_ids(int input, u64 offset, u64 size)
-{
- struct build_id_event bev;
- char filename[PATH_MAX];
- u64 limit = offset + size;
- int err = -1;
-
- while (offset < limit) {
- struct dso *dso;
- ssize_t len;
-
- if (read(input, &bev, sizeof(bev)) != sizeof(bev))
- goto out;
-
- len = bev.header.size - sizeof(bev);
- if (read(input, filename, len) != len)
- goto out;
-
- dso = dsos__findnew(filename);
- if (dso != NULL)
- dso__set_build_id(dso, &bev.build_id);
-
- offset += bev.header.size;
- }
- err = 0;
-out:
- return err;
-}
-
-static struct thread *perf_session__register_idle_thread(struct perf_session *self)
-{
- struct thread *thread = perf_session__findnew(self, 0);
-
- if (!thread || thread__set_comm(thread, "swapper")) {
- pr_err("problem inserting idle task.\n");
- thread = NULL;
- }
-
- return thread;
-}
-
-int perf_session__process_events(struct perf_session *self,
- struct perf_event_ops *ops)
-{
- int err;
- unsigned long head, shift;
- unsigned long offset = 0;
- size_t page_size;
- event_t *event;
- uint32_t size;
- char *buf;
-
- if (perf_session__register_idle_thread(self) == NULL)
- return -ENOMEM;
-
- perf_event_ops__fill_defaults(ops);
-
- page_size = getpagesize();
-
- head = self->header.data_offset;
- self->sample_type = perf_header__sample_type(&self->header);
-
- err = -EINVAL;
- if (ops->sample_type_check && ops->sample_type_check(self) < 0)
- goto out_err;
-
- if (!ops->full_paths) {
- char bf[PATH_MAX];
-
- if (getcwd(bf, sizeof(bf)) == NULL) {
- err = -errno;
-out_getcwd_err:
- pr_err("failed to get the current directory\n");
- goto out_err;
- }
- self->cwd = strdup(bf);
- if (self->cwd == NULL) {
- err = -ENOMEM;
- goto out_getcwd_err;
- }
- self->cwdlen = strlen(self->cwd);
- }
-
- shift = page_size * (head / page_size);
- offset += shift;
- head -= shift;
-
-remap:
- buf = mmap(NULL, page_size * self->mmap_window, PROT_READ,
- MAP_SHARED, self->fd, offset);
- if (buf == MAP_FAILED) {
- pr_err("failed to mmap file\n");
- err = -errno;
- goto out_err;
- }
-
-more:
- event = (event_t *)(buf + head);
-
- size = event->header.size;
- if (!size)
- size = 8;
-
- if (head + event->header.size >= page_size * self->mmap_window) {
- int munmap_ret;
-
- shift = page_size * (head / page_size);
-
- munmap_ret = munmap(buf, page_size * self->mmap_window);
- assert(munmap_ret == 0);
-
- offset += shift;
- head -= shift;
- goto remap;
- }
-
- size = event->header.size;
-
- dump_printf("\n%p [%p]: event: %d\n",
- (void *)(offset + head),
- (void *)(long)event->header.size,
- event->header.type);
-
- if (!size || process_event(event, self, ops, offset, head) < 0) {
-
- dump_printf("%p [%p]: skipping unknown header type: %d\n",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event->header.type);
-
- /*
- * assume we lost track of the stream, check alignment, and
- * increment a single u64 in the hope to catch on again 'soon'.
- */
-
- if (unlikely(head & 7))
- head &= ~7ULL;
-
- size = 8;
- }
-
- head += size;
-
- if (offset + head >= self->header.data_offset + self->header.data_size)
- goto done;
-
- if (offset + head < self->size)
- goto more;
-
-done:
- err = 0;
-out_err:
- return err;
-}
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 28d520d5a1fb..0905600c3851 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -9,6 +9,7 @@
#include "color.h"
#include "event.h"
#include "debug.h"
+#include "util.h"
int verbose = 0;
int dump_trace = 0;
diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c
index 06b73ee02c49..a88fefc0cc0a 100644
--- a/tools/perf/util/debugfs.c
+++ b/tools/perf/util/debugfs.c
@@ -106,16 +106,14 @@ int debugfs_valid_entry(const char *path)
return 0;
}
-/* mount the debugfs somewhere */
+/* mount the debugfs somewhere if it's not mounted */
-int debugfs_mount(const char *mountpoint)
+char *debugfs_mount(const char *mountpoint)
{
- char mountcmd[128];
-
/* see if it's already mounted */
if (debugfs_find_mountpoint()) {
debugfs_premounted = 1;
- return 0;
+ return debugfs_mountpoint;
}
/* if not mounted and no argument */
@@ -127,13 +125,14 @@ int debugfs_mount(const char *mountpoint)
mountpoint = "/sys/kernel/debug";
}
+ if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)
+ return NULL;
+
/* save the mountpoint */
strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
+ debugfs_found = 1;
- /* mount it */
- snprintf(mountcmd, sizeof(mountcmd),
- "/bin/mount -t debugfs debugfs %s", mountpoint);
- return system(mountcmd);
+ return debugfs_mountpoint;
}
/* umount the debugfs */
diff --git a/tools/perf/util/debugfs.h b/tools/perf/util/debugfs.h
index 3cd14f9ae784..83a02879745f 100644
--- a/tools/perf/util/debugfs.h
+++ b/tools/perf/util/debugfs.h
@@ -15,7 +15,7 @@
extern const char *debugfs_find_mountpoint(void);
extern int debugfs_valid_mountpoint(const char *debugfs);
extern int debugfs_valid_entry(const char *path);
-extern int debugfs_mount(const char *mountpoint);
+extern char *debugfs_mount(const char *mountpoint);
extern int debugfs_umount(void);
extern int debugfs_write(const char *entry, const char *value);
extern int debugfs_read(const char *entry, char *buffer, size_t size);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 8a9e6baa3099..705ec63548b4 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -8,8 +8,7 @@
#include "thread.h"
static pid_t event__synthesize_comm(pid_t pid, int full,
- int (*process)(event_t *event,
- struct perf_session *session),
+ event__handler_t process,
struct perf_session *session)
{
event_t ev;
@@ -91,8 +90,7 @@ out_failure:
}
static int event__synthesize_mmap_events(pid_t pid, pid_t tgid,
- int (*process)(event_t *event,
- struct perf_session *session),
+ event__handler_t process,
struct perf_session *session)
{
char filename[PATH_MAX];
@@ -112,7 +110,10 @@ static int event__synthesize_mmap_events(pid_t pid, pid_t tgid,
while (1) {
char bf[BUFSIZ], *pbf = bf;
event_t ev = {
- .header = { .type = PERF_RECORD_MMAP },
+ .header = {
+ .type = PERF_RECORD_MMAP,
+ .misc = 0, /* Just like the kernel, see kernel/perf_event.c __perf_event_mmap */
+ },
};
int n;
size_t size;
@@ -156,9 +157,38 @@ static int event__synthesize_mmap_events(pid_t pid, pid_t tgid,
return 0;
}
-int event__synthesize_thread(pid_t pid,
- int (*process)(event_t *event,
- struct perf_session *session),
+int event__synthesize_modules(event__handler_t process,
+ struct perf_session *session)
+{
+ struct rb_node *nd;
+
+ for (nd = rb_first(&session->kmaps.maps[MAP__FUNCTION]);
+ nd; nd = rb_next(nd)) {
+ event_t ev;
+ size_t size;
+ struct map *pos = rb_entry(nd, struct map, rb_node);
+
+ if (pos->dso->kernel)
+ continue;
+
+ size = ALIGN(pos->dso->long_name_len + 1, sizeof(u64));
+ memset(&ev, 0, sizeof(ev));
+ ev.mmap.header.misc = 1; /* kernel uses 0 for user space maps, see kernel/perf_event.c __perf_event_mmap */
+ ev.mmap.header.type = PERF_RECORD_MMAP;
+ ev.mmap.header.size = (sizeof(ev.mmap) -
+ (sizeof(ev.mmap.filename) - size));
+ ev.mmap.start = pos->start;
+ ev.mmap.len = pos->end - pos->start;
+
+ memcpy(ev.mmap.filename, pos->dso->long_name,
+ pos->dso->long_name_len + 1);
+ process(&ev, session);
+ }
+
+ return 0;
+}
+
+int event__synthesize_thread(pid_t pid, event__handler_t process,
struct perf_session *session)
{
pid_t tgid = event__synthesize_comm(pid, 1, process, session);
@@ -167,8 +197,7 @@ int event__synthesize_thread(pid_t pid,
return event__synthesize_mmap_events(pid, tgid, process, session);
}
-void event__synthesize_threads(int (*process)(event_t *event,
- struct perf_session *session),
+void event__synthesize_threads(event__handler_t process,
struct perf_session *session)
{
DIR *proc;
@@ -189,6 +218,59 @@ void event__synthesize_threads(int (*process)(event_t *event,
closedir(proc);
}
+struct process_symbol_args {
+ const char *name;
+ u64 start;
+};
+
+static int find_symbol_cb(void *arg, const char *name, char type, u64 start)
+{
+ struct process_symbol_args *args = arg;
+
+ /*
+ * Must be a function or at least an alias, as in PARISC64, where "_text" is
+ * an 'A' to the same address as "_stext".
+ */
+ if (!(symbol_type__is_a(type, MAP__FUNCTION) ||
+ type == 'A') || strcmp(name, args->name))
+ return 0;
+
+ args->start = start;
+ return 1;
+}
+
+int event__synthesize_kernel_mmap(event__handler_t process,
+ struct perf_session *session,
+ const char *symbol_name)
+{
+ size_t size;
+ event_t ev = {
+ .header = {
+ .type = PERF_RECORD_MMAP,
+ .misc = 1, /* kernel uses 0 for user space maps, see kernel/perf_event.c __perf_event_mmap */
+ },
+ };
+ /*
+ * We should get this from /sys/kernel/sections/.text, but till that is
+ * available use this, and after it is use this as a fallback for older
+ * kernels.
+ */
+ struct process_symbol_args args = { .name = symbol_name, };
+
+ if (kallsyms__parse("/proc/kallsyms", &args, find_symbol_cb) <= 0)
+ return -ENOENT;
+
+ size = snprintf(ev.mmap.filename, sizeof(ev.mmap.filename),
+ "[kernel.kallsyms.%s]", symbol_name) + 1;
+ size = ALIGN(size, sizeof(u64));
+ ev.mmap.header.size = (sizeof(ev.mmap) - (sizeof(ev.mmap.filename) - size));
+ ev.mmap.pgoff = args.start;
+ ev.mmap.start = session->vmlinux_maps[MAP__FUNCTION]->start;
+ ev.mmap.len = session->vmlinux_maps[MAP__FUNCTION]->end - ev.mmap.start ;
+
+ return process(&ev, session);
+}
+
static void thread__comm_adjust(struct thread *self)
{
char *comm = self->comm;
@@ -240,22 +322,88 @@ int event__process_lost(event_t *self, struct perf_session *session)
int event__process_mmap(event_t *self, struct perf_session *session)
{
- struct thread *thread = perf_session__findnew(session, self->mmap.pid);
- struct map *map = map__new(&self->mmap, MAP__FUNCTION,
- session->cwd, session->cwdlen);
+ struct thread *thread;
+ struct map *map;
+
+ dump_printf(" %d/%d: [%#Lx(%#Lx) @ %#Lx]: %s\n",
+ self->mmap.pid, self->mmap.tid, self->mmap.start,
+ self->mmap.len, self->mmap.pgoff, self->mmap.filename);
+
+ if (self->mmap.pid == 0) {
+ static const char kmmap_prefix[] = "[kernel.kallsyms.";
+
+ if (self->mmap.filename[0] == '/') {
+ char short_module_name[1024];
+ char *name = strrchr(self->mmap.filename, '/'), *dot;
+
+ if (name == NULL)
+ goto out_problem;
+
+ ++name; /* skip / */
+ dot = strrchr(name, '.');
+ if (dot == NULL)
+ goto out_problem;
+
+ snprintf(short_module_name, sizeof(short_module_name),
+ "[%.*s]", (int)(dot - name), name);
+ strxfrchar(short_module_name, '-', '_');
+
+ map = perf_session__new_module_map(session,
+ self->mmap.start,
+ self->mmap.filename);
+ if (map == NULL)
+ goto out_problem;
+
+ name = strdup(short_module_name);
+ if (name == NULL)
+ goto out_problem;
+
+ map->dso->short_name = name;
+ map->end = map->start + self->mmap.len;
+ } else if (memcmp(self->mmap.filename, kmmap_prefix,
+ sizeof(kmmap_prefix) - 1) == 0) {
+ const char *symbol_name = (self->mmap.filename +
+ sizeof(kmmap_prefix) - 1);
+ /*
+ * Should be there already, from the build-id table in
+ * the header.
+ */
+ struct dso *kernel = __dsos__findnew(&dsos__kernel,
+ "[kernel.kallsyms]");
+ if (kernel == NULL)
+ goto out_problem;
+
+ kernel->kernel = 1;
+ if (__perf_session__create_kernel_maps(session, kernel) < 0)
+ goto out_problem;
+
+ session->vmlinux_maps[MAP__FUNCTION]->start = self->mmap.start;
+ session->vmlinux_maps[MAP__FUNCTION]->end = self->mmap.start + self->mmap.len;
+ /*
+ * Be a bit paranoid here, some perf.data file came with
+ * a zero sized synthesized MMAP event for the kernel.
+ */
+ if (session->vmlinux_maps[MAP__FUNCTION]->end == 0)
+ session->vmlinux_maps[MAP__FUNCTION]->end = ~0UL;
+
+ perf_session__set_kallsyms_ref_reloc_sym(session, symbol_name,
+ self->mmap.pgoff);
+ }
+ return 0;
+ }
- dump_printf(" %d/%d: [%p(%p) @ %p]: %s\n",
- self->mmap.pid, self->mmap.tid,
- (void *)(long)self->mmap.start,
- (void *)(long)self->mmap.len,
- (void *)(long)self->mmap.pgoff,
- self->mmap.filename);
+ thread = perf_session__findnew(session, self->mmap.pid);
+ map = map__new(&self->mmap, MAP__FUNCTION,
+ session->cwd, session->cwdlen);
if (thread == NULL || map == NULL)
- dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
- else
- thread__insert_map(thread, map);
+ goto out_problem;
+ thread__insert_map(thread, map);
+ return 0;
+
+out_problem:
+ dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
return 0;
}
@@ -284,11 +432,10 @@ int event__process_task(event_t *self, struct perf_session *session)
return 0;
}
-void thread__find_addr_location(struct thread *self,
- struct perf_session *session, u8 cpumode,
- enum map_type type, u64 addr,
- struct addr_location *al,
- symbol_filter_t filter)
+void thread__find_addr_map(struct thread *self,
+ struct perf_session *session, u8 cpumode,
+ enum map_type type, u64 addr,
+ struct addr_location *al)
{
struct map_groups *mg = &self->mg;
@@ -303,7 +450,6 @@ void thread__find_addr_location(struct thread *self,
else {
al->level = 'H';
al->map = NULL;
- al->sym = NULL;
return;
}
try_again:
@@ -322,11 +468,21 @@ try_again:
mg = &session->kmaps;
goto try_again;
}
- al->sym = NULL;
- } else {
+ } else
al->addr = al->map->map_ip(al->map, al->addr);
- al->sym = map__find_symbol(al->map, session, al->addr, filter);
- }
+}
+
+void thread__find_addr_location(struct thread *self,
+ struct perf_session *session, u8 cpumode,
+ enum map_type type, u64 addr,
+ struct addr_location *al,
+ symbol_filter_t filter)
+{
+ thread__find_addr_map(self, session, cpumode, type, addr, al);
+ if (al->map != NULL)
+ al->sym = map__find_symbol(al->map, al->addr, filter);
+ else
+ al->sym = NULL;
}
static void dso__calc_col_width(struct dso *self)
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 690a96d0467c..50a7132887f5 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -1,10 +1,10 @@
#ifndef __PERF_RECORD_H
#define __PERF_RECORD_H
+#include <limits.h>
+
#include "../perf.h"
-#include "util.h"
-#include <linux/list.h>
-#include <linux/rbtree.h>
+#include "map.h"
/*
* PERF_SAMPLE_IP | PERF_SAMPLE_TID | *
@@ -101,74 +101,19 @@ struct events_stats {
void event__print_totals(void);
-enum map_type {
- MAP__FUNCTION = 0,
- MAP__VARIABLE,
-};
-
-#define MAP__NR_TYPES (MAP__VARIABLE + 1)
-
-struct map {
- union {
- struct rb_node rb_node;
- struct list_head node;
- };
- u64 start;
- u64 end;
- enum map_type type;
- u64 pgoff;
- u64 (*map_ip)(struct map *, u64);
- u64 (*unmap_ip)(struct map *, u64);
- struct dso *dso;
-};
-
-static inline u64 map__map_ip(struct map *map, u64 ip)
-{
- return ip - map->start + map->pgoff;
-}
-
-static inline u64 map__unmap_ip(struct map *map, u64 ip)
-{
- return ip + map->start - map->pgoff;
-}
-
-static inline u64 identity__map_ip(struct map *map __used, u64 ip)
-{
- return ip;
-}
-
-struct symbol;
-
-typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
-
-void map__init(struct map *self, enum map_type type,
- u64 start, u64 end, u64 pgoff, struct dso *dso);
-struct map *map__new(struct mmap_event *event, enum map_type,
- char *cwd, int cwdlen);
-void map__delete(struct map *self);
-struct map *map__clone(struct map *self);
-int map__overlap(struct map *l, struct map *r);
-size_t map__fprintf(struct map *self, FILE *fp);
-
struct perf_session;
-int map__load(struct map *self, struct perf_session *session,
- symbol_filter_t filter);
-struct symbol *map__find_symbol(struct map *self, struct perf_session *session,
- u64 addr, symbol_filter_t filter);
-struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
- struct perf_session *session,
- symbol_filter_t filter);
-void map__fixup_start(struct map *self);
-void map__fixup_end(struct map *self);
-
-int event__synthesize_thread(pid_t pid,
- int (*process)(event_t *event,
- struct perf_session *session),
+typedef int (*event__handler_t)(event_t *event, struct perf_session *session);
+
+int event__synthesize_thread(pid_t pid, event__handler_t process,
struct perf_session *session);
-void event__synthesize_threads(int (*process)(event_t *event,
- struct perf_session *session),
+void event__synthesize_threads(event__handler_t process,
struct perf_session *session);
+int event__synthesize_kernel_mmap(event__handler_t process,
+ struct perf_session *session,
+ const char *symbol_name);
+int event__synthesize_modules(event__handler_t process,
+ struct perf_session *session);
int event__process_comm(event_t *self, struct perf_session *session);
int event__process_lost(event_t *self, struct perf_session *session);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 8a0bca55106f..6c9aa16ee51f 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1,8 +1,12 @@
+#define _FILE_OFFSET_BITS 64
+
#include <sys/types.h>
+#include <byteswap.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <linux/list.h>
+#include <linux/kernel.h>
#include "util.h"
#include "header.h"
@@ -105,24 +109,28 @@ struct perf_trace_event_type {
static int event_count;
static struct perf_trace_event_type *events;
-void perf_header__push_event(u64 id, const char *name)
+int perf_header__push_event(u64 id, const char *name)
{
if (strlen(name) > MAX_EVENT_NAME)
pr_warning("Event %s will be truncated\n", name);
if (!events) {
events = malloc(sizeof(struct perf_trace_event_type));
- if (!events)
- die("nomem");
+ if (events == NULL)
+ return -ENOMEM;
} else {
- events = realloc(events, (event_count + 1) * sizeof(struct perf_trace_event_type));
- if (!events)
- die("nomem");
+ struct perf_trace_event_type *nevents;
+
+ nevents = realloc(events, (event_count + 1) * sizeof(*events));
+ if (nevents == NULL)
+ return -ENOMEM;
+ events = nevents;
}
memset(&events[event_count], 0, sizeof(struct perf_trace_event_type));
events[event_count].event_id = id;
strncpy(events[event_count].name, name, MAX_EVENT_NAME - 1);
event_count++;
+ return 0;
}
char *perf_header__find_event(u64 id)
@@ -169,31 +177,48 @@ static int do_write(int fd, const void *buf, size_t size)
return 0;
}
-static int __dsos__write_buildid_table(struct list_head *head, int fd)
+#define NAME_ALIGN 64
+
+static int write_padded(int fd, const void *bf, size_t count,
+ size_t count_aligned)
{
-#define NAME_ALIGN 64
- struct dso *pos;
static const char zero_buf[NAME_ALIGN];
+ int err = do_write(fd, bf, count);
+
+ if (!err)
+ err = do_write(fd, zero_buf, count_aligned - count);
+
+ return err;
+}
- list_for_each_entry(pos, head, node) {
+#define dsos__for_each_with_build_id(pos, head) \
+ list_for_each_entry(pos, head, node) \
+ if (!pos->has_build_id) \
+ continue; \
+ else
+
+static int __dsos__write_buildid_table(struct list_head *head, u16 misc, int fd)
+{
+ struct dso *pos;
+
+ dsos__for_each_with_build_id(pos, head) {
int err;
struct build_id_event b;
size_t len;
- if (!pos->has_build_id)
+ if (!pos->hit)
continue;
len = pos->long_name_len + 1;
len = ALIGN(len, NAME_ALIGN);
memset(&b, 0, sizeof(b));
memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id));
+ b.header.misc = misc;
b.header.size = sizeof(b) + len;
err = do_write(fd, &b, sizeof(b));
if (err < 0)
return err;
- err = do_write(fd, pos->long_name, pos->long_name_len + 1);
- if (err < 0)
- return err;
- err = do_write(fd, zero_buf, len - pos->long_name_len - 1);
+ err = write_padded(fd, pos->long_name,
+ pos->long_name_len + 1, len);
if (err < 0)
return err;
}
@@ -203,12 +228,143 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd)
static int dsos__write_buildid_table(int fd)
{
- int err = __dsos__write_buildid_table(&dsos__kernel, fd);
+ int err = __dsos__write_buildid_table(&dsos__kernel,
+ PERF_RECORD_MISC_KERNEL, fd);
if (err == 0)
- err = __dsos__write_buildid_table(&dsos__user, fd);
+ err = __dsos__write_buildid_table(&dsos__user,
+ PERF_RECORD_MISC_USER, fd);
return err;
}
+int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
+ const char *name, bool is_kallsyms)
+{
+ const size_t size = PATH_MAX;
+ char *filename = malloc(size),
+ *linkname = malloc(size), *targetname;
+ int len, err = -1;
+
+ if (filename == NULL || linkname == NULL)
+ goto out_free;
+
+ len = snprintf(filename, size, "%s%s%s",
+ debugdir, is_kallsyms ? "/" : "", name);
+ if (mkdir_p(filename, 0755))
+ goto out_free;
+
+ snprintf(filename + len, sizeof(filename) - len, "/%s", sbuild_id);
+
+ if (access(filename, F_OK)) {
+ if (is_kallsyms) {
+ if (copyfile("/proc/kallsyms", filename))
+ goto out_free;
+ } else if (link(name, filename) && copyfile(name, filename))
+ goto out_free;
+ }
+
+ len = snprintf(linkname, size, "%s/.build-id/%.2s",
+ debugdir, sbuild_id);
+
+ if (access(linkname, X_OK) && mkdir_p(linkname, 0755))
+ goto out_free;
+
+ snprintf(linkname + len, size - len, "/%s", sbuild_id + 2);
+ targetname = filename + strlen(debugdir) - 5;
+ memcpy(targetname, "../..", 5);
+
+ if (symlink(targetname, linkname) == 0)
+ err = 0;
+out_free:
+ free(filename);
+ free(linkname);
+ return err;
+}
+
+static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
+ const char *name, const char *debugdir,
+ bool is_kallsyms)
+{
+ char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+
+ build_id__sprintf(build_id, build_id_size, sbuild_id);
+
+ return build_id_cache__add_s(sbuild_id, debugdir, name, is_kallsyms);
+}
+
+int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir)
+{
+ const size_t size = PATH_MAX;
+ char *filename = malloc(size),
+ *linkname = malloc(size);
+ int err = -1;
+
+ if (filename == NULL || linkname == NULL)
+ goto out_free;
+
+ snprintf(linkname, size, "%s/.build-id/%.2s/%s",
+ debugdir, sbuild_id, sbuild_id + 2);
+
+ if (access(linkname, F_OK))
+ goto out_free;
+
+ if (readlink(linkname, filename, size) < 0)
+ goto out_free;
+
+ if (unlink(linkname))
+ goto out_free;
+
+ /*
+ * Since the link is relative, we must make it absolute:
+ */
+ snprintf(linkname, size, "%s/.build-id/%.2s/%s",
+ debugdir, sbuild_id, filename);
+
+ if (unlink(linkname))
+ goto out_free;
+
+ err = 0;
+out_free:
+ free(filename);
+ free(linkname);
+ return err;
+}
+
+static int dso__cache_build_id(struct dso *self, const char *debugdir)
+{
+ bool is_kallsyms = self->kernel && self->long_name[0] != '/';
+
+ return build_id_cache__add_b(self->build_id, sizeof(self->build_id),
+ self->long_name, debugdir, is_kallsyms);
+}
+
+static int __dsos__cache_build_ids(struct list_head *head, const char *debugdir)
+{
+ struct dso *pos;
+ int err = 0;
+
+ dsos__for_each_with_build_id(pos, head)
+ if (dso__cache_build_id(pos, debugdir))
+ err = -1;
+
+ return err;
+}
+
+static int dsos__cache_build_ids(void)
+{
+ int err_kernel, err_user;
+ char debugdir[PATH_MAX];
+
+ snprintf(debugdir, sizeof(debugdir), "%s/%s", getenv("HOME"),
+ DEBUG_CACHE_DIR);
+
+ if (mkdir(debugdir, 0755) != 0 && errno != EEXIST)
+ return -1;
+
+ err_kernel = __dsos__cache_build_ids(&dsos__kernel, debugdir);
+ err_user = __dsos__cache_build_ids(&dsos__user, debugdir);
+ return err_kernel || err_user ? -1 : 0;
+}
+
static int perf_header__adds_write(struct perf_header *self, int fd)
{
int nr_sections;
@@ -217,7 +373,7 @@ static int perf_header__adds_write(struct perf_header *self, int fd)
u64 sec_start;
int idx = 0, err;
- if (dsos__read_build_ids())
+ if (dsos__read_build_ids(true))
perf_header__set_feat(self, HEADER_BUILD_ID);
nr_sections = bitmap_weight(self->adds_features, HEADER_FEAT_BITS);
@@ -257,7 +413,9 @@ static int perf_header__adds_write(struct perf_header *self, int fd)
pr_debug("failed to write buildid table\n");
goto out_free;
}
- buildid_sec->size = lseek(fd, 0, SEEK_CUR) - buildid_sec->offset;
+ buildid_sec->size = lseek(fd, 0, SEEK_CUR) -
+ buildid_sec->offset;
+ dsos__cache_build_ids();
}
lseek(fd, sec_start, SEEK_SET);
@@ -360,30 +518,43 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit)
return 0;
}
-static void do_read(int fd, void *buf, size_t size)
+static int do_read(int fd, void *buf, size_t size)
{
while (size) {
int ret = read(fd, buf, size);
- if (ret < 0)
- die("failed to read");
- if (ret == 0)
- die("failed to read: missing data");
+ if (ret <= 0)
+ return -1;
size -= ret;
buf += ret;
}
+
+ return 0;
+}
+
+static int perf_header__getbuffer64(struct perf_header *self,
+ int fd, void *buf, size_t size)
+{
+ if (do_read(fd, buf, size))
+ return -1;
+
+ if (self->needs_swap)
+ mem_bswap_64(buf, size);
+
+ return 0;
}
int perf_header__process_sections(struct perf_header *self, int fd,
int (*process)(struct perf_file_section *self,
+ struct perf_header *ph,
int feat, int fd))
{
struct perf_file_section *feat_sec;
int nr_sections;
int sec_size;
int idx = 0;
- int err = 0, feat = 1;
+ int err = -1, feat = 1;
nr_sections = bitmap_weight(self->adds_features, HEADER_FEAT_BITS);
if (!nr_sections)
@@ -397,33 +568,45 @@ int perf_header__process_sections(struct perf_header *self, int fd,
lseek(fd, self->data_offset + self->data_size, SEEK_SET);
- do_read(fd, feat_sec, sec_size);
+ if (perf_header__getbuffer64(self, fd, feat_sec, sec_size))
+ goto out_free;
+ err = 0;
while (idx < nr_sections && feat < HEADER_LAST_FEATURE) {
if (perf_header__has_feat(self, feat)) {
struct perf_file_section *sec = &feat_sec[idx++];
- err = process(sec, feat, fd);
+ err = process(sec, self, feat, fd);
if (err < 0)
break;
}
++feat;
}
-
+out_free:
free(feat_sec);
return err;
-};
+}
int perf_file_header__read(struct perf_file_header *self,
struct perf_header *ph, int fd)
{
lseek(fd, 0, SEEK_SET);
- do_read(fd, self, sizeof(*self));
- if (self->magic != PERF_MAGIC ||
- self->attr_size != sizeof(struct perf_file_attr))
+ if (do_read(fd, self, sizeof(*self)) ||
+ memcmp(&self->magic, __perf_magic, sizeof(self->magic)))
return -1;
+ if (self->attr_size != sizeof(struct perf_file_attr)) {
+ u64 attr_size = bswap_64(self->attr_size);
+
+ if (attr_size != sizeof(struct perf_file_attr))
+ return -1;
+
+ mem_bswap_64(self, offsetof(struct perf_file_header,
+ adds_features));
+ ph->needs_swap = true;
+ }
+
if (self->size != sizeof(*self)) {
/* Support the previous format */
if (self->size == offsetof(typeof(*self), adds_features))
@@ -433,19 +616,31 @@ int perf_file_header__read(struct perf_file_header *self,
}
memcpy(&ph->adds_features, &self->adds_features,
- sizeof(self->adds_features));
+ sizeof(ph->adds_features));
+ /*
+ * FIXME: hack that assumes that if we need swap the perf.data file
+ * may be coming from an arch with a different word-size, ergo different
+ * DEFINE_BITMAP format, investigate more later, but for now its mostly
+ * safe to assume that we have a build-id section. Trace files probably
+ * have several other issues in this realm anyway...
+ */
+ if (ph->needs_swap) {
+ memset(&ph->adds_features, 0, sizeof(ph->adds_features));
+ perf_header__set_feat(ph, HEADER_BUILD_ID);
+ }
ph->event_offset = self->event_types.offset;
- ph->event_size = self->event_types.size;
- ph->data_offset = self->data.offset;
+ ph->event_size = self->event_types.size;
+ ph->data_offset = self->data.offset;
ph->data_size = self->data.size;
return 0;
}
static int perf_file_section__process(struct perf_file_section *self,
+ struct perf_header *ph,
int feat, int fd)
{
- if (lseek(fd, self->offset, SEEK_SET) < 0) {
+ if (lseek(fd, self->offset, SEEK_SET) == (off_t)-1) {
pr_debug("Failed to lseek to %Ld offset for feature %d, "
"continuing...\n", self->offset, feat);
return 0;
@@ -457,7 +652,7 @@ static int perf_file_section__process(struct perf_file_section *self,
break;
case HEADER_BUILD_ID:
- if (perf_header__read_build_ids(fd, self->offset, self->size))
+ if (perf_header__read_build_ids(ph, fd, self->offset, self->size))
pr_debug("Failed to read buildids, continuing...\n");
break;
default:
@@ -469,7 +664,7 @@ static int perf_file_section__process(struct perf_file_section *self,
int perf_header__read(struct perf_header *self, int fd)
{
- struct perf_file_header f_header;
+ struct perf_file_header f_header;
struct perf_file_attr f_attr;
u64 f_id;
int nr_attrs, nr_ids, i, j;
@@ -486,7 +681,9 @@ int perf_header__read(struct perf_header *self, int fd)
struct perf_header_attr *attr;
off_t tmp;
- do_read(fd, &f_attr, sizeof(f_attr));
+ if (perf_header__getbuffer64(self, fd, &f_attr, sizeof(f_attr)))
+ goto out_errno;
+
tmp = lseek(fd, 0, SEEK_CUR);
attr = perf_header_attr__new(&f_attr.attr);
@@ -497,7 +694,8 @@ int perf_header__read(struct perf_header *self, int fd)
lseek(fd, f_attr.ids.offset, SEEK_SET);
for (j = 0; j < nr_ids; j++) {
- do_read(fd, &f_id, sizeof(f_id));
+ if (perf_header__getbuffer64(self, fd, &f_id, sizeof(f_id)))
+ goto out_errno;
if (perf_header_attr__add_id(attr, f_id) < 0) {
perf_header_attr__delete(attr);
@@ -517,7 +715,9 @@ int perf_header__read(struct perf_header *self, int fd)
events = malloc(f_header.event_types.size);
if (events == NULL)
return -ENOMEM;
- do_read(fd, events, f_header.event_types.size);
+ if (perf_header__getbuffer64(self, fd, events,
+ f_header.event_types.size))
+ goto out_errno;
event_count = f_header.event_types.size / sizeof(struct perf_trace_event_type);
}
@@ -527,6 +727,8 @@ int perf_header__read(struct perf_header *self, int fd)
self->frozen = 1;
return 0;
+out_errno:
+ return -errno;
}
u64 perf_header__sample_type(struct perf_header *header)
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d118d05d3abe..82a6af72d4cc 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -5,6 +5,7 @@
#include <sys/types.h>
#include <stdbool.h>
#include "types.h"
+#include "event.h"
#include <linux/bitmap.h>
@@ -52,6 +53,7 @@ struct perf_header {
u64 data_size;
u64 event_offset;
u64 event_size;
+ bool needs_swap;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};
@@ -64,7 +66,7 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit);
int perf_header__add_attr(struct perf_header *self,
struct perf_header_attr *attr);
-void perf_header__push_event(u64 id, const char *name);
+int perf_header__push_event(u64 id, const char *name);
char *perf_header__find_event(u64 id);
struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
@@ -80,6 +82,11 @@ bool perf_header__has_feat(const struct perf_header *self, int feat);
int perf_header__process_sections(struct perf_header *self, int fd,
int (*process)(struct perf_file_section *self,
+ struct perf_header *ph,
int feat, int fd));
+int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
+ const char *name, bool is_kallsyms);
+int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
+
#endif /* __PERF_HEADER_H */
diff --git a/tools/perf/util/include/linux/hash.h b/tools/perf/util/include/linux/hash.h
new file mode 100644
index 000000000000..201f57397997
--- /dev/null
+++ b/tools/perf/util/include/linux/hash.h
@@ -0,0 +1,5 @@
+#include "../../../../include/linux/hash.h"
+
+#ifndef PERF_HASH_H
+#define PERF_HASH_H
+#endif
diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h
index 21c0274c02fa..f2611655ab51 100644
--- a/tools/perf/util/include/linux/kernel.h
+++ b/tools/perf/util/include/linux/kernel.h
@@ -101,5 +101,6 @@ simple_strtoul(const char *nptr, char **endptr, int base)
eprintf(n, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
#endif
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index c4d55a0da2ea..e509cd59c67d 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -5,6 +5,11 @@
#include <stdio.h>
#include "debug.h"
+const char *map_type__name[MAP__NR_TYPES] = {
+ [MAP__FUNCTION] = "Functions",
+ [MAP__VARIABLE] = "Variables",
+};
+
static inline int is_anon_memory(const char *filename)
{
return strcmp(filename, "//anon") == 0;
@@ -68,8 +73,13 @@ struct map *map__new(struct mmap_event *event, enum map_type type,
map__init(self, type, event->start, event->start + event->len,
event->pgoff, dso);
- if (self->dso == vdso || anon)
+ if (anon) {
+set_identity:
self->map_ip = self->unmap_ip = identity__map_ip;
+ } else if (strcmp(filename, "[vdso]") == 0) {
+ dso__set_loaded(dso, self->type);
+ goto set_identity;
+ }
}
return self;
out_delete:
@@ -104,8 +114,7 @@ void map__fixup_end(struct map *self)
#define DSO__DELETED "(deleted)"
-int map__load(struct map *self, struct perf_session *session,
- symbol_filter_t filter)
+int map__load(struct map *self, symbol_filter_t filter)
{
const char *name = self->dso->long_name;
int nr;
@@ -113,7 +122,7 @@ int map__load(struct map *self, struct perf_session *session,
if (dso__loaded(self->dso, self->type))
return 0;
- nr = dso__load(self->dso, self, session, filter);
+ nr = dso__load(self->dso, self, filter);
if (nr < 0) {
if (self->dso->has_build_id) {
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
@@ -144,24 +153,29 @@ int map__load(struct map *self, struct perf_session *session,
return -1;
}
+ /*
+ * Only applies to the kernel, as its symtabs aren't relative like the
+ * module ones.
+ */
+ if (self->dso->kernel)
+ map__reloc_vmlinux(self);
return 0;
}
-struct symbol *map__find_symbol(struct map *self, struct perf_session *session,
- u64 addr, symbol_filter_t filter)
+struct symbol *map__find_symbol(struct map *self, u64 addr,
+ symbol_filter_t filter)
{
- if (map__load(self, session, filter) < 0)
+ if (map__load(self, filter) < 0)
return NULL;
return dso__find_symbol(self->dso, self->type, addr);
}
struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
- struct perf_session *session,
symbol_filter_t filter)
{
- if (map__load(self, session, filter) < 0)
+ if (map__load(self, filter) < 0)
return NULL;
if (!dso__sorted_by_name(self->dso, self->type))
@@ -201,3 +215,23 @@ size_t map__fprintf(struct map *self, FILE *fp)
return fprintf(fp, " %Lx-%Lx %Lx %s\n",
self->start, self->end, self->pgoff, self->dso->name);
}
+
+/*
+ * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN.
+ * map->dso->adjust_symbols==1 for ET_EXEC-like cases.
+ */
+u64 map__rip_2objdump(struct map *map, u64 rip)
+{
+ u64 addr = map->dso->adjust_symbols ?
+ map->unmap_ip(map, rip) : /* RIP -> IP */
+ rip;
+ return addr;
+}
+
+u64 map__objdump_2ip(struct map *map, u64 addr)
+{
+ u64 ip = map->dso->adjust_symbols ?
+ addr :
+ map->unmap_ip(map, addr); /* RIP -> IP */
+ return ip;
+}
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
new file mode 100644
index 000000000000..b756368076c6
--- /dev/null
+++ b/tools/perf/util/map.h
@@ -0,0 +1,94 @@
+#ifndef __PERF_MAP_H
+#define __PERF_MAP_H
+
+#include <linux/compiler.h>
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/types.h>
+
+enum map_type {
+ MAP__FUNCTION = 0,
+ MAP__VARIABLE,
+};
+
+#define MAP__NR_TYPES (MAP__VARIABLE + 1)
+
+extern const char *map_type__name[MAP__NR_TYPES];
+
+struct dso;
+struct ref_reloc_sym;
+struct map_groups;
+
+struct map {
+ union {
+ struct rb_node rb_node;
+ struct list_head node;
+ };
+ u64 start;
+ u64 end;
+ enum map_type type;
+ u64 pgoff;
+
+ /* ip -> dso rip */
+ u64 (*map_ip)(struct map *, u64);
+ /* dso rip -> ip */
+ u64 (*unmap_ip)(struct map *, u64);
+
+ struct dso *dso;
+};
+
+struct kmap {
+ struct ref_reloc_sym *ref_reloc_sym;
+ struct map_groups *kmaps;
+};
+
+static inline struct kmap *map__kmap(struct map *self)
+{
+ return (struct kmap *)(self + 1);
+}
+
+static inline u64 map__map_ip(struct map *map, u64 ip)
+{
+ return ip - map->start + map->pgoff;
+}
+
+static inline u64 map__unmap_ip(struct map *map, u64 ip)
+{
+ return ip + map->start - map->pgoff;
+}
+
+static inline u64 identity__map_ip(struct map *map __used, u64 ip)
+{
+ return ip;
+}
+
+
+/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
+u64 map__rip_2objdump(struct map *map, u64 rip);
+u64 map__objdump_2ip(struct map *map, u64 addr);
+
+struct symbol;
+struct mmap_event;
+
+typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
+
+void map__init(struct map *self, enum map_type type,
+ u64 start, u64 end, u64 pgoff, struct dso *dso);
+struct map *map__new(struct mmap_event *event, enum map_type,
+ char *cwd, int cwdlen);
+void map__delete(struct map *self);
+struct map *map__clone(struct map *self);
+int map__overlap(struct map *l, struct map *r);
+size_t map__fprintf(struct map *self, FILE *fp);
+
+int map__load(struct map *self, symbol_filter_t filter);
+struct symbol *map__find_symbol(struct map *self,
+ u64 addr, symbol_filter_t filter);
+struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
+ symbol_filter_t filter);
+void map__fixup_start(struct map *self);
+void map__fixup_end(struct map *self);
+
+void map__reloc_vmlinux(struct map *self);
+
+#endif /* __PERF_MAP_H */
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index e5bc0fb016b2..05d0c5c2030c 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -450,7 +450,8 @@ parse_single_tracepoint_event(char *sys_name,
/* sys + ':' + event + ':' + flags*/
#define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
static enum event_result
-parse_subsystem_tracepoint_event(char *sys_name, char *flags)
+parse_multiple_tracepoint_event(char *sys_name, const char *evt_exp,
+ char *flags)
{
char evt_path[MAXPATHLEN];
struct dirent *evt_ent;
@@ -474,6 +475,9 @@ parse_subsystem_tracepoint_event(char *sys_name, char *flags)
|| !strcmp(evt_ent->d_name, "filter"))
continue;
+ if (!strglobmatch(evt_ent->d_name, evt_exp))
+ continue;
+
len = snprintf(event_opt, MAX_EVOPT_LEN, "%s:%s%s%s", sys_name,
evt_ent->d_name, flags ? ":" : "",
flags ?: "");
@@ -522,9 +526,10 @@ static enum event_result parse_tracepoint_event(const char **strp,
if (evt_length >= MAX_EVENT_LENGTH)
return EVT_FAILED;
- if (!strcmp(evt_name, "*")) {
+ if (strpbrk(evt_name, "*?")) {
*strp = evt_name + evt_length;
- return parse_subsystem_tracepoint_event(sys_name, flags);
+ return parse_multiple_tracepoint_event(sys_name, evt_name,
+ flags);
} else
return parse_single_tracepoint_event(sys_name, evt_name,
evt_length, flags,
@@ -753,11 +758,11 @@ modifier:
return ret;
}
-static void store_event_type(const char *orgname)
+static int store_event_type(const char *orgname)
{
char filename[PATH_MAX], *c;
FILE *file;
- int id;
+ int id, n;
sprintf(filename, "%s/", debugfs_path);
strncat(filename, orgname, strlen(orgname));
@@ -769,11 +774,14 @@ static void store_event_type(const char *orgname)
file = fopen(filename, "r");
if (!file)
- return;
- if (fscanf(file, "%i", &id) < 1)
- die("cannot store event ID");
+ return 0;
+ n = fscanf(file, "%i", &id);
fclose(file);
- perf_header__push_event(id, orgname);
+ if (n < 1) {
+ pr_err("cannot store event ID\n");
+ return -EINVAL;
+ }
+ return perf_header__push_event(id, orgname);
}
int parse_events(const struct option *opt __used, const char *str, int unset __used)
@@ -782,7 +790,8 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u
enum event_result ret;
if (strchr(str, ':'))
- store_event_type(str);
+ if (store_event_type(str) < 0)
+ return -1;
for (;;) {
if (nr_counters == MAX_COUNTERS)
@@ -835,11 +844,12 @@ int parse_filter(const struct option *opt __used, const char *str,
}
static const char * const event_type_descriptors[] = {
- "",
"Hardware event",
"Software event",
"Tracepoint event",
"Hardware cache event",
+ "Raw hardware event descriptor",
+ "Hardware breakpoint",
};
/*
@@ -872,7 +882,7 @@ static void print_tracepoint_events(void)
snprintf(evt_path, MAXPATHLEN, "%s:%s",
sys_dirent.d_name, evt_dirent.d_name);
printf(" %-42s [%s]\n", evt_path,
- event_type_descriptors[PERF_TYPE_TRACEPOINT+1]);
+ event_type_descriptors[PERF_TYPE_TRACEPOINT]);
}
closedir(evt_dir);
}
@@ -892,9 +902,7 @@ void print_events(void)
printf("List of pre-defined events (to be used in -e):\n");
for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
- type = syms->type + 1;
- if (type >= ARRAY_SIZE(event_type_descriptors))
- type = 0;
+ type = syms->type;
if (type != prev_type)
printf("\n");
@@ -919,17 +927,19 @@ void print_events(void)
for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
printf(" %-42s [%s]\n",
event_cache_name(type, op, i),
- event_type_descriptors[4]);
+ event_type_descriptors[PERF_TYPE_HW_CACHE]);
}
}
}
printf("\n");
- printf(" %-42s [raw hardware event descriptor]\n",
- "rNNN");
+ printf(" %-42s [%s]\n",
+ "rNNN", event_type_descriptors[PERF_TYPE_RAW]);
printf("\n");
- printf(" %-42s [hardware breakpoint]\n", "mem:<addr>[:access]");
+ printf(" %-42s [%s]\n",
+ "mem:<addr>[:access]",
+ event_type_descriptors[PERF_TYPE_BREAKPOINT]);
printf("\n");
print_tracepoint_events();
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index fde17b090a47..8f0568849691 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -37,6 +37,8 @@
#include "string.h"
#include "strlist.h"
#include "debug.h"
+#include "cache.h"
+#include "color.h"
#include "parse-events.h" /* For debugfs_path */
#include "probe-event.h"
@@ -62,6 +64,42 @@ static int e_snprintf(char *str, size_t size, const char *format, ...)
return ret;
}
+void parse_line_range_desc(const char *arg, struct line_range *lr)
+{
+ const char *ptr;
+ char *tmp;
+ /*
+ * <Syntax>
+ * SRC:SLN[+NUM|-ELN]
+ * FUNC[:SLN[+NUM|-ELN]]
+ */
+ ptr = strchr(arg, ':');
+ if (ptr) {
+ lr->start = (unsigned int)strtoul(ptr + 1, &tmp, 0);
+ if (*tmp == '+')
+ lr->end = lr->start + (unsigned int)strtoul(tmp + 1,
+ &tmp, 0);
+ else if (*tmp == '-')
+ lr->end = (unsigned int)strtoul(tmp + 1, &tmp, 0);
+ else
+ lr->end = 0;
+ pr_debug("Line range is %u to %u\n", lr->start, lr->end);
+ if (lr->end && lr->start > lr->end)
+ semantic_error("Start line must be smaller"
+ " than end line.");
+ if (*tmp != '\0')
+ semantic_error("Tailing with invalid character '%d'.",
+ *tmp);
+ tmp = strndup(arg, (ptr - arg));
+ } else
+ tmp = strdup(arg);
+
+ if (strchr(tmp, '.'))
+ lr->file = tmp;
+ else
+ lr->function = tmp;
+}
+
/* Check the name is good for event/group */
static bool check_event_name(const char *name)
{
@@ -370,7 +408,7 @@ static int open_kprobe_events(int flags, int mode)
if (ret < 0) {
if (errno == ENOENT)
die("kprobe_events file does not exist -"
- " please rebuild with CONFIG_KPROBE_TRACER.");
+ " please rebuild with CONFIG_KPROBE_EVENT.");
else
die("Could not open kprobe_events file: %s",
strerror(errno));
@@ -457,6 +495,8 @@ void show_perf_probe_events(void)
struct strlist *rawlist;
struct str_node *ent;
+ setup_pager();
+
memset(&pp, 0, sizeof(pp));
fd = open_kprobe_events(O_RDONLY, 0);
rawlist = get_trace_kprobe_event_rawlist(fd);
@@ -678,3 +718,66 @@ void del_trace_kprobe_events(struct strlist *dellist)
close(fd);
}
+#define LINEBUF_SIZE 256
+
+static void show_one_line(FILE *fp, unsigned int l, bool skip, bool show_num)
+{
+ char buf[LINEBUF_SIZE];
+ const char *color = PERF_COLOR_BLUE;
+
+ if (fgets(buf, LINEBUF_SIZE, fp) == NULL)
+ goto error;
+ if (!skip) {
+ if (show_num)
+ fprintf(stdout, "%7u %s", l, buf);
+ else
+ color_fprintf(stdout, color, " %s", buf);
+ }
+
+ while (strlen(buf) == LINEBUF_SIZE - 1 &&
+ buf[LINEBUF_SIZE - 2] != '\n') {
+ if (fgets(buf, LINEBUF_SIZE, fp) == NULL)
+ goto error;
+ if (!skip) {
+ if (show_num)
+ fprintf(stdout, "%s", buf);
+ else
+ color_fprintf(stdout, color, "%s", buf);
+ }
+ }
+ return;
+error:
+ if (feof(fp))
+ die("Source file is shorter than expected.");
+ else
+ die("File read error: %s", strerror(errno));
+}
+
+void show_line_range(struct line_range *lr)
+{
+ unsigned int l = 1;
+ struct line_node *ln;
+ FILE *fp;
+
+ setup_pager();
+
+ if (lr->function)
+ fprintf(stdout, "<%s:%d>\n", lr->function,
+ lr->start - lr->offset);
+ else
+ fprintf(stdout, "<%s:%d>\n", lr->file, lr->start);
+
+ fp = fopen(lr->path, "r");
+ if (fp == NULL)
+ die("Failed to open %s: %s", lr->path, strerror(errno));
+ /* Skip to starting line number */
+ while (l < lr->start)
+ show_one_line(fp, l++, true, false);
+
+ list_for_each_entry(ln, &lr->line_list, list) {
+ while (ln->line > l)
+ show_one_line(fp, (l++) - lr->offset, false, false);
+ show_one_line(fp, (l++) - lr->offset, false, true);
+ }
+ fclose(fp);
+}
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 7f1d499118c0..711287d4baea 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -5,6 +5,7 @@
#include "probe-finder.h"
#include "strlist.h"
+extern void parse_line_range_desc(const char *arg, struct line_range *lr);
extern void parse_perf_probe_event(const char *str, struct probe_point *pp,
bool *need_dwarf);
extern int synthesize_perf_probe_point(struct probe_point *pp);
@@ -15,6 +16,7 @@ extern void add_trace_kprobe_events(struct probe_point *probes, int nr_probes,
bool force_add);
extern void del_trace_kprobe_events(struct strlist *dellist);
extern void show_perf_probe_events(void);
+extern void show_line_range(struct line_range *lr);
/* Maximum index number of event-name postfix */
#define MAX_EVENT_INDEX 1024
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 4b852c0d16a5..1b2124d12f68 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -140,6 +140,31 @@ static Dwarf_Unsigned cu_find_fileno(Dwarf_Die cu_die, const char *fname)
return found;
}
+static int cu_get_filename(Dwarf_Die cu_die, Dwarf_Unsigned fno, char **buf)
+{
+ Dwarf_Signed cnt, i;
+ char **srcs;
+ int ret = 0;
+
+ if (!buf || !fno)
+ return -EINVAL;
+
+ ret = dwarf_srcfiles(cu_die, &srcs, &cnt, &__dw_error);
+ if (ret == DW_DLV_OK) {
+ if ((Dwarf_Unsigned)cnt > fno - 1) {
+ *buf = strdup(srcs[fno - 1]);
+ ret = 0;
+ pr_debug("found filename: %s\n", *buf);
+ } else
+ ret = -ENOENT;
+ for (i = 0; i < cnt; i++)
+ dwarf_dealloc(__dw_debug, srcs[i], DW_DLA_STRING);
+ dwarf_dealloc(__dw_debug, srcs, DW_DLA_LIST);
+ } else
+ ret = -EINVAL;
+ return ret;
+}
+
/* Compare diename and tname */
static int die_compare_name(Dwarf_Die dw_die, const char *tname)
{
@@ -402,11 +427,11 @@ static void show_location(Dwarf_Loc *loc, struct probe_finder *pf)
} else if (op == DW_OP_regx) {
regn = loc->lr_number;
} else
- die("Dwarf_OP %d is not supported.\n", op);
+ die("Dwarf_OP %d is not supported.", op);
regs = get_arch_regstr(regn);
if (!regs)
- die("%lld exceeds max register number.\n", regn);
+ die("%lld exceeds max register number.", regn);
if (deref)
ret = snprintf(pf->buf, pf->len,
@@ -438,7 +463,7 @@ static void show_variable(Dwarf_Die vr_die, struct probe_finder *pf)
return ;
error:
die("Failed to find the location of %s at this address.\n"
- " Perhaps, it has been optimized out.\n", pf->var);
+ " Perhaps, it has been optimized out.", pf->var);
}
static int variable_callback(struct die_link *dlink, void *data)
@@ -476,7 +501,7 @@ static void find_variable(Dwarf_Die sp_die, struct probe_finder *pf)
/* Search child die for local variables and parameters. */
ret = search_die_from_children(sp_die, variable_callback, pf);
if (!ret)
- die("Failed to find '%s' in this function.\n", pf->var);
+ die("Failed to find '%s' in this function.", pf->var);
}
/* Get a frame base on the address */
@@ -567,7 +592,7 @@ static int probeaddr_callback(struct die_link *dlink, void *data)
}
/* Find probe point from its line number */
-static void find_by_line(struct probe_finder *pf)
+static void find_probe_point_by_line(struct probe_finder *pf)
{
Dwarf_Signed cnt, i, clm;
Dwarf_Line *lines;
@@ -602,7 +627,7 @@ static void find_by_line(struct probe_finder *pf)
ret = search_die_from_children(pf->cu_die,
probeaddr_callback, pf);
if (ret == 0)
- die("Probe point is not found in subprograms.\n");
+ die("Probe point is not found in subprograms.");
/* Continuing, because target line might be inlined. */
}
dwarf_srclines_dealloc(__dw_debug, lines, cnt);
@@ -626,7 +651,7 @@ static int probefunc_callback(struct die_link *dlink, void *data)
pf->fno = die_get_decl_file(dlink->die);
pf->lno = die_get_decl_line(dlink->die)
+ pp->line;
- find_by_line(pf);
+ find_probe_point_by_line(pf);
return 1;
}
if (die_inlined_subprogram(dlink->die)) {
@@ -661,7 +686,7 @@ static int probefunc_callback(struct die_link *dlink, void *data)
!die_inlined_subprogram(lk->die))
goto found;
}
- die("Failed to find real subprogram.\n");
+ die("Failed to find real subprogram.");
found:
/* Get offset from subprogram */
ret = die_within_subprogram(lk->die, pf->addr, &offs);
@@ -673,7 +698,7 @@ found:
return 0;
}
-static void find_by_func(struct probe_finder *pf)
+static void find_probe_point_by_func(struct probe_finder *pf)
{
search_die_from_children(pf->cu_die, probefunc_callback, pf);
}
@@ -714,10 +739,10 @@ int find_probepoint(int fd, struct probe_point *pp)
if (ret == DW_DLV_NO_ENTRY)
pf.cu_base = 0;
if (pp->function)
- find_by_func(&pf);
+ find_probe_point_by_func(&pf);
else {
pf.lno = pp->line;
- find_by_line(&pf);
+ find_probe_point_by_line(&pf);
}
}
dwarf_dealloc(__dw_debug, pf.cu_die, DW_DLA_DIE);
@@ -728,3 +753,159 @@ int find_probepoint(int fd, struct probe_point *pp)
return pp->found;
}
+
+static void line_range_add_line(struct line_range *lr, unsigned int line)
+{
+ struct line_node *ln;
+ struct list_head *p;
+
+ /* Reverse search, because new line will be the last one */
+ list_for_each_entry_reverse(ln, &lr->line_list, list) {
+ if (ln->line < line) {
+ p = &ln->list;
+ goto found;
+ } else if (ln->line == line) /* Already exist */
+ return ;
+ }
+ /* List is empty, or the smallest entry */
+ p = &lr->line_list;
+found:
+ pr_debug("Debug: add a line %u\n", line);
+ ln = zalloc(sizeof(struct line_node));
+ DIE_IF(ln == NULL);
+ ln->line = line;
+ INIT_LIST_HEAD(&ln->list);
+ list_add(&ln->list, p);
+}
+
+/* Find line range from its line number */
+static void find_line_range_by_line(struct line_finder *lf)
+{
+ Dwarf_Signed cnt, i;
+ Dwarf_Line *lines;
+ Dwarf_Unsigned lineno = 0;
+ Dwarf_Unsigned fno;
+ Dwarf_Addr addr;
+ int ret;
+
+ ret = dwarf_srclines(lf->cu_die, &lines, &cnt, &__dw_error);
+ DIE_IF(ret != DW_DLV_OK);
+
+ for (i = 0; i < cnt; i++) {
+ ret = dwarf_line_srcfileno(lines[i], &fno, &__dw_error);
+ DIE_IF(ret != DW_DLV_OK);
+ if (fno != lf->fno)
+ continue;
+
+ ret = dwarf_lineno(lines[i], &lineno, &__dw_error);
+ DIE_IF(ret != DW_DLV_OK);
+ if (lf->lno_s > lineno || lf->lno_e < lineno)
+ continue;
+
+ /* Filter line in the function address range */
+ if (lf->addr_s && lf->addr_e) {
+ ret = dwarf_lineaddr(lines[i], &addr, &__dw_error);
+ DIE_IF(ret != DW_DLV_OK);
+ if (lf->addr_s > addr || lf->addr_e <= addr)
+ continue;
+ }
+ line_range_add_line(lf->lr, (unsigned int)lineno);
+ }
+ dwarf_srclines_dealloc(__dw_debug, lines, cnt);
+ if (!list_empty(&lf->lr->line_list))
+ lf->found = 1;
+}
+
+/* Search function from function name */
+static int linefunc_callback(struct die_link *dlink, void *data)
+{
+ struct line_finder *lf = (struct line_finder *)data;
+ struct line_range *lr = lf->lr;
+ Dwarf_Half tag;
+ int ret;
+
+ ret = dwarf_tag(dlink->die, &tag, &__dw_error);
+ DIE_IF(ret == DW_DLV_ERROR);
+ if (tag == DW_TAG_subprogram &&
+ die_compare_name(dlink->die, lr->function) == 0) {
+ /* Get the address range of this function */
+ ret = dwarf_highpc(dlink->die, &lf->addr_e, &__dw_error);
+ if (ret == DW_DLV_OK)
+ ret = dwarf_lowpc(dlink->die, &lf->addr_s, &__dw_error);
+ DIE_IF(ret == DW_DLV_ERROR);
+ if (ret == DW_DLV_NO_ENTRY) {
+ lf->addr_s = 0;
+ lf->addr_e = 0;
+ }
+
+ lf->fno = die_get_decl_file(dlink->die);
+ lr->offset = die_get_decl_line(dlink->die);;
+ lf->lno_s = lr->offset + lr->start;
+ if (!lr->end)
+ lf->lno_e = (Dwarf_Unsigned)-1;
+ else
+ lf->lno_e = lr->offset + lr->end;
+ lr->start = lf->lno_s;
+ lr->end = lf->lno_e;
+ find_line_range_by_line(lf);
+ /* If we find a target function, this should be end. */
+ lf->found = 1;
+ return 1;
+ }
+ return 0;
+}
+
+static void find_line_range_by_func(struct line_finder *lf)
+{
+ search_die_from_children(lf->cu_die, linefunc_callback, lf);
+}
+
+int find_line_range(int fd, struct line_range *lr)
+{
+ Dwarf_Half addr_size = 0;
+ Dwarf_Unsigned next_cuh = 0;
+ int ret;
+ struct line_finder lf = {.lr = lr};
+
+ ret = dwarf_init(fd, DW_DLC_READ, 0, 0, &__dw_debug, &__dw_error);
+ if (ret != DW_DLV_OK)
+ return -ENOENT;
+
+ while (!lf.found) {
+ /* Search CU (Compilation Unit) */
+ ret = dwarf_next_cu_header(__dw_debug, NULL, NULL, NULL,
+ &addr_size, &next_cuh, &__dw_error);
+ DIE_IF(ret == DW_DLV_ERROR);
+ if (ret == DW_DLV_NO_ENTRY)
+ break;
+
+ /* Get the DIE(Debugging Information Entry) of this CU */
+ ret = dwarf_siblingof(__dw_debug, 0, &lf.cu_die, &__dw_error);
+ DIE_IF(ret != DW_DLV_OK);
+
+ /* Check if target file is included. */
+ if (lr->file)
+ lf.fno = cu_find_fileno(lf.cu_die, lr->file);
+
+ if (!lr->file || lf.fno) {
+ if (lr->function)
+ find_line_range_by_func(&lf);
+ else {
+ lf.lno_s = lr->start;
+ if (!lr->end)
+ lf.lno_e = (Dwarf_Unsigned)-1;
+ else
+ lf.lno_e = lr->end;
+ find_line_range_by_line(&lf);
+ }
+ /* Get the real file path */
+ if (lf.found)
+ cu_get_filename(lf.cu_die, lf.fno, &lr->path);
+ }
+ dwarf_dealloc(__dw_debug, lf.cu_die, DW_DLA_DIE);
+ }
+ ret = dwarf_finish(__dw_debug, &__dw_error);
+ DIE_IF(ret != DW_DLV_OK);
+ return lf.found;
+}
+
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index a4086aaddb73..972b386116f1 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -1,6 +1,8 @@
#ifndef _PROBE_FINDER_H
#define _PROBE_FINDER_H
+#include "util.h"
+
#define MAX_PATH_LEN 256
#define MAX_PROBE_BUFFER 1024
#define MAX_PROBES 128
@@ -32,8 +34,26 @@ struct probe_point {
char *probes[MAX_PROBES]; /* Output buffers (will be allocated)*/
};
+/* Line number container */
+struct line_node {
+ struct list_head list;
+ unsigned int line;
+};
+
+/* Line range */
+struct line_range {
+ char *file; /* File name */
+ char *function; /* Function name */
+ unsigned int start; /* Start line number */
+ unsigned int end; /* End line number */
+ unsigned int offset; /* Start line offset */
+ char *path; /* Real path name */
+ struct list_head line_list; /* Visible lines */
+};
+
#ifndef NO_LIBDWARF
extern int find_probepoint(int fd, struct probe_point *pp);
+extern int find_line_range(int fd, struct line_range *lr);
/* Workaround for undefined _MIPS_SZLONG bug in libdwarf.h: */
#ifndef _MIPS_SZLONG
@@ -60,6 +80,19 @@ struct probe_finder {
char *buf; /* Current output buffer */
int len; /* Length of output buffer */
};
+
+struct line_finder {
+ struct line_range *lr; /* Target line range */
+
+ Dwarf_Unsigned fno; /* File number */
+ Dwarf_Unsigned lno_s; /* Start line number */
+ Dwarf_Unsigned lno_e; /* End line number */
+ Dwarf_Addr addr_s; /* Start address */
+ Dwarf_Addr addr_e; /* End address */
+ Dwarf_Die cu_die; /* Current CU */
+ int found;
+};
+
#endif /* NO_LIBDWARF */
#endif /*_PROBE_FINDER_H */
diff --git a/tools/perf/util/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 6d6d76b8a21e..5376378e0cfc 100644
--- a/tools/perf/util/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -25,10 +25,16 @@
#include <ctype.h>
#include <errno.h>
-#include "../perf.h"
-#include "util.h"
-#include "trace-event.h"
-#include "trace-event-perl.h"
+#include "../../perf.h"
+#include "../util.h"
+#include "../trace-event.h"
+
+#include <EXTERN.h>
+#include <perl.h>
+
+void boot_Perf__Trace__Context(pTHX_ CV *cv);
+void boot_DynaLoader(pTHX_ CV *cv);
+typedef PerlInterpreter * INTERP;
void xs_init(pTHX);
@@ -49,7 +55,7 @@ INTERP my_perl;
struct event *events[FTRACE_MAX_EVENT];
-static struct scripting_context *scripting_context;
+extern struct scripting_context *scripting_context;
static char *cur_field_name;
static int zero_flag_atom;
@@ -239,33 +245,6 @@ static inline struct event *find_cache_event(int type)
return event;
}
-int common_pc(struct scripting_context *context)
-{
- int pc;
-
- pc = parse_common_pc(context->event_data);
-
- return pc;
-}
-
-int common_flags(struct scripting_context *context)
-{
- int flags;
-
- flags = parse_common_flags(context->event_data);
-
- return flags;
-}
-
-int common_lock_depth(struct scripting_context *context)
-{
- int lock_depth;
-
- lock_depth = parse_common_lock_depth(context->event_data);
-
- return lock_depth;
-}
-
static void perl_process_event(int cpu, void *data,
int size __unused,
unsigned long long nsecs, char *comm)
@@ -587,75 +566,3 @@ struct scripting_ops perl_scripting_ops = {
.process_event = perl_process_event,
.generate_script = perl_generate_script,
};
-
-static void print_unsupported_msg(void)
-{
- fprintf(stderr, "Perl scripting not supported."
- " Install libperl and rebuild perf to enable it.\n"
- "For example:\n # apt-get install libperl-dev (ubuntu)"
- "\n # yum install perl-ExtUtils-Embed (Fedora)"
- "\n etc.\n");
-}
-
-static int perl_start_script_unsupported(const char *script __unused,
- int argc __unused,
- const char **argv __unused)
-{
- print_unsupported_msg();
-
- return -1;
-}
-
-static int perl_stop_script_unsupported(void)
-{
- return 0;
-}
-
-static void perl_process_event_unsupported(int cpu __unused,
- void *data __unused,
- int size __unused,
- unsigned long long nsecs __unused,
- char *comm __unused)
-{
-}
-
-static int perl_generate_script_unsupported(const char *outfile __unused)
-{
- print_unsupported_msg();
-
- return -1;
-}
-
-struct scripting_ops perl_scripting_unsupported_ops = {
- .name = "Perl",
- .start_script = perl_start_script_unsupported,
- .stop_script = perl_stop_script_unsupported,
- .process_event = perl_process_event_unsupported,
- .generate_script = perl_generate_script_unsupported,
-};
-
-static void register_perl_scripting(struct scripting_ops *scripting_ops)
-{
- int err;
- err = script_spec_register("Perl", scripting_ops);
- if (err)
- die("error registering Perl script extension");
-
- err = script_spec_register("pl", scripting_ops);
- if (err)
- die("error registering pl script extension");
-
- scripting_context = malloc(sizeof(struct scripting_context));
-}
-
-#ifdef NO_LIBPERL
-void setup_perl_scripting(void)
-{
- register_perl_scripting(&perl_scripting_unsupported_ops);
-}
-#else
-void setup_perl_scripting(void)
-{
- register_perl_scripting(&perl_scripting_ops);
-}
-#endif
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
new file mode 100644
index 000000000000..33a414bbba3e
--- /dev/null
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -0,0 +1,573 @@
+/*
+ * trace-event-python. Feed trace events to an embedded Python interpreter.
+ *
+ * Copyright (C) 2010 Tom Zanussi <tzanussi@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <Python.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "../../perf.h"
+#include "../util.h"
+#include "../trace-event.h"
+
+PyMODINIT_FUNC initperf_trace_context(void);
+
+#define FTRACE_MAX_EVENT \
+ ((1 << (sizeof(unsigned short) * 8)) - 1)
+
+struct event *events[FTRACE_MAX_EVENT];
+
+#define MAX_FIELDS 64
+#define N_COMMON_FIELDS 7
+
+extern struct scripting_context *scripting_context;
+
+static char *cur_field_name;
+static int zero_flag_atom;
+
+static PyObject *main_module, *main_dict;
+
+static void handler_call_die(const char *handler_name)
+{
+ PyErr_Print();
+ Py_FatalError("problem in Python trace event handler");
+}
+
+static void define_value(enum print_arg_type field_type,
+ const char *ev_name,
+ const char *field_name,
+ const char *field_value,
+ const char *field_str)
+{
+ const char *handler_name = "define_flag_value";
+ PyObject *handler, *t, *retval;
+ unsigned long long value;
+ unsigned n = 0;
+
+ if (field_type == PRINT_SYMBOL)
+ handler_name = "define_symbolic_value";
+
+ t = PyTuple_New(4);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ value = eval_flag(field_value);
+
+ PyTuple_SetItem(t, n++, PyString_FromString(ev_name));
+ PyTuple_SetItem(t, n++, PyString_FromString(field_name));
+ PyTuple_SetItem(t, n++, PyInt_FromLong(value));
+ PyTuple_SetItem(t, n++, PyString_FromString(field_str));
+
+ handler = PyDict_GetItemString(main_dict, handler_name);
+ if (handler && PyCallable_Check(handler)) {
+ retval = PyObject_CallObject(handler, t);
+ if (retval == NULL)
+ handler_call_die(handler_name);
+ }
+
+ Py_DECREF(t);
+}
+
+static void define_values(enum print_arg_type field_type,
+ struct print_flag_sym *field,
+ const char *ev_name,
+ const char *field_name)
+{
+ define_value(field_type, ev_name, field_name, field->value,
+ field->str);
+
+ if (field->next)
+ define_values(field_type, field->next, ev_name, field_name);
+}
+
+static void define_field(enum print_arg_type field_type,
+ const char *ev_name,
+ const char *field_name,
+ const char *delim)
+{
+ const char *handler_name = "define_flag_field";
+ PyObject *handler, *t, *retval;
+ unsigned n = 0;
+
+ if (field_type == PRINT_SYMBOL)
+ handler_name = "define_symbolic_field";
+
+ if (field_type == PRINT_FLAGS)
+ t = PyTuple_New(3);
+ else
+ t = PyTuple_New(2);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ PyTuple_SetItem(t, n++, PyString_FromString(ev_name));
+ PyTuple_SetItem(t, n++, PyString_FromString(field_name));
+ if (field_type == PRINT_FLAGS)
+ PyTuple_SetItem(t, n++, PyString_FromString(delim));
+
+ handler = PyDict_GetItemString(main_dict, handler_name);
+ if (handler && PyCallable_Check(handler)) {
+ retval = PyObject_CallObject(handler, t);
+ if (retval == NULL)
+ handler_call_die(handler_name);
+ }
+
+ Py_DECREF(t);
+}
+
+static void define_event_symbols(struct event *event,
+ const char *ev_name,
+ struct print_arg *args)
+{
+ switch (args->type) {
+ case PRINT_NULL:
+ break;
+ case PRINT_ATOM:
+ define_value(PRINT_FLAGS, ev_name, cur_field_name, "0",
+ args->atom.atom);
+ zero_flag_atom = 0;
+ break;
+ case PRINT_FIELD:
+ if (cur_field_name)
+ free(cur_field_name);
+ cur_field_name = strdup(args->field.name);
+ break;
+ case PRINT_FLAGS:
+ define_event_symbols(event, ev_name, args->flags.field);
+ define_field(PRINT_FLAGS, ev_name, cur_field_name,
+ args->flags.delim);
+ define_values(PRINT_FLAGS, args->flags.flags, ev_name,
+ cur_field_name);
+ break;
+ case PRINT_SYMBOL:
+ define_event_symbols(event, ev_name, args->symbol.field);
+ define_field(PRINT_SYMBOL, ev_name, cur_field_name, NULL);
+ define_values(PRINT_SYMBOL, args->symbol.symbols, ev_name,
+ cur_field_name);
+ break;
+ case PRINT_STRING:
+ break;
+ case PRINT_TYPE:
+ define_event_symbols(event, ev_name, args->typecast.item);
+ break;
+ case PRINT_OP:
+ if (strcmp(args->op.op, ":") == 0)
+ zero_flag_atom = 1;
+ define_event_symbols(event, ev_name, args->op.left);
+ define_event_symbols(event, ev_name, args->op.right);
+ break;
+ default:
+ /* we should warn... */
+ return;
+ }
+
+ if (args->next)
+ define_event_symbols(event, ev_name, args->next);
+}
+
+static inline struct event *find_cache_event(int type)
+{
+ static char ev_name[256];
+ struct event *event;
+
+ if (events[type])
+ return events[type];
+
+ events[type] = event = trace_find_event(type);
+ if (!event)
+ return NULL;
+
+ sprintf(ev_name, "%s__%s", event->system, event->name);
+
+ define_event_symbols(event, ev_name, event->print_fmt.args);
+
+ return event;
+}
+
+static void python_process_event(int cpu, void *data,
+ int size __unused,
+ unsigned long long nsecs, char *comm)
+{
+ PyObject *handler, *retval, *context, *t;
+ static char handler_name[256];
+ struct format_field *field;
+ unsigned long long val;
+ unsigned long s, ns;
+ struct event *event;
+ unsigned n = 0;
+ int type;
+ int pid;
+
+ t = PyTuple_New(MAX_FIELDS);
+ if (!t)
+ Py_FatalError("couldn't create Python tuple");
+
+ type = trace_parse_common_type(data);
+
+ event = find_cache_event(type);
+ if (!event)
+ die("ug! no event found for type %d", type);
+
+ pid = trace_parse_common_pid(data);
+
+ sprintf(handler_name, "%s__%s", event->system, event->name);
+
+ s = nsecs / NSECS_PER_SEC;
+ ns = nsecs - s * NSECS_PER_SEC;
+
+ scripting_context->event_data = data;
+
+ context = PyCObject_FromVoidPtr(scripting_context, NULL);
+
+ PyTuple_SetItem(t, n++, PyString_FromString(handler_name));
+ PyTuple_SetItem(t, n++,
+ PyCObject_FromVoidPtr(scripting_context, NULL));
+ PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
+ PyTuple_SetItem(t, n++, PyInt_FromLong(s));
+ PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
+ PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
+ PyTuple_SetItem(t, n++, PyString_FromString(comm));
+
+ for (field = event->format.fields; field; field = field->next) {
+ if (field->flags & FIELD_IS_STRING) {
+ int offset;
+ if (field->flags & FIELD_IS_DYNAMIC) {
+ offset = *(int *)(data + field->offset);
+ offset &= 0xffff;
+ } else
+ offset = field->offset;
+ PyTuple_SetItem(t, n++,
+ PyString_FromString((char *)data + offset));
+ } else { /* FIELD_IS_NUMERIC */
+ val = read_size(data + field->offset, field->size);
+ if (field->flags & FIELD_IS_SIGNED) {
+ PyTuple_SetItem(t, n++, PyInt_FromLong(val));
+ } else {
+ PyTuple_SetItem(t, n++, PyInt_FromLong(val));
+ }
+ }
+ }
+
+ if (_PyTuple_Resize(&t, n) == -1)
+ Py_FatalError("error resizing Python tuple");
+
+ handler = PyDict_GetItemString(main_dict, handler_name);
+ if (handler && PyCallable_Check(handler)) {
+ retval = PyObject_CallObject(handler, t);
+ if (retval == NULL)
+ handler_call_die(handler_name);
+ } else {
+ handler = PyDict_GetItemString(main_dict, "trace_unhandled");
+ if (handler && PyCallable_Check(handler)) {
+ if (_PyTuple_Resize(&t, N_COMMON_FIELDS) == -1)
+ Py_FatalError("error resizing Python tuple");
+
+ retval = PyObject_CallObject(handler, t);
+ if (retval == NULL)
+ handler_call_die("trace_unhandled");
+ }
+ }
+
+ Py_DECREF(t);
+}
+
+static int run_start_sub(void)
+{
+ PyObject *handler, *retval;
+ int err = 0;
+
+ main_module = PyImport_AddModule("__main__");
+ if (main_module == NULL)
+ return -1;
+ Py_INCREF(main_module);
+
+ main_dict = PyModule_GetDict(main_module);
+ if (main_dict == NULL) {
+ err = -1;
+ goto error;
+ }
+ Py_INCREF(main_dict);
+
+ handler = PyDict_GetItemString(main_dict, "trace_begin");
+ if (handler == NULL || !PyCallable_Check(handler))
+ goto out;
+
+ retval = PyObject_CallObject(handler, NULL);
+ if (retval == NULL)
+ handler_call_die("trace_begin");
+
+ Py_DECREF(retval);
+ return err;
+error:
+ Py_XDECREF(main_dict);
+ Py_XDECREF(main_module);
+out:
+ return err;
+}
+
+/*
+ * Start trace script
+ */
+static int python_start_script(const char *script, int argc, const char **argv)
+{
+ const char **command_line;
+ char buf[PATH_MAX];
+ int i, err = 0;
+ FILE *fp;
+
+ command_line = malloc((argc + 1) * sizeof(const char *));
+ command_line[0] = script;
+ for (i = 1; i < argc + 1; i++)
+ command_line[i] = argv[i - 1];
+
+ Py_Initialize();
+
+ initperf_trace_context();
+
+ PySys_SetArgv(argc + 1, (char **)command_line);
+
+ fp = fopen(script, "r");
+ if (!fp) {
+ sprintf(buf, "Can't open python script \"%s\"", script);
+ perror(buf);
+ err = -1;
+ goto error;
+ }
+
+ err = PyRun_SimpleFile(fp, script);
+ if (err) {
+ fprintf(stderr, "Error running python script %s\n", script);
+ goto error;
+ }
+
+ err = run_start_sub();
+ if (err) {
+ fprintf(stderr, "Error starting python script %s\n", script);
+ goto error;
+ }
+
+ free(command_line);
+ fprintf(stderr, "perf trace started with Python script %s\n\n",
+ script);
+
+ return err;
+error:
+ Py_Finalize();
+ free(command_line);
+
+ return err;
+}
+
+/*
+ * Stop trace script
+ */
+static int python_stop_script(void)
+{
+ PyObject *handler, *retval;
+ int err = 0;
+
+ handler = PyDict_GetItemString(main_dict, "trace_end");
+ if (handler == NULL || !PyCallable_Check(handler))
+ goto out;
+
+ retval = PyObject_CallObject(handler, NULL);
+ if (retval == NULL)
+ handler_call_die("trace_end");
+ else
+ Py_DECREF(retval);
+out:
+ Py_XDECREF(main_dict);
+ Py_XDECREF(main_module);
+ Py_Finalize();
+
+ fprintf(stderr, "\nperf trace Python script stopped\n");
+
+ return err;
+}
+
+static int python_generate_script(const char *outfile)
+{
+ struct event *event = NULL;
+ struct format_field *f;
+ char fname[PATH_MAX];
+ int not_first, count;
+ FILE *ofp;
+
+ sprintf(fname, "%s.py", outfile);
+ ofp = fopen(fname, "w");
+ if (ofp == NULL) {
+ fprintf(stderr, "couldn't open %s\n", fname);
+ return -1;
+ }
+ fprintf(ofp, "# perf trace event handlers, "
+ "generated by perf trace -g python\n");
+
+ fprintf(ofp, "# Licensed under the terms of the GNU GPL"
+ " License version 2\n\n");
+
+ fprintf(ofp, "# The common_* event handler fields are the most useful "
+ "fields common to\n");
+
+ fprintf(ofp, "# all events. They don't necessarily correspond to "
+ "the 'common_*' fields\n");
+
+ fprintf(ofp, "# in the format files. Those fields not available as "
+ "handler params can\n");
+
+ fprintf(ofp, "# be retrieved using Python functions of the form "
+ "common_*(context).\n");
+
+ fprintf(ofp, "# See the perf-trace-python Documentation for the list "
+ "of available functions.\n\n");
+
+ fprintf(ofp, "import os\n");
+ fprintf(ofp, "import sys\n\n");
+
+ fprintf(ofp, "sys.path.append(os.environ['PERF_EXEC_PATH'] + \\\n");
+ fprintf(ofp, "\t'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')\n");
+ fprintf(ofp, "\nfrom perf_trace_context import *\n");
+ fprintf(ofp, "from Core import *\n\n\n");
+
+ fprintf(ofp, "def trace_begin():\n");
+ fprintf(ofp, "\tprint \"in trace_begin\"\n\n");
+
+ fprintf(ofp, "def trace_end():\n");
+ fprintf(ofp, "\tprint \"in trace_end\"\n\n");
+
+ while ((event = trace_find_next_event(event))) {
+ fprintf(ofp, "def %s__%s(", event->system, event->name);
+ fprintf(ofp, "event_name, ");
+ fprintf(ofp, "context, ");
+ fprintf(ofp, "common_cpu,\n");
+ fprintf(ofp, "\tcommon_secs, ");
+ fprintf(ofp, "common_nsecs, ");
+ fprintf(ofp, "common_pid, ");
+ fprintf(ofp, "common_comm,\n\t");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t");
+
+ fprintf(ofp, "%s", f->name);
+ }
+ fprintf(ofp, "):\n");
+
+ fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
+ "common_secs, common_nsecs,\n\t\t\t"
+ "common_pid, common_comm)\n\n");
+
+ fprintf(ofp, "\t\tprint \"");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (count && count % 3 == 0) {
+ fprintf(ofp, "\" \\\n\t\t\"");
+ }
+ count++;
+
+ fprintf(ofp, "%s=", f->name);
+ if (f->flags & FIELD_IS_STRING ||
+ f->flags & FIELD_IS_FLAG ||
+ f->flags & FIELD_IS_SYMBOLIC)
+ fprintf(ofp, "%%s");
+ else if (f->flags & FIELD_IS_SIGNED)
+ fprintf(ofp, "%%d");
+ else
+ fprintf(ofp, "%%u");
+ }
+
+ fprintf(ofp, "\\n\" %% \\\n\t\t(");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t\t");
+
+ if (f->flags & FIELD_IS_FLAG) {
+ if ((count - 1) % 5 != 0) {
+ fprintf(ofp, "\n\t\t");
+ count = 4;
+ }
+ fprintf(ofp, "flag_str(\"");
+ fprintf(ofp, "%s__%s\", ", event->system,
+ event->name);
+ fprintf(ofp, "\"%s\", %s)", f->name,
+ f->name);
+ } else if (f->flags & FIELD_IS_SYMBOLIC) {
+ if ((count - 1) % 5 != 0) {
+ fprintf(ofp, "\n\t\t");
+ count = 4;
+ }
+ fprintf(ofp, "symbol_str(\"");
+ fprintf(ofp, "%s__%s\", ", event->system,
+ event->name);
+ fprintf(ofp, "\"%s\", %s)", f->name,
+ f->name);
+ } else
+ fprintf(ofp, "%s", f->name);
+ }
+
+ fprintf(ofp, "),\n\n");
+ }
+
+ fprintf(ofp, "def trace_unhandled(event_name, context, "
+ "common_cpu, common_secs, common_nsecs,\n\t\t"
+ "common_pid, common_comm):\n");
+
+ fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
+ "common_secs, common_nsecs,\n\t\tcommon_pid, "
+ "common_comm)\n\n");
+
+ fprintf(ofp, "def print_header("
+ "event_name, cpu, secs, nsecs, pid, comm):\n"
+ "\tprint \"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t"
+ "(event_name, cpu, secs, nsecs, pid, comm),\n");
+
+ fclose(ofp);
+
+ fprintf(stderr, "generated Python script: %s\n", fname);
+
+ return 0;
+}
+
+struct scripting_ops python_scripting_ops = {
+ .name = "Python",
+ .start_script = python_start_script,
+ .stop_script = python_stop_script,
+ .process_event = python_process_event,
+ .generate_script = python_generate_script,
+};
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ce3a6c8abe76..0de7258e70a5 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1,5 +1,8 @@
+#define _FILE_OFFSET_BITS 64
+
#include <linux/kernel.h>
+#include <byteswap.h>
#include <unistd.h>
#include <sys/types.h>
@@ -49,6 +52,11 @@ out_close:
return -1;
}
+static inline int perf_session__create_kernel_maps(struct perf_session *self)
+{
+ return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
+}
+
struct perf_session *perf_session__new(const char *filename, int mode, bool force)
{
size_t len = filename ? strlen(filename) + 1 : 0;
@@ -66,13 +74,22 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
self->mmap_window = 32;
self->cwd = NULL;
self->cwdlen = 0;
+ self->unknown_events = 0;
map_groups__init(&self->kmaps);
- if (perf_session__create_kernel_maps(self) < 0)
- goto out_delete;
+ if (mode == O_RDONLY) {
+ if (perf_session__open(self, force) < 0)
+ goto out_delete;
+ } else if (mode == O_WRONLY) {
+ /*
+ * In O_RDONLY mode this will be performed when reading the
+ * kernel MMAP event, in event__process_mmap().
+ */
+ if (perf_session__create_kernel_maps(self) < 0)
+ goto out_delete;
+ }
- if (mode == O_RDONLY && perf_session__open(self, force) < 0)
- goto out_delete;
+ self->sample_type = perf_header__sample_type(&self->header);
out:
return self;
out_free:
@@ -148,3 +165,409 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self,
return syms;
}
+
+static int process_event_stub(event_t *event __used,
+ struct perf_session *session __used)
+{
+ dump_printf(": unhandled!\n");
+ return 0;
+}
+
+static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
+{
+ if (handler->sample == NULL)
+ handler->sample = process_event_stub;
+ if (handler->mmap == NULL)
+ handler->mmap = process_event_stub;
+ if (handler->comm == NULL)
+ handler->comm = process_event_stub;
+ if (handler->fork == NULL)
+ handler->fork = process_event_stub;
+ if (handler->exit == NULL)
+ handler->exit = process_event_stub;
+ if (handler->lost == NULL)
+ handler->lost = process_event_stub;
+ if (handler->read == NULL)
+ handler->read = process_event_stub;
+ if (handler->throttle == NULL)
+ handler->throttle = process_event_stub;
+ if (handler->unthrottle == NULL)
+ handler->unthrottle = process_event_stub;
+}
+
+static const char *event__name[] = {
+ [0] = "TOTAL",
+ [PERF_RECORD_MMAP] = "MMAP",
+ [PERF_RECORD_LOST] = "LOST",
+ [PERF_RECORD_COMM] = "COMM",
+ [PERF_RECORD_EXIT] = "EXIT",
+ [PERF_RECORD_THROTTLE] = "THROTTLE",
+ [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
+ [PERF_RECORD_FORK] = "FORK",
+ [PERF_RECORD_READ] = "READ",
+ [PERF_RECORD_SAMPLE] = "SAMPLE",
+};
+
+unsigned long event__total[PERF_RECORD_MAX];
+
+void event__print_totals(void)
+{
+ int i;
+ for (i = 0; i < PERF_RECORD_MAX; ++i)
+ pr_info("%10s events: %10ld\n",
+ event__name[i], event__total[i]);
+}
+
+void mem_bswap_64(void *src, int byte_size)
+{
+ u64 *m = src;
+
+ while (byte_size > 0) {
+ *m = bswap_64(*m);
+ byte_size -= sizeof(u64);
+ ++m;
+ }
+}
+
+static void event__all64_swap(event_t *self)
+{
+ struct perf_event_header *hdr = &self->header;
+ mem_bswap_64(hdr + 1, self->header.size - sizeof(*hdr));
+}
+
+static void event__comm_swap(event_t *self)
+{
+ self->comm.pid = bswap_32(self->comm.pid);
+ self->comm.tid = bswap_32(self->comm.tid);
+}
+
+static void event__mmap_swap(event_t *self)
+{
+ self->mmap.pid = bswap_32(self->mmap.pid);
+ self->mmap.tid = bswap_32(self->mmap.tid);
+ self->mmap.start = bswap_64(self->mmap.start);
+ self->mmap.len = bswap_64(self->mmap.len);
+ self->mmap.pgoff = bswap_64(self->mmap.pgoff);
+}
+
+static void event__task_swap(event_t *self)
+{
+ self->fork.pid = bswap_32(self->fork.pid);
+ self->fork.tid = bswap_32(self->fork.tid);
+ self->fork.ppid = bswap_32(self->fork.ppid);
+ self->fork.ptid = bswap_32(self->fork.ptid);
+ self->fork.time = bswap_64(self->fork.time);
+}
+
+static void event__read_swap(event_t *self)
+{
+ self->read.pid = bswap_32(self->read.pid);
+ self->read.tid = bswap_32(self->read.tid);
+ self->read.value = bswap_64(self->read.value);
+ self->read.time_enabled = bswap_64(self->read.time_enabled);
+ self->read.time_running = bswap_64(self->read.time_running);
+ self->read.id = bswap_64(self->read.id);
+}
+
+typedef void (*event__swap_op)(event_t *self);
+
+static event__swap_op event__swap_ops[] = {
+ [PERF_RECORD_MMAP] = event__mmap_swap,
+ [PERF_RECORD_COMM] = event__comm_swap,
+ [PERF_RECORD_FORK] = event__task_swap,
+ [PERF_RECORD_EXIT] = event__task_swap,
+ [PERF_RECORD_LOST] = event__all64_swap,
+ [PERF_RECORD_READ] = event__read_swap,
+ [PERF_RECORD_SAMPLE] = event__all64_swap,
+ [PERF_RECORD_MAX] = NULL,
+};
+
+static int perf_session__process_event(struct perf_session *self,
+ event_t *event,
+ struct perf_event_ops *ops,
+ u64 offset, u64 head)
+{
+ trace_event(event);
+
+ if (event->header.type < PERF_RECORD_MAX) {
+ dump_printf("%#Lx [%#x]: PERF_RECORD_%s",
+ offset + head, event->header.size,
+ event__name[event->header.type]);
+ ++event__total[0];
+ ++event__total[event->header.type];
+ }
+
+ if (self->header.needs_swap && event__swap_ops[event->header.type])
+ event__swap_ops[event->header.type](event);
+
+ switch (event->header.type) {
+ case PERF_RECORD_SAMPLE:
+ return ops->sample(event, self);
+ case PERF_RECORD_MMAP:
+ return ops->mmap(event, self);
+ case PERF_RECORD_COMM:
+ return ops->comm(event, self);
+ case PERF_RECORD_FORK:
+ return ops->fork(event, self);
+ case PERF_RECORD_EXIT:
+ return ops->exit(event, self);
+ case PERF_RECORD_LOST:
+ return ops->lost(event, self);
+ case PERF_RECORD_READ:
+ return ops->read(event, self);
+ case PERF_RECORD_THROTTLE:
+ return ops->throttle(event, self);
+ case PERF_RECORD_UNTHROTTLE:
+ return ops->unthrottle(event, self);
+ default:
+ self->unknown_events++;
+ return -1;
+ }
+}
+
+void perf_event_header__bswap(struct perf_event_header *self)
+{
+ self->type = bswap_32(self->type);
+ self->misc = bswap_16(self->misc);
+ self->size = bswap_16(self->size);
+}
+
+int perf_header__read_build_ids(struct perf_header *self,
+ int input, u64 offset, u64 size)
+{
+ struct build_id_event bev;
+ char filename[PATH_MAX];
+ u64 limit = offset + size;
+ int err = -1;
+
+ while (offset < limit) {
+ struct dso *dso;
+ ssize_t len;
+ struct list_head *head = &dsos__user;
+
+ if (read(input, &bev, sizeof(bev)) != sizeof(bev))
+ goto out;
+
+ if (self->needs_swap)
+ perf_event_header__bswap(&bev.header);
+
+ len = bev.header.size - sizeof(bev);
+ if (read(input, filename, len) != len)
+ goto out;
+
+ if (bev.header.misc & PERF_RECORD_MISC_KERNEL)
+ head = &dsos__kernel;
+
+ dso = __dsos__findnew(head, filename);
+ if (dso != NULL) {
+ dso__set_build_id(dso, &bev.build_id);
+ if (head == &dsos__kernel && filename[0] == '[')
+ dso->kernel = 1;
+ }
+
+ offset += bev.header.size;
+ }
+ err = 0;
+out:
+ return err;
+}
+
+static struct thread *perf_session__register_idle_thread(struct perf_session *self)
+{
+ struct thread *thread = perf_session__findnew(self, 0);
+
+ if (thread == NULL || thread__set_comm(thread, "swapper")) {
+ pr_err("problem inserting idle task.\n");
+ thread = NULL;
+ }
+
+ return thread;
+}
+
+int __perf_session__process_events(struct perf_session *self,
+ u64 data_offset, u64 data_size,
+ u64 file_size, struct perf_event_ops *ops)
+{
+ int err, mmap_prot, mmap_flags;
+ u64 head, shift;
+ u64 offset = 0;
+ size_t page_size;
+ event_t *event;
+ uint32_t size;
+ char *buf;
+
+ perf_event_ops__fill_defaults(ops);
+
+ page_size = sysconf(_SC_PAGESIZE);
+
+ head = data_offset;
+ shift = page_size * (head / page_size);
+ offset += shift;
+ head -= shift;
+
+ mmap_prot = PROT_READ;
+ mmap_flags = MAP_SHARED;
+
+ if (self->header.needs_swap) {
+ mmap_prot |= PROT_WRITE;
+ mmap_flags = MAP_PRIVATE;
+ }
+remap:
+ buf = mmap(NULL, page_size * self->mmap_window, mmap_prot,
+ mmap_flags, self->fd, offset);
+ if (buf == MAP_FAILED) {
+ pr_err("failed to mmap file\n");
+ err = -errno;
+ goto out_err;
+ }
+
+more:
+ event = (event_t *)(buf + head);
+
+ if (self->header.needs_swap)
+ perf_event_header__bswap(&event->header);
+ size = event->header.size;
+ if (size == 0)
+ size = 8;
+
+ if (head + event->header.size >= page_size * self->mmap_window) {
+ int munmap_ret;
+
+ shift = page_size * (head / page_size);
+
+ munmap_ret = munmap(buf, page_size * self->mmap_window);
+ assert(munmap_ret == 0);
+
+ offset += shift;
+ head -= shift;
+ goto remap;
+ }
+
+ size = event->header.size;
+
+ dump_printf("\n%#Lx [%#x]: event: %d\n",
+ offset + head, event->header.size, event->header.type);
+
+ if (size == 0 ||
+ perf_session__process_event(self, event, ops, offset, head) < 0) {
+ dump_printf("%#Lx [%#x]: skipping unknown header type: %d\n",
+ offset + head, event->header.size,
+ event->header.type);
+ /*
+ * assume we lost track of the stream, check alignment, and
+ * increment a single u64 in the hope to catch on again 'soon'.
+ */
+ if (unlikely(head & 7))
+ head &= ~7ULL;
+
+ size = 8;
+ }
+
+ head += size;
+
+ if (offset + head >= data_offset + data_size)
+ goto done;
+
+ if (offset + head < file_size)
+ goto more;
+done:
+ err = 0;
+out_err:
+ return err;
+}
+
+int perf_session__process_events(struct perf_session *self,
+ struct perf_event_ops *ops)
+{
+ int err;
+
+ if (perf_session__register_idle_thread(self) == NULL)
+ return -ENOMEM;
+
+ if (!symbol_conf.full_paths) {
+ char bf[PATH_MAX];
+
+ if (getcwd(bf, sizeof(bf)) == NULL) {
+ err = -errno;
+out_getcwd_err:
+ pr_err("failed to get the current directory\n");
+ goto out_err;
+ }
+ self->cwd = strdup(bf);
+ if (self->cwd == NULL) {
+ err = -ENOMEM;
+ goto out_getcwd_err;
+ }
+ self->cwdlen = strlen(self->cwd);
+ }
+
+ err = __perf_session__process_events(self, self->header.data_offset,
+ self->header.data_size,
+ self->size, ops);
+out_err:
+ return err;
+}
+
+bool perf_session__has_traces(struct perf_session *self, const char *msg)
+{
+ if (!(self->sample_type & PERF_SAMPLE_RAW)) {
+ pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
+ return false;
+ }
+
+ return true;
+}
+
+int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
+ const char *symbol_name,
+ u64 addr)
+{
+ char *bracket;
+ enum map_type i;
+
+ self->ref_reloc_sym.name = strdup(symbol_name);
+ if (self->ref_reloc_sym.name == NULL)
+ return -ENOMEM;
+
+ bracket = strchr(self->ref_reloc_sym.name, ']');
+ if (bracket)
+ *bracket = '\0';
+
+ self->ref_reloc_sym.addr = addr;
+
+ for (i = 0; i < MAP__NR_TYPES; ++i) {
+ struct kmap *kmap = map__kmap(self->vmlinux_maps[i]);
+ kmap->ref_reloc_sym = &self->ref_reloc_sym;
+ }
+
+ return 0;
+}
+
+static u64 map__reloc_map_ip(struct map *map, u64 ip)
+{
+ return ip + (s64)map->pgoff;
+}
+
+static u64 map__reloc_unmap_ip(struct map *map, u64 ip)
+{
+ return ip - (s64)map->pgoff;
+}
+
+void map__reloc_vmlinux(struct map *self)
+{
+ struct kmap *kmap = map__kmap(self);
+ s64 reloc;
+
+ if (!kmap->ref_reloc_sym || !kmap->ref_reloc_sym->unrelocated_addr)
+ return;
+
+ reloc = (kmap->ref_reloc_sym->unrelocated_addr -
+ kmap->ref_reloc_sym->addr);
+
+ if (!reloc)
+ return;
+
+ self->map_ip = map__reloc_map_ip;
+ self->unmap_ip = map__reloc_unmap_ip;
+ self->pgoff = reloc;
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 32eaa1bada06..31950fcd8a4d 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -3,13 +3,13 @@
#include "event.h"
#include "header.h"
+#include "symbol.h"
#include "thread.h"
#include <linux/rbtree.h>
#include "../../../include/linux/perf_event.h"
struct ip_callchain;
struct thread;
-struct symbol;
struct perf_session {
struct perf_header header;
@@ -18,10 +18,13 @@ struct perf_session {
struct map_groups kmaps;
struct rb_root threads;
struct thread *last_match;
+ struct map *vmlinux_maps[MAP__NR_TYPES];
struct events_stats events_stats;
unsigned long event_total[PERF_RECORD_MAX];
+ unsigned long unknown_events;
struct rb_root hists;
u64 sample_type;
+ struct ref_reloc_sym ref_reloc_sym;
int fd;
int cwdlen;
char *cwd;
@@ -31,23 +34,25 @@ struct perf_session {
typedef int (*event_op)(event_t *self, struct perf_session *session);
struct perf_event_ops {
- event_op process_sample_event;
- event_op process_mmap_event;
- event_op process_comm_event;
- event_op process_fork_event;
- event_op process_exit_event;
- event_op process_lost_event;
- event_op process_read_event;
- event_op process_throttle_event;
- event_op process_unthrottle_event;
- int (*sample_type_check)(struct perf_session *session);
- unsigned long total_unknown;
- bool full_paths;
+ event_op sample,
+ mmap,
+ comm,
+ fork,
+ exit,
+ lost,
+ read,
+ throttle,
+ unthrottle;
};
struct perf_session *perf_session__new(const char *filename, int mode, bool force);
void perf_session__delete(struct perf_session *self);
+void perf_event_header__bswap(struct perf_event_header *self);
+
+int __perf_session__process_events(struct perf_session *self,
+ u64 data_offset, u64 data_size, u64 size,
+ struct perf_event_ops *ops);
int perf_session__process_events(struct perf_session *self,
struct perf_event_ops *event_ops);
@@ -56,6 +61,28 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self,
struct ip_callchain *chain,
struct symbol **parent);
-int perf_header__read_build_ids(int input, u64 offset, u64 file_size);
+bool perf_session__has_traces(struct perf_session *self, const char *msg);
+
+int perf_header__read_build_ids(struct perf_header *self, int input,
+ u64 offset, u64 file_size);
+
+int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
+ const char *symbol_name,
+ u64 addr);
+
+void mem_bswap_64(void *src, int byte_size);
+
+static inline int __perf_session__create_kernel_maps(struct perf_session *self,
+ struct dso *kernel)
+{
+ return __map_groups__create_kernel_maps(&self->kmaps,
+ self->vmlinux_maps, kernel);
+}
+static inline struct map *
+ perf_session__new_module_map(struct perf_session *self,
+ u64 start, const char *filename)
+{
+ return map_groups__new_module(&self->kmaps, start, filename);
+}
#endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 5352d7dccc61..c397d4f6f748 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -227,16 +227,73 @@ fail:
return NULL;
}
-/* Glob expression pattern matching */
+/* Character class matching */
+static bool __match_charclass(const char *pat, char c, const char **npat)
+{
+ bool complement = false, ret = true;
+
+ if (*pat == '!') {
+ complement = true;
+ pat++;
+ }
+ if (*pat++ == c) /* First character is special */
+ goto end;
+
+ while (*pat && *pat != ']') { /* Matching */
+ if (*pat == '-' && *(pat + 1) != ']') { /* Range */
+ if (*(pat - 1) <= c && c <= *(pat + 1))
+ goto end;
+ if (*(pat - 1) > *(pat + 1))
+ goto error;
+ pat += 2;
+ } else if (*pat++ == c)
+ goto end;
+ }
+ if (!*pat)
+ goto error;
+ ret = false;
+
+end:
+ while (*pat && *pat != ']') /* Searching closing */
+ pat++;
+ if (!*pat)
+ goto error;
+ *npat = pat + 1;
+ return complement ? !ret : ret;
+
+error:
+ return false;
+}
+
+/**
+ * strglobmatch - glob expression pattern matching
+ * @str: the target string to match
+ * @pat: the pattern string to match
+ *
+ * This returns true if the @str matches @pat. @pat can includes wildcards
+ * ('*','?') and character classes ([CHARS], complementation and ranges are
+ * also supported). Also, this supports escape character ('\') to use special
+ * characters as normal character.
+ *
+ * Note: if @pat syntax is broken, this always returns false.
+ */
bool strglobmatch(const char *str, const char *pat)
{
while (*str && *pat && *pat != '*') {
- if (*pat == '?') {
+ if (*pat == '?') { /* Matches any single character */
str++;
pat++;
- } else
- if (*str++ != *pat++)
+ continue;
+ } else if (*pat == '[') /* Character classes/Ranges */
+ if (__match_charclass(pat + 1, *str, &pat)) {
+ str++;
+ continue;
+ } else
return false;
+ else if (*pat == '\\') /* Escaped char match as normal char */
+ pat++;
+ if (*str++ != *pat++)
+ return false;
}
/* Check wild card */
if (*pat == '*') {
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ab92763edb03..323c0aea0a91 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1,6 +1,5 @@
#include "util.h"
#include "../perf.h"
-#include "session.h"
#include "sort.h"
#include "string.h"
#include "symbol.h"
@@ -22,6 +21,7 @@
enum dso_origin {
DSO__ORIG_KERNEL = 0,
DSO__ORIG_JAVA_JIT,
+ DSO__ORIG_BUILD_ID_CACHE,
DSO__ORIG_FEDORA,
DSO__ORIG_UBUNTU,
DSO__ORIG_BUILDID,
@@ -33,7 +33,7 @@ enum dso_origin {
static void dsos__add(struct list_head *head, struct dso *dso);
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
static int dso__load_kernel_sym(struct dso *self, struct map *map,
- struct perf_session *session, symbol_filter_t filter);
+ symbol_filter_t filter);
static int vmlinux_path__nr_entries;
static char **vmlinux_path;
@@ -53,17 +53,12 @@ bool dso__sorted_by_name(const struct dso *self, enum map_type type)
return self->sorted_by_name & (1 << type);
}
-static void dso__set_loaded(struct dso *self, enum map_type type)
-{
- self->loaded |= (1 << type);
-}
-
static void dso__set_sorted_by_name(struct dso *self, enum map_type type)
{
self->sorted_by_name |= (1 << type);
}
-static bool symbol_type__is_a(char symbol_type, enum map_type map_type)
+bool symbol_type__is_a(char symbol_type, enum map_type map_type)
{
switch (map_type) {
case MAP__FUNCTION:
@@ -142,14 +137,14 @@ static struct symbol *symbol__new(u64 start, u64 len, const char *name)
self->start = start;
self->end = len ? start + len - 1 : start;
- pr_debug3("%s: %s %#Lx-%#Lx\n", __func__, name, start, self->end);
+ pr_debug4("%s: %s %#Lx-%#Lx\n", __func__, name, start, self->end);
memcpy(self->name, name, namelen);
return self;
}
-static void symbol__delete(struct symbol *self)
+void symbol__delete(struct symbol *self)
{
free(((void *)self) - symbol_conf.priv_size);
}
@@ -160,7 +155,7 @@ static size_t symbol__fprintf(struct symbol *self, FILE *fp)
self->start, self->end, self->name);
}
-static void dso__set_long_name(struct dso *self, char *name)
+void dso__set_long_name(struct dso *self, char *name)
{
if (name == NULL)
return;
@@ -175,7 +170,7 @@ static void dso__set_basename(struct dso *self)
struct dso *dso__new(const char *name)
{
- struct dso *self = malloc(sizeof(*self) + strlen(name) + 1);
+ struct dso *self = zalloc(sizeof(*self) + strlen(name) + 1);
if (self != NULL) {
int i;
@@ -344,10 +339,10 @@ void dso__sort_by_name(struct dso *self, enum map_type type)
&self->symbols[type]);
}
-int build_id__sprintf(u8 *self, int len, char *bf)
+int build_id__sprintf(const u8 *self, int len, char *bf)
{
char *bid = bf;
- u8 *raw = self;
+ const u8 *raw = self;
int i;
for (i = 0; i < len; ++i) {
@@ -372,6 +367,10 @@ size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp)
struct rb_node *nd;
size_t ret = fprintf(fp, "dso: %s (", self->short_name);
+ if (self->short_name != self->long_name)
+ ret += fprintf(fp, "%s, ", self->long_name);
+ ret += fprintf(fp, "%s, %sloaded, ", map_type__name[type],
+ self->loaded ? "" : "NOT ");
ret += dso__fprintf_buildid(self, fp);
ret += fprintf(fp, ")\n");
for (nd = rb_first(&self->symbols[type]); nd; nd = rb_next(nd)) {
@@ -382,24 +381,20 @@ size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp)
return ret;
}
-/*
- * Loads the function entries in /proc/kallsyms into kernel_map->dso,
- * so that we can in the next step set the symbol ->end address and then
- * call kernel_maps__split_kallsyms.
- */
-static int dso__load_all_kallsyms(struct dso *self, struct map *map)
+int kallsyms__parse(const char *filename, void *arg,
+ int (*process_symbol)(void *arg, const char *name,
+ char type, u64 start))
{
char *line = NULL;
size_t n;
- struct rb_root *root = &self->symbols[map->type];
- FILE *file = fopen("/proc/kallsyms", "r");
+ int err = 0;
+ FILE *file = fopen(filename, "r");
if (file == NULL)
goto out_failure;
while (!feof(file)) {
u64 start;
- struct symbol *sym;
int line_len, len;
char symbol_type;
char *symbol_name;
@@ -420,43 +415,72 @@ static int dso__load_all_kallsyms(struct dso *self, struct map *map)
continue;
symbol_type = toupper(line[len]);
- if (!symbol_type__is_a(symbol_type, map->type))
- continue;
-
symbol_name = line + len + 2;
- /*
- * Will fix up the end later, when we have all symbols sorted.
- */
- sym = symbol__new(start, 0, symbol_name);
- if (sym == NULL)
- goto out_delete_line;
- /*
- * We will pass the symbols to the filter later, in
- * map__split_kallsyms, when we have split the maps per module
- */
- symbols__insert(root, sym);
+ err = process_symbol(arg, symbol_name, symbol_type, start);
+ if (err)
+ break;
}
free(line);
fclose(file);
+ return err;
- return 0;
-
-out_delete_line:
- free(line);
out_failure:
return -1;
}
+struct process_kallsyms_args {
+ struct map *map;
+ struct dso *dso;
+};
+
+static int map__process_kallsym_symbol(void *arg, const char *name,
+ char type, u64 start)
+{
+ struct symbol *sym;
+ struct process_kallsyms_args *a = arg;
+ struct rb_root *root = &a->dso->symbols[a->map->type];
+
+ if (!symbol_type__is_a(type, a->map->type))
+ return 0;
+
+ /*
+ * Will fix up the end later, when we have all symbols sorted.
+ */
+ sym = symbol__new(start, 0, name);
+
+ if (sym == NULL)
+ return -ENOMEM;
+ /*
+ * We will pass the symbols to the filter later, in
+ * map__split_kallsyms, when we have split the maps per module
+ */
+ symbols__insert(root, sym);
+ return 0;
+}
+
+/*
+ * Loads the function entries in /proc/kallsyms into kernel_map->dso,
+ * so that we can in the next step set the symbol ->end address and then
+ * call kernel_maps__split_kallsyms.
+ */
+static int dso__load_all_kallsyms(struct dso *self, const char *filename,
+ struct map *map)
+{
+ struct process_kallsyms_args args = { .map = map, .dso = self, };
+ return kallsyms__parse(filename, &args, map__process_kallsym_symbol);
+}
+
/*
* Split the symbols into maps, making sure there are no overlaps, i.e. the
* kernel range is broken in several maps, named [kernel].N, as we don't have
* the original ELF section names vmlinux have.
*/
static int dso__split_kallsyms(struct dso *self, struct map *map,
- struct perf_session *session, symbol_filter_t filter)
+ symbol_filter_t filter)
{
+ struct map_groups *kmaps = map__kmap(map)->kmaps;
struct map *curr_map = map;
struct symbol *pos;
int count = 0;
@@ -477,13 +501,17 @@ static int dso__split_kallsyms(struct dso *self, struct map *map,
*module++ = '\0';
- if (strcmp(self->name, module)) {
- curr_map = map_groups__find_by_name(&session->kmaps, map->type, module);
+ if (strcmp(curr_map->dso->short_name, module)) {
+ curr_map = map_groups__find_by_name(kmaps, map->type, module);
if (curr_map == NULL) {
pr_debug("/proc/{kallsyms,modules} "
- "inconsistency!\n");
+ "inconsistency while looking "
+ "for \"%s\" module!\n", module);
return -1;
}
+
+ if (curr_map->dso->loaded)
+ goto discard_symbol;
}
/*
* So that we look just like we get from .ko files,
@@ -503,13 +531,13 @@ static int dso__split_kallsyms(struct dso *self, struct map *map,
return -1;
curr_map = map__new2(pos->start, dso, map->type);
- if (map == NULL) {
+ if (curr_map == NULL) {
dso__delete(dso);
return -1;
}
curr_map->map_ip = curr_map->unmap_ip = identity__map_ip;
- map_groups__insert(&session->kmaps, curr_map);
+ map_groups__insert(kmaps, curr_map);
++kernel_range;
}
@@ -528,17 +556,16 @@ discard_symbol: rb_erase(&pos->rb_node, root);
return count;
}
-
-static int dso__load_kallsyms(struct dso *self, struct map *map,
- struct perf_session *session, symbol_filter_t filter)
+int dso__load_kallsyms(struct dso *self, const char *filename,
+ struct map *map, symbol_filter_t filter)
{
- if (dso__load_all_kallsyms(self, map) < 0)
+ if (dso__load_all_kallsyms(self, filename, map) < 0)
return -1;
symbols__fixup_end(&self->symbols[map->type]);
self->origin = DSO__ORIG_KERNEL;
- return dso__split_kallsyms(self, map, session, filter);
+ return dso__split_kallsyms(self, map, filter);
}
static int dso__load_perf_map(struct dso *self, struct map *map,
@@ -864,10 +891,10 @@ static bool elf_sec__is_a(GElf_Shdr *self, Elf_Data *secstrs, enum map_type type
}
}
-static int dso__load_sym(struct dso *self, struct map *map,
- struct perf_session *session, const char *name, int fd,
- symbol_filter_t filter, int kernel, int kmodule)
+static int dso__load_sym(struct dso *self, struct map *map, const char *name,
+ int fd, symbol_filter_t filter, int kmodule)
{
+ struct kmap *kmap = self->kernel ? map__kmap(map) : NULL;
struct map *curr_map = map;
struct dso *curr_dso = self;
size_t dso_name_len = strlen(self->short_name);
@@ -924,7 +951,7 @@ static int dso__load_sym(struct dso *self, struct map *map,
nr_syms = shdr.sh_size / shdr.sh_entsize;
memset(&sym, 0, sizeof(sym));
- if (!kernel) {
+ if (!self->kernel) {
self->adjust_symbols = (ehdr.e_type == ET_EXEC ||
elf_section_by_name(elf, &ehdr, &shdr,
".gnu.prelink_undo",
@@ -933,11 +960,15 @@ static int dso__load_sym(struct dso *self, struct map *map,
elf_symtab__for_each_symbol(syms, nr_syms, idx, sym) {
struct symbol *f;
- const char *elf_name;
+ const char *elf_name = elf_sym__name(&sym, symstrs);
char *demangled = NULL;
int is_label = elf_sym__is_label(&sym);
const char *section_name;
+ if (kmap && kmap->ref_reloc_sym && kmap->ref_reloc_sym->name &&
+ strcmp(elf_name, kmap->ref_reloc_sym->name) == 0)
+ kmap->ref_reloc_sym->unrelocated_addr = sym.st_value;
+
if (!is_label && !elf_sym__is_a(&sym, map->type))
continue;
@@ -950,10 +981,9 @@ static int dso__load_sym(struct dso *self, struct map *map,
if (is_label && !elf_sec__is_a(&shdr, secstrs, map->type))
continue;
- elf_name = elf_sym__name(&sym, symstrs);
section_name = elf_sec__name(&shdr, secstrs);
- if (kernel || kmodule) {
+ if (self->kernel || kmodule) {
char dso_name[PATH_MAX];
if (strcmp(section_name,
@@ -969,7 +999,7 @@ static int dso__load_sym(struct dso *self, struct map *map,
snprintf(dso_name, sizeof(dso_name),
"%s%s", self->short_name, section_name);
- curr_map = map_groups__find_by_name(&session->kmaps, map->type, dso_name);
+ curr_map = map_groups__find_by_name(kmap->kmaps, map->type, dso_name);
if (curr_map == NULL) {
u64 start = sym.st_value;
@@ -980,7 +1010,7 @@ static int dso__load_sym(struct dso *self, struct map *map,
if (curr_dso == NULL)
goto out_elf_end;
curr_map = map__new2(start, curr_dso,
- MAP__FUNCTION);
+ map->type);
if (curr_map == NULL) {
dso__delete(curr_dso);
goto out_elf_end;
@@ -988,8 +1018,9 @@ static int dso__load_sym(struct dso *self, struct map *map,
curr_map->map_ip = identity__map_ip;
curr_map->unmap_ip = identity__map_ip;
curr_dso->origin = DSO__ORIG_KERNEL;
- map_groups__insert(&session->kmaps, curr_map);
+ map_groups__insert(kmap->kmaps, curr_map);
dsos__add(&dsos__kernel, curr_dso);
+ dso__set_loaded(curr_dso, map->type);
} else
curr_dso = curr_map->dso;
@@ -997,9 +1028,10 @@ static int dso__load_sym(struct dso *self, struct map *map,
}
if (curr_dso->adjust_symbols) {
- pr_debug2("adjusting symbol: st_value: %Lx sh_addr: "
- "%Lx sh_offset: %Lx\n", (u64)sym.st_value,
- (u64)shdr.sh_addr, (u64)shdr.sh_offset);
+ pr_debug4("%s: adjusting symbol: st_value: %#Lx "
+ "sh_addr: %#Lx sh_offset: %#Lx\n", __func__,
+ (u64)sym.st_value, (u64)shdr.sh_addr,
+ (u64)shdr.sh_offset);
sym.st_value -= shdr.sh_addr - shdr.sh_offset;
}
/*
@@ -1027,8 +1059,16 @@ new_symbol:
/*
* For misannotated, zeroed, ASM function sizes.
*/
- if (nr > 0)
+ if (nr > 0) {
symbols__fixup_end(&self->symbols[map->type]);
+ if (kmap) {
+ /*
+ * We need to fixup this here too because we create new
+ * maps here, for things like vsyscall sections.
+ */
+ __map_groups__fixup_end(kmap->kmaps, map->type);
+ }
+ }
err = nr;
out_elf_end:
elf_end(elf);
@@ -1041,25 +1081,28 @@ static bool dso__build_id_equal(const struct dso *self, u8 *build_id)
return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0;
}
-static bool __dsos__read_build_ids(struct list_head *head)
+static bool __dsos__read_build_ids(struct list_head *head, bool with_hits)
{
bool have_build_id = false;
struct dso *pos;
- list_for_each_entry(pos, head, node)
+ list_for_each_entry(pos, head, node) {
+ if (with_hits && !pos->hit)
+ continue;
if (filename__read_build_id(pos->long_name, pos->build_id,
sizeof(pos->build_id)) > 0) {
have_build_id = true;
pos->has_build_id = true;
}
+ }
return have_build_id;
}
-bool dsos__read_build_ids(void)
+bool dsos__read_build_ids(bool with_hits)
{
- bool kbuildids = __dsos__read_build_ids(&dsos__kernel),
- ubuildids = __dsos__read_build_ids(&dsos__user);
+ bool kbuildids = __dsos__read_build_ids(&dsos__kernel, with_hits),
+ ubuildids = __dsos__read_build_ids(&dsos__user, with_hits);
return kbuildids || ubuildids;
}
@@ -1191,6 +1234,7 @@ char dso__symtab_origin(const struct dso *self)
static const char origin[] = {
[DSO__ORIG_KERNEL] = 'k',
[DSO__ORIG_JAVA_JIT] = 'j',
+ [DSO__ORIG_BUILD_ID_CACHE] = 'B',
[DSO__ORIG_FEDORA] = 'f',
[DSO__ORIG_UBUNTU] = 'u',
[DSO__ORIG_BUILDID] = 'b',
@@ -1203,19 +1247,19 @@ char dso__symtab_origin(const struct dso *self)
return origin[self->origin];
}
-int dso__load(struct dso *self, struct map *map, struct perf_session *session,
- symbol_filter_t filter)
+int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
{
int size = PATH_MAX;
char *name;
u8 build_id[BUILD_ID_SIZE];
+ char build_id_hex[BUILD_ID_SIZE * 2 + 1];
int ret = -1;
int fd;
dso__set_loaded(self, map->type);
if (self->kernel)
- return dso__load_kernel_sym(self, map, session, filter);
+ return dso__load_kernel_sym(self, map, filter);
name = malloc(size);
if (!name)
@@ -1230,8 +1274,16 @@ int dso__load(struct dso *self, struct map *map, struct perf_session *session,
return ret;
}
- self->origin = DSO__ORIG_FEDORA - 1;
+ self->origin = DSO__ORIG_BUILD_ID_CACHE;
+ if (self->has_build_id) {
+ build_id__sprintf(self->build_id, sizeof(self->build_id),
+ build_id_hex);
+ snprintf(name, size, "%s/%s/.build-id/%.2s/%s",
+ getenv("HOME"), DEBUG_CACHE_DIR,
+ build_id_hex, build_id_hex + 2);
+ goto open_file;
+ }
more:
do {
self->origin++;
@@ -1247,8 +1299,6 @@ more:
case DSO__ORIG_BUILDID:
if (filename__read_build_id(self->long_name, build_id,
sizeof(build_id))) {
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
-
build_id__sprintf(build_id, sizeof(build_id),
build_id_hex);
snprintf(name, size,
@@ -1276,11 +1326,11 @@ compare_build_id:
if (!dso__build_id_equal(self, build_id))
goto more;
}
-
+open_file:
fd = open(name, O_RDONLY);
} while (fd < 0);
- ret = dso__load_sym(self, map, NULL, name, fd, filter, 0, 0);
+ ret = dso__load_sym(self, map, name, fd, filter, 0);
close(fd);
/*
@@ -1309,14 +1359,34 @@ struct map *map_groups__find_by_name(struct map_groups *self,
for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) {
struct map *map = rb_entry(nd, struct map, rb_node);
- if (map->dso && strcmp(map->dso->name, name) == 0)
+ if (map->dso && strcmp(map->dso->short_name, name) == 0)
return map;
}
return NULL;
}
-static int perf_session__set_modules_path_dir(struct perf_session *self, char *dirname)
+static int dso__kernel_module_get_build_id(struct dso *self)
+{
+ char filename[PATH_MAX];
+ /*
+ * kernel module short names are of the form "[module]" and
+ * we need just "module" here.
+ */
+ const char *name = self->short_name + 1;
+
+ snprintf(filename, sizeof(filename),
+ "/sys/module/%.*s/notes/.note.gnu.build-id",
+ (int)strlen(name - 1), name);
+
+ if (sysfs__read_build_id(filename, self->build_id,
+ sizeof(self->build_id)) == 0)
+ self->has_build_id = true;
+
+ return 0;
+}
+
+static int map_groups__set_modules_path_dir(struct map_groups *self, char *dirname)
{
struct dirent *dent;
DIR *dir = opendir(dirname);
@@ -1336,7 +1406,7 @@ static int perf_session__set_modules_path_dir(struct perf_session *self, char *d
snprintf(path, sizeof(path), "%s/%s",
dirname, dent->d_name);
- if (perf_session__set_modules_path_dir(self, path) < 0)
+ if (map_groups__set_modules_path_dir(self, path) < 0)
goto failure;
} else {
char *dot = strrchr(dent->d_name, '.'),
@@ -1350,7 +1420,7 @@ static int perf_session__set_modules_path_dir(struct perf_session *self, char *d
(int)(dot - dent->d_name), dent->d_name);
strxfrchar(dso_name, '-', '_');
- map = map_groups__find_by_name(&self->kmaps, MAP__FUNCTION, dso_name);
+ map = map_groups__find_by_name(self, MAP__FUNCTION, dso_name);
if (map == NULL)
continue;
@@ -1361,6 +1431,7 @@ static int perf_session__set_modules_path_dir(struct perf_session *self, char *d
if (long_name == NULL)
goto failure;
dso__set_long_name(map->dso, long_name);
+ dso__kernel_module_get_build_id(map->dso);
}
}
@@ -1370,7 +1441,7 @@ failure:
return -1;
}
-static int perf_session__set_modules_path(struct perf_session *self)
+static int map_groups__set_modules_path(struct map_groups *self)
{
struct utsname uts;
char modules_path[PATH_MAX];
@@ -1381,7 +1452,7 @@ static int perf_session__set_modules_path(struct perf_session *self)
snprintf(modules_path, sizeof(modules_path), "/lib/modules/%s/kernel",
uts.release);
- return perf_session__set_modules_path_dir(self, modules_path);
+ return map_groups__set_modules_path_dir(self, modules_path);
}
/*
@@ -1391,8 +1462,8 @@ static int perf_session__set_modules_path(struct perf_session *self)
*/
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
{
- struct map *self = malloc(sizeof(*self));
-
+ struct map *self = zalloc(sizeof(*self) +
+ (dso->kernel ? sizeof(struct kmap) : 0));
if (self != NULL) {
/*
* ->end will be filled after we load all the symbols
@@ -1403,7 +1474,25 @@ static struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
return self;
}
-static int perf_session__create_module_maps(struct perf_session *self)
+struct map *map_groups__new_module(struct map_groups *self, u64 start,
+ const char *filename)
+{
+ struct map *map;
+ struct dso *dso = __dsos__findnew(&dsos__kernel, filename);
+
+ if (dso == NULL)
+ return NULL;
+
+ map = map__new2(start, dso, MAP__FUNCTION);
+ if (map == NULL)
+ return NULL;
+
+ dso->origin = DSO__ORIG_KMODULE;
+ map_groups__insert(self, map);
+ return map;
+}
+
+static int map_groups__create_modules(struct map_groups *self)
{
char *line = NULL;
size_t n;
@@ -1416,7 +1505,6 @@ static int perf_session__create_module_maps(struct perf_session *self)
while (!feof(file)) {
char name[PATH_MAX];
u64 start;
- struct dso *dso;
char *sep;
int line_len;
@@ -1442,32 +1530,16 @@ static int perf_session__create_module_maps(struct perf_session *self)
*sep = '\0';
snprintf(name, sizeof(name), "[%s]", line);
- dso = dso__new(name);
-
- if (dso == NULL)
- goto out_delete_line;
-
- map = map__new2(start, dso, MAP__FUNCTION);
- if (map == NULL) {
- dso__delete(dso);
+ map = map_groups__new_module(self, start, name);
+ if (map == NULL)
goto out_delete_line;
- }
-
- snprintf(name, sizeof(name),
- "/sys/module/%s/notes/.note.gnu.build-id", line);
- if (sysfs__read_build_id(name, dso->build_id,
- sizeof(dso->build_id)) == 0)
- dso->has_build_id = true;
-
- dso->origin = DSO__ORIG_KMODULE;
- map_groups__insert(&self->kmaps, map);
- dsos__add(&dsos__kernel, dso);
+ dso__kernel_module_get_build_id(map->dso);
}
free(line);
fclose(file);
- return perf_session__set_modules_path(self);
+ return map_groups__set_modules_path(self);
out_delete_line:
free(line);
@@ -1476,7 +1548,6 @@ out_failure:
}
static int dso__load_vmlinux(struct dso *self, struct map *map,
- struct perf_session *session,
const char *vmlinux, symbol_filter_t filter)
{
int err = -1, fd;
@@ -1510,51 +1581,124 @@ static int dso__load_vmlinux(struct dso *self, struct map *map,
return -1;
dso__set_loaded(self, map->type);
- err = dso__load_sym(self, map, session, self->long_name, fd, filter, 1, 0);
+ err = dso__load_sym(self, map, vmlinux, fd, filter, 0);
close(fd);
+ if (err > 0)
+ pr_debug("Using %s for symbols\n", vmlinux);
+
+ return err;
+}
+
+int dso__load_vmlinux_path(struct dso *self, struct map *map,
+ symbol_filter_t filter)
+{
+ int i, err = 0;
+
+ pr_debug("Looking at the vmlinux_path (%d entries long)\n",
+ vmlinux_path__nr_entries);
+
+ for (i = 0; i < vmlinux_path__nr_entries; ++i) {
+ err = dso__load_vmlinux(self, map, vmlinux_path[i], filter);
+ if (err > 0) {
+ dso__set_long_name(self, strdup(vmlinux_path[i]));
+ break;
+ }
+ }
+
return err;
}
static int dso__load_kernel_sym(struct dso *self, struct map *map,
- struct perf_session *session, symbol_filter_t filter)
+ symbol_filter_t filter)
{
int err;
- bool is_kallsyms;
+ const char *kallsyms_filename = NULL;
+ char *kallsyms_allocated_filename = NULL;
+ /*
+ * Step 1: if the user specified a vmlinux filename, use it and only
+ * it, reporting errors to the user if it cannot be used.
+ *
+ * For instance, try to analyse an ARM perf.data file _without_ a
+ * build-id, or if the user specifies the wrong path to the right
+ * vmlinux file, obviously we can't fallback to another vmlinux (a
+ * x86_86 one, on the machine where analysis is being performed, say),
+ * or worse, /proc/kallsyms.
+ *
+ * If the specified file _has_ a build-id and there is a build-id
+ * section in the perf.data file, we will still do the expected
+ * validation in dso__load_vmlinux and will bail out if they don't
+ * match.
+ */
+ if (symbol_conf.vmlinux_name != NULL) {
+ err = dso__load_vmlinux(self, map,
+ symbol_conf.vmlinux_name, filter);
+ goto out_try_fixup;
+ }
if (vmlinux_path != NULL) {
- int i;
- pr_debug("Looking at the vmlinux_path (%d entries long)\n",
- vmlinux_path__nr_entries);
- for (i = 0; i < vmlinux_path__nr_entries; ++i) {
- err = dso__load_vmlinux(self, map, session,
- vmlinux_path[i], filter);
- if (err > 0) {
- pr_debug("Using %s for symbols\n",
- vmlinux_path[i]);
- dso__set_long_name(self,
- strdup(vmlinux_path[i]));
- goto out_fixup;
+ err = dso__load_vmlinux_path(self, map, filter);
+ if (err > 0)
+ goto out_fixup;
+ }
+
+ /*
+ * Say the kernel DSO was created when processing the build-id header table,
+ * we have a build-id, so check if it is the same as the running kernel,
+ * using it if it is.
+ */
+ if (self->has_build_id) {
+ u8 kallsyms_build_id[BUILD_ID_SIZE];
+ char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+
+ if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
+ sizeof(kallsyms_build_id)) == 0) {
+ if (dso__build_id_equal(self, kallsyms_build_id)) {
+ kallsyms_filename = "/proc/kallsyms";
+ goto do_kallsyms;
}
}
- }
+ /*
+ * Now look if we have it on the build-id cache in
+ * $HOME/.debug/[kernel.kallsyms].
+ */
+ build_id__sprintf(self->build_id, sizeof(self->build_id),
+ sbuild_id);
- is_kallsyms = self->long_name[0] == '[';
- if (is_kallsyms)
- goto do_kallsyms;
+ if (asprintf(&kallsyms_allocated_filename,
+ "%s/.debug/[kernel.kallsyms]/%s",
+ getenv("HOME"), sbuild_id) == -1) {
+ pr_err("Not enough memory for kallsyms file lookup\n");
+ return -1;
+ }
- err = dso__load_vmlinux(self, map, session, self->long_name, filter);
- if (err <= 0) {
- pr_info("The file %s cannot be used, "
- "trying to use /proc/kallsyms...", self->long_name);
-do_kallsyms:
- err = dso__load_kallsyms(self, map, session, filter);
- if (err > 0 && !is_kallsyms)
- dso__set_long_name(self, strdup("[kernel.kallsyms]"));
+ kallsyms_filename = kallsyms_allocated_filename;
+
+ if (access(kallsyms_filename, F_OK)) {
+ pr_err("No kallsyms or vmlinux with build-id %s "
+ "was found\n", sbuild_id);
+ free(kallsyms_allocated_filename);
+ return -1;
+ }
+ } else {
+ /*
+ * Last resort, if we don't have a build-id and couldn't find
+ * any vmlinux file, try the running kernel kallsyms table.
+ */
+ kallsyms_filename = "/proc/kallsyms";
}
+do_kallsyms:
+ err = dso__load_kallsyms(self, kallsyms_filename, map, filter);
+ if (err > 0)
+ pr_debug("Using %s for symbols\n", kallsyms_filename);
+ free(kallsyms_allocated_filename);
+
+out_try_fixup:
if (err > 0) {
out_fixup:
+ if (kallsyms_filename != NULL)
+ dso__set_long_name(self, strdup("[kernel.kallsyms]"));
map__fixup_start(map);
map__fixup_end(map);
}
@@ -1564,7 +1708,6 @@ out_fixup:
LIST_HEAD(dsos__user);
LIST_HEAD(dsos__kernel);
-struct dso *vdso;
static void dsos__add(struct list_head *head, struct dso *dso)
{
@@ -1576,19 +1719,19 @@ static struct dso *dsos__find(struct list_head *head, const char *name)
struct dso *pos;
list_for_each_entry(pos, head, node)
- if (strcmp(pos->name, name) == 0)
+ if (strcmp(pos->long_name, name) == 0)
return pos;
return NULL;
}
-struct dso *dsos__findnew(const char *name)
+struct dso *__dsos__findnew(struct list_head *head, const char *name)
{
- struct dso *dso = dsos__find(&dsos__user, name);
+ struct dso *dso = dsos__find(head, name);
if (!dso) {
dso = dso__new(name);
if (dso != NULL) {
- dsos__add(&dsos__user, dso);
+ dsos__add(head, dso);
dso__set_basename(dso);
}
}
@@ -1613,75 +1756,78 @@ void dsos__fprintf(FILE *fp)
__dsos__fprintf(&dsos__user, fp);
}
-static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp)
+static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
+ bool with_hits)
{
struct dso *pos;
size_t ret = 0;
list_for_each_entry(pos, head, node) {
+ if (with_hits && !pos->hit)
+ continue;
ret += dso__fprintf_buildid(pos, fp);
ret += fprintf(fp, " %s\n", pos->long_name);
}
return ret;
}
-size_t dsos__fprintf_buildid(FILE *fp)
+size_t dsos__fprintf_buildid(FILE *fp, bool with_hits)
{
- return (__dsos__fprintf_buildid(&dsos__kernel, fp) +
- __dsos__fprintf_buildid(&dsos__user, fp));
+ return (__dsos__fprintf_buildid(&dsos__kernel, fp, with_hits) +
+ __dsos__fprintf_buildid(&dsos__user, fp, with_hits));
}
-static struct dso *dsos__create_kernel( const char *vmlinux)
+struct dso *dso__new_kernel(const char *name)
{
- struct dso *kernel = dso__new(vmlinux ?: "[kernel.kallsyms]");
+ struct dso *self = dso__new(name ?: "[kernel.kallsyms]");
- if (kernel == NULL)
- return NULL;
+ if (self != NULL) {
+ self->short_name = "[kernel]";
+ self->kernel = 1;
+ }
- kernel->short_name = "[kernel]";
- kernel->kernel = 1;
+ return self;
+}
- vdso = dso__new("[vdso]");
- if (vdso == NULL)
- goto out_delete_kernel_dso;
- dso__set_loaded(vdso, MAP__FUNCTION);
+void dso__read_running_kernel_build_id(struct dso *self)
+{
+ if (sysfs__read_build_id("/sys/kernel/notes", self->build_id,
+ sizeof(self->build_id)) == 0)
+ self->has_build_id = true;
+}
- if (sysfs__read_build_id("/sys/kernel/notes", kernel->build_id,
- sizeof(kernel->build_id)) == 0)
- kernel->has_build_id = true;
+static struct dso *dsos__create_kernel(const char *vmlinux)
+{
+ struct dso *kernel = dso__new_kernel(vmlinux);
- dsos__add(&dsos__kernel, kernel);
- dsos__add(&dsos__user, vdso);
+ if (kernel != NULL) {
+ dso__read_running_kernel_build_id(kernel);
+ dsos__add(&dsos__kernel, kernel);
+ }
return kernel;
-
-out_delete_kernel_dso:
- dso__delete(kernel);
- return NULL;
}
-static int map_groups__create_kernel_maps(struct map_groups *self, const char *vmlinux)
+int __map_groups__create_kernel_maps(struct map_groups *self,
+ struct map *vmlinux_maps[MAP__NR_TYPES],
+ struct dso *kernel)
{
- struct map *functions, *variables;
- struct dso *kernel = dsos__create_kernel(vmlinux);
+ enum map_type type;
- if (kernel == NULL)
- return -1;
+ for (type = 0; type < MAP__NR_TYPES; ++type) {
+ struct kmap *kmap;
- functions = map__new2(0, kernel, MAP__FUNCTION);
- if (functions == NULL)
- return -1;
+ vmlinux_maps[type] = map__new2(0, kernel, type);
+ if (vmlinux_maps[type] == NULL)
+ return -1;
- variables = map__new2(0, kernel, MAP__VARIABLE);
- if (variables == NULL) {
- map__delete(functions);
- return -1;
- }
+ vmlinux_maps[type]->map_ip =
+ vmlinux_maps[type]->unmap_ip = identity__map_ip;
- functions->map_ip = functions->unmap_ip =
- variables->map_ip = variables->unmap_ip = identity__map_ip;
- map_groups__insert(self, functions);
- map_groups__insert(self, variables);
+ kmap = map__kmap(vmlinux_maps[type]);
+ kmap->kmaps = self;
+ map_groups__insert(self, vmlinux_maps[type]);
+ }
return 0;
}
@@ -1791,19 +1937,22 @@ out_free_comm_list:
return -1;
}
-int perf_session__create_kernel_maps(struct perf_session *self)
+int map_groups__create_kernel_maps(struct map_groups *self,
+ struct map *vmlinux_maps[MAP__NR_TYPES])
{
- if (map_groups__create_kernel_maps(&self->kmaps,
- symbol_conf.vmlinux_name) < 0)
+ struct dso *kernel = dsos__create_kernel(symbol_conf.vmlinux_name);
+
+ if (kernel == NULL)
+ return -1;
+
+ if (__map_groups__create_kernel_maps(self, vmlinux_maps, kernel) < 0)
return -1;
- if (symbol_conf.use_modules &&
- perf_session__create_module_maps(self) < 0)
- pr_debug("Failed to load list of modules for session %s, "
- "continuing...\n", self->filename);
+ if (symbol_conf.use_modules && map_groups__create_modules(self) < 0)
+ pr_debug("Problems creating module maps, continuing anyway...\n");
/*
* Now that we have all the maps created, just set the ->end of them:
*/
- map_groups__fixup_end(&self->kmaps);
+ map_groups__fixup_end(self);
return 0;
}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 8aded2356f79..280dadd32a08 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -8,6 +8,8 @@
#include <linux/rbtree.h>
#include "event.h"
+#define DEBUG_CACHE_DIR ".debug"
+
#ifdef HAVE_CPLUS_DEMANGLE
extern char *cplus_demangle(const char *, int);
@@ -49,6 +51,8 @@ struct symbol {
char name[0];
};
+void symbol__delete(struct symbol *self);
+
struct strlist;
struct symbol_conf {
@@ -58,7 +62,8 @@ struct symbol_conf {
sort_by_name,
show_nr_samples,
use_callchain,
- exclude_other;
+ exclude_other,
+ full_paths;
const char *vmlinux_name,
*field_sep;
char *dso_list_str,
@@ -77,6 +82,12 @@ static inline void *symbol__priv(struct symbol *self)
return ((void *)self) - symbol_conf.priv_size;
}
+struct ref_reloc_sym {
+ const char *name;
+ u64 addr;
+ u64 unrelocated_addr;
+};
+
struct addr_location {
struct thread *thread;
struct map *map;
@@ -94,6 +105,7 @@ struct dso {
u8 slen_calculated:1;
u8 has_build_id:1;
u8 kernel:1;
+ u8 hit:1;
unsigned char origin;
u8 sorted_by_name;
u8 loaded;
@@ -105,37 +117,55 @@ struct dso {
};
struct dso *dso__new(const char *name);
+struct dso *dso__new_kernel(const char *name);
void dso__delete(struct dso *self);
bool dso__loaded(const struct dso *self, enum map_type type);
bool dso__sorted_by_name(const struct dso *self, enum map_type type);
+static inline void dso__set_loaded(struct dso *self, enum map_type type)
+{
+ self->loaded |= (1 << type);
+}
+
void dso__sort_by_name(struct dso *self, enum map_type type);
-struct perf_session;
+extern struct list_head dsos__user, dsos__kernel;
+
+struct dso *__dsos__findnew(struct list_head *head, const char *name);
+
+static inline struct dso *dsos__findnew(const char *name)
+{
+ return __dsos__findnew(&dsos__user, name);
+}
-struct dso *dsos__findnew(const char *name);
-int dso__load(struct dso *self, struct map *map, struct perf_session *session,
- symbol_filter_t filter);
+int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
+int dso__load_vmlinux_path(struct dso *self, struct map *map,
+ symbol_filter_t filter);
+int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map,
+ symbol_filter_t filter);
void dsos__fprintf(FILE *fp);
-size_t dsos__fprintf_buildid(FILE *fp);
+size_t dsos__fprintf_buildid(FILE *fp, bool with_hits);
size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
char dso__symtab_origin(const struct dso *self);
+void dso__set_long_name(struct dso *self, char *name);
void dso__set_build_id(struct dso *self, void *build_id);
+void dso__read_running_kernel_build_id(struct dso *self);
struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
const char *name);
int filename__read_build_id(const char *filename, void *bf, size_t size);
int sysfs__read_build_id(const char *filename, void *bf, size_t size);
-bool dsos__read_build_ids(void);
-int build_id__sprintf(u8 *self, int len, char *bf);
+bool dsos__read_build_ids(bool with_hits);
+int build_id__sprintf(const u8 *self, int len, char *bf);
+int kallsyms__parse(const char *filename, void *arg,
+ int (*process_symbol)(void *arg, const char *name,
+ char type, u64 start));
int symbol__init(void);
-int perf_session__create_kernel_maps(struct perf_session *self);
+bool symbol_type__is_a(char symbol_type, enum map_type map_type);
-extern struct list_head dsos__user, dsos__kernel;
-extern struct dso *vdso;
#endif /* __PERF_SYMBOL */
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 4a08dcf50b68..21b92162282b 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -31,12 +31,41 @@ static struct thread *thread__new(pid_t pid)
return self;
}
+static void map_groups__flush(struct map_groups *self)
+{
+ int type;
+
+ for (type = 0; type < MAP__NR_TYPES; type++) {
+ struct rb_root *root = &self->maps[type];
+ struct rb_node *next = rb_first(root);
+
+ while (next) {
+ struct map *pos = rb_entry(next, struct map, rb_node);
+ next = rb_next(&pos->rb_node);
+ rb_erase(&pos->rb_node, root);
+ /*
+ * We may have references to this map, for
+ * instance in some hist_entry instances, so
+ * just move them to a separate list.
+ */
+ list_add_tail(&pos->node, &self->removed_maps[pos->type]);
+ }
+ }
+}
+
int thread__set_comm(struct thread *self, const char *comm)
{
+ int err;
+
if (self->comm)
free(self->comm);
self->comm = strdup(comm);
- return self->comm ? 0 : -ENOMEM;
+ err = self->comm == NULL ? -ENOMEM : 0;
+ if (!err) {
+ self->comm_set = true;
+ map_groups__flush(&self->mg);
+ }
+ return err;
}
int thread__comm_len(struct thread *self)
@@ -50,11 +79,6 @@ int thread__comm_len(struct thread *self)
return self->comm_len;
}
-static const char *map_type__name[MAP__NR_TYPES] = {
- [MAP__FUNCTION] = "Functions",
- [MAP__VARIABLE] = "Variables",
-};
-
static size_t __map_groups__fprintf_maps(struct map_groups *self,
enum map_type type, FILE *fp)
{
@@ -255,11 +279,14 @@ int thread__fork(struct thread *self, struct thread *parent)
{
int i;
- if (self->comm)
- free(self->comm);
- self->comm = strdup(parent->comm);
- if (!self->comm)
- return -ENOMEM;
+ if (parent->comm_set) {
+ if (self->comm)
+ free(self->comm);
+ self->comm = strdup(parent->comm);
+ if (!self->comm)
+ return -ENOMEM;
+ self->comm_set = true;
+ }
for (i = 0; i < MAP__NR_TYPES; ++i)
if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
@@ -282,14 +309,13 @@ size_t perf_session__fprintf(struct perf_session *self, FILE *fp)
}
struct symbol *map_groups__find_symbol(struct map_groups *self,
- struct perf_session *session,
enum map_type type, u64 addr,
symbol_filter_t filter)
{
struct map *map = map_groups__find(self, type, addr);
if (map != NULL)
- return map__find_symbol(map, session, map->map_ip(map, addr), filter);
+ return map__find_symbol(map, map->map_ip(map, addr), filter);
return NULL;
}
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index c206f72c8881..0a28f39de545 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -15,6 +15,7 @@ struct thread {
struct map_groups mg;
pid_t pid;
char shortname[3];
+ bool comm_set;
char *comm;
int comm_len;
};
@@ -48,23 +49,36 @@ static inline struct map *thread__find_map(struct thread *self,
return self ? map_groups__find(&self->mg, type, addr) : NULL;
}
+void thread__find_addr_map(struct thread *self,
+ struct perf_session *session, u8 cpumode,
+ enum map_type type, u64 addr,
+ struct addr_location *al);
+
void thread__find_addr_location(struct thread *self,
struct perf_session *session, u8 cpumode,
enum map_type type, u64 addr,
struct addr_location *al,
symbol_filter_t filter);
struct symbol *map_groups__find_symbol(struct map_groups *self,
- struct perf_session *session,
enum map_type type, u64 addr,
symbol_filter_t filter);
-static inline struct symbol *
-map_groups__find_function(struct map_groups *self, struct perf_session *session,
- u64 addr, symbol_filter_t filter)
+static inline struct symbol *map_groups__find_function(struct map_groups *self,
+ u64 addr,
+ symbol_filter_t filter)
{
- return map_groups__find_symbol(self, session, MAP__FUNCTION, addr, filter);
+ return map_groups__find_symbol(self, MAP__FUNCTION, addr, filter);
}
struct map *map_groups__find_by_name(struct map_groups *self,
enum map_type type, const char *name);
+
+int __map_groups__create_kernel_maps(struct map_groups *self,
+ struct map *vmlinux_maps[MAP__NR_TYPES],
+ struct dso *kernel);
+int map_groups__create_kernel_maps(struct map_groups *self,
+ struct map *vmlinux_maps[MAP__NR_TYPES]);
+
+struct map *map_groups__new_module(struct map_groups *self, u64 start,
+ const char *filename);
#endif /* __PERF_THREAD_H */
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index cace35595530..5ea8973ad331 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -20,6 +20,7 @@
*/
#define _GNU_SOURCE
#include <dirent.h>
+#include <mntent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -37,6 +38,7 @@
#include "../perf.h"
#include "trace-event.h"
+#include "debugfs.h"
#define VERSION "0.5"
@@ -101,32 +103,12 @@ void *malloc_or_die(unsigned int size)
static const char *find_debugfs(void)
{
- static char debugfs[MAX_PATH+1];
- static int debugfs_found;
- char type[100];
- FILE *fp;
-
- if (debugfs_found)
- return debugfs;
-
- if ((fp = fopen("/proc/mounts","r")) == NULL)
- die("Can't open /proc/mounts for read");
-
- while (fscanf(fp, "%*s %"
- STR(MAX_PATH)
- "s %99s %*s %*d %*d\n",
- debugfs, type) == 2) {
- if (strcmp(type, "debugfs") == 0)
- break;
- }
- fclose(fp);
-
- if (strcmp(type, "debugfs") != 0)
- die("debugfs not mounted, please mount");
+ const char *path = debugfs_mount(NULL);
- debugfs_found = 1;
+ if (!path)
+ die("Your kernel not support debugfs filesystem");
- return debugfs;
+ return path;
}
/*
@@ -271,6 +253,8 @@ static void read_header_files(void)
write_or_die("header_page", 12);
write_or_die(&size, 8);
check_size = copy_file_fd(fd);
+ close(fd);
+
if (size != check_size)
die("wrong size for '%s' size=%lld read=%lld",
path, size, check_size);
@@ -289,6 +273,7 @@ static void read_header_files(void)
if (size != check_size)
die("wrong size for '%s'", path);
put_tracing_file(path);
+ close(fd);
}
static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
@@ -317,7 +302,8 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
die("can't read directory '%s'", sys);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
!name_in_tp_list(dent->d_name, tps))
continue;
@@ -334,7 +320,8 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
rewinddir(dir);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
!name_in_tp_list(dent->d_name, tps))
continue;
@@ -353,6 +340,7 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
free(format);
}
+ closedir(dir);
}
static void read_ftrace_files(struct tracepoint_path *tps)
@@ -394,26 +382,21 @@ static void read_event_files(struct tracepoint_path *tps)
die("can't read directory '%s'", path);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
strcmp(dent->d_name, "ftrace") == 0 ||
!system_in_tp_list(dent->d_name, tps))
continue;
- sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2);
- sprintf(sys, "%s/%s", path, dent->d_name);
- ret = stat(sys, &st);
- free(sys);
- if (ret < 0)
- continue;
- if (S_ISDIR(st.st_mode))
- count++;
+ count++;
}
write_or_die(&count, 4);
rewinddir(dir);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
strcmp(dent->d_name, "ftrace") == 0 ||
!system_in_tp_list(dent->d_name, tps))
@@ -422,14 +405,13 @@ static void read_event_files(struct tracepoint_path *tps)
sprintf(sys, "%s/%s", path, dent->d_name);
ret = stat(sys, &st);
if (ret >= 0) {
- if (S_ISDIR(st.st_mode)) {
- write_or_die(dent->d_name, strlen(dent->d_name) + 1);
- copy_event_system(sys, tps);
- }
+ write_or_die(dent->d_name, strlen(dent->d_name) + 1);
+ copy_event_system(sys, tps);
}
free(sys);
}
+ closedir(dir);
put_tracing_file(path);
}
@@ -533,7 +515,7 @@ int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
write_or_die(buf, 1);
/* save page_size */
- page_size = getpagesize();
+ page_size = sysconf(_SC_PAGESIZE);
write_or_die(&page_size, 4);
read_header_files();
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index c5c32be040bf..9b3c20f42f98 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -1925,6 +1925,15 @@ void *raw_field_ptr(struct event *event, const char *name, void *data)
if (!field)
return NULL;
+ if (field->flags & FIELD_IS_STRING) {
+ int offset;
+
+ offset = *(int *)(data + field->offset);
+ offset &= 0xffff;
+
+ return data + offset;
+ }
+
return data + field->offset;
}
@@ -3277,3 +3286,18 @@ void parse_set_info(int nr_cpus, int long_sz)
cpus = nr_cpus;
long_size = long_sz;
}
+
+int common_pc(struct scripting_context *context)
+{
+ return parse_common_pc(context->event_data);
+}
+
+int common_flags(struct scripting_context *context)
+{
+ return parse_common_flags(context->event_data);
+}
+
+int common_lock_depth(struct scripting_context *context)
+{
+ return parse_common_lock_depth(context->event_data);
+}
diff --git a/tools/perf/util/trace-event-perl.h b/tools/perf/util/trace-event-perl.h
deleted file mode 100644
index e88fb26137bb..000000000000
--- a/tools/perf/util/trace-event-perl.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef __PERF_TRACE_EVENT_PERL_H
-#define __PERF_TRACE_EVENT_PERL_H
-#ifdef NO_LIBPERL
-typedef int INTERP;
-#define dSP
-#define ENTER
-#define SAVETMPS
-#define PUTBACK
-#define SPAGAIN
-#define FREETMPS
-#define LEAVE
-#define SP
-#define ERRSV
-#define G_SCALAR (0)
-#define G_DISCARD (0)
-#define G_NOARGS (0)
-#define PUSHMARK(a)
-#define SvTRUE(a) (0)
-#define XPUSHs(s)
-#define sv_2mortal(a)
-#define newSVpv(a,b)
-#define newSVuv(a)
-#define newSViv(a)
-#define get_cv(a,b) (0)
-#define call_pv(a,b) (0)
-#define perl_alloc() (0)
-#define perl_construct(a) (0)
-#define perl_parse(a,b,c,d,e) (0)
-#define perl_run(a) (0)
-#define perl_destruct(a) (0)
-#define perl_free(a) (0)
-#define pTHX void
-#define CV void
-#define dXSUB_SYS
-#define pTHX_
-static inline void newXS(const char *a, void *b, const char *c) {}
-static void boot_Perf__Trace__Context(pTHX_ CV *cv) {}
-static void boot_DynaLoader(pTHX_ CV *cv) {}
-#else
-#include <EXTERN.h>
-#include <perl.h>
-void boot_Perf__Trace__Context(pTHX_ CV *cv);
-void boot_DynaLoader(pTHX_ CV *cv);
-typedef PerlInterpreter * INTERP;
-#endif
-
-struct scripting_context {
- void *event_data;
-};
-
-int common_pc(struct scripting_context *context);
-int common_flags(struct scripting_context *context);
-int common_lock_depth(struct scripting_context *context);
-
-#endif /* __PERF_TRACE_EVENT_PERL_H */
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 1744422cafcb..7cd1193918c7 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -18,7 +18,7 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#define _LARGEFILE64_SOURCE
+#define _FILE_OFFSET_BITS 64
#include <dirent.h>
#include <stdio.h>
@@ -83,7 +83,7 @@ static char *read_string(void)
char *str = NULL;
int size = 0;
int i;
- int r;
+ off_t r;
for (;;) {
r = read(input_fd, buf, BUFSIZ);
@@ -118,7 +118,7 @@ static char *read_string(void)
/* move the file descriptor to the end of the string */
r = lseek(input_fd, -(r - i), SEEK_CUR);
- if (r < 0)
+ if (r == (off_t)-1)
die("lseek");
if (str) {
@@ -282,8 +282,8 @@ static void update_cpu_data_index(int cpu)
static void get_next_page(int cpu)
{
- off64_t save_seek;
- off64_t ret;
+ off_t save_seek;
+ off_t ret;
if (!cpu_data[cpu].page)
return;
@@ -298,17 +298,17 @@ static void get_next_page(int cpu)
update_cpu_data_index(cpu);
/* other parts of the code may expect the pointer to not move */
- save_seek = lseek64(input_fd, 0, SEEK_CUR);
+ save_seek = lseek(input_fd, 0, SEEK_CUR);
- ret = lseek64(input_fd, cpu_data[cpu].offset, SEEK_SET);
- if (ret < 0)
+ ret = lseek(input_fd, cpu_data[cpu].offset, SEEK_SET);
+ if (ret == (off_t)-1)
die("failed to lseek");
ret = read(input_fd, cpu_data[cpu].page, page_size);
if (ret < 0)
die("failed to read page");
/* reset the file pointer back */
- lseek64(input_fd, save_seek, SEEK_SET);
+ lseek(input_fd, save_seek, SEEK_SET);
return;
}
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
new file mode 100644
index 000000000000..7ea983acfaea
--- /dev/null
+++ b/tools/perf/util/trace-event-scripting.c
@@ -0,0 +1,167 @@
+/*
+ * trace-event-scripting. Scripting engine common and initialization code.
+ *
+ * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "../perf.h"
+#include "util.h"
+#include "trace-event.h"
+
+struct scripting_context *scripting_context;
+
+static int stop_script_unsupported(void)
+{
+ return 0;
+}
+
+static void process_event_unsupported(int cpu __unused,
+ void *data __unused,
+ int size __unused,
+ unsigned long long nsecs __unused,
+ char *comm __unused)
+{
+}
+
+static void print_python_unsupported_msg(void)
+{
+ fprintf(stderr, "Python scripting not supported."
+ " Install libpython and rebuild perf to enable it.\n"
+ "For example:\n # apt-get install python-dev (ubuntu)"
+ "\n # yum install python-devel (Fedora)"
+ "\n etc.\n");
+}
+
+static int python_start_script_unsupported(const char *script __unused,
+ int argc __unused,
+ const char **argv __unused)
+{
+ print_python_unsupported_msg();
+
+ return -1;
+}
+
+static int python_generate_script_unsupported(const char *outfile __unused)
+{
+ print_python_unsupported_msg();
+
+ return -1;
+}
+
+struct scripting_ops python_scripting_unsupported_ops = {
+ .name = "Python",
+ .start_script = python_start_script_unsupported,
+ .stop_script = stop_script_unsupported,
+ .process_event = process_event_unsupported,
+ .generate_script = python_generate_script_unsupported,
+};
+
+static void register_python_scripting(struct scripting_ops *scripting_ops)
+{
+ int err;
+ err = script_spec_register("Python", scripting_ops);
+ if (err)
+ die("error registering Python script extension");
+
+ err = script_spec_register("py", scripting_ops);
+ if (err)
+ die("error registering py script extension");
+
+ scripting_context = malloc(sizeof(struct scripting_context));
+}
+
+#ifdef NO_LIBPYTHON
+void setup_python_scripting(void)
+{
+ register_python_scripting(&python_scripting_unsupported_ops);
+}
+#else
+struct scripting_ops python_scripting_ops;
+
+void setup_python_scripting(void)
+{
+ register_python_scripting(&python_scripting_ops);
+}
+#endif
+
+static void print_perl_unsupported_msg(void)
+{
+ fprintf(stderr, "Perl scripting not supported."
+ " Install libperl and rebuild perf to enable it.\n"
+ "For example:\n # apt-get install libperl-dev (ubuntu)"
+ "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
+ "\n etc.\n");
+}
+
+static int perl_start_script_unsupported(const char *script __unused,
+ int argc __unused,
+ const char **argv __unused)
+{
+ print_perl_unsupported_msg();
+
+ return -1;
+}
+
+static int perl_generate_script_unsupported(const char *outfile __unused)
+{
+ print_perl_unsupported_msg();
+
+ return -1;
+}
+
+struct scripting_ops perl_scripting_unsupported_ops = {
+ .name = "Perl",
+ .start_script = perl_start_script_unsupported,
+ .stop_script = stop_script_unsupported,
+ .process_event = process_event_unsupported,
+ .generate_script = perl_generate_script_unsupported,
+};
+
+static void register_perl_scripting(struct scripting_ops *scripting_ops)
+{
+ int err;
+ err = script_spec_register("Perl", scripting_ops);
+ if (err)
+ die("error registering Perl script extension");
+
+ err = script_spec_register("pl", scripting_ops);
+ if (err)
+ die("error registering pl script extension");
+
+ scripting_context = malloc(sizeof(struct scripting_context));
+}
+
+#ifdef NO_LIBPERL
+void setup_perl_scripting(void)
+{
+ register_perl_scripting(&perl_scripting_unsupported_ops);
+}
+#else
+struct scripting_ops perl_scripting_ops;
+
+void setup_perl_scripting(void)
+{
+ register_perl_scripting(&perl_scripting_ops);
+}
+#endif
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 6ad405620c9b..c3269b937db4 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -279,7 +279,15 @@ struct scripting_ops {
int script_spec_register(const char *spec, struct scripting_ops *ops);
-extern struct scripting_ops perl_scripting_ops;
void setup_perl_scripting(void);
+void setup_python_scripting(void);
+
+struct scripting_context {
+ void *event_data;
+};
+
+int common_pc(struct scripting_context *context);
+int common_flags(struct scripting_context *context);
+int common_lock_depth(struct scripting_context *context);
#endif /* __PERF_TRACE_EVENTS_H */
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
new file mode 100644
index 000000000000..f9b890fde681
--- /dev/null
+++ b/tools/perf/util/util.c
@@ -0,0 +1,94 @@
+#include "util.h"
+#include <sys/mman.h>
+
+int mkdir_p(char *path, mode_t mode)
+{
+ struct stat st;
+ int err;
+ char *d = path;
+
+ if (*d != '/')
+ return -1;
+
+ if (stat(path, &st) == 0)
+ return 0;
+
+ while (*++d == '/');
+
+ while ((d = strchr(d, '/'))) {
+ *d = '\0';
+ err = stat(path, &st) && mkdir(path, mode);
+ *d++ = '/';
+ if (err)
+ return -1;
+ while (*d == '/')
+ ++d;
+ }
+ return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
+}
+
+static int slow_copyfile(const char *from, const char *to)
+{
+ int err = 0;
+ char *line = NULL;
+ size_t n;
+ FILE *from_fp = fopen(from, "r"), *to_fp;
+
+ if (from_fp == NULL)
+ goto out;
+
+ to_fp = fopen(to, "w");
+ if (to_fp == NULL)
+ goto out_fclose_from;
+
+ while (getline(&line, &n, from_fp) > 0)
+ if (fputs(line, to_fp) == EOF)
+ goto out_fclose_to;
+ err = 0;
+out_fclose_to:
+ fclose(to_fp);
+ free(line);
+out_fclose_from:
+ fclose(from_fp);
+out:
+ return err;
+}
+
+int copyfile(const char *from, const char *to)
+{
+ int fromfd, tofd;
+ struct stat st;
+ void *addr;
+ int err = -1;
+
+ if (stat(from, &st))
+ goto out;
+
+ if (st.st_size == 0) /* /proc? do it slowly... */
+ return slow_copyfile(from, to);
+
+ fromfd = open(from, O_RDONLY);
+ if (fromfd < 0)
+ goto out;
+
+ tofd = creat(to, 0755);
+ if (tofd < 0)
+ goto out_close_from;
+
+ addr = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fromfd, 0);
+ if (addr == MAP_FAILED)
+ goto out_close_to;
+
+ if (write(tofd, addr, st.st_size) == st.st_size)
+ err = 0;
+
+ munmap(addr, st.st_size);
+out_close_to:
+ close(tofd);
+ if (err)
+ unlink(to);
+out_close_from:
+ close(fromfd);
+out:
+ return err;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index c673d8825883..0f5b2a6f1080 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -403,4 +403,7 @@ void git_qsort(void *base, size_t nmemb, size_t size,
#endif
#endif
+int mkdir_p(char *path, mode_t mode);
+int copyfile(const char *from, const char *to);
+
#endif
diff --git a/tools/perf/util/values.c b/tools/perf/util/values.c
index 1c15e39f99e3..cfa55d686e3b 100644
--- a/tools/perf/util/values.c
+++ b/tools/perf/util/values.c
@@ -169,6 +169,7 @@ static void perf_read_values__display_pretty(FILE *fp,
counterwidth[j], values->value[i][j]);
fprintf(fp, "\n");
}
+ free(counterwidth);
}
static void perf_read_values__display_raw(FILE *fp,