diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 8 | ||||
| -rw-r--r-- | init/main.c | 36 |
2 files changed, 29 insertions, 15 deletions
diff --git a/init/Kconfig b/init/Kconfig index 7656623f5006..8e9904fc3024 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -588,6 +588,13 @@ config KALLSYMS_ALL Say N. +config KALLSYMS_STRIP_GENERATED + bool "Strip machine generated symbols from kallsyms" + depends on KALLSYMS_ALL + default y + help + Say N if you want kallsyms to retain even machine generated symbols. + config KALLSYMS_EXTRA_PASS bool "Do an extra kallsyms pass" depends on KALLSYMS @@ -808,6 +815,7 @@ config TRACEPOINTS config MARKERS bool "Activate markers" + depends on TRACEPOINTS help Place an empty function call at each marker site. Can be dynamically changed for a probe function. diff --git a/init/main.c b/init/main.c index 7e117a231af1..17e9757bfde2 100644 --- a/init/main.c +++ b/init/main.c @@ -63,6 +63,7 @@ #include <linux/signal.h> #include <linux/idr.h> #include <linux/ftrace.h> +#include <trace/boot.h> #include <asm/io.h> #include <asm/bugs.h> @@ -669,6 +670,7 @@ asmlinkage void __init start_kernel(void) efi_enter_virtual_mode(); #endif thread_info_cache_init(); + cred_init(); fork_init(num_physpages); proc_caches_init(); buffer_init(); @@ -703,31 +705,35 @@ core_param(initcall_debug, initcall_debug, bool, 0644); int do_one_initcall(initcall_t fn) { int count = preempt_count(); - ktime_t delta; + ktime_t calltime, delta, rettime; char msgbuf[64]; - struct boot_trace it; + struct boot_trace_call call; + struct boot_trace_ret ret; if (initcall_debug) { - it.caller = task_pid_nr(current); - printk("calling %pF @ %i\n", fn, it.caller); - it.calltime = ktime_get(); + call.caller = task_pid_nr(current); + printk("calling %pF @ %i\n", fn, call.caller); + calltime = ktime_get(); + trace_boot_call(&call, fn); + enable_boot_trace(); } - it.result = fn(); + ret.result = fn(); if (initcall_debug) { - it.rettime = ktime_get(); - delta = ktime_sub(it.rettime, it.calltime); - it.duration = (unsigned long long) delta.tv64 >> 10; + disable_boot_trace(); + rettime = ktime_get(); + delta = ktime_sub(rettime, calltime); + ret.duration = (unsigned long long) ktime_to_ns(delta) >> 10; + trace_boot_ret(&ret, fn); printk("initcall %pF returned %d after %Ld usecs\n", fn, - it.result, it.duration); - trace_boot(&it, fn); + ret.result, ret.duration); } msgbuf[0] = 0; - if (it.result && it.result != -ENODEV && initcall_debug) - sprintf(msgbuf, "error code %d ", it.result); + if (ret.result && ret.result != -ENODEV && initcall_debug) + sprintf(msgbuf, "error code %d ", ret.result); if (preempt_count() != count) { strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); @@ -741,7 +747,7 @@ int do_one_initcall(initcall_t fn) printk("initcall %pF returned with %s\n", fn, msgbuf); } - return it.result; + return ret.result; } @@ -882,7 +888,7 @@ static int __init kernel_init(void * unused) * we're essentially up and running. Get rid of the * initmem segments and start the user-mode stuff.. */ - stop_boot_trace(); + init_post(); return 0; } |