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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-09 09:58:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-09 09:58:12 -0700
commit63b12bdb0d21aca527996fb2c547387bfd3e14b8 (patch)
tree6ab83b2a1c289f30fea18b88f04138ee69c37c6f /include
parentad1f5caf34390bb20fdbb4eaf71b0494e89936f0 (diff)
parent059ade650ae57cfd371af690fdba887af04aded8 (diff)
Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc
Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/sched.h6
-rw-r--r--include/linux/signal.h15
-rw-r--r--include/linux/tracehook.h8
3 files changed, 6 insertions, 23 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index db2f6474e95e..857ba40426ba 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2360,8 +2360,10 @@ static inline int on_sig_stack(unsigned long sp)
static inline int sas_ss_flags(unsigned long sp)
{
- return (current->sas_ss_size == 0 ? SS_DISABLE
- : on_sig_stack(sp) ? SS_ONSTACK : 0);
+ if (!current->sas_ss_size)
+ return SS_DISABLE;
+
+ return on_sig_stack(sp) ? SS_ONSTACK : 0;
}
static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
diff --git a/include/linux/signal.h b/include/linux/signal.h
index c9e65360c49a..750196fcc0a5 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -280,9 +280,8 @@ struct ksignal {
int sig;
};
-extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
+extern int get_signal(struct ksignal *ksig);
extern void signal_setup_done(int failed, struct ksignal *ksig, int stepping);
-extern void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka, struct pt_regs *regs, int stepping);
extern void exit_signals(struct task_struct *tsk);
extern void kernel_sigaction(int, __sighandler_t);
@@ -301,18 +300,6 @@ static inline void disallow_signal(int sig)
kernel_sigaction(sig, SIG_IGN);
}
-/*
- * Eventually that'll replace get_signal_to_deliver(); macro for now,
- * to avoid nastiness with include order.
- */
-#define get_signal(ksig) \
-({ \
- struct ksignal *p = (ksig); \
- p->sig = get_signal_to_deliver(&p->info, &p->ka, \
- signal_pt_regs(), NULL);\
- p->sig > 0; \
-})
-
extern struct kmem_cache *sighand_cachep;
int unhandled_signal(struct task_struct *tsk, int sig);
diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h
index 6f8ab7da27c4..84d497297c5f 100644
--- a/include/linux/tracehook.h
+++ b/include/linux/tracehook.h
@@ -133,10 +133,6 @@ static inline void tracehook_report_syscall_exit(struct pt_regs *regs, int step)
/**
* tracehook_signal_handler - signal handler setup is complete
- * @sig: number of signal being delivered
- * @info: siginfo_t of signal being delivered
- * @ka: sigaction setting that chose the handler
- * @regs: user register state
* @stepping: nonzero if debugger single-step or block-step in use
*
* Called by the arch code after a signal handler has been set up.
@@ -146,9 +142,7 @@ static inline void tracehook_report_syscall_exit(struct pt_regs *regs, int step)
* Called without locks, shortly before returning to user mode
* (or handling more signals).
*/
-static inline void tracehook_signal_handler(int sig, siginfo_t *info,
- const struct k_sigaction *ka,
- struct pt_regs *regs, int stepping)
+static inline void tracehook_signal_handler(int stepping)
{
if (stepping)
ptrace_notify(SIGTRAP);