diff options
34 files changed, 47 insertions, 83 deletions
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 48c4df2389ac..a8c97d42ec8e 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -478,7 +478,7 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, force_sigsegv(sig, current); return; } - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } static inline void diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index c126eba8411d..fd2392a17ac1 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -557,12 +557,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, force_sigsegv(sig, tsk); return; } - - /* - * Block the signal if we were successful. - */ - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, 0); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c index e883fa5eb845..c140f9b41dce 100644 --- a/arch/avr32/kernel/signal.c +++ b/arch/avr32/kernel/signal.c @@ -241,7 +241,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, if (ret != 0) force_sigsegv(sig, current); else - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c index 463612643821..35459e681483 100644 --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -260,8 +260,7 @@ handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, if (ret) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c index eb1b3086ae00..3d8f3c22a94f 100644 --- a/arch/c6x/kernel/signal.c +++ b/arch/c6x/kernel/signal.c @@ -276,8 +276,7 @@ static void handle_signal(int sig, /* Set up the stack frame */ if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, 0); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c index cf6380cb9a57..0bb477c13a4e 100644 --- a/arch/cris/arch-v10/kernel/signal.c +++ b/arch/cris/arch-v10/kernel/signal.c @@ -453,7 +453,7 @@ static inline void handle_signal(int canrestart, unsigned long sig, ret = setup_frame(sig, ka, oldset, regs); if (ret == 0) - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c index 07b81ee09f65..b60d1b65a426 100644 --- a/arch/cris/arch-v32/kernel/signal.c +++ b/arch/cris/arch-v32/kernel/signal.c @@ -485,7 +485,7 @@ handle_signal(int canrestart, unsigned long sig, ret = setup_frame(sig, ka, oldset, regs); if (ret == 0) - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c index 511285fa2461..4e134c7eceea 100644 --- a/arch/frv/kernel/signal.c +++ b/arch/frv/kernel/signal.c @@ -460,8 +460,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info, if (ret) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, __frame, + signal_delivered(sig, info, ka, __frame, test_thread_flag(TIF_SINGLESTEP)); } /* end handle_signal() */ diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c index aa6f09666915..fca10378701b 100644 --- a/arch/h8300/kernel/signal.c +++ b/arch/h8300/kernel/signal.c @@ -439,7 +439,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, ret = setup_frame(sig, ka, oldset, regs); if (!ret) - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index 439f11a3a8ef..304b0808d072 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -186,8 +186,7 @@ static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c index c4041c76c07d..a199be1fe619 100644 --- a/arch/ia64/kernel/signal.c +++ b/arch/ia64/kernel/signal.c @@ -419,12 +419,7 @@ handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, if (!setup_frame(sig, ka, info, sigmask_to_save(), scr)) return 0; - block_sigmask(ka, sig); - - /* - * Let tracing know that we've done the handler setup. - */ - tracehook_signal_handler(sig, info, ka, &scr->pt, + signal_delivered(sig, info, ka, &scr->pt, test_thread_flag(TIF_SINGLESTEP)); return 1; diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c index 07f9032576c0..f3fb2c029cfc 100644 --- a/arch/m32r/kernel/signal.c +++ b/arch/m32r/kernel/signal.c @@ -294,7 +294,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs)) return; - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c index c00caad215a6..710a528b928b 100644 --- a/arch/m68k/kernel/signal.c +++ b/arch/m68k/kernel/signal.c @@ -1137,7 +1137,7 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, if (err) return; - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); if (test_thread_flag(TIF_DELAYED_TRACE)) { regs->sr &= ~0x8000; diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c index c662e68671a2..76b9722557db 100644 --- a/arch/microblaze/kernel/signal.c +++ b/arch/microblaze/kernel/signal.c @@ -323,7 +323,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, if (ret) return; - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 02e0cba24f82..f2c09cfc60ac 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -551,7 +551,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info, if (ret) return; - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } static void do_signal(struct pt_regs *regs) diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c index 4f6d20763061..6ab0bee2a54f 100644 --- a/arch/mn10300/kernel/signal.c +++ b/arch/mn10300/kernel/signal.c @@ -461,8 +461,7 @@ static int handle_signal(int sig, if (ret) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/openrisc/kernel/signal.c b/arch/openrisc/kernel/signal.c index 53972b7260b7..30110297f4f9 100644 --- a/arch/openrisc/kernel/signal.c +++ b/arch/openrisc/kernel/signal.c @@ -259,8 +259,7 @@ handle_signal(unsigned long sig, if (ret) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 25161eaf720d..594459bde14e 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -449,9 +449,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall)) return 0; - block_sigmask(ka, sig); - - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP) || test_thread_flag(TIF_BLOCKSTEP)); diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index 129bdffc6daf..5c023c9cf16e 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -148,11 +148,7 @@ static int do_signal(struct pt_regs *regs) regs->trap = 0; if (ret) { - block_sigmask(&ka, signr); - /* - * Let tracing know that we've done the handler setup. - */ - tracehook_signal_handler(signr, &info, &ka, regs, + signal_delivered(signr, &info, &ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 923baa96c0b0..3c0c19830c37 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -580,11 +580,7 @@ void handle_signal32(unsigned long sig, struct k_sigaction *ka, ret = setup_frame32(sig, ka, oldset, regs); if (ret) return; - block_sigmask(ka, sig); - /* - * Let tracing know that we've done the handler setup. - */ - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLE_STEP)); } diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index 8332a6943384..ac565b44aabb 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -375,11 +375,7 @@ static void handle_signal(unsigned long sig, struct k_sigaction *ka, ret = setup_frame(sig, ka, oldset, regs); if (ret) return; - block_sigmask(ka, sig); - /* - * Let tracing know that we've done the handler setup. - */ - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLE_STEP)); } diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c index f1b3fef0907b..e382c52ca0d9 100644 --- a/arch/score/kernel/signal.c +++ b/arch/score/kernel/signal.c @@ -267,7 +267,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info, if (setup_rt_frame(ka, regs, sig, sigmask_to_save(), info) < 0) return; - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } static void do_signal(struct pt_regs *regs) diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index e4a531414e19..d6b7b6154f87 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -533,8 +533,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, if (ret) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 75960ef6c1d1..6b5b3dfe886b 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -650,8 +650,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, if (ret) return; - block_sigmask(ka, sig); - tracehook_signal_handler(sig, info, ka, regs, + signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP)); } diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index ba3dbfcdb28e..a53e0a5fd3a3 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -785,8 +785,7 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka, if (err) return; - block_sigmask(ka, signr); - tracehook_signal_handler(signr, info, ka, regs, 0); + signal_delivered(signr, info, ka, regs, 0); } static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs, diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 1bfa854be602..68f9c8650af4 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -460,8 +460,7 @@ handle_signal(unsigned long signr, struct k_sigaction *ka, if (err) return; - block_sigmask(ka, signr); - tracehook_signal_handler(signr, info, ka, regs, 0); + signal_delivered(signr, info, ka, regs, 0); } static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index 23b60caa6c43..867de2f8189c 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -473,8 +473,7 @@ static inline void handle_signal(unsigned long signr, struct k_sigaction *ka, if (err) return; - block_sigmask(ka, signr); - tracehook_signal_handler(signr, info, ka, regs, 0); + signal_delivered(signr, info, ka, regs, 0); } static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c index e068aa0c6dfc..e29b0553211d 100644 --- a/arch/tile/kernel/signal.c +++ b/arch/tile/kernel/signal.c @@ -278,7 +278,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info, ret = setup_rt_frame(sig, ka, info, oldset, regs); if (ret) return; - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c index 4ce6ab2d2996..7362d58efc29 100644 --- a/arch/um/kernel/signal.c +++ b/arch/um/kernel/signal.c @@ -61,7 +61,7 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr, if (err) force_sigsegv(signr, current); else - block_sigmask(ka, signr); + signal_delivered(signr, info, ka, regs, 0); } static int kern_do_signal(struct pt_regs *regs) diff --git a/arch/unicore32/kernel/signal.c b/arch/unicore32/kernel/signal.c index 4d9c4841989d..8adedb37720a 100644 --- a/arch/unicore32/kernel/signal.c +++ b/arch/unicore32/kernel/signal.c @@ -362,10 +362,7 @@ static void handle_signal(unsigned long sig, struct k_sigaction *ka, return; } - /* - * Block the signal if we were successful. - */ - block_sigmask(ka, sig); + signal_delivered(sig, info, ka, regs, 0); } /* diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 11e206f0f45a..e8a89374d356 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -715,10 +715,8 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, */ regs->flags &= ~X86_EFLAGS_TF; - block_sigmask(ka, sig); - - tracehook_signal_handler(sig, info, ka, regs, - test_thread_flag(TIF_SINGLESTEP)); + signal_delivered(sig, info, ka, regs, + test_thread_flag(TIF_SINGLESTEP)); } #ifdef CONFIG_X86_32 diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c index 4da3c6f6d929..b9f8e5850d3a 100644 --- a/arch/xtensa/kernel/signal.c +++ b/arch/xtensa/kernel/signal.c @@ -493,7 +493,7 @@ static void do_signal(struct pt_regs *regs) if (ret) return; - block_sigmask(&ka, signr); + signal_delivered(signr, info, ka, regs, 0); if (current->ptrace & PT_SINGLESTEP) task_pt_regs(current)->icountlevel = 1; diff --git a/include/linux/signal.h b/include/linux/signal.h index 065e76330398..26b424adc842 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -256,7 +256,7 @@ extern int show_unhandled_signals; extern int sigsuspend(sigset_t *); extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie); -extern void block_sigmask(struct k_sigaction *ka, int signr); +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 struct kmem_cache *sighand_cachep; diff --git a/kernel/signal.c b/kernel/signal.c index df8d721a9e6f..677102789cf2 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2368,17 +2368,20 @@ relock: } /** - * block_sigmask - add @ka's signal mask to current->blocked - * @ka: action for @signr - * @signr: signal that has been successfully delivered + * signal_delivered - + * @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 * * This function should be called when a signal has succesfully been - * delivered. It adds the mask of signals for @ka to current->blocked - * so that they are blocked during the execution of the signal - * handler. In addition, @signr will be blocked unless %SA_NODEFER is - * set in @ka->sa.sa_flags. + * delivered. It updates the blocked signals accordingly (@ka->sa.sa_mask + * is always blocked, and the signal itself is blocked unless %SA_NODEFER + * is set in @ka->sa.sa_flags. Tracing is notified. */ -void block_sigmask(struct k_sigaction *ka, int signr) +void signal_delivered(int sig, siginfo_t *info, struct k_sigaction *ka, + struct pt_regs *regs, int stepping) { sigset_t blocked; @@ -2390,8 +2393,9 @@ void block_sigmask(struct k_sigaction *ka, int signr) sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(&blocked, signr); + sigaddset(&blocked, sig); set_current_blocked(&blocked); + tracehook_signal_handler(sig, info, ka, regs, stepping); } /* |