Messages in this thread Patch in this message | | | Subject | [PATCH 5/19] UML - signal initialization cleanup | Date | Thu, 06 Jul 2006 20:33:37 -0400 | From | Jeff Dike <> |
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It turns out that init_new_thread_signals is always called with altstack == 1, so we can eliminate the parameter.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Index: linux-2.6.17/arch/um/include/os.h =================================================================== --- linux-2.6.17.orig/arch/um/include/os.h 2006-06-20 17:24:29.000000000 -0400 +++ linux-2.6.17/arch/um/include/os.h 2006-07-06 13:25:20.000000000 -0400 @@ -199,7 +199,7 @@ extern int os_getpid(void); extern int os_getpgrp(void); extern void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int)); -extern void init_new_thread_signals(int altstack); +extern void init_new_thread_signals(void); extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr); extern int os_map_memory(void *virt, int fd, unsigned long long off, Index: linux-2.6.17/arch/um/kernel/skas/process_kern.c =================================================================== --- linux-2.6.17.orig/arch/um/kernel/skas/process_kern.c 2006-06-20 17:24:29.000000000 -0400 +++ linux-2.6.17/arch/um/kernel/skas/process_kern.c 2006-07-06 13:25:20.000000000 -0400 @@ -177,7 +177,7 @@ int start_uml_skas(void) if(proc_mm) userspace_pid[0] = start_userspace(0); - init_new_thread_signals(1); + init_new_thread_signals(); init_task.thread.request.u.thread.proc = start_kernel_proc; init_task.thread.request.u.thread.arg = NULL; Index: linux-2.6.17/arch/um/kernel/tt/exec_kern.c =================================================================== --- linux-2.6.17.orig/arch/um/kernel/tt/exec_kern.c 2006-03-23 16:40:20.000000000 -0500 +++ linux-2.6.17/arch/um/kernel/tt/exec_kern.c 2006-07-06 13:25:20.000000000 -0400 @@ -21,7 +21,7 @@ static int exec_tramp(void *sig_stack) { init_new_thread_stack(sig_stack, NULL); - init_new_thread_signals(1); + init_new_thread_signals(); os_stop_process(os_getpid()); return(0); } Index: linux-2.6.17/arch/um/kernel/tt/process_kern.c =================================================================== --- linux-2.6.17.orig/arch/um/kernel/tt/process_kern.c 2006-07-06 13:22:13.000000000 -0400 +++ linux-2.6.17/arch/um/kernel/tt/process_kern.c 2006-07-06 13:25:20.000000000 -0400 @@ -142,7 +142,7 @@ static void new_thread_handler(int sig) schedule_tail(current->thread.prev_sched); current->thread.prev_sched = NULL; - init_new_thread_signals(1); + init_new_thread_signals(); enable_timer(); free_page(current->thread.temp_stack); set_cmdline("(kernel thread)"); Index: linux-2.6.17/arch/um/os-Linux/process.c =================================================================== --- linux-2.6.17.orig/arch/um/os-Linux/process.c 2006-06-20 17:24:29.000000000 -0400 +++ linux-2.6.17/arch/um/os-Linux/process.c 2006-07-06 13:26:38.000000000 -0400 @@ -250,25 +250,24 @@ void init_new_thread_stack(void *sig_sta if(usr1_handler) set_handler(SIGUSR1, usr1_handler, flags, -1); } -void init_new_thread_signals(int altstack) +void init_new_thread_signals(void) { - int flags = altstack ? SA_ONSTACK : 0; - - set_handler(SIGSEGV, (__sighandler_t) sig_handler, flags, + set_handler(SIGSEGV, (__sighandler_t) sig_handler, SA_ONSTACK, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); - set_handler(SIGTRAP, (__sighandler_t) sig_handler, flags, + set_handler(SIGTRAP, (__sighandler_t) sig_handler, SA_ONSTACK, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); - set_handler(SIGFPE, (__sighandler_t) sig_handler, flags, + set_handler(SIGFPE, (__sighandler_t) sig_handler, SA_ONSTACK, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); - set_handler(SIGILL, (__sighandler_t) sig_handler, flags, + set_handler(SIGILL, (__sighandler_t) sig_handler, SA_ONSTACK, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); - set_handler(SIGBUS, (__sighandler_t) sig_handler, flags, + set_handler(SIGBUS, (__sighandler_t) sig_handler, SA_ONSTACK, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); set_handler(SIGUSR2, (__sighandler_t) sig_handler, - flags, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); + SA_ONSTACK, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, + -1); signal(SIGHUP, SIG_IGN); - init_irq_signals(altstack); + init_irq_signals(1); } int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr) Index: linux-2.6.17/arch/um/os-Linux/skas/process.c =================================================================== --- linux-2.6.17.orig/arch/um/os-Linux/skas/process.c 2006-06-20 17:24:29.000000000 -0400 +++ linux-2.6.17/arch/um/os-Linux/skas/process.c 2006-07-06 13:25:20.000000000 -0400 @@ -159,7 +159,7 @@ static int userspace_tramp(void *stack) ptrace(PTRACE_TRACEME, 0, 0, 0); - init_new_thread_signals(1); + init_new_thread_signals(); enable_timer(); if(!proc_mm){ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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