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| author | Ulrich Drepper <drepper@redhat.com> | 2003-12-12 04:32:41 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-12-12 04:32:41 +0000 |
| commit | 8e4f5035e37bed96fbfa530e3fa8ae8d9bc631cf (patch) | |
| tree | 3eef59b07cbdc428a199beb0d34c4c6f6510b876 /sysdeps/unix | |
| parent | 1ce9631b86cbc5ae3104561f37bf7ea22f8c437c (diff) | |
| download | glibc-8e4f5035e37bed96fbfa530e3fa8ae8d9bc631cf.zip glibc-8e4f5035e37bed96fbfa530e3fa8ae8d9bc631cf.tar.gz glibc-8e4f5035e37bed96fbfa530e3fa8ae8d9bc631cf.tar.bz2 | |
Update.
2003-12-11 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/kernel-features.h: Remove __ASSUME_VSYSCALL.
There might always be processes which have no vDSO.
* sysdeps/generic/dl-sysdep.c: Remove __ASSUME_VSYSCALL uses.
* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/sigaction.c | 29 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/kernel-features.h | 6 |
2 files changed, 14 insertions, 21 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c index 32b5d3c..8971a86 100644 --- a/sysdeps/unix/sysv/linux/i386/sigaction.c +++ b/sysdeps/unix/sysv/linux/i386/sigaction.c @@ -25,6 +25,7 @@ #include <sysdep.h> #include <sys/syscall.h> +#include <ldsodefs.h> #include <kernel-features.h> @@ -84,16 +85,16 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact) if (act) { kact.k_sa_handler = act->sa_handler; + kact.sa_flags = act->sa_flags; memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t)); -# if __ASSUME_VSYSCALL == 0 - kact.sa_flags = act->sa_flags | SA_RESTORER; + if (GL(dl_sysinfo_dso) == NULL) + { + kact.sa_flags |= SA_RESTORER; - kact.sa_restorer = ((act->sa_flags & SA_SIGINFO) - ? &restore_rt : &restore); -# else - kact.sa_flags = act->sa_flags; -# endif + kact.sa_restorer = ((act->sa_flags & SA_SIGINFO) + ? &restore_rt : &restore); + } } /* XXX The size argument hopefully will have to be changed to the @@ -159,7 +160,6 @@ libc_hidden_weak (__sigaction) weak_alias (__libc_sigaction, sigaction) #endif -#if __ASSUME_VSYSCALL == 0 /* NOTE: Please think twice before making any changes to the bits of code below. GDB needs some intimate knowledge about it to recognize them as signal trampolines, and make backtraces through @@ -168,8 +168,8 @@ weak_alias (__libc_sigaction, sigaction) If you ever feel the need to make any changes, please notify the appropriate GDB maintainer. */ -# define RESTORE(name, syscall) RESTORE2 (name, syscall) -# define RESTORE2(name, syscall) \ +#define RESTORE(name, syscall) RESTORE2 (name, syscall) +#define RESTORE2(name, syscall) \ asm \ ( \ ".text\n" \ @@ -179,14 +179,14 @@ asm \ " int $0x80" \ ); -# ifdef __NR_rt_sigaction +#ifdef __NR_rt_sigaction /* The return code for realtime-signals. */ RESTORE (restore_rt, __NR_rt_sigreturn) -# endif +#endif /* For the boring old signals. */ -# undef RESTORE2 -# define RESTORE2(name, syscall) \ +#undef RESTORE2 +#define RESTORE2(name, syscall) \ asm \ ( \ ".text\n" \ @@ -198,4 +198,3 @@ asm \ ); RESTORE (restore, __NR_sigreturn) -#endif diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index 2bc68cb..c2618ff 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -320,12 +320,6 @@ # define __ASSUME_NETLINK_SUPPORT 1 #endif -/* For x86, support for the sysenter instruction was available in - 2.5.53. But the unwind information was added only in 2.5.69. */ -#if __LINUX_KERNEL_VERSION >= 132421 && defined __i386__ -# define __ASSUME_VSYSCALL 1 -#endif - /* The requeue futex functionality was introduced in 2.5.70. */ #if __LINUX_KERNEL_VERSION >= 132422 # define __ASSUME_FUTEX_REQUEUE 1 |