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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.
This commit is contained in:
Ulrich Drepper
2003-12-12 04:32:41 +00:00
parent 1ce9631b86
commit 8e4f5035e3
4 changed files with 23 additions and 27 deletions
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29
sysdeps/unix/sysv/linux/i386/sigaction.c
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@@ -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