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authorDenis Vlasenko <vda.linux@googlemail.com>2008-12-15 09:29:33 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2008-12-15 09:29:33 +0000
commit885f507317b6c8576ba2e298c2249d27ea6f8404 (patch)
tree6d9a70d14c2f21d85538a023c7e2e863245c49e6 /libc/sysdeps/linux/alpha
parent1cfb1a324798f6ed03e49813d8dfe6b28dfb9c4f (diff)
sigaction overhaul as described in docs/sigaction.txt
Run tested on i386.
Diffstat (limited to 'libc/sysdeps/linux/alpha')
-rw-r--r--libc/sysdeps/linux/alpha/bits/kernel_sigaction.h15
-rw-r--r--libc/sysdeps/linux/alpha/bits/sigaction.h33
2 files changed, 18 insertions, 30 deletions
diff --git a/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h b/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h
index 626af23fb..cd6b2133d 100644
--- a/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h
+++ b/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h
@@ -9,15 +9,12 @@ struct old_kernel_sigaction {
unsigned int sa_flags;
};
-/* This is the sigaction structure from the Linux 2.1.68 kernel. */
+/* In uclibc, userspace struct sigaction is identical to
+ * "new" struct kernel_sigaction (one from the Linux 2.1.68 kernel).
+ * See sigaction.h
+ */
-struct kernel_sigaction {
- __sighandler_t k_sa_handler;
- unsigned int sa_flags;
- sigset_t sa_mask;
-};
-
-extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
- struct kernel_sigaction *, size_t) attribute_hidden;
+extern int __syscall_rt_sigaction (int, const struct sigaction *,
+ struct sigaction *, size_t) attribute_hidden;
#endif
diff --git a/libc/sysdeps/linux/alpha/bits/sigaction.h b/libc/sysdeps/linux/alpha/bits/sigaction.h
index 80feb2fa2..61dea1180 100644
--- a/libc/sysdeps/linux/alpha/bits/sigaction.h
+++ b/libc/sysdeps/linux/alpha/bits/sigaction.h
@@ -22,30 +22,21 @@
#endif
/* Structure describing the action to be taken when a signal arrives. */
-struct sigaction
- {
- /* Signal handler. */
+struct sigaction {
#ifdef __USE_POSIX199309
- union
- {
- /* Used if SA_SIGINFO is not set. */
- __sighandler_t sa_handler;
- /* Used if SA_SIGINFO is set. */
- void (*sa_sigaction) (int, siginfo_t *, void *);
- }
- __sigaction_handler;
-# define sa_handler __sigaction_handler.sa_handler
-# define sa_sigaction __sigaction_handler.sa_sigaction
+ union {
+ __sighandler_t sa_handler;
+ void (*sa_sigaction)(int, siginfo_t *, void *);
+ } __sigaction_handler;
+# define sa_handler __sigaction_handler.sa_handler
+# define sa_sigaction __sigaction_handler.sa_sigaction
#else
- __sighandler_t sa_handler;
+ __sighandler_t sa_handler;
#endif
-
- /* Additional set of signals to be blocked. */
- __sigset_t sa_mask;
-
- /* Special flags. */
- unsigned int sa_flags;
- };
+ unsigned sa_flags;
+ sigset_t sa_mask;
+ /* Alpha has no sa_restorer field. */
+};
/* Bits in `sa_flags'. */
#define SA_NOCLDSTOP 0x00000004 /* Don't send SIGCHLD when children stop. */