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authorEric Andersen <andersen@codepoet.org>2003-01-22 14:51:59 +0000
committerEric Andersen <andersen@codepoet.org>2003-01-22 14:51:59 +0000
commit49bf4a5a4c54d8bf1c32ce29c23d1cbbf8a4b0a4 (patch)
treed29611aa5f537854bfdbd81d86c4341041b90d6b /libc/sysdeps/linux
parent5faa9568e41b08fa5be573662b21ecbe031f612d (diff)
Looks like sigaction on arm needs adjustment, so split this into
a common header file and a default implementation.
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/common/bits/kernel_sigaction.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/kernel_sigaction.h b/libc/sysdeps/linux/common/bits/kernel_sigaction.h
new file mode 100644
index 000000000..5bb129961
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/kernel_sigaction.h
@@ -0,0 +1,92 @@
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+/* This file provides whatever this particular arch's kernel thinks
+ * the sigaction struct should look like... */
+
+#if defined(__alpha__)
+#undef HAVE_SA_RESTORER
+/* This is the sigaction struction from the Linux 2.1.20 kernel. */
+struct old_kernel_sigaction {
+ __sighandler_t k_sa_handler;
+ unsigned long sa_mask;
+ unsigned int sa_flags;
+};
+/* This is the sigaction structure from the Linux 2.1.68 kernel. */
+struct kernel_sigaction {
+ __sighandler_t k_sa_handler;
+ unsigned int sa_flags;
+ sigset_t sa_mask;
+};
+#elif defined(__hppa__)
+#undef HAVE_SA_RESTORER
+/* This is the sigaction struction from the Linux 2.1.20 kernel. */
+/* Blah. This is bogus. We don't ever use it. */
+struct old_kernel_sigaction {
+ __sighandler_t k_sa_handler;
+ unsigned long sa_mask;
+ unsigned long sa_flags;
+};
+/* This is the sigaction structure from the Linux 2.1.68 kernel. */
+struct kernel_sigaction {
+ __sighandler_t k_sa_handler;
+ unsigned long sa_flags;
+ sigset_t sa_mask;
+};
+#elif defined(__mips__)
+#define HAVE_SA_RESTORER
+/* This is the sigaction structure from the Linux 2.1.24 kernel. */
+#include <sgidefs.h>
+struct old_kernel_sigaction {
+ unsigned int sa_flags;
+ __sighandler_t k_sa_handler;
+ unsigned long sa_mask;
+ unsigned int __pad0[3]; /* reserved, keep size constant */
+ /* Abi says here follows reserved int[2] */
+ void (*sa_restorer)(void);
+#if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2)
+ /* For 32 bit code we have to pad struct sigaction to get
+ * constant size for the ABI */
+ int pad1[1]; /* reserved */
+#endif
+};
+#define _KERNEL_NSIG 128
+#define _KERNEL_NSIG_BPW 32
+#define _KERNEL_NSIG_WORDS (_KERNEL_NSIG / _KERNEL_NSIG_BPW)
+
+typedef struct {
+ unsigned long sig[_KERNEL_NSIG_WORDS];
+} kernel_sigset_t;
+
+/* This is the sigaction structure from the Linux 2.1.68 kernel. */
+struct kernel_sigaction {
+ unsigned int sa_flags;
+ __sighandler_t k_sa_handler;
+ kernel_sigset_t sa_mask;
+ void (*sa_restorer)(void);
+ int s_resv[1]; /* reserved */
+};
+#else
+#define HAVE_SA_RESTORER
+/* This is the sigaction structure from the Linux 2.1.20 kernel. */
+struct old_kernel_sigaction {
+ __sighandler_t k_sa_handler;
+ unsigned long sa_mask;
+ unsigned long sa_flags;
+ void (*sa_restorer) (void);
+};
+/* This is the sigaction structure from the Linux 2.1.68 kernel. */
+struct kernel_sigaction {
+ __sighandler_t k_sa_handler;
+ unsigned long sa_flags;
+ void (*sa_restorer) (void);
+ sigset_t sa_mask;
+};
+#endif
+
+extern int __rt_sigaction (int, const struct kernel_sigaction *__unbounded,
+ struct kernel_sigaction *__unbounded, size_t);
+
+extern int __sigaction (int, const struct old_kernel_sigaction *__unbounded,
+ struct old_kernel_sigaction *__unbounded);
+