Looks like sigaction on arm needs adjustment, so split this into

a common header file and a default implementation.

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);
+