Hello Andreas,
I had a experience that pthread_sighander() of current glibc-2.2
breaks stack. I tracked down the problem, and finally found the
mismatch between kenrel and glibc-2.2.
Current kernel pass following args to the signal handler for the
case of not SA_SIGINFO specified.
a0 signal number
a1 0 (cause code?)
a2 pointer to sigcontext struct
But, the pthread_sighander() of glibc-2.2 expects;
1st arg. signal number
2nd arg. sigcontext struct itself (not pointer)
Patches attached below. Please apply.
Thanks.
---
Hiroyuki Machida
Creative Station SCE Inc.
=== ChangeLog entry.
* sysdeps/unix/sysv/linux/mips/register-dump.h (REGISTER_DUMP):
Change type of CTX to (struct sigcontext *).
* sysdeps/unix/sysv/linux/mips/sigcontextinfo.h (GET_PC): Likewise.
(GET_FRAME): Likewise (GET_STACK): Likewise.
(SIGCONTEXT): Likewise. Add 2nd arg _CODE.
(SIGCONTEXT_EXTRA_ARGS): Add 2nd arg _CODE.
===================================================================
--- sysdeps/unix/sysv/linux/mips/register-dump.h.ORG 2000/10/25 05:00:53 1.1
+++ sysdeps/unix/sysv/linux/mips/register-dump.h 2001/01/12 13:03:30 1.2
@@ -105,4 +105,4 @@ register_dump (int fd, struct sigcontext
}
-#define REGISTER_DUMP register_dump (fd, &ctx)
+#define REGISTER_DUMP register_dump (fd, ctx)
===================================================================
--- sysdeps/unix/sysv/linux/mips/sigcontextinfo.h.ORG 2000/10/25 05:00:53 1.1
+++ sysdeps/unix/sysv/linux/mips/sigcontextinfo.h 2001/01/12 13:03:31 1.2
@@ -18,8 +18,8 @@
Boston, MA 02111-1307, USA. */
-#define SIGCONTEXT struct sigcontext
-#define SIGCONTEXT_EXTRA_ARGS
-#define GET_PC(ctx) ((void *) ctx.sc_pc)
-#define GET_FRAME(ctx) ((void *) ctx.sc_regs[30])
-#define GET_STACK(ctx) ((void *) ctx.sc_regs[29])
+#define SIGCONTEXT unsigned long _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx) ((void *) ctx->sc_pc)
+#define GET_FRAME(ctx) ((void *) ctx->sc_regs[30])
+#define GET_STACK(ctx) ((void *) ctx->sc_regs[29])
