summaryrefslogtreecommitdiff
path: root/ports/sysdeps/unix/bsd/ultrix4/mips/sigvec.c
diff options
context:
space:
mode:
Diffstat (limited to 'ports/sysdeps/unix/bsd/ultrix4/mips/sigvec.c')
-rw-r--r--ports/sysdeps/unix/bsd/ultrix4/mips/sigvec.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/bsd/ultrix4/mips/sigvec.c b/ports/sysdeps/unix/bsd/ultrix4/mips/sigvec.c
new file mode 100644
index 000000000..5775c9adb
--- /dev/null
+++ b/ports/sysdeps/unix/bsd/ultrix4/mips/sigvec.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1992, 1996, 1997, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* The sigvec system call on MIPS Ultrix takes an additional
+ parameter, which is the address that is actually called when the
+ signal occurs.
+
+ When a signal occurs, we arrange for the kernel to call __handler.
+ That will save the frame and stack pointers into the context, and
+ then jump to this routine. See __handler.S.
+
+ This code is based on sysdeps/unix/bsd/sun4/sigtramp.c, but it's
+ different because since we get passed the user signal handler we
+ don't actually need a trampoline. */
+
+#include <signal.h>
+#include <stddef.h>
+#include <errno.h>
+
+/* The user's signal handler is called with three arguments. */
+typedef void (*handler_type) (int sig, int code, struct sigcontext *);
+
+extern int __raw_sigvec (int sig, CONST struct sigvec *vec,
+ struct sigvec *ovec,
+ void (*)(int sig, int code,
+ struct sigcontext *,
+ handler_type));
+
+extern void __handler (int sig, int code,
+ struct sigcontext *,
+ handler_type);
+
+int
+__sigvec (sig, vec, ovec)
+ int sig;
+ const struct sigvec *vec;
+ struct sigvec *ovec;
+{
+ return __raw_sigvec (sig, vec, ovec, __handler);
+}