[src/trunk]: src/lib/libc/sys - Use the signal trampoline version constants f...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d0782306e762
branches:  trunk
changeset: 1024521:d0782306e762
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Wed Oct 27 04:48:33 2021 +0000

description:
- Use the signal trampoline version constants from <sys/signal.h>.
- Declare the sigtramp externs as as char arrays, not int arrays; not all
  platforms have fixed-sized 32-bit instructions.

diffstat:

 lib/libc/sys/__sigaction14_sigtramp.c |  14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diffs (49 lines):

diff -r ee67459c0a1d -r d0782306e762 lib/libc/sys/__sigaction14_sigtramp.c
--- a/lib/libc/sys/__sigaction14_sigtramp.c     Wed Oct 27 04:45:42 2021 +0000
+++ b/lib/libc/sys/__sigaction14_sigtramp.c     Wed Oct 27 04:48:33 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: __sigaction14_sigtramp.c,v 1.1 2021/10/26 16:16:36 christos Exp $      */
+/*     $NetBSD: __sigaction14_sigtramp.c,v 1.2 2021/10/27 04:48:33 thorpej Exp $       */
 
 /*-
  * Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: __sigaction14_sigtramp.c,v 1.1 2021/10/26 16:16:36 christos Exp $");
+__RCSID("$NetBSD: __sigaction14_sigtramp.c,v 1.2 2021/10/27 04:48:33 thorpej Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -41,12 +41,6 @@
 
 #include "extern.h"
 
-#ifndef __SIGTRAMP_SIGCONTEXT_VERSION
-#define __SIGTRAMP_SIGCONTEXT_VERSION 1
-#endif
-#ifndef __SIGTRAMP_SIGINFO_VERSION
-#define __SIGTRAMP_SIGINFO_VERSION 2
-#endif
 #define C(a,b) __CONCAT(a,b)
 #define __SIGTRAMP_SIGCONTEXT  \
     C(__sigtramp_sigcontext_,__SIGTRAMP_SIGCONTEXT_VERSION)
@@ -60,7 +54,7 @@
 int
 __libc_sigaction14(int sig, const struct sigaction *act, struct sigaction *oact)
 {
-       extern const int __SIGTRAMP_SIGINFO[];
+       extern const char __SIGTRAMP_SIGINFO[];
 
        /*
         * If no sigaction, use the "default" trampoline since it won't
@@ -75,7 +69,7 @@
         * set in the sigaction.
         */
        if ((act->sa_flags & SA_SIGINFO) == 0) {
-               extern const int __SIGTRAMP_SIGCONTEXT[];
+               extern const char __SIGTRAMP_SIGCONTEXT[];
                int sav = errno;
                int rv =  __sigaction_sigtramp(sig, act, oact,
                    __SIGTRAMP_SIGCONTEXT, __SIGTRAMP_SIGCONTEXT_VERSION);