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Let raise work within ld.so (LinuxThreads)
- From: Daniel Jacobowitz <drow at false dot org>
- To: libc-ports at sourceware dot org
- Date: Fri, 11 Nov 2005 17:38:13 -0500
- Subject: Let raise work within ld.so (LinuxThreads)
I'm about to post an ARM GCC patch that adds a call to raise() to libgcc.
This means that rtld-raise.os will automatically be built and added to
ld.so. The NPTL version works fine, but the LinuxThreads version fails to
compile. So provide a much simpler version for this case.
[It shouldn't ever be called, so I didn't worry too much about the details.
It's used to raise SIGFPE if ld.so divides by zero.]
Tested on ARM and committed.
--
Daniel Jacobowitz
CodeSourcery, LLC
2005-11-11 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/raise.c (raise) [IS_IN_rtld]: Just call
__kill.
Index: glibc/linuxthreads/sysdeps/unix/sysv/linux/raise.c
===================================================================
--- glibc.orig/linuxthreads/sysdeps/unix/sysv/linux/raise.c 2003-01-02 19:38:38.000000000 -0500
+++ glibc/linuxthreads/sysdeps/unix/sysv/linux/raise.c 2005-10-31 14:19:58.000000000 -0500
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1996, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 2002, 2003, 2005 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
@@ -18,10 +18,13 @@
#include <signal.h>
#include <unistd.h>
-#include <bits/libc-lock.h>
-#ifndef SHARED
+#ifndef IS_IN_rtld
+# include <bits/libc-lock.h>
+
+# ifndef SHARED
weak_extern (__pthread_raise)
+# endif
#endif
/* Raise the signal SIG. */
@@ -29,8 +32,12 @@ int
raise (sig)
int sig;
{
+#ifdef IS_IN_rtld
+ return __kill (__getpid (), sig);
+#else
return __libc_maybe_call2 (pthread_raise, (sig),
__kill (__getpid (), sig));
+#endif
}
libc_hidden_def (raise)
weak_alias (raise, gsignal)