(profil_counter): Add hack to prevent the compiler from clobbering the signal context.

diff --git a/sysdeps/unix/sysv/linux/i386/profil-counter.h b/sysdeps/unix/sysv/linux/i386/profil-counter.h
index 9af0cbbde46ab34bc428a8dfdd693227bbcd6183..d592a7bd6899104bf888daf594f7656cca3d2165 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/profil-counter.h
+++ b/sysdeps/unix/sysv/linux/i386/profil-counter.h
@@ -1,5 +1,5 @@
 /* Low-level statistical profiling support function.  Linux/i386 version.
-   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 2002 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
@@ -21,7 +21,12 @@
 #include <sigcontextinfo.h>
 
 static void
-profil_counter (int signo, SIGCONTEXT scp)
+profil_counter (int signo, const SIGCONTEXT scp)
 {
   profil_count ((void *) GET_PC (scp));
+
+  /* This is a hack to prevent the compiler from implementing the
+     above function call as a sibcall.  The sibcall would overwrite
+     the signal context.  */
+  asm volatile ("");
 }