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

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This commit is contained in:
Ulrich Drepper 2002-10-14 17:26:14 +00:00
parent f51d253191
commit 75380e2be2
1 changed files with 6 additions and 1 deletions
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7
sysdeps/unix/sysv/linux/arm/profil-counter.h
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@ -1,5 +1,5 @@
/* Low-level statistical profiling support function. Linux/ARM 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
@ -29,4 +29,9 @@ profil_counter (int signo, int _a2, int _a3, int _a4, union k_sigcontext sc)
else
pc = (void *) sc.v21.arm_pc;
profil_count (pc);
/* 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 ("");
}