55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Copyright (C) 1996 Free Software Foundation, Inc.
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Contributed by David Mosberger (davidm@cs.arizona.edu).
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/* __bb_init_func is invoked at the beginning of each function, before
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any registers have been saved. This generic routine should work
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provided that calling this function doesn't mangle the arguments
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passed to the function being called. If that's not the case, a system
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specific routine must be provided. */
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#include <sys/types.h>
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#include <sys/gmon.h>
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#include <ansidecl.h>
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#include <stdlib.h>
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void
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DEFUN(__bb_init_func, (bb), struct __bb *bb)
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{
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struct gmonparam *p = &_gmonparam;
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if (bb->zero_word != 0)
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{
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return; /* handle common case quickly */
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}
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/* insert this basic-block into basic-block list: */
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bb->zero_word = 1;
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bb->next = __bb_head;
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__bb_head = bb;
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if (bb->next == 0 && p->state != GMON_PROF_ON)
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{
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/* we didn't register _mcleanup yet and pc profiling doesn't seem
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to be active, so let's register it now: */
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atexit(_mcleanup);
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}
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}
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