mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 11:20:07 +00:00
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by David Mosberger (davidm@cs.arizona.edu).
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* __bb_init_func is invoked at the beginning of each function, before
|
|
any registers have been saved. This generic routine should work
|
|
provided that calling this function doesn't mangle the arguments
|
|
passed to the function being called. If that's not the case, a
|
|
system specific routine must be provided. */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/gmon.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
void
|
|
__bb_init_func (struct __bb *bb)
|
|
{
|
|
struct gmonparam *p = &_gmonparam;
|
|
|
|
if (bb->zero_word != 0)
|
|
{
|
|
return; /* handle common case quickly */
|
|
}
|
|
|
|
/* insert this basic-block into basic-block list: */
|
|
bb->zero_word = 1;
|
|
bb->next = __bb_head;
|
|
__bb_head = bb;
|
|
|
|
if (bb->next == 0 && p->state != GMON_PROF_ON)
|
|
{
|
|
/* we didn't register _mcleanup yet and pc profiling doesn't seem
|
|
to be active, so let's register it now: */
|
|
extern void *__dso_handle __attribute__ ((__weak__));
|
|
__cxa_atexit ((void (*) (void *)) _mcleanup, NULL,
|
|
&__dso_handle ? __dso_handle : NULL);
|
|
}
|
|
}
|