mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/* Profile PC and write result to FIFO.
|
|
Copyright (C) 1999-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
|
|
|
|
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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
/* Nonzero if we are actually doing something. */
|
|
static int active;
|
|
|
|
/* The file descriptor of the FIFO. */
|
|
static int fd;
|
|
|
|
|
|
static void
|
|
__attribute__ ((constructor))
|
|
install (void)
|
|
{
|
|
/* See whether the environment variable `PCPROFILE_OUTPUT' is defined.
|
|
If yes, it should name a FIFO. We open it and mark ourself as active. */
|
|
const char *outfile = getenv ("PCPROFILE_OUTPUT");
|
|
|
|
if (outfile != NULL && *outfile != '\0')
|
|
{
|
|
fd = open (outfile, O_RDWR | O_CREAT, 0666);
|
|
|
|
if (fd != -1)
|
|
{
|
|
uint32_t word;
|
|
|
|
active = 1;
|
|
|
|
/* Write a magic word which tells the reader about the byte
|
|
order and the size of the following entries. */
|
|
word = 0xdeb00000 | sizeof (void *);
|
|
if (TEMP_FAILURE_RETRY (write (fd, &word, 4)) != 4)
|
|
{
|
|
/* If even this fails we shouldn't try further. */
|
|
close (fd);
|
|
fd = -1;
|
|
active = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
__attribute__ ((destructor))
|
|
uninstall (void)
|
|
{
|
|
if (active)
|
|
close (fd);
|
|
}
|
|
|
|
|
|
void
|
|
__cyg_profile_func_enter (void *this_fn, void *call_site)
|
|
{
|
|
void *buf[2];
|
|
|
|
if (! active)
|
|
return;
|
|
|
|
/* Now write out the current position and that of the caller. We do
|
|
this now, and don't cache the because we want real-time output. */
|
|
buf[0] = this_fn;
|
|
buf[1] = call_site;
|
|
|
|
write (fd, buf, sizeof buf);
|
|
}
|
|
/* We don't handle entry and exit differently here. */
|
|
strong_alias (__cyg_profile_func_enter, __cyg_profile_func_exit)
|