mirrors/gcc
1
0
Fork 0
mirror of https://gcc.gnu.org/git/gcc.git synced 2024-11-23 10:54:07 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

posix.c (O_BINARY): Define if not defined.

Browse Source 
* posix.c (O_BINARY): Define if not defined.
	(backtrace_open): Pass O_BINARY to open.  Only call fcntl if
	HAVE_FCNTL is defined.
	* configure.ac: Test for the fcntl function.
	* configure, config.h.in: Rebuild.

From-SVN: r191443
This commit is contained in:
Ian Lance Taylor 2012-09-18 18:06:28 +00:00 committed by Ian Lance Taylor
parent bd3e497d0b
commit 3319ef17d2
5 changed files with 53 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libbacktrace/ChangeLog
View File

@ -1,3 +1,11 @@
2012-09-18 Ian Lance Taylor <iant@google.com>
* posix.c (O_BINARY): Define if not defined.
(backtrace_open): Pass O_BINARY to open. Only call fcntl if
HAVE_FCNTL is defined.
* configure.ac: Test for the fcntl function.
* configure, config.h.in: Rebuild.
2012-09-18 Ian Lance Taylor <iant@google.com>
* btest.c (test1, test2, test3, test4): Add the unused attribute.

3
libbacktrace/config.h.in
View File

@ -10,6 +10,9 @@
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H
/* Define to 1 if you have the fcntl function */
#undef HAVE_FCNTL
/* Define if _Unwind_GetIPInfo is available. */
#undef HAVE_GETIPINFO

21
libbacktrace/configure vendored
View File

@ -11713,6 +11713,27 @@ if test "$ALLOC_FILE" = "alloc.lo"; then
fi
# Check for the fcntl function.
if test -n "${with_target_subdir}"; then
case "${host}" in
*-*-mingw*) have_fcntl=no ;;
*) have_fcntl=yes ;;
esac
else
ac_fn_c_check_func "$LINENO" "fcntl" "ac_cv_func_fcntl"
if test "x$ac_cv_func_fcntl" = x""yes; then :
have_fcntl=yes
else
have_fcntl=no
fi
fi
if test "$have_fcntl" = "yes"; then
$as_echo "#define HAVE_FCNTL 1" >>confdefs.h
fi
ac_fn_c_check_decl "$LINENO" "strnlen" "ac_cv_have_decl_strnlen" "$ac_includes_default"
if test "x$ac_cv_have_decl_strnlen" = x""yes; then :
ac_have_decl=1

14
libbacktrace/configure.ac
View File

@ -201,6 +201,20 @@ if test "$ALLOC_FILE" = "alloc.lo"; then
fi
AC_SUBST(BACKTRACE_USES_MALLOC)
# Check for the fcntl function.
if test -n "${with_target_subdir}"; then
case "${host}" in
*-*-mingw*) have_fcntl=no ;;
*) have_fcntl=yes ;;
esac
else
AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
fi
if test "$have_fcntl" = "yes"; then
AC_DEFINE([HAVE_FCNTL], 1,
[Define to 1 if you have the fcntl function])
fi
AC_CHECK_DECLS(strnlen)
AC_CACHE_CHECK([whether tests can run],

8
libbacktrace/posix.c
View File

@ -41,6 +41,10 @@ POSSIBILITY OF SUCH DAMAGE. */
#include "backtrace.h"
#include "internal.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#endif
@ -57,18 +61,20 @@ backtrace_open (const char *filename, backtrace_error_callback error_callback,
{
int descriptor;
descriptor = open (filename, O_RDONLY | O_CLOEXEC);
descriptor = open (filename, O_RDONLY | O_BINARY | O_CLOEXEC);
if (descriptor < 0)
{
error_callback (data, filename, errno);
return -1;
}
#ifdef HAVE_FCNTL
/* Set FD_CLOEXEC just in case the kernel does not support
O_CLOEXEC. It doesn't matter if this fails for some reason.
FIXME: At some point it should be safe to only do this if
O_CLOEXEC == 0. */
fcntl (descriptor, F_SETFD, FD_CLOEXEC);
#endif
return descriptor;
}