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authorian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>2012-09-18 18:06:28 +0000
committerian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>2012-09-18 18:06:28 +0000
commit7341e544a603b629235731ade8faace5666d1180 (patch)
tree44912af377a1284ca36611f9b8acc53b753eb783 /libbacktrace/posix.c
parentd48b4b141d4e420c86aafb9f746b397bc04cfaa9 (diff)
downloadgcc-7341e544a603b629235731ade8faace5666d1180.tar.gz
* 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@191443 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libbacktrace/posix.c')
-rw-r--r--libbacktrace/posix.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/libbacktrace/posix.c b/libbacktrace/posix.c
index 0b76f1e94a1..01afc42b08e 100644
--- a/libbacktrace/posix.c
+++ b/libbacktrace/posix.c
@@ -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;
}