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-rw-r--r--libgfortran/ChangeLog10
-rw-r--r--libgfortran/Makefile.in1
-rw-r--r--libgfortran/config.h.in3
-rwxr-xr-xlibgfortran/configure31
-rw-r--r--libgfortran/configure.ac2
-rw-r--r--libgfortran/intrinsics/execute_command_line.c18
6 files changed, 52 insertions, 13 deletions
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index fa87b0d..e0bf369 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,13 @@
+2019-05-17 Janne Blomqvist <jb@gcc.gnu.org>
+
+ PR libfortran/90038
+ * configure.ac (AC_CHECK_FUNCS_ONCE): Check for posix_spawn.
+ * intrinsics/execute_command_line (execute_command_line): Use
+ posix_spawn.
+ * Makefile.in: Regenerated.
+ * config.h.in: Regenerated.
+ * configure: Regenerated.
+
2019-05-17 Jakub Jelinek <jakub@redhat.com>
PR fortran/54613
diff --git a/libgfortran/Makefile.in b/libgfortran/Makefile.in
index 954f9fe..6e9612d 100644
--- a/libgfortran/Makefile.in
+++ b/libgfortran/Makefile.in
@@ -694,6 +694,7 @@ pdfdir = @pdfdir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
+runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
diff --git a/libgfortran/config.h.in b/libgfortran/config.h.in
index cbd720a..da3968c 100644
--- a/libgfortran/config.h.in
+++ b/libgfortran/config.h.in
@@ -627,6 +627,9 @@
/* Define to 1 if we have POSIX getpwuid_r which takes 5 arguments. */
#undef HAVE_POSIX_GETPWUID_R
+/* Define to 1 if you have the `posix_spawn' function. */
+#undef HAVE_POSIX_SPAWN
+
/* Define to 1 if you have the `pow' function. */
#undef HAVE_POW
diff --git a/libgfortran/configure b/libgfortran/configure
index 487d8c0..094c732 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -780,6 +780,7 @@ infodir
docdir
oldincludedir
includedir
+runstatedir
localstatedir
sharedstatedir
sysconfdir
@@ -870,6 +871,7 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1122,6 +1124,15 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
+ -runstatedir | --runstatedir | --runstatedi | --runstated \
+ | --runstate | --runstat | --runsta | --runst | --runs \
+ | --run | --ru | --r)
+ ac_prev=runstatedir ;;
+ -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+ | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+ | --run=* | --ru=* | --r=*)
+ runstatedir=$ac_optarg ;;
+
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1259,7 +1270,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir
+ libdir localedir mandir runstatedir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@@ -1412,6 +1423,7 @@ Fine tuning of the installation directories:
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@@ -2629,6 +2641,7 @@ as_fn_append ac_func_list " ttyname"
as_fn_append ac_func_list " alarm"
as_fn_append ac_func_list " access"
as_fn_append ac_func_list " fork"
+as_fn_append ac_func_list " posix_spawn"
as_fn_append ac_func_list " setmode"
as_fn_append ac_func_list " fcntl"
as_fn_append ac_func_list " writev"
@@ -12685,7 +12698,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12688 "configure"
+#line 12701 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12791,7 +12804,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12794 "configure"
+#line 12807 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -16040,7 +16053,7 @@ else
We can't simply define LARGE_OFF_T to be 9223372036854775807,
since some C++ compilers masquerading as C compilers
incorrectly reject 9223372036854775807. */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
&& LARGE_OFF_T % 2147483647 == 1)
? 1 : -1];
@@ -16086,7 +16099,7 @@ else
We can't simply define LARGE_OFF_T to be 9223372036854775807,
since some C++ compilers masquerading as C compilers
incorrectly reject 9223372036854775807. */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
&& LARGE_OFF_T % 2147483647 == 1)
? 1 : -1];
@@ -16110,7 +16123,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
We can't simply define LARGE_OFF_T to be 9223372036854775807,
since some C++ compilers masquerading as C compilers
incorrectly reject 9223372036854775807. */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
&& LARGE_OFF_T % 2147483647 == 1)
? 1 : -1];
@@ -16155,7 +16168,7 @@ else
We can't simply define LARGE_OFF_T to be 9223372036854775807,
since some C++ compilers masquerading as C compilers
incorrectly reject 9223372036854775807. */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
&& LARGE_OFF_T % 2147483647 == 1)
? 1 : -1];
@@ -16179,7 +16192,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
We can't simply define LARGE_OFF_T to be 9223372036854775807,
since some C++ compilers masquerading as C compilers
incorrectly reject 9223372036854775807. */
-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
&& LARGE_OFF_T % 2147483647 == 1)
? 1 : -1];
@@ -16961,6 +16974,8 @@ done
+
+
fi
# Check strerror_r, cannot be above as versions with two and three arguments exist
diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
index c06db7b..8fd5a1a 100644
--- a/libgfortran/configure.ac
+++ b/libgfortran/configure.ac
@@ -315,7 +315,7 @@ else
AC_CHECK_FUNCS_ONCE(getrusage times mkstemp strtof strtold snprintf \
ftruncate chsize chdir getentropy getlogin gethostname kill link symlink \
sleep ttyname \
- alarm access fork setmode fcntl writev \
+ alarm access fork posix_spawn setmode fcntl writev \
gettimeofday stat fstat lstat getpwuid vsnprintf dup \
getcwd localtime_r gmtime_r getpwuid_r ttyname_r clock_gettime \
getgid getpid getuid geteuid umask getegid \
diff --git a/libgfortran/intrinsics/execute_command_line.c b/libgfortran/intrinsics/execute_command_line.c
index a234bc3..2ef2324 100644
--- a/libgfortran/intrinsics/execute_command_line.c
+++ b/libgfortran/intrinsics/execute_command_line.c
@@ -32,7 +32,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
-
+#ifdef HAVE_POSIX_SPAWN
+#include <spawn.h>
+extern char **environ;
+#endif
enum { EXEC_SYNCHRONOUS = -2, EXEC_NOERROR = 0, EXEC_SYSTEMFAILED,
EXEC_CHILDFAILED, EXEC_INVALIDCOMMAND };
@@ -71,7 +74,7 @@ execute_command_line (const char *command, bool wait, int *exitstat,
/* Flush all I/O units before executing the command. */
flush_all_units();
-#if defined(HAVE_FORK)
+#if defined(HAVE_POSIX_SPAWN) || defined(HAVE_FORK)
if (!wait)
{
/* Asynchronous execution. */
@@ -79,14 +82,21 @@ execute_command_line (const char *command, bool wait, int *exitstat,
set_cmdstat (cmdstat, EXEC_NOERROR);
- if ((pid = fork()) < 0)
+#ifdef HAVE_POSIX_SPAWN
+ const char * const argv[] = {"sh", "-c", cmd, NULL};
+ if (posix_spawn (&pid, "/bin/sh", NULL, NULL,
+ (char * const* restrict) argv, environ))
set_cmdstat (cmdstat, EXEC_CHILDFAILED);
+#elif defined(HAVE_FORK)
+ if ((pid = fork()) < 0)
+ set_cmdstat (cmdstat, EXEC_CHILDFAILED);
else if (pid == 0)
{
/* Child process. */
int res = system (cmd);
_exit (WIFEXITED(res) ? WEXITSTATUS(res) : res);
}
+#endif
}
else
#endif
@@ -96,7 +106,7 @@ execute_command_line (const char *command, bool wait, int *exitstat,
if (res == -1)
set_cmdstat (cmdstat, EXEC_SYSTEMFAILED);
-#ifndef HAVE_FORK
+#if !defined(HAVE_POSIX_SPAWN) && !defined(HAVE_FORK)
else if (!wait)
set_cmdstat (cmdstat, EXEC_SYNCHRONOUS);
#endif