/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
-/* Define to 1 if pthread.h is present. */
-#undef HAVE_PTHREAD_H
+/* Define if the system provides pthread locking mechanism. */
+#undef HAVE_PTHREAD_LOCKING
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
# Check for thread headers.
-ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
+use_locking=no
+
+case $target in
+ riscv*)
+ # do not use locking as pthread depends on libatomic
+ ;;
+ *-linux*)
+ use_locking=yes
+ ;;
+esac
+
+if test x$use_locking = xyes; then
+ ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_pthread_h" = xyes; then :
-$as_echo "#define HAVE_PTHREAD_H 1" >>confdefs.h
+$as_echo "#define HAVE_PTHREAD_LOCKING 1" >>confdefs.h
fi
+fi
case `pwd` in
*\ * | *\ *)
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12094 "configure"
+#line 12107 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12200 "configure"
+#line 12213 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER_SUN, [test "x$lto_plugin_use_symver" = xsun])
# Check for thread headers.
-AC_CHECK_HEADER(pthread.h,
- [AC_DEFINE(HAVE_PTHREAD_H, 1, [Define to 1 if pthread.h is present.])])
+use_locking=no
+
+case $target in
+ riscv*)
+ # do not use locking as pthread depends on libatomic
+ ;;
+ *-linux*)
+ use_locking=yes
+ ;;
+esac
+
+if test x$use_locking = xyes; then
+ AC_CHECK_HEADER(pthread.h,
+ [AC_DEFINE(HAVE_PTHREAD_LOCKING, 1, [Define if the system provides pthread locking mechanism.])])
+fi
AM_PROG_LIBTOOL
ACX_LT_HOST_FLAGS
#ifdef HAVE_CONFIG_H
#include "config.h"
-#if !HAVE_PTHREAD_H
-#error POSIX threads are mandatory dependency
#endif
-#endif
-
#if HAVE_STDINT_H
#include <stdint.h>
#endif
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
+#if HAVE_PTHREAD_LOCKING
#include <pthread.h>
+#endif
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
ss_uscore, /* Underscore prefix all symbols. */
};
+#if HAVE_PTHREAD_LOCKING
/* Plug-in mutex. */
static pthread_mutex_t plugin_lock;
+#define LOCK_SECTION pthread_mutex_lock (&plugin_lock)
+#define UNLOCK_SECTION pthread_mutex_unlock (&plugin_lock)
+#else
+#define LOCK_SECTION
+#define UNLOCK_SECTION
+#endif
+
static char *arguments_file_name;
static ld_plugin_register_claim_file register_claim_file;
static ld_plugin_register_all_symbols_read register_all_symbols_read;
lto_file.symtab.syms);
check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
- pthread_mutex_lock (&plugin_lock);
+ LOCK_SECTION;
num_claimed_files++;
claimed_files =
xrealloc (claimed_files,
num_claimed_files * sizeof (struct plugin_file_info));
claimed_files[num_claimed_files - 1] = lto_file;
- pthread_mutex_unlock (&plugin_lock);
+ UNLOCK_SECTION;
*claimed = 1;
}
- pthread_mutex_lock (&plugin_lock);
+ LOCK_SECTION;
if (offload_files == NULL)
{
/* Add dummy item to the start of the list. */
offload_files_last_lto = ofld;
num_offload_files++;
}
- pthread_mutex_unlock (&plugin_lock);
+
+ UNLOCK_SECTION;
goto cleanup;
err:
- pthread_mutex_lock (&plugin_lock);
+ LOCK_SECTION;
non_claimed_files++;
- pthread_mutex_unlock (&plugin_lock);
+ UNLOCK_SECTION;
free (lto_file.name);
cleanup:
struct ld_plugin_tv *p;
enum ld_plugin_status status;
+#if HAVE_PTHREAD_LOCKING
if (pthread_mutex_init (&plugin_lock, NULL) != 0)
{
fprintf (stderr, "mutex init failed\n");
abort ();
}
+#endif
p = tv;
while (p->tv_tag)