Module: xenomai-forge
Branch: next
Commit: b9448efc82999492578788ee6e3204b04d7db003
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=b9448efc82999492578788ee6e3204b04d7db003
Author: Philippe Gerum <r...@xenomai.org>
Date: Thu Sep 11 07:35:11 2014 +0200
lib/cobalt: cope with pthread_atfork() placeholder on MMU-less
---
lib/cobalt/init.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/lib/cobalt/init.c b/lib/cobalt/init.c
index ed4cbb7..8ba9902 100644
--- a/lib/cobalt/init.c
+++ b/lib/cobalt/init.c
@@ -120,7 +120,6 @@ static void __init_cobalt(void);
void __libcobalt_init(void)
{
struct sigaction sa;
- int ret;
low_init();
@@ -129,16 +128,21 @@ void __libcobalt_init(void)
sa.sa_flags = SA_SIGINFO;
sigaction(SIGDEBUG, &sa, &__cobalt_orig_sigdebug);
+#ifdef HAVE_PTHREAD_ATFORK
/*
* Upon fork, in case the parent required init deferral, this
* is the forkee's responsibility to call __libcobalt_init()
- * for bootstrapping the services the same way.
+ * for bootstrapping the services the same way. On systems
+ * with no fork() support, clients are not supposed to, well,
+ * fork in the first place, so we don't take any provision for
+ * this event.
+ *
+ * NOTE: a placeholder for pthread_atfork() may return an
+ * error status with uClibc, so we don't check the return
+ * value on purpose.
*/
- ret = pthread_atfork(NULL, NULL, __init_cobalt);
- if (ret) {
- report_error("pthread_atfork: %s", strerror(ret));
- exit(EXIT_FAILURE);
- }
+ pthread_atfork(NULL, NULL, __init_cobalt);
+#endif
if (sizeof(struct cobalt_mutex_shadow) > sizeof(pthread_mutex_t)) {
report_error("sizeof(pthread_mutex_t): %d <"
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