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From ebeb6125acf6b4e4a8a4eaa59e2830b9ca02d683 Mon Sep 17 00:00:00 2001
From: Yousong Zhou <yszhou4tech@gmail.com>
Date: Fri, 24 Mar 2017 10:36:03 +0800
Subject: [PATCH] Fix invalid sigprocmask call
MIME-Version: 1.0
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The POSIX document says
The pthread_sigmask() and sigprocmask() functions shall fail if:
[EINVAL]
The value of the how argument is not equal to one of the defined values.
and this is how musl-libc is currently doing. Fix the call to be safe
and correct
[1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_sigmask.html
gdb/ChangeLog:
2017-03-24 Yousong Zhou <yszhou4tech@gmail.com>
* common/signals-state-save-restore.c (save_original_signals_state):
Fix invalid sigprocmask call.
Upstream-Status: Pending [not author, cherry-picked from LEDE https://bugs.lede-project.org/index.php?do=details&task_id=637&openedfrom=-1%2Bweek]
Signed-off-by: André Draszik <adraszik@tycoint.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
gdbsupport/signals-state-save-restore.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gdbsupport/signals-state-save-restore.cc b/gdbsupport/signals-state-save-restore.cc
index 3ec7a259c9c..0702eca7725 100644
--- a/gdbsupport/signals-state-save-restore.cc
+++ b/gdbsupport/signals-state-save-restore.cc
@@ -38,7 +38,7 @@ save_original_signals_state (bool quiet)
int i;
int res;
- res = gdb_sigmask (0, NULL, &original_signal_mask);
+ res = gdb_sigmask (SIG_BLOCK, NULL, &original_signal_mask);
if (res == -1)
perror_with_name (("sigprocmask"));
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