From 696891f6c5a1c6acab95dffd8c1d3a986ca71a18 Mon Sep 17 00:00:00 2001 From: Yousong Zhou Date: Fri, 24 Mar 2017 10:36:03 +0800 Subject: [PATCH] Fix invalid sigprocmask call MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 * 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 Signed-off-by: Khem Raj --- 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"));