| From 56893a61aa4f0270fa8d1197b9848247f90fce0d 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 |
| |
| 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. |
| --- |
| gdb/ChangeLog | 5 +++++ |
| gdb/common/signals-state-save-restore.c | 2 +- |
| 2 files changed, 6 insertions(+), 1 deletion(-) |
| |
| --- a/gdbsupport/signals-state-save-restore.cc |
| +++ b/gdbsupport/signals-state-save-restore.cc |
| @@ -37,7 +37,7 @@ 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")); |
| |