package/devel/gdb/patches/120-sigprocmask-invalid-call.patch

   1 From 56893a61aa4f0270fa8d1197b9848247f90fce0d Mon Sep 17 00:00:00 2001
   2 From: Yousong Zhou <yszhou4tech@gmail.com>
   3 Date: Fri, 24 Mar 2017 10:36:03 +0800
   4 Subject: [PATCH] Fix invalid sigprocmask call
   5
   6 The POSIX document says
   7
   8     The pthread_sigmask() and sigprocmask() functions shall fail if:
   9
  10     [EINVAL]
  11     The value of the how argument is not equal to one of the defined values.
  12
  13 and this is how musl-libc is currently doing.  Fix the call to be safe
  14 and correct
  15
  16  [1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_sigmask.html
  17
  18 gdb/ChangeLog:
  19 2017-03-24  Yousong Zhou  <yszhou4tech@gmail.com>
  20
  21     * common/signals-state-save-restore.c (save_original_signals_state):
  22     Fix invalid sigprocmask call.
  23 ---
  24  gdb/ChangeLog                           | 5 +++++
  25  gdb/common/signals-state-save-restore.c | 2 +-
  26  2 files changed, 6 insertions(+), 1 deletion(-)
  27
  28 --- a/gdb/common/signals-state-save-restore.c
  29 +++ b/gdb/common/signals-state-save-restore.c
  30 @@ -41,7 +41,7 @@ save_original_signals_state (void)
  31    int i;
  32    int res;
  33
  34 -  res = sigprocmask (0,  NULL, &original_signal_mask);
  35 +  res = sigprocmask (SIG_BLOCK,  NULL, &original_signal_mask);
  36    if (res == -1)
  37      perror_with_name (("sigprocmask"));
  38