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gdb: fix invalid sigprocmask call

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Fixes FS#637

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This commit is contained in:
Yousong Zhou 2017-03-24 10:37:08 +08:00
parent 597c9f0be5
commit 46e390322a
2 changed files with 44 additions and 1 deletions
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2
package/devel/gdb/Makefile
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@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=gdb PKG_NAME:=gdb
PKG_VERSION:=7.12.1 PKG_VERSION:=7.12.1
PKG_RELEASE:=1 PKG_RELEASE:=2
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=@GNU/gdb PKG_SOURCE_URL:=@GNU/gdb

43
package/devel/gdb/patches/120-sigprocmask-invalid-call.patch Normal file
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@ -0,0 +1,43 @@
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(-)
diff --git a/gdb/common/signals-state-save-restore.c b/gdb/common/signals-state-save-restore.c
index d11a9ae..734335c 100644
--- a/gdb/common/signals-state-save-restore.c
+++ b/gdb/common/signals-state-save-restore.c
@@ -41,7 +41,7 @@ save_original_signals_state (void)
int i;
int res;
- res = sigprocmask (0, NULL, &original_signal_mask);
+ res = sigprocmask (SIG_BLOCK, NULL, &original_signal_mask);
if (res == -1)
perror_with_name (("sigprocmask"));
--
2.6.4