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[PATCH 14/14] sparc: do not stack-protect the sigreturn handler.
- From: Nix <nix at esperi dot org dot uk>
- To: libc-alpha at sourceware dot org
- Date: Wed, 24 Feb 2016 23:28:20 +0000
- Subject: [PATCH 14/14] sparc: do not stack-protect the sigreturn handler.
- Authentication-results: sourceware.org; auth=none
- References: <1456356500-25601-1-git-send-email-nix at esperi dot org dot uk>
From: Nick Alcock <nick.alcock@oracle.com>
This is called from the kernel and must not have a canary.
v2: New.
v3: Use $(no-stack-protector).
---
sysdeps/unix/sysv/linux/sparc/sparc32/Makefile | 5 +++++
sysdeps/unix/sysv/linux/sparc/sparc64/Makefile | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
index 21c7dc1..4ca7052 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
@@ -26,3 +26,8 @@ ifeq ($(subdir),math)
# Provide these routines here as well.
libm-routines += multc3 divtc3
endif # math
+
+ifneq (,$(filter signal nptl,$(subdir)))
+# We must not stack-protect the sigreturn handler.
+CFLAGS-sigaction.c += $(no-stack-protector)
+endif # signal
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile b/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile
index 7ea433f..03a86ce 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/Makefile
@@ -12,3 +12,8 @@ ifeq ($(subdir),nptl)
CFLAGS-pause.c += -fexceptions
CFLAGS-sigsuspend.c += -fexceptions
endif
+
+ifneq (,$(filter signal nptl,$(subdir)))
+# We must not stack-protect the sigreturn handler.
+CFLAGS-sigaction.c += $(no-stack-protector)
+endif # signal
--
2.7.0.198.g6dd47b6