mdadm/0131-Makefile-add-more-compiler-flags.patch
Xiao Ni aba27b5983 Update to latest upstream
Fix coverity issue 34533 and  /dev/md symlink not created for second RAID container
issue 50776

Resolves: RHEL-34533, RHEL50776

Signed-off-by: Xiao Ni <xni@redhat.com>
2024-08-10 23:06:32 -04:00

62 lines
1.9 KiB
Diff

From 93c5215677a71e9772f68a449533cb3c97d2b869 Mon Sep 17 00:00:00 2001
From: Kinga Stefaniuk <kinga.stefaniuk@intel.com>
Date: Thu, 4 Jul 2024 15:01:06 +0200
Subject: [PATCH 131/157] Makefile: add more compiler flags
It is essential to avoid vulnerabilities in code as much
as possible using safe compilation flags. It is easier if
they are added to the Makefile and applied during compilation.
Add new gcc flags and make them configurable, because they
may not be supported for some compilers.
Set FORTIFY_SOURCE with the highest supported value for platform.
Signed-off-by: Kinga Stefaniuk <kinga.stefaniuk@intel.com>
---
Makefile | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index 3fe0a053..a914b178 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,7 @@
# define "CXFLAGS" to give extra flags to CC.
# e.g. make CXFLAGS=-O to optimise
-CXFLAGS ?=-O2 -D_FORTIFY_SOURCE=2
+CXFLAGS ?=-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE
TCC = tcc
UCLIBC_GCC = $(shell for nm in i386-uclibc-linux-gcc i386-uclibc-gcc; do which $$nm > /dev/null && { echo $$nm ; exit; } ; done; echo false No uclibc found )
#DIET_GCC = diet gcc
@@ -76,6 +76,27 @@ ifeq ($(origin STRINGOPOVERFLOW), undefined)
endif
endif
+ifeq ($(origin NOSTRICTOVERFLOW), undefined)
+ NOSTRICTOVERFLOW := $(shell $(CC) -Q --help=warning 2>&1 | grep "strict-overflow" | wc -l)
+ ifneq "$(NOSTRICTOVERFLOW)" "0"
+ CWFLAGS += -fno-strict-overflow
+ endif
+endif
+
+ifeq ($(origin NODELETENULLPOINTER), undefined)
+ NODELETENULLPOINTER := $(shell $(CC) -Q --help=optimizers 2>&1 | grep "delete-null-pointer-checks" | wc -l)
+ ifneq "$(NODELETENULLPOINTER)" "0"
+ CWFLAGS += -fno-delete-null-pointer-checks
+ endif
+endif
+
+ifeq ($(origin WRAPV), undefined)
+ WRAPV := $(shell $(CC) -Q --help=optimizers 2>&1 | grep "wrapv" | wc -l)
+ ifneq "$(WRAPV)" "0"
+ CWFLAGS += -fwrapv
+ endif
+endif
+
ifdef DEBIAN
CPPFLAGS += -DDEBIAN
endif
--
2.41.0