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Makefile: add -Wstrict-overflow=5 to CFLAGS

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Build with strict overflow checking enabled. If the compiler optimizes
code that could be removed due to undefined signed overflow, then the
compiler will issue a warning.

Signed-off-by: William Roberts <william.c.roberts@intel.com>
This commit is contained in:
William Roberts 2018-12-13 13:30:44 -08:00
parent 97edcebd1e
commit 9fe430345a
2 changed files with 3 additions and 2 deletions
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3
libselinux/src/Makefile
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@ -64,7 +64,8 @@ ifeq ($(COMPILER), gcc)
EXTRA_CFLAGS = -fipa-pure-const -Wlogical-op -Wpacked-bitfield-compat -Wsync-nand \
-Wcoverage-mismatch -Wcpp -Wformat-contains-nul -Wnormalized=nfc -Wsuggest-attribute=const \
-Wsuggest-attribute=noreturn -Wsuggest-attribute=pure -Wtrampolines -Wjump-misses-init \
-Wno-suggest-attribute=pure -Wno-suggest-attribute=const -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
-Wno-suggest-attribute=pure -Wno-suggest-attribute=const -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 \
-Wstrict-overflow=5
else
EXTRA_CFLAGS = -Wunused-command-line-argument
endif

2
libselinux/utils/Makefile
View File

@ -33,7 +33,7 @@ CFLAGS ?= -O -Wall -W -Wundef -Wformat-y2k -Wformat-security -Winit-self -Wmissi
-Wno-format-nonliteral -Wframe-larger-than=$(MAX_STACK_SIZE) -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 \
-fstack-protector-all --param=ssp-buffer-size=4 -fexceptions \
-fasynchronous-unwind-tables -fdiagnostics-show-option -funit-at-a-time \
-Werror -Wno-aggregate-return -Wno-redundant-decls \
-Werror -Wno-aggregate-return -Wno-redundant-decls -Wstrict-overflow=5 \
$(EXTRA_CFLAGS)
LD_SONAME_FLAGS=-soname,$(LIBSO),-z,defs,-z,relro