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libsemanage/Makefile: add -fno-semantic-interposition

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Add -fno-semantic-interposition to CFLAGS. This will restore
the DSO infrastructures protections to insure internal callers
of exported symbols call into libselinux and not something loading first
in the library list.

Clang has this enabled by default.

Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: William Roberts <william.c.roberts@intel.com>
This commit is contained in:
William Roberts 2020-03-23 12:20:39 -05:00
parent 653ee4de68
commit 1de9a257a0
1 changed files with 2 additions and 1 deletions
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3
libsemanage/src/Makefile
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@ -53,7 +53,8 @@ SRCS= $(filter-out $(GENERATED),$(sort $(wildcard *.c)))
OBJS= $(patsubst %.c,%.o,$(SRCS)) conf-scan.o conf-parse.o
LOBJS= $(patsubst %.c,%.lo,$(SRCS)) conf-scan.lo conf-parse.lo
CFLAGS ?= -Werror -Wall -W -Wundef -Wshadow -Wmissing-noreturn -Wmissing-format-attribute
CFLAGS ?= -Werror -Wall -W -Wundef -Wshadow -Wmissing-noreturn -Wmissing-format-attribute \
-fno-semantic-interposition
SWIG_CFLAGS += -Wno-error -Wno-unused-but-set-variable -Wno-unused-variable -Wno-shadow \
-Wno-unused-parameter