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gcc requires -static-libasan in order to ensure that Address Sanitizer's
library is the first one loaded. However, this leads to build failures
on clang, when building via:
make LLVM=1 -C tools/testing/selftests
However, clang already does the right thing by default: it statically
links the Address Sanitizer if -fsanitize is specified. Therefore,
simply omit -static-libasan for clang builds. And leave behind a
comment, because the whole reason for static linking might not be
obvious.
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
16 lines
492 B
Makefile
16 lines
492 B
Makefile
# SPDX-License-Identifier: GPL-2.0-or-later
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CFLAGS += -Wall -O2 -g -fsanitize=address -fsanitize=undefined $(KHDR_INCLUDES)
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# gcc requires -static-libasan in order to ensure that Address Sanitizer's
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# library is the first one loaded. However, clang already statically links the
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# Address Sanitizer if -fsanitize is specified. Therefore, simply omit
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# -static-libasan for clang builds.
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ifeq ($(LLVM),)
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CFLAGS += -static-libasan
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endif
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TEST_GEN_PROGS := fchmodat2_test
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include ../lib.mk
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