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ANDROID: kbuild: export LTO and CFI flags

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Export the compiler flags for LTO and CFI, so we can filter them out
elsewhere when needed.

Bug: 145297900
Change-Id: I873d0f9ebef8f510eb5b56ab2e1888324f4bb84d
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This commit is contained in:
Sami Tolvanen 2020-04-28 11:24:38 -07:00
parent 8c25f26ead
commit 194910dc6b
1 changed files with 6 additions and 6 deletions
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12
Makefile
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@ -855,11 +855,11 @@ export DISABLE_LTO_CLANG
endif
ifdef CONFIG_LTO
lto-flags := $(lto-clang-flags)
KBUILD_CFLAGS += $(lto-flags)
LTO_CFLAGS := $(lto-clang-flags)
KBUILD_CFLAGS += $(LTO_CFLAGS)
DISABLE_LTO := $(DISABLE_LTO_CLANG)
export DISABLE_LTO
export LTO_CFLAGS DISABLE_LTO
# LDFINAL_vmlinux and LDFLAGS_FINAL_vmlinux can be set to override
# the linker and flags for vmlinux_link.
@ -885,12 +885,12 @@ endif
ifdef CONFIG_CFI
# cfi-flags are re-tested in prepare-compiler-check
cfi-flags := $(cfi-clang-flags)
KBUILD_CFLAGS += $(cfi-flags)
CFI_CFLAGS := $(cfi-clang-flags)
KBUILD_CFLAGS += $(CFI_CFLAGS)
DISABLE_CFI := $(DISABLE_CFI_CLANG)
DISABLE_LTO += $(DISABLE_CFI)
export DISABLE_CFI
export CFI_CFLAGS DISABLE_CFI
endif
ifdef CONFIG_SHADOW_CALL_STACK