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| author | Sami Tolvanen <samitolvanen@google.com> | 2020-12-11 19:46:31 +0100 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-01-14 17:21:09 +0100 |
| commit | 004d53f8c96f0a0263721494d25d6eec559268f4 (patch) | |
| tree | de50b7be1d283434f807ae0da06ac69ea7cc5797 | |
| parent | drivers/misc/lkdtm: disable LTO for rodata.o (diff) | |
| download | linux-004d53f8c96f0a0263721494d25d6eec559268f4.tar.xz linux-004d53f8c96f0a0263721494d25d6eec559268f4.zip | |
arm64: vdso: disable LTO
Disable LTO for the vDSO by filtering out CC_FLAGS_LTO, as there's no
point in using link-time optimization for the small amount of C code.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201211184633.3213045-15-samitolvanen@google.com
| -rw-r--r-- | arch/arm64/kernel/vdso/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index a8f8e409e2bf..5865ab874e28 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -30,7 +30,8 @@ ldflags-y := -shared -nostdlib -soname=linux-vdso.so.1 --hash-style=sysv \ ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18 ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO -CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) $(GCC_PLUGINS_CFLAGS) +CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) -Os $(CC_FLAGS_SCS) $(GCC_PLUGINS_CFLAGS) \ + $(CC_FLAGS_LTO) KASAN_SANITIZE := n UBSAN_SANITIZE := n OBJECT_FILES_NON_STANDARD := y |