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| author | Joey Gouly <joey.gouly@arm.com> | 2022-05-10 12:58:32 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-06-23 17:34:59 +0300 |
| commit | e0ab20b20a1bb53d61feedb1fd6c23cbbed11d18 (patch) | |
| tree | db7446ea38a63e23d88f32932cf344e7e077b049 | |
| parent | b87d34ca60cedd6ad769da69c39c4329647fc6a9 (diff) | |
| download | linux-e0ab20b20a1bb53d61feedb1fd6c23cbbed11d18.tar.xz | |
arm64: vdso: enable orphan handling for VDSO
Like vmlinux, enable orphan-handling for the VDSO. This can catch
subtle errors that might arise from unexpected sections being included.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20220510095834.32394-3-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/vdso/Makefile | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile index f6e25d7c346a..bafbf78fab77 100644 --- a/arch/arm64/kernel/vdso/Makefile +++ b/arch/arm64/kernel/vdso/Makefile @@ -24,7 +24,13 @@ btildflags-$(CONFIG_ARM64_BTI_KERNEL) += -z force-bti # routines, as x86 does (see 6f121e548f83 ("x86, vdso: Reimplement vdso.so # preparation in build-time C")). ldflags-y := -shared -soname=linux-vdso.so.1 --hash-style=sysv \ - -Bsymbolic --build-id=sha1 -n $(btildflags-y) -T + -Bsymbolic --build-id=sha1 -n $(btildflags-y) + +ifdef CONFIG_LD_ORPHAN_WARN + ldflags-y += --orphan-handling=warn +endif + +ldflags-y += -T ccflags-y := -fno-common -fno-builtin -fno-stack-protector -ffixed-x18 ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO |