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arm64/vdso: Remove --hash-style=sysv

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glibc added support for .gnu.hash in 2006 and .hash has been obsoleted
for more than one decade in many Linux distributions.  Using
--hash-style=sysv might imply unaddressed issues and confuse readers.

Just drop the option and rely on the linker default, which is likely
"both", or "gnu" when the distribution really wants to eliminate sysv
hash overhead.

Similar to commit 6b7e26547f ("x86/vdso: Emit a GNU hash").

Signed-off-by: Fangrui Song <maskray@google.com>
Link: https://lore.kernel.org/r/20240718173423.1574395-1-maskray@google.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Fangrui Song 2024-07-18 10:34:23 -07:00 committed by Will Deacon
parent 0c35e3bd41
commit 48f6430505
2 changed files with 2 additions and 2 deletions
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2
arch/arm64/kernel/vdso/Makefile
View File

@ -21,7 +21,7 @@ btildflags-$(CONFIG_ARM64_BTI_KERNEL) += -z force-bti
# potential future proofing if we end up with internal calls to the exported
# 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 \
ldflags-y := -shared -soname=linux-vdso.so.1 \
-Bsymbolic --build-id=sha1 -n $(btildflags-y)
ifdef CONFIG_LD_ORPHAN_WARN

2
arch/arm64/kernel/vdso32/Makefile
View File

@ -98,7 +98,7 @@ VDSO_AFLAGS += -D__ASSEMBLY__
# From arm vDSO Makefile
VDSO_LDFLAGS += -Bsymbolic --no-undefined -soname=linux-vdso.so.1
VDSO_LDFLAGS += -z max-page-size=4096 -z common-page-size=4096
VDSO_LDFLAGS += -shared --hash-style=sysv --build-id=sha1
VDSO_LDFLAGS += -shared --build-id=sha1
VDSO_LDFLAGS += --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL)