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sparc64: vdso: Link with -z noexecstack

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The vDSO stack does not need to be executable. Prevent the linker from
creating executable. For more background see commit ffcf9c5700 ("x86:
link vdso and boot with -z noexecstack --no-warn-rwx-segments").

Also prevent the following warning from the linker:
sparc64-linux-ld: warning: arch/sparc/vdso/vdso-note.o: missing .note.GNU-stack section implies executable stack
sparc64-linux-ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker

Fixes: 9a08862a5d ("vDSO for sparc")
Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Andreas Larsson <andreas@gaisler.com>
Reviewed-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Andreas Larsson <andreas@gaisler.com>
Link: https://lore.kernel.org/lkml/20250707144726.4008707-1-arnd@kernel.org/
Link: https://patch.msgid.link/20260304-vdso-sparc64-generic-2-v6-4-d8eb3b0e1410@linutronix.de
This commit is contained in:
Thomas Weißschuh 2026-03-04 08:49:01 +01:00 committed by Thomas Gleixner
parent 05988dba11
commit acc4f131d5
1 changed files with 1 additions and 1 deletions
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2
arch/sparc/vdso/Makefile
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@ -107,4 +107,4 @@ quiet_cmd_vdso = VDSO $@
$(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
-T $(filter %.lds,$^) $(filter %.o,$^)
VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 -Bsymbolic --no-undefined
VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 -Bsymbolic --no-undefined -z noexecstack