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| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2026-03-04 08:49:01 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@kernel.org> | 2026-03-11 10:18:30 +0100 |
| commit | acc4f131d5d57c2aa89db914aeb6f7bb0ab4eb4a (patch) | |
| tree | 7a7cd67aee2aab390828c6c964e5b7b07763a5ab /arch/sparc | |
| parent | 05988dba11791ccbb458254484826b32f17f4ad2 (diff) | |
| download | lwn-acc4f131d5d57c2aa89db914aeb6f7bb0ab4eb4a.tar.gz lwn-acc4f131d5d57c2aa89db914aeb6f7bb0ab4eb4a.zip | |
sparc64: vdso: Link with -z noexecstack
The vDSO stack does not need to be executable. Prevent the linker from
creating executable. For more background see commit ffcf9c5700e4 ("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: 9a08862a5d2e ("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
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/vdso/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index d2811f17af07..aaef9174f375 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -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 |