From: Thomas Weißschuh Date: Wed, 4 Mar 2026 07:49:01 +0000 (+0100) Subject: sparc64: vdso: Link with -z noexecstack X-Git-Tag: v7.1-rc1~201^2~41 X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=acc4f131d5d57c2aa89db914aeb6f7bb0ab4eb4a;p=thirdparty%2Fkernel%2Flinux.git 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 Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Tested-by: Andreas Larsson Reviewed-by: Andreas Larsson Acked-by: Andreas Larsson 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 --- diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index d2811f17af078..aaef9174f3756 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