[PATCH v6 04/14] sparc64: vdso: Link with -z noexecstack
Thomas Weißschuh <[email protected]>
| Newsgroups | org.kernel.vger.sparclinux,dev.linux.lists.loongarch,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-kselftest,org.kernel.vger.linux-mips,org.kernel.vger.linux-s390,org.ozlabs.lists.linuxppc-dev |
|---|---|
| Message-ID | <[email protected]> |
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
Suggested-by: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]/
Fixes: 9a08862a5d2e ("vDSO for sparc")
Signed-off-by: Thomas Weißschuh <[email protected]>
Tested-by: Andreas Larsson <[email protected]>
Reviewed-by: Andreas Larsson <[email protected]>
Acked-by: Andreas Larsson <[email protected]>
---
arch/sparc/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile
index 1a4e585c91d7..2e911ccc9db7 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
--
2.53.0