Home Explore Help
Sign In
GfA
/
linux_kernel
5
0
Fork 0
Files Issues 0 Pull Requests 0 Wiki
Browse Source

powerpc: Fix stackprotector detection for non-glibc toolchains

If GCC is not built with glibc support then we must explicitly tell it
which register to use for TLS mode stack protector, otherwise it will
error out and the cc-option check will fail.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman 6 years ago
parent
50530f5eac
commit
bf6cbd0c87
1 changed files with 2 additions and 1 deletions
Split View Show Diff Stats
  1. 2 1
      arch/powerpc/Kconfig

+ 2 - 1
arch/powerpc/Kconfig
View File 

@@ -180,7 +180,8 @@ config PPC
 
 	select HAVE_ARCH_SECCOMP_FILTER
 
 	select HAVE_ARCH_TRACEHOOK
 
 	select HAVE_CBPF_JIT			if !PPC64
 
-	select HAVE_STACKPROTECTOR		if $(cc-option,-mstack-protector-guard=tls)
 
+	select HAVE_STACKPROTECTOR		if PPC64 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r13)
 
+	select HAVE_STACKPROTECTOR		if PPC32 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r2)
 
 	select HAVE_CONTEXT_TRACKING		if PPC64
 
 	select HAVE_DEBUG_KMEMLEAK
 
 	select HAVE_DEBUG_STACKOVERFLOW