[GIT PULL] x86 fix

From: Ingo Molnar
Date: Sat Sep 28 2019 - 08:42:54 EST


Linus,

Please pull the latest x86-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

# HEAD: ca14c996afe7228ff9b480cf225211cc17212688 x86/purgatory: Disable the stackleak GCC plugin for the purgatory

A kexec fix for the case when GCC_PLUGIN_STACKLEAK=y is enabled.

Thanks,

Ingo

------------------>
Arvind Sankar (1):
x86/purgatory: Disable the stackleak GCC plugin for the purgatory


arch/x86/purgatory/Makefile | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 10fb42da0007..b81b5172cf99 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -23,6 +23,7 @@ KCOV_INSTRUMENT := n

PURGATORY_CFLAGS_REMOVE := -mcmodel=kernel
PURGATORY_CFLAGS := -mcmodel=large -ffreestanding -fno-zero-initialized-in-bss
+PURGATORY_CFLAGS += $(DISABLE_STACKLEAK_PLUGIN)

# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
# in turn leaves some undefined symbols like __fentry__ in purgatory and not