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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2016-11-22 11:49:30 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-11-23 12:57:15 +0100 |
| commit | 6533b7c16ee5712041b4e324100550e02a9a5dda (patch) | |
| tree | 4a177902f8805cd188f851154d24a673dc1b5449 /arch/powerpc/kernel/Makefile | |
| parent | powerpc: Implement {cmp}xchg for u8 and u16 (diff) | |
| download | linux-6533b7c16ee5712041b4e324100550e02a9a5dda.tar.xz linux-6533b7c16ee5712041b4e324100550e02a9a5dda.zip | |
powerpc: Initial stack protector (-fstack-protector) support
Partialy copied from commit c743f38013aef ("ARM: initial stack protector
(-fstack-protector) support")
This is the very basic stuff without the changing canary upon
task switch yet. Just the Kconfig option and a constant canary
value initialized at boot time.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/Makefile')
| -rw-r--r-- | arch/powerpc/kernel/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 26b5a5e02e69..7a9f7164cc2e 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -19,6 +19,10 @@ CFLAGS_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) +# -fstack-protector triggers protection checks in this code, +# but it is being used too early to link to meaningful stack_chk logic. +CFLAGS_prom_init.o += $(call cc-option, -fno-stack-protector) + ifdef CONFIG_FUNCTION_TRACER # Do not trace early boot code CFLAGS_REMOVE_cputable.o = -mno-sched-epilog $(CC_FLAGS_FTRACE) |