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| author | Sami Tolvanen <samitolvanen@google.com> | 2020-04-27 09:00:16 -0700 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-05-15 16:35:50 +0100 |
| commit | 5287569a790d2546a06db07e391bf84b8bd6cf51 (patch) | |
| tree | 137dc42c9e15afc1b7880798d2ea1ed146301211 /arch/arm64/kernel/asm-offsets.c | |
| parent | 9654736891c3ac6a60b52ce70d33cf57cf95bff7 (diff) | |
| download | linux-5287569a790d2546a06db07e391bf84b8bd6cf51.tar.bz2 | |
arm64: Implement Shadow Call Stack
This change implements shadow stack switching, initial SCS set-up,
and interrupt shadow stacks for arm64.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/asm-offsets.c')
| -rw-r--r-- | arch/arm64/kernel/asm-offsets.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index 9981a0a5a87f..d7934250b68c 100644 --- a/arch/arm64/kernel/asm-offsets.c +++ b/arch/arm64/kernel/asm-offsets.c @@ -34,6 +34,10 @@ int main(void) #ifdef CONFIG_ARM64_SW_TTBR0_PAN DEFINE(TSK_TI_TTBR0, offsetof(struct task_struct, thread_info.ttbr0)); #endif +#ifdef CONFIG_SHADOW_CALL_STACK + DEFINE(TSK_TI_SCS_BASE, offsetof(struct task_struct, thread_info.scs_base)); + DEFINE(TSK_TI_SCS_OFFSET, offsetof(struct task_struct, thread_info.scs_offset)); +#endif DEFINE(TSK_STACK, offsetof(struct task_struct, stack)); #ifdef CONFIG_STACKPROTECTOR DEFINE(TSK_STACK_CANARY, offsetof(struct task_struct, stack_canary)); |