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| author | Huacai Chen <chenhuacai@loongson.cn> | 2022-12-10 22:40:15 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2022-12-14 08:41:53 +0800 |
| commit | 09f33601bf940f955c10a6e75a1c1b7bcadee5e2 (patch) | |
| tree | 423542be6f130680ebf31b6f679af26cb764775a /arch/loongarch/kernel/process.c | |
| parent | 7db54bfe44a662c8f2c10277bccfa02c2f4c719c (diff) | |
LoongArch: Add basic STACKPROTECTOR support
Add basic stack protector support similar to other architectures. A
constant canary value is set at boot time, and with help of compiler's
-fstack-protector we can detect stack corruption.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel/process.c')
| -rw-r--r-- | arch/loongarch/kernel/process.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c index ddb8ba4eb399..790cc14c5f06 100644 --- a/arch/loongarch/kernel/process.c +++ b/arch/loongarch/kernel/process.c @@ -47,6 +47,12 @@ #include <asm/unwind.h> #include <asm/vdso.h> +#ifdef CONFIG_STACKPROTECTOR +#include <linux/stackprotector.h> +unsigned long __stack_chk_guard __read_mostly; +EXPORT_SYMBOL(__stack_chk_guard); +#endif + /* * Idle related variables and functions */ |