diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/Makefile | 5 | ||||
| -rw-r--r-- | arch/arm/include/asm/stackprotector.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/thread_info.h | 3 | ||||
| -rw-r--r-- | arch/arm/kernel/asm-offsets.c | 4 | ||||
| -rw-r--r-- | arch/arm/kernel/process.c | 4 |
6 files changed, 2 insertions, 18 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index fc196421b2ce..ff3e64ae959e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1600,7 +1600,7 @@ config XEN config STACKPROTECTOR_PER_TASK bool "Use a unique stack canary value for each task" - depends on GCC_PLUGINS && STACKPROTECTOR && SMP && !XIP_DEFLATED_DATA + depends on GCC_PLUGINS && STACKPROTECTOR && THREAD_INFO_IN_TASK && !XIP_DEFLATED_DATA select GCC_PLUGIN_ARM_SSP_PER_TASK default y help diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 847c31e7c368..b46e673a0ebe 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -273,11 +273,8 @@ ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) prepare: stack_protector_prepare stack_protector_prepare: prepare0 $(eval SSP_PLUGIN_CFLAGS := \ - -fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \ - awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\ - include/generated/asm-offsets.h) \ -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \ - awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\ + awk '{if ($$2 == "TSK_STACK_CANARY") print $$3;}'\ include/generated/asm-offsets.h)) $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS)) $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS)) diff --git a/arch/arm/include/asm/stackprotector.h b/arch/arm/include/asm/stackprotector.h index 72a20c3a0a90..088d03161be5 100644 --- a/arch/arm/include/asm/stackprotector.h +++ b/arch/arm/include/asm/stackprotector.h @@ -39,8 +39,6 @@ static __always_inline void boot_init_stack_canary(void) current->stack_canary = canary; #ifndef CONFIG_STACKPROTECTOR_PER_TASK __stack_chk_guard = current->stack_canary; -#else - current_thread_info()->stack_canary = current->stack_canary; #endif } diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index 9a18da3e10cc..f0cacc733231 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -55,9 +55,6 @@ struct thread_info { struct task_struct *task; /* main task structure */ __u32 cpu; /* cpu */ __u32 cpu_domain; /* cpu domain */ -#ifdef CONFIG_STACKPROTECTOR_PER_TASK - unsigned long stack_canary; -#endif struct cpu_context_save cpu_context; /* cpu context */ __u32 abi_syscall; /* ABI type and syscall nr */ __u8 used_cp[16]; /* thread used copro */ diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c index a646a3f6440f..9c864ee76107 100644 --- a/arch/arm/kernel/asm-offsets.c +++ b/arch/arm/kernel/asm-offsets.c @@ -63,10 +63,6 @@ int main(void) #ifdef CONFIG_IWMMXT DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt)); #endif -#ifdef CONFIG_STACKPROTECTOR_PER_TASK - DEFINE(TI_STACK_CANARY, offsetof(struct thread_info, stack_canary)); -#endif - DEFINE(THREAD_SZ_ORDER, THREAD_SIZE_ORDER); BLANK(); DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0)); DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1)); diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 0e2d3051741e..cd73c216b272 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -269,10 +269,6 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start, thread_notify(THREAD_NOTIFY_COPY, thread); -#ifdef CONFIG_STACKPROTECTOR_PER_TASK - thread->stack_canary = p->stack_canary; -#endif - return 0; } |