diff options
Diffstat (limited to 'arch/arm64/include/asm/stacktrace.h')
-rw-r--r-- | arch/arm64/include/asm/stacktrace.h | 62 |
1 files changed, 2 insertions, 60 deletions
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h index aec9315bf156..6ebdcdff77f5 100644 --- a/arch/arm64/include/asm/stacktrace.h +++ b/arch/arm64/include/asm/stacktrace.h @@ -8,52 +8,20 @@ #include <linux/percpu.h> #include <linux/sched.h> #include <linux/sched/task_stack.h> -#include <linux/types.h> #include <linux/llist.h> #include <asm/memory.h> +#include <asm/pointer_auth.h> #include <asm/ptrace.h> #include <asm/sdei.h> -enum stack_type { - STACK_TYPE_UNKNOWN, - STACK_TYPE_TASK, - STACK_TYPE_IRQ, - STACK_TYPE_OVERFLOW, - STACK_TYPE_SDEI_NORMAL, - STACK_TYPE_SDEI_CRITICAL, - __NR_STACK_TYPES -}; - -struct stack_info { - unsigned long low; - unsigned long high; - enum stack_type type; -}; +#include <asm/stacktrace/common.h> extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk, const char *loglvl); DECLARE_PER_CPU(unsigned long *, irq_stack_ptr); -static inline bool on_stack(unsigned long sp, unsigned long size, - unsigned long low, unsigned long high, - enum stack_type type, struct stack_info *info) -{ - if (!low) - return false; - - if (sp < low || sp + size < sp || sp + size > high) - return false; - - if (info) { - info->low = low; - info->high = high; - info->type = type; - } - return true; -} - static inline bool on_irq_stack(unsigned long sp, unsigned long size, struct stack_info *info) { @@ -89,30 +57,4 @@ static inline bool on_overflow_stack(unsigned long sp, unsigned long size, struct stack_info *info) { return false; } #endif - -/* - * We can only safely access per-cpu stacks from current in a non-preemptible - * context. - */ -static inline bool on_accessible_stack(const struct task_struct *tsk, - unsigned long sp, unsigned long size, - struct stack_info *info) -{ - if (info) - info->type = STACK_TYPE_UNKNOWN; - - if (on_task_stack(tsk, sp, size, info)) - return true; - if (tsk != current || preemptible()) - return false; - if (on_irq_stack(sp, size, info)) - return true; - if (on_overflow_stack(sp, size, info)) - return true; - if (on_sdei_stack(sp, size, info)) - return true; - - return false; -} - #endif /* __ASM_STACKTRACE_H */ |