diff options
Diffstat (limited to 'arch/riscv/include/asm/stacktrace.h')
| -rw-r--r-- | arch/riscv/include/asm/stacktrace.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/stacktrace.h b/arch/riscv/include/asm/stacktrace.h index 3450c1912afd..b1495a7e06ce 100644 --- a/arch/riscv/include/asm/stacktrace.h +++ b/arch/riscv/include/asm/stacktrace.h @@ -16,4 +16,14 @@ extern void notrace walk_stackframe(struct task_struct *task, struct pt_regs *re extern void dump_backtrace(struct pt_regs *regs, struct task_struct *task, const char *loglvl); +static inline bool on_thread_stack(void) +{ + return !(((unsigned long)(current->stack) ^ current_stack_pointer) & ~(THREAD_SIZE - 1)); +} + + +#ifdef CONFIG_VMAP_STACK +DECLARE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)], overflow_stack); +#endif /* CONFIG_VMAP_STACK */ + #endif /* _ASM_RISCV_STACKTRACE_H */ |