diff options
Diffstat (limited to 'arch/loongarch/include/asm/unwind.h')
| -rw-r--r-- | arch/loongarch/include/asm/unwind.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/loongarch/include/asm/unwind.h b/arch/loongarch/include/asm/unwind.h index b9dce87afd2e05..40a6763c5aecd5 100644 --- a/arch/loongarch/include/asm/unwind.h +++ b/arch/loongarch/include/asm/unwind.h @@ -16,6 +16,7 @@ enum unwinder_type { UNWINDER_GUESS, UNWINDER_PROLOGUE, + UNWINDER_ORC, }; struct unwind_state { @@ -24,7 +25,7 @@ struct unwind_state { struct task_struct *task; bool first, error, reset; int graph_idx; - unsigned long sp, pc, ra; + unsigned long sp, fp, pc, ra; }; bool default_next_frame(struct unwind_state *state); @@ -61,14 +62,17 @@ static __always_inline void __unwind_start(struct unwind_state *state, state->sp = regs->regs[3]; state->pc = regs->csr_era; state->ra = regs->regs[1]; + state->fp = regs->regs[22]; } else if (task && task != current) { state->sp = thread_saved_fp(task); state->pc = thread_saved_ra(task); state->ra = 0; + state->fp = 0; } else { state->sp = (unsigned long)__builtin_frame_address(0); state->pc = (unsigned long)__builtin_return_address(0); state->ra = 0; + state->fp = 0; } state->task = task; get_stack_info(state->sp, state->task, &state->stack_info); @@ -77,6 +81,18 @@ static __always_inline void __unwind_start(struct unwind_state *state, static __always_inline unsigned long __unwind_get_return_address(struct unwind_state *state) { - return unwind_done(state) ? 0 : state->pc; + if (unwind_done(state)) + return 0; + + return __kernel_text_address(state->pc) ? state->pc : 0; } + +#ifdef CONFIG_UNWINDER_ORC +void unwind_init(void); +void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size, void *orc, size_t orc_size); +#else +static inline void unwind_init(void) {} +static inline void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size, void *orc, size_t orc_size) {} +#endif + #endif /* _ASM_UNWIND_H */ |