| #ifndef _UNWIND_H_ |
| #define _UNWIND_H_ |
| |
| #include <linux/list.h> |
| |
| /* From ABI specifications */ |
| struct unwind_table_entry { |
| unsigned int region_start; |
| unsigned int region_end; |
| unsigned int Cannot_unwind:1; /* 0 */ |
| unsigned int Millicode:1; /* 1 */ |
| unsigned int Millicode_save_sr0:1; /* 2 */ |
| unsigned int Region_description:2; /* 3..4 */ |
| unsigned int reserved1:1; /* 5 */ |
| unsigned int Entry_SR:1; /* 6 */ |
| unsigned int Entry_FR:4; /* number saved *//* 7..10 */ |
| unsigned int Entry_GR:5; /* number saved *//* 11..15 */ |
| unsigned int Args_stored:1; /* 16 */ |
| unsigned int Variable_Frame:1; /* 17 */ |
| unsigned int Separate_Package_Body:1; /* 18 */ |
| unsigned int Frame_Extension_Millicode:1; /* 19 */ |
| unsigned int Stack_Overflow_Check:1; /* 20 */ |
| unsigned int Two_Instruction_SP_Increment:1; /* 21 */ |
| unsigned int Ada_Region:1; /* 22 */ |
| unsigned int cxx_info:1; /* 23 */ |
| unsigned int cxx_try_catch:1; /* 24 */ |
| unsigned int sched_entry_seq:1; /* 25 */ |
| unsigned int reserved2:1; /* 26 */ |
| unsigned int Save_SP:1; /* 27 */ |
| unsigned int Save_RP:1; /* 28 */ |
| unsigned int Save_MRP_in_frame:1; /* 29 */ |
| unsigned int extn_ptr_defined:1; /* 30 */ |
| unsigned int Cleanup_defined:1; /* 31 */ |
| |
| unsigned int MPE_XL_interrupt_marker:1; /* 0 */ |
| unsigned int HP_UX_interrupt_marker:1; /* 1 */ |
| unsigned int Large_frame:1; /* 2 */ |
| unsigned int Pseudo_SP_Set:1; /* 3 */ |
| unsigned int reserved4:1; /* 4 */ |
| unsigned int Total_frame_size:27; /* 5..31 */ |
| }; |
| |
| struct unwind_table { |
| struct list_head list; |
| const char *name; |
| unsigned long gp; |
| unsigned long base_addr; |
| unsigned long start; |
| unsigned long end; |
| const struct unwind_table_entry *table; |
| unsigned long length; |
| }; |
| |
| struct unwind_frame_info { |
| struct task_struct *t; |
| /* Eventually we would like to be able to get at any of the registers |
| available; but for now we only try to get the sp and ip for each |
| frame */ |
| /* struct pt_regs regs; */ |
| unsigned long sp, ip, rp, r31; |
| unsigned long prev_sp, prev_ip; |
| }; |
| |
| struct unwind_table * |
| unwind_table_add(const char *name, unsigned long base_addr, |
| unsigned long gp, void *start, void *end); |
| void |
| unwind_table_remove(struct unwind_table *table); |
| |
| void unwind_frame_init(struct unwind_frame_info *info, struct task_struct *t, |
| struct pt_regs *regs); |
| void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct task_struct *t); |
| void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *regs); |
| int unwind_once(struct unwind_frame_info *info); |
| int unwind_to_user(struct unwind_frame_info *info); |
| |
| int unwind_init(void); |
| |
| #endif |
