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- #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
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