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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-parisc/unwind.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-parisc/unwind.h')
-rw-r--r--include/asm-parisc/unwind.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/include/asm-parisc/unwind.h b/include/asm-parisc/unwind.h
new file mode 100644
index 00000000000..2f7e6e50a15
--- /dev/null
+++ b/include/asm-parisc/unwind.h
@@ -0,0 +1,77 @@
+#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);
+
+#endif