dasharo/linux
0
0
Fork 0
mirror of https://github.com/Dasharo/linux.git synced 2026-03-06 15:25:10 -08:00
Code Issues Packages Projects Releases Wiki Activity

[PATCH] Kprobes/IA64: support kprobe on branch/call instructions

Browse Source 
This patch is required to support kprobe on branch/call instructions.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Anil S Keshavamurthy
2005-06-23 00:09:29 -07:00
committed by Linus Torvalds
parent b2761dc262
commit cd2675bf65
2 changed files with 133 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
include/asm-ia64/kprobes.h
View File

@@ -44,6 +44,17 @@ typedef struct _bundle {
#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry
#define SLOT0_OPCODE_SHIFT (37)
#define SLOT1_p1_OPCODE_SHIFT (37 - (64-46))
#define SLOT2_OPCODE_SHIFT (37)
#define INDIRECT_CALL_OPCODE (1)
#define IP_RELATIVE_CALL_OPCODE (5)
#define IP_RELATIVE_BRANCH_OPCODE (4)
#define IP_RELATIVE_PREDICT_OPCODE (7)
#define LONG_BRANCH_OPCODE (0xC)
#define LONG_CALL_OPCODE (0xD)
typedef struct kprobe_opcode {
bundle_t bundle;
} kprobe_opcode_t;
@@ -55,8 +66,12 @@ struct fnptr {
/* Architecture specific copy of original instruction*/
struct arch_specific_insn {
/* copy of the original instruction */
/* copy of the instruction to be emulated */
kprobe_opcode_t insn;
#define INST_FLAG_FIX_RELATIVE_IP_ADDR 1
#define INST_FLAG_FIX_BRANCH_REG 2
unsigned long inst_flag;
unsigned short target_br_reg;
};
/* ia64 does not need this */