diff options
| author | Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> | 2005-06-23 11:09:29 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 20:45:23 +0400 |
| commit | cd2675bf65455a45b54228b7acc0c6a26a164cb6 (patch) | |
| tree | 102dd9bdf79ce8a5728dd098fb2b3a574c113186 /include/asm-ia64 | |
| parent | b2761dc262b428475890fffd979687051beb12ba (diff) | |
| download | linux-cd2675bf65455a45b54228b7acc0c6a26a164cb6.tar.xz | |
[PATCH] Kprobes/IA64: support kprobe on branch/call instructions
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>
Diffstat (limited to 'include/asm-ia64')
| -rw-r--r-- | include/asm-ia64/kprobes.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index fec3506e53f8..d30af77a0b11 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -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 */ |