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| author | Ananth N Mavinakayanahalli <ananth@in.ibm.com> | 2005-11-07 01:00:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:45 -0800 |
| commit | 9a0e3a86837ac7542e601c18346102c9d9e65fa5 (patch) | |
| tree | 0e58782bfe2be7c1dd82e254df9d4d0fea6781bd /include | |
| parent | e65845235c8120be63001fc1a4ac00c819194bbe (diff) | |
| download | op-kernel-dev-9a0e3a86837ac7542e601c18346102c9d9e65fa5.zip op-kernel-dev-9a0e3a86837ac7542e601c18346102c9d9e65fa5.tar.gz | |
[PATCH] Kprobes: Track kprobe on a per_cpu basis - i386 changes
I386 changes to track kprobe execution on a per-cpu basis. We now track the
kprobe state machine independently on each cpu, using an arch specific kprobe
control block.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
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')
| -rw-r--r-- | include/asm-i386/kprobes.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 8b6d3a9..ca916a8 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -49,6 +49,23 @@ struct arch_specific_insn { kprobe_opcode_t insn[MAX_INSN_SIZE]; }; +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; + unsigned long old_eflags; + unsigned long saved_eflags; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + unsigned long kprobe_old_eflags; + unsigned long kprobe_saved_eflags; + long *jprobe_saved_esp; + struct pt_regs jprobe_saved_regs; + kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; + struct prev_kprobe prev_kprobe; +}; /* trap3/1 are intr gates for kprobes. So, restore the status of IF, * if necessary, before executing the original int3/1 (trap) handler. |
