From 9a0e3a86837ac7542e601c18346102c9d9e65fa5 Mon Sep 17 00:00:00 2001 From: Ananth N Mavinakayanahalli Date: Mon, 7 Nov 2005 01:00:08 -0800 Subject: [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 Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/kprobes.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/asm-i386') diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 8b6d3a90cd7..ca916a89287 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. -- cgit v1.2.3