From a9ad965ea9a6d719daf333847a2ceb0e363994bd Mon Sep 17 00:00:00 2001 From: "bibo, mao" Date: Sun, 30 Jul 2006 03:03:26 -0700 Subject: [PATCH] IA64: kprobe invalidate icache of jump buffer Kprobe inserts breakpoint instruction in probepoint and then jumps to instruction slot when breakpoint is hit, the instruction slot icache must be consistent with dcache. Here is the patch which invalidates instruction slot icache area. Without this patch, in some machines there will be fault when executing instruction slot where icache content is inconsistent with dcache. Signed-off-by: bibo,mao Acked-by: "Luck, Tony" Acked-by: Keshavamurthy Anil S Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/kprobes.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/asm-i386/kprobes.h') diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 0730a20f6db8..8774d06689da 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -45,6 +45,7 @@ typedef u8 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 0 +#define flush_insn_slot(p) do { } while (0) void arch_remove_kprobe(struct kprobe *p); void kretprobe_trampoline(void); -- cgit v1.2.2