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authorOleg Nesterov <oleg@redhat.com>2013-11-04 20:27:13 +0100
committerOleg Nesterov <oleg@redhat.com>2013-11-06 20:00:05 +0100
commit8a8de66c4f6ebd0f6d3da026ec24339aa5d1db12 (patch)
tree8e8ac183b41f6b1249e819017c93fc24e332a1dd /arch/powerpc
parent736e89d9f782a7dd9a38ecda13b2db916fa72f33 (diff)
uprobes: Introduce arch_uprobe->ixol
Currently xol_get_insn_slot() assumes that we should simply copy arch_uprobe->insn[] which is (ignoring arch_uprobe_analyze_insn) just the copy of the original insn. This is not true for arm which needs to create another insn to execute it out-of-line. So this patch simply adds the new member, ->ixol into the union. This doesn't make any difference for x86 and powerpc, but arm can divorce insn/ixol and initialize the correct xol insn in arch_uprobe_analyze_insn(). Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/uprobes.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h
index b6fc3178372..75c6ecdb8f3 100644
--- a/arch/powerpc/include/asm/uprobes.h
+++ b/arch/powerpc/include/asm/uprobes.h
@@ -37,6 +37,7 @@ typedef ppc_opcode_t uprobe_opcode_t;
struct arch_uprobe {
union {
u8 insn[MAX_UINSN_BYTES];
+ u8 ixol[MAX_UINSN_BYTES];
u32 ainsn;
};
};