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authorAnanth N Mavinakayanahalli <ananth@in.ibm.com>2012-06-08 15:02:57 +0530
committerIngo Molnar <mingo@kernel.org>2012-06-08 12:22:27 +0200
commit7eb9ba5ed312ec6ed9d22259c5da1acb7cf4bd29 (patch)
treede796c5ae68abfbb951b0c474789848cbcfd788a /kernel
parent70ab7003dec58afeae7f5d681dfa309b3a259f03 (diff)
uprobes: Pass probed vaddr to arch_uprobe_analyze_insn()
On RISC architectures like powerpc, instructions are fixed size. Instruction analysis on such platforms is just a matter of (insn % 4). Pass the vaddr at which the uprobe is to be inserted so that arch_uprobe_analyze_insn() can flag misaligned registration requests. Signed-off-by: Ananth N Mavinakaynahalli <ananth@in.ibm.com> Cc: michael@ellerman.id.au Cc: antonb@thinktux.localdomain Cc: Paul Mackerras <paulus@samba.org> Cc: benh@kernel.crashing.org Cc: peterz@infradead.org Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: oleg@redhat.com Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20120608093257.GG13409@in.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/uprobes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 8c5e043cd309..b52376d02332 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -706,7 +706,7 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn))
return -EEXIST;
- ret = arch_uprobe_analyze_insn(&uprobe->arch, mm);
+ ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, addr);
if (ret)
return ret;