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| author | Ananth N Mavinakayanahalli <ananth@in.ibm.com> | 2012-06-08 09:32:57 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-06-08 10:22:27 (GMT) |
| commit | 7eb9ba5ed312ec6ed9d22259c5da1acb7cf4bd29 (patch) | |
| tree | de796c5ae68abfbb951b0c474789848cbcfd788a /arch/x86/kernel/uprobes.c | |
| parent | 70ab7003dec58afeae7f5d681dfa309b3a259f03 (diff) | |
| download | linux-7eb9ba5ed312ec6ed9d22259c5da1acb7cf4bd29.tar.xz | |
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 'arch/x86/kernel/uprobes.c')
| -rw-r--r-- | arch/x86/kernel/uprobes.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c index dc4e910..36fd420 100644 --- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -409,9 +409,10 @@ static int validate_insn_bits(struct arch_uprobe *auprobe, struct mm_struct *mm, * arch_uprobe_analyze_insn - instruction analysis including validity and fixups. * @mm: the probed address space. * @arch_uprobe: the probepoint information. + * @addr: virtual address at which to install the probepoint * Return 0 on success or a -ve number on error. */ -int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm) +int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long addr) { int ret; struct insn insn; |