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| author |   Oleg Nesterov <oleg@redhat.com> | 2012-12-30 15:54:08 +0100 |
|---|---|---|
| committer | Oleg Nesterov <oleg@redhat.com> | 2013-02-08 17:47:11 +0100 |
| commit | 74e59dfc6b19e3472a7c16ad57bc831e6e647895 (patch) | |
| tree | 5047f177b6c604f83d4b9f62614acf93a08d34bd /kernel/trace | |
| parent | uprobes/x86: Change __skip_sstep() to actually skip the whole insn (diff) | |
| download | linux-dev-74e59dfc6b19e3472a7c16ad57bc831e6e647895.tar.xz linux-dev-74e59dfc6b19e3472a7c16ad57bc831e6e647895.zip | |
uprobes: Change handle_swbp() to expose bp_vaddr to handler_chain()
Change handle_swbp() to set regs->ip = bp_vaddr in advance, this is
what consumer->handler() needs but uprobe_get_swbp_addr() is not
exported.
This also simplifies the code and makes it more consistent across
the supported architectures. handle_swbp() becomes the only caller
of uprobe_get_swbp_addr().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_uprobe.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index e668024773d4..17d9b2bcc28d 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -492,7 +492,7 @@ static void uprobe_trace_func(struct trace_uprobe *tu, struct pt_regs *regs) return; entry = ring_buffer_event_data(event); - entry->ip = uprobe_get_swbp_addr(task_pt_regs(current)); + entry->ip = instruction_pointer(task_pt_regs(current)); data = (u8 *)&entry[1]; for (i = 0; i < tu->nr_args; i++) call_fetch(&tu->args[i].fetch, regs, data + tu->args[i].offset); @@ -667,7 +667,7 @@ static void uprobe_perf_func(struct trace_uprobe *tu, struct pt_regs *regs) if (!entry) goto out; - entry->ip = uprobe_get_swbp_addr(task_pt_regs(current)); + entry->ip = instruction_pointer(task_pt_regs(current)); data = (u8 *)&entry[1]; for (i = 0; i < tu->nr_args; i++) call_fetch(&tu->args[i].fetch, regs, data + tu->args[i].offset); |