Re: [PATCH 2/2] bpftool: Adjust to new print_bpf_insn interface

From: Daniel Borkmann
Date: Wed Mar 21 2018 - 12:45:12 EST


On 03/21/2018 05:43 PM, Jiri Olsa wrote:
> On Wed, Mar 21, 2018 at 04:39:09PM +0000, Quentin Monnet wrote:
>> 2018-03-21 16:02 UTC+0100 ~ Jiri Olsa <jolsa@xxxxxxxxxx>
>>> Change bpftool to skip the removed struct bpf_verifier_env
>>> argument in print_bpf_insn. It was passed as NULL anyway.
>>>
>>> No functional change intended.
>>>
>>> Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
>>> ---
>>> tools/bpf/bpftool/prog.c | 8 ++++----
>>> 1 file changed, 4 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
>>> index e549e329be82..108001d974ee 100644
>>> --- a/tools/bpf/bpftool/prog.c
>>> +++ b/tools/bpf/bpftool/prog.c
>>> @@ -489,7 +489,7 @@ static struct kernel_sym *kernel_syms_search(struct dump_data *dd,
>>> sizeof(*dd->sym_mapping), kernel_syms_cmp) : NULL;
>>> }
>>>
>>> -static void print_insn(struct bpf_verifier_env *env, const char *fmt, ...)
>>> +static void print_insn(void *private_data, const char *fmt, ...)
>>> {
>>> va_list args;
>>>
>>> @@ -576,7 +576,7 @@ static void dump_xlated_plain(struct dump_data *dd, void *buf,
>>> double_insn = insn[i].code == (BPF_LD | BPF_IMM | BPF_DW);
>>>
>>> printf("% 4d: ", i);
>>> - print_bpf_insn(&cbs, NULL, insn + i, true);
>>> + print_bpf_insn(&cbs, insn + i, true);
>>>
>>> if (opcodes) {
>>> printf(" ");
>>> @@ -590,7 +590,7 @@ static void dump_xlated_plain(struct dump_data *dd, void *buf,
>>> }
>>> }
>>>
>>> -static void print_insn_json(struct bpf_verifier_env *env, const char *fmt, ...)
>>> +static void print_insn_json(void *private_data, const char *fmt, ...)
>>> {
>>> unsigned int l = strlen(fmt);
>>> char chomped_fmt[l];
>>> @@ -628,7 +628,7 @@ static void dump_xlated_json(struct dump_data *dd, void *buf,
>>>
>>> jsonw_start_object(json_wtr);
>>> jsonw_name(json_wtr, "disasm");
>>> - print_bpf_insn(&cbs, NULL, insn + i, true);
>>> + print_bpf_insn(&cbs, insn + i, true);
>>>
>>> if (opcodes) {
>>> jsonw_name(json_wtr, "opcodes");
>>>
>>
>> Hi Jiri, this code has changed in the tree. It was moved to
>> tools/bpf/bpftool/xlated_dumper.c, and there is now a third function to
>> update: print_insn_for_graph(). Could you please rebase the patch?
>
> sure.. I was over perf tree, I'll check on bpf tree

Just to be sure, it should be bpf-next. bpf is for fixes only.

Thanks,
Daniel