Messages in this thread | | | Date | Wed, 24 Jul 2013 14:50:25 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH V8 13/15] perf tools: expand perf_event__synthesize_sample() |
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On Thu, Jul 18, 2013 at 01:42:55PM +0300, Adrian Hunter wrote:
SNIP
> @@ -1349,11 +1349,12 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, > } > > int perf_event__synthesize_sample(union perf_event *event, u64 type, > + u64 sample_regs_user, > const struct perf_sample *sample, > bool swapped) > { > u64 *array; > - > + size_t sz; > /* > * used for cross-endian analysis. See git commit 65014ab3 > * for why this goofiness is needed. > @@ -1426,6 +1427,73 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type, > array++; > } > > + if (type & PERF_SAMPLE_READ) { > + fprintf(stderr, "PERF_SAMPLE_READ is unsupported for now\n"); > + return -1; > + } > + > + if (type & PERF_SAMPLE_CALLCHAIN) { > + sz = (sample->callchain->nr + 1) * sizeof(u64); > + memcpy(array, sample->callchain, sz); > + array = (void *)array + sz; > + } > + > + if (type & PERF_SAMPLE_RAW) { > + u.val32[0] = sample->raw_size; > + if (WARN_ONCE(swapped, > + "Endianness of raw data not corrected!\n")) { > + /* > + * Inverse of what is done in perf_evsel__parse_sample > + */ > + u.val32[0] = bswap_32(u.val32[0]); > + u.val32[1] = bswap_32(u.val32[1]); > + u.val64 = bswap_64(u.val64); > + } > + *array = u.val64; > + array = (void *)array + sizeof(u32); > + > + memcpy(array, sample->raw_data, sample->raw_size); > + array = (void *)array + sample->raw_size; > + } > + > + if (type & PERF_SAMPLE_BRANCH_STACK) { > + sz = sample->branch_stack->nr * sizeof(struct branch_entry); > + sz += sizeof(u64); > + memcpy(array, sample->branch_stack, sz); > + array = (void *)array + sz; > + } > + > + if (type & PERF_SAMPLE_REGS_USER) { > + if (sample->user_regs.regs && sample_regs_user) { > + *array++ = sample_regs_user;
it's 'enum perf_sample_regs_abi' value that goes here ^^^
I guess for now it could be hardcoded like:
#if defined(__x86_64__) abi = PERF_SAMPLE_REGS_ABI_64 #else #if defined(__i386__) abi = PERF_SAMPLE_REGS_ABI_64 #endif WARN() #endif
jirka
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