Re: [PATCH 06/40] perf tools: Add HEADER_DATA_INDEX feature

From: Jiri Olsa
Date: Mon May 18 2015 - 14:18:21 EST


On Mon, May 18, 2015 at 09:30:21AM +0900, Namhyung Kim wrote:

SNIP

>
> +static int process_data_index(struct perf_file_section *section __maybe_unused,
> + struct perf_header *ph, int fd,
> + void *data __maybe_unused)
> +{
> + ssize_t ret;
> + u64 nr_idx;
> + unsigned i;
> + struct perf_file_section *idx;
> +
> + ret = readn(fd, &nr_idx, sizeof(nr_idx));
> + if (ret != sizeof(nr_idx))
> + return -1;
> +
> + if (ph->needs_swap)
> + nr_idx = bswap_64(nr_idx);
> +
> + idx = calloc(nr_idx, sizeof(*idx));
> + if (idx == NULL)
> + return -1;
> +
> + for (i = 0; i < nr_idx; i++) {
> + ret = readn(fd, &idx[i], sizeof(*idx));
> + if (ret != sizeof(*idx))

missing free(idx);

jirka

> + return ret;
> +
> + if (ph->needs_swap) {
> + idx[i].offset = bswap_64(idx[i].offset);
> + idx[i].size = bswap_64(idx[i].size);
> + }
> + }
> +
> + ph->index = idx;
> + ph->nr_index = nr_idx;
> + return 0;

SNIP

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