On Mon, 2012-09-10 at 18:50 +0200, Jiri Olsa wrote:
> + maps = fopen("/proc/self/maps", "r");
> + if (!maps) {
> + pr_err("vdso: cannot open maps\n");
> + return -1;
> + }
> +
> + while (!found && fgets(line, sizeof(line), maps)) {
> + int m = -1;
> +
> + /* We care only about private r-x mappings. */
> + if (2 != sscanf(line, "%p-%p r-xp %*x %*x:%*x %*u %n",
> + start, end, &m))
> + continue;
> + if (m < 0)
> + continue;
> +
> + if (!strncmp(&line[m], VDSO__MAP_NAME,
> + sizeof(VDSO__MAP_NAME) - 1))
> + found = 1;
> + }
Argh.. :-) We so should have the vdso as a proper elf DSO somewhere
in /proc or /sys, but yeah, lacking that what you've done is about all
we can do.
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