Hi!
> + case 0:
> + sprintf(mapfile, "/proc/%u/maps", getpid());
You could use /proc/self/maps instead.
> + memset(t, 2, ps);
> + u = mmap(t + 3*ps, 3*ps, PROT_WRITE,
> + MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
> + if (u == MAP_FAILED)
> + tst_brkm(TBROK|TERRNO, NULL, "mmap");
> + tst_resm(TINFO, "u = %p", u);
> + memset(u, 2, 4096);
> + x = get_end_addr(u, mapfile);
> + if (x == u + 6*ps)
> + tst_resm(TFAIL, "A single 6*ps VMA found.");
> + else if (x == u + 3*ps) {
> + y = get_end_addr(x, mapfile);
> + if (y == x + 3*ps)
> + tst_resm(TPASS, "two 3*ps VMAs found.");
> + } else
> + tst_brkm(TBROK, cleanup, "unexpected VMA found.");
> + exit(0);
> + default:
> + break;
> + }
> +
> +}
> +
> +static void *get_end_addr(void *addr_s, char *mapfile)
> +{
> + FILE *fp;
> + void *s, *t;
> + char buf[BUFSIZ];
> +
> + fp = fopen(mapfile, "r+");
Hmm, "r+" opens the file for reading and writing (and sets the possition
on the start of the file). Shouldn't just "r" be sufficient?
--
Cyril Hrubis
[email protected]
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