tests/pc.c: use libtests

* tests/pc.c (main): Use assert, get_page_size, perror_msg_and_fail,
and perror_msg_and_skip.

diff --git a/tests/pc.c b/tests/pc.c
index aef0bc39de8cda56b6fcbb20479be88ce768f731..f53acd451a07f667ef3888d64697af557e1eb510 100644 (file)
--- a/tests/pc.c
+++ b/tests/pc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,6 +26,7 @@
  */
 
 #include "tests.h"
+#include <assert.h>
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -35,27 +36,25 @@
 
 int main(void)
 {
-       const unsigned long pagesize = sysconf(_SC_PAGESIZE);
+       const unsigned long pagesize = get_page_size();
 
 #ifdef __s390__
        /*
         * The si_addr field is unreliable:
         * https://marc.info/?l=linux-s390&m=142515870124248&w=2
         */
-       return 77;
+       error_msg_and_skip("s390: si_addr is unreliable");
 #endif
 
        /* write instruction pointer length to the log */
-       if (write(-1, NULL, 2 * sizeof(void *)) >= 0)
-               return 77;
+       assert(write(-1, NULL, 2 * sizeof(void *)) < 0);
 
        /* just a noticeable line in the log */
-       if (munmap(&main, 0) >= 0)
-               return 77;
+       assert(munmap(&main, 0) < 0);
 
        int pid = fork();
        if (pid < 0)
-               return 77;
+               perror_msg_and_fail("fork");
 
        if (!pid) {
                const unsigned long mask = ~(pagesize - 1);
@@ -81,14 +80,13 @@ int main(void)
                /* SIGSEGV is expected */
                (void) munmap((void *) addr, size);
                (void) munmap((void *) addr, size);
-               return 77;
+               error_msg_and_skip("SIGSEGV did not happen");
        }
 
        int status;
-       if (wait(&status) != pid ||
-           !WIFSIGNALED(status) ||
-           WTERMSIG(status) != SIGSEGV)
-               return 77;
+       assert(wait(&status) == pid);
+       assert(WIFSIGNALED(status));
+       assert(WTERMSIG(status) == SIGSEGV);
 
        /* dump process map for debug purposes */
        close(0);