granicus.if.org Git - strace/blob - tests/getrusage.c

   1 /*
   2  * Copyright (c) 2016 Fei Jie <feij.fnst@cn.fujitsu.com>
   3  * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
   4  * Copyright (c) 2016-2018 The strace developers.
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: GPL-2.0-or-later
   8  */
   9
  10 #include "tests.h"
  11 #include <asm/unistd.h>
  12
  13 #ifdef __NR_getrusage
  14
  15 # include <stdio.h>
  16 # include <stdint.h>
  17 # include <sys/resource.h>
  18 # include <unistd.h>
  19 # include <errno.h>
  20
  21 # include "xlat.h"
  22 # include "xlat/usagewho.h"
  23
  24 int
  25 invoke_print(int who, const char *who_str, struct rusage *usage)
  26 {
  27         int rc = syscall(__NR_getrusage, who, usage);
  28         int saved_errno = errno;
  29         printf("getrusage(%s, {ru_utime={tv_sec=%lld, tv_usec=%llu}"
  30                ", ru_stime={tv_sec=%lld, tv_usec=%llu}, ru_maxrss=%lu"
  31                ", ru_ixrss=%lu, ru_idrss=%lu, ru_isrss=%lu, ru_minflt=%lu"
  32                ", ru_majflt=%lu, ru_nswap=%lu, ru_inblock=%lu"
  33                ", ru_oublock=%lu, ru_msgsnd=%lu, ru_msgrcv=%lu"
  34                ", ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}) = %s\n",
  35                who_str,
  36                (long long) usage->ru_utime.tv_sec,
  37                zero_extend_signed_to_ull(usage->ru_utime.tv_usec),
  38                (long long) usage->ru_stime.tv_sec,
  39                zero_extend_signed_to_ull(usage->ru_stime.tv_usec),
  40                usage->ru_maxrss, usage->ru_ixrss, usage->ru_idrss,
  41                usage->ru_isrss, usage->ru_minflt, usage->ru_majflt,
  42                usage->ru_nswap, usage->ru_inblock, usage->ru_oublock,
  43                usage->ru_msgsnd, usage->ru_msgrcv, usage->ru_nsignals,
  44                usage->ru_nvcsw, usage->ru_nivcsw, sprintrc(rc));
  45         errno = saved_errno;
  46         return rc;
  47 }
  48
  49 int
  50 main(void)
  51 {
  52         TAIL_ALLOC_OBJECT_CONST_PTR(struct rusage, usage);
  53         if (invoke_print(ARG_STR(RUSAGE_SELF), usage)) {
  54                 perror_msg_and_fail("RUSAGE_SELF");
  55         }
  56         if (invoke_print(ARG_STR(RUSAGE_THREAD), usage) && errno != EINVAL) {
  57                 perror_msg_and_fail("RUSAGE_THREAD");
  58         }
  59
  60         puts("+++ exited with 0 +++");
  61         return 0;
  62 }
  63
  64 #else
  65
  66 SKIP_MAIN_UNDEFINED("__NR_getrusage")
  67
  68 #endif