tests: rewrite sched_xetattr.test from match_grep to match_diff
Unlike the previous edition of the test that was based on match_grep, the new one is match_diff based and does more rigorous testing. * tests/adjtimex.c: Include "xlat.h" and "xlat/schedulers.h", (sys_sched_getattr, sys_sched_setattr): New functions. (main): Use them. Update expected output. * tests/adjtimex.test: Use run_strace_match_diff.
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -32,11 +32,40 @@
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# include <inttypes.h>
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# include <stdio.h>
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# include <sched.h>
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# include <unistd.h>
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# include "xlat.h"
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# include "xlat/schedulers.h"
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static const char *errstr;
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static long
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sys_sched_getattr(kernel_ulong_t pid, kernel_ulong_t attr,
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kernel_ulong_t size, kernel_ulong_t flags)
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{
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long rc = syscall(__NR_sched_getattr, pid, attr, size, flags);
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errstr = sprintrc(rc);
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return rc;
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}
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static long
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sys_sched_setattr(kernel_ulong_t pid, kernel_ulong_t attr, kernel_ulong_t flags)
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{
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long rc = syscall(__NR_sched_setattr, pid, attr, flags);
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errstr = sprintrc(rc);
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return rc;
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}
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int
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main(void)
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{
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static const kernel_ulong_t bogus_pid =
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(kernel_ulong_t) 0xdefacedfacefeedULL;
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static const kernel_ulong_t bogus_size =
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(kernel_ulong_t) 0xdefacedcafef00dULL;
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static const kernel_ulong_t bogus_flags =
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(kernel_ulong_t) 0xdefaceddeadc0deULL;
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struct {
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uint32_t size;
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uint32_t sched_policy;
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@ -46,81 +75,78 @@ main(void)
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uint64_t sched_runtime;
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uint64_t sched_deadline;
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uint64_t sched_period;
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} *sched_attr = tail_alloc(sizeof(*sched_attr));
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} *const attr = tail_alloc(sizeof(*attr));
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void *const efault = attr + 1;
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long rc = syscall(__NR_sched_getattr, 0xdeadface, NULL, 0, 0);
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printf("sched_getattr\\(%d, NULL, 0, 0\\) += %s\n",
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0xdeadface, sprintrc_grep(rc));
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sys_sched_getattr(bogus_pid, 0, 0, 0);
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printf("sched_getattr(%d, NULL, 0, 0) = %s\n", (int) bogus_pid, errstr);
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rc = syscall(__NR_sched_getattr, -1,
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sched_attr, 0xbadfaced, 0xc0defeed);
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printf("sched_getattr\\(-1, %p, %u, %u\\) += %s\n",
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sched_attr, 0xbadfaced, 0xc0defeed, sprintrc_grep(rc));
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sys_sched_getattr(-1U, (unsigned long) attr, bogus_size, bogus_flags);
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printf("sched_getattr(-1, %p, %u, %u) = %s\n",
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attr, (unsigned) bogus_size, (unsigned) bogus_flags, errstr);
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rc = syscall(__NR_sched_getattr, 0,
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sched_attr + 1, sizeof(*sched_attr), 0);
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printf("sched_getattr\\(0, %p, %u, 0\\) += %s\n",
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sched_attr + 1, (unsigned)sizeof(*sched_attr),
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sprintrc_grep(rc));
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sys_sched_getattr(0, (unsigned long) efault, sizeof(*attr), 0);
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printf("sched_getattr(0, %p, %u, 0) = %s\n",
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efault, (unsigned) sizeof(*attr), errstr);
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if (syscall(__NR_sched_getattr, 0, sched_attr, sizeof(*sched_attr), 0))
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if (sys_sched_getattr(0, (unsigned long) attr, sizeof(*attr), 0))
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perror_msg_and_skip("sched_getattr");
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printf("sched_getattr\\(0, \\{size=%u, sched_policy=SCHED_[A-Z]+"
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", sched_flags=%s, sched_nice=%d, sched_priority=%u"
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printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
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printxval(schedulers, attr->sched_policy, NULL);
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printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
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", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
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", sched_period=%" PRIu64 "\\}, %u, 0\\) += 0\n",
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sched_attr->size,
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sched_attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
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sched_attr->sched_nice,
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sched_attr->sched_priority,
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sched_attr->sched_runtime,
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sched_attr->sched_deadline,
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sched_attr->sched_period,
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(unsigned) sizeof(*sched_attr));
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", sched_period=%" PRIu64 "}, %u, 0) = 0\n",
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attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
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attr->sched_nice,
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attr->sched_priority,
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attr->sched_runtime,
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attr->sched_deadline,
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attr->sched_period,
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(unsigned) sizeof(*attr));
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sched_attr->sched_flags |= 1;
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if (syscall(__NR_sched_setattr, 0, sched_attr, 0))
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attr->sched_flags |= 1;
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if (sys_sched_setattr(0, (unsigned long) attr, 0))
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perror_msg_and_skip("sched_setattr");
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printf("sched_setattr\\(0, \\{size=%u, sched_policy=SCHED_[A-Z]+"
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", sched_flags=%s, sched_nice=%d, sched_priority=%u"
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printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
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printxval(schedulers, attr->sched_policy, NULL);
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printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
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", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
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", sched_period=%" PRIu64 "\\}, 0\\) += 0\n",
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sched_attr->size,
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", sched_period=%" PRIu64 "}, 0) = 0\n",
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"SCHED_FLAG_RESET_ON_FORK",
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sched_attr->sched_nice,
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sched_attr->sched_priority,
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sched_attr->sched_runtime,
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sched_attr->sched_deadline,
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sched_attr->sched_period);
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attr->sched_nice,
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attr->sched_priority,
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attr->sched_runtime,
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attr->sched_deadline,
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attr->sched_period);
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sched_attr->size = 0x90807060;
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sched_attr->sched_policy = 0xca7faced;
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sched_attr->sched_flags = 0xbadc0ded1057da7aULL;
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sched_attr->sched_nice = 0xafbfcfdf;
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sched_attr->sched_priority = 0xb8c8d8e8;
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sched_attr->sched_runtime = 0xbadcaffedeadf157ULL;
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sched_attr->sched_deadline = 0xc0de70a57badac75ULL;
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sched_attr->sched_period = 0xded1ca7edda7aca7ULL;
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attr->size = 0x90807060;
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attr->sched_policy = 0xca7faced;
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attr->sched_flags = 0xbadc0ded1057da7aULL;
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attr->sched_nice = 0xafbfcfdf;
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attr->sched_priority = 0xb8c8d8e8;
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attr->sched_runtime = 0xbadcaffedeadf157ULL;
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attr->sched_deadline = 0xc0de70a57badac75ULL;
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attr->sched_period = 0xded1ca7edda7aca7ULL;
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rc = syscall(__NR_sched_setattr, 0xfacec0de, sched_attr, 0xbeeff00d);
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printf("sched_setattr\\(%d, \\{size=%u, "
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"sched_policy=%#x /\\* SCHED_\\?\\?\\? \\*/, "
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"sched_flags=%#" PRIx64 " /\\* SCHED_FLAG_\\?\\?\\? \\*/, "
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"sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
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"sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "\\}, "
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"%u\\) += %s\n",
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0xfacec0de, sched_attr->size,
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sched_attr->sched_policy,
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sched_attr->sched_flags,
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sched_attr->sched_nice,
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sched_attr->sched_priority,
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sched_attr->sched_runtime,
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sched_attr->sched_deadline,
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sched_attr->sched_period, 0xbeeff00d, sprintrc_grep(rc));
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sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
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printf("sched_setattr(%d, {size=%u, sched_policy=%#x /* SCHED_??? */, "
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"sched_flags=%#" PRIx64 " /* SCHED_FLAG_??? */, "
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"sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
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"sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "}, %u)"
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" = %s\n",
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(int) bogus_pid,
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attr->size,
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attr->sched_policy,
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attr->sched_flags,
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attr->sched_nice,
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attr->sched_priority,
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attr->sched_runtime,
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attr->sched_deadline,
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attr->sched_period,
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(unsigned) bogus_flags, errstr);
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puts("+++ exited with 0 +++");
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return 0;
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}
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@ -1,12 +1,6 @@
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#!/bin/sh
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# Check sched_getattr and sched_setattr syscalls decoding.
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. "${srcdir=.}/init.sh"
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run_prog > /dev/null
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run_strace -e sched_getattr,sched_setattr $args > "$OUT"
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match_grep "$LOG" "$OUT"
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rm -f "$OUT"
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exit 0
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run_strace_match_diff -a29 -e trace=sched_getattr,sched_setattr
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