5febc51318
NB: bionic stdio is broken when providing appropriate errno value(s)
on failure so libc.__pstore_append will not report pmsg
misconfigured correctly on android for now.
Test: misconfigured kernel, watch for this message in liblog-unit-tests
Change-Id: Ifb1b550c7d3a3888000459c2f68c392cc23c379f
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <stdio.h>
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TEST(libc, __pstore_append) {
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FILE *fp;
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ASSERT_TRUE(NULL != (fp = fopen("/dev/pmsg0", "a")));
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static const char message[] = "libc.__pstore_append\n";
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ASSERT_EQ((size_t)1, fwrite(message, sizeof(message), 1, fp));
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int fflushReturn = fflush(fp);
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int fflushErrno = fflushReturn ? errno : 0;
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ASSERT_EQ(0, fflushReturn);
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ASSERT_EQ(0, fflushErrno);
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int fcloseReturn = fclose(fp);
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int fcloseErrno = fcloseReturn ? errno : 0;
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ASSERT_EQ(0, fcloseReturn);
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ASSERT_EQ(0, fcloseErrno);
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if ((fcloseErrno == ENOMEM) || (fflushErrno == ENOMEM)) {
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fprintf(stderr,
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"Kernel does not have space allocated to pmsg pstore driver configured\n"
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);
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}
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if (!fcloseReturn && !fcloseErrno && !fflushReturn && !fflushReturn) {
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fprintf(stderr,
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"Reboot, ensure string libc.__pstore_append is in /sys/fs/pstore/pmsg-ramoops-0\n"
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);
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}
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}
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