6433ec22b1
Linker --wrap option resolves to __wrap_symbol for undefined symbol. During the compilation of host libportable.a, __HOST__ is defined to rename all portable functions to __wrap_symbol, and the real function to __real_symbol. This way libportable.a can be validated at host w/o changes of user's source code. See http://sourceware.org/binutils/docs/ld/Options.html Change-Id: Idcbe53dd642536f3dc2be85a875f95535b9dc0b1
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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* Copyright 2012, 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 <portability.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <signal_portable.h>
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#include <stdio.h>
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#include <sys/wait.h>
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#define PORTABLE_TAG "waitpid_portable"
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#include <log_portable.h>
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pid_t WRAP(waitpid)(pid_t pid, int *status, int options)
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{
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pid_t ret;
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ret = REAL(waitpid)(pid, status, options);
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if (status && ret > 0) {
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/*
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* Status layout is identical, so just the signal
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* number needs to be changed.
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*/
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if (WIFSIGNALED(*status))
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*status = (*status & ~0x7f) | signum_ntop(WTERMSIG(*status));
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else if (WIFSTOPPED(*status))
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*status = (*status & ~0xff00) | (signum_ntop(WSTOPSIG(*status)) << 8);
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}
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return ret;
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}
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