31b88da843
ifuncs now work in i386 and x86_64 when called in the same library as well as in a different library. Bug:6657325 (cherry picked from commit c5a13efa9bc4264be0a9a9e37c00633af01584ed) Change-Id: I321d780bc2f9bd1baa749e1acacd2683aefe827b
37 lines
944 B
C
37 lines
944 B
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 <stdio.h>
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#include <stdlib.h>
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const char* foo() __attribute__ ((ifunc ("foo_ifunc")));
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const char* f1() {
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return "unset";
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}
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const char* f2() {
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return "set";
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}
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void* foo_ifunc() {
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char* choice = getenv("IFUNC_CHOICE");
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return choice == NULL ? f1 : f2;
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}
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const char* foo_library() {
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return foo();
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} |