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Brian Carlstrom700c8d32012-11-05 10:42:02 -08001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "common_test.h"
18
19#include "oat.h"
20#include "elf_file.h"
21
22namespace art {
23
24class ElfWriterTest : public CommonTest {
25
26 protected:
27 virtual void SetUp() {
28 ReserveImageSpace();
29 CommonTest::SetUp();
30 }
31};
32
Brian Carlstrom265091e2013-01-30 14:08:26 -080033#define EXPECT_ELF_FILE_ADDRESS(ef, value, name, build_map) \
Brian Carlstrom265091e2013-01-30 14:08:26 -080034 EXPECT_EQ(value, reinterpret_cast<void*>(ef->FindSymbolAddress(::llvm::ELF::SHT_DYNSYM, name, build_map))); \
Brian Carlstrom700c8d32012-11-05 10:42:02 -080035 EXPECT_EQ(value, ef->FindDynamicSymbolAddress(name)); \
36
Brian Carlstrom6a47b9d2013-05-17 10:58:25 -070037TEST_F(ElfWriterTest, dlsym) {
Brian Carlstrom700c8d32012-11-05 10:42:02 -080038 std::string elf_filename;
39 if (IsHost()) {
40 const char* host_dir = getenv("ANDROID_HOST_OUT");
41 CHECK(host_dir != NULL);
42 elf_filename = StringPrintf("%s/framework/core.oat", host_dir);
43 } else {
44 elf_filename = "/data/art-test/core.oat";
45 }
46 LOG(INFO) << "elf_filename=" << elf_filename;
47
48 UnreserveImageSpace();
49 void* dl_oat_so = dlopen(elf_filename.c_str(), RTLD_NOW);
50 ASSERT_TRUE(dl_oat_so != NULL) << dlerror();
51 void* dl_oatdata = dlsym(dl_oat_so, "oatdata");
52 ASSERT_TRUE(dl_oatdata != NULL);
53
54 OatHeader* dl_oat_header = reinterpret_cast<OatHeader*>(dl_oatdata);
55 ASSERT_TRUE(dl_oat_header->IsValid());
56 void* dl_oatexec = dlsym(dl_oat_so, "oatexec");
57 ASSERT_TRUE(dl_oatexec != NULL);
58 ASSERT_LT(dl_oatdata, dl_oatexec);
59
60 void* dl_oatlastword = dlsym(dl_oat_so, "oatlastword");
61 ASSERT_TRUE(dl_oatlastword != NULL);
62 ASSERT_LT(dl_oatexec, dl_oatlastword);
63
64 ASSERT_EQ(0, dlclose(dl_oat_so));
65
66 UniquePtr<File> file(OS::OpenFile(elf_filename.c_str(), false));
67 ASSERT_TRUE(file.get() != NULL);
68 {
69 UniquePtr<ElfFile> ef(ElfFile::Open(file.get(), false, false));
70 CHECK(ef.get() != NULL);
Brian Carlstrom265091e2013-01-30 14:08:26 -080071 EXPECT_ELF_FILE_ADDRESS(ef, dl_oatdata, "oatdata", false);
72 EXPECT_ELF_FILE_ADDRESS(ef, dl_oatexec, "oatexec", false);
73 EXPECT_ELF_FILE_ADDRESS(ef, dl_oatlastword, "oatlastword", false);
74 }
75 {
76 UniquePtr<ElfFile> ef(ElfFile::Open(file.get(), false, false));
77 CHECK(ef.get() != NULL);
78 EXPECT_ELF_FILE_ADDRESS(ef, dl_oatdata, "oatdata", true);
79 EXPECT_ELF_FILE_ADDRESS(ef, dl_oatexec, "oatexec", true);
80 EXPECT_ELF_FILE_ADDRESS(ef, dl_oatlastword, "oatlastword", true);
Brian Carlstrom700c8d32012-11-05 10:42:02 -080081 }
82 {
83 UniquePtr<ElfFile> ef(ElfFile::Open(file.get(), false, true));
84 CHECK(ef.get() != NULL);
85 ef->Load();
86 EXPECT_EQ(dl_oatdata, ef->FindDynamicSymbolAddress("oatdata"));
87 EXPECT_EQ(dl_oatexec, ef->FindDynamicSymbolAddress("oatexec"));
88 EXPECT_EQ(dl_oatlastword, ef->FindDynamicSymbolAddress("oatlastword"));
89 }
90}
91
92} // namespace art