/*
* Copyright ( C ) 2024 The Android Open Source Project
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* * Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* * Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in
* the documentation and / or other materials provided with the
* distribution .
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* " AS IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT
* LIMITED TO , THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED . IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING ,
* BUT NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS
* OF USE , DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY ,
* OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE .
*/
#include <android-base/file.h>
#include <android-base/unique_fd.h>
#include "linker_phdr.h"
#include <gtest/gtest.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string>
using ::android::base::GetExecutableDirectory;
using ::android::base::unique_fd;
namespace {
static std::string GetTestElfPath(const std::string& filename) {
static std::string test_data_dir = GetExecutableDirectory();
return test_data_dir + "/" + filename;
}
bool GetPadSegment(const std::string& elf_path) {
std::string path = GetTestElfPath(elf_path);
unique_fd fd{TEMP_FAILURE_RETRY(open(path.c_str(), O_CLOEXEC | O_RDWR))};
EXPECT_GE(fd.get(), 0 ) << "Failed to open " << path << ": " << strerror(errno);
struct stat file_stat;
EXPECT_NE(TEMP_FAILURE_RETRY(fstat(fd.get(), &file_stat)), -1 )
<< "Failed to stat " << path << ": " << strerror(errno);
ElfReader elf_reader;
EXPECT_TRUE(elf_reader.Read(path.c_str(), fd.get(), 0 , file_stat.st_size))
<< "Failed to read ELF file" ;
return elf_reader.should_pad_segments();
}
}; // anonymous namespace
TEST(crt_pad_segment, note_absent) {
if (!page_size_migration_supported()) {
GTEST_SKIP() << "Kernel does not support page size migration" ;
}
ASSERT_FALSE(GetPadSegment("no_crt_pad_segment.so" ));
}
TEST(crt_pad_segment, note_present_and_enabled) {
if (!page_size_migration_supported()) {
GTEST_SKIP() << "Kernel does not support page size migration" ;
}
ASSERT_TRUE(GetPadSegment("crt_pad_segment_enabled.so" ));
}
TEST(crt_pad_segment, note_present_and_disabled) {
if (!page_size_migration_supported()) {
GTEST_SKIP() << "Kernel does not support page size migration" ;
}
ASSERT_FALSE(GetPadSegment("crt_pad_segment_disabled.so" ));
}
Messung V0.5 in Prozent C=83 H=97 G=90
[Dauer der Verarbeitung: 0.12 Sekunden, vorverarbeitet 2026-06-28]