//===- LinkerTest.cpp -----------------------------------------------------===//
//
// The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "LinkerTest.h"
#include <mcld/Environment.h>
#include <mcld/Module.h>
#include <mcld/InputTree.h>
#include <mcld/IRBuilder.h>
#include <mcld/Linker.h>
#include <mcld/LinkerConfig.h>
#include <mcld/LinkerScript.h>
#include <mcld/Support/Path.h>
#include <llvm/Support/ELF.h>
using namespace mcld;
using namespace mcld::test;
using namespace mcld::sys::fs;
// Constructor can do set-up work for all test here.
LinkerTest::LinkerTest()
{
}
// Destructor can do clean-up work that doesn't throw exceptions here.
LinkerTest::~LinkerTest()
{
}
// SetUp() will be called immediately before each test.
void LinkerTest::SetUp()
{
}
// TearDown() will be called immediately after each test.
void LinkerTest::TearDown()
{
}
//===----------------------------------------------------------------------===//
// Testcases
//===----------------------------------------------------------------------===//
TEST_F( LinkerTest, set_up_n_clean_up) {
Initialize();
LinkerConfig config("arm-none-linux-gnueabi");
LinkerScript script;
Module module("test", script);
config.setCodeGenType(LinkerConfig::DynObj);
Linker linker;
linker.emulate(script, config);
IRBuilder builder(module, config);
// create inputs here
// builder.CreateInput("./test.o");
if (linker.link(module, builder))
linker.emit(module, "./test.so");
Finalize();
}
// %MCLinker --shared -soname=libplasma.so -Bsymbolic
// -mtriple="armv7-none-linux-gnueabi"
// -L=%p/../../../libs/ARM/Android/android-14
// %p/../../../libs/ARM/Android/android-14/crtbegin_so.o
// %p/plasma.o
// -lm -llog -ljnigraphics -lc
// %p/../../../libs/ARM/Android/android-14/crtend_so.o
// -o libplasma.so
TEST_F( LinkerTest, plasma) {
Initialize();
Linker linker;
LinkerScript script;
///< --mtriple="armv7-none-linux-gnueabi"
LinkerConfig config("armv7-none-linux-gnueabi");
/// -L=${TOPDIR}/test/libs/ARM/Android/android-14
Path search_dir(TOPDIR);
search_dir.append("test/libs/ARM/Android/android-14");
script.directories().insert(search_dir);
/// To configure linker before setting options. Linker::config sets up
/// default target-dependent configuration to LinkerConfig.
linker.emulate(script, config);
config.setCodeGenType(LinkerConfig::DynObj); ///< --shared
config.options().setSOName("libplasma.so"); ///< --soname=libplasma.so
config.options().setBsymbolic(); ///< -Bsymbolic
Module module("libplasma.so", script);
IRBuilder builder(module, config);
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtbegin_so.o
Path crtbegin(search_dir);
crtbegin.append("crtbegin_so.o");
builder.ReadInput("crtbegin", crtbegin);
/// ${TOPDIR}/test/Android/Plasma/ARM/plasma.o
Path plasma(TOPDIR);
plasma.append("test/Android/Plasma/ARM/plasma.o");
builder.ReadInput("plasma", plasma);
// -lm -llog -ljnigraphics -lc
builder.ReadInput("m");
builder.ReadInput("log");
builder.ReadInput("jnigraphics");
builder.ReadInput("c");
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtend_so.o
Path crtend(search_dir);
crtend.append("crtend_so.o");
builder.ReadInput("crtend", crtend);
if (linker.link(module, builder)) {
linker.emit(module, "libplasma.so"); ///< -o libplasma.so
}
Finalize();
}
// The outputs generated without -Bsymbolic usually have more relocation
// entries than the outputs generated with -Bsymbolic. This testcase generates
// output with -Bsymbolic first, then generate the same output without -Bsymbolic.
// By this way, we can make sure symbols and relocations are cleaned between
// two linkings.
TEST_F( LinkerTest, plasma_twice) {
Initialize();
Linker linker;
///< --mtriple="armv7-none-linux-gnueabi"
LinkerConfig config1("armv7-none-linux-gnueabi");
LinkerScript script1;
/// -L=${TOPDIR}/test/libs/ARM/Android/android-14
Path search_dir(TOPDIR);
search_dir.append("test/libs/ARM/Android/android-14");
script1.directories().insert(search_dir);
/// To configure linker before setting options. Linker::config sets up
/// default target-dependent configuration to LinkerConfig.
linker.emulate(script1, config1);
config1.setCodeGenType(LinkerConfig::DynObj); ///< --shared
config1.options().setSOName("libplasma.once.so"); ///< --soname=libplasma.twice.so
config1.options().setBsymbolic(false); ///< -Bsymbolic
Module module1("libplasma.once.so", script1);
IRBuilder builder1(module1, config1);
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtbegin_so.o
Path crtbegin(search_dir);
crtbegin.append("crtbegin_so.o");
builder1.ReadInput("crtbegin", crtbegin);
/// ${TOPDIR}/test/Android/Plasma/ARM/plasma.o
Path plasma(TOPDIR);
plasma.append("test/Android/Plasma/ARM/plasma.o");
builder1.ReadInput("plasma", plasma);
// -lm -llog -ljnigraphics -lc
builder1.ReadInput("m");
builder1.ReadInput("log");
builder1.ReadInput("jnigraphics");
builder1.ReadInput("c");
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtend_so.o
Path crtend(search_dir);
crtend.append("crtend_so.o");
builder1.ReadInput("crtend", crtend);
if (linker.link(module1, builder1)) {
linker.emit(module1, "libplasma.once.so"); ///< -o libplasma.so
}
Finalize();
linker.reset();
Initialize();
///< --mtriple="armv7-none-linux-gnueabi"
LinkerConfig config2("armv7-none-linux-gnueabi");
LinkerScript script2;
/// -L=${TOPDIR}/test/libs/ARM/Android/android-14
script2.directories().insert(search_dir);
/// To configure linker before setting options. Linker::config sets up
/// default target-dependent configuration to LinkerConfig.
linker.emulate(script2, config2);
config2.setCodeGenType(LinkerConfig::DynObj); ///< --shared
config2.options().setSOName("libplasma.twice.so"); ///< --soname=libplasma.twice.exe
config2.options().setBsymbolic(); ///< -Bsymbolic
Module module2("libplasma.so", script2);
IRBuilder builder2(module2, config2);
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtbegin_so.o
builder2.ReadInput("crtbegin", crtbegin);
/// ${TOPDIR}/test/Android/Plasma/ARM/plasma.o
builder2.ReadInput("plasma", plasma);
// -lm -llog -ljnigraphics -lc
builder2.ReadInput("m");
builder2.ReadInput("log");
builder2.ReadInput("jnigraphics");
builder2.ReadInput("c");
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtend_so.o
builder2.ReadInput("crtend", crtend);
if (linker.link(module2, builder2)) {
linker.emit(module2, "libplasma.twice.so"); ///< -o libplasma.exe
}
Finalize();
}
// This testcase put IRBuilder in the heap
TEST_F( LinkerTest, plasma_twice_irbuilder_heap) {
Initialize();
Linker linker;
///< --mtriple="armv7-none-linux-gnueabi"
LinkerConfig config1("armv7-none-linux-gnueabi");
LinkerScript script1;
/// -L=${TOPDIR}/test/libs/ARM/Android/android-14
Path search_dir(TOPDIR);
search_dir.append("test/libs/ARM/Android/android-14");
script1.directories().insert(search_dir);
/// To configure linker before setting options. Linker::config sets up
/// default target-dependent configuration to LinkerConfig.
linker.emulate(script1, config1);
config1.setCodeGenType(LinkerConfig::DynObj); ///< --shared
config1.options().setSOName("libplasma.once.so"); ///< --soname=libplasma.twice.so
config1.options().setBsymbolic(false); ///< -Bsymbolic
Module module1("libplasma.once.so", script1);
IRBuilder *builder1 = new IRBuilder(module1, config1);
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtbegin_so.o
Path crtbegin(search_dir);
crtbegin.append("crtbegin_so.o");
builder1->ReadInput("crtbegin", crtbegin);
/// ${TOPDIR}/test/Android/Plasma/ARM/plasma.o
Path plasma(TOPDIR);
plasma.append("test/Android/Plasma/ARM/plasma.o");
builder1->ReadInput("plasma", plasma);
// -lm -llog -ljnigraphics -lc
builder1->ReadInput("m");
builder1->ReadInput("log");
builder1->ReadInput("jnigraphics");
builder1->ReadInput("c");
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtend_so.o
Path crtend(search_dir);
crtend.append("crtend_so.o");
builder1->ReadInput("crtend", crtend);
if (linker.link(module1, *builder1)) {
linker.emit(module1, "libplasma.once.so"); ///< -o libplasma.so
}
// Can not delete builder until emit the output. Dynamic string table
// needs the file name of the input files, and the inputs' life is
// controlled by IRBuilder
delete builder1;
Finalize();
linker.reset();
Initialize();
///< --mtriple="armv7-none-linux-gnueabi"
LinkerConfig config2("armv7-none-linux-gnueabi");
LinkerScript script2;
/// -L=${TOPDIR}/test/libs/ARM/Android/android-14
script2.directories().insert(search_dir);
/// To configure linker before setting options. Linker::config sets up
/// default target-dependent configuration to LinkerConfig.
linker.emulate(script2, config2);
config2.setCodeGenType(LinkerConfig::DynObj); ///< --shared
config2.options().setSOName("libplasma.twice.so"); ///< --soname=libplasma.twice.exe
config2.options().setBsymbolic(); ///< -Bsymbolic
Module module2("libplasma.so", script2);
IRBuilder* builder2 = new IRBuilder(module2, config2);
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtbegin_so.o
builder2->ReadInput("crtbegin", crtbegin);
/// ${TOPDIR}/test/Android/Plasma/ARM/plasma.o
builder2->ReadInput("plasma", plasma);
// -lm -llog -ljnigraphics -lc
builder2->ReadInput("m");
builder2->ReadInput("log");
builder2->ReadInput("jnigraphics");
builder2->ReadInput("c");
/// ${TOPDIR}/test/libs/ARM/Android/android-14/crtend_so.o
builder2->ReadInput("crtend", crtend);
if (linker.link(module2, *builder2)) {
linker.emit(module2, "libplasma.twice.so"); ///< -o libplasma.exe
}
delete builder2;
Finalize();
}
// %MCLinker --shared -soname=libgotplt.so -mtriple arm-none-linux-gnueabi
// gotplt.o -o libgotplt.so
TEST_F( LinkerTest, plasma_object) {
Initialize();
Linker linker;
///< --mtriple="armv7-none-linux-gnueabi"
LinkerConfig config("armv7-none-linux-gnueabi");
LinkerScript script;
/// To configure linker before setting options. Linker::config sets up
/// default target-dependent configuration to LinkerConfig.
linker.emulate(script, config);
config.setCodeGenType(LinkerConfig::DynObj); ///< --shared
config.options().setSOName("libgotplt.so"); ///< --soname=libgotplt.so
Module module(script);
IRBuilder builder(module, config);
Path gotplt_o(TOPDIR);
gotplt_o.append("test/PLT/gotplt.o");
Input* input = builder.CreateInput("gotplt.o", gotplt_o, Input::Object);
/// Sections
/// [ 0] NULL 00000000 000000 000000 00 0 0 0
builder.CreateELFHeader(*input,
"",
LDFileFormat::Null,
llvm::ELF::SHT_NULL,
0x0);
/// [ 1] .text PROGBITS 00000000 000034 000010 00 AX 0 0 4
LDSection* text = builder.CreateELFHeader(*input,
".text",
llvm::ELF::SHT_PROGBITS,
llvm::ELF::SHF_ALLOC | llvm::ELF::SHF_EXECINSTR,
4);
SectionData* text_data = builder.CreateSectionData(*text);
static uint8_t text_content[] = { 0x00, 0x48, 0x2d, 0xe9,
0xfe, 0xff, 0xff, 0xeb,
0x00, 0x48, 0xbd, 0xe8,
0x0e, 0xf0, 0xa0, 0xe1 };
Fragment* text_frag = builder.CreateRegion(text_content, 0x10);
builder.AppendFragment(*text_frag, *text_data);
/// [ 2] .rel.text REL 00000000 0002ac 000008 08 7 1 4
LDSection* rel_text = builder.CreateELFHeader(*input,
".rel.text",
llvm::ELF::SHT_REL,
0x0, 4);
rel_text->setLink(text);
builder.CreateRelocData(*rel_text);
/// [ 3] .data PROGBITS 00000000 000044 000000 00 WA 0 0 4
LDSection* data = builder.CreateELFHeader(*input,
".data",
llvm::ELF::SHT_PROGBITS,
llvm::ELF::SHF_ALLOC | llvm::ELF::SHF_WRITE,
4);
/// [ 4] .bss NOBITS 00000000 000044 000000 00 WA 0 0 4
LDSection* bss = builder.CreateELFHeader(*input,
".bss",
llvm::ELF::SHT_NOBITS,
llvm::ELF::SHF_ALLOC | llvm::ELF::SHF_WRITE,
4);
builder.CreateBSS(*bss);
/// [ 5] .ARM.attributes ARM_ATTRIBUTES 00000000 000044 000020 00 0 0 1
LDSection* attr = builder.CreateELFHeader(*input,
".ARM.attributes",
llvm::ELF::SHT_ARM_ATTRIBUTES,
0x0,
1);
SectionData* attr_data = builder.CreateSectionData(*attr);
static uint8_t attr_content[] = {
0x41, 0x1f, 0x00, 0x00,
0x00, 0x61, 0x65, 0x61,
0x62, 0x69, 0x00, 0x01,
0x15, 0x00, 0x00, 0x00,
0x06, 0x02, 0x08, 0x01,
0x09, 0x01, 0x14, 0x01,
0x15, 0x01, 0x17, 0x03,
0x18, 0x01, 0x19, 0x01 };
Fragment* attr_frag = builder.CreateRegion(attr_content, 0x20);
builder.AppendFragment(*attr_frag, *attr_data);
/// Symbols
/// 1: 00000000 0 FILE LOCAL DEFAULT ABS Output/gotplt.bc
builder.AddSymbol(*input,
"Output/gotplt.bc", ResolveInfo::File,
ResolveInfo::Define, ResolveInfo::Local, 0);
/// 2: 00000000 0 SECTION LOCAL DEFAULT 1
builder.AddSymbol(*input,
".text", ResolveInfo::Section,
ResolveInfo::Define, ResolveInfo::Local, 0, 0x0, text);
/// 3: 00000000 0 SECTION LOCAL DEFAULT 3
builder.AddSymbol(*input,
".data", ResolveInfo::Section,
ResolveInfo::Define, ResolveInfo::Local, 0, 0x0, data);
/// 4: 00000000 0 SECTION LOCAL DEFAULT 4
builder.AddSymbol(*input,
".bss", ResolveInfo::Section,
ResolveInfo::Define, ResolveInfo::Local, 0, 0x0, bss);
/// 5: 00000000 0 SECTION LOCAL DEFAULT 5
builder.AddSymbol(*input,
".ARM.attributes", ResolveInfo::Section,
ResolveInfo::Define, ResolveInfo::Local, 0, 0x0, attr);
/// 6: 00000000 16 FUNC GLOBAL DEFAULT 1 _Z1fv
builder.AddSymbol(*input,
"_Z1fv", ResolveInfo::Function,
ResolveInfo::Define, ResolveInfo::Global,
16,
0x0,
text);
/// 7: 00000000 0 NOTYPE GLOBAL DEFAULT UND _Z1gv
LDSymbol* z1gv = builder.AddSymbol(*input,
"_Z1gv",
ResolveInfo::NoType,
ResolveInfo::Undefined,
ResolveInfo::Global,
0);
/// Relocations
/// Offset Info Type Sym.Value Sym. Name
/// 00000004 0000071b R_ARM_PLT32 00000000 _Z1gv
builder.AddRelocation(*rel_text, llvm::ELF::R_ARM_PLT32, *z1gv, 0x4);
if (linker.link(module, builder)) {
linker.emit(module, "libgotplt.so"); ///< -o libgotplt.so
}
Finalize();
}