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package com.jogamp.common.os;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.RandomAccessFile;
import jogamp.common.os.elf.ElfHeader;
import jogamp.common.os.elf.Section;
import jogamp.common.os.elf.SectionArmAttributes;
import jogamp.common.os.elf.SectionHeader;
import org.junit.Test;
import com.jogamp.junit.util.JunitTracer;
public class TestElfReader01 extends JunitTracer {
public static String GNU_LINUX_SELF_EXE = "/proc/self/exe";
public static String ARM_HF_EXE = "tst-exe-armhf";
public static String ARM_SF_EXE = "tst-exe-arm";
@Test
public void testGNULinuxSelfExe () throws IOException {
testElfHeaderImpl(GNU_LINUX_SELF_EXE, false);
}
// @Test
public void testArmHFExe () throws IOException {
testElfHeaderImpl(ARM_HF_EXE, false);
}
// @Test
public void testArmSFExe () throws IOException {
testElfHeaderImpl(ARM_SF_EXE, false);
}
void testElfHeaderImpl(String file, boolean fileOutSections) throws IOException {
RandomAccessFile in = new RandomAccessFile(file, "r");
try {
ElfHeader eh = ElfHeader.read(in);
byte[] e_ident = eh.d.getE_ident();
int i=0;
System.err.print("[0..4]: 0x"+toHexString(e_ident[i++]));
System.err.print(", 0x"+toHexString(e_ident[i++]));
System.err.print(", 0x"+toHexString(e_ident[i++]));
System.err.println(", 0x"+toHexString(e_ident[i++]));
System.err.println("e_class "+e_ident[ElfHeader.EI_CLASS]+", "+eh.getArchClassBits()+" bits");
System.err.println("e_data "+e_ident[ElfHeader.EI_DATA]+", "+eh.getDataEncodingMode());
System.err.println("e_flags "+toHexString(eh.getFlags()));
System.err.println(" ARM ABI "+eh.getArmABI());
System.err.println(" ARM lGCC "+eh.getArmLegacyGCCFlags());
System.err.println(" ARM FLOAT "+eh.getArmFloatMode()+", is hard-float "+(2 == eh.getArmFloatMode()));
System.err.println("e_version "+e_ident[ElfHeader.EI_VERSION]);
System.err.println("e_osabi "+eh.getOSABI()+", Linux "+ElfHeader.ELFOSABI_LINUX);
System.err.println("e_abiversion "+e_ident[ElfHeader.EI_ABIVERSION]);
System.err.println("e_machine "+eh.getMachine()+", isARM "+eh.isArm()+", isIntel "+eh.isIntel());
System.err.println("e_version "+eh.d.getE_version());
System.err.println("e_type "+eh.getType());
System.err.println("EH Size "+eh.d.getE_ehsize());
System.err.println("SH num "+eh.d.getE_shnum());
System.err.println("SH entsz "+eh.d.getE_shentsize());
System.err.println("SH off "+toHexString(eh.d.getE_shoff()));
System.err.println("SH strndx "+eh.d.getE_shstrndx());
System.err.println("SH num "+eh.sht.length);
if( 0 < eh.sht.length ) {
System.err.println("SH size "+eh.sht[0].d.getBuffer().limit());
}
{
SectionHeader sh = eh.getSectionHeader(SectionHeader.SHT_ARM_ATTRIBUTES);
boolean abiVFPArgsAcceptsVFPVariant = false;
if( null != sh ) {
final SectionArmAttributes sArmAttrs = (SectionArmAttributes) sh.readSection(in);
final SectionArmAttributes.Attribute abiVFPArgsAttr = sArmAttrs.get(SectionArmAttributes.Tag.ABI_VFP_args);
if( null != abiVFPArgsAttr ) {
abiVFPArgsAcceptsVFPVariant = SectionArmAttributes.abiVFPArgsAcceptsVFPVariant(abiVFPArgsAttr.getULEB128());
}
}
System.err.println("abiVFPArgsAcceptsVFPVariant "+abiVFPArgsAcceptsVFPVariant);
}
for(i=0; i<eh.sht.length; i++) {
final SectionHeader sh = eh.sht[i];
System.err.println(sh);
final int type = sh.getType();
if( SectionHeader.SHT_STRTAB == type ) {
dumpSection(in, sh, "SHT_STRTAB", fileOutSections);
} else if( SectionHeader.SHT_ARM_ATTRIBUTES == type ) {
dumpSection(in, sh, "SHT_ARM_ATTRIBUTES", fileOutSections);
}
}
} finally {
in.close();
}
}
static void dumpSection(RandomAccessFile in, SectionHeader sh, String name, boolean fileOut) throws IllegalArgumentException, IOException {
final Section s = sh.readSection(in);
if(fileOut) {
File outFile = new File("ElfSection-"+sh.getIndex()+"-"+name);
OutputStream out = new BufferedOutputStream(new FileOutputStream(outFile));
try {
out.write(s.data, s.offset, s.length);
} finally {
out.close();
}
}
System.err.println(name+": read "+s.length+", "+s);
}
public static void main(String args[]) throws IOException {
String tstname = TestElfReader01.class.getName();
org.junit.runner.JUnitCore.main(tstname);
}
static String toHexString(int i) { return "0x"+Integer.toHexString(i); }
static String toHexString(long i) { return "0x"+Long.toHexString(i); }
}
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