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https://github.com/NationalSecurityAgency/ghidra.git
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GT-2909 AVR8 ELF import and pcode test improvements
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ghidra1
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/* ###
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* IP: GHIDRA
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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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package ghidra.app.util.bin.format.elf;
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public class AVR8_ElfRelocationConstants {
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public static final int R_AVR_NONE = 0;
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public static final int R_AVR_32 = 1;
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public static final int R_AVR_7_PCREL = 2;
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public static final int R_AVR_13_PCREL = 3;
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public static final int R_AVR_16 = 4;
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public static final int R_AVR_16_PM = 5;
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public static final int R_AVR_LO8_LDI = 6;
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public static final int R_AVR_HI8_LDI = 7;
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public static final int R_AVR_HH8_LDI = 8;
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public static final int R_AVR_LO8_LDI_NEG = 9;
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public static final int R_AVR_HI8_LDI_NEG = 10;
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public static final int R_AVR_HH8_LDI_NEG = 11;
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public static final int R_AVR_LO8_LDI_PM = 12;
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public static final int R_AVR_HI8_LDI_PM = 13;
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public static final int R_AVR_HH8_LDI_PM = 14;
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public static final int R_AVR_LO8_LDI_PM_NEG = 15;
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public static final int R_AVR_HI8_LDI_PM_NEG = 16;
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public static final int R_AVR_HH8_LDI_PM_NEG = 17;
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public static final int R_AVR_CALL = 18;
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public static final int R_AVR_LDI = 19;
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public static final int R_AVR_6 = 20;
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public static final int R_AVR_6_ADIW = 21;
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public static final int R_AVR_MS8_LDI = 22;
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public static final int R_AVR_MS8_LDI_NEG = 23;
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public static final int R_AVR_LO8_LDI_GS = 24;
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public static final int R_AVR_HI8_LDI_GS = 25;
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public static final int R_AVR_8 = 26;
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public static final int R_AVR_8_LO8 = 27;
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public static final int R_AVR_8_HI8 = 28;
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public static final int R_AVR_8_HLO8 = 29;
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public static final int R_AVR_DIFF8 = 30;
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public static final int R_AVR_DIFF16 = 31;
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public static final int R_AVR_DIFF32 = 32;
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public static final int R_AVR_LDS_STS_16 = 33;
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public static final int R_AVR_PORT6 = 34;
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public static final int R_AVR_PORT5 = 35;
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}
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+77
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/* ###
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* IP: GHIDRA
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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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package ghidra.app.util.bin.format.elf.extend;
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import ghidra.app.util.bin.format.elf.*;
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import ghidra.program.model.address.AddressSpace;
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import ghidra.program.model.lang.Language;
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public class AVR8_ElfExtension extends ElfExtension {
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// Processor specific flag mask
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public static final int EF_AVR_MACH = 0x7F;
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// bit #7 indicates elf file uses local symbols for relocations
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public static final int EF_AVR_LINKRELAX_PREPARED = 0x80;
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public static final int E_AVR_MACH_AVR1 = 1;
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public static final int E_AVR_MACH_AVR2 = 2;
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public static final int E_AVR_MACH_AVR25 = 25;
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public static final int E_AVR_MACH_AVR3 = 3;
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public static final int E_AVR_MACH_AVR31 = 31;
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public static final int E_AVR_MACH_AVR35 = 35;
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public static final int E_AVR_MACH_AVR4 = 4;
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public static final int E_AVR_MACH_AVR5 = 5;
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public static final int E_AVR_MACH_AVR51 = 51;
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public static final int E_AVR_MACH_AVR6 = 6;
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public static final int E_AVR_MACH_XMEGA1 = 101;
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public static final int E_AVR_MACH_XMEGA2 = 102;
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public static final int E_AVR_MACH_XMEGA3 = 103;
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public static final int E_AVR_MACH_XMEGA4 = 104;
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public static final int E_AVR_MACH_XMEGA5 = 105;
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public static final int E_AVR_MACH_XMEGA6 = 106;
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public static final int E_AVR_MACH_XMEGA7 = 107;
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@Override
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public boolean canHandle(ElfHeader elf) {
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if (elf.e_machine() != ElfConstants.EM_AVR) {
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return false;
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}
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// TODO: limit to specific architectures?
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return true;
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}
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@Override
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public boolean canHandle(ElfLoadHelper elfLoadHelper) {
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Language language = elfLoadHelper.getProgram().getLanguage();
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return canHandle(elfLoadHelper.getElfHeader()) &&
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"AVR8".equals(language.getProcessor().toString());
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}
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@Override
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public String getDataTypeSuffix() {
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return "_AVR";
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}
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@Override
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public long getAdjustedMemoryOffset(long elfOffset, AddressSpace space) {
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if ("code".equals(space.getName())) {
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elfOffset >>= 1; // code space modeled with wordsize=2 which differs from ELF model
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}
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return elfOffset;
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}
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}
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+61
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/* ###
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* IP: GHIDRA
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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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package ghidra.test.processors;
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import ghidra.framework.options.Options;
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import ghidra.program.model.listing.Program;
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import ghidra.test.processors.support.EmulatorTestRunner;
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import ghidra.test.processors.support.ProcessorEmulatorTestAdapter;
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import junit.framework.Test;
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public class AVR8_xmega_GCC_O0_EmulatorTest extends ProcessorEmulatorTestAdapter {
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private static final String LANGUAGE_ID = "avr8:LE:24:xmega";
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private static final String COMPILER_SPEC_ID = "gcc";
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private static final String[] REG_DUMP_SET = new String[] {};
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public AVR8_xmega_GCC_O0_EmulatorTest(String name) throws Exception {
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super(name, LANGUAGE_ID, COMPILER_SPEC_ID, REG_DUMP_SET);
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}
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@Override
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protected String getProcessorDesignator() {
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return "AVR8_xmega_GCC_O0";
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}
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@Override
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protected void initializeState(EmulatorTestRunner testRunner, Program program)
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throws Exception {
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// These eliminate "uninitialized register" errors. Not strictly needed, but helps find actual problems.
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testRunner.setRegister("SP", 0x0);
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testRunner.setRegister("R1", 0x0);
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testRunner.setRegister("Y", 0x0);
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testRunner.setRegister("W", 0x0);
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}
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@Override
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protected void setAnalysisOptions(Options analysisOptions) {
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super.setAnalysisOptions(analysisOptions);
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analysisOptions.setBoolean("Reference", false); // too many bad disassemblies
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analysisOptions.setBoolean("Data Reference", false);
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}
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public static Test suite() {
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return ProcessorEmulatorTestAdapter.buildEmulatorTestSuite(
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AVR8_xmega_GCC_O0_EmulatorTest.class);
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}
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}
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+61
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/* ###
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* IP: GHIDRA
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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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package ghidra.test.processors;
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import ghidra.framework.options.Options;
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import ghidra.program.model.listing.Program;
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import ghidra.test.processors.support.EmulatorTestRunner;
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import ghidra.test.processors.support.ProcessorEmulatorTestAdapter;
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import junit.framework.Test;
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public class AVR8_xmega_GCC_O3_EmulatorTest extends ProcessorEmulatorTestAdapter {
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private static final String LANGUAGE_ID = "avr8:LE:24:xmega";
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private static final String COMPILER_SPEC_ID = "gcc";
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private static final String[] REG_DUMP_SET = new String[] {};
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public AVR8_xmega_GCC_O3_EmulatorTest(String name) throws Exception {
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super(name, LANGUAGE_ID, COMPILER_SPEC_ID, REG_DUMP_SET);
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}
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@Override
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protected String getProcessorDesignator() {
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return "AVR8_xmega_GCC_O3";
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}
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@Override
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protected void initializeState(EmulatorTestRunner testRunner, Program program)
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throws Exception {
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// These eliminate "uninitialized register" errors. Not strictly needed, but helps find actual problems.
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testRunner.setRegister("SP", 0x0);
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testRunner.setRegister("R1", 0x0);
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testRunner.setRegister("Y", 0x0);
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testRunner.setRegister("W", 0x0);
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}
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@Override
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protected void setAnalysisOptions(Options analysisOptions) {
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super.setAnalysisOptions(analysisOptions);
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analysisOptions.setBoolean("Reference", false); // too many bad disassemblies
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analysisOptions.setBoolean("Data Reference", false);
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}
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public static Test suite() {
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return ProcessorEmulatorTestAdapter.buildEmulatorTestSuite(
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AVR8_xmega_GCC_O3_EmulatorTest.class);
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}
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}
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