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GP-0 Minor revision to ELF relocation handlers

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ghidra1 2024-04-01 17:09:44 -04:00
parent 42c17a20f8
commit 01087ba0a8
13 changed files with 348 additions and 281 deletions
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17
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/relocation/AbstractElfRelocationHandler.java
View file

@ -155,6 +155,23 @@ abstract public class AbstractElfRelocationHandler<T extends ElfRelocationType,
return relocationType.name() + " (" + typeId + ", 0x" + Integer.toHexString(typeId) + ")";
}
/**
* Generate error log entry and bookmark at relocationAddress indicating an unspportable
* COPY relocation. A warning is produced for this COPY relocation failure.
* @param program program
* @param relocationAddress relocation address to be bookmarked
* @param relocationType relocation type
* @param symbolIndex associated symbol index within symbol table
* @param symbolName associated symbol name
* @param symbolSize number of bytes associated with symbol that failed to be copied
* @param log import log
*/
protected void markAsUnsupportedCopy(Program program, Address relocationAddress,
T relocationType, String symbolName, int symbolIndex, long symbolSize, MessageLog log) {
markAsWarning(program, relocationAddress, relocationType, symbolName, symbolIndex,
"Runtime copy not supported (" + symbolSize + "-bytes)", log);
}
/**
* Generate error log entry and bookmark at relocationAddress indicating
* an unhandled relocation.

4
Ghidra/Processors/AARCH64/src/main/java/ghidra/app/util/bin/format/elf/relocation/AARCH64_ElfRelocationHandler.java
View file

@ -359,8 +359,8 @@ public class AARCH64_ElfRelocationHandler
case R_AARCH64_P32_COPY:
case R_AARCH64_COPY: {
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
}

4
Ghidra/Processors/ARM/src/main/java/ghidra/app/util/bin/format/elf/relocation/ARM_ElfRelocationHandler.java
View file

@ -681,8 +681,8 @@ public class ARM_ElfRelocationHandler
*/
case R_ARM_COPY: {
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
}

9
Ghidra/Processors/Loongarch/src/main/java/ghidra/app/util/bin/format/elf/relocation/Loongarch_ElfRelocationHandler.java
View file

@ -38,6 +38,11 @@ public class Loongarch_ElfRelocationHandler
return elf.e_machine() == ElfConstants.EM_LOONGARCH;
}
@Override
public int getRelrRelocationType() {
return Loongarch_ElfRelocationType.R_LARCH_RELATIVE.typeId;
}
@Override
protected RelocationResult relocate(ElfRelocationContext<?> elfRelocationContext,
ElfRelocation relocation, Loongarch_ElfRelocationType type, Address relocationAddress,
@ -106,8 +111,8 @@ public class Loongarch_ElfRelocationHandler
case R_LARCH_COPY:
// Runtime memory copy in executable memcpy (PC, RtAddr, sizeof (sym))
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_LARCH_JUMP_SLOT:

4
Ghidra/Processors/MIPS/src/main/java/ghidra/app/util/bin/format/elf/relocation/MIPS_ElfRelocationHandler.java
View file

@ -608,8 +608,8 @@ public class MIPS_ElfRelocationHandler
case R_MIPS_COPY:
// TODO: Requires symbol lookup into dynamic library - not sure what we can do here
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", log);
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
elfSymbol.getSize(), elfRelocationContext.getLog());
if (saveValue) {
elfRelocationContext.savedAddendHasError = true;
}

9
Ghidra/Processors/PowerPC/src/main/java/ghidra/app/util/bin/format/elf/relocation/PowerPC64_ElfRelocationHandler.java
View file

@ -49,6 +49,11 @@ public class PowerPC64_ElfRelocationHandler
return elf.e_machine() == ElfConstants.EM_PPC64 && elf.is64Bit();
}
@Override
public int getRelrRelocationType() {
return PowerPC64_ElfRelocationType.R_PPC64_RELATIVE.typeId;
}
@Override
protected RelocationResult relocate(ElfRelocationContext<?> elfRelocationContext,
ElfRelocation relocation, PowerPC64_ElfRelocationType type, Address relocationAddress,
@ -100,8 +105,8 @@ public class PowerPC64_ElfRelocationHandler
switch (type) {
case R_PPC64_COPY:
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_PPC64_ADDR32:
newValue = (int) (symbolValue + addend);

11
Ghidra/Processors/PowerPC/src/main/java/ghidra/app/util/bin/format/elf/relocation/PowerPC_ElfRelocationHandler.java
View file

@ -53,6 +53,11 @@ public class PowerPC_ElfRelocationHandler extends
return new PowerPC_ElfRelocationContext(this, loadHelper, symbolMap);
}
@Override
public int getRelrRelocationType() {
return PowerPC_ElfRelocationType.R_PPC_RELATIVE.typeId;
}
@Override
protected RelocationResult relocate(PowerPC_ElfRelocationContext elfRelocationContext,
ElfRelocation relocation, PowerPC_ElfRelocationType type, Address relocationAddress,
@ -87,9 +92,9 @@ public class PowerPC_ElfRelocationHandler extends
switch (type) {
case R_PPC_COPY:
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
return RelocationResult.SKIPPED;
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_PPC_ADDR32:
case R_PPC_UADDR32:
case R_PPC_GLOB_DAT:

9
Ghidra/Processors/RISCV/src/main/java/ghidra/app/util/bin/format/elf/relocation/RISCV_ElfRelocationHandler.java
View file

@ -71,6 +71,11 @@ public class RISCV_ElfRelocationHandler
return new RISCV_ElfRelocationContext(this, loadHelper, symbolMap);
}
@Override
public int getRelrRelocationType() {
return RISCV_ElfRelocationType.R_RISCV_RELATIVE.typeId;
}
/**
* Get the adjusted 20 high bits of a 32 bit target. The lower 12 bits will
* be found in a later instruction, using a sign-extended signed addition. If those
@ -201,8 +206,8 @@ public class RISCV_ElfRelocationHandler
case R_RISCV_COPY:
// Runtime relocation must be in executable. not allowed in shared library
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_RISCV_JUMP_SLOT:

4
Ghidra/Processors/Sparc/src/main/java/ghidra/app/util/bin/format/elf/relocation/SPARC_ElfRelocationHandler.java
View file

@ -96,8 +96,8 @@ public class SPARC_ElfRelocationHandler
memory.setInt(relocationAddress, newValue);
break;
case R_SPARC_COPY:
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
default:
markAsUnhandled(program, relocationAddress, type, symbolIndex, symbolName,

4
Ghidra/Processors/SuperH4/src/main/java/ghidra/app/util/bin/format/elf/relocation/SH_ElfRelocationHandler.java
View file

@ -124,8 +124,8 @@ public class SH_ElfRelocationHandler
break;
case R_SH_COPY:
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_SH_RELATIVE:

536
Ghidra/Processors/tricore/src/main/java/ghidra/app/util/bin/format/elf/relocation/Tricore_ElfRelocationHandler.java
View file

@ -15,33 +15,35 @@
*/
package ghidra.app.util.bin.format.elf.relocation;
import ghidra.app.util.bin.format.elf.ElfConstants;
import ghidra.app.util.bin.format.elf.ElfHeader;
import ghidra.app.util.bin.format.elf.ElfRelocation;
import ghidra.app.util.bin.format.elf.ElfSymbol;
import ghidra.app.util.bin.format.elf.*;
import ghidra.program.model.address.Address;
import ghidra.program.model.listing.Program;
import ghidra.program.model.mem.Memory;
import ghidra.program.model.mem.MemoryAccessException;
import ghidra.program.model.reloc.RelocationResult;
import ghidra.program.model.reloc.Relocation.Status;
import ghidra.program.model.reloc.RelocationResult;
import ghidra.util.exception.NotFoundException;
public class Tricore_ElfRelocationHandler
extends AbstractElfRelocationHandler<Tricore_ElfRelocationType, ElfRelocationContext<?>> {
extends AbstractElfRelocationHandler<Tricore_ElfRelocationType, ElfRelocationContext<?>> {
/**
* Constructor
*/
public Tricore_ElfRelocationHandler() {
* Constructor
*/
public Tricore_ElfRelocationHandler() {
super(Tricore_ElfRelocationType.class);
}
}
@Override
@Override
public boolean canRelocate(ElfHeader elf) {
return elf.e_machine() == ElfConstants.EM_TRICORE;
}
@Override
public int getRelrRelocationType() {
return Tricore_ElfRelocationType.R_TRICORE_RELATIVE.typeId;
}
@Override
protected RelocationResult relocate(ElfRelocationContext<?> elfRelocationContext,
ElfRelocation relocation, Tricore_ElfRelocationType type, Address relocationAddress,
@ -51,7 +53,8 @@ public class Tricore_ElfRelocationHandler
Program program = elfRelocationContext.getProgram();
Memory memory = program.getMemory();
long addend = relocation.hasAddend() ? relocation.getAddend() : memory.getInt(relocationAddress);
long addend =
relocation.hasAddend() ? relocation.getAddend() : memory.getInt(relocationAddress);
long offset = relocationAddress.getOffset();
int symbolIndex = relocation.getSymbolIndex();
@ -66,236 +69,245 @@ public class Tricore_ElfRelocationHandler
* register A[0].
*/
switch (type) {
case R_TRICORE_32REL: // word32 S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case R_TRICORE_32ABS: // word32 S + A
rv = symbolValue + addend;
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case R_TRICORE_24REL: // relB S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_relB(memory, relocationAddress, rv);
break;
case R_TRICORE_24ABS: // absB S + A
rv = symbolValue + addend;
byteLength = relocate_absB(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_16SM: // BOL S + A - A[0]
break;
**/
case R_TRICORE_HI: // RLC S + A + 8000H >> 16
rv = (symbolValue + addend + 0x8000) >> 16;
byteLength = relocate_RLC(memory, relocationAddress, rv);
break;
case R_TRICORE_LO: // RLC S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_RLC(memory, relocationAddress, rv);
break;
case R_TRICORE_LO2: // BOL S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
case R_TRICORE_18ABS: // ABS S + A
rv = symbolValue + addend;
byteLength = relocate_ABS(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_10SM: // BO S + A - A[0]
break;
**/
case R_TRICORE_15REL: // BR S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_BR(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_10LI: // BO S + A - A[1]
break;
case R_TRICORE_16LI: // BOL S + A - A[1]
break;
case R_TRICORE_10A8: // BO S + A - A[8]
break;
case R_TRICORE_16A8: // BOL S + A - A[8]
break;
case R_TRICORE_10A9: // BO S + A - A[9]
break;
case R_TRICORE_16A9: // BOL S + A - A[9]
break;
case R_TRICORE_10OFF:
break;
**/
case R_TRICORE_16OFF:
rv = symbolValue + addend;
byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_8ABS:
break;
case R_TRICORE_16ABS:
break;
case R_TRICORE_16BIT:
break;
**/
case R_TRICORE_3POS:
rv = symbolValue + addend;
byteLength = relocate_3POS(memory, relocationAddress, rv);
break;
case R_TRICORE_5POS:
rv = symbolValue + addend;
byteLength = relocate_5POS(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPHI: // word16 S + A >> 16
rv = (symbolValue + addend) >> 16;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPLO: // word16 S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPPAGE: // pcpPage S + A & FF00H
rv = (symbolValue + addend) & 0xff00;
byteLength = relocate_pcpPage(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPOFF: // PI (S + A >> 2) & 3FH
rv = ((symbolValue + addend) >> 2) & 0x3f;
byteLength = relocate_PI(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPTEXT: // word16 (S + A >> 1) & FFFFH
rv = ((symbolValue + addend) >> 1) & 0xffff;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case R_TRICORE_5POS2:
rv = (symbolValue + addend);
byteLength = relocate_5POS2(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_BRCC:
break;
case R_TRICORE_BRCZ:
break;
case R_TRICORE_BRNN:
break;
case R_TRICORE_RRN:
break;
case R_TRICORE_4CONST:
break;
case R_TRICORE_4REL:
break;
case R_TRICORE_4REL2:
break;
case R_TRICORE_5POS3:
break;
case R_TRICORE_4OFF:
break;
case R_TRICORE_4OFF2:
break;
case R_TRICORE_4OFF4:
break;
case R_TRICORE_42OFF:
break;
case R_TRICORE_42OFF2:
break;
case R_TRICORE_42OFF4:
break;
case R_TRICORE_2OFF:
break;
case R_TRICORE_8CONST2:
break;
case R_TRICORE_4POS:
break;
case R_TRICORE_16SM2:
break;
case R_TRICORE_5REL:
break;
case R_TRICORE_VTENTRY:
break;
case R_TRICORE_VTINHERIT:
break;
case R_TRICORE_PCREL16:
break;
case R_TRICORE_PCREL8:
break;
case R_TRICORE_GOT:
break;
case R_TRICORE_GOT2:
break;
case R_TRICORE_GOTHI:
break;
case R_TRICORE_GOTLO:
break;
case R_TRICORE_GOTLO2:
break;
case R_TRICORE_GOTUP:
break;
case R_TRICORE_GOTOFF:
break;
case R_TRICORE_GOTOFF2:
break;
case R_TRICORE_GOTOFFHI:
break;
case R_TRICORE_GOTOFFLO:
break;
case R_TRICORE_GOTOFFLO2:
break;
case R_TRICORE_GOTOFFUP:
break;
case R_TRICORE_GOTPC:
break;
case R_TRICORE_GOTPC2:
break;
case R_TRICORE_GOTPCHI:
break;
case R_TRICORE_GOTPCLO:
break;
case R_TRICORE_GOTPCLO2:
break;
case R_TRICORE_GOTCPUP:
break;
case R_TRICORE_PLT:
break;
case R_TRICORE_COPY:
break;
case R_TRICORE_GLOB_DAT:
break;
case R_TRICORE_JMP_SLOT:
break;
case R_TRICORE_RELATIVE:
break;
**/
case R_TRICORE_BITPOS:
// This reads as a pseudo relocation, possibly do RelocationResult.PARTIAL instead?
return RelocationResult.SKIPPED;
/**
case R_TRICORE_SBREG_S2:
break;
case R_TRICORE_SBREG_S1:
break;
case R_TRICORE_SBREG_D:
break;
**/
default:
break;
case R_TRICORE_32REL: // word32 S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case R_TRICORE_32ABS: // word32 S + A
rv = symbolValue + addend;
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case R_TRICORE_24REL: // relB S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_relB(memory, relocationAddress, rv);
break;
case R_TRICORE_24ABS: // absB S + A
rv = symbolValue + addend;
byteLength = relocate_absB(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_16SM: // BOL S + A - A[0]
break;
**/
case R_TRICORE_HI: // RLC S + A + 8000H >> 16
rv = (symbolValue + addend + 0x8000) >> 16;
byteLength = relocate_RLC(memory, relocationAddress, rv);
break;
case R_TRICORE_LO: // RLC S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_RLC(memory, relocationAddress, rv);
break;
case R_TRICORE_LO2: // BOL S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
case R_TRICORE_18ABS: // ABS S + A
rv = symbolValue + addend;
byteLength = relocate_ABS(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_10SM: // BO S + A - A[0]
break;
**/
case R_TRICORE_15REL: // BR S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_BR(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_10LI: // BO S + A - A[1]
break;
case R_TRICORE_16LI: // BOL S + A - A[1]
break;
case R_TRICORE_10A8: // BO S + A - A[8]
break;
case R_TRICORE_16A8: // BOL S + A - A[8]
break;
case R_TRICORE_10A9: // BO S + A - A[9]
break;
case R_TRICORE_16A9: // BOL S + A - A[9]
break;
case R_TRICORE_10OFF:
break;
**/
case R_TRICORE_16OFF:
rv = symbolValue + addend;
byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_8ABS:
break;
case R_TRICORE_16ABS:
break;
case R_TRICORE_16BIT:
break;
**/
case R_TRICORE_3POS:
rv = symbolValue + addend;
byteLength = relocate_3POS(memory, relocationAddress, rv);
break;
case R_TRICORE_5POS:
rv = symbolValue + addend;
byteLength = relocate_5POS(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPHI: // word16 S + A >> 16
rv = (symbolValue + addend) >> 16;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPLO: // word16 S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPPAGE: // pcpPage S + A & FF00H
rv = (symbolValue + addend) & 0xff00;
byteLength = relocate_pcpPage(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPOFF: // PI (S + A >> 2) & 3FH
rv = ((symbolValue + addend) >> 2) & 0x3f;
byteLength = relocate_PI(memory, relocationAddress, rv);
break;
case R_TRICORE_PCPTEXT: // word16 (S + A >> 1) & FFFFH
rv = ((symbolValue + addend) >> 1) & 0xffff;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case R_TRICORE_5POS2:
rv = (symbolValue + addend);
byteLength = relocate_5POS2(memory, relocationAddress, rv);
break;
/**
case R_TRICORE_BRCC:
break;
case R_TRICORE_BRCZ:
break;
case R_TRICORE_BRNN:
break;
case R_TRICORE_RRN:
break;
case R_TRICORE_4CONST:
break;
case R_TRICORE_4REL:
break;
case R_TRICORE_4REL2:
break;
case R_TRICORE_5POS3:
break;
case R_TRICORE_4OFF:
break;
case R_TRICORE_4OFF2:
break;
case R_TRICORE_4OFF4:
break;
case R_TRICORE_42OFF:
break;
case R_TRICORE_42OFF2:
break;
case R_TRICORE_42OFF4:
break;
case R_TRICORE_2OFF:
break;
case R_TRICORE_8CONST2:
break;
case R_TRICORE_4POS:
break;
case R_TRICORE_16SM2:
break;
case R_TRICORE_5REL:
break;
case R_TRICORE_VTENTRY:
break;
case R_TRICORE_VTINHERIT:
break;
case R_TRICORE_PCREL16:
break;
case R_TRICORE_PCREL8:
break;
case R_TRICORE_GOT:
break;
case R_TRICORE_GOT2:
break;
case R_TRICORE_GOTHI:
break;
case R_TRICORE_GOTLO:
break;
case R_TRICORE_GOTLO2:
break;
case R_TRICORE_GOTUP:
break;
case R_TRICORE_GOTOFF:
break;
case R_TRICORE_GOTOFF2:
break;
case R_TRICORE_GOTOFFHI:
break;
case R_TRICORE_GOTOFFLO:
break;
case R_TRICORE_GOTOFFLO2:
break;
case R_TRICORE_GOTOFFUP:
break;
case R_TRICORE_GOTPC:
break;
case R_TRICORE_GOTPC2:
break;
case R_TRICORE_GOTPCHI:
break;
case R_TRICORE_GOTPCLO:
break;
case R_TRICORE_GOTPCLO2:
break;
case R_TRICORE_GOTCPUP:
break;
case R_TRICORE_PLT:
break;
**/
case R_TRICORE_GLOB_DAT:
case R_TRICORE_JMP_SLOT:
memory.setInt(relocationAddress, (int) symbolValue);
break;
case R_TRICORE_RELATIVE:
long base = program.getImageBase().getOffset();
rv = (int) (base + addend);
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case R_TRICORE_COPY:
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_TRICORE_BITPOS:
// This reads as a pseudo relocation, possibly do RelocationResult.PARTIAL instead?
return RelocationResult.SKIPPED;
/**
case R_TRICORE_SBREG_S2:
break;
case R_TRICORE_SBREG_S1:
break;
case R_TRICORE_SBREG_D:
break;
**/
default:
break;
}
if (byteLength <= 0) {
markAsUnhandled(program, relocationAddress, type, symbolIndex, symbolName, elfRelocationContext.getLog());
markAsUnhandled(program, relocationAddress, type, symbolIndex, symbolName,
elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
}
return new RelocationResult(Status.APPLIED, byteLength);
}
@ -309,7 +321,8 @@ public class Tricore_ElfRelocationHandler
* A 32-bit field occupying four bytes. This address is NOT required to be
* 4-byte aligned.
*/
private int relocate_word32(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_word32(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
memory.setInt(relocationAddress, (int) rv);
return 4;
}
@ -317,7 +330,8 @@ public class Tricore_ElfRelocationHandler
/**
* A 16-bit field occupying two bytes.
*/
private int relocate_word16(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_word16(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
memory.setShort(relocationAddress, (short) rv);
return 2;
}
@ -327,7 +341,8 @@ public class Tricore_ElfRelocationHandler
* the IW. - bits 17-24 of the RV go into bits 8-15 of the IW. - the RV must be
* in the range [-16777216,16777214]. bit 0 of the RV must be zero.
*/
private int relocate_relB(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_relB(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
// TODO ff000000..00fffffe?
long mask = 0xfffffffeL;
long val = ~mask & rv;
@ -344,7 +359,8 @@ public class Tricore_ElfRelocationHandler
* to 27 of the RV must be zero. - bits 28-31 of the RV go into bits 12-15 of
* the IW.
*/
private int relocate_absB(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_absB(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0x0fe00001L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xff;
@ -361,7 +377,8 @@ public class Tricore_ElfRelocationHandler
* the RV must be zero.
*/
@SuppressWarnings("unused")
private int relocate_BO(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_BO(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xfffffc00L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xfc0ffff;
@ -376,7 +393,8 @@ public class Tricore_ElfRelocationHandler
* the IW. - bits 6-9 of the RV go into bits 28-31 of the IW. - bits 10-15 of
* the RV go into bits 22-27 of the IW. - bits 16-31 of the RV must be zero.
*/
private int relocate_BOL(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_BOL(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffff0000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xffff;
@ -391,7 +409,8 @@ public class Tricore_ElfRelocationHandler
* A 32-bit instruction word, where: - bits 1-15 of the RV go into bits 16-30 of
* the IW. - bits 16-31 of the RV must be zero.
*/
private int relocate_BR(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_BR(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffff0000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0x8000ffff;
@ -404,7 +423,8 @@ public class Tricore_ElfRelocationHandler
* A 32-bit instruction word, where: - bits 0-15 of the RV go into bits 12-27 of
* the IW. - bits 16-31 of the RV must be zero.
*/
private int relocate_RLC(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_RLC(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffff0000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xf0000fff;
@ -419,7 +439,8 @@ public class Tricore_ElfRelocationHandler
* the RV go into bits 22-25 of the IW. - bits 14-27 of the RV must be zero. -
* bits 28-31 of the RV go into bits 12-15 of the IW.
*/
private int relocate_ABS(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_ABS(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0x0fffc000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xc000fff;
@ -449,7 +470,8 @@ public class Tricore_ElfRelocationHandler
* A 16-bit instruction word, where: - bits 8-15 of the RV go into bits 8-15 of
* the IW. - bits 0-7 and 16-31 of the RV must be zero.
*/
private int relocate_pcpPage(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_pcpPage(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffff00ffL;
long val = ~mask & rv;
int iw = memory.getShort(relocationAddress) & 0xff;
@ -462,7 +484,8 @@ public class Tricore_ElfRelocationHandler
* A 16-bit instruction word, where: - bits 0-5 of the RV go into bits 0-5 of
* the IW. - bits 6-15 of the RV must be zero.
*/
private int relocate_PI(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_PI(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffffffc0L;
long val = ~mask & rv;
int iw = memory.getShort(relocationAddress) & 0xffc0;
@ -470,11 +493,12 @@ public class Tricore_ElfRelocationHandler
memory.setShort(relocationAddress, (short) iw);
return 2;
}
/**
*
*/
private int relocate_3POS(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_3POS(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xfffffff8L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress);
@ -482,11 +506,12 @@ public class Tricore_ElfRelocationHandler
memory.setInt(relocationAddress, iw);
return 4;
}
/**
*
*/
private int relocate_5POS(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_5POS(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffffffe0L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress);
@ -494,11 +519,12 @@ public class Tricore_ElfRelocationHandler
memory.setInt(relocationAddress, iw);
return 4;
}
/**
*
*/
private int relocate_5POS2(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
private int relocate_5POS2(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException {
long mask = 0xffffffe0L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress);

8
Ghidra/Processors/x86/src/main/java/ghidra/app/util/bin/format/elf/relocation/X86_32_ElfRelocationHandler.java
View file

@ -99,12 +99,13 @@ public class X86_32_ElfRelocationHandler
catch (NotFoundException e) {
markAsError(program, relocationAddress, type, symbolName, symbolIndex,
e.getMessage(), elfRelocationContext.getLog());
return RelocationResult.FAILURE;
}
break;
case R_386_COPY:
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
break;
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
// Thread Local Symbol relocations (unimplemented concept)
case R_386_TLS_DTPMOD32:
case R_386_TLS_DTPOFF32:
@ -146,6 +147,7 @@ public class X86_32_ElfRelocationHandler
catch (NotFoundException e) {
markAsError(program, relocationAddress, type, symbolName, symbolIndex,
e.getMessage(), elfRelocationContext.getLog());
return RelocationResult.FAILURE;
}
break;

10
Ghidra/Processors/x86/src/main/java/ghidra/app/util/bin/format/elf/relocation/X86_64_ElfRelocationHandler.java
View file

@ -69,8 +69,8 @@ public class X86_64_ElfRelocationHandler extends
switch (type) {
case R_X86_64_COPY:
markAsWarning(program, relocationAddress, type, symbolName, symbolIndex,
"Runtime copy not supported", elfRelocationContext.getLog());
markAsUnsupportedCopy(program, relocationAddress, type, symbolName, symbolIndex,
sym.getSize(), elfRelocationContext.getLog());
return RelocationResult.UNSUPPORTED;
case R_X86_64_64:
value = symbolValue + addend;
@ -135,6 +135,7 @@ public class X86_64_ElfRelocationHandler extends
catch (NotFoundException e) {
markAsError(program, relocationAddress, type, symbolName, symbolIndex,
e.getMessage(), elfRelocationContext.getLog());
return RelocationResult.FAILURE;
}
break;
case R_X86_64_32: // this one complains for unsigned overflow
@ -176,6 +177,7 @@ public class X86_64_ElfRelocationHandler extends
catch (NotFoundException e) {
markAsError(program, relocationAddress, type, symbolName, symbolIndex,
e.getMessage(), elfRelocationContext.getLog());
return RelocationResult.FAILURE;
}
break;
@ -239,7 +241,7 @@ public class X86_64_ElfRelocationHandler extends
if (symbolGotAddress == null) {
markAsError(program, relocationAddress, type, symbolName, symbolIndex,
"GOT allocation failure", elfRelocationContext.getLog());
break;
return RelocationResult.FAILURE;
}
value = symbolGotAddress.getOffset() + addend - offset;
memory.setInt(relocationAddress, (int) value);
@ -251,7 +253,7 @@ public class X86_64_ElfRelocationHandler extends
if (symbolGotAddress == null) {
markAsError(program, relocationAddress, type, symbolName, symbolIndex,
"GOT allocation failure", elfRelocationContext.getLog());
break;
return RelocationResult.FAILURE;
}
value = symbolGotAddress.getOffset() + addend - offset;
memory.setLong(relocationAddress, value);