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tricore analysis

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mumbel
2024-01-07 17:36:51 -06:00
parent 4e89a2ec6d
commit e024e6536d
5 changed files with 801 additions and 3 deletions
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3
Ghidra/Processors/tricore/data/languages/tricore.pspec
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@@ -7,7 +7,4 @@
</properties>
<programcounter register="PC"/>
<volatile outputop="write" inputop="read">
<range space="ram" first="0x0" last="0x20"/>
</volatile>
</processor_spec>

5
Ghidra/Processors/tricore/data/patterns/patternconstraints.xml Normal file
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<patternconstraints>
<language id="tricore:LE:32:*">
<patternfile>tricore_patterns.xml</patternfile>
</language>
</patternconstraints>

31
Ghidra/Processors/tricore/data/patterns/tricore_patterns.xml Normal file
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<patternlist>
<patternpairs totalbits="32" postbits="16">
<prepatterns>
<data>00000000 10010000</data> <!-- ret -->>
<data>10011101 ........ ........ ........</data> <!-- ja disp24 -->>
<data>00011101 ........ ........ ........</data> <!-- j disp24 -->>
<data>11011100 00001011</data> <!-- ji a11 -->>
<data>00101101 00001011 00000000 00110000</data> <!-- ji a11 -->>
<data>00111100 ........</data> <!-- j disp8 -->>
</prepatterns>
<postpatterns>
<data>00000010 ........</data> <!-- sub.a a10, const8 -->>
<data>00000101 ....1111 ........ ....01..</data> <!-- ld.bu d15, off18 -->>
<data>00001100 ........</data> <!-- ld.bu d15, [aN], off4 -->>
<data>00111011 ....0000 ........ 1111....</data> <!-- mov d15, const16 -->>
<data>00111011 ....0000 ........ 0100....</data> <!-- mov d4, const16 -->>
<data>00111011 ....0000 ........ 1000....</data> <!-- mov d8, const16 -->>
<data>10000010 ....1111</data> <!-- mov d15, const4 -->>
<data>10000010 ....0100</data> <!-- mov d4, const4 -->>
<data>10000010 ....1000</data> <!-- mov d8, const4 -->>
<data>01111101 ....0000 ........ 1111....</data> <!-- movh d15, const16 -->>
<data>10010001 ....0000 ........ 1111....</data> <!-- movh.a a15, const16 -->>
<data>01111101 ....0000 ........ 0100....</data> <!-- movh d4, const16 -->>
<data>01111101 ....0000 ........ 1000....</data> <!-- movh d8, const16 -->>
<data>11011010 ........</data> <!-- mov d15, const8 -->>
<data>00011101 ........ ........ ........</data> <!-- j disp24 (thunk detection) -->>
<data>10000101 ....1111 ........ ....00..</data> <!-- ld.w d15, off18 -->>
<funcstart/>
</postpatterns>
</patternpairs>
</patternlist>

140
Ghidra/Processors/tricore/src/main/java/ghidra/app/util/bin/format/elf/relocation/TRICOREElfRelocationConstants.java Normal file
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/* ###
* IP: GHIDRA
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ghidra.app.util.bin.format.elf.relocation;
public class TRICOREElfRelocationConstants {
// e_flags Identifying TriCore/PCP Derivatives
public static final int EF_TRICORE_V1_1 = 0x80000000;
public static final int EF_TRICORE_V1_2 = 0x40000000;
public static final int EF_TRICORE_V1_3 = 0x20000000;
public static final int EF_TRICORE_PCP2 = 0x02000000;
// TriCore Section Attribute Flags
public static final int SHF_TRICORE_ABS = 0x400;
public static final int SHF_TRICORE_NOREAD = 0x800;
public static final int R_TRICORE_NONE = 0; // none none
public static final int R_TRICORE_32REL = 1; // word32 S + A - P
public static final int R_TRICORE_32ABS = 2; // word32 S + A
public static final int R_TRICORE_24REL = 3; // relB S + A - P
public static final int R_TRICORE_24ABS = 4; // absB S + A
public static final int R_TRICORE_16SM = 5; // BOL S + A - A[0]
public static final int R_TRICORE_HI = 6; // RLC S + A + 8000H >> 16
public static final int R_TRICORE_LO = 7; // RLC S + A & FFFFH
public static final int R_TRICORE_LO2 = 8; // BOL S + A & FFFFH
public static final int R_TRICORE_18ABS = 9; // ABS S + A
public static final int R_TRICORE_10SM = 10; // BO S + A - A[0]
public static final int R_TRICORE_15REL = 11; // BR S + A - P
/*
* GNU extensions
*/
public static final int R_TRICORE_10LI = 12; // BO S + A - A[1]
public static final int R_TRICORE_16LI = 13; // BOL S + A - A[1]
public static final int R_TRICORE_10A8 = 14; // BO S + A - A[8]
public static final int R_TRICORE_16A8 = 15; // BOL S + A - A[8]
public static final int R_TRICORE_10A9 = 16; // BO S + A - A[9]
public static final int R_TRICORE_16A9 = 17; // BOL S + A - A[9]
public static final int R_TRICORE_10OFF = 18; // BO 10 bit data offset
public static final int R_TRICORE_16OFF = 19; // bolC 16 bit data offset
public static final int R_TRICORE_8ABS = 20; // 8 bit absolute data relocation
public static final int R_TRICORE_16ABS = 21; // 16 bit absolute data relocation
public static final int R_TRICORE_16BIT = 22; // absBb 1 bit relocation
public static final int R_TRICORE_3POS = 23; // absBp 3 bit bit position
public static final int R_TRICORE_5POS = 24; // bitP1 5 bit bit position
/*
* PCP relocations
*/
public static final int R_TRICORE_PCPHI = 25; // word16 S + A >> 16
public static final int R_TRICORE_PCPLO = 26; // word16 S + A & FFFFH
public static final int R_TRICORE_PCPPAGE = 27; // pcpPage S + A & FF00H
public static final int R_TRICORE_PCPOFF = 28; // PI (S + A >> 2) & 3FH
public static final int R_TRICORE_PCPTEXT = 29; // word16 (S + A >> 1) & FFFFH
/*
* More GNU extensions
*/
public static final int R_TRICORE_5POS2 = 30; // bitP2 5 bit bit position
public static final int R_TRICORE_BRCC = 31; // brcC 4 bit signed offset
public static final int R_TRICORE_BRCZ = 32; // brcC2 4 bit unsigned offset
public static final int R_TRICORE_BRNN = 33; // brnN 5 bit bit position
public static final int R_TRICORE_RRN = 34; // rrN 2 bit unsigned constant
public static final int R_TRICORE_4CONST = 35; // sbcC 4 bit signed constant
public static final int R_TRICORE_4REL = 36; // sbcD/sbrD 5 bit PC-relative, zero-extended displacement
public static final int R_TRICORE_4REL2 = 37; // sbrD 5 bit PC-relative, one-extended displacement
public static final int R_TRICORE_5POS3 = 38; // sbrN 5 bit bit position
public static final int R_TRICORE_4OFF = 39; // slroO 4 bit zero-extended offset
public static final int R_TRICORE_4OFF2 = 40; // slroO2 5 bit zero-extended offset
public static final int R_TRICORE_4OFF4 = 41; // slroO4 6 bit zero-extended offset
public static final int R_TRICORE_42OFF = 42; // sroO 4 bit zero-extended offset
public static final int R_TRICORE_42OFF2 = 43; // sroO2 5 bit zero-extended offset
public static final int R_TRICORE_42OFF4 = 44; // slroO4 6 bit zero-extended offset
public static final int R_TRICORE_2OFF = 45; // srrsN 2 bit zero-extended constant
public static final int R_TRICORE_8CONST2 = 46; // scC 8 bit zero-extended offset
public static final int R_TRICORE_4POS = 47; // sbrnN 4 bit zero-extended constant
public static final int R_TRICORE_16SM2 = 48; // rlcC 16 bit small data section relocation
public static final int R_TRICORE_5REL = 49; // sbcD/sbrD 6 bit PC-relative, zero-extended displacement
/*
* GNU extensions to help optimizing virtual tables (C++)
*/
public static final int R_TRICORE_VTENTRY = 50; //
public static final int R_TRICORE_VTINHERIT = 51; //
/*
* Support for shared objects
*/
public static final int R_TRICORE_PCREL16 = 52; // 16 bit PC-relative relocation
public static final int R_TRICORE_PCREL8 = 53; // 8 bit PC-relative relocation
public static final int R_TRICORE_GOT = 54; // rlcC 16 bit GOT symbol entry
public static final int R_TRICORE_GOT2 = 55; // bolC 16 bit GOT symbol entry
public static final int R_TRICORE_GOTHI = 56; // rlcC 16 bit GOTHI symbol entry
public static final int R_TRICORE_GOTLO = 57; // rlcC 16 bit GOTLO symbol entry
public static final int R_TRICORE_GOTLO2 = 58; // bolC 16 bit GOTLO symbol entry
public static final int R_TRICORE_GOTUP = 59; // rlcC 16 bit GOTUP symbol entry
public static final int R_TRICORE_GOTOFF = 60; // rlcC 16 bit GOTOFF symbol entry
public static final int R_TRICORE_GOTOFF2 = 61; // bolC 16 bit GOTOFF symbol entry
public static final int R_TRICORE_GOTOFFHI = 62; // rlcC 16 bit GOTOFFHI symbol entry
public static final int R_TRICORE_GOTOFFLO = 63; // rlcC 16 bit GOTOFFLO symbol entry
public static final int R_TRICORE_GOTOFFLO2 = 64; // bolC 16 bit GOTOFFLO symbol entry
public static final int R_TRICORE_GOTOFFUP = 65; // rlcC 16 bit GOTOFFUP symbol entry
public static final int R_TRICORE_GOTPC = 66; // rlcC 16 bit GOTPC symbol entry
public static final int R_TRICORE_GOTPC2 = 67; // bolC 16 bit GOTPC symbol entry
public static final int R_TRICORE_GOTPCHI = 68; // rlcC 16 bit GOTPCHI symbol entry
public static final int R_TRICORE_GOTPCLO = 69; // rlcC 16 bit GOTPCLO symbol entry
public static final int R_TRICORE_GOTPCLO2 = 70; // bolC 16 bit GOTPCLO symbol entry
public static final int R_TRICORE_GOTCPUP = 71; // rlcC 16 bit GOTPCUP symbol entry
public static final int R_TRICORE_PLT = 72; //relB PLT entry
public static final int R_TRICORE_COPY = 73; // COPY
public static final int R_TRICORE_GLOB_DAT = 74; // GLOB_DAT
public static final int R_TRICORE_JMP_SLOT = 75; // JMP_SLOT
public static final int R_TRICORE_RELATIVE = 76; // RELATIVE
/*
* Support for single bit objects
*/
public static final int R_TRICORE_BITPOS = 77; // BITPOS
/*
* Support for small data addressing areas get the base address of a small data
* symbol
*/
public static final int R_TRICORE_SBREG_S2 = 78; // SMALL DATA Baseregister operand 2
public static final int R_TRICORE_SBREG_S1 = 79; // SMALL DATA Baseregister operand 1
public static final int R_TRICORE_SBREG_D = 80; // SMALL DATA Baseregister destination
}

625
Ghidra/Processors/tricore/src/main/java/ghidra/app/util/bin/format/elf/relocation/TRICOREElfRelocationHandler.java Normal file
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/* ###
* IP: GHIDRA
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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.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.util.Msg;
import ghidra.util.exception.NotFoundException;
public class TRICOREElfRelocationHandler extends ElfRelocationHandler {
@Override
public boolean canRelocate(ElfHeader elf) {
return elf.e_machine() == ElfConstants.EM_TRICORE;
}
@Override
public RelocationResult relocate(ElfRelocationContext elfRelocationContext, ElfRelocation relocation,
Address relocationAddress) throws MemoryAccessException, NotFoundException {
ElfHeader elf = elfRelocationContext.getElfHeader();
if (!canRelocate(elf)) {
return RelocationResult.FAILURE;
}
Program program = elfRelocationContext.getProgram();
Memory memory = program.getMemory();
int type = relocation.getType();
if (TRICOREElfRelocationConstants.R_TRICORE_NONE == type) {
return RelocationResult.SKIPPED;
}
long addend = relocation.hasAddend() ? relocation.getAddend() : memory.getInt(relocationAddress);
long offset = relocationAddress.getOffset();
int symbolIndex = relocation.getSymbolIndex();
long symbolValue = 0;
String symbolName = null;
ElfSymbol symbol = elfRelocationContext.getSymbol(symbolIndex);
if (symbol != null) {
symbolValue = elfRelocationContext.getSymbolValue(symbol);
symbolName = symbol.getNameAsString();
}
long rv = 0;
int byteLength = -1;
/**
* Key S indicates the final value assigned to the symbol referenced in the
* relocation record. Key A is the addend value specified in the relocation
* record. Key P indicates the address of the relocation (for example, the
* address being modified). Key A[0] is the content of the small data base
* register A[0].
*/
switch (type) {
case TRICOREElfRelocationConstants.R_TRICORE_32REL: // word32 S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_32ABS: // word32 S + A
rv = symbolValue + addend;
byteLength = relocate_word32(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_24REL: // relB S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_relB(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_24ABS: // absB S + A
rv = symbolValue + addend;
byteLength = relocate_absB(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_16SM: // BOL S + A - A[0]
//TODO how to get "content of the small data base register A[0]"
markAsWarning(program, relocationAddress, "R_TRICORE_16SM", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_HI: // RLC S + A + 8000H >> 16
rv = (symbolValue + addend + 0x8000) >> 16;
byteLength = relocate_RLC(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_LO: // RLC S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_RLC(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_LO2: // BOL S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_18ABS: // ABS S + A
rv = symbolValue + addend;
byteLength = relocate_ABS(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_10SM: // BO S + A - A[0]
markAsWarning(program, relocationAddress, "R_TRICORE_10SM", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BO(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_15REL: // BR S + A - P
rv = symbolValue + addend - offset;
byteLength = relocate_BR(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_10LI: // BO S + A - A[1]
markAsWarning(program, relocationAddress, "R_TRICORE_10LI", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BO(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_16LI: // BOL S + A - A[1]
markAsWarning(program, relocationAddress, "R_TRICORE_16LI", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_10A8: // BO S + A - A[8]
markAsWarning(program, relocationAddress, "R_TRICORE_10A8", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BO(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_16A8: // BOL S + A - A[8]
markAsWarning(program, relocationAddress, "R_TRICORE_16A8", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_10A9: // BO S + A - A[9]
markAsWarning(program, relocationAddress, "R_TRICORE_16A9", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BO(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_16A9: // BOL S + A - A[9]
markAsWarning(program, relocationAddress, "R_TRICORE_16A9", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_10OFF:
markAsWarning(program, relocationAddress, "R_TRICORE_10OFF", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_16OFF:
rv = symbolValue + addend;
byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_8ABS:
markAsWarning(program, relocationAddress, "R_TRICORE_8ABS", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_16ABS:
markAsWarning(program, relocationAddress, "R_TRICORE_16ABS", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_16BIT:
markAsWarning(program, relocationAddress, "R_TRICORE_16BIT", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_3POS:
rv = symbolValue + addend;
byteLength = relocate_3POS(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_5POS:
rv = symbolValue + addend;
byteLength = relocate_5POS(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCPHI: // word16 S + A >> 16
rv = (symbolValue + addend) >> 16;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCPLO: // word16 S + A & FFFFH
rv = (symbolValue + addend) & 0xffff;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCPPAGE: // pcpPage S + A & FF00H
rv = (symbolValue + addend) & 0xff00;
byteLength = relocate_pcpPage(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCPOFF: // PI (S + A >> 2) & 3FH
rv = ((symbolValue + addend) >> 2) & 0x3f;
byteLength = relocate_PI(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCPTEXT: // word16 (S + A >> 1) & FFFFH
rv = ((symbolValue + addend) >> 1) & 0xffff;
byteLength = relocate_word16(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_5POS2:
rv = (symbolValue + addend);
byteLength = relocate_5POS2(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_BRCC:
markAsWarning(program, relocationAddress, "R_TRICORE_BRCC", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_BRCZ:
markAsWarning(program, relocationAddress, "R_TRICORE_BRCZ", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_BRNN:
markAsWarning(program, relocationAddress, "R_TRICORE_BRNN", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_RRN:
markAsWarning(program, relocationAddress, "R_TRICORE_RRN", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4CONST:
markAsWarning(program, relocationAddress, "R_TRICORE_4CONST", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4REL:
markAsWarning(program, relocationAddress, "R_TRICORE_4REL", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4REL2:
markAsWarning(program, relocationAddress, "R_TRICORE_4REL2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_5POS3:
markAsWarning(program, relocationAddress, "R_TRICORE_5POS3", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4OFF:
markAsWarning(program, relocationAddress, "R_TRICORE_4OFF", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4OFF2:
markAsWarning(program, relocationAddress, "R_TRICORE_4OFF2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4OFF4:
markAsWarning(program, relocationAddress, "R_TRICORE_4OFF4", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_42OFF:
markAsWarning(program, relocationAddress, "R_TRICORE_42OFF", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_42OFF2:
markAsWarning(program, relocationAddress, "R_TRICORE_42OFF2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_42OFF4:
markAsWarning(program, relocationAddress, "R_TRICORE_42OFF4", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_2OFF:
markAsWarning(program, relocationAddress, "R_TRICORE_2OFF", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_8CONST2:
markAsWarning(program, relocationAddress, "R_TRICORE_8CONST2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_4POS:
markAsWarning(program, relocationAddress, "R_TRICORE_4POS", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_16SM2:
markAsWarning(program, relocationAddress, "R_TRICORE_16SM2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
// byteLength = relocate_BOL(memory, relocationAddress, rv);
break;
case TRICOREElfRelocationConstants.R_TRICORE_5REL:
markAsWarning(program, relocationAddress, "R_TRICORE_5REL", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_VTENTRY:
markAsWarning(program, relocationAddress, "R_TRICORE_VTENTRY", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_VTINHERIT:
markAsWarning(program, relocationAddress, "R_TRICORE_VTINHERIT", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCREL16:
markAsWarning(program, relocationAddress, "R_TRICORE_PCREL16", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_PCREL8:
markAsWarning(program, relocationAddress, "R_TRICORE_PCREL8", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOT:
markAsWarning(program, relocationAddress, "R_TRICORE_GOT", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOT2:
markAsWarning(program, relocationAddress, "R_TRICORE_GOT2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTHI:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTHI", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTLO:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTLO", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTLO2:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTLO2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTUP:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTUP", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTOFF:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTOFF", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTOFF2:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTOFF2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTOFFHI:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTOFFHI", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTOFFLO:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTOFFLO", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTOFFLO2:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTOFFLO2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTOFFUP:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTOFFUP", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTPC:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTPC", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTPC2:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTPC2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTPCHI:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTPCHI", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTPCLO:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTPCLO", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTPCLO2:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTPCLO2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GOTCPUP:
markAsWarning(program, relocationAddress, "R_TRICORE_GOTCPUP", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_PLT:
markAsWarning(program, relocationAddress, "R_TRICORE_PLT", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_COPY:
markAsWarning(program, relocationAddress, "R_TRICORE_COPY", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_GLOB_DAT:
markAsWarning(program, relocationAddress, "R_TRICORE_GLOB_DAT", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_JMP_SLOT:
markAsWarning(program, relocationAddress, "R_TRICORE_JMP_SLOT", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_RELATIVE:
markAsWarning(program, relocationAddress, "R_TRICORE_RELATIVE", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_BITPOS:
// This reads as a pseudo relocation, possibly do RelocationResult.PARTIAL instead?
return RelocationResult.SKIPPED;
case TRICOREElfRelocationConstants.R_TRICORE_SBREG_S2:
markAsWarning(program, relocationAddress, "R_TRICORE_SBREG_S2", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_SBREG_S1:
markAsWarning(program, relocationAddress, "R_TRICORE_SBREG_S1", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
case TRICOREElfRelocationConstants.R_TRICORE_SBREG_D:
markAsWarning(program, relocationAddress, "R_TRICORE_SBREG_D", symbolName, symbolIndex,
"TODO, needs support ", elfRelocationContext.getLog());
break;
default:
markAsUnhandled(program, relocationAddress, type, symbolIndex, symbolName, elfRelocationContext.getLog());
break;
}
if (byteLength < 0) {
return RelocationResult.UNSUPPORTED;
}
return new RelocationResult(Status.APPLIED, byteLength);
}
// TODO how bad is this approach, not sure how java handles bit manipulation
// at this level, or just in a general a class exists that excels at these
// operations?
// RV = Relocation Value. IW = Instruction Word.
/**
* 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 {
memory.setInt(relocationAddress, (int) rv);
return 4;
}
/**
* A 16-bit field occupying two bytes.
*/
private int relocate_word16(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
memory.setShort(relocationAddress, (short) rv);
return 2;
}
/**
* A 32-bit instruction word, where: - bits 1-16 of the RV go into bits 16-31 of
* 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 {
// TODO ff000000..00fffffe?
long mask = 0xfffffffeL;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xff;
iw |= ((val & 0x1fffe) << 15);
iw |= ((val & 0x1fe0000) >> 9);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* A 32-bit instruction word, where: - bits 1-16 of the RV go into bits 16-31 of
* the IW. - bits 17-20 of the RV go into bits 8-11 of the IW. - bits 0 and 21
* 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 {
long mask = 0x0fe00001L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xff;
iw |= ((val & 0x1fffe) << 15);
iw |= ((val & 0x1e0000) >> 9);
iw |= ((val & 0xf0000000) >> 16);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* A 32-bit instruction word where: - bits 0-5 of the RV go into bits 16-21 of
* the IW. - bits 6-9 of the RV go into bits 28-31 of the IW. - bits 10-31 of
* the RV must be zero.
*/
@SuppressWarnings("unused")
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;
iw |= ((val & 0x3f) << 16);
iw |= ((val & 0x3c0) << 22);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* A 32-bit instruction word, where: - bits 0-5 of the RV go into bits 16-21 of
* 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 {
long mask = 0xffff0000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xffff;
iw |= ((val & 0x3f) << 16);
iw |= ((val & 0x3c0) << 22);
iw |= ((val & 0xfc00) << 12);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* 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 {
long mask = 0xffff0000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0x8000ffff;
iw |= ((val & 0xfffe) << 15);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* 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 {
long mask = 0xffff0000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xf0000fff;
iw |= ((val & 0xffff) << 12);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* A 32-bit instruction word, where: - bits 0-5 of the RV go into bits 16-21 of
* the IW. - bits 6-9 of the RV go into bits 28-31 of the IW. - bits 10-13 of
* 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 {
long mask = 0x0fffc000L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress) & 0xc000fff;
iw |= ((val & 0x3f) << 16);
iw |= ((val & 0x3c0) << 22);
iw |= ((val & 0x3c00) << 12);
iw |= ((val & 0xf0000000) >> 16);
memory.setInt(relocationAddress, iw);
return 4;
}
/**
* A 32-bit instruction word, where: - bits 0-3 of the RV go into bits 8-11 of
* the IW. - bits 4-32 of the RV must be zero.
*/
@SuppressWarnings("unused")
private int relocate_SBR(Memory memory, Address relocationAddress, long rv)
throws MemoryAccessException, NotFoundException {
long mask = 0xfffffff0L;
long val = ~mask & rv;
// oddly this is defined but not in any relocations
throw new NotFoundException();
}
/**
* 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 {
long mask = 0xffff00ffL;
long val = ~mask & rv;
int iw = memory.getShort(relocationAddress) & 0xff;
iw |= (val & 0xff00);
memory.setShort(relocationAddress, (short) iw);
return 2;
}
/**
* 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 {
long mask = 0xffffffc0L;
long val = ~mask & rv;
int iw = memory.getShort(relocationAddress) & 0xffc0;
iw |= (val & 0x3f);
memory.setShort(relocationAddress, (short) iw);
return 2;
}
/**
*
*/
private int relocate_3POS(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
long mask = 0xfffffff8L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress);
iw |= val << 8;
memory.setInt(relocationAddress, iw);
return 4;
}
/**
*
*/
private int relocate_5POS(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
long mask = 0xffffffe0L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress);
iw |= val << 16;
memory.setInt(relocationAddress, iw);
return 4;
}
/**
*
*/
private int relocate_5POS2(Memory memory, Address relocationAddress, long rv) throws MemoryAccessException {
long mask = 0xffffffe0L;
long val = ~mask & rv;
int iw = memory.getInt(relocationAddress);
iw |= val << 23;
memory.setInt(relocationAddress, iw);
return 4;
}
}