mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
91dbc78882
Summary:
in the function PPCFunctionInfo::getParmsType(), there is if (Bits > 31 || (Bits > 30 && (Elt != FixedType || hasVectorParms())))
when the Bit is 31 and the Elt is not FixedType(for example the Elt is FloatingType) , the 31th bit will be not encoded, it leave the bit as zero, when the function Expected<SmallString<32>> XCOFF::parseParmsType() the original implement
**// unsigned ParmsNum = FixedParmsNum + FloatingParmsNum;
while (Bits < 32 && ParsedNum < ParmsNum) {
...
}//**
it will look the 31 bits (zero) as FixedType. which should be FloatingType, and get a error.
Reviewers: Jason Liu,ZarkoCA
Differential Revision: https://reviews.llvm.org/D105023
278 lines
8.0 KiB
C++
278 lines
8.0 KiB
C++
//===-- llvm/BinaryFormat/XCOFF.cpp - The XCOFF file format -----*- C++/-*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/BinaryFormat/XCOFF.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Support/Errc.h"
|
|
#include "llvm/Support/Error.h"
|
|
|
|
using namespace llvm;
|
|
|
|
#define SMC_CASE(A) \
|
|
case XCOFF::XMC_##A: \
|
|
return #A;
|
|
StringRef XCOFF::getMappingClassString(XCOFF::StorageMappingClass SMC) {
|
|
switch (SMC) {
|
|
SMC_CASE(PR)
|
|
SMC_CASE(RO)
|
|
SMC_CASE(DB)
|
|
SMC_CASE(GL)
|
|
SMC_CASE(XO)
|
|
SMC_CASE(SV)
|
|
SMC_CASE(SV64)
|
|
SMC_CASE(SV3264)
|
|
SMC_CASE(TI)
|
|
SMC_CASE(TB)
|
|
SMC_CASE(RW)
|
|
SMC_CASE(TC0)
|
|
SMC_CASE(TC)
|
|
SMC_CASE(TD)
|
|
SMC_CASE(DS)
|
|
SMC_CASE(UA)
|
|
SMC_CASE(BS)
|
|
SMC_CASE(UC)
|
|
SMC_CASE(TL)
|
|
SMC_CASE(UL)
|
|
SMC_CASE(TE)
|
|
#undef SMC_CASE
|
|
}
|
|
|
|
// TODO: need to add a test case for "Unknown" and other SMC.
|
|
return "Unknown";
|
|
}
|
|
|
|
#define RELOC_CASE(A) \
|
|
case XCOFF::A: \
|
|
return #A;
|
|
StringRef XCOFF::getRelocationTypeString(XCOFF::RelocationType Type) {
|
|
switch (Type) {
|
|
RELOC_CASE(R_POS)
|
|
RELOC_CASE(R_RL)
|
|
RELOC_CASE(R_RLA)
|
|
RELOC_CASE(R_NEG)
|
|
RELOC_CASE(R_REL)
|
|
RELOC_CASE(R_TOC)
|
|
RELOC_CASE(R_TRL)
|
|
RELOC_CASE(R_TRLA)
|
|
RELOC_CASE(R_GL)
|
|
RELOC_CASE(R_TCL)
|
|
RELOC_CASE(R_REF)
|
|
RELOC_CASE(R_BA)
|
|
RELOC_CASE(R_BR)
|
|
RELOC_CASE(R_RBA)
|
|
RELOC_CASE(R_RBR)
|
|
RELOC_CASE(R_TLS)
|
|
RELOC_CASE(R_TLS_IE)
|
|
RELOC_CASE(R_TLS_LD)
|
|
RELOC_CASE(R_TLS_LE)
|
|
RELOC_CASE(R_TLSM)
|
|
RELOC_CASE(R_TLSML)
|
|
RELOC_CASE(R_TOCU)
|
|
RELOC_CASE(R_TOCL)
|
|
}
|
|
return "Unknown";
|
|
}
|
|
#undef RELOC_CASE
|
|
|
|
#define LANG_CASE(A) \
|
|
case XCOFF::TracebackTable::A: \
|
|
return #A;
|
|
|
|
StringRef XCOFF::getNameForTracebackTableLanguageId(
|
|
XCOFF::TracebackTable::LanguageID LangId) {
|
|
switch (LangId) {
|
|
LANG_CASE(C)
|
|
LANG_CASE(Fortran)
|
|
LANG_CASE(Pascal)
|
|
LANG_CASE(Ada)
|
|
LANG_CASE(PL1)
|
|
LANG_CASE(Basic)
|
|
LANG_CASE(Lisp)
|
|
LANG_CASE(Cobol)
|
|
LANG_CASE(Modula2)
|
|
LANG_CASE(Rpg)
|
|
LANG_CASE(PL8)
|
|
LANG_CASE(Assembly)
|
|
LANG_CASE(Java)
|
|
LANG_CASE(ObjectiveC)
|
|
LANG_CASE(CPlusPlus)
|
|
}
|
|
return "Unknown";
|
|
}
|
|
#undef LANG_CASE
|
|
|
|
Expected<SmallString<32>> XCOFF::parseParmsType(uint32_t Value,
|
|
unsigned FixedParmsNum,
|
|
unsigned FloatingParmsNum) {
|
|
SmallString<32> ParmsType;
|
|
int Bits = 0;
|
|
unsigned ParsedFixedNum = 0;
|
|
unsigned ParsedFloatingNum = 0;
|
|
unsigned ParsedNum = 0;
|
|
unsigned ParmsNum = FixedParmsNum + FloatingParmsNum;
|
|
|
|
// In the function PPCFunctionInfo::getParmsType(), when there are no vector
|
|
// parameters, the 31st bit of ParmsType is always zero even if it indicates a
|
|
// floating point parameter. The parameter type information is lost. There
|
|
// are only 8 GPRs used for parameters passing, the floating parameters
|
|
// also occupy GPRs if there are available, so the 31st bit can never be a
|
|
// fixed parameter. At the same time, we also do not know whether the zero of
|
|
// the 31st bit indicates a float or double parameter type here. Therefore, we
|
|
// ignore the 31st bit.
|
|
while (Bits < 31 && ParsedNum < ParmsNum) {
|
|
if (++ParsedNum > 1)
|
|
ParmsType += ", ";
|
|
if ((Value & TracebackTable::ParmTypeIsFloatingBit) == 0) {
|
|
// Fixed parameter type.
|
|
ParmsType += "i";
|
|
++ParsedFixedNum;
|
|
Value <<= 1;
|
|
++Bits;
|
|
} else {
|
|
if ((Value & TracebackTable::ParmTypeFloatingIsDoubleBit) == 0)
|
|
// Float parameter type.
|
|
ParmsType += "f";
|
|
else
|
|
// Double parameter type.
|
|
ParmsType += "d";
|
|
++ParsedFloatingNum;
|
|
Value <<= 2;
|
|
Bits += 2;
|
|
}
|
|
}
|
|
|
|
// We have more parameters than the 32 Bits could encode.
|
|
if (ParsedNum < ParmsNum)
|
|
ParmsType += ", ...";
|
|
|
|
if (Value != 0u || ParsedFixedNum > FixedParmsNum ||
|
|
ParsedFloatingNum > FloatingParmsNum)
|
|
return createStringError(errc::invalid_argument,
|
|
"ParmsType encodes can not map to ParmsNum "
|
|
"parameters in parseParmsType.");
|
|
return ParmsType;
|
|
}
|
|
|
|
SmallString<32> XCOFF::getExtendedTBTableFlagString(uint8_t Flag) {
|
|
SmallString<32> Res;
|
|
|
|
if (Flag & ExtendedTBTableFlag::TB_OS1)
|
|
Res += "TB_OS1 ";
|
|
if (Flag & ExtendedTBTableFlag::TB_RESERVED)
|
|
Res += "TB_RESERVED ";
|
|
if (Flag & ExtendedTBTableFlag::TB_SSP_CANARY)
|
|
Res += "TB_SSP_CANARY ";
|
|
if (Flag & ExtendedTBTableFlag::TB_OS2)
|
|
Res += "TB_OS2 ";
|
|
if (Flag & ExtendedTBTableFlag::TB_EH_INFO)
|
|
Res += "TB_EH_INFO ";
|
|
if (Flag & ExtendedTBTableFlag::TB_LONGTBTABLE2)
|
|
Res += "TB_LONGTBTABLE2 ";
|
|
|
|
// Two of the bits that haven't got used in the mask.
|
|
if (Flag & 0x06)
|
|
Res += "Unknown ";
|
|
|
|
// Pop the last space.
|
|
Res.pop_back();
|
|
return Res;
|
|
}
|
|
|
|
Expected<SmallString<32>>
|
|
XCOFF::parseParmsTypeWithVecInfo(uint32_t Value, unsigned FixedParmsNum,
|
|
unsigned FloatingParmsNum,
|
|
unsigned VectorParmsNum) {
|
|
SmallString<32> ParmsType;
|
|
|
|
unsigned ParsedFixedNum = 0;
|
|
unsigned ParsedFloatingNum = 0;
|
|
unsigned ParsedVectorNum = 0;
|
|
unsigned ParsedNum = 0;
|
|
unsigned ParmsNum = FixedParmsNum + FloatingParmsNum + VectorParmsNum;
|
|
|
|
for (int Bits = 0; Bits < 32 && ParsedNum < ParmsNum; Bits += 2) {
|
|
if (++ParsedNum > 1)
|
|
ParmsType += ", ";
|
|
|
|
switch (Value & TracebackTable::ParmTypeMask) {
|
|
case TracebackTable::ParmTypeIsFixedBits:
|
|
ParmsType += "i";
|
|
++ParsedFixedNum;
|
|
break;
|
|
case TracebackTable::ParmTypeIsVectorBits:
|
|
ParmsType += "v";
|
|
++ParsedVectorNum;
|
|
break;
|
|
case TracebackTable::ParmTypeIsFloatingBits:
|
|
ParmsType += "f";
|
|
++ParsedFloatingNum;
|
|
break;
|
|
case TracebackTable::ParmTypeIsDoubleBits:
|
|
ParmsType += "d";
|
|
++ParsedFloatingNum;
|
|
break;
|
|
default:
|
|
assert(false && "Unrecognized bits in ParmsType.");
|
|
}
|
|
Value <<= 2;
|
|
}
|
|
|
|
// We have more parameters than the 32 Bits could encode.
|
|
if (ParsedNum < ParmsNum)
|
|
ParmsType += ", ...";
|
|
|
|
if (Value != 0u || ParsedFixedNum > FixedParmsNum ||
|
|
ParsedFloatingNum > FloatingParmsNum || ParsedVectorNum > VectorParmsNum)
|
|
return createStringError(
|
|
errc::invalid_argument,
|
|
"ParmsType encodes can not map to ParmsNum parameters "
|
|
"in parseParmsTypeWithVecInfo.");
|
|
|
|
return ParmsType;
|
|
}
|
|
|
|
Expected<SmallString<32>> XCOFF::parseVectorParmsType(uint32_t Value,
|
|
unsigned ParmsNum) {
|
|
SmallString<32> ParmsType;
|
|
unsigned ParsedNum = 0;
|
|
for (int Bits = 0; ParsedNum < ParmsNum && Bits < 32; Bits += 2) {
|
|
if (++ParsedNum > 1)
|
|
ParmsType += ", ";
|
|
switch (Value & TracebackTable::ParmTypeMask) {
|
|
case TracebackTable::ParmTypeIsVectorCharBit:
|
|
ParmsType += "vc";
|
|
break;
|
|
|
|
case TracebackTable::ParmTypeIsVectorShortBit:
|
|
ParmsType += "vs";
|
|
break;
|
|
|
|
case TracebackTable::ParmTypeIsVectorIntBit:
|
|
ParmsType += "vi";
|
|
break;
|
|
|
|
case TracebackTable::ParmTypeIsVectorFloatBit:
|
|
ParmsType += "vf";
|
|
break;
|
|
}
|
|
|
|
Value <<= 2;
|
|
}
|
|
|
|
// We have more parameters than the 32 Bits could encode.
|
|
if (ParsedNum < ParmsNum)
|
|
ParmsType += ", ...";
|
|
|
|
if (Value != 0u)
|
|
return createStringError(errc::invalid_argument,
|
|
"ParmsType encodes more than ParmsNum parameters "
|
|
"in parseVectorParmsType.");
|
|
return ParmsType;
|
|
}
|