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clang-p2996/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo 
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

591 lines
24 KiB
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//===-- AMDGPUTargetStreamer.cpp - Mips Target Streamer Methods -----------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file provides AMDGPU specific target streamer methods.
//
//===----------------------------------------------------------------------===//
#include "AMDGPUTargetStreamer.h"
#include "AMDGPU.h"
#include "SIDefines.h"
#include "Utils/AMDGPUBaseInfo.h"
#include "Utils/AMDKernelCodeTUtils.h"
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/AMDGPUMetadataVerifier.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/BinaryFormat/MsgPackTypes.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetParser.h"
namespace llvm {
#include "AMDGPUPTNote.h"
}
using namespace llvm;
using namespace llvm::AMDGPU;
using namespace llvm::AMDGPU::HSAMD;
//===----------------------------------------------------------------------===//
// AMDGPUTargetStreamer
//===----------------------------------------------------------------------===//
bool AMDGPUTargetStreamer::EmitHSAMetadataV2(StringRef HSAMetadataString) {
HSAMD::Metadata HSAMetadata;
if (HSAMD::fromString(HSAMetadataString, HSAMetadata))
return false;
return EmitHSAMetadata(HSAMetadata);
}
bool AMDGPUTargetStreamer::EmitHSAMetadataV3(StringRef HSAMetadataString) {
std::shared_ptr<msgpack::Node> HSAMetadataRoot;
yaml::Input YIn(HSAMetadataString);
YIn >> HSAMetadataRoot;
if (YIn.error())
return false;
return EmitHSAMetadata(HSAMetadataRoot, false);
}
StringRef AMDGPUTargetStreamer::getArchNameFromElfMach(unsigned ElfMach) {
AMDGPU::GPUKind AK;
switch (ElfMach) {
case ELF::EF_AMDGPU_MACH_R600_R600: AK = GK_R600; break;
case ELF::EF_AMDGPU_MACH_R600_R630: AK = GK_R630; break;
case ELF::EF_AMDGPU_MACH_R600_RS880: AK = GK_RS880; break;
case ELF::EF_AMDGPU_MACH_R600_RV670: AK = GK_RV670; break;
case ELF::EF_AMDGPU_MACH_R600_RV710: AK = GK_RV710; break;
case ELF::EF_AMDGPU_MACH_R600_RV730: AK = GK_RV730; break;
case ELF::EF_AMDGPU_MACH_R600_RV770: AK = GK_RV770; break;
case ELF::EF_AMDGPU_MACH_R600_CEDAR: AK = GK_CEDAR; break;
case ELF::EF_AMDGPU_MACH_R600_CYPRESS: AK = GK_CYPRESS; break;
case ELF::EF_AMDGPU_MACH_R600_JUNIPER: AK = GK_JUNIPER; break;
case ELF::EF_AMDGPU_MACH_R600_REDWOOD: AK = GK_REDWOOD; break;
case ELF::EF_AMDGPU_MACH_R600_SUMO: AK = GK_SUMO; break;
case ELF::EF_AMDGPU_MACH_R600_BARTS: AK = GK_BARTS; break;
case ELF::EF_AMDGPU_MACH_R600_CAICOS: AK = GK_CAICOS; break;
case ELF::EF_AMDGPU_MACH_R600_CAYMAN: AK = GK_CAYMAN; break;
case ELF::EF_AMDGPU_MACH_R600_TURKS: AK = GK_TURKS; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX600: AK = GK_GFX600; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX601: AK = GK_GFX601; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX700: AK = GK_GFX700; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX701: AK = GK_GFX701; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX702: AK = GK_GFX702; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX703: AK = GK_GFX703; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX704: AK = GK_GFX704; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX801: AK = GK_GFX801; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX802: AK = GK_GFX802; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX803: AK = GK_GFX803; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX810: AK = GK_GFX810; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX900: AK = GK_GFX900; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX902: AK = GK_GFX902; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX904: AK = GK_GFX904; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX906: AK = GK_GFX906; break;
case ELF::EF_AMDGPU_MACH_AMDGCN_GFX909: AK = GK_GFX909; break;
case ELF::EF_AMDGPU_MACH_NONE: AK = GK_NONE; break;
}
StringRef GPUName = getArchNameAMDGCN(AK);
if (GPUName != "")
return GPUName;
return getArchNameR600(AK);
}
unsigned AMDGPUTargetStreamer::getElfMach(StringRef GPU) {
AMDGPU::GPUKind AK = parseArchAMDGCN(GPU);
if (AK == AMDGPU::GPUKind::GK_NONE)
AK = parseArchR600(GPU);
switch (AK) {
case GK_R600: return ELF::EF_AMDGPU_MACH_R600_R600;
case GK_R630: return ELF::EF_AMDGPU_MACH_R600_R630;
case GK_RS880: return ELF::EF_AMDGPU_MACH_R600_RS880;
case GK_RV670: return ELF::EF_AMDGPU_MACH_R600_RV670;
case GK_RV710: return ELF::EF_AMDGPU_MACH_R600_RV710;
case GK_RV730: return ELF::EF_AMDGPU_MACH_R600_RV730;
case GK_RV770: return ELF::EF_AMDGPU_MACH_R600_RV770;
case GK_CEDAR: return ELF::EF_AMDGPU_MACH_R600_CEDAR;
case GK_CYPRESS: return ELF::EF_AMDGPU_MACH_R600_CYPRESS;
case GK_JUNIPER: return ELF::EF_AMDGPU_MACH_R600_JUNIPER;
case GK_REDWOOD: return ELF::EF_AMDGPU_MACH_R600_REDWOOD;
case GK_SUMO: return ELF::EF_AMDGPU_MACH_R600_SUMO;
case GK_BARTS: return ELF::EF_AMDGPU_MACH_R600_BARTS;
case GK_CAICOS: return ELF::EF_AMDGPU_MACH_R600_CAICOS;
case GK_CAYMAN: return ELF::EF_AMDGPU_MACH_R600_CAYMAN;
case GK_TURKS: return ELF::EF_AMDGPU_MACH_R600_TURKS;
case GK_GFX600: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX600;
case GK_GFX601: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX601;
case GK_GFX700: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX700;
case GK_GFX701: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX701;
case GK_GFX702: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX702;
case GK_GFX703: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX703;
case GK_GFX704: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX704;
case GK_GFX801: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX801;
case GK_GFX802: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX802;
case GK_GFX803: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX803;
case GK_GFX810: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX810;
case GK_GFX900: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX900;
case GK_GFX902: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX902;
case GK_GFX904: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX904;
case GK_GFX906: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX906;
case GK_GFX909: return ELF::EF_AMDGPU_MACH_AMDGCN_GFX909;
case GK_NONE: return ELF::EF_AMDGPU_MACH_NONE;
}
llvm_unreachable("unknown GPU");
}
//===----------------------------------------------------------------------===//
// AMDGPUTargetAsmStreamer
//===----------------------------------------------------------------------===//
AMDGPUTargetAsmStreamer::AMDGPUTargetAsmStreamer(MCStreamer &S,
formatted_raw_ostream &OS)
: AMDGPUTargetStreamer(S), OS(OS) { }
void AMDGPUTargetAsmStreamer::EmitDirectiveAMDGCNTarget(StringRef Target) {
OS << "\t.amdgcn_target \"" << Target << "\"\n";
}
void AMDGPUTargetAsmStreamer::EmitDirectiveHSACodeObjectVersion(
uint32_t Major, uint32_t Minor) {
OS << "\t.hsa_code_object_version " <<
Twine(Major) << "," << Twine(Minor) << '\n';
}
void
AMDGPUTargetAsmStreamer::EmitDirectiveHSACodeObjectISA(uint32_t Major,
uint32_t Minor,
uint32_t Stepping,
StringRef VendorName,
StringRef ArchName) {
OS << "\t.hsa_code_object_isa " <<
Twine(Major) << "," << Twine(Minor) << "," << Twine(Stepping) <<
",\"" << VendorName << "\",\"" << ArchName << "\"\n";
}
void
AMDGPUTargetAsmStreamer::EmitAMDKernelCodeT(const amd_kernel_code_t &Header) {
OS << "\t.amd_kernel_code_t\n";
dumpAmdKernelCode(&Header, OS, "\t\t");
OS << "\t.end_amd_kernel_code_t\n";
}
void AMDGPUTargetAsmStreamer::EmitAMDGPUSymbolType(StringRef SymbolName,
unsigned Type) {
switch (Type) {
default: llvm_unreachable("Invalid AMDGPU symbol type");
case ELF::STT_AMDGPU_HSA_KERNEL:
OS << "\t.amdgpu_hsa_kernel " << SymbolName << '\n' ;
break;
}
}
bool AMDGPUTargetAsmStreamer::EmitISAVersion(StringRef IsaVersionString) {
OS << "\t.amd_amdgpu_isa \"" << IsaVersionString << "\"\n";
return true;
}
bool AMDGPUTargetAsmStreamer::EmitHSAMetadata(
const AMDGPU::HSAMD::Metadata &HSAMetadata) {
std::string HSAMetadataString;
if (HSAMD::toString(HSAMetadata, HSAMetadataString))
return false;
OS << '\t' << AssemblerDirectiveBegin << '\n';
OS << HSAMetadataString << '\n';
OS << '\t' << AssemblerDirectiveEnd << '\n';
return true;
}
bool AMDGPUTargetAsmStreamer::EmitHSAMetadata(
std::shared_ptr<msgpack::Node> &HSAMetadataRoot, bool Strict) {
V3::MetadataVerifier Verifier(Strict);
if (!Verifier.verify(*HSAMetadataRoot))
return false;
std::string HSAMetadataString;
raw_string_ostream StrOS(HSAMetadataString);
yaml::Output YOut(StrOS);
YOut << HSAMetadataRoot;
OS << '\t' << V3::AssemblerDirectiveBegin << '\n';
OS << StrOS.str() << '\n';
OS << '\t' << V3::AssemblerDirectiveEnd << '\n';
return true;
}
bool AMDGPUTargetAsmStreamer::EmitPALMetadata(
const PALMD::Metadata &PALMetadata) {
std::string PALMetadataString;
if (PALMD::toString(PALMetadata, PALMetadataString))
return false;
OS << '\t' << PALMD::AssemblerDirective << PALMetadataString << '\n';
return true;
}
void AMDGPUTargetAsmStreamer::EmitAmdhsaKernelDescriptor(
const MCSubtargetInfo &STI, StringRef KernelName,
const amdhsa::kernel_descriptor_t &KD, uint64_t NextVGPR, uint64_t NextSGPR,
bool ReserveVCC, bool ReserveFlatScr, bool ReserveXNACK) {
IsaVersion IVersion = getIsaVersion(STI.getCPU());
OS << "\t.amdhsa_kernel " << KernelName << '\n';
#define PRINT_FIELD(STREAM, DIRECTIVE, KERNEL_DESC, MEMBER_NAME, FIELD_NAME) \
STREAM << "\t\t" << DIRECTIVE << " " \
<< AMDHSA_BITS_GET(KERNEL_DESC.MEMBER_NAME, FIELD_NAME) << '\n';
OS << "\t\t.amdhsa_group_segment_fixed_size " << KD.group_segment_fixed_size
<< '\n';
OS << "\t\t.amdhsa_private_segment_fixed_size "
<< KD.private_segment_fixed_size << '\n';
PRINT_FIELD(OS, ".amdhsa_user_sgpr_private_segment_buffer", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_BUFFER);
PRINT_FIELD(OS, ".amdhsa_user_sgpr_dispatch_ptr", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_PTR);
PRINT_FIELD(OS, ".amdhsa_user_sgpr_queue_ptr", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_QUEUE_PTR);
PRINT_FIELD(OS, ".amdhsa_user_sgpr_kernarg_segment_ptr", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR);
PRINT_FIELD(OS, ".amdhsa_user_sgpr_dispatch_id", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_ID);
PRINT_FIELD(OS, ".amdhsa_user_sgpr_flat_scratch_init", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_FLAT_SCRATCH_INIT);
PRINT_FIELD(OS, ".amdhsa_user_sgpr_private_segment_size", KD,
kernel_code_properties,
amdhsa::KERNEL_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE);
PRINT_FIELD(
OS, ".amdhsa_system_sgpr_private_segment_wavefront_offset", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_SGPR_PRIVATE_SEGMENT_WAVEFRONT_OFFSET);
PRINT_FIELD(OS, ".amdhsa_system_sgpr_workgroup_id_x", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_SGPR_WORKGROUP_ID_X);
PRINT_FIELD(OS, ".amdhsa_system_sgpr_workgroup_id_y", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_SGPR_WORKGROUP_ID_Y);
PRINT_FIELD(OS, ".amdhsa_system_sgpr_workgroup_id_z", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_SGPR_WORKGROUP_ID_Z);
PRINT_FIELD(OS, ".amdhsa_system_sgpr_workgroup_info", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_SGPR_WORKGROUP_INFO);
PRINT_FIELD(OS, ".amdhsa_system_vgpr_workitem_id", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_VGPR_WORKITEM_ID);
// These directives are required.
OS << "\t\t.amdhsa_next_free_vgpr " << NextVGPR << '\n';
OS << "\t\t.amdhsa_next_free_sgpr " << NextSGPR << '\n';
if (!ReserveVCC)
OS << "\t\t.amdhsa_reserve_vcc " << ReserveVCC << '\n';
if (IVersion.Major >= 7 && !ReserveFlatScr)
OS << "\t\t.amdhsa_reserve_flat_scratch " << ReserveFlatScr << '\n';
if (IVersion.Major >= 8 && ReserveXNACK != hasXNACK(STI))
OS << "\t\t.amdhsa_reserve_xnack_mask " << ReserveXNACK << '\n';
PRINT_FIELD(OS, ".amdhsa_float_round_mode_32", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_FLOAT_ROUND_MODE_32);
PRINT_FIELD(OS, ".amdhsa_float_round_mode_16_64", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_FLOAT_ROUND_MODE_16_64);
PRINT_FIELD(OS, ".amdhsa_float_denorm_mode_32", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_FLOAT_DENORM_MODE_32);
PRINT_FIELD(OS, ".amdhsa_float_denorm_mode_16_64", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_FLOAT_DENORM_MODE_16_64);
PRINT_FIELD(OS, ".amdhsa_dx10_clamp", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_ENABLE_DX10_CLAMP);
PRINT_FIELD(OS, ".amdhsa_ieee_mode", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_ENABLE_IEEE_MODE);
if (IVersion.Major >= 9)
PRINT_FIELD(OS, ".amdhsa_fp16_overflow", KD,
compute_pgm_rsrc1,
amdhsa::COMPUTE_PGM_RSRC1_FP16_OVFL);
PRINT_FIELD(
OS, ".amdhsa_exception_fp_ieee_invalid_op", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_IEEE_754_FP_INVALID_OPERATION);
PRINT_FIELD(OS, ".amdhsa_exception_fp_denorm_src", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_FP_DENORMAL_SOURCE);
PRINT_FIELD(
OS, ".amdhsa_exception_fp_ieee_div_zero", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_IEEE_754_FP_DIVISION_BY_ZERO);
PRINT_FIELD(OS, ".amdhsa_exception_fp_ieee_overflow", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_IEEE_754_FP_OVERFLOW);
PRINT_FIELD(OS, ".amdhsa_exception_fp_ieee_underflow", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_IEEE_754_FP_UNDERFLOW);
PRINT_FIELD(OS, ".amdhsa_exception_fp_ieee_inexact", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_IEEE_754_FP_INEXACT);
PRINT_FIELD(OS, ".amdhsa_exception_int_div_zero", KD,
compute_pgm_rsrc2,
amdhsa::COMPUTE_PGM_RSRC2_ENABLE_EXCEPTION_INT_DIVIDE_BY_ZERO);
#undef PRINT_FIELD
OS << "\t.end_amdhsa_kernel\n";
}
//===----------------------------------------------------------------------===//
// AMDGPUTargetELFStreamer
//===----------------------------------------------------------------------===//
AMDGPUTargetELFStreamer::AMDGPUTargetELFStreamer(
MCStreamer &S, const MCSubtargetInfo &STI)
: AMDGPUTargetStreamer(S), Streamer(S) {
MCAssembler &MCA = getStreamer().getAssembler();
unsigned EFlags = MCA.getELFHeaderEFlags();
EFlags &= ~ELF::EF_AMDGPU_MACH;
EFlags |= getElfMach(STI.getCPU());
EFlags &= ~ELF::EF_AMDGPU_XNACK;
if (AMDGPU::hasXNACK(STI))
EFlags |= ELF::EF_AMDGPU_XNACK;
EFlags &= ~ELF::EF_AMDGPU_SRAM_ECC;
if (AMDGPU::hasSRAMECC(STI))
EFlags |= ELF::EF_AMDGPU_SRAM_ECC;
MCA.setELFHeaderEFlags(EFlags);
}
MCELFStreamer &AMDGPUTargetELFStreamer::getStreamer() {
return static_cast<MCELFStreamer &>(Streamer);
}
void AMDGPUTargetELFStreamer::EmitNote(
StringRef Name, const MCExpr *DescSZ, unsigned NoteType,
function_ref<void(MCELFStreamer &)> EmitDesc) {
auto &S = getStreamer();
auto &Context = S.getContext();
auto NameSZ = Name.size() + 1;
S.PushSection();
S.SwitchSection(Context.getELFSection(
ElfNote::SectionName, ELF::SHT_NOTE, ELF::SHF_ALLOC));
S.EmitIntValue(NameSZ, 4); // namesz
S.EmitValue(DescSZ, 4); // descz
S.EmitIntValue(NoteType, 4); // type
S.EmitBytes(Name); // name
S.EmitValueToAlignment(4, 0, 1, 0); // padding 0
EmitDesc(S); // desc
S.EmitValueToAlignment(4, 0, 1, 0); // padding 0
S.PopSection();
}
void AMDGPUTargetELFStreamer::EmitDirectiveAMDGCNTarget(StringRef Target) {}
void AMDGPUTargetELFStreamer::EmitDirectiveHSACodeObjectVersion(
uint32_t Major, uint32_t Minor) {
EmitNote(ElfNote::NoteNameV2, MCConstantExpr::create(8, getContext()),
ElfNote::NT_AMDGPU_HSA_CODE_OBJECT_VERSION, [&](MCELFStreamer &OS) {
OS.EmitIntValue(Major, 4);
OS.EmitIntValue(Minor, 4);
});
}
void
AMDGPUTargetELFStreamer::EmitDirectiveHSACodeObjectISA(uint32_t Major,
uint32_t Minor,
uint32_t Stepping,
StringRef VendorName,
StringRef ArchName) {
uint16_t VendorNameSize = VendorName.size() + 1;
uint16_t ArchNameSize = ArchName.size() + 1;
unsigned DescSZ = sizeof(VendorNameSize) + sizeof(ArchNameSize) +
sizeof(Major) + sizeof(Minor) + sizeof(Stepping) +
VendorNameSize + ArchNameSize;
EmitNote(ElfNote::NoteNameV2, MCConstantExpr::create(DescSZ, getContext()),
ElfNote::NT_AMDGPU_HSA_ISA, [&](MCELFStreamer &OS) {
OS.EmitIntValue(VendorNameSize, 2);
OS.EmitIntValue(ArchNameSize, 2);
OS.EmitIntValue(Major, 4);
OS.EmitIntValue(Minor, 4);
OS.EmitIntValue(Stepping, 4);
OS.EmitBytes(VendorName);
OS.EmitIntValue(0, 1); // NULL terminate VendorName
OS.EmitBytes(ArchName);
OS.EmitIntValue(0, 1); // NULL terminte ArchName
});
}
void
AMDGPUTargetELFStreamer::EmitAMDKernelCodeT(const amd_kernel_code_t &Header) {
MCStreamer &OS = getStreamer();
OS.PushSection();
OS.EmitBytes(StringRef((const char*)&Header, sizeof(Header)));
OS.PopSection();
}
void AMDGPUTargetELFStreamer::EmitAMDGPUSymbolType(StringRef SymbolName,
unsigned Type) {
MCSymbolELF *Symbol = cast<MCSymbolELF>(
getStreamer().getContext().getOrCreateSymbol(SymbolName));
Symbol->setType(Type);
}
bool AMDGPUTargetELFStreamer::EmitISAVersion(StringRef IsaVersionString) {
// Create two labels to mark the beginning and end of the desc field
// and a MCExpr to calculate the size of the desc field.
auto &Context = getContext();
auto *DescBegin = Context.createTempSymbol();
auto *DescEnd = Context.createTempSymbol();
auto *DescSZ = MCBinaryExpr::createSub(
MCSymbolRefExpr::create(DescEnd, Context),
MCSymbolRefExpr::create(DescBegin, Context), Context);
EmitNote(ElfNote::NoteNameV2, DescSZ, ELF::NT_AMD_AMDGPU_ISA,
[&](MCELFStreamer &OS) {
OS.EmitLabel(DescBegin);
OS.EmitBytes(IsaVersionString);
OS.EmitLabel(DescEnd);
});
return true;
}
bool AMDGPUTargetELFStreamer::EmitHSAMetadata(
std::shared_ptr<msgpack::Node> &HSAMetadataRoot, bool Strict) {
V3::MetadataVerifier Verifier(Strict);
if (!Verifier.verify(*HSAMetadataRoot))
return false;
std::string HSAMetadataString;
raw_string_ostream StrOS(HSAMetadataString);
msgpack::Writer MPWriter(StrOS);
HSAMetadataRoot->write(MPWriter);
// Create two labels to mark the beginning and end of the desc field
// and a MCExpr to calculate the size of the desc field.
auto &Context = getContext();
auto *DescBegin = Context.createTempSymbol();
auto *DescEnd = Context.createTempSymbol();
auto *DescSZ = MCBinaryExpr::createSub(
MCSymbolRefExpr::create(DescEnd, Context),
MCSymbolRefExpr::create(DescBegin, Context), Context);
EmitNote(ElfNote::NoteNameV3, DescSZ, ELF::NT_AMDGPU_METADATA,
[&](MCELFStreamer &OS) {
OS.EmitLabel(DescBegin);
OS.EmitBytes(StrOS.str());
OS.EmitLabel(DescEnd);
});
return true;
}
bool AMDGPUTargetELFStreamer::EmitHSAMetadata(
const AMDGPU::HSAMD::Metadata &HSAMetadata) {
std::string HSAMetadataString;
if (HSAMD::toString(HSAMetadata, HSAMetadataString))
return false;
// Create two labels to mark the beginning and end of the desc field
// and a MCExpr to calculate the size of the desc field.
auto &Context = getContext();
auto *DescBegin = Context.createTempSymbol();
auto *DescEnd = Context.createTempSymbol();
auto *DescSZ = MCBinaryExpr::createSub(
MCSymbolRefExpr::create(DescEnd, Context),
MCSymbolRefExpr::create(DescBegin, Context), Context);
EmitNote(ElfNote::NoteNameV2, DescSZ, ELF::NT_AMD_AMDGPU_HSA_METADATA,
[&](MCELFStreamer &OS) {
OS.EmitLabel(DescBegin);
OS.EmitBytes(HSAMetadataString);
OS.EmitLabel(DescEnd);
});
return true;
}
bool AMDGPUTargetELFStreamer::EmitPALMetadata(
const PALMD::Metadata &PALMetadata) {
EmitNote(ElfNote::NoteNameV2,
MCConstantExpr::create(PALMetadata.size() * sizeof(uint32_t),
getContext()),
ELF::NT_AMD_AMDGPU_PAL_METADATA, [&](MCELFStreamer &OS) {
for (auto I : PALMetadata)
OS.EmitIntValue(I, sizeof(uint32_t));
});
return true;
}
void AMDGPUTargetELFStreamer::EmitAmdhsaKernelDescriptor(
const MCSubtargetInfo &STI, StringRef KernelName,
const amdhsa::kernel_descriptor_t &KernelDescriptor, uint64_t NextVGPR,
uint64_t NextSGPR, bool ReserveVCC, bool ReserveFlatScr,
bool ReserveXNACK) {
auto &Streamer = getStreamer();
auto &Context = Streamer.getContext();
MCSymbolELF *KernelDescriptorSymbol = cast<MCSymbolELF>(
Context.getOrCreateSymbol(Twine(KernelName) + Twine(".kd")));
KernelDescriptorSymbol->setBinding(ELF::STB_GLOBAL);
KernelDescriptorSymbol->setType(ELF::STT_OBJECT);
KernelDescriptorSymbol->setSize(
MCConstantExpr::create(sizeof(KernelDescriptor), Context));
MCSymbolELF *KernelCodeSymbol = cast<MCSymbolELF>(
Context.getOrCreateSymbol(Twine(KernelName)));
KernelCodeSymbol->setBinding(ELF::STB_LOCAL);
Streamer.EmitLabel(KernelDescriptorSymbol);
Streamer.EmitBytes(StringRef(
(const char*)&(KernelDescriptor),
offsetof(amdhsa::kernel_descriptor_t, kernel_code_entry_byte_offset)));
// FIXME: Remove the use of VK_AMDGPU_REL64 in the expression below. The
// expression being created is:
// (start of kernel code) - (start of kernel descriptor)
// It implies R_AMDGPU_REL64, but ends up being R_AMDGPU_ABS64.
Streamer.EmitValue(MCBinaryExpr::createSub(
MCSymbolRefExpr::create(
KernelCodeSymbol, MCSymbolRefExpr::VK_AMDGPU_REL64, Context),
MCSymbolRefExpr::create(
KernelDescriptorSymbol, MCSymbolRefExpr::VK_None, Context),
Context),
sizeof(KernelDescriptor.kernel_code_entry_byte_offset));
Streamer.EmitBytes(StringRef(
(const char*)&(KernelDescriptor) +
offsetof(amdhsa::kernel_descriptor_t, kernel_code_entry_byte_offset) +
sizeof(KernelDescriptor.kernel_code_entry_byte_offset),
sizeof(KernelDescriptor) -
offsetof(amdhsa::kernel_descriptor_t, kernel_code_entry_byte_offset) -
sizeof(KernelDescriptor.kernel_code_entry_byte_offset)));
}
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