[llvm-objdump][AMDGPU] Pass ELF ABIVersion through disassembler #78907
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added
backend:AMDGPU
backend:WebAssembly
mc
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@llvm/pr-subscribers-llvm-binary-utilities @llvm/pr-subscribers-backend-webassembly Author: Emma Pilkington (epilk) ChangesAdmittedly, its a bit ugly to pass the ABIVersion through onSymbolStart but I'm not sure what a better place for it would be. Patch is 35.41 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/78907.diff 18 Files Affected:
diff --git a/llvm/include/llvm/MC/MCDisassembler/MCDisassembler.h b/llvm/include/llvm/MC/MCDisassembler/MCDisassembler.h
index 2553a086cd53bb..6171baad86e261 100644
--- a/llvm/include/llvm/MC/MCDisassembler/MCDisassembler.h
+++ b/llvm/include/llvm/MC/MCDisassembler/MCDisassembler.h
@@ -143,6 +143,8 @@ class MCDisassembler {
/// to treat symbols separately.
///
/// \param Symbol - The symbol.
+ /// \param Version - Target disassembler-specific ABI version number to used
+ /// to interpret the symbol.
/// \param Size - The number of bytes consumed.
/// \param Address - The address, in the memory space of region, of the first
/// byte of the symbol.
@@ -159,8 +161,9 @@ class MCDisassembler {
/// symbol separately. Value of Size is ignored in this
/// case.
virtual std::optional<DecodeStatus>
- onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size, ArrayRef<uint8_t> Bytes,
- uint64_t Address, raw_ostream &CStream) const;
+ onSymbolStart(SymbolInfoTy &Symbol, unsigned Version, uint64_t &Size,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &CStream) const;
// TODO:
// Implement similar hooks that can be used at other points during
// disassembly. Something along the following lines:
diff --git a/llvm/include/llvm/Object/ELFObjectFile.h b/llvm/include/llvm/Object/ELFObjectFile.h
index 7124df50b561db..c9227da65708cc 100644
--- a/llvm/include/llvm/Object/ELFObjectFile.h
+++ b/llvm/include/llvm/Object/ELFObjectFile.h
@@ -103,6 +103,8 @@ class ELFObjectFileBase : public ObjectFile {
virtual uint16_t getEMachine() const = 0;
+ virtual uint8_t getEIdentABIVersion() const = 0;
+
std::vector<ELFPltEntry> getPltEntries() const;
/// Returns a vector containing a symbol version for each dynamic symbol.
@@ -251,6 +253,7 @@ ELFObjectFileBase::symbols() const {
template <class ELFT> class ELFObjectFile : public ELFObjectFileBase {
uint16_t getEMachine() const override;
uint16_t getEType() const override;
+ uint8_t getEIdentABIVersion() const override;
uint64_t getSymbolSize(DataRefImpl Sym) const override;
public:
@@ -645,6 +648,10 @@ template <class ELFT> uint16_t ELFObjectFile<ELFT>::getEType() const {
return EF.getHeader().e_type;
}
+template <class ELFT> uint8_t ELFObjectFile<ELFT>::getEIdentABIVersion() const {
+ return EF.getHeader().e_ident[ELF::EI_ABIVERSION];
+}
+
template <class ELFT>
uint64_t ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Sym) const {
Expected<const Elf_Sym *> SymOrErr = getSymbol(Sym);
diff --git a/llvm/lib/MC/MCDisassembler/MCDisassembler.cpp b/llvm/lib/MC/MCDisassembler/MCDisassembler.cpp
index 80c32ac5608220..51396a6f9cdcd7 100644
--- a/llvm/lib/MC/MCDisassembler/MCDisassembler.cpp
+++ b/llvm/lib/MC/MCDisassembler/MCDisassembler.cpp
@@ -14,9 +14,9 @@ using namespace llvm;
MCDisassembler::~MCDisassembler() = default;
std::optional<MCDisassembler::DecodeStatus>
-MCDisassembler::onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size,
- ArrayRef<uint8_t> Bytes, uint64_t Address,
- raw_ostream &CStream) const {
+MCDisassembler::onSymbolStart(SymbolInfoTy &Symbol, unsigned Version,
+ uint64_t &Size, ArrayRef<uint8_t> Bytes,
+ uint64_t Address, raw_ostream &CStream) const {
return std::nullopt;
}
diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
index 86096b0d80b424..30fcee1a264553 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
@@ -2077,7 +2077,7 @@ MCDisassembler::DecodeStatus AMDGPUDisassembler::decodeCOMPUTE_PGM_RSRC3(
MCDisassembler::DecodeStatus
AMDGPUDisassembler::decodeKernelDescriptorDirective(
DataExtractor::Cursor &Cursor, ArrayRef<uint8_t> Bytes,
- raw_string_ostream &KdStream) const {
+ raw_string_ostream &KdStream, unsigned CodeObjectVersion) const {
#define PRINT_DIRECTIVE(DIRECTIVE, MASK) \
do { \
KdStream << Indent << DIRECTIVE " " \
@@ -2184,8 +2184,7 @@ AMDGPUDisassembler::decodeKernelDescriptorDirective(
KERNEL_CODE_PROPERTY_ENABLE_WAVEFRONT_SIZE32);
}
- // FIXME: We should be looking at the ELF header ABI version for this.
- if (AMDGPU::getDefaultAMDHSACodeObjectVersion() >= AMDGPU::AMDHSA_COV5)
+ if (CodeObjectVersion >= AMDGPU::AMDHSA_COV5)
PRINT_DIRECTIVE(".amdhsa_uses_dynamic_stack",
KERNEL_CODE_PROPERTY_USES_DYNAMIC_STACK);
@@ -2225,7 +2224,8 @@ AMDGPUDisassembler::decodeKernelDescriptorDirective(
}
MCDisassembler::DecodeStatus AMDGPUDisassembler::decodeKernelDescriptor(
- StringRef KdName, ArrayRef<uint8_t> Bytes, uint64_t KdAddress) const {
+ StringRef KdName, ArrayRef<uint8_t> Bytes, uint64_t KdAddress,
+ unsigned CodeObjectVersion) const {
// CP microcode requires the kernel descriptor to be 64 aligned.
if (Bytes.size() != 64 || KdAddress % 64 != 0)
return MCDisassembler::Fail;
@@ -2251,7 +2251,7 @@ MCDisassembler::DecodeStatus AMDGPUDisassembler::decodeKernelDescriptor(
DataExtractor::Cursor C(0);
while (C && C.tell() < Bytes.size()) {
MCDisassembler::DecodeStatus Status =
- decodeKernelDescriptorDirective(C, Bytes, KdStream);
+ decodeKernelDescriptorDirective(C, Bytes, KdStream, CodeObjectVersion);
cantFail(C.takeError());
@@ -2263,10 +2263,9 @@ MCDisassembler::DecodeStatus AMDGPUDisassembler::decodeKernelDescriptor(
return MCDisassembler::Success;
}
-std::optional<MCDisassembler::DecodeStatus>
-AMDGPUDisassembler::onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size,
- ArrayRef<uint8_t> Bytes, uint64_t Address,
- raw_ostream &CStream) const {
+std::optional<MCDisassembler::DecodeStatus> AMDGPUDisassembler::onSymbolStart(
+ SymbolInfoTy &Symbol, unsigned ABIVersion, uint64_t &Size,
+ ArrayRef<uint8_t> Bytes, uint64_t Address, raw_ostream &CStream) const {
// Right now only kernel descriptor needs to be handled.
// We ignore all other symbols for target specific handling.
// TODO:
@@ -2279,11 +2278,14 @@ AMDGPUDisassembler::onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size,
return MCDisassembler::Fail;
}
+ unsigned CodeObjectVersion = AMDGPU::getAMDHSACodeObjectVersion(ABIVersion);
+
// Code Object V3 kernel descriptors.
StringRef Name = Symbol.Name;
if (Symbol.Type == ELF::STT_OBJECT && Name.ends_with(StringRef(".kd"))) {
Size = 64; // Size = 64 regardless of success or failure.
- return decodeKernelDescriptor(Name.drop_back(3), Bytes, Address);
+ return decodeKernelDescriptor(Name.drop_back(3), Bytes, Address,
+ CodeObjectVersion);
}
return std::nullopt;
}
diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
index 233581949d7124..288863565e5f1b 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
@@ -158,16 +158,17 @@ class AMDGPUDisassembler : public MCDisassembler {
}
std::optional<DecodeStatus>
- onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size, ArrayRef<uint8_t> Bytes,
- uint64_t Address, raw_ostream &CStream) const override;
+ onSymbolStart(SymbolInfoTy &Symbol, unsigned Version, uint64_t &Size,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &CStream) const override;
DecodeStatus decodeKernelDescriptor(StringRef KdName, ArrayRef<uint8_t> Bytes,
- uint64_t KdAddress) const;
+ uint64_t KdAddress,
+ unsigned CodeObjectVersion) const;
- DecodeStatus
- decodeKernelDescriptorDirective(DataExtractor::Cursor &Cursor,
- ArrayRef<uint8_t> Bytes,
- raw_string_ostream &KdStream) const;
+ DecodeStatus decodeKernelDescriptorDirective(
+ DataExtractor::Cursor &Cursor, ArrayRef<uint8_t> Bytes,
+ raw_string_ostream &KdStream, unsigned CodeObjectVersion) const;
/// Decode as directives that handle COMPUTE_PGM_RSRC1.
/// \param FourByteBuffer - Bytes holding contents of COMPUTE_PGM_RSRC1.
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
index f1c05446bf6069..2a89969bdebd06 100644
--- a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
@@ -175,6 +175,17 @@ unsigned getDefaultAMDHSACodeObjectVersion() {
return DefaultAMDHSACodeObjectVersion;
}
+unsigned getAMDHSACodeObjectVersion(unsigned ABIVersion) {
+ switch (ABIVersion) {
+ case ELF::ELFABIVERSION_AMDGPU_HSA_V4:
+ return 4;
+ case ELF::ELFABIVERSION_AMDGPU_HSA_V5:
+ return 5;
+ default:
+ return getDefaultAMDHSACodeObjectVersion();
+ }
+}
+
uint8_t getELFABIVersion(const Triple &T, unsigned CodeObjectVersion) {
if (T.getOS() != Triple::AMDHSA)
return 0;
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
index d3f55c79201747..849f0f8b200fae 100644
--- a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
@@ -50,6 +50,9 @@ bool isHsaAbi(const MCSubtargetInfo &STI);
/// \returns Code object version from the IR module flag.
unsigned getAMDHSACodeObjectVersion(const Module &M);
+/// \returns Code object version from ELF's e_ident[ABIVERSION].
+unsigned getAMDHSACodeObjectVersion(unsigned ABIVersion);
+
/// \returns The default HSA code object version. This should only be used when
/// we lack a more accurate CodeObjectVersion value (e.g. from the IR module
/// flag or a .amdhsa_code_object_version directive)
diff --git a/llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp b/llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
index ed7757be661582..0f9b55bfac1f3b 100644
--- a/llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
+++ b/llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
@@ -47,8 +47,9 @@ class WebAssemblyDisassembler final : public MCDisassembler {
ArrayRef<uint8_t> Bytes, uint64_t Address,
raw_ostream &CStream) const override;
std::optional<DecodeStatus>
- onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size, ArrayRef<uint8_t> Bytes,
- uint64_t Address, raw_ostream &CStream) const override;
+ onSymbolStart(SymbolInfoTy &Symbol, unsigned Version, uint64_t &Size,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &CStream) const override;
public:
WebAssemblyDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx,
@@ -122,8 +123,8 @@ bool parseImmediate(MCInst &MI, uint64_t &Size, ArrayRef<uint8_t> Bytes) {
}
std::optional<MCDisassembler::DecodeStatus>
-WebAssemblyDisassembler::onSymbolStart(SymbolInfoTy &Symbol, uint64_t &Size,
- ArrayRef<uint8_t> Bytes,
+WebAssemblyDisassembler::onSymbolStart(SymbolInfoTy &Symbol, unsigned Version,
+ uint64_t &Size, ArrayRef<uint8_t> Bytes,
uint64_t Address,
raw_ostream &CStream) const {
Size = 0;
diff --git a/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-cov5.s b/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-cov5.s
new file mode 100644
index 00000000000000..1190964b9d4632
--- /dev/null
+++ b/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-cov5.s
@@ -0,0 +1,23 @@
+; RUN: sed 's/CODE_OBJECT_VERSION/5/g' %s \
+; RUN: | llvm-mc --triple=amdgcn-amd-amdhsa -mcpu=gfx1010 -mattr=-xnack,+wavefrontsize32,-wavefrontsize64 -filetype=obj > %t.o
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd %t.o | FileCheck %s --check-prefixes=COV5,CHECK
+
+; RUN: sed 's/CODE_OBJECT_VERSION/4/g' %s \
+; RUN: | llvm-mc --triple=amdgcn-amd-amdhsa -mcpu=gfx1010 -mattr=-xnack,+wavefrontsize32,-wavefrontsize64 -filetype=obj > %t.o
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd %t.o | FileCheck %s --check-prefixes=COV4,CHECK
+
+; Verify that .amdhsa_uses_dynamic_stack is only printed on COV5+.
+
+; CHECK: .amdhsa_kernel kernel
+; ...
+; COV5: .amdhsa_uses_dynamic_stack 0
+; COV4-NOT: .amdhsa_uses_dynamic_stack
+; ...
+; CHECK: .end_amdhsa_kernel
+
+.amdhsa_code_object_version CODE_OBJECT_VERSION
+
+.amdhsa_kernel kernel
+ .amdhsa_next_free_vgpr 32
+ .amdhsa_next_free_sgpr 32
+.end_amdhsa_kernel
diff --git a/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx10.s b/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx10.s
index 58b01031afe383..81d0d868ab9184 100644
--- a/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx10.s
+++ b/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx10.s
@@ -4,7 +4,8 @@
;--- 1.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize32,-wavefrontsize64 -filetype=obj -mcpu=gfx1010 < 1.s > 1.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 1.o | tail -n +7 | tee 1-disasm.s | FileCheck 1.s
+; RUN: echo '.amdhsa_code_object_version 5' > 1-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 1.o | tail -n +7 | tee -a 1-disasm.s | FileCheck 1.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize32,-wavefrontsize64 -filetype=obj -mcpu=gfx1010 < 1-disasm.s > 1-disasm.o
; RUN: cmp 1.o 1-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -48,7 +49,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_flat_scratch_init 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 1
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
.amdhsa_next_free_vgpr 32
.amdhsa_next_free_sgpr 32
@@ -57,7 +60,8 @@
;--- 2.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1010 < 2.s > 2.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 2.o | tail -n +7 | tee 2-disasm.s | FileCheck 2.s
+; RUN: echo '.amdhsa_code_object_version 5' > 2-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 2.o | tail -n +7 | tee -a 2-disasm.s | FileCheck 2.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1010 < 2-disasm.s > 2-disasm.o
; RUN: cmp 2.o 2-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -101,7 +105,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_flat_scratch_init 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 0
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
.amdhsa_next_free_vgpr 32
.amdhsa_next_free_sgpr 32
@@ -110,7 +116,8 @@
;--- 3.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1010 < 3.s > 3.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 3.o | tail -n +7 | tee 3-disasm.s | FileCheck 3.s
+; RUN: echo '.amdhsa_code_object_version 5' > 3-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 3.o | tail -n +7 | tee -a 3-disasm.s | FileCheck 3.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1010 < 3-disasm.s > 3-disasm.o
; RUN: cmp 3.o 3-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -154,7 +161,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_flat_scratch_init 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 0
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
.amdhsa_next_free_vgpr 32
.amdhsa_next_free_sgpr 32
@@ -163,7 +172,8 @@
;--- 4.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1010 < 4.s > 4.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 4.o | tail -n +7 | tee 4-disasm.s | FileCheck 4.s
+; RUN: echo '.amdhsa_code_object_version 5' > 4-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 4.o | tail -n +7 | tee -a 4-disasm.s | FileCheck 4.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=-xnack,+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1010 < 4-disasm.s > 4-disasm.o
; RUN: cmp 4.o 4-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -207,7 +217,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_flat_scratch_init 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 0
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
.amdhsa_next_free_vgpr 32
.amdhsa_next_free_sgpr 32
diff --git a/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx11.s b/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx11.s
index 2133002908d9fc..750809128189f1 100644
--- a/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx11.s
+++ b/llvm/test/tools/llvm-objdump/ELF/AMDGPU/kd-gfx11.s
@@ -4,7 +4,8 @@
;--- 1.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=+wavefrontsize32,-wavefrontsize64 -filetype=obj -mcpu=gfx1100 < 1.s > 1.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 1.o | tail -n +7 | tee 1-disasm.s | FileCheck 1.s
+; RUN: echo '.amdhsa_code_object_version 5' > 1-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 1.o | tail -n +7 | tee -a 1-disasm.s | FileCheck 1.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=+wavefrontsize32,-wavefrontsize64 -filetype=obj -mcpu=gfx1100 < 1-disasm.s > 1-disasm.o
; RUN: cmp 1.o 1-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -49,7 +50,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_dispatch_id 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 1
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
.amdhsa_next_free_vgpr 32
.amdhsa_next_free_sgpr 32
@@ -58,7 +61,8 @@
;--- 2.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1100 < 2.s > 2.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 2.o | tail -n +7 | tee 2-disasm.s | FileCheck 2.s
+; RUN: echo '.amdhsa_code_object_version 5' > 2-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 2.o | tail -n +7 | tee -a 2-disasm.s | FileCheck 2.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1100 < 2-disasm.s > 2-disasm.o
; RUN: cmp 2.o 2-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -103,7 +107,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_dispatch_id 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 0
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
.amdhsa_next_free_vgpr 32
.amdhsa_next_free_sgpr 32
@@ -112,7 +118,8 @@
;--- 3.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1100 < 3.s > 3.o
-; RUN: llvm-objdump --disassemble-symbols=kernel.kd 3.o | tail -n +7 | tee 3-disasm.s | FileCheck 3.s
+; RUN: echo '.amdhsa_code_object_version 5' > 3-disasm.s
+; RUN: llvm-objdump --disassemble-symbols=kernel.kd 3.o | tail -n +7 | tee -a 3-disasm.s | FileCheck 3.s
; RUN: llvm-mc --triple=amdgcn-amd-amdhsa -mattr=+wavefrontsize64,-wavefrontsize32 -filetype=obj -mcpu=gfx1100 < 3-disasm.s > 3-disasm.o
; RUN: cmp 3.o 3-disasm.o
; CHECK: .amdhsa_kernel kernel
@@ -157,7 +164,9 @@
; CHECK-NEXT: .amdhsa_user_sgpr_dispatch_id 0
; CHECK-NEXT: .amdhsa_user_sgpr_private_segment_size 0
; CHECK-NEXT: .amdhsa_wavefront_size32 0
+; CHECK-NEXT: .amdhsa_uses_dynamic_stack 0
; CHECK-NEXT: .end_amdhsa_kernel
+.amdhsa_code_object_version 5
.amdhsa_kernel kernel
...
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I am indeed concerned about this. Can you place the version inside |
+1. The ABIVersion should be constant for a given file, so it feels like it should be configured up front when configuring the disassembler (and therefore presumably stored somewhere inside the disassembler class). |
Okay, I added a |
kzhuravl
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Jan 22, 2024
MaskRay
reviewed
Jan 26, 2024
| @@ -50,6 +50,9 @@ bool isHsaAbi(const MCSubtargetInfo &STI); | |||
| /// \returns Code object version from the IR module flag. | |||
| unsigned getAMDHSACodeObjectVersion(const Module &M); | |||
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| /// \returns Code object version from ELF's e_ident[ABIVERSION]. | |||
MaskRay
approved these changes
Jan 26, 2024
| ; RUN: | llvm-mc --triple=amdgcn-amd-amdhsa -mcpu=gfx1010 -mattr=-xnack,+wavefrontsize32,-wavefrontsize64 -filetype=obj > %t.o | ||
| ; RUN: llvm-objdump --disassemble-symbols=kernel.kd %t.o | FileCheck %s --check-prefixes=COV4,CHECK | ||
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| ; Verify that .amdhsa_uses_dynamic_stack is only printed on COV5+. |
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;; for a non-RUN-non-CHECK comment
jh7370
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Jan 26, 2024
kzhuravl
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Jan 31, 2024
This is needed to determine the code object version, which affects the disassembler output.
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…#78907) Admittedly, its a bit ugly to pass the ABIVersion through onSymbolStart but I'm not sure what a better place for it would be.
carlosgalvezp
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…#78907) Admittedly, its a bit ugly to pass the ABIVersion through onSymbolStart but I'm not sure what a better place for it would be.
agozillon
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Feb 5, 2024
…#78907) Admittedly, its a bit ugly to pass the ABIVersion through onSymbolStart but I'm not sure what a better place for it would be.
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Admittedly, its a bit ugly to pass the ABIVersion through onSymbolStart but I'm not sure what a better place for it would be.