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merged 14 commits into from
Feb 25, 2025
Merged

[AArch64][Build Attributes] Improve Parsing and Formatting #126530

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512784f
[AArch64][Build Attributes] Improve testing (delete previous tests fi…
sivan-shani Feb 17, 2025
506aad3
[AArch64][Build Attributes] Standardize parsing error messages
sivan-shani Feb 17, 2025
1fb501d
[AArch64][Build Attributes] Print Tags as Numbers with Comments
sivan-shani Feb 17, 2025
083bd48
[AArch64][Build Attributes] Fix Parsing of Some Tags and Values
sivan-shani Feb 17, 2025
a126df1
[AArch64][Build Attributes] Remove Assertion for Duplicate Values
sivan-shani Feb 17, 2025
e453ae0
[AArch64][Build Attributes] Add test files
sivan-shani Feb 17, 2025
c161c04
[AArch64][Build Attributes] Same Tag different Value: override
sivan-shani Feb 18, 2025
9c3f0f7
[AArch64][Build Attributes] Improve Parsing and Formatting
sivan-shani Feb 18, 2025
3ae07d1
[AArch64][Build Attributes] Remove unused 'Override' parameter
sivan-shani Feb 19, 2025
badefe8
[AArch64][Build Attributes] Remove redundant comments and unneeded case
sivan-shani Feb 19, 2025
6fdc1ee
Remove prefix aarch64 from test files residing in the AArch64 folder
sivan-shani Feb 20, 2025
c1f74f9
For llvm-mc, omit -o - (default)
sivan-shani Feb 20, 2025
d7517cd
handle unnecessary switch defaults
sivan-shani Feb 20, 2025
ae37558
Remove unnecessary condition check when tag exists.
sivan-shani Feb 24, 2025
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10 changes: 5 additions & 5 deletions llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -482,10 +482,10 @@ void AArch64AsmPrinter::emitAttributes(unsigned Flags,
AArch64BuildAttrs::SubsectionType::ULEB128);
TS->emitAttribute(
AArch64BuildAttrs::getVendorName(AArch64BuildAttrs::AEABI_PAUTHABI),
AArch64BuildAttrs::TAG_PAUTH_PLATFORM, PAuthABIPlatform, "", false);
AArch64BuildAttrs::TAG_PAUTH_PLATFORM, PAuthABIPlatform, "");
TS->emitAttribute(
AArch64BuildAttrs::getVendorName(AArch64BuildAttrs::AEABI_PAUTHABI),
AArch64BuildAttrs::TAG_PAUTH_SCHEMA, PAuthABIVersion, "", false);
AArch64BuildAttrs::TAG_PAUTH_SCHEMA, PAuthABIVersion, "");
}

unsigned BTIValue = (Flags & AArch64BuildAttrs::Feature_BTI_Flag) ? 1 : 0;
Expand All @@ -499,13 +499,13 @@ void AArch64AsmPrinter::emitAttributes(unsigned Flags,
AArch64BuildAttrs::SubsectionType::ULEB128);
TS->emitAttribute(AArch64BuildAttrs::getVendorName(
AArch64BuildAttrs::AEABI_FEATURE_AND_BITS),
AArch64BuildAttrs::TAG_FEATURE_BTI, BTIValue, "", false);
AArch64BuildAttrs::TAG_FEATURE_BTI, BTIValue, "");
TS->emitAttribute(AArch64BuildAttrs::getVendorName(
AArch64BuildAttrs::AEABI_FEATURE_AND_BITS),
AArch64BuildAttrs::TAG_FEATURE_PAC, PACValue, "", false);
AArch64BuildAttrs::TAG_FEATURE_PAC, PACValue, "");
TS->emitAttribute(AArch64BuildAttrs::getVendorName(
AArch64BuildAttrs::AEABI_FEATURE_AND_BITS),
AArch64BuildAttrs::TAG_FEATURE_GCS, GCSValue, "", false);
AArch64BuildAttrs::TAG_FEATURE_GCS, GCSValue, "");
}
}

Expand Down
38 changes: 19 additions & 19 deletions llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7870,8 +7870,7 @@ bool AArch64AsmParser::parseDirectiveAeabiSubSectionHeader(SMLoc L) {
IsOptional = AArch64BuildAttrs::getOptionalID(Optionality);
if (AArch64BuildAttrs::OPTIONAL_NOT_FOUND == IsOptional) {
Error(Parser.getTok().getLoc(),
AArch64BuildAttrs::getSubsectionOptionalUnknownError() + ": " +
Optionality);
AArch64BuildAttrs::getSubsectionOptionalUnknownError());
return true;
}
if (SubsectionExists) {
Expand Down Expand Up @@ -7919,7 +7918,7 @@ bool AArch64AsmParser::parseDirectiveAeabiSubSectionHeader(SMLoc L) {
Type = AArch64BuildAttrs::getTypeID(Name);
if (AArch64BuildAttrs::TYPE_NOT_FOUND == Type) {
Error(Parser.getTok().getLoc(),
AArch64BuildAttrs::getSubsectionTypeUnknownError() + ": " + Name);
AArch64BuildAttrs::getSubsectionTypeUnknownError());
return true;
}
if (SubsectionExists) {
Expand Down Expand Up @@ -7948,6 +7947,7 @@ bool AArch64AsmParser::parseDirectiveAeabiSubSectionHeader(SMLoc L) {
}
}
Parser.Lex();

// Parsing finished, check for trailing tokens.
if (Parser.getTok().isNot(llvm::AsmToken::EndOfStatement)) {
Error(Parser.getTok().getLoc(), "unexpected token for AArch64 build "
Expand Down Expand Up @@ -7986,14 +7986,18 @@ bool AArch64AsmParser::parseDirectiveAeabiAArch64Attr(SMLoc L) {

StringRef TagStr = "";
unsigned Tag;
if (Parser.getTok().is(AsmToken::Identifier)) {
if (Parser.getTok().is(AsmToken::Integer)) {
Tag = getTok().getIntVal();
} else if (Parser.getTok().is(AsmToken::Identifier)) {
TagStr = Parser.getTok().getIdentifier();
switch (ActiveSubsectionID) {
default:
assert(0 && "Subsection name error");
break;
case AArch64BuildAttrs::VENDOR_UNKNOWN:
// Private subsection, accept any tag.
// Tag was provided as an unrecognized string instead of an unsigned
// integer
Error(Parser.getTok().getLoc(), "unrecognized Tag: '" + TagStr +
"' \nExcept for public subsections, "
"tags have to be an unsigned int.");
return true;
break;
case AArch64BuildAttrs::AEABI_PAUTHABI:
Tag = AArch64BuildAttrs::getPauthABITagsID(TagStr);
Expand All @@ -8014,8 +8018,6 @@ bool AArch64AsmParser::parseDirectiveAeabiAArch64Attr(SMLoc L) {
}
break;
}
} else if (Parser.getTok().is(AsmToken::Integer)) {
Tag = getTok().getIntVal();
} else {
Error(Parser.getTok().getLoc(), "AArch64 build attributes tag not found");
return true;
Expand Down Expand Up @@ -8059,10 +8061,9 @@ bool AArch64AsmParser::parseDirectiveAeabiAArch64Attr(SMLoc L) {
Error(Parser.getTok().getLoc(), "AArch64 build attributes value not found");
return true;
}
// Check for possible unaccepted values for known tags (AEABI_PAUTHABI,
// AEABI_FEATURE_AND_BITS)
if (!(ActiveSubsectionID == AArch64BuildAttrs::VENDOR_UNKNOWN) &&
TagStr != "") { // TagStr was a recognized string
// Check for possible unaccepted values for known tags
// (AEABI_FEATURE_AND_BITS)
if (ActiveSubsectionID == AArch64BuildAttrs::AEABI_FEATURE_AND_BITS) {
if (0 != ValueInt && 1 != ValueInt) {
Error(Parser.getTok().getLoc(),
"unknown AArch64 build attributes Value for Tag '" + TagStr +
Expand All @@ -8071,7 +8072,8 @@ bool AArch64AsmParser::parseDirectiveAeabiAArch64Attr(SMLoc L) {
}
}
Parser.Lex();
// Parsing finished, check for trailing tokens.

// Parsing finished. Check for trailing tokens.
if (Parser.getTok().isNot(llvm::AsmToken::EndOfStatement)) {
Error(Parser.getTok().getLoc(),
"unexpected token for AArch64 build attributes tag and value "
Expand All @@ -8080,13 +8082,11 @@ bool AArch64AsmParser::parseDirectiveAeabiAArch64Attr(SMLoc L) {
}

if (unsigned(-1) != ValueInt) {
getTargetStreamer().emitAttribute(ActiveSubsectionName, Tag, ValueInt, "",
false);
getTargetStreamer().emitAttribute(ActiveSubsectionName, Tag, ValueInt, "");
}

if ("" != ValueStr) {
getTargetStreamer().emitAttribute(ActiveSubsectionName, Tag, unsigned(-1),
ValueStr, false);
ValueStr);
}
return false;
}
Expand Down
36 changes: 15 additions & 21 deletions llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFStreamer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -151,7 +151,7 @@ class AArch64TargetAsmStreamer : public AArch64TargetStreamer {
}

void emitAttribute(StringRef VendorName, unsigned Tag, unsigned Value,
std::string String, bool Override) override {
std::string String) override {

// AArch64 build attributes for assembly attribute form:
// .aeabi_attribute tag, value
Expand All @@ -169,13 +169,12 @@ class AArch64TargetAsmStreamer : public AArch64TargetStreamer {
case AArch64BuildAttrs::VENDOR_UNKNOWN:
if (unsigned(-1) != Value) {
OS << "\t.aeabi_attribute" << "\t" << Tag << ", " << Value;
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "",
Override);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "");
}
if ("" != String) {
OS << "\t.aeabi_attribute" << "\t" << Tag << ", " << String;
AArch64TargetStreamer::emitAttribute(VendorName, Tag, unsigned(-1),
String, Override);
String);
}
break;
// Note: AEABI_FEATURE_AND_BITS takes only unsigned values
Expand All @@ -185,16 +184,14 @@ class AArch64TargetAsmStreamer : public AArch64TargetStreamer {
OS << "\t.aeabi_attribute" << "\t" << Tag << ", " << Value;
// Keep the data structure consistent with the case of ELF emission
// (important for llvm-mc asm parsing)
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "",
Override);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "");
break;
case AArch64BuildAttrs::TAG_FEATURE_BTI:
case AArch64BuildAttrs::TAG_FEATURE_GCS:
case AArch64BuildAttrs::TAG_FEATURE_PAC:
OS << "\t.aeabi_attribute" << "\t"
<< AArch64BuildAttrs::getFeatureAndBitsTagsStr(Tag) << ", " << Value;
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "",
Override);
OS << "\t.aeabi_attribute" << "\t" << Tag << ", " << Value << "\t// "
<< AArch64BuildAttrs::getFeatureAndBitsTagsStr(Tag);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "");
break;
}
break;
Expand All @@ -205,15 +202,13 @@ class AArch64TargetAsmStreamer : public AArch64TargetStreamer {
OS << "\t.aeabi_attribute" << "\t" << Tag << ", " << Value;
// Keep the data structure consistent with the case of ELF emission
// (important for llvm-mc asm parsing)
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "",
Override);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "");
break;
case AArch64BuildAttrs::TAG_PAUTH_PLATFORM:
case AArch64BuildAttrs::TAG_PAUTH_SCHEMA:
OS << "\t.aeabi_attribute" << "\t"
<< AArch64BuildAttrs::getPauthABITagsStr(Tag) << ", " << Value;
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "",
Override);
OS << "\t.aeabi_attribute" << "\t" << Tag << ", " << Value << "\t// "
<< AArch64BuildAttrs::getPauthABITagsStr(Tag);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "");
break;
}
break;
Expand Down Expand Up @@ -426,13 +421,12 @@ void AArch64TargetELFStreamer::emitAtributesSubsection(
}

void AArch64TargetELFStreamer::emitAttribute(StringRef VendorName, unsigned Tag,
unsigned Value, std::string String,
bool Override) {
unsigned Value,
std::string String) {
if (unsigned(-1) != Value)
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "", Override);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, Value, "");
if ("" != String)
AArch64TargetStreamer::emitAttribute(VendorName, Tag, unsigned(-1), String,
Override);
AArch64TargetStreamer::emitAttribute(VendorName, Tag, unsigned(-1), String);
}

void AArch64TargetELFStreamer::emitInst(uint32_t Inst) {
Expand Down
30 changes: 14 additions & 16 deletions llvm/lib/Target/AArch64/MCTargetDesc/AArch64TargetStreamer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/ConstantPools.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSubtargetInfo.h"
Expand Down Expand Up @@ -193,8 +194,7 @@ AArch64TargetStreamer::getAtributesSubsectionByName(StringRef Name) {
}

void AArch64TargetStreamer::emitAttribute(StringRef VendorName, unsigned Tag,
unsigned Value, std::string String,
bool Override) {
unsigned Value, std::string String) {

if (unsigned(-1) == Value && "" == String) {
assert(0 && "Arguments error");
Expand All @@ -214,22 +214,20 @@ void AArch64TargetStreamer::emitAttribute(StringRef VendorName, unsigned Tag,
return;
}
for (MCELFStreamer::AttributeItem &Item : SubSection.Content) {
// Tag already exists
if (Item.Tag == Tag) {
if (!Override) {
if ((unsigned(-1) != Value && Item.IntValue != Value) ||
("" != String && Item.StringValue != String)) {
assert(0 &&
"Can not add AArch64 build attribute: An attribute with "
"the same tag and a different value already exists");
return;
} else {
// Case Item.IntValue == Value, no need to emit twice
assert(0 &&
"AArch64 build attribute: An attribute with the same tag "
"and a same value already exists");
return;
}
// New value for existing tag: update tag
if ((unsigned(-1) != Value && Item.IntValue != Value) ||
("" != String && Item.StringValue != String)) {
Item.Type = unsigned(-1) != Value
? MCELFStreamer::AttributeItem::NumericAttribute
: MCELFStreamer::AttributeItem::TextAttribute;
Item.IntValue = unsigned(-1) != Value ? Value : unsigned(-1);
Item.StringValue = unsigned(-1) != Value ? "" : String;
return;
}
// Same value for existing tag: do nothing
return;
}
}
if (unsigned(-1) != Value)
Expand Down
4 changes: 2 additions & 2 deletions llvm/lib/Target/AArch64/MCTargetDesc/AArch64TargetStreamer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,7 @@ class AArch64TargetStreamer : public MCTargetStreamer {
AArch64BuildAttrs::SubsectionOptional IsOptional,
AArch64BuildAttrs::SubsectionType ParameterType);
virtual void emitAttribute(StringRef VendorName, unsigned Tag, unsigned Value,
std::string String, bool Override);
std::string String);
void activateAtributesSubsection(StringRef VendorName);
std::unique_ptr<MCELFStreamer::AttributeSubSection>
getActiveAtributesSubsection();
Expand All @@ -127,7 +127,7 @@ class AArch64TargetELFStreamer : public AArch64TargetStreamer {
StringRef VendorName, AArch64BuildAttrs::SubsectionOptional IsOptional,
AArch64BuildAttrs::SubsectionType ParameterType) override;
void emitAttribute(StringRef VendorName, unsigned Tag, unsigned Value,
std::string String, bool Override = false) override;
std::string String) override;
void emitInst(uint32_t Inst) override;
void emitDirectiveVariantPCS(MCSymbol *Symbol) override;
void finish() override;
Expand Down
6 changes: 3 additions & 3 deletions llvm/test/CodeGen/AArch64/aarch64-build-attributes-all.ll
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Expand Up @@ -2,9 +2,9 @@
; RUN: llc %s -filetype=obj -o - | llvm-readelf --hex-dump=.ARM.attributes - | FileCheck %s --check-prefix=ELF

; ASM: .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
; ASM-NEXT: .aeabi_attribute Tag_Feature_BTI, 1
; ASM-NEXT: .aeabi_attribute Tag_Feature_PAC, 1
; ASM-NEXT: .aeabi_attribute Tag_Feature_GCS, 1
; ASM-NEXT: .aeabi_attribute 0, 1 // Tag_Feature_BTI
; ASM-NEXT: .aeabi_attribute 1, 1 // Tag_Feature_PAC
; ASM-NEXT: .aeabi_attribute 2, 1 // Tag_Feature_GCS

; ELF: Hex dump of section '.ARM.attributes':
; ELF-NEXT: 0x00000000 41230000 00616561 62695f66 65617475 A#...aeabi_featu
Expand Down
6 changes: 3 additions & 3 deletions llvm/test/CodeGen/AArch64/aarch64-build-attributes-bti.ll
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Expand Up @@ -2,9 +2,9 @@
; RUN: llc %s -filetype=obj -o - | llvm-readelf --hex-dump=.ARM.attributes - | FileCheck %s --check-prefix=ELF

; ASM: .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
; ASM-NEXT: .aeabi_attribute Tag_Feature_BTI, 1
; ASM-NEXT: .aeabi_attribute Tag_Feature_PAC, 0
; ASM-NEXT: .aeabi_attribute Tag_Feature_GCS, 0
; ASM-NEXT: .aeabi_attribute 0, 1 // Tag_Feature_BTI
; ASM-NEXT: .aeabi_attribute 1, 0 // Tag_Feature_PAC
; ASM-NEXT: .aeabi_attribute 2, 0 // Tag_Feature_GCS

; ELF: Hex dump of section '.ARM.attributes':
; ELF-NEXT: 0x00000000 41230000 00616561 62695f66 65617475 A#...aeabi_featu
Expand Down
6 changes: 3 additions & 3 deletions llvm/test/CodeGen/AArch64/aarch64-build-attributes-gcs.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -2,9 +2,9 @@
; RUN: llc %s -filetype=obj -o - | llvm-readelf --hex-dump=.ARM.attributes - | FileCheck %s --check-prefix=ELF

; ASM: .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
; ASM-NEXT: .aeabi_attribute Tag_Feature_BTI, 0
; ASM-NEXT: .aeabi_attribute Tag_Feature_PAC, 0
; ASM-NEXT: .aeabi_attribute Tag_Feature_GCS, 1
; ASM-NEXT: .aeabi_attribute 0, 0 // Tag_Feature_BTI
; ASM-NEXT: .aeabi_attribute 1, 0 // Tag_Feature_PAC
; ASM-NEXT: .aeabi_attribute 2, 1 // Tag_Feature_GCS

; ELF: Hex dump of section '.ARM.attributes':
; ELF-NEXT: 0x00000000 41230000 00616561 62695f66 65617475 A#...aeabi_featu
Expand Down
6 changes: 3 additions & 3 deletions llvm/test/CodeGen/AArch64/aarch64-build-attributes-pac.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -2,9 +2,9 @@
; RUN: llc %s -filetype=obj -o - | llvm-readelf --hex-dump=.ARM.attributes - | FileCheck %s --check-prefix=ELF

; ASM: .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
; ASM-NEXT: .aeabi_attribute Tag_Feature_BTI, 0
; ASM-NEXT: .aeabi_attribute Tag_Feature_PAC, 1
; ASM-NEXT: .aeabi_attribute Tag_Feature_GCS, 0
; ASM-NEXT: .aeabi_attribute 0, 0 // Tag_Feature_BTI
; ASM-NEXT: .aeabi_attribute 1, 1 // Tag_Feature_PAC
; ASM-NEXT: .aeabi_attribute 2, 0 // Tag_Feature_GCS

; ELF: Hex dump of section '.ARM.attributes':
; ELF-NEXT: 0x00000000 41230000 00616561 62695f66 65617475 A#...aeabi_featu
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/CodeGen/AArch64/aarch64-build-attributes-pauthabi.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,8 @@
; RUN: llc %s -filetype=obj -o - | llvm-readelf --hex-dump=.ARM.attributes - | FileCheck %s --check-prefix=ELF

; ASM: .aeabi_subsection aeabi_pauthabi, required, uleb128
; ASM-NEXT: .aeabi_attribute Tag_PAuth_Platform, 2
; ASM-NEXT: .aeabi_attribute Tag_PAuth_Schema, 31
; ASM-NEXT: .aeabi_attribute 1, 2 // Tag_PAuth_Platform
; ASM-NEXT: .aeabi_attribute 2, 31 // Tag_PAuth_Schema

; ELF: Hex dump of section '.ARM.attributes':
; ELF-NEXT: 0x00000000 41190000 00616561 62695f70 61757468 A....aeabi_pauth
Expand Down
43 changes: 43 additions & 0 deletions llvm/test/MC/AArch64/aarch64-build-attributes-asm-aeabi-aeabi-known.s
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@@ -0,0 +1,43 @@
// RUN: llvm-mc -triple=aarch64 %s -o - | FileCheck %s --check-prefix=ASM
// RUN: llvm-mc -triple=aarch64 -filetype=obj %s -o - | llvm-readelf --hex-dump=.ARM.attributes - | FileCheck %s --check-prefix=ELF

// ASM: .aeabi_subsection aeabi_pauthabi, required, uleb128
// ASM: .aeabi_attribute 1, 7 // Tag_PAuth_Platform
// ASM: .aeabi_attribute 2, 777 // Tag_PAuth_Schema
// ASM: .aeabi_attribute 2, 777 // Tag_PAuth_Schema
// ASM: .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
// ASM: .aeabi_attribute 0, 1 // Tag_Feature_BTI
// ASM: .aeabi_attribute 1, 1 // Tag_Feature_PAC
// ASM: .aeabi_attribute 2, 1 // Tag_Feature_GCS
// ASM: .aeabi_subsection aeabi_pauthabi, required, uleb128
// ASM: .aeabi_attribute 1, 7 // Tag_PAuth_Platform
// ASM: .aeabi_attribute 2, 777 // Tag_PAuth_Schema
// ASM: .aeabi_attribute 2, 777 // Tag_PAuth_Schema
// ASM: .aeabi_subsection aeabi_feature_and_bits, optional, uleb128
// ASM: .aeabi_attribute 0, 1 // Tag_Feature_BTI
// ASM: .aeabi_attribute 1, 1 // Tag_Feature_PAC
// ASM: .aeabi_attribute 2, 1 // Tag_Feature_GCS

// ELF: Hex dump of section '.ARM.attributes':
// ELF: 0x00000000 411a0000 00616561 62695f70 61757468 A....aeabi_pauth
// ELF: 0x00000010 61626900 00000107 02890623 00000061 abi........#...a
// ELF: 0x00000020 65616269 5f666561 74757265 5f616e64 eabi_feature_and
// ELF: 0x00000030 5f626974 73000100 00010101 0201 _bits.........


.aeabi_subsection aeabi_pauthabi, required, uleb128 // test header comment
.aeabi_attribute Tag_PAuth_Platform, 7
.aeabi_attribute Tag_PAuth_Schema, 777
.aeabi_attribute Tag_PAuth_Schema, 777
.aeabi_subsection aeabi_feature_and_bits, optional, uleb128
.aeabi_attribute Tag_Feature_BTI, 1
.aeabi_attribute Tag_Feature_PAC, 1
.aeabi_attribute Tag_Feature_GCS, 1
.aeabi_subsection aeabi_pauthabi, required, uleb128
.aeabi_attribute 1, 7 // Tag_PAuth_Platform
.aeabi_attribute 2, 777 // Tag_PAuth_Schema
.aeabi_attribute 2, 777 // Tag_PAuth_Schema
.aeabi_subsection aeabi_feature_and_bits, optional, uleb128
.aeabi_attribute 0, 1 // Tag_Feature_BTI
.aeabi_attribute 1, 1 // Tag_Feature_PAC
.aeabi_attribute 2, 1 // Tag_Feature_GCS
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