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[BPF] extend BTF_KIND_FUNC to cover global, static and extern funcs

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Previously extern function is added as BTF_KIND_VAR. This does not work
well with existing BTF infrastructure as function expected to use
BTF_KIND_FUNC and BTF_KIND_FUNC_PROTO.

This patch added extern function to BTF_KIND_FUNC. The two bits 0:1
of btf_type.info are used to indicate what kind of function it is:
  0: static
  1: global
  2: extern

Differential Revision: https://reviews.llvm.org/D71638
This commit is contained in:
Yonghong Song 2019-12-17 16:24:23 -08:00
parent 26ed23d4d3
commit 98ea601eca
36 changed files with 381 additions and 142 deletions
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7
lib/Target/BPF/BTF.h
View File

@ -176,6 +176,13 @@ struct BTFParam {
uint32_t Type;
};
/// BTF_KIND_FUNC can be global, static or extern.
enum : uint8_t {
FUNC_STATIC = 0,
FUNC_GLOBAL = 1,
FUNC_EXTERN = 2,
};
/// Variable scoping information.
enum : uint8_t {
VAR_STATIC = 0, ///< Linkage: InternalLinkage

55
lib/Target/BPF/BTFDebug.cpp
View File

@ -308,10 +308,11 @@ void BTFTypeFuncProto::emitType(MCStreamer &OS) {
}
}
BTFTypeFunc::BTFTypeFunc(StringRef FuncName, uint32_t ProtoTypeId)
BTFTypeFunc::BTFTypeFunc(StringRef FuncName, uint32_t ProtoTypeId,
uint32_t Scope)
: Name(FuncName) {
Kind = BTF::BTF_KIND_FUNC;
BTFType.Info = Kind << 24;
BTFType.Info = (Kind << 24) | Scope;
BTFType.Type = ProtoTypeId;
}
@ -897,8 +898,9 @@ void BTFDebug::beginFunctionImpl(const MachineFunction *MF) {
visitSubroutineType(SP->getType(), true, FuncArgNames, ProtoTypeId);
// Construct subprogram func type
uint8_t Scope = SP->isLocalToUnit() ? BTF::FUNC_STATIC : BTF::FUNC_GLOBAL;
auto FuncTypeEntry =
std::make_unique<BTFTypeFunc>(SP->getName(), ProtoTypeId);
std::make_unique<BTFTypeFunc>(SP->getName(), ProtoTypeId, Scope);
uint32_t FuncTypeId = addType(std::move(FuncTypeEntry));
for (const auto &TypeEntry : TypeEntries)
@ -1012,6 +1014,12 @@ void BTFDebug::beginInstruction(const MachineInstr *MI) {
MI->getOpcode() == BPF::CORE_SHIFT) {
// relocation insn is a load, store or shift insn.
processReloc(MI->getOperand(3));
} else if (MI->getOpcode() == BPF::JAL) {
// check extern function references
const MachineOperand &MO = MI->getOperand(0);
if (MO.isGlobal()) {
processFuncPrototypes(dyn_cast<Function>(MO.getGlobal()));
}
}
// Skip this instruction if no DebugLoc or the DebugLoc
@ -1162,32 +1170,27 @@ bool BTFDebug::InstLower(const MachineInstr *MI, MCInst &OutMI) {
return false;
}
void BTFDebug::processFuncPrototypes() {
const Module *M = MMI->getModule();
for (const Function &F : M->functions()) {
const DISubprogram *SP = F.getSubprogram();
if (!SP || SP->isDefinition())
continue;
void BTFDebug::processFuncPrototypes(const Function *F) {
if (!F)
return;
uint32_t ProtoTypeId;
const std::unordered_map<uint32_t, StringRef> FuncArgNames;
visitSubroutineType(SP->getType(), false, FuncArgNames, ProtoTypeId);
const DISubprogram *SP = F->getSubprogram();
if (!SP || SP->isDefinition())
return;
auto VarEntry =
std::make_unique<BTFKindVar>(SP->getName(), ProtoTypeId,
BTF::VAR_GLOBAL_EXTERNAL);
uint32_t VarId = addType(std::move(VarEntry));
// Do not emit again if already emitted.
if (ProtoFunctions.find(F) != ProtoFunctions.end())
return;
ProtoFunctions.insert(F);
StringRef SecName = F.getSection();
if (SecName.empty())
SecName = ".extern";
uint32_t ProtoTypeId;
const std::unordered_map<uint32_t, StringRef> FuncArgNames;
visitSubroutineType(SP->getType(), false, FuncArgNames, ProtoTypeId);
if (DataSecEntries.find(SecName) == DataSecEntries.end()) {
DataSecEntries[SecName] = std::make_unique<BTFKindDataSec>(Asm, SecName);
}
DataSecEntries[SecName]->addVar(VarId, Asm->getSymbol(&F), 8);
}
uint8_t Scope = BTF::FUNC_EXTERN;
auto FuncTypeEntry =
std::make_unique<BTFTypeFunc>(SP->getName(), ProtoTypeId, Scope);
addType(std::move(FuncTypeEntry));
}
void BTFDebug::endModule() {
@ -1200,8 +1203,6 @@ void BTFDebug::endModule() {
// Collect global types/variables except MapDef globals.
processGlobals(false);
processFuncPrototypes();
for (auto &DataSec : DataSecEntries)
addType(std::move(DataSec.second));

6
lib/Target/BPF/BTFDebug.h
View File

@ -16,6 +16,7 @@
#include "llvm/ADT/StringMap.h"
#include "llvm/CodeGen/DebugHandlerBase.h"
#include <set>
#include <unordered_map>
#include "BTF.h"
@ -151,7 +152,7 @@ class BTFTypeFunc : public BTFTypeBase {
StringRef Name;
public:
BTFTypeFunc(StringRef FuncName, uint32_t ProtoTypeId);
BTFTypeFunc(StringRef FuncName, uint32_t ProtoTypeId, uint32_t Scope);
uint32_t getSize() { return BTFTypeBase::getSize(); }
void completeType(BTFDebug &BDebug);
void emitType(MCStreamer &OS);
@ -251,6 +252,7 @@ class BTFDebug : public DebugHandlerBase {
std::map<std::string, uint32_t> PatchImms;
std::map<StringRef, std::pair<bool, std::vector<BTFTypeDerived *>>>
FixupDerivedTypes;
std::set<const Function *>ProtoFunctions;
/// Add types to TypeEntries.
/// @{
@ -294,7 +296,7 @@ class BTFDebug : public DebugHandlerBase {
void processGlobals(bool ProcessingMapDef);
/// Generate types for function prototypes.
void processFuncPrototypes();
void processFuncPrototypes(const Function *);
/// Generate one field relocation record.
void generateFieldReloc(const MCSymbol *ORSym, DIType *RootTy,

4
test/CodeGen/BPF/BTF/binary-format.ll
View File

@ -18,12 +18,12 @@ entry:
; CHECK-EL: 0x00000010 30000000 33000000 01000000 00000001
; CHECK-EL: 0x00000020 04000000 20000001 00000000 0100000d
; CHECK-EL: 0x00000030 01000000 05000000 01000000 07000000
; CHECK-EL: 0x00000040 0000000c 02000000 00696e74 00610066
; CHECK-EL: 0x00000040 0100000c 02000000 00696e74 00610066
; CHECK-EB: 0x00000000 eb9f0100 00000018 00000000 00000030
; CHECK-EB: 0x00000010 00000030 00000033 00000001 01000000
; CHECK-EB: 0x00000020 00000004 01000020 00000000 0d000001
; CHECK-EB: 0x00000030 00000001 00000005 00000001 00000007
; CHECK-EB: 0x00000040 0c000000 00000002 00696e74 00610066
; CHECK-EB: 0x00000040 0c000001 00000002 00696e74 00610066
; CHECK: 0x00000050 002e7465 7874002f 746d702f 742e6300
; CHECK: 0x00000060 696e7420 6628696e 74206129 207b2072
; CHECK: 0x00000070 65747572 6e20613b 207d00

89
test/CodeGen/BPF/BTF/extern-builtin.ll Normal file
View File

@ -0,0 +1,89 @@
; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
; Source code:
; unsigned long long load_byte(void *skb,
; unsigned long long off) asm("llvm.bpf.load.byte");
; unsigned long long test(void *skb) {
; return load_byte(skb, 10);
; }
; Compilation flag:
; clang -target bpf -O2 -g -S -emit-llvm test.c
; Function Attrs: nounwind readonly
define dso_local i64 @test(i8* readonly %skb) local_unnamed_addr #0 !dbg !13 {
entry:
call void @llvm.dbg.value(metadata i8* %skb, metadata !17, metadata !DIExpression()), !dbg !18
%call = tail call i64 @llvm.bpf.load.byte(i8* %skb, i64 10), !dbg !19
ret i64 %call, !dbg !20
}
; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 60
; CHECK-NEXT: .long 60
; CHECK-NEXT: .long 78
; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 1)
; CHECK-NEXT: .long 33554432 # 0x2000000
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 2)
; CHECK-NEXT: .long 218103809 # 0xd000001
; CHECK-NEXT: .long 3
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 5 # BTF_KIND_INT(id = 3)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 8
; CHECK-NEXT: .long 64 # 0x40
; CHECK-NEXT: .long 28 # BTF_KIND_FUNC(id = 4)
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "skb" # string offset=1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "long long unsigned int" # string offset=5
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test" # string offset=28
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".text" # string offset=33
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=39
; CHECK-NEXT: .byte 0
; Function Attrs: nounwind readonly
declare !dbg !4 i64 @llvm.bpf.load.byte(i8*, i64) #1
; Function Attrs: nounwind readnone speculatable willreturn
declare void @llvm.dbg.value(metadata, metadata, metadata) #2
attributes #0 = { nounwind readonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readonly }
attributes #2 = { nounwind readnone speculatable willreturn }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10, !11}
!llvm.ident = !{!12}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 907019d835895443b198afcd992c42c9d3478fdf)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "load_byte", linkageName: "llvm.bpf.load.byte", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7, !8, !7}
!7 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
!9 = !{i32 7, !"Dwarf Version", i32 4}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !{i32 1, !"wchar_size", i32 4}
!12 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 907019d835895443b198afcd992c42c9d3478fdf)"}
!13 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 3, type: !14, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16)
!14 = !DISubroutineType(types: !15)
!15 = !{!7, !8}
!16 = !{!17}
!17 = !DILocalVariable(name: "skb", arg: 1, scope: !13, file: !1, line: 3, type: !8)
!18 = !DILocation(line: 0, scope: !13)
!19 = !DILocation(line: 4, column: 10, scope: !13)
!20 = !DILocation(line: 4, column: 3, scope: !13)

79
test/CodeGen/BPF/BTF/extern-func-arg.ll Normal file
View File

@ -0,0 +1,79 @@
; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
;
; Source code:
; extern int global_func(char arg);
; int test() { return global_func(0); }
; Compilation flag:
; clang -target bpf -O2 -g -S -emit-llvm test.c
; Function Attrs: nounwind
define dso_local i32 @test() local_unnamed_addr #0 !dbg !13 {
entry:
%call = tail call i32 @global_func(i8 signext 0) #2, !dbg !16
ret i32 %call, !dbg !17
}
; CHECK: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 72
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 4
; CHECK: .ascii "int" # string offset=1
; CHECK: .ascii "test" # string offset=5
; CHECK: .ascii "char" # string offset=55
; CHECK: .ascii "global_func" # string offset=60
declare !dbg !4 dso_local i32 @global_func(i8 signext) local_unnamed_addr #1
attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10, !11}
!llvm.ident = !{!12}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 987c5665e81822b32c895fd0c97a9a084b0d3106)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "global_func", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7, !8}
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!8 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
!9 = !{i32 7, !"Dwarf Version", i32 4}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !{i32 1, !"wchar_size", i32 4}
!12 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 987c5665e81822b32c895fd0c97a9a084b0d3106)"}
!13 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 2, type: !14, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!14 = !DISubroutineType(types: !15)
!15 = !{!7}
!16 = !DILocation(line: 2, column: 21, scope: !13)
!17 = !DILocation(line: 2, column: 14, scope: !13)

2
test/CodeGen/BPF/BTF/extern-global-var.ll
View File

@ -33,7 +33,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !7 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1

21
test/CodeGen/BPF/BTF/extern-var-func-weak-section.ll
View File

@ -23,9 +23,9 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 76
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 72
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
@ -34,7 +34,7 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001
@ -45,16 +45,9 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 72 # BTF_KIND_DATASEC(id = 7)
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long global_func
; CHECK-NEXT: .long 8
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0
@ -68,8 +61,6 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "abc" # string offset=72
; CHECK-NEXT: .byte 0
attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }

21
test/CodeGen/BPF/BTF/extern-var-func-weak.ll
View File

@ -23,9 +23,9 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 80
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 72
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
@ -34,7 +34,7 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001
@ -45,16 +45,9 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 72 # BTF_KIND_DATASEC(id = 7)
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long global_func
; CHECK-NEXT: .long 8
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0
@ -68,8 +61,6 @@ declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".extern" # string offset=72
; CHECK-NEXT: .byte 0
attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }

21
test/CodeGen/BPF/BTF/extern-var-func.ll
View File

@ -22,9 +22,9 @@ entry:
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 80
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 72
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
@ -33,7 +33,7 @@ entry:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001
@ -44,16 +44,9 @@ entry:
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 72 # BTF_KIND_DATASEC(id = 7)
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long global_func
; CHECK-NEXT: .long 8
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0
@ -67,8 +60,6 @@ entry:
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".extern" # string offset=72
; CHECK-NEXT: .byte 0
declare !dbg !4 dso_local i32 @global_func(i8 signext) local_unnamed_addr #1

38
test/CodeGen/BPF/BTF/extern-var-section.ll
View File

@ -28,8 +28,8 @@ entry:
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 144
; CHECK-NEXT: .long 144
; CHECK-NEXT: .long 128
; CHECK-NEXT: .long 128
; CHECK-NEXT: .long 79
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
@ -39,34 +39,30 @@ entry:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 4)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 5)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 6)
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 63 # BTF_KIND_VAR(id = 7)
; CHECK-NEXT: .long 72 # BTF_KIND_VAR(id = 7)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 75 # BTF_KIND_DATASEC(id = 8)
; CHECK-NEXT: .long 251658242 # 0xf000002
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 7
; CHECK-NEXT: .long ch
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 7
; CHECK-NEXT: .long global_func
; CHECK-NEXT: .long 8
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0
@ -78,9 +74,9 @@ entry:
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "char" # string offset=55
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "ch" # string offset=60
; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=63
; CHECK-NEXT: .ascii "ch" # string offset=72
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "abc" # string offset=75
; CHECK-NEXT: .byte 0

2
test/CodeGen/BPF/BTF/extern-var-struct-weak.ll
View File

@ -35,7 +35,7 @@ entry:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4)
; CHECK-NEXT: .long 134217728 # 0x8000000

2
test/CodeGen/BPF/BTF/extern-var-struct.ll
View File

@ -36,7 +36,7 @@ entry:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4)
; CHECK-NEXT: .long 134217728 # 0x8000000

38
test/CodeGen/BPF/BTF/extern-var-weak-section.ll
View File

@ -28,8 +28,8 @@ declare !dbg !6 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 144
; CHECK-NEXT: .long 144
; CHECK-NEXT: .long 128
; CHECK-NEXT: .long 128
; CHECK-NEXT: .long 79
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
@ -39,34 +39,30 @@ declare !dbg !6 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 4)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 5)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 6)
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 63 # BTF_KIND_VAR(id = 7)
; CHECK-NEXT: .long 72 # BTF_KIND_VAR(id = 7)
; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 75 # BTF_KIND_DATASEC(id = 8)
; CHECK-NEXT: .long 251658242 # 0xf000002
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 7
; CHECK-NEXT: .long ch
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 7
; CHECK-NEXT: .long global_func
; CHECK-NEXT: .long 8
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0
@ -78,9 +74,9 @@ declare !dbg !6 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "char" # string offset=55
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "ch" # string offset=60
; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=63
; CHECK-NEXT: .ascii "ch" # string offset=72
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "abc" # string offset=75
; CHECK-NEXT: .byte 0

2
test/CodeGen/BPF/BTF/filename.ll
View File

@ -28,7 +28,7 @@ define dso_local i32 @test() local_unnamed_addr #0 !dbg !7 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1

2
test/CodeGen/BPF/BTF/func-func-ptr.ll
View File

@ -39,7 +39,7 @@ entry:
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 8 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 4)
; CHECK-NEXT: .long 33554432 # 0x2000000

2
test/CodeGen/BPF/BTF/func-non-void.ll
View File

@ -31,7 +31,7 @@ define dso_local i32 @f1(i32 returned) local_unnamed_addr #0 !dbg !7 {
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 8 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1

2
test/CodeGen/BPF/BTF/func-source.ll
View File

@ -28,7 +28,7 @@ entry:
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 1 # BTF_KIND_FUNC(id = 2)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .byte 102 # string offset=1

2
test/CodeGen/BPF/BTF/func-typedef.ll
View File

@ -40,7 +40,7 @@ entry:
; CHECK-NEXT: .long 16
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 18 # BTF_KIND_FUNC(id = 5)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 4
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "__int" # string offset=1

2
test/CodeGen/BPF/BTF/func-unused-arg.ll
View File

@ -31,7 +31,7 @@ define dso_local i32 @f1(i32) local_unnamed_addr #0 !dbg !7 {
; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 8 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1

2
test/CodeGen/BPF/BTF/func-void.ll
View File

@ -24,7 +24,7 @@ define dso_local void @f1() local_unnamed_addr #0 !dbg !7 {
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 1 # BTF_KIND_FUNC(id = 2)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "f1" # string offset=1

2
test/CodeGen/BPF/BTF/local-var.ll
View File

@ -43,7 +43,7 @@ define dso_local i32 @foo(i8 signext) local_unnamed_addr #0 !dbg !7 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 12 # BTF_KIND_FUNC(id = 4)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 2
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "char" # string offset=1

96
test/CodeGen/BPF/BTF/static-func.ll Normal file
View File

@ -0,0 +1,96 @@
; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
;
; Source code:
; extern int foo(void);
; static __attribute__((noinline)) int test1() { return foo(); }
; int test2() { return test1(); }
; Compilation flag:
; clang -target bpf -O2 -g -S -emit-llvm test.c
; Function Attrs: nounwind
define dso_local i32 @test2() local_unnamed_addr #0 !dbg !12 {
entry:
%call = tail call fastcc i32 @test1(), !dbg !13
ret i32 %call, !dbg !14
}
; Function Attrs: noinline nounwind
define internal fastcc i32 @test1() unnamed_addr #1 !dbg !15 {
entry:
%call = tail call i32 @foo() #3, !dbg !16
ret i32 %call, !dbg !17
}
declare !dbg !4 dso_local i32 @foo() local_unnamed_addr #2
; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 88
; CHECK-NEXT: .long 64
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 54 # BTF_KIND_FUNC(id = 5)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 6)
; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 7)
; CHECK-NEXT: .long 201326594 # 0xc000002
; CHECK-NEXT: .long 6
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test2" # string offset=5
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".text" # string offset=11
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/bugs/test.c" # string offset=17
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test1" # string offset=54
; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "foo" # string offset=60
; CHECK-NEXT: .byte 0
attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { noinline nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!8, !9, !10}
!llvm.ident = !{!11}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 000f95c4157aee07bd4ffc3f59ffdb6c7ecae4af)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/bugs")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7}
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!8 = !{i32 7, !"Dwarf Version", i32 4}
!9 = !{i32 2, !"Debug Info Version", i32 3}
!10 = !{i32 1, !"wchar_size", i32 4}
!11 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 000f95c4157aee07bd4ffc3f59ffdb6c7ecae4af)"}
!12 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 3, type: !5, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!13 = !DILocation(line: 3, column: 22, scope: !12)
!14 = !DILocation(line: 3, column: 15, scope: !12)
!15 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 2, type: !5, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
!16 = !DILocation(line: 2, column: 55, scope: !15)
!17 = !DILocation(line: 2, column: 48, scope: !15)

2
test/CodeGen/BPF/BTF/static-var-derived-type.ll
View File

@ -51,7 +51,7 @@ define dso_local i64 @foo() local_unnamed_addr #0 !dbg !27 {
; CHECK-NEXT: .long 8
; CHECK-NEXT: .long 16777280 # 0x1000040
; CHECK-NEXT: .long 10 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
; CHECK-NEXT: .long 150994944 # 0x9000000

2
test/CodeGen/BPF/BTF/static-var-inited-sec.ll
View File

@ -40,7 +40,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
; CHECK-NEXT: .long 150994944 # 0x9000000

2
test/CodeGen/BPF/BTF/static-var-inited.ll
View File

@ -40,7 +40,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
; CHECK-NEXT: .long 150994944 # 0x9000000

2
test/CodeGen/BPF/BTF/static-var-readonly-sec.ll
View File

@ -40,7 +40,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 4)
; CHECK-NEXT: .long 167772160 # 0xa000000

2
test/CodeGen/BPF/BTF/static-var-readonly.ll
View File

@ -40,7 +40,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_CONST(id = 4)
; CHECK-NEXT: .long 167772160 # 0xa000000

2
test/CodeGen/BPF/BTF/static-var-sec.ll
View File

@ -40,7 +40,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
; CHECK-NEXT: .long 150994944 # 0x9000000

2
test/CodeGen/BPF/BTF/static-var-zerolen-array.ll
View File

@ -37,7 +37,7 @@ define dso_local i32 @test() local_unnamed_addr #0 !dbg !21 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
; CHECK-NEXT: .long 150994944 # 0x9000000

2
test/CodeGen/BPF/BTF/static-var.ll
View File

@ -40,7 +40,7 @@ define dso_local i32 @foo() local_unnamed_addr #0 !dbg !2 {
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4)
; CHECK-NEXT: .long 150994944 # 0x9000000

2
test/CodeGen/BPF/CORE/offset-reloc-basic.ll
View File

@ -78,7 +78,7 @@ define dso_local i32 @bpf_prog(%struct.sk_buff*) local_unnamed_addr #0 !dbg !15
; CHECK-NEXT: .long 30
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 34 # BTF_KIND_FUNC(id = 7)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 6
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "sk_buff" # string offset=1

2
test/CodeGen/BPF/CORE/offset-reloc-multilevel.ll
View File

@ -82,7 +82,7 @@ define dso_local i32 @bpf_prog(%struct.sk_buff*) local_unnamed_addr #0 !dbg !15
; CHECK-NEXT: .long 44
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 48 # BTF_KIND_FUNC(id = 6)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 5
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "sk_buff" # string offset=1

2
test/CodeGen/BPF/CORE/offset-reloc-struct-anonymous.ll
View File

@ -92,7 +92,7 @@ define dso_local i32 @bpf_prog(%struct.sk_buff*) local_unnamed_addr #0 !dbg !15
; CHECK-NEXT: .long 53
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 57 # BTF_KIND_FUNC(id = 8)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 7
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "sk_buff" # string offset=1

2
test/CodeGen/BPF/CORE/offset-reloc-struct-array.ll
View File

@ -93,7 +93,7 @@ define dso_local i32 @bpf_prog(%struct.sk_buff*) local_unnamed_addr #0 !dbg !15
; CHECK-NEXT: .long 64
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 68 # BTF_KIND_FUNC(id = 8)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 7
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "sk_buff" # string offset=1

2
test/CodeGen/BPF/CORE/offset-reloc-union.ll
View File

@ -96,7 +96,7 @@ define dso_local i32 @bpf_prog(%union.sk_buff*) local_unnamed_addr #0 !dbg !15 {
; CHECK-NEXT: .long 41
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 45 # BTF_KIND_FUNC(id = 7)
; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 201326593 # 0xc000001
; CHECK-NEXT: .long 6
; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "sk_buff" # string offset=1