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Differential D71290

[BPF] put not-section-attribute externs into BTF ".extern" data section
ClosedPublic

Authored by yonghong-song on Dec 10 2019, 11:14 AM.

Details

Reviewers
ast
anakryiko
Summary

Currently for extern variables with section attribute, those
BTF_KIND_VARs will not be placed in any DataSec. This is
inconvenient as any other generated BTF_KIND_VAR belongs to
one DataSec. This patch put these extern variables into
".extern" section so bpf loader can have a consistent
processing mechanism for all data sections and variables.

Diff Detail

Event Timeline

yonghong-song created this revision.Dec 10 2019, 11:14 AM
Herald added a project: Restricted Project. · View Herald TranscriptDec 10 2019, 11:14 AM
Herald added subscribers: llvm-commits, hiraditya. · View Herald Transcript
anakryiko accepted this revision.Dec 10 2019, 11:20 AM

awesome, thanks!

This revision is now accepted and ready to land.Dec 10 2019, 11:20 AM
ast accepted this revision.Dec 10 2019, 11:21 AM

lgtm as well

yonghong-song closed this revision.Dec 10 2019, 2:03 PM

merged.

Revision Contents

PathSize
llvm/
lib/
Target/
BPF/
8 lines
test/
CodeGen/
BPF/
BTF/
14 lines
14 lines
14 lines
14 lines

Diff 233154

llvm/lib/Target/BPF/BTFDebug.cpp

Show First 20 Lines • Show All 1,059 Lines • ▼ Show 20 Lines for (const GlobalVariable &Global : M->globals()) {
if (Global.hasSection()) { if (Global.hasSection()) {
SecName = Global.getSection(); SecName = Global.getSection();
} else if (Global.hasInitializer()) { } else if (Global.hasInitializer()) {
// data, bss, or readonly sections // data, bss, or readonly sections
if (Global.isConstant()) if (Global.isConstant())
SecName = ".rodata"; SecName = ".rodata";
else else
SecName = Global.getInitializer()->isZeroValue() ? ".bss" : ".data"; SecName = Global.getInitializer()->isZeroValue() ? ".bss" : ".data";
} else {
// Unnamed extern variables, put them into ".extern" section.
SecName = ".extern";
} }
if (ProcessingMapDef != SecName.startswith(".maps")) if (ProcessingMapDef != SecName.startswith(".maps"))
continue; continue;
SmallVector<DIGlobalVariableExpression *, 1> GVs; SmallVector<DIGlobalVariableExpression *, 1> GVs;
Global.getDebugInfo(GVs); Global.getDebugInfo(GVs);
Show All 32 Lines for (const GlobalVariable &Global : M->globals()) {
} else { } else {
GVarInfo = BTF::VAR_GLOBAL_EXTERNAL; GVarInfo = BTF::VAR_GLOBAL_EXTERNAL;
} }
auto VarEntry = auto VarEntry =
std::make_unique<BTFKindVar>(Global.getName(), GVTypeId, GVarInfo); std::make_unique<BTFKindVar>(Global.getName(), GVTypeId, GVarInfo);
uint32_t VarId = addType(std::move(VarEntry)); uint32_t VarId = addType(std::move(VarEntry));
if (SecName.empty()) assert(!SecName.empty());
continue;
// Find or create a DataSec // Find or create a DataSec
if (DataSecEntries.find(SecName) == DataSecEntries.end()) { if (DataSecEntries.find(SecName) == DataSecEntries.end()) {
DataSecEntries[SecName] = std::make_unique<BTFKindDataSec>(Asm, SecName); DataSecEntries[SecName] = std::make_unique<BTFKindDataSec>(Asm, SecName);
} }
// Calculate symbol size // Calculate symbol size
const DataLayout &DL = Global.getParent()->getDataLayout(); const DataLayout &DL = Global.getParent()->getDataLayout();
Show All 36 Lines for (const Function &F : M->functions()) {
auto VarEntry = auto VarEntry =
std::make_unique<BTFKindVar>(SP->getName(), ProtoTypeId, std::make_unique<BTFKindVar>(SP->getName(), ProtoTypeId,
BTF::VAR_GLOBAL_EXTERNAL); BTF::VAR_GLOBAL_EXTERNAL);
uint32_t VarId = addType(std::move(VarEntry)); uint32_t VarId = addType(std::move(VarEntry));
StringRef SecName = F.getSection(); StringRef SecName = F.getSection();
if (SecName.empty()) if (SecName.empty())
continue; SecName = ".extern";
if (DataSecEntries.find(SecName) == DataSecEntries.end()) { if (DataSecEntries.find(SecName) == DataSecEntries.end()) {
DataSecEntries[SecName] = std::make_unique<BTFKindDataSec>(Asm, SecName); DataSecEntries[SecName] = std::make_unique<BTFKindDataSec>(Asm, SecName);
} }
DataSecEntries[SecName]->addVar(VarId, Asm->getSymbol(&F), 8); DataSecEntries[SecName]->addVar(VarId, Asm->getSymbol(&F), 8);
} }
} }
▲ Show 20 Lines • Show All 48 Lines • Show Last 20 Lines

llvm/test/CodeGen/BPF/BTF/extern-var-func-weak.ll

Show All 17 Lines
declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed_addr #1 declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed_addr #1
; CHECK: .section .BTF,"",@progbits ; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f ; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1 ; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24 ; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 72 ; CHECK-NEXT: .long 80
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000 ; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020 ; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000 ; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4) ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001 ; CHECK-NEXT: .long 218103809 # 0xd000001
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5 ; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5) ; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)
; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000 ; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2 ; 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: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1 ; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test" # string offset=5 ; CHECK-NEXT: .ascii "test" # string offset=5
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".text" # string offset=10 ; CHECK-NEXT: .ascii ".text" # string offset=10
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 ; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "char" # string offset=55 ; CHECK-NEXT: .ascii "char" # string offset=55
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=60 ; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0 ; 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 #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 #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 } attributes #2 = { nounwind }
!llvm.dbg.cu = !{!0} !llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10, !11} !llvm.module.flags = !{!9, !10, !11}
!llvm.ident = !{!12} !llvm.ident = !{!12}
Show All 19 Lines

llvm/test/CodeGen/BPF/BTF/extern-var-func.ll

Show All 16 Lines
} }
; CHECK: .section .BTF,"",@progbits ; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f ; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1 ; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24 ; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 72 ; CHECK-NEXT: .long 80
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000 ; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020 ; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000 ; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4) ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)
; CHECK-NEXT: .long 218103809 # 0xd000001 ; CHECK-NEXT: .long 218103809 # 0xd000001
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 5 ; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5) ; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)
; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 16777224 # 0x1000008
; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 60 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000 ; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2 ; 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: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1 ; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test" # string offset=5 ; CHECK-NEXT: .ascii "test" # string offset=5
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".text" # string offset=10 ; CHECK-NEXT: .ascii ".text" # string offset=10
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 ; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "char" # string offset=55 ; CHECK-NEXT: .ascii "char" # string offset=55
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global_func" # string offset=60 ; CHECK-NEXT: .ascii "global_func" # string offset=60
; CHECK-NEXT: .byte 0 ; 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 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 #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 #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 } attributes #2 = { nounwind }
!llvm.dbg.cu = !{!0} !llvm.dbg.cu = !{!0}
Show All 21 Lines

llvm/test/CodeGen/BPF/BTF/extern-var-struct-weak.ll

Show All 18 Lines
} }
; CHECK: .section .BTF,"",@progbits ; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f ; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1 ; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24 ; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 73 ; CHECK-NEXT: .long 81
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000 ; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020 ; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000 ; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4) ; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4)
; CHECK-NEXT: .long 134217728 # 0x8000000 ; CHECK-NEXT: .long 134217728 # 0x8000000
; CHECK-NEXT: .long 5 ; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 60 # BTF_KIND_STRUCT(id = 5) ; CHECK-NEXT: .long 60 # BTF_KIND_STRUCT(id = 5)
; CHECK-NEXT: .long 67108865 # 0x4000001 ; CHECK-NEXT: .long 67108865 # 0x4000001
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 63 ; CHECK-NEXT: .long 63
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 # 0x0 ; CHECK-NEXT: .long 0 # 0x0
; CHECK-NEXT: .long 66 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 66 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000 ; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 73 # BTF_KIND_DATASEC(id = 7)
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long global
; CHECK-NEXT: .long 4
; CHECK-NEXT: .byte 0 # string offset=0 ; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1 ; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test" # string offset=5 ; CHECK-NEXT: .ascii "test" # string offset=5
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".text" # string offset=10 ; CHECK-NEXT: .ascii ".text" # string offset=10
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 ; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "__t1" # string offset=55 ; CHECK-NEXT: .ascii "__t1" # string offset=55
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "t1" # string offset=60 ; CHECK-NEXT: .ascii "t1" # string offset=60
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "f1" # string offset=63 ; CHECK-NEXT: .ascii "f1" # string offset=63
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global" # string offset=66 ; CHECK-NEXT: .ascii "global" # string offset=66
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".extern" # string offset=73
; CHECK-NEXT: .byte 0
attributes #0 = { norecurse 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 #0 = { norecurse 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" }
!llvm.dbg.cu = !{!2} !llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!11, !12, !13} !llvm.module.flags = !{!11, !12, !13}
!llvm.ident = !{!14} !llvm.ident = !{!14}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
Show All 24 Lines

llvm/test/CodeGen/BPF/BTF/extern-var-struct.ll

Show All 19 Lines
} }
; CHECK: .section .BTF,"",@progbits ; CHECK: .section .BTF,"",@progbits
; CHECK-NEXT: .short 60319 # 0xeb9f ; CHECK-NEXT: .short 60319 # 0xeb9f
; CHECK-NEXT: .byte 1 ; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .long 24 ; CHECK-NEXT: .long 24
; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 92 ; CHECK-NEXT: .long 116
; CHECK-NEXT: .long 73 ; CHECK-NEXT: .long 81
; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)
; CHECK-NEXT: .long 218103808 # 0xd000000 ; CHECK-NEXT: .long 218103808 # 0xd000000
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)
; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 16777216 # 0x1000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 16777248 # 0x1000020 ; CHECK-NEXT: .long 16777248 # 0x1000020
; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)
; CHECK-NEXT: .long 201326592 # 0xc000000 ; CHECK-NEXT: .long 201326592 # 0xc000000
; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4) ; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4)
; CHECK-NEXT: .long 134217728 # 0x8000000 ; CHECK-NEXT: .long 134217728 # 0x8000000
; CHECK-NEXT: .long 5 ; CHECK-NEXT: .long 5
; CHECK-NEXT: .long 60 # BTF_KIND_STRUCT(id = 5) ; CHECK-NEXT: .long 60 # BTF_KIND_STRUCT(id = 5)
; CHECK-NEXT: .long 67108865 # 0x4000001 ; CHECK-NEXT: .long 67108865 # 0x4000001
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 63 ; CHECK-NEXT: .long 63
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 0 # 0x0 ; CHECK-NEXT: .long 0 # 0x0
; CHECK-NEXT: .long 66 # BTF_KIND_VAR(id = 6) ; CHECK-NEXT: .long 66 # BTF_KIND_VAR(id = 6)
; CHECK-NEXT: .long 234881024 # 0xe000000 ; CHECK-NEXT: .long 234881024 # 0xe000000
; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 2
; CHECK-NEXT: .long 73 # BTF_KIND_DATASEC(id = 7)
; CHECK-NEXT: .long 251658241 # 0xf000001
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long 6
; CHECK-NEXT: .long global
; CHECK-NEXT: .long 4
; CHECK-NEXT: .byte 0 # string offset=0 ; CHECK-NEXT: .byte 0 # string offset=0
; CHECK-NEXT: .ascii "int" # string offset=1 ; CHECK-NEXT: .ascii "int" # string offset=1
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "test" # string offset=5 ; CHECK-NEXT: .ascii "test" # string offset=5
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".text" # string offset=10 ; CHECK-NEXT: .ascii ".text" # string offset=10
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 ; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "__t1" # string offset=55 ; CHECK-NEXT: .ascii "__t1" # string offset=55
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "t1" # string offset=60 ; CHECK-NEXT: .ascii "t1" # string offset=60
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "f1" # string offset=63 ; CHECK-NEXT: .ascii "f1" # string offset=63
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii "global" # string offset=66 ; CHECK-NEXT: .ascii "global" # string offset=66
; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .byte 0
; CHECK-NEXT: .ascii ".extern" # string offset=73
; CHECK-NEXT: .byte 0
attributes #0 = { norecurse 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 #0 = { norecurse 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" }
!llvm.dbg.cu = !{!2} !llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!11, !12, !13} !llvm.module.flags = !{!11, !12, !13}
!llvm.ident = !{!14} !llvm.ident = !{!14}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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