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[LLDB][NativePDB] Implement AddSymbols #154121

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Merged
merged 5 commits into from
Sep 11, 2025
Merged

[LLDB][NativePDB] Implement AddSymbols #154121

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10b3535
[LLDB][NativePDB] Implement `AddSymbols`
Nerixyz Aug 18, 2025
362b562
fix: tests
Nerixyz Aug 18, 2025
c107db7
fix: set `debug`
Nerixyz Sep 1, 2025
1d7998f
fix: remove unused set
Nerixyz Sep 1, 2025
7559395
test: Run windows-unaligned unwind test with both plugins
Nerixyz Sep 1, 2025
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39 changes: 38 additions & 1 deletion lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1054,7 +1054,44 @@ lldb::LanguageType SymbolFileNativePDB::ParseLanguage(CompileUnit &comp_unit) {
return TranslateLanguage(item->m_compile_opts->getLanguage());
}

void SymbolFileNativePDB::AddSymbols(Symtab &symtab) {}
void SymbolFileNativePDB::AddSymbols(Symtab &symtab) {
auto *section_list = m_objfile_sp->GetSectionList();
if (!section_list)
return;

for (auto pid : m_index->publics().getPublicsTable()) {
PdbGlobalSymId global{pid, true};
CVSymbol sym = m_index->ReadSymbolRecord(global);
auto kind = sym.kind();
if (kind != S_PUB32)
continue;
PublicSym32 pub =
llvm::cantFail(SymbolDeserializer::deserializeAs<PublicSym32>(sym));

auto section_sp = section_list->FindSectionByID(pub.Segment);
if (!section_sp)
continue;

lldb::SymbolType type = eSymbolTypeData;
if ((pub.Flags & PublicSymFlags::Function) != PublicSymFlags::None ||
(pub.Flags & PublicSymFlags::Code) != PublicSymFlags::None)
type = eSymbolTypeCode;

symtab.AddSymbol(Symbol(/*symID=*/pid,
/*name=*/pub.Name,
/*type=*/type,
/*external=*/true,
/*is_debug=*/true,
/*is_trampoline=*/false,
/*is_artificial=*/false,
/*section_sp=*/section_sp,
/*value=*/pub.Offset,
/*size=*/0,
/*size_is_valid=*/false,
/*contains_linker_annotations=*/false,
/*flags=*/0));
}
}

size_t SymbolFileNativePDB::ParseFunctions(CompileUnit &comp_unit) {
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
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4 changes: 1 addition & 3 deletions lldb/test/Shell/SymbolFile/NativePDB/disassembly.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,7 @@ int main(int argc, char **argv) {


// CHECK: (lldb) disassemble --flavor=intel -m -n main
// CHECK: 12 int foo() { return 42; }
// CHECK-NEXT: 13
// CHECK-NEXT: ** 14 int main(int argc, char **argv) {
// CHECK: ** 14 int main(int argc, char **argv) {
// CHECK: disassembly.cpp.tmp.exe`main:
// CHECK-NEXT: disassembly.cpp.tmp.exe[{{.*}}] <+0>: sub rsp, 0x38
// CHECK-NEXT: disassembly.cpp.tmp.exe[{{.*}}] <+4>: mov dword ptr [rsp + 0x34], 0x0
Expand Down
7 changes: 7 additions & 0 deletions lldb/test/Shell/SymbolFile/NativePDB/inline_sites.test
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@
# CHECK: Function: id = {{.*}}, name = "main", range = [0x0000000140001000-0x0000000140001046)
# CHECK: Blocks: id = {{.*}}, range = [0x140001000-0x140001046)
# CHECK: LineEntry: [0x0000000140001000-0x0000000140001004): /tmp/a.cpp:2
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "argc", type = "int", valid ranges = <block>, location = [0x0000000140001000, 0x000000014000102d) -> DW_OP_reg26 XMM9
# CHECK-NEXT: Variable: id = {{.*}}, name = "argv", type = "char **", valid ranges = <block>, location = [0x0000000140001000, 0x0000000140001045) -> DW_OP_reg3 RBX

Expand All @@ -71,6 +72,7 @@
# CHECK: Blocks: id = {{.*}}, range = [0x140001000-0x140001046)
# CHECK-NEXT: id = {{.*}}, ranges = [0x140001004-0x140001039)[0x14000103f-0x140001046), name = "Namespace1::foo", decl = a.h:4
# CHECK: LineEntry: [0x0000000140001004-0x000000014000100c): /tmp/a.h:5
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "x", type = "int", valid ranges = <block>, location = <empty>, decl =
# CHECK-NEXT: Variable: id = {{.*}}, name = "foo_local", type = "int", valid ranges = <block>, location = [0x0000000140001004, 0x0000000140001039) -> DW_OP_breg7 RSP+44
# CHECK-NEXT: Variable: id = {{.*}}, name = "argc", type = "int", valid ranges = <block>, location = [0x0000000140001000, 0x000000014000102d) -> DW_OP_reg26 XMM9
Expand All @@ -84,6 +86,7 @@
# CHECK: Blocks: id = {{.*}}, range = [0x140001000-0x140001046)
# CHECK-NEXT: id = {{.*}}, ranges = [0x140001004-0x140001039)[0x14000103f-0x140001046), name = "Namespace1::foo", decl = a.h:4
# CHECK: LineEntry: [0x0000000140001010-0x0000000140001018): /tmp/a.h:7
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "x", type = "int", valid ranges = <block>, location = <empty>, decl =
# CHECK-NEXT: Variable: id = {{.*}}, name = "foo_local", type = "int", valid ranges = <block>, location = [0x0000000140001004, 0x0000000140001039) -> DW_OP_breg7 RSP+44
# CHECK-NEXT: Variable: id = {{.*}}, name = "argc", type = "int", valid ranges = <block>, location = [0x0000000140001000, 0x000000014000102d) -> DW_OP_reg26 XMM9
Expand All @@ -99,6 +102,7 @@
# CHECK-NEXT: id = {{.*}}, ranges = [0x140001004-0x140001039)[0x14000103f-0x140001046), name = "Namespace1::foo", decl = a.h:4
# CHECK-NEXT: id = {{.*}}, range = [0x14000101c-0x140001039), name = "Class1::bar", decl = b.h:4
# CHECK: LineEntry: [0x000000014000101c-0x0000000140001022): /tmp/b.h:5
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "x", type = "int", valid ranges = <block>, location = [0x000000014000101c, 0x000000014000101e) -> DW_OP_reg24 XMM7
# CHECK-NEXT: Variable: id = {{.*}}, name = "bar_local", type = "int", valid ranges = <block>, location = [0x000000014000101c, 0x0000000140001039) -> DW_OP_breg7 RSP+52
# CHECK-NEXT: Variable: id = {{.*}}, name = "x", type = "int", valid ranges = <block>, location = <empty>, decl =
Expand All @@ -118,6 +122,7 @@
# CHECK-NEXT: id = {{.*}}, range = [0x14000101c-0x140001039), name = "Class1::bar", decl = b.h:4
# CHECK-NEXT: id = {{.*}}, range = [0x14000102a-0x140001039), name = "Namespace2::Class2::func", decl = c.h:4
# CHECK: LineEntry: [0x000000014000102a-0x0000000140001031): /tmp/c.h:5
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "x", type = "int", valid ranges = <block>, location = [0x000000014000102a, 0x0000000140001039) -> DW_OP_reg24 XMM7
# CHECK-NEXT: Variable: id = {{.*}}, name = "func_local", type = "int", valid ranges = <block>, location = [0x000000014000102a, 0x0000000140001039) -> DW_OP_breg7 RSP+48
# CHECK-NEXT: Variable: id = {{.*}}, name = "bar_local", type = "int", valid ranges = <block>, location = [0x000000014000101c, 0x0000000140001039) -> DW_OP_breg7 RSP+52
Expand All @@ -132,6 +137,7 @@
# CHECK: Function: id = {{.*}}, name = "main", range = [0x0000000140001000-0x0000000140001046)
# CHECK: Blocks: id = {{.*}}, range = [0x140001000-0x140001046)
# CHECK: LineEntry: [0x0000000140001039-0x000000014000103d): /tmp/a.cpp:3
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "argv", type = "char **", valid ranges = <block>, location = [0x0000000140001000, 0x0000000140001045) -> DW_OP_reg3 RBX
# CHECK-NEXT: Variable: id = {{.*}}, name = "main_local", type = "int", valid ranges = <block>, location = [0x0000000140001004, 0x0000000140001046) -> DW_OP_breg7 RSP+48

Expand All @@ -142,6 +148,7 @@
# CHECK: Blocks: id = {{.*}}, range = [0x140001000-0x140001046)
# CHECK-NEXT: id = {{.*}}, ranges = [0x140001004-0x140001039)[0x14000103f-0x140001046), name = "Namespace1::foo", decl = a.h:4
# CHECK: LineEntry: [0x0000000140001044-0x0000000140001046): /tmp/a.h:8
# CHECK-NEXT: Symbol: id = {{.*}}, range = [0x0000000140001000-0x0000000140001046), name="main"
# CHECK-NEXT: Variable: id = {{.*}}, name = "x", type = "int", valid ranges = <block>, location = <empty>, decl =
# CHECK-NEXT: Variable: id = {{.*}}, name = "foo_local", type = "int", valid ranges = <block>, location = [0x0000000140001044, 0x0000000140001046) -> DW_OP_breg7 RSP+44
# CHECK-NEXT: Variable: id = {{.*}}, name = "argc", type = "int", valid ranges = <block>, location = [0x0000000140001044, 0x0000000140001045) -> DW_OP_reg26 XMM9
Expand Down
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