[llvm-branch-commits] [lldb] 7ad54d1 - [lldb][wasm] Parse DWO section names
Pavel Labath via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Wed Jan 13 23:57:54 PST 2021
Author: Philip Pfaffe
Date: 2021-01-14T08:45:02+01:00
New Revision: 7ad54d193871ce69968565ea46372e81c9f1ce62
URL: https://github.com/llvm/llvm-project/commit/7ad54d193871ce69968565ea46372e81c9f1ce62
DIFF: https://github.com/llvm/llvm-project/commit/7ad54d193871ce69968565ea46372e81c9f1ce62.diff
LOG: [lldb][wasm] Parse DWO section names
Mirror ELF section parsing to support DWARF section names for
debug fission.
Reviewed By: labath
Differential Revision: https://reviews.llvm.org/D93621
Added:
Modified:
lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
lldb/test/Shell/ObjectFile/wasm/embedded-debug-sections.yaml
Removed:
################################################################################
diff --git a/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp b/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
index 91150fa02ebc..6c29c2326212 100644
--- a/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
+++ b/lldb/source/Plugins/ObjectFile/wasm/ObjectFileWasm.cpp
@@ -253,6 +253,43 @@ bool ObjectFileWasm::ParseHeader() {
Symtab *ObjectFileWasm::GetSymtab() { return nullptr; }
+static SectionType GetSectionTypeFromName(llvm::StringRef Name) {
+ if (Name.consume_front(".debug_") || Name.consume_front(".zdebug_")) {
+ return llvm::StringSwitch<SectionType>(Name)
+ .Case("abbrev", eSectionTypeDWARFDebugAbbrev)
+ .Case("abbrev.dwo", eSectionTypeDWARFDebugAbbrevDwo)
+ .Case("addr", eSectionTypeDWARFDebugAddr)
+ .Case("aranges", eSectionTypeDWARFDebugAranges)
+ .Case("cu_index", eSectionTypeDWARFDebugCuIndex)
+ .Case("frame", eSectionTypeDWARFDebugFrame)
+ .Case("info", eSectionTypeDWARFDebugInfo)
+ .Case("info.dwo", eSectionTypeDWARFDebugInfoDwo)
+ .Cases("line", "line.dwo", eSectionTypeDWARFDebugLine)
+ .Cases("line_str", "line_str.dwo", eSectionTypeDWARFDebugLineStr)
+ .Case("loc", eSectionTypeDWARFDebugLoc)
+ .Case("loc.dwo", eSectionTypeDWARFDebugLocDwo)
+ .Case("loclists", eSectionTypeDWARFDebugLocLists)
+ .Case("loclists.dwo", eSectionTypeDWARFDebugLocListsDwo)
+ .Case("macinfo", eSectionTypeDWARFDebugMacInfo)
+ .Cases("macro", "macro.dwo", eSectionTypeDWARFDebugMacro)
+ .Case("names", eSectionTypeDWARFDebugNames)
+ .Case("pubnames", eSectionTypeDWARFDebugPubNames)
+ .Case("pubtypes", eSectionTypeDWARFDebugPubTypes)
+ .Case("ranges", eSectionTypeDWARFDebugRanges)
+ .Case("rnglists", eSectionTypeDWARFDebugRngLists)
+ .Case("rnglists.dwo", eSectionTypeDWARFDebugRngListsDwo)
+ .Case("str", eSectionTypeDWARFDebugStr)
+ .Case("str.dwo", eSectionTypeDWARFDebugStrDwo)
+ .Case("str_offsets", eSectionTypeDWARFDebugStrOffsets)
+ .Case("str_offsets.dwo", eSectionTypeDWARFDebugStrOffsetsDwo)
+ .Case("tu_index", eSectionTypeDWARFDebugTuIndex)
+ .Case("types", eSectionTypeDWARFDebugTypes)
+ .Case("types.dwo", eSectionTypeDWARFDebugTypesDwo)
+ .Default(eSectionTypeOther);
+ }
+ return eSectionTypeOther;
+}
+
void ObjectFileWasm::CreateSections(SectionList &unified_section_list) {
if (m_sections_up)
return;
@@ -280,29 +317,7 @@ void ObjectFileWasm::CreateSections(SectionList &unified_section_list) {
// Code section.
vm_addr = 0;
} else {
- section_type =
- llvm::StringSwitch<SectionType>(sect_info.name.GetStringRef())
- .Case(".debug_abbrev", eSectionTypeDWARFDebugAbbrev)
- .Case(".debug_addr", eSectionTypeDWARFDebugAddr)
- .Case(".debug_aranges", eSectionTypeDWARFDebugAranges)
- .Case(".debug_cu_index", eSectionTypeDWARFDebugCuIndex)
- .Case(".debug_frame", eSectionTypeDWARFDebugFrame)
- .Case(".debug_info", eSectionTypeDWARFDebugInfo)
- .Case(".debug_line", eSectionTypeDWARFDebugLine)
- .Case(".debug_line_str", eSectionTypeDWARFDebugLineStr)
- .Case(".debug_loc", eSectionTypeDWARFDebugLoc)
- .Case(".debug_loclists", eSectionTypeDWARFDebugLocLists)
- .Case(".debug_macinfo", eSectionTypeDWARFDebugMacInfo)
- .Case(".debug_macro", eSectionTypeDWARFDebugMacro)
- .Case(".debug_names", eSectionTypeDWARFDebugNames)
- .Case(".debug_pubnames", eSectionTypeDWARFDebugPubNames)
- .Case(".debug_pubtypes", eSectionTypeDWARFDebugPubTypes)
- .Case(".debug_ranges", eSectionTypeDWARFDebugRanges)
- .Case(".debug_rnglists", eSectionTypeDWARFDebugRngLists)
- .Case(".debug_str", eSectionTypeDWARFDebugStr)
- .Case(".debug_str_offsets", eSectionTypeDWARFDebugStrOffsets)
- .Case(".debug_types", eSectionTypeDWARFDebugTypes)
- .Default(eSectionTypeOther);
+ section_type = GetSectionTypeFromName(sect_info.name.GetStringRef());
if (section_type == eSectionTypeOther)
continue;
section_name = sect_info.name;
diff --git a/lldb/test/Shell/ObjectFile/wasm/embedded-debug-sections.yaml b/lldb/test/Shell/ObjectFile/wasm/embedded-debug-sections.yaml
index f3edf18770b1..0773dc001656 100644
--- a/lldb/test/Shell/ObjectFile/wasm/embedded-debug-sections.yaml
+++ b/lldb/test/Shell/ObjectFile/wasm/embedded-debug-sections.yaml
@@ -40,6 +40,73 @@
# CHECK: VM size: 0
# CHECK: File size: 3
+# CHECK: Name: .debug_abbrev.dwo
+# CHECK: Type: dwarf-abbrev-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_info.dwo
+# CHECK: Type: dwarf-info-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_line.dwo
+# CHECK: Type: dwarf-line
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_line_str.dwo
+# CHECK: Type: dwarf-line-str
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_loc.dwo
+# CHECK: Type: dwarf-loc-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_loclists.dwo
+# CHECK: Type: dwarf-loclists-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_macro.dwo
+# CHECK: Type: dwarf-macro
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_rnglists.dwo
+# CHECK: Type: dwarf-rnglists-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_str.dwo
+# CHECK: Type: dwarf-str-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_str_offsets.dwo
+# CHECK: Type: dwarf-str-offsets-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+# CHECK: Name: .debug_types.dwo
+# CHECK: Type: dwarf-types-dwo
+# CHECK: VM address: 0x0
+# CHECK: VM size: 0
+# CHECK: File size: 4
+
+
--- !WASM
FileHeader:
Version: 0x00000001
@@ -64,4 +131,37 @@ Sections:
- Type: CUSTOM
Name: .debug_str
Payload: 636CFF
+ - Type: CUSTOM
+ Name: .debug_abbrev.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_info.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_line.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_line_str.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_loc.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_loclists.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_macro.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_rnglists.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_str.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_str_offsets.dwo
+ Payload: DEADBEEF
+ - Type: CUSTOM
+ Name: .debug_types.dwo
+ Payload: DEADBEEF
...
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