[llvm] d33b016 - [XCOFF][llvm-dwarfdump] llvm-dwarfdump support for XCOFF
Chen Zheng via llvm-commits
llvm-commits at lists.llvm.org
Wed Mar 17 18:22:08 PDT 2021
Author: Chen Zheng
Date: 2021-03-17T21:21:51-04:00
New Revision: d33b016ada5634940cccf67e70f918dcd4dfb78e
URL: https://github.com/llvm/llvm-project/commit/d33b016ada5634940cccf67e70f918dcd4dfb78e
DIFF: https://github.com/llvm/llvm-project/commit/d33b016ada5634940cccf67e70f918dcd4dfb78e.diff
LOG: [XCOFF][llvm-dwarfdump] llvm-dwarfdump support for XCOFF
Author: hubert.reinterpretcast, shchenz
Reviewed By: jasonliu, echristo
Differential Revision: https://reviews.llvm.org/D97186
Added:
llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic32.o
llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic64.o
llvm/test/tools/llvm-dwarfdump/XCOFF/basic.test
Modified:
llvm/include/llvm/Object/Binary.h
llvm/include/llvm/Object/XCOFFObjectFile.h
llvm/lib/Object/XCOFFObjectFile.cpp
Removed:
################################################################################
diff --git a/llvm/include/llvm/Object/Binary.h b/llvm/include/llvm/Object/Binary.h
index dd98e1143e25..a8f4437d5dbb 100644
--- a/llvm/include/llvm/Object/Binary.h
+++ b/llvm/include/llvm/Object/Binary.h
@@ -147,7 +147,8 @@ class Binary {
bool isLittleEndian() const {
return !(TypeID == ID_ELF32B || TypeID == ID_ELF64B ||
- TypeID == ID_MachO32B || TypeID == ID_MachO64B);
+ TypeID == ID_MachO32B || TypeID == ID_MachO64B ||
+ TypeID == ID_XCOFF32 || TypeID == ID_XCOFF64);
}
bool isWinRes() const { return TypeID == ID_WinRes; }
diff --git a/llvm/include/llvm/Object/XCOFFObjectFile.h b/llvm/include/llvm/Object/XCOFFObjectFile.h
index 1ac00ed5e2c7..dbc40c4ea880 100644
--- a/llvm/include/llvm/Object/XCOFFObjectFile.h
+++ b/llvm/include/llvm/Object/XCOFFObjectFile.h
@@ -317,6 +317,7 @@ class XCOFFObjectFile : public ObjectFile {
Triple::ArchType getArch() const override;
SubtargetFeatures getFeatures() const override;
Expected<uint64_t> getStartAddress() const override;
+ StringRef mapDebugSectionName(StringRef Name) const override;
bool isRelocatableObject() const override;
// Below here is the non-inherited interface.
diff --git a/llvm/lib/Object/XCOFFObjectFile.cpp b/llvm/lib/Object/XCOFFObjectFile.cpp
index a16a458168d4..74b10faad68f 100644
--- a/llvm/lib/Object/XCOFFObjectFile.cpp
+++ b/llvm/lib/Object/XCOFFObjectFile.cpp
@@ -11,6 +11,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/Object/XCOFFObjectFile.h"
+#include "llvm/ADT/StringSwitch.h"
#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Support/DataExtractor.h"
#include <cstddef>
@@ -296,9 +297,7 @@ uint64_t XCOFFObjectFile::getSectionAlignment(DataRefImpl Sec) const {
}
bool XCOFFObjectFile::isSectionCompressed(DataRefImpl Sec) const {
- bool Result = false;
- llvm_unreachable("Not yet implemented!");
- return Result;
+ return false;
}
bool XCOFFObjectFile::isSectionText(DataRefImpl Sec) const {
@@ -458,6 +457,22 @@ Expected<uint64_t> XCOFFObjectFile::getStartAddress() const {
return 0;
}
+StringRef XCOFFObjectFile::mapDebugSectionName(StringRef Name) const {
+ return StringSwitch<StringRef>(Name)
+ .Case("dwinfo", "debug_info")
+ .Case("dwline", "debug_line")
+ .Case("dwpbnms", "debug_pubnames")
+ .Case("dwpbtyp", "debug_pubtypes")
+ .Case("dwarnge", "debug_aranges")
+ .Case("dwabrev", "debug_abbrev")
+ .Case("dwstr", "debug_str")
+ .Case("dwrnges", "debug_ranges")
+ .Case("dwloc", "debug_loc")
+ .Case("dwframe", "debug_frame")
+ .Case("dwmac", "debug_macinfo")
+ .Default(Name);
+}
+
size_t XCOFFObjectFile::getFileHeaderSize() const {
return is64Bit() ? sizeof(XCOFFFileHeader64) : sizeof(XCOFFFileHeader32);
}
diff --git a/llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic32.o b/llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic32.o
new file mode 100644
index 000000000000..3ab6a54b803d
Binary files /dev/null and b/llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic32.o
diff er
diff --git a/llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic64.o b/llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic64.o
new file mode 100644
index 000000000000..a7d2625a99f2
Binary files /dev/null and b/llvm/test/tools/llvm-dwarfdump/XCOFF/Inputs/basic64.o
diff er
diff --git a/llvm/test/tools/llvm-dwarfdump/XCOFF/basic.test b/llvm/test/tools/llvm-dwarfdump/XCOFF/basic.test
new file mode 100644
index 000000000000..f1ff35a57df3
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/XCOFF/basic.test
@@ -0,0 +1,274 @@
+# RUN: llvm-dwarfdump --all %p/Inputs/basic32.o | FileCheck %s --check-prefix=DWARF32
+# RUN: llvm-dwarfdump --all %p/Inputs/basic64.o | FileCheck %s --check-prefix=DWARF64
+
+## basic32.o Compiled with IBM XL C/C++ for AIX, V16.1.1.0
+## Compiler command: xlc basic.c -c -qdbgfmt=dwarf -g -q32 -o basic32.o
+##
+## basic64.o Compiled with IBM XL C/C++ for AIX, V16.1.1.0
+## Compiler command: xlc basic.c -c -qdbgfmt=dwarf -g -q64 -o basic64.o
+##
+## basic.c:
+## int main(void)
+## {
+## return 0;
+## }
+
+# DWARF32: .debug_abbrev contents:
+# DWARF32-NEXT: Abbrev table for offset: 0x00000000
+# DWARF32-NEXT: [1] DW_TAG_compile_unit DW_CHILDREN_yes
+# DWARF32-NEXT: DW_AT_name DW_FORM_string
+# DWARF32-NEXT: DW_AT_stmt_list DW_FORM_data4
+# DWARF32-NEXT: DW_AT_low_pc DW_FORM_addr
+# DWARF32-NEXT: DW_AT_high_pc DW_FORM_addr
+# DWARF32-NEXT: DW_AT_language DW_FORM_data1
+# DWARF32-NEXT: DW_AT_comp_dir DW_FORM_string
+# DWARF32-NEXT: DW_AT_producer DW_FORM_string
+# DWARF32: [2] DW_TAG_base_type DW_CHILDREN_no
+# DWARF32-NEXT: DW_AT_name DW_FORM_string
+# DWARF32-NEXT: DW_AT_byte_size DW_FORM_data1
+# DWARF32-NEXT: DW_AT_encoding DW_FORM_data1
+# DWARF32: [3] DW_TAG_const_type DW_CHILDREN_no
+# DWARF32-NEXT: DW_AT_type DW_FORM_ref4
+# DWARF32: [4] DW_TAG_array_type DW_CHILDREN_yes
+# DWARF32-NEXT: DW_AT_sibling DW_FORM_ref4
+# DWARF32-NEXT: DW_AT_type DW_FORM_ref4
+# DWARF32: [5] DW_TAG_subrange_type DW_CHILDREN_no
+# DWARF32-NEXT: DW_AT_lower_bound DW_FORM_data1
+# DWARF32-NEXT: DW_AT_upper_bound DW_FORM_data1
+# DWARF32: [6] DW_TAG_subprogram DW_CHILDREN_yes
+# DWARF32-NEXT: DW_AT_name DW_FORM_string
+# DWARF32-NEXT: DW_AT_low_pc DW_FORM_addr
+# DWARF32-NEXT: DW_AT_high_pc DW_FORM_addr
+# DWARF32-NEXT: DW_AT_prototyped DW_FORM_flag
+# DWARF32-NEXT: DW_AT_calling_convention DW_FORM_data1
+# DWARF32-NEXT: DW_AT_decl_file DW_FORM_data1
+# DWARF32-NEXT: DW_AT_decl_line DW_FORM_data1
+# DWARF32-NEXT: DW_AT_external DW_FORM_flag
+# DWARF32-NEXT: DW_AT_frame_base DW_FORM_block1
+# DWARF32-NEXT: DW_AT_type DW_FORM_ref4
+# DWARF32: [7] DW_TAG_variable DW_CHILDREN_no
+# DWARF32-NEXT: DW_AT_location DW_FORM_block1
+# DWARF32-NEXT: DW_AT_name DW_FORM_string
+# DWARF32-NEXT: DW_AT_decl_file DW_FORM_data1
+# DWARF32-NEXT: DW_AT_decl_line DW_FORM_data1
+# DWARF32-NEXT: DW_AT_type DW_FORM_ref4
+# DWARF32: .debug_info contents:
+# DWARF32-NEXT: 0x00000000: Compile Unit: length = 0x00000094, format = DWARF32, version = 0x0003, abbr_offset = 0x0000, addr_size = 0x04 (next unit at 0x00000098)
+# DWARF32: 0x0000000b: DW_TAG_compile_unit
+# DWARF32: DW_AT_name ("basic.c")
+# DWARF32-NEXT: DW_AT_stmt_list (0x00000000)
+# DWARF32-NEXT: DW_AT_low_pc (0x00000000)
+# DWARF32-NEXT: DW_AT_high_pc (0x00000080)
+# DWARF32-NEXT: DW_AT_language (DW_LANG_C89)
+# DWARF32-NEXT: DW_AT_comp_dir ("/")
+# DWARF32-NEXT: DW_AT_producer ("IBM XL C for AIX, Version 16.1.1.0")
+# DWARF32: 0x00000046: DW_TAG_base_type
+# DWARF32-NEXT: DW_AT_name ("char")
+# DWARF32-NEXT: DW_AT_byte_size (0x01)
+# DWARF32-NEXT: DW_AT_encoding (DW_ATE_unsigned_char)
+# DWARF32: 0x0000004e: DW_TAG_base_type
+# DWARF32-NEXT: DW_AT_name ("int")
+# DWARF32-NEXT: DW_AT_byte_size (0x04)
+# DWARF32-NEXT: DW_AT_encoding (DW_ATE_signed)
+# DWARF32: 0x00000055: DW_TAG_const_type
+# DWARF32-NEXT: DW_AT_type (0x00000046 "char")
+# DWARF32: 0x0000005a: DW_TAG_array_type
+# DWARF32-NEXT: DW_AT_sibling (0x00000067)
+# DWARF32-NEXT: DW_AT_type (0x00000055 "const char")
+# DWARF32: 0x00000063: DW_TAG_subrange_type
+# DWARF32-NEXT: DW_AT_lower_bound (0x00)
+# DWARF32-NEXT: DW_AT_upper_bound (0x04)
+# DWARF32: 0x00000066: NULL
+# DWARF32: 0x00000067: DW_TAG_subprogram
+# DWARF32-NEXT: DW_AT_name ("main")
+# DWARF32-NEXT: DW_AT_low_pc (0x00000000)
+# DWARF32-NEXT: DW_AT_high_pc (0x00000024)
+# DWARF32-NEXT: DW_AT_prototyped (0x01)
+# DWARF32-NEXT: DW_AT_calling_convention (DW_CC_program)
+# DWARF32-NEXT: DW_AT_decl_file ("/basic.c")
+# DWARF32-NEXT: DW_AT_decl_line (1)
+# DWARF32-NEXT: DW_AT_external (0x01)
+# DWARF32-NEXT: DW_AT_frame_base (DW_OP_reg1 R1)
+# DWARF32-NEXT: DW_AT_type (0x0000004e "int")
+# DWARF32: 0x00000080: DW_TAG_variable
+# DWARF32-NEXT: DW_AT_location (DW_OP_addr 0x0)
+# DWARF32-NEXT: DW_AT_name ("__func__")
+# DWARF32-NEXT: DW_AT_decl_file ("/basic.c")
+# DWARF32-NEXT: DW_AT_decl_line (0)
+# DWARF32-NEXT: DW_AT_type (0x0000005a "const char[5]")
+# DWARF32: 0x00000096: NULL
+# DWARF32: 0x00000097: NULL
+# DWARF32: .debug_line contents:
+# DWARF32-NEXT: debug_line[0x00000000]
+# DWARF32-NEXT: Line table prologue:
+# DWARF32-NEXT: total_length: 0x00000042
+# DWARF32-NEXT: format: DWARF32
+# DWARF32-NEXT: version: 3
+# DWARF32-NEXT: prologue_length: 0x0000001e
+# DWARF32-NEXT: min_inst_length: 1
+# DWARF32-NEXT: default_is_stmt: 1
+# DWARF32-NEXT: line_base: -100
+# DWARF32-NEXT: line_range: 220
+# DWARF32-NEXT: opcode_base: 13
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_copy] = 0
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_advance_pc] = 1
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_advance_line] = 1
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_set_file] = 1
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_set_column] = 1
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_negate_stmt] = 0
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_set_basic_block] = 0
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_const_add_pc] = 0
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
+# DWARF32-NEXT: standard_opcode_lengths[DW_LNS_set_isa] = 1
+# DWARF32-NEXT: file_names[ 1]:
+# DWARF32-NEXT: name: "basic.c"
+# DWARF32-NEXT: dir_index: 0
+# DWARF32-NEXT: mod_time: 0x00000000
+# DWARF32-NEXT: length: 0x00000000
+# DWARF32: Address Line Column File ISA Discriminator Flags
+# DWARF32-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
+# DWARF32-NEXT: 0x0000000000000000 1 0 1 0 0 is_stmt
+# DWARF32-NEXT: 0x0000000000000004 3 0 1 0 0 is_stmt
+# DWARF32-NEXT: 0x0000000000000008 4 0 1 0 0 is_stmt
+# DWARF32-NEXT: 0x0000000000000080 4 0 1 0 0 is_stmt end_sequence
+# DWARF32: .debug_pubnames contents:
+# DWARF32-NEXT: length = 0x00000017, format = DWARF32, version = 0x0002, unit_offset = 0x00000000, unit_size = 0x00000098
+# DWARF32-NEXT: Offset Name
+# DWARF32-NEXT: 0x00000067 "main"
+# DWARF32: .debug_pubtypes contents:
+# DWARF32-NEXT: length = 0x0000001f, format = DWARF32, version = 0x0002, unit_offset = 0x00000000, unit_size = 0x00000098
+# DWARF32-NEXT: Offset Name
+# DWARF32-NEXT: 0x0000004e "int"
+# DWARF32-NEXT: 0x00000046 "char"
+
+# DWARF64: .debug_abbrev contents:
+# DWARF64-NEXT: Abbrev table for offset: 0x00000000
+# DWARF64-NEXT: [1] DW_TAG_compile_unit DW_CHILDREN_yes
+# DWARF64-NEXT: DW_AT_name DW_FORM_string
+# DWARF64-NEXT: DW_AT_stmt_list DW_FORM_data8
+# DWARF64-NEXT: DW_AT_low_pc DW_FORM_addr
+# DWARF64-NEXT: DW_AT_high_pc DW_FORM_addr
+# DWARF64-NEXT: DW_AT_language DW_FORM_data1
+# DWARF64-NEXT: DW_AT_comp_dir DW_FORM_string
+# DWARF64-NEXT: DW_AT_producer DW_FORM_string
+# DWARF64: [2] DW_TAG_base_type DW_CHILDREN_no
+# DWARF64-NEXT: DW_AT_name DW_FORM_string
+# DWARF64-NEXT: DW_AT_byte_size DW_FORM_data1
+# DWARF64-NEXT: DW_AT_encoding DW_FORM_data1
+# DWARF64: [3] DW_TAG_const_type DW_CHILDREN_no
+# DWARF64-NEXT: DW_AT_type DW_FORM_ref8
+# DWARF64: [4] DW_TAG_array_type DW_CHILDREN_yes
+# DWARF64-NEXT: DW_AT_sibling DW_FORM_ref8
+# DWARF64-NEXT: DW_AT_type DW_FORM_ref8
+# DWARF64: [5] DW_TAG_subrange_type DW_CHILDREN_no
+# DWARF64-NEXT: DW_AT_lower_bound DW_FORM_data1
+# DWARF64-NEXT: DW_AT_upper_bound DW_FORM_data1
+# DWARF64: [6] DW_TAG_subprogram DW_CHILDREN_yes
+# DWARF64-NEXT: DW_AT_name DW_FORM_string
+# DWARF64-NEXT: DW_AT_low_pc DW_FORM_addr
+# DWARF64-NEXT: DW_AT_high_pc DW_FORM_addr
+# DWARF64-NEXT: DW_AT_prototyped DW_FORM_flag
+# DWARF64-NEXT: DW_AT_calling_convention DW_FORM_data1
+# DWARF64-NEXT: DW_AT_decl_file DW_FORM_data1
+# DWARF64-NEXT: DW_AT_decl_line DW_FORM_data1
+# DWARF64-NEXT: DW_AT_external DW_FORM_flag
+# DWARF64-NEXT: DW_AT_frame_base DW_FORM_block1
+# DWARF64-NEXT: DW_AT_type DW_FORM_ref8
+# DWARF64: [7] DW_TAG_variable DW_CHILDREN_no
+# DWARF64-NEXT: DW_AT_location DW_FORM_block1
+# DWARF64-NEXT: DW_AT_name DW_FORM_string
+# DWARF64-NEXT: DW_AT_decl_file DW_FORM_data1
+# DWARF64-NEXT: DW_AT_decl_line DW_FORM_data1
+# DWARF64-NEXT: DW_AT_type DW_FORM_ref8
+# DWARF64: .debug_info contents:
+# DWARF64-NEXT: 0x00000000: Compile Unit: length = 0x00000000000000c4, format = DWARF64, version = 0x0003, abbr_offset = 0x0000, addr_size = 0x08 (next unit at 0x000000d0)
+# DWARF64: 0x00000017: DW_TAG_compile_unit
+# DWARF64-NEXT: DW_AT_name ("basic.c")
+# DWARF64-NEXT: DW_AT_stmt_list (0x0000000000000000)
+# DWARF64-NEXT: DW_AT_low_pc (0x0000000000000000)
+# DWARF64-NEXT: DW_AT_high_pc (0x0000000000000080)
+# DWARF64-NEXT: DW_AT_language (DW_LANG_C89)
+# DWARF64-NEXT: DW_AT_comp_dir ("/")
+# DWARF64-NEXT: DW_AT_producer ("IBM XL C for AIX, Version 16.1.1.0")
+# DWARF64: 0x0000005e: DW_TAG_base_type
+# DWARF64-NEXT: DW_AT_name ("char")
+# DWARF64-NEXT: DW_AT_byte_size (0x01)
+# DWARF64-NEXT: DW_AT_encoding (DW_ATE_unsigned_char)
+# DWARF64: 0x00000066: DW_TAG_base_type
+# DWARF64-NEXT: DW_AT_name ("int")
+# DWARF64-NEXT: DW_AT_byte_size (0x04)
+# DWARF64-NEXT: DW_AT_encoding (DW_ATE_signed)
+# DWARF64: 0x0000006d: DW_TAG_const_type
+# DWARF64-NEXT: DW_AT_type (0x0000005e "char")
+# DWARF64: 0x00000076: DW_TAG_array_type
+# DWARF64-NEXT: DW_AT_sibling (0x0000008b)
+# DWARF64-NEXT: DW_AT_type (0x0000006d "const char")
+# DWARF64: 0x00000087: DW_TAG_subrange_type
+# DWARF64-NEXT: DW_AT_lower_bound (0x00)
+# DWARF64-NEXT: DW_AT_upper_bound (0x04)
+# DWARF64: 0x0000008a: NULL
+# DWARF64: 0x0000008b: DW_TAG_subprogram
+# DWARF64-NEXT: DW_AT_name ("main")
+# DWARF64-NEXT: DW_AT_low_pc (0x0000000000000000)
+# DWARF64-NEXT: DW_AT_high_pc (0x0000000000000024)
+# DWARF64-NEXT: DW_AT_prototyped (0x01)
+# DWARF64-NEXT: DW_AT_calling_convention (DW_CC_program)
+# DWARF64-NEXT: DW_AT_decl_file ("/basic.c")
+# DWARF64-NEXT: DW_AT_decl_line (1)
+# DWARF64-NEXT: DW_AT_external (0x01)
+# DWARF64-NEXT: DW_AT_frame_base (DW_OP_reg1 X1)
+# DWARF64-NEXT: DW_AT_type (0x00000066 "int")
+# DWARF64: 0x000000b0: DW_TAG_variable
+# DWARF64-NEXT: DW_AT_location (DW_OP_addr 0x0)
+# DWARF64-NEXT: DW_AT_name ("__func__")
+# DWARF64-NEXT: DW_AT_decl_file ("/basic.c")
+# DWARF64-NEXT: DW_AT_decl_line (0)
+# DWARF64-NEXT: DW_AT_type (0x00000076 "const char[5]")
+# DWARF64: 0x000000ce: NULL
+# DWARF64: 0x000000cf: NULL
+# DWARF64: .debug_line contents:
+# DWARF64-NEXT: debug_line[0x00000000]
+# DWARF64-NEXT: Line table prologue:
+# DWARF64-NEXT: total_length: 0x000000000000004a
+# DWARF64-NEXT: format: DWARF64
+# DWARF64-NEXT: version: 3
+# DWARF64-NEXT: prologue_length: 0x000000000000001e
+# DWARF64-NEXT: min_inst_length: 1
+# DWARF64-NEXT: default_is_stmt: 1
+# DWARF64-NEXT: line_base: -100
+# DWARF64-NEXT: line_range: 220
+# DWARF64-NEXT: opcode_base: 13
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_copy] = 0
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_advance_pc] = 1
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_advance_line] = 1
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_set_file] = 1
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_set_column] = 1
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_negate_stmt] = 0
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_set_basic_block] = 0
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_const_add_pc] = 0
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
+# DWARF64-NEXT: standard_opcode_lengths[DW_LNS_set_isa] = 1
+# DWARF64-NEXT: file_names[ 1]:
+# DWARF64-NEXT: name: "basic.c"
+# DWARF64-NEXT: dir_index: 0
+# DWARF64-NEXT: mod_time: 0x00000000
+# DWARF64-NEXT: length: 0x00000000
+# DWARF64: Address Line Column File ISA Discriminator Flags
+# DWARF64-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
+# DWARF64-NEXT: 0x0000000000000000 1 0 1 0 0 is_stmt
+# DWARF64-NEXT: 0x0000000000000004 3 0 1 0 0 is_stmt
+# DWARF64-NEXT: 0x0000000000000008 4 0 1 0 0 is_stmt
+# DWARF64-NEXT: 0x0000000000000080 4 0 1 0 0 is_stmt end_sequence
+# DWARF64: .debug_pubnames contents:
+# DWARF64-NEXT: length = 0x0000000000000027, format = DWARF64, version = 0x0002, unit_offset = 0x0000000000000000, unit_size = 0x00000000000000d0
+# DWARF64-NEXT: Offset Name
+# DWARF64-NEXT: 0x000000000000008b "main"
+# DWARF64: .debug_pubtypes contents:
+# DWARF64-NEXT: length = 0x0000000000000033, format = DWARF64, version = 0x0002, unit_offset = 0x0000000000000000, unit_size = 0x00000000000000d0
+# DWARF64-NEXT: Offset Name
+# DWARF64-NEXT: 0x0000000000000066 "int"
+# DWARF64-NEXT: 0x000000000000005e "char"
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