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[DwarfDump] -debug-line=offset applies to .dwo too.

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llvm-svn: 318856
This commit is contained in:
Paul Robinson 2017-11-22 18:23:55 +00:00
parent b39db4737a
commit 0c2cb57a67
5 changed files with 100 additions and 17 deletions
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4
lib/DebugInfo/DWARF/DWARFContext.cpp
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@ -379,9 +379,11 @@ void DWARFContext::dump(
if (It != LineToUnit.end())
U = It->second;
DWARFDebugLine::LineTable LineTable;
unsigned OldOffset = Offset;
if (!LineTable.Prologue.parse(LineData, &Offset, U))
break;
LineTable.dump(OS);
if (!DumpOffset || OldOffset == *DumpOffset)
LineTable.dump(OS);
}
}

10
test/DebugInfo/Inputs/dwarfdump-line-dwo.cc
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@ -1,10 +0,0 @@
struct foo {
};
foo f;
// Built with GCC
// $ mkdir -p /tmp/dbginfo
// $ cp dwarfdump-line-dwo.cc /tmp/dbginfo
// $ cd /tmp/dbginfo
// $ g++ -c -fdebug-types-section dwarfdump-line-dwo.cc -o <output>

BIN
test/DebugInfo/Inputs/dwarfdump-line-dwo.elf-x86-64
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Binary file not shown.

97
test/DebugInfo/X86/dwarfdump-line-dwo.s Normal file
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@ -0,0 +1,97 @@
# Dump the complete .debug_line.dwo, then just one part.
#
# RUN: llvm-mc -triple x86_64-unknown-unknown -filetype=obj %s -o %t.o
# RUN: llvm-dwarfdump -debug-line %t.o | FileCheck %s --check-prefixes=PART1,PART2
# RUN: llvm-dwarfdump -debug-line=0x32 %t.o | FileCheck %s --check-prefix=PART2
.section .debug_line.dwo,"",@progbits
LH_1_start:
.long LH_1_end-LH_1_version # Length of Unit
LH_1_version:
.short 4 # DWARF version number
.long LH_1_header_end-LH_1_params # Length of Prologue
LH_1_params:
.byte 1 # Minimum Instruction Length
.byte 1 # Maximum Operations per Instruction
.byte 1 # Default is_stmt
.byte -5 # Line Base
.byte 14 # Line Range
.byte 13 # Opcode Base
.byte 0 # Standard Opcode Lengths
.byte 1
.byte 1
.byte 1
.byte 1
.byte 0
.byte 0
.byte 0
.byte 1
.byte 0
.byte 0
.byte 1
# Directory table
.asciz "Directory1"
.byte 0
# File table
.asciz "File1" # File name
.byte 1 # Directory index
.byte 0x41 # Timestamp
.byte 0x42 # File Size
.byte 0 # End of list
LH_1_header_end:
# Line number program, which is empty.
LH_1_end:
# PART1: Line table prologue:
# PART1-NEXT: total_length: 0x0000002e
# PART1-NEXT: version: 4
# PART1-NEXT: prologue_length: 0x00000028
# PART1: include_directories[ 1] = 'Directory1'
# PART1: file_names[ 1] {{.*}} File1
# Second line table.
LH_2_start:
.long LH_2_end-LH_2_version # Length of Unit
LH_2_version:
.short 4 # DWARF version number
.long LH_2_header_end-LH_2_params # Length of Prologue
LH_2_params:
.byte 1 # Minimum Instruction Length
.byte 1 # Maximum Operations per Instruction
.byte 1 # Default is_stmt
.byte -5 # Line Base
.byte 14 # Line Range
.byte 13 # Opcode Base
.byte 0 # Standard Opcode Lengths
.byte 1
.byte 1
.byte 1
.byte 1
.byte 0
.byte 0
.byte 0
.byte 1
.byte 0
.byte 0
.byte 1
# Directory table
.asciz "Dir2"
.byte 0
# File table
.asciz "File2" # File name
.byte 1 # Directory index
.byte 0x14 # Timestamp
.byte 0x24 # File Size
.byte 0 # End of list
LH_2_header_end:
# Line number program, which is empty.
LH_2_end:
# PART2: Line table prologue:
# PART2-NEXT: total_length: 0x00000028
# PART2-NEXT: version: 4
# PART2-NEXT: prologue_length: 0x00000022
# PART2-NOT: prologue:
# PART2: include_directories[ 1] = 'Dir2'
# PART2: file_names[ 1] {{.*}} File2
# PART2-NOT: prologue:

6
test/DebugInfo/dwarfdump-line-dwo.test
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@ -1,6 +0,0 @@
RUN: llvm-dwarfdump -v %p/Inputs/dwarfdump-line-dwo.elf-x86-64 | FileCheck %s
CHECK: .debug_line.dwo contents:
CHECK: version: 4
CHECK: max_ops_per_inst: 1
CHECK: file_names[ 1]{{.*}}dwarfdump-line-dwo.cc