https://sourceware.org/bugzilla/show_bug.cgi?id=26745
Bug ID: 26745
Summary: --debug-prefix-map OLD=NEW option does not correctly
affect DW_AT_name in DW_TAG_compile_unit
Product: binutils
Version: 2.34
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: marko.micovic.93 at gmail dot com
Target Milestone: ---
Given the assembly source file with next simple x86-64 assembly statement
.text
movq %rax, %rbx
.end
gas produces next outputs.
--------------------------------------------------------------------------
as -g --debug-prefix-map ./=./random/path/ -o example.o example.s
objdump -g example.o
Output of the previous two commands among other things is:
Contents of the .debug_info section (loaded from example.o):
Compilation Unit @ offset 0x0:
Length: 0x2a (32-bit)
Version: 2
Abbrev Offset: 0x0
Pointer Size: 8
<0><b>: Abbrev Number: 1 (DW_TAG_compile_unit)
<c> DW_AT_stmt_list : 0x0
<10> DW_AT_low_pc : 0x0
<18> DW_AT_high_pc : 0x3
<20> DW_AT_name : (indirect string, offset: 0x0): example.s
<24> DW_AT_comp_dir : (indirect string, offset: 0xa):
/home/marko/example
<28> DW_AT_producer : (indirect string, offset: 0x1e): GNU AS 2.34
<2c> DW_AT_language : 32769 (MIPS assembler)
--------------------------------------------------------------------------
as -g --debug-prefix-map =./random/path/ -o example.o example.s
objdump -g example.o
Output of the previous two commands among other things is:
Contents of the .debug_info section (loaded from example.o):
Compilation Unit @ offset 0x0:
Length: 0x2a (32-bit)
Version: 2
Abbrev Offset: 0x0
Pointer Size: 8
<0><b>: Abbrev Number: 1 (DW_TAG_compile_unit)
<c> DW_AT_stmt_list : 0x0
<10> DW_AT_low_pc : 0x0
<18> DW_AT_high_pc : 0x3
<20> DW_AT_name : (indirect string, offset: 0x0): example.s
<24> DW_AT_comp_dir : (indirect string, offset: 0xa):
./random/path//home/marko/example
<28> DW_AT_producer : (indirect string, offset: 0x2c): GNU AS 2.34
<2c> DW_AT_language : 32769 (MIPS assembler)
--------------------------------------------------------------------------
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