objdump does not use the .gnu_debuglink information to
find debug information for a stripped executable. This
means objdump -l does not produce line numbers when
disassembling even though the information is available.
$ gcc -g -o forkfork forkfork.c
$ objcopy --only-keep-debug forkfork forkfork.dbg
$ strip forkfork
$ objcopy --add-gnu-debuglink=forkfork.dbg forkfork
$ objdump -h forkfork
forkfork: file format elf32-i386
Sections:
Idx Name Size VMA LMA File off Algn
<SNIP>
24 .gnu_debuglink 00000014 00000000 00000000 000006f0 2**0
CONTENTS, READONLY
$ objdump -l forkfork
[no line numbers in disassembled main()]
$ objdump --version
GNU objdump 2.17.50.0.6-2.fc6 20061020
--
Summary: objdump ignores .gnu_debuglink
Product: binutils
Version: 2.17
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: cebbert at redhat dot com
CC: bug-binutils at gnu dot org
GCC host triplet: i386-redhat-linux
http://sourceware.org/bugzilla/show_bug.cgi?id=4030
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