https://sourceware.org/bugzilla/show_bug.cgi?id=21235
Bug ID: 21235
Summary: The filename and the full path are truncated in
"objdump --dwarf=decodedline --wide"
Product: binutils
Version: 2.29 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: fcamel at gmail dot com
Target Milestone: ---
Created attachment 9886
--> https://sourceware.org/bugzilla/attachment.cgi?id=9886&action=edit
The patch which fixes the reported bug.
When the filename or the full path is too long, "objdump --dwarf=decodedline"
truncates the filename or the full path. In theory, "--wide" should prevent the
truncation. However, that doesn't work.
Btw, "readelf --debug-dump=decodedline" works well with "--wide".
Here is the example of output:
$ binutils/readelf --debug-dump=decodedline --wide ~/dev/tmp/a.out
Decoded dump of debug contents of section .debug_line:
CU: my_very_very_very_very_very_very_very_very_long.c:
File name Line number Starting address
my_very_very_very_very_very_very_very_very_long.c 3
0x4004ed
my_very_very_very_very_very_very_very_very_long.c 4
0x4004f1
my_very_very_very_very_very_very_very_very_long.c 5
0x4004f6
$ binutils/objdump --dwarf=decodedline --wide ~/dev/tmp/a.out
/home/fcamel/dev/tmp/a.out: file format elf64-x86-64
Decoded dump of debug contents of section .debug_line:
CU: my_very_very_very_very_very_very_very_very_long.c:
File name Line number Starting address
ery_very_very_very_very_very_long.c 3 0x4004ed
ery_very_very_very_very_very_long.c 4 0x4004f1
ery_very_very_very_very_very_long.c 5 0x4004f6
The attachment is a patch to fix this issue. After applying the patch:
$ binutils/objdump --dwarf=decodedline --wide ~/dev/tmp/a.out
/home/fcamel/dev/tmp/a.out: file format elf64-x86-64
Decoded dump of debug contents of section .debug_line:
CU: my_very_very_very_very_very_very_very_very_long.c:
File name Line number Starting address
my_very_very_very_very_very_very_very_very_long.c 3
0x4004ed
my_very_very_very_very_very_very_very_very_long.c 4
0x4004f1
my_very_very_very_very_very_very_very_very_long.c 5
0x4004f6
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