From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: dwz@sourceware.org
Subject: [Bug default/27603] New: [dwz, clang-11] FAIL: testsuite/dwz.tests/pr24747.sh
Date: Thu, 18 Mar 2021 11:23:26 +0000 [thread overview]
Message-ID: <bug-27603-11298@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=27603
Bug ID: 27603
Summary: [dwz, clang-11] FAIL: testsuite/dwz.tests/pr24747.sh
Product: dwz
Version: unspecified
Status: NEW
Severity: minor
Priority: P2
Component: default
Assignee: nobody at sourceware dot org
Reporter: vries at gcc dot gnu.org
CC: dwz at sourceware dot org
Target Milestone: ---
With clang-11, I run into:
...
Running testsuite/dwz.tests/dwz-tests.exp ...
+ exec=start-gold
+ cp start-gold 1
+ dwz 1
+ smaller-than.sh 1 start-gold
FAIL: testsuite/dwz.tests/pr24747.sh
...
The files are the same size:
...
$ ls -l start-gold tmp.pr24747.sh/1
-rwxr-xr-x 1 vries users 2024 Mar 18 11:58 start-gold
-rwxr-xr-x 1 vries users 2024 Mar 18 11:58 tmp.pr24747.sh/1
...
However:
...
$ readelf -S -W start-gold tmp.pr24747.sh/1
File: start-gold
Section Headers:
[Nr] Name Type Address Off Size ES Flg
Lk Inf Al
[ 0] NULL 0000000000000000 000000 000000 00
0 0 0
[ 1] .note.gnu.build-id NOTE 0000000000400120 000120 000024 00 A
0 0 4
[ 2] .text PROGBITS 0000000000400150 000150 000006 00 AX
0 0 16
[ 3] .eh_frame X86_64_UNWIND 0000000000400158 000158 000038 00 A
0 0 8
[ 4] .eh_frame_hdr X86_64_UNWIND 0000000000400190 000190 000014 00 A
0 0 4
[ 5] .debug_abbrev PROGBITS 0000000000000000 0001a4 000029 00
0 0 1
[ 6] .debug_info PROGBITS 0000000000000000 0001cd 000040 00
0 0 1
[ 7] .debug_str PROGBITS 0000000000000000 00020d 000066 01 MS
0 0 1
[ 8] .comment PROGBITS 0000000000000000 000273 000016 01 MS
0 0 1
[ 9] .debug_line PROGBITS 0000000000000000 000289 00006a 00
0 0 1
[10] .note.gnu.gold-version NOTE 0000000000000000 0002f4 00001c 00
0 0 4
[11] .symtab SYMTAB 0000000000000000 000310 000090 18
12 2 8
[12] .strtab STRTAB 0000000000000000 0003a0 000028 00
0 0 1
[13] .shstrtab STRTAB 0000000000000000 0003c8 00009d 00
0 0 1
File: tmp.pr24747.sh/1
Section Headers:
[Nr] Name Type Address Off Size ES Flg
Lk Inf Al
[ 0] NULL 0000000000000000 000000 000000 00
0 0 0
[ 1] .note.gnu.build-id NOTE 0000000000400120 000120 000024 00 A
0 0 4
[ 2] .text PROGBITS 0000000000400150 000150 000006 00 AX
0 0 16
[ 3] .eh_frame X86_64_UNWIND 0000000000400158 000158 000038 00 A
0 0 8
[ 4] .eh_frame_hdr X86_64_UNWIND 0000000000400190 000190 000014 00 A
0 0 4
[ 5] .debug_abbrev PROGBITS 0000000000000000 0001a4 000029 00
0 0 1
[ 6] .debug_info PROGBITS 0000000000000000 0001cd 00003a 00
0 0 1
[ 7] .debug_str PROGBITS 0000000000000000 000207 000066 01 MS
0 0 1
[ 8] .comment PROGBITS 0000000000000000 00026d 000016 01 MS
0 0 1
[ 9] .debug_line PROGBITS 0000000000000000 000283 00006a 00
0 0 1
[10] .note.gnu.gold-version NOTE 0000000000000000 0002f0 00001c 00
0 0 4
[11] .symtab SYMTAB 0000000000000000 000310 000090 18
12 2 8
[12] .strtab STRTAB 0000000000000000 0003a0 000028 00
0 0 1
[13] .shstrtab STRTAB 0000000000000000 0003c8 00009d 00
0 0 1
...
The sizes of the sections are either the same, or smaller (.debug_info 0x40 ->
0x3a, reduction of 6 bytes).
However, AFAIU due to the alignment requirement of 8 bytes of the .symtab
section, that doesn't actually result in a smaller file.
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next reply other threads:[~2021-03-18 11:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-18 11:23 vries at gcc dot gnu.org [this message]
2021-03-22 5:14 ` [Bug default/27603] " vries at gcc dot gnu.org
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