bugAVR Downloader/UploaDEr - Bugs: bug #48084, Avoid compiled-in timestamp for...

 
 

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bug #48084: Avoid compiled-in timestamp for reproducible release builds

Submitted by:  None
Submitted on:  Thu 02 Jun 2016 02:05:08 AM UTC  
 
Category: NoneSeverity: 3 - Normal
Priority: 5 - NormalItem Group: None
Status: FixedPrivacy: Public
Assigned to: Joerg Wunsch <joerg_wunsch>Originator Name: Ed Maste
Originator Email: -unavailable-Open/Closed: Closed
Release: 6.3Programmer hardware: 
Device type: 

Mon 13 Nov 2017 04:48:45 PM UTC, comment #3:

I removed the "compiled on/at" string now.

Joerg Wunsch <joerg_wunsch>
Project AdministratorIn charge of this item.
Mon 13 Nov 2017 04:16:48 PM UTC, comment #2:

SOURCE_DATE_EPOCH provides a suitable workaround, but it means that we present incorrect information to the user. IMO it's better to omit the "Compiled on" string than to emit a hard-coded one.

Ed Maste <emaste>
Mon 13 Nov 2017 03:52:15 PM UTC, comment #1:

OpenWrt/LEDE has the same problem [1]. avrdude is not reproducible.
How about using the SOURCE_DATE_EPOCH environment [2] ? If it's set, use the time from it, if not use `date`.

[1] https://tests.reproducible-builds.org/lede/dbd/packages/mips_24kc/packages/avrdude_6.3-1_mips_24kc.ipk.html

[2] https://reproducible-builds.org/specs/source-date-epoch/

Alexander Couzens <lynxis>
Thu 02 Jun 2016 02:05:08 AM UTC, original submission:

While investigating avrdude for reproducible builds in FreeBSD I found that the only nonreproducibility is the "Compiled on" string:

pig1# diffoscope 3be62d02dc27d0db269d88967fa790ffb64c25a6-build1/All/$P 3be62d02dc27d0db269d88967fa790ffb64c25a6-build2/All/$P
--- 3be62d02dc27d0db269d88967fa790ffb64c25a6-build1/All/avrdude-6.1_1.txz
+++ 3be62d02dc27d0db269d88967fa790ffb64c25a6-build2/All/avrdude-6.1_1.txz
├── avrdude-6.1_1.txz-content
│ ├── +MANIFEST
[...]
│ ├── /usr/local/bin/avrdude
│ │ ├── readelf --wide --hex-dump=.rodata {}
│ │ │ @@ -65,16 +65,16 @@
│ │ │ 0x0044ba90 696c6564 206f6e20 25732061 74202573 iled on %s at %s
│ │ │ 0x0044baa0 0a257343 6f707972 69676874 20286329 .%sCopyright (c)
│ │ │ 0x0044bab0 20323030 302d3230 30352042 7269616e 2000-2005 Brian
│ │ │ 0x0044bac0 20446561 6e2c2068 7474703a 2f2f7777 Dean, http://ww
│ │ │ 0x0044bad0 772e6264 6d696372 6f2e636f 6d2f0a25 w.bdmicro.com/.%
│ │ │ 0x0044bae0 73436f70 79726967 68742028 63292032 sCopyright (c) 2
│ │ │ 0x0044baf0 3030372d 32303134 204a6f65 72672057 007-2014 Joerg W
│ │ │ - 0x0044bb00 756e7363 680a0a00 4d617920 32332032 unsch...May 23 2
│ │ │ - 0x0044bb10 30313600 30343a35 393a3430 00257353 016.04:59:40.%sS
│ │ │ + 0x0044bb00 756e7363 680a0a00 4d617920 32362032 unsch...May 26 2
│ │ │ + 0x0044bb10 30313600 32313a34 313a3139 00257353 016.21:41:19.%sS
│ │ │ 0x0044bb20 79737465 6d207769 64652063 6f6e6669 ystem wide confi
│ │ │ 0x0044bb30 67757261 74696f6e 2066696c 65206973 guration file is
│ │ │ 0x0044bb40 20222573 220a0025 733a2065 72726f72 "%s"..%s: error
│ │ │ 0x0044bb50 20726561 64696e67 20737973 74656d20 reading system
│ │ │ 0x0044bb60 77696465 20636f6e 66696775 72617469 wide configurati
│ │ │ 0x0044bb70 6f6e2066 696c6520 22257322 0a002573 on file "%s"..%s
│ │ │ 0x0044bb80 55736572 20636f6e 66696775 72617469 User configurati
│ │ ╵
│ ╵

Debian has a patch to just remove the timestamps:
http://sources.debian.net/src/avrdude/6.3-1/debian/patches/no-cpp-timestamps.patch/

Discussed with Joerg which resulted in this suggestion:

>
> Well, that timestamp is somehow meaningful for people who
> are actively participating in the development process, but
> I agree it's pointless for a released version.
>
> I'd like to come up with some kind of autoconf magic that
> drops the timestamp for releases, while retaining it for
> non-released software.


Filing here as an enhancement request.
Joerg suggested instead having some sort of autoconf switch to set a "release build" mode

Anonymous

 

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Carbon-Copy List
  • -unavailable- added by joerg_wunsch (Posted a comment)
  • -unavailable- added by emaste (Posted a comment)
  • -unavailable- added by lynxis (Posted a comment)
  • -unavailable- added by None (Submitted the item)
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    Follow 4 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 13 Nov 2017 04:48:45 PM UTCjoerg_wunschStatusNone=>Fixed
      Assigned toNone=>joerg_wunsch
      Open/ClosedOpen=>Closed
      ReleaseNone=>6.3

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