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Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42

Started byPaul Gevers <elbrus@debian.org>
First post2025-02-06 21:10 +0100
Last post2025-02-08 21:30 +0100
Articles 4 — 2 participants

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  Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42 Paul Gevers <elbrus@debian.org> - 2025-02-06 21:10 +0100
    Bug#1095306: [Pkg-pascal-devel] Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42 Abou Al Montacir <abou.almontacir@sfr.fr> - 2025-02-06 21:40 +0100
      Bug#1095306: [Pkg-pascal-devel] Bug#1095306: Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42 Abou Al Montacir <abou.almontacir@sfr.fr> - 2025-02-07 16:10 +0100
        Bug#1095306: [Pkg-pascal-devel] Bug#1095306: Bug#1095306: Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42 Abou Al Montacir <abou.almontacir@sfr.fr> - 2025-02-08 21:30 +0100

#1232035 — Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42

FromPaul Gevers <elbrus@debian.org>
Date2025-02-06 21:10 +0100
SubjectBug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42
Message-ID<Kdgmd-eVbw-7@gated-at.bofh.it>

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Source: fpc
Version: 3.2.2+dfsg-42
Severity: normal

Hi,

The migration excuses for fpc currently marks fpc as not reproducible, 
while it used to be reproducible until 3.2.2+dfsg-40. This can be seen 
on the web pages of the reproducibility project [2]. I *think* what I'm 
seeing is a crash recorded during the generation of the man pages.

line 12 and 14 of the following diff:
./usr/share/man/man1/mka64ins-3.2.2.1.gz
498 B
mka64ins-3.2.2.1
Offset 5, 17 lines modified	Offset 5, 17 lines modified
5 	.SH·DESCRIPTION	5 	.SH·DESCRIPTION
6 	FPC·Instruction·Table·Converter·Version·0.9	6 
FPC·Instruction·Table·Converter·Version·0.9
7 	Based·on·Narm·Instruction·Table·Converter	7 
Based·on·Narm·Instruction·Table·Converter
8 	creating·a64tab.inc	8 	creating·a64tab.inc
9 	creating·a64op.inc	9 	creating·a64op.inc
10 	creating·a64att.inc	10 	creating·a64att.inc
11 	creating·a64atts.inc	11 	creating·a64atts.inc
12 	Runtime·error·2·at·$000055B6FF15765A	12 
Runtime·error·2·at·$000055E17207265A
13 	.IP	13 	.IP
14 	$000055B6FF15765A	14 	$000055E17207265A
15 	.SH·"SEE·ALSO"	15 	.SH·"SEE·ALSO"
16 	The·full·documentation·for	16 	The·full·documentation·for
17 	.B·mka64ins-3.2.2	17 	.B·mka64ins-3.2.2
18 	is·maintained·as·a·Texinfo·manual.··If·the	18 
is·maintained·as·a·Texinfo·manual.··If·the
19 	.B·info	19 	.B·info
20 	and	20 	and
21 	.B·mka64ins-3.2.2	21 	.B·mka64ins-3.2.2

Paul

[1] https://qa.debian.org/excuses.php?package=fpc
[2] https://tests.reproducible-builds.org/debian/history/amd64/fpc.html

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#1232040 — Bug#1095306: [Pkg-pascal-devel] Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42

FromAbou Al Montacir <abou.almontacir@sfr.fr>
Date2025-02-06 21:40 +0100
SubjectBug#1095306: [Pkg-pascal-devel] Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42
Message-ID<KdgPg-eVon-3@gated-at.bofh.it>
In reply to#1232035

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Hi Paul,

On Thu, 2025-02-06 at 21:04 +0100, Paul Gevers wrote:
> I *think* what I'm 
> seeing is a crash recorded during the generation of the man pages.

Yes, indeed, I can see the following in the following when running man mka64ins-
3.2.2
DESCRIPTION
       FPC  Instruction  Table Converter Version 0.9 Based on Narm Instruction Table Converter creating
       a64tab.inc creating a64op.inc creating  a64att.inc  creating  a64atts.inc  Runtime  error  2  at
       $0000558489B3665A

              $0000558489B3665A

SEE ALSO

So this maybe a regression caused by the hardening change. I'll have a look at it.
-- 
Cheers,
Abou Al Montacir

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#1232159 — Bug#1095306: [Pkg-pascal-devel] Bug#1095306: Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42

FromAbou Al Montacir <abou.almontacir@sfr.fr>
Date2025-02-07 16:10 +0100
SubjectBug#1095306: [Pkg-pascal-devel] Bug#1095306: Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42
Message-ID<Kdy9r-f6uD-7@gated-at.bofh.it>
In reply to#1232040

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Hi Paul,

On Thu, 2025-02-06 at 21:13 +0100, Abou Al Montacir wrote:
> Hi Paul,
> 
> On Thu, 2025-02-06 at 21:04 +0100, Paul Gevers wrote:
> > I *think* what I'm 
> > seeing is a crash recorded during the generation of the man pages.
> 
> Yes, indeed, I can see the following in the following when running man
> mka64ins-3.2.2
> DESCRIPTION
>        FPC  Instruction  Table Converter Version 0.9 Based on Narm Instruction Table Converter creating
>        a64tab.inc creating a64op.inc creating  a64att.inc  creating  a64atts.inc  Runtime  error  2  at
>        $0000558489B3665A
> 
>               $0000558489B3665A
> 
> SEE ALSO
> 
> So this maybe a regression caused by the hardening change. I'll have a look at it.
I just checked on testing and man mka64ins-3.2.2 gives similar error message
inside the man file.

So probably this is an old bug but that was hidden by the fact that adresses in
the call stack used to be the very same while now PIE made it visible.
-- 
Cheers,
Abou Al Montacir

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#1232381 — Bug#1095306: [Pkg-pascal-devel] Bug#1095306: Bug#1095306: Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42

FromAbou Al Montacir <abou.almontacir@sfr.fr>
Date2025-02-08 21:30 +0100
SubjectBug#1095306: [Pkg-pascal-devel] Bug#1095306: Bug#1095306: Bug#1095306: fpc: reproducibility regression in either 3.2.2+dfsg-41 or 3.2.2+dfsg-42
Message-ID<KdZCF-fnxO-1@gated-at.bofh.it>
In reply to#1232159

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Hi Paul,

On Fri, 2025-02-07 at 15:57 +0100, Abou Al Montacir wrote:
> Hi Paul,
> 
> On Thu, 2025-02-06 at 21:13 +0100, Abou Al Montacir wrote:
> > Hi Paul,
> > 
> > On Thu, 2025-02-06 at 21:04 +0100, Paul Gevers wrote:
> > > I *think* what I'm 
> > > seeing is a crash recorded during the generation of the man pages.
> > 
> > Yes, indeed, I can see the following in the following when running man
> > mka64ins-3.2.2
> > DESCRIPTION
> >        FPC  Instruction  Table Converter Version 0.9 Based on Narm Instruction Table Converter creating
> >        a64tab.inc creating a64op.inc creating  a64att.inc  creating  a64atts.inc  Runtime  error  2  at
> >        $0000558489B3665A
> > 
> >               $0000558489B3665A
> > 
> > SEE ALSO
> > 
> > So this maybe a regression caused by the hardening change. I'll have a look at it.
> I just checked on testing and man mka64ins-3.2.2 gives similar error message
> inside the man file.
> 
> So probably this is an old bug but that was hidden by the fact that adresses
> in the call stack used to be the very same while now PIE made it visible.

There are 3 programs named mka64ins-3.2.2, mkarmins-3.2.2 and mkx86ins-3.2.2
that are helper programs used by the compiler compilation which do not support -
h/--help and do not even take any parameter. They only read a file in a relative
position to current directory and write some pascal include files that are part
of the compiler sources.

So these programs are not useful for users and should not be packaged. I'm going
to upload a new version discarding them once current version hits testing (in 3
days I hope).
-- 
Cheers,
Abou Al Montacir

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