[Bug gold/16111] missing symbol in anonymous namespace in dynamic library not detected when cross compiling to IA-32, linked application segfaults

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16111

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Assignee|ian at airs dot com|ccoutant at gmail dot 
com

--- Comment #2 from Cary Coutant  ---
Committed patch to diagnose the GOTOFF reference to undefined symbol on i386.

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[Bug gold/16111] missing symbol in anonymous namespace in dynamic library not detected when cross compiling to IA-32, linked application segfaults

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=16111

--- Comment #1 from cvs-commit at gcc dot gnu.org  ---
The master branch has been updated by Cary Coutant :

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ed700649d0607e6509d5bbc51f4617bbae13a543

commit ed700649d0607e6509d5bbc51f4617bbae13a543
Author: Cary Coutant 
Date:   Sun Mar 27 16:09:56 2016 -0700

Fix failure to diagnose GOTOFF relocation to undef symbol in shared lib
(i386).

gold/
PR gold/16111
* i386.cc (Target_i386): Add check for fully-resolved symbol for
R_386_GOTOFF.

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[Bug gold/15460] lack of "relocation truncated to fit: R_X86_64_32 against `.debug_info'" failure for too large debug info

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15460

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #1 from Cary Coutant  ---
Resolving as duplicate. PR 18695 is more comprehensive and contains more
discussion.

*** This bug has been marked as a duplicate of bug 18695 ***

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[Bug gold/18695] [x86-64] Missing relocation overflow check

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18695

Cary Coutant  changed:

   What|Removed |Added

 CC||peeter.joot at gmail dot com

--- Comment #13 from Cary Coutant  ---
*** Bug 15460 has been marked as a duplicate of this bug. ***

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[Bug ld/19871] description of --pie, --pic-executable options contains wrong-looking statement

[britton.kerin at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19871

Britton Kerin  changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|INVALID |---

--- Comment #2 from Britton Kerin  ---

I haven't tried to use malloc overlay or the like before so I don't know
exactly how it normally works.  Sounds like it only ever works for functions in
shared libraries.  It But I'm not totally ignorant either, so probably count as
a reasonable target for the documentation.

Is it like this:

"normal dynamically linked executables"
  * symbols cannot be preempted

"-pie executables
  * symbols cannot be preempted

If so, I guess the mention of the two particular respects in which -pie
executables are like non-pie ones are included because people might think it
ends up like a -fPIC library in which preload etc. can work?  But if this is
the case why mention "they can be executed" at all?  Surely that goes without
saying when creating an executable? 

This description needs improvement somehow, it's not clear as it is if you
don't already know what's going on.

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[Bug gold/15192] Failes to build Chromium project with the gold64 linker and incremental linkage.

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15192

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |ASSIGNED
   Assignee|ian at airs dot com|ccoutant at gmail dot 
com

--- Comment #1 from Cary Coutant  ---
Might be a threading problem. Does it reproduce with --no-threads?

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[Bug ld/19870] description of -shared option doesn't match that in gcc manual

[britton.kerin at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19870

Britton Kerin  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |INVALID

--- Comment #2 from Britton Kerin  ---
In that case the bug is in the gcc documentation, which doesn't accurately
describe the circumstances in which the requirement applies.  I think many
people will make the same wrong assumption I made, because most build setups
don't perform compilation and linking in one single gcc invocation.

It's possible that the ld -shared option would benefit from a mention of -fPIC
or something but that's a different and more questionable issue.

I'm going to mark this resolved here and submit it as a gcc bug.

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[Bug gold/14533] large (88M) ICC compiled .obj files inside .a archive confuse / error the gold linker

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=14533

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |INVALID

--- Comment #9 from Cary Coutant  ---
Closing. Problem was with the compiler.

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[Bug gold/14330] failure to link global hidden symbol

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=14330

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |OBSOLETE

--- Comment #7 from Cary Coutant  ---
Closing.

> This is a wild guess, but I think your asm code is getting placed in a
> random section depending on the other options. Try adding a ".text"
> statement in the function definition below:
> 
> DFGOperations.cpp:
> 
> asm (
> ".globl getHostCallReturnValue\n"
> ".hidden getHostCallReturnValue\n"
> "getHostCallReturnValue:\n"
> "mov -40(%r13), %r13\n"
> "mov %r13, %rdi\n"
> "jmp getHostCallReturnValueWithExecState\n"
> );

If this wasn't the problem, and the problem remains, please reopen.

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[Bug gold/14316] gold build failure with recent GCC trunk because of -Werror=unused-local-typedefs

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=14316

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #1 from Cary Coutant  ---
Fixed with:

https://sourceware.org/ml/binutils-cvs/2012-07/msg00045.html

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[Bug gold/14124] Linking fails with 'address of section '.tbss' moves backward from 0xc008 to 0xc000'

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=14124

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |WAITING

--- Comment #5 from Cary Coutant  ---
Waiting to hear if this is fixed with mainline gold.

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[Bug gold/13322] ARM/Thumb interwork stubs should appear in some way in the symbol table

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13322

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #1 from Cary Coutant  ---
This looks like the cause of PR 13321.

*** This bug has been marked as a duplicate of bug 13321 ***

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[Bug gold/13321] Gold creates mixed Thumb/ARM files that objdump -d doesn't understand

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13321

--- Comment #3 from Cary Coutant  ---
*** Bug 13322 has been marked as a duplicate of this bug. ***

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[Bug gold/13214] Gold does emit mapping symbols for stubs

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13214

Cary Coutant  changed:

   What|Removed |Added

 CC||ccoutant at gmail dot com

--- Comment #2 from Cary Coutant  ---
Was this fixed with the fix to PR 13321?

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[Bug gold/13321] Gold creates mixed Thumb/ARM files that objdump -d doesn't understand

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13321

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #2 from Cary Coutant  ---
Fixed.

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[Bug gold/13162] gold should support -Ttext-segment, not overload -Ttext

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13162

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |FIXED

--- Comment #1 from Cary Coutant  ---
Fixed (mostly) with:

https://sourceware.org/ml/binutils-cvs/2013-02/msg00120.html

But -Ttext still means the same thing as -Ttext-segment in gold. That part is
WONTFIX.

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[Bug gold/13019] "error: load segment overlap" when linking Linux kernel

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=13019

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |INVALID

--- Comment #5 from Cary Coutant  ---
With the dot problem split out as a separate bug (and fixed), and the segment
overlap problem acknowledged as a problem with the script, I think this bug can
be closed.

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[Bug gold/12971] Segmentation fault: 11 when using -flto=6 on FreeBSD 8.2

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12971

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |OBSOLETE

--- Comment #5 from Cary Coutant  ---
Seems to work now; closing.

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[Bug gold/12968] gold generates broken binaries on FreeBSD 8.2

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12968

Cary Coutant  changed:

   What|Removed |Added

 CC||ccoutant at gmail dot com
   Assignee|ian at airs dot com|ccoutant at gmail dot 
com

--- Comment #19 from Cary Coutant  ---
I have a feeling that this may be due to a bug in the way gold reverses the
contents of the .ctors sections as it moves them to .init_array. In
do_relocate(), we reverse the individual words of a .ctors section, but we do
not reverse the corresponding dynamic relocations. If every entry in a .ctors
section produces a RELATIVE relocation, it doesn't matter, but if, for some
reason, there's a different kind of relocation (or no relocation) on one or
more entries, this could cause a runtime crash as an entry that should have had
a RELATIVE relocation applied doesn't get relocated, or vice versa.

Now that GCC has been putting ctors in .init_array for quite a while now, this
bug is probably obsolete, but still ought to be fixed just because it has the
potential for causing a crash.

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[Bug gold/12488] plugins don't support linkonce

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12488

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #8 from Cary Coutant  ---
> I noticed that the real problem is that plugins don't support linkonce. We
> select the symbol from the IL file but the section from the elf file :-)
> 
> Shouldn't be too hard to add support, but I will try to get LLVM to use
> comdat instead.
> 
> Should I close as wontfix?

Yeah, I think comdat is the right way to go.

BTW, with plugin_test.so, it doesn't recognize comdat symbols from the .syms
file, but if you add the comdat key as a --plugin-opt, it will special-case a
symbol of the same name. Limited use, but sufficient for the test cases.

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[Bug gold/12472] ifuncmain7pie failed on Fedora 14/x64-64

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12472

Cary Coutant  changed:

   What|Removed |Added

 Status|REOPENED|RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |OBSOLETE

--- Comment #10 from Cary Coutant  ---
Closing as obsolete.

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[Bug gold/12433] Linking libjvm.so with LTO fails with undefined references

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12433

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |FIXED
   Assignee|ian at airs dot com|ccoutant at gmail dot 
com

--- Comment #8 from Cary Coutant  ---
I think that has been fixed for a while now, closing.

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[Bug gold/12353] exception_separate_shared_{12,21}_test fail when built with --as-needed

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12353

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |FIXED
   Assignee|ian at airs dot com|ccoutant at gmail dot 
com

--- Comment #1 from Cary Coutant  ---
Fixed with this commit:

https://sourceware.org/ml/binutils-cvs/2012-12/msg00083.html

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[Bug gold/12244] 416.gamess in SPEC CPU 2006 is miscompiled by LTO with gold

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12244

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |FIXED

--- Comment #3 from Cary Coutant  ---
This was marked as fixed on the GCC side.

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[Bug gold/11997] Different behevior of MEMORY regions

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11997

Cary Coutant  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |FIXED

--- Comment #7 from Cary Coutant  ---
>1. GOLD creates an extra segment to hold the program headers, LD does 
> not.
> 
>2. GOLD orders the sections in the section header by file offset, LD 
> orders them by the sequence in which they were declared in the linker 
> script.
> 
> I do not feel that these are major issues, but I am leaving the PR open 
> in case anyone else feels differently.

Looks like no one felt differently. Closing.

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[Bug gold/11604] gc not as effective when using a plugin

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11604

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |FIXED

--- Comment #4 from cvs-commit at gcc dot gnu.org  ---
Subject: Bug 11604

CVSROOT:/cvs/src
Module name:src
Changes by: espind...@sourceware.org2010-05-26 15:47:39

Modified files:
gold   : ChangeLog object.cc 
gold/testsuite : Makefile.am Makefile.in 
Added files:
gold/testsuite : plugin_test_7.sh plugin_test_7_1.c 
 plugin_test_7_2.c 

Log message:
2010-05-26  Rafael Espindola  

PR 11604
* gold/object.cc(Sized_relobj::do_layout_deferred_sections): Avoid
adding sections the garbage collector removed.
* gold/testsuite/Makefile.am: Add test.
* gold/testsuite/Makefile.in: Regenerate.
* gold/testsuite/plugin_test_7.sh: New.
* gold/testsuite/plugin_test_7_1.c: New.
* gold/testsuite/plugin_test_7_2.c: New.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/ChangeLog.diff?cvsroot=src=1.565=1.566
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/object.cc.diff?cvsroot=src=1.122=1.123
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/testsuite/plugin_test_7.sh.diff?cvsroot=src=NONE=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/testsuite/plugin_test_7_1.c.diff?cvsroot=src=NONE=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/testsuite/plugin_test_7_2.c.diff?cvsroot=src=NONE=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/testsuite/Makefile.am.diff?cvsroot=src=1.134=1.135
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/testsuite/Makefile.in.diff?cvsroot=src=1.141=1.142



--- Comment #5 from Cary Coutant  ---
Looks like this was fixed back in 2010.

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[Bug gold/11533] gold generates bad DSO

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11533

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |OBSOLETE

--- Comment #2 from Cary Coutant  ---
This appears to have been fixed at some point. It no longer fails one trunk.

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[Bug gold/11350] Broken versioned symbols in the output for the relocatable objects

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11350

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |ASSIGNED
 CC||ccoutant at gmail dot com
   Assignee|ian at airs dot com|ccoutant at gmail dot 
com

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[Bug gold/11259] executables linked with gold segfault

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11259

Cary Coutant  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||ccoutant at gmail dot com
 Resolution|--- |OBSOLETE

--- Comment #2 from Cary Coutant  ---
Closing this for lack of activity. Please reopen if it's still an issue.

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[Bug gold/6767] program linked with gold seg faults

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=6767

Cary Coutant  changed:

   What|Removed |Added

 Status|SUSPENDED   |ASSIGNED
 CC||ccoutant at gmail dot com
   Assignee|ian at airs dot com|amodra at gmail dot com

--- Comment #6 from Cary Coutant  ---
I suspect this bug can be closed now.

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[Bug ld/19870] description of -shared option doesn't match that in gcc manual

[ccoutant at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19870

Cary Coutant  changed:

   What|Removed |Added

 CC||ccoutant at gmail dot com

--- Comment #1 from Cary Coutant  ---
The linker manual describes only linker options. The -fpic and model suboptions
are not linker options. They're only required when you pass -shared to gcc if
you're also compiling source files at the same time. If you're just running gcc
to link a bunch of .o files, compiler options like -fpic are unnecessary.

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[Bug ld/19871] description of --pie, --pic-executable options contains wrong-looking statement

[sch...@linux-m68k.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19871

Andreas Schwab  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |INVALID

--- Comment #1 from Andreas Schwab  ---
"normal dynamically linked executables" refers to non-pie objects which are
like pie objects where symbols cannot be preempted.

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[Bug ld/18452] ld allows overlapping sections

[cristiangavril_olar at yahoo dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18452

Cristian Gavril Olar  changed:

   What|Removed |Added

 CC||cristiangavril_olar at yahoo 
dot c
   ||om

--- Comment #4 from Cristian Gavril Olar  
---
Created attachment 9132
  --> https://sourceware.org/bugzilla/attachment.cgi?id=9132=edit
binutils LD change patch

Like the link in the last comment shows, this behavior is sane because BSS
sections have to be able to overlap between themselves and data sections for
overlay reasons. But as one user of LD who both needs overlaps but at the same
time has been bitten by longish debugging hours because of not realizing that I
had incidentally created unwanted/accidental overlaps I suggest the following
change:
1) Have LD inform by default if there are noload sections overlapping other
sections
2) If someone saw the information, became aware of the overlap and consciously
makes a choice to quiet down that information, provide a LD flag that would
silence that extra verbosity

The attached patch is a suggestion of such a change. Basically, in a default
run, LD would just print information of the sort of:
"legal section overlap of section .text loaded at
[8010,801f] overlapping section .bss loaded at
[8000,801f]. See
https://sourceware.org/ml/binutils/2009-05/msg00330.html;
And if the user decides that they have become aware and that for their case
this is a legal use, they could silence the information by using a
"--no-check-overlap-noload-sections" flag sent to LD.

The patch is done against binutils 2.24.

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