[Bug ld/19531] New: ld fails to build proper executables in several cases on x64_64-w64-mingw32

2016-01-29 Thread rai...@emrich-ebersheim.de 
https://sourceware.org/bugzilla/show_bug.cgi?id=19531

Bug ID: 19531
   Summary: ld fails to build proper executables in several cases
on x64_64-w64-mingw32
   Product: binutils
   Version: 2.26
Status: NEW
  Severity: normal
  Priority: P2
 Component: ld
  Assignee: unassigned at sourceware dot org
  Reporter: rai...@emrich-ebersheim.de
  Target Milestone: ---

Created attachment 8929
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8929=edit
test case

I first discovered this by bootstrapping gcc and running the testsuite. I got
around 1200 new failures for the same gcc revision using binutils-2.26 compared
to using binutils-2.25.1, see
https://gcc.gnu.org/ml/gcc-testresults/2016-01/msg02756.html
and
https://gcc.gnu.org/ml/gcc-testresults/2016-01/msg02757.html

Most failures in the libstdc++ testsuite, 954 additional failures.

Besides the new failures, some tests which PASS and a some which FAIL allocate
huge memory spaces, over 40 GByte.

So I tried to analyze a bit. I picked a test case from the libstdc++ testsuite
22_locale/locale/cons/6.cc. Checking the preprocessed source, the assemply and
the object files for the support library and the test case itself there's no
difference. I disabled all debug information for an easier comparison. The
objects are identical for both versions.

I attach a test archive containing the support library and the object file, two
versions of the executable and the two dlls libstdc++-6.dll and
libgcc_s_seh-1.dll
to run the executables on a windows system.
The executable 6-2.15.1.exe is the one which is linked using ld-2.15.1, the
executable 6-2.16.exe is the one which is linked using ld-2.16.
The first one is fine the latter isn't.

I don't know how to analyze any further. Can someone have a look, please.

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[Bug ld/19531] ld fails to build proper executables in several cases on x64_64-w64-mingw32

2016-01-29 Thread rai...@emrich-ebersheim.de 
https://sourceware.org/bugzilla/show_bug.cgi?id=19531

Rainer Emrich  changed:

   What|Removed |Added

 Target||x86_64-w64-mingw32
   Host||x86_64-w64-mingw32
  Build||x86_64-w64-mingw32

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[Bug ld/19531] ld fails to build proper executables in several cases on x64_64-w64-mingw32

2016-01-29 Thread rai...@emrich-ebersheim.de 
https://sourceware.org/bugzilla/show_bug.cgi?id=19531

--- Comment #1 from Rainer Emrich  ---
Ah, forgot the linking command:
g++ -shared-libgcc -fmessage-length=0 -ffunction-sections -fdata-sections -g0
-O2 -fno-diagnostics-show-caret -fdiagnostics-color=never ./6.o ./libtestc++.a
-Wl,--gc-sections -liconv -lm -o 6.exe

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[Bug ld/19533] Replace == in test conditional with =

2016-01-29 Thread cvs-commit at gcc dot gnu.org 
https://sourceware.org/bugzilla/show_bug.cgi?id=19533

--- Comment #2 from cvs-commit at gcc dot gnu.org  ---
The master branch has been updated by H.J. Lu :

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=621ff761b3ca490233e347411067da9ab72c8d65

commit 621ff761b3ca490233e347411067da9ab72c8d65
Author: H.J. Lu 
Date:   Fri Jan 29 07:47:13 2016 -0800

Replace == with = in ld/configure.ac

 PR ld/19533
* configure.ac (compressed_debug_sections): Replace == with =.
* configure: Regenerated.

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[Bug gas/19532] Please improve POSIX shell compatibility of gas/configure.ac

2016-01-29 Thread cvs-commit at gcc dot gnu.org 
https://sourceware.org/bugzilla/show_bug.cgi?id=19532

--- Comment #2 from cvs-commit at gcc dot gnu.org  ---
The master branch has been updated by H.J. Lu :

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=348ef89a5443529b2a67fa9d247debf3e707a4bd

commit 348ef89a5443529b2a67fa9d247debf3e707a4bd
Author: H.J. Lu 
Date:   Fri Jan 29 07:47:45 2016 -0800

Replace == with = in gas/configure.ac

PR gas/19532
* configure.ac (compressed_debug_sections): Replace == with =.
* configure: Regenerated.

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[Bug gas/19532] Please improve POSIX shell compatibility of gas/configure.ac

2016-01-29 Thread hjl.tools at gmail dot com 
https://sourceware.org/bugzilla/show_bug.cgi?id=19532

H.J. Lu  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |2.27

--- Comment #1 from H.J. Lu  ---
Fixed.

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[Bug ld/19533] Replace == in test conditional with =

2016-01-29 Thread hjl.tools at gmail dot com 
https://sourceware.org/bugzilla/show_bug.cgi?id=19533

H.J. Lu  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |2.27

--- Comment #1 from H.J. Lu  ---
Fixed.

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[Bug gas/19532] Please improve POSIX shell compatibility of gas/configure.ac

2016-01-29 Thread cvs-commit at gcc dot gnu.org 
https://sourceware.org/bugzilla/show_bug.cgi?id=19532

--- Comment #3 from cvs-commit at gcc dot gnu.org  ---
The binutils-2_26-branch branch has been updated by H.J. Lu
:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=3c9d874373f2189cb704999b0ba39b9bbca91a61

commit 3c9d874373f2189cb704999b0ba39b9bbca91a61
Author: H.J. Lu 
Date:   Fri Jan 29 07:47:45 2016 -0800

Replace == with = in gas/configure.ac

Backport from master

PR gas/19532
* configure.ac (compressed_debug_sections): Replace == with =.
* configure: Regenerated.

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[Bug ld/19533] Replace == in test conditional with =

2016-01-29 Thread cvs-commit at gcc dot gnu.org 
https://sourceware.org/bugzilla/show_bug.cgi?id=19533

--- Comment #3 from cvs-commit at gcc dot gnu.org  ---
The binutils-2_26-branch branch has been updated by H.J. Lu
:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=52b756da0b372cb7cc1a18b22415cd36f89f90e6

commit 52b756da0b372cb7cc1a18b22415cd36f89f90e6
Author: H.J. Lu 
Date:   Fri Jan 29 07:47:13 2016 -0800

Replace == with = in ld/configure.ac

Backport from master

PR ld/19533
* configure.ac (compressed_debug_sections): Replace == with =.
* configure: Regenerated.

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[Bug ld/19526] Using "gcc -o /dev/null" gives "ld: final link failed: File truncated" error

2016-01-29 Thread dave.anglin at bell dot net 
https://sourceware.org/bugzilla/show_bug.cgi?id=19526

--- Comment #2 from dave.anglin at bell dot net ---
On 2016-01-29 4:17 PM, deller at gmx dot de wrote:
> https://sourceware.org/bugzilla/show_bug.cgi?id=19526
>
> --- Comment #1 from Helge Deller  ---
> The debian "libbsd" package fails because of the same issue:
>
> gcc -isystem ../include/bsd -I.. -include ../config.h
> -DLIBBSD_DISABLE_DEPRECATED -D__REENTRANT -DLIBBSD_OVERLAY
> headers-overlay-gen.c -o /dev/null
> /usr/bin/ld: final link failed: File truncated
> collect2: error: ld returned 1 exit status
> FAIL headers-overlay.sh (exit status: 1)
>
> Full log:
> https://buildd.debian.org/status/fetch.php?pkg=libbsd=hppa=0.8.2-1=1453935236
>
I have built a debug version of binutils.  I'll see if I can find 
problem this weekend.

Dave

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[Bug ld/19526] Using "gcc -o /dev/null" gives "ld: final link failed: File truncated" error

2016-01-29 Thread dave.anglin at bell dot net 
https://sourceware.org/bugzilla/show_bug.cgi?id=19526

--- Comment #3 from dave.anglin at bell dot net ---
It's not necessary to use a pipe to duplicate.  I created a file xxx.c with
'int main(){}' and
compiled with -save-temps and -Wl,-debug to get the actual link command.  Here
is backtrace
for bfd_error_file_truncated:

Breakpoint 4, bfd_set_error (error_tag=724328) at ../../src/bfd/bfd.c:511
511   va_start (ap, error_tag);
(gdb) step
503 {
(gdb) 
504   bfd_error = error_tag;
(gdb) 
505   if (error_tag == bfd_error_on_input)
(gdb) p bfd_error
$3 = bfd_error_file_truncated
(gdb) bt
#0  bfd_set_error (error_tag=bfd_error_file_truncated)
at ../../src/bfd/bfd.c:505
#1  0xfd1ade30 in cache_bread_1 (abfd=0xaecb0, buf=0x257978, nbytes=256)
at ../../src/bfd/cache.c:347
#2  0xfd1adf60 in cache_bread (abfd=0xaecb0, buf=0x257978, nbytes=256)
at ../../src/bfd/cache.c:368
#3  0xfd1ac17c in bfd_bread (ptr=0x257978, size=256, abfd=0xaecb0)
at ../../src/bfd/bfdio.c:196
#4  0xfd1b6000 in _bfd_generic_get_section_contents (abfd=0xaecb0, 
section=0xb0850, location=0x257978, offset=0, count=256)
at ../../src/bfd/libbfd.c:812
#5  0xfd1ca458 in bfd_get_section_contents (abfd=0xaecb0, section=0xb0850, 
location=0x257978, offset=0, count=256) at ../../src/bfd/section.c:1619
#6  0xfd1af8c4 in bfd_get_full_section_contents (abfd=0xaecb0, sec=0xb0850, 
ptr=0xfd7034d0) at ../../src/bfd/compress.c:253
#7  0xfd1ca4d8 in bfd_malloc_and_get_section (abfd=0xaecb0, sec=0xb0850, 
buf=0xfd7034d0) at ../../src/bfd/section.c:1640
#8  0xfd1ddb4c in elf_hppa_sort_unwind (abfd=0xaecb0)
at ../../src/bfd/elf-hppa.h:1196
#9  0xfd1e6030 in elf32_hppa_final_link (abfd=0xaecb0, 
info=0x9f5b0 ) at ../../src/bfd/elf32-hppa.c:3257
#10 0x00049010 in ldwrite () at ../../src/ld/ldwrite.c:581
#11 0x00043bd8 in main (argc=38, argv=0xfd70302c) at ../../src/ld/ldmain.c:430
(gdb) frame 8
#8  0xfd1ddb4c in elf_hppa_sort_unwind (abfd=0xaecb0)
at ../../src/bfd/elf-hppa.h:1196
1196  if (!bfd_malloc_and_get_section (abfd, s, ))
(gdb) p *abfd
$4 = {filename = 0xb0d58 "/dev/null", 
  xvec = 0xfd2d07b8 , iostream = 0xb0d68, 
  iovec = 0xfd2c90a0 , lru_prev = 0xc5738, lru_next = 0x118568, 
  where = 2228, mtime = 0, id = 0, format = bfd_object, 
  direction = write_direction, flags = 386, cacheable = 1, 
  target_defaulted = 0, opened_once = 1, mtime_set = 0, no_export = 0, 
  output_has_begun = 1, has_armap = 0, is_thin_archive = 0, 
  selective_search = 0, is_linker_output = 1, is_linker_input = 0, 
  plugin_format = bfd_plugin_uknown, lto_output = 0, plugin_dummy_bfd = 0x0, 
  origin = 0, proxy_origin = 0, section_htab = {table = 0x232490, 
newfunc = @0xfd42031e: 0xfd1c8b08 , 
memory = 0xafd60, size = 61, count = 31, entsize = 184, frozen = 0}, 
  sections = 0xafdc0, section_last = 0x232878, section_count = 27, 
  archive_pass = 0, start_address = 66496, outsymbols = 0x0, symcount = 93, 
  dynsymcount = 0, arch_info = 0xfd2d1140 , arelt_data = 0x0, 
  my_archive = 0x0, archive_next = 0x0, archive_head = 0x0, 
  nested_archives = 0x0, link = {next = 0xb0ed0, hash = 0xb0ed0}, tdata = {
aout_data = 0xaed80, aout_ar_data = 0xaed80, oasys_obj_data = 0xaed80, 
oasys_ar_data = 0xaed80, coff_obj_data = 0xaed80, pe_obj_data = 0xaed80, 
xcoff_obj_data = 0xaed80, ecoff_obj_data = 0xaed80, ieee_data = 0xaed80, 
ieee_ar_data = 0xaed80, srec_data = 0xaed80, verilog_data = 0xaed80, 
ihex_data = 0xaed80, tekhex_data = 0xaed80, elf_obj_data = 0xaed80, 
nlm_obj_data = 0xaed80, bout_data = 0xaed80, mmo_data = 0xaed80, 
sun_core_data = 0xaed80, sco5_core_data = 0xaed80, 
trad_core_data = 0xaed80, som_data = 0xaed80, hpux_core_data = 0xaed80, 
hppabsd_core_data = 0xaed80, sgi_core_data = 0xaed80, 
lynx_core_data = 0xaed80, osf_core_data = 0xaed80, 
cisco_core_data = 0xaed80, versados_data = 0xaed80, 
netbsd_core_data = 0xaed80, mach_o_data = 0xaed80, 
mach_o_fat_data = 0xaed80, plugin_data = 0xaed80, pef_data = 0xaed80, 
pef_xlib_data = 0xaed80, sym_data = 0xaed80, any = 0xaed80}, 
  usrdata = 0x0, memory = 0xaed68, build_id = 0x0}

Maybe skipping sort when filename is "/dev/null" will fix.

Is there a better test?

Dave
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[Bug ld/19526] Using "gcc -o /dev/null" gives "ld: final link failed: File truncated" error

2016-01-29 Thread dave.anglin at bell dot net 
https://sourceware.org/bugzilla/show_bug.cgi?id=19526

--- Comment #4 from dave.anglin at bell dot net ---
On 2016-01-29, at 9:05 PM, John David Anglin wrote:

> Maybe skipping sort when filename is "/dev/null" will fix.

Untested fix.

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[Bug ld/19526] Using "gcc -o /dev/null" gives "ld: final link failed: File truncated" error

2016-01-29 Thread deller at gmx dot de 
https://sourceware.org/bugzilla/show_bug.cgi?id=19526

--- Comment #1 from Helge Deller  ---
The debian "libbsd" package fails because of the same issue:

gcc -isystem ../include/bsd -I.. -include ../config.h
-DLIBBSD_DISABLE_DEPRECATED -D__REENTRANT -DLIBBSD_OVERLAY
headers-overlay-gen.c -o /dev/null
/usr/bin/ld: final link failed: File truncated
collect2: error: ld returned 1 exit status
FAIL headers-overlay.sh (exit status: 1)

Full log:
https://buildd.debian.org/status/fetch.php?pkg=libbsd=hppa=0.8.2-1=1453935236

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