GNU bug report logs -
#24682
26.0.50; Bootstrap failed
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Reported by: Michael Albinus <michael.albinus <at> gmx.de>
Date: Thu, 13 Oct 2016 10:10:01 UTC
Severity: normal
Tags: patch
Found in version 26.0.50
Done: Paul Eggert <eggert <at> cs.ucla.edu>
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Michael Albinus <michael.albinus <at> gmx.de>:
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
[Message part 1 (text/plain, inline)]
I have upgraded one of my systems from Ubuntu 16.04 to 16.10. Now `make
bootstrap' fails on master with
--8<---------------cut here---------------start------------->8---
Finding pointers to doc strings...
Finding pointers to doc strings...done
Dumping under the name emacs
21680640 of 33554432 static heap bytes used
Makefile:749: recipe for target 'bootstrap-emacs' failed
make[1]: *** [bootstrap-emacs] Segmentation fault (core dumped)
--8<---------------cut here---------------end--------------->8---
One possible reason could be, that gcc has been upgraded from
"gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)" to
"gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12)"
I am appending config.log
Best regards, Michael.
[config.log (text/plain, attachment)]
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(Thu, 13 Oct 2016 12:45:01 GMT)
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Message #8 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Michael Albinus <michael.albinus <at> gmx.de> writes:
> One possible reason could be, that gcc has been upgraded from
> "gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)" to
> "gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12)"
Calling the following command sequence results in the same error:
# CC=gcc-5 ./configure; make bootstrap
This uses "gcc version 5.4.1 20160929 (Ubuntu 5.4.1-2ubuntu2)".
Best regards, Michael.
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(Thu, 13 Oct 2016 16:23:01 GMT)
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Message #11 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Michael Albinus <michael.albinus <at> gmx.de>
> Date: Thu, 13 Oct 2016 12:05:06 +0200
>
> I have upgraded one of my systems from Ubuntu 16.04 to 16.10. Now `make
> bootstrap' fails on master with
>
> --8<---------------cut here---------------start------------->8---
> Finding pointers to doc strings...
> Finding pointers to doc strings...done
> Dumping under the name emacs
> 21680640 of 33554432 static heap bytes used
> Makefile:749: recipe for target 'bootstrap-emacs' failed
> make[1]: *** [bootstrap-emacs] Segmentation fault (core dumped)
> --8<---------------cut here---------------end--------------->8---
>
> One possible reason could be, that gcc has been upgraded from
> "gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)" to
> "gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12)"
Please run the faulting command under GDB, and when it crashes, show
the backtrace.
Thanks.
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(Thu, 13 Oct 2016 16:29:01 GMT)
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Message #14 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Eli Zaretskii <eliz <at> gnu.org> writes:
> Please run the faulting command under GDB, and when it crashes, show
> the backtrace.
I've just left the office. Next time I have access to that machine is
next Tuesday. Sorry.
> Thanks.
Best regards, Michael.
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(Fri, 14 Oct 2016 14:41:02 GMT)
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Message #17 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Eli Zaretskii <eliz <at> gnu.org> writes:
>> From: Michael Albinus <michael.albinus <at> gmx.de>
>> Date: Thu, 13 Oct 2016 12:05:06 +0200
>>
>> I have upgraded one of my systems from Ubuntu 16.04 to 16.10. Now `make
>> bootstrap' fails on master with
>>
>> --8<---------------cut here---------------start------------->8---
>> Finding pointers to doc strings...
>> Finding pointers to doc strings...done
>> Dumping under the name emacs
>> 21680640 of 33554432 static heap bytes used
>> Makefile:749: recipe for target 'bootstrap-emacs' failed
>> make[1]: *** [bootstrap-emacs] Segmentation fault (core dumped)
>> --8<---------------cut here---------------end--------------->8---
>>
>> One possible reason could be, that gcc has been upgraded from
>> "gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)" to
>> "gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12)"
>
> Please run the faulting command under GDB, and when it crashes, show
> the backtrace.
Fortunately, it happened also on my working horse at home. Here we are:
gdb --args ./temacs --batch --load loadup bootstrap
GNU gdb (Ubuntu 7.12-0ubuntu1) 7.12
[...]
Loading /home/albinus/src/emacs/lisp/cus-start.el (source)...
Loading /home/albinus/src/emacs/lisp/tooltip.el (source)...
Finding pointers to doc strings...
Finding pointers to doc strings...done
Dumping under the name emacs
20599360 of 33554432 static heap bytes used
Program received signal SIGSEGV, Segmentation fault.
__memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:130
130 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: No such file or directory.
(gdb) bt
#0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:130
#1 0x0000555555707f8b in memcpy (__len=1465781148, __src=0x781464,
__dest=0x7fff8fc1a464) at /usr/include/x86_64-linux-gnu/bits/string3.h:53
#2 unexec (
new_name=0x555557049248 <bss_sbrk_buffer+19825800> "/usr/local/src/emacs/src/emacs",
old_name=0x555557049270 <bss_sbrk_buffer+19825840> "/usr/local/src/emacs/src/temacs") at unexelf.c:406
#3 0x000055555565bea7 in Fdump_emacs (filename=93825020178884,
symfile=<optimized out>) at emacs.c:2157
#4 0x00005555556d2b65 in eval_sub (form=<optimized out>) at eval.c:2190
#5 0x00005555556d2e0d in Fprogn (body=93825005441411) at eval.c:432
#6 0x00005555556d2aac in eval_sub (form=<optimized out>) at eval.c:2140
#7 0x00005555556d2aac in eval_sub (form=form <at> entry=93825001004739)
at eval.c:2140
#8 0x00005555556f79ff in readevalloop (readcharfun=readcharfun <at> entry=24960,
stream=stream <at> entry=0x555555d9e8a0 <bss_sbrk_buffer+252640>,
sourcename=sourcename <at> entry=93825001304836,
printflag=printflag <at> entry=false, unibyte=unibyte <at> entry=0,
readfun=readfun <at> entry=0, start=0, end=0) at lread.c:1929
#9 0x00005555556f80ac in Fload (file=93825001304580, noerror=<optimized out>,
nomessage=0, nosuffix=<optimized out>, must_suffix=<optimized out>)
at lread.c:1334
---Type <return> to continue, or q <return> to quit---
#10 0x00005555556d2b1a in eval_sub (form=form <at> entry=93825000997779) at eval.c:2201
#11 0x00005555556d647c in Feval (form=93825000997779, lexical=<optimized out>) at eval.c:2009
#12 0x00005555556d1d42 in internal_condition_case (bfun=bfun <at> entry=0x555555660360 <top_level_2>, handlers=handlers <at> entry=19440,
hfun=hfun <at> entry=0x555555665550 <cmd_error>) at eval.c:1314
#13 0x0000555555662b30 in top_level_1 (ignore=ignore <at> entry=0) at keyboard.c:1135
#14 0x00005555556d1ce3 in internal_catch (tag=tag <at> entry=46320, func=func <at> entry=0x555555662ad0 <top_level_1>, arg=arg <at> entry=0)
at eval.c:1080
#15 0x00005555556602fd in command_loop () at keyboard.c:1096
#16 0x0000555555665147 in recursive_edit_1 () at keyboard.c:703
#17 0x0000555555665498 in Frecursive_edit () at keyboard.c:774
#18 0x0000555555587c4d in main (argc=5, argv=0x7fffffffdd18) at emacs.c:1659
Lisp Backtrace:
"dump-emacs" (0xffffd560)
"progn" (0xffffd628)
"if" (0xffffd6e8)
"load" (0xffffda10)
>
> Thanks.
Best regards, Michael.
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(Fri, 14 Oct 2016 14:54:01 GMT)
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Message #20 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Michael Albinus <michael.albinus <at> gmx.de>
> Cc: 24682 <at> debbugs.gnu.org
> Date: Fri, 14 Oct 2016 16:40:18 +0200
>
> gdb --args ./temacs --batch --load loadup bootstrap
> GNU gdb (Ubuntu 7.12-0ubuntu1) 7.12
>
> [...]
>
> Loading /home/albinus/src/emacs/lisp/cus-start.el (source)...
> Loading /home/albinus/src/emacs/lisp/tooltip.el (source)...
> Finding pointers to doc strings...
> Finding pointers to doc strings...done
> Dumping under the name emacs
> 20599360 of 33554432 static heap bytes used
>
> Program received signal SIGSEGV, Segmentation fault.
> __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:130
> 130 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: No such file or directory.
> (gdb) bt
> #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:130
> #1 0x0000555555707f8b in memcpy (__len=1465781148, __src=0x781464,
> __dest=0x7fff8fc1a464) at /usr/include/x86_64-linux-gnu/bits/string3.h:53
> #2 unexec (
> new_name=0x555557049248 <bss_sbrk_buffer+19825800> "/usr/local/src/emacs/src/emacs",
> old_name=0x555557049270 <bss_sbrk_buffer+19825840> "/usr/local/src/emacs/src/temacs") at unexelf.c:406
> #3 0x000055555565bea7 in Fdump_emacs (filename=93825020178884,
> symfile=<optimized out>) at emacs.c:2157
Isn't the value of __len (about 1.4GB) too large? unexelf.c:406 is
this:
/* Copy over what we have in memory now for the bss area. */
memcpy (new_base + new_data2_offset, (caddr_t) old_bss_addr,
bss_size_growth);
So bss_size_growth is about 1.4GB, which sounds incredibly large.
the value is computed on line 334, can you tell the values of the two
variables that get subtracted there?
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Message #23 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Eli Zaretskii <eliz <at> gnu.org> writes:
>> Program received signal SIGSEGV, Segmentation fault.
>> __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:130
>> 130 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: No such file or directory.
>> (gdb) bt
>> #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:130
>> #1 0x0000555555707f8b in memcpy (__len=1465781148, __src=0x781464,
>> __dest=0x7fff8fc1a464) at /usr/include/x86_64-linux-gnu/bits/string3.h:53
>> #2 unexec (
>> new_name=0x555557049248 <bss_sbrk_buffer+19825800>
>> "/usr/local/src/emacs/src/emacs",
>> old_name=0x555557049270 <bss_sbrk_buffer+19825840>
>> "/usr/local/src/emacs/src/temacs") at unexelf.c:406
>> #3 0x000055555565bea7 in Fdump_emacs (filename=93825020178884,
>> symfile=<optimized out>) at emacs.c:2157
>
> Isn't the value of __len (about 1.4GB) too large? unexelf.c:406 is
> this:
>
> /* Copy over what we have in memory now for the bss area. */
> memcpy (new_base + new_data2_offset, (caddr_t) old_bss_addr,
> bss_size_growth);
>
> So bss_size_growth is about 1.4GB, which sounds incredibly large.
>
> the value is computed on line 334, can you tell the values of the two
> variables that get subtracted there?
The values of local variables are (taken from *locals of temacs*)
int new_file 6
int old_file 5
off_t new_file_size 1487902352
caddr_t old_base 0x7fffe8193000 "\177ELF\002\001\001"
caddr_t new_base 0x7fff8f699000 "\177ELF\002\001\001"
Elf64_Ehdr * old_file_h 0x7fffe8193000
Elf64_Ehdr * new_file_h 0x7fff8f699000
Elf64_Phdr * old_program_h 0x7fffe8193040
Elf64_Phdr * new_program_h <optimized out>
Elf64_Shdr * old_section_h 0x7fffe96aaff0
Elf64_Shdr * new_section_h 0x7fffe8191b90
char * old_section_names 0x7fffe96aae5f ""
char * new_section_names <optimized out>
Elf64_Phdr * old_bss_seg <optimized out>
Elf64_Phdr * new_bss_seg 0x7fff8f6990e8
Elf64_Addr old_bss_addr 7869540
Elf64_Addr new_bss_addr 93825034231808
Elf64_Word old_bss_size <optimized out>
Elf64_Word bss_size_growth 1465781148
Elf64_Word new_data2_size 1465781152
Elf64_Off old_bss_offset 5772388
Elf64_Off new_data2_offset 5772388
ptrdiff_t n <optimized out>
ptrdiff_t old_bss_index 31
struct stat stat_buf <complex data type>
off_t old_file_size 22121200
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Message #26 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Michael Albinus <michael.albinus <at> gmx.de>
> Cc: 24682 <at> debbugs.gnu.org
> Date: Fri, 14 Oct 2016 17:33:53 +0200
>
> > Isn't the value of __len (about 1.4GB) too large? unexelf.c:406 is
> > this:
> >
> > /* Copy over what we have in memory now for the bss area. */
> > memcpy (new_base + new_data2_offset, (caddr_t) old_bss_addr,
> > bss_size_growth);
> >
> > So bss_size_growth is about 1.4GB, which sounds incredibly large.
> >
> > the value is computed on line 334, can you tell the values of the two
> > variables that get subtracted there?
>
> The values of local variables are (taken from *locals of temacs*)
>
> int new_file 6
> int old_file 5
> off_t new_file_size 1487902352
> caddr_t old_base 0x7fffe8193000 "\177ELF\002\001\001"
> caddr_t new_base 0x7fff8f699000 "\177ELF\002\001\001"
> Elf64_Ehdr * old_file_h 0x7fffe8193000
> Elf64_Ehdr * new_file_h 0x7fff8f699000
> Elf64_Phdr * old_program_h 0x7fffe8193040
> Elf64_Phdr * new_program_h <optimized out>
> Elf64_Shdr * old_section_h 0x7fffe96aaff0
> Elf64_Shdr * new_section_h 0x7fffe8191b90
> char * old_section_names 0x7fffe96aae5f ""
> char * new_section_names <optimized out>
> Elf64_Phdr * old_bss_seg <optimized out>
> Elf64_Phdr * new_bss_seg 0x7fff8f6990e8
> Elf64_Addr old_bss_addr 7869540
> Elf64_Addr new_bss_addr 93825034231808
> Elf64_Word old_bss_size <optimized out>
> Elf64_Word bss_size_growth 1465781148
> Elf64_Word new_data2_size 1465781152
> Elf64_Off old_bss_offset 5772388
> Elf64_Off new_data2_offset 5772388
> ptrdiff_t n <optimized out>
> ptrdiff_t old_bss_index 31
> struct stat stat_buf <complex data type>
> off_t old_file_size 22121200
Thanks, this looks like something ELF experts should look into.
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Message #29 received at 24682 <at> debbugs.gnu.org (full text, mbox):
See also similar reports in these messages:
http://lists.gnu.org/archive/html/emacs-devel/2016-10/msg00329.html
http://lists.gnu.org/archive/html/emacs-devel/2016-10/msg00330.html
http://lists.gnu.org/archive/html/emacs-devel/2016-10/msg00338.html
http://lists.gnu.org/archive/html/emacs-devel/2016-10/msg00339.html
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Message #32 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Paul Eggert <eggert <at> cs.ucla.edu>
> Date: Fri, 14 Oct 2016 23:09:50 -0500
>
> Does plain Emacs 24.5 build OK on Ubuntu 16.10?
>
> Which Emacs version ships with Ubuntu 16.10? Emacs 24.5 or 25.1? Either
> way, do Ubuntu's patches to Emacs seem relevant to your problem?
>
> Others are reporting similar problems. See:
>
> http://askubuntu.com/questions/836690/seg-fault-building-emacs25-in-ubuntu-16-10
But since a very similar problem happens with building our master
branch, I guess the Ubuntu's patches to Emacs are off the hook?
I'm guessing this is some problem with the new Ubuntu that is outside
Emacs, perhaps the kernel or the Binutils.
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Message #35 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Can someone please try building the emacs-25 branch on that version of
Ubuntu? I'd like to establish whether this problem should block the
release of Emacs 25.2.
Thanks.
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Message #38 received at 24682 <at> debbugs.gnu.org (full text, mbox):
[Message part 1 (text/plain, inline)]
16.10 has modified gcc to compile with -pie by default. That just must get
in the way of unexec.
Search "gcc" in https://wiki.ubuntu.com/YakketyYak/ReleaseNotes,
I have tried this successfully (both emacs-25 and master):
1. in the git workdir:
$ ./autogen.sh
2. in the build directory:
$ ...../configure CFLAGS=-no-pie <other configure options>
and the binaries built fine.
On topic, it would be nice if there was a string in the binary that told
one how the $(config.status --config), so one could (more) easily rebuild a
binary. Something like a function (emacs-configure-options).
This has worked with ASLR on (echo 2 > /proc/sys/kernel/randomize_va_space)
and with ASLR off (echo 0 > /proc/sys/kernel/randomize_va_space).
--César
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Message #41 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Eli Zaretskii <eliz <at> gnu.org> writes:
> Can someone please try building the emacs-25 branch on that version of
> Ubuntu? I'd like to establish whether this problem should block the
> release of Emacs 25.2.
Same problem with emacs-25 branch.
Next, I'll download the Emacs 25.1 tarball from gnu.org, and check
whether it builds.
> Thanks.
Best regards, Michael.
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Message #44 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Michael Albinus <michael.albinus <at> gmx.de> writes:
> Next, I'll download the Emacs 25.1 tarball from gnu.org, and check
> whether it builds.
As expected, also the same problem when compiling from the tarball
sources. Sounds like we must release Emacs 25.2, once this problem has
been fixed.
>> Thanks.
Best regards, Michael.
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Message #47 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Michael Albinus <michael.albinus <at> gmx.de>
> Cc: Óscar Fuentes <ofv <at> wanadoo.es>, theophilusx <at> gmail.com,
> 24682 <at> debbugs.gnu.org
> Date: Sat, 15 Oct 2016 09:01:02 +0200
>
> Eli Zaretskii <eliz <at> gnu.org> writes:
>
> > Can someone please try building the emacs-25 branch on that version of
> > Ubuntu? I'd like to establish whether this problem should block the
> > release of Emacs 25.2.
>
> Same problem with emacs-25 branch.
>
> Next, I'll download the Emacs 25.1 tarball from gnu.org, and check
> whether it builds.
Please also see if using -no-pie in CFLAGS solves the problem.
Thanks.
Added indication that bug 24682 blocks21966
Request was from
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(Sat, 15 Oct 2016 07:21:02 GMT)
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Message #52 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Cesar Quiroz <cesar.quiroz <at> gmail.com>
> Date: Fri, 14 Oct 2016 23:39:12 -0700
>
> 16.10 has modified gcc to compile with -pie by default. That just must get in the way of unexec.
>
> Search "gcc" in https://wiki.ubuntu.com/YakketyYak/ReleaseNotes,
>
> I have tried this successfully (both emacs-25 and master):
>
> 1. in the git workdir:
>
> $ ./autogen.sh
>
> 2. in the build directory:
>
> $ ...../configure CFLAGS=-no-pie <other configure options>
>
> and the binaries built fine.
Thanks. I guess this means we should inject -no-pie into CFLAGS on
affected systems?
> On topic, it would be nice if there was a string in the binary that told one how the $(config.status --config), so
> one could (more) easily rebuild a binary. Something like a function (emacs-configure-options).
Don't you have that in config.log?
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(Sat, 15 Oct 2016 07:25:02 GMT)
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Message #55 received at 24682 <at> debbugs.gnu.org (full text, mbox):
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Might be a 'red hearing', but there seems to be a number of GTK related
issues with Ubuntu 16.10. I have reverted back to 16.04 for now as I also
found I could not run the NVIDIA drivers either (caused seg faults in
gnome-shell). Can also confirm not just restricted to git versions - 25.1
tarball also fails to build.
On 15 October 2016 at 18:18, Michael Albinus <michael.albinus <at> gmx.de> wrote:
> Michael Albinus <michael.albinus <at> gmx.de> writes:
>
> > Next, I'll download the Emacs 25.1 tarball from gnu.org, and check
> > whether it builds.
>
> As expected, also the same problem when compiling from the tarball
> sources. Sounds like we must release Emacs 25.2, once this problem has
> been fixed.
>
> >> Thanks.
>
> Best regards, Michael.
>
--
regards,
Tim
--
Tim Cross
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Message #58 received at 24682 <at> debbugs.gnu.org (full text, mbox):
Eli Zaretskii <eliz <at> gnu.org> writes:
>> > Can someone please try building the emacs-25 branch on that version of
>> > Ubuntu? I'd like to establish whether this problem should block the
>> > release of Emacs 25.2.
>>
>> Same problem with emacs-25 branch.
>>
>> Next, I'll download the Emacs 25.1 tarball from gnu.org, and check
>> whether it builds.
>
> Please also see if using -no-pie in CFLAGS solves the problem.
I had the same idea :-) temacs dumps in the emacs-25 branch w/o
problems, using this CFLAGS option.
The rest of "make bootstrap" still runs. I will flag only, if there are
problems.
> Thanks.
Best regards, Michael.
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Message #61 received at submit <at> debbugs.gnu.org (full text, mbox):
Tim Cross <theophilusx <at> gmail.com> writes:
> Might be a 'red hearing', but there seems to be a number of GTK related
> issues with Ubuntu 16.10. I have reverted back to 16.04 for now as I also
> found I could not run the NVIDIA drivers either (caused seg faults in
> gnome-shell). Can also confirm not just restricted to git versions - 25.1
> tarball also fails to build.
This is unrelated to the Emacs bug we are discusssing here, isn't it? I
use Kubuntu and configure Emacs with Lucid and the bootstrap fails on
the same way.
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Message #64 received at 24682 <at> debbugs.gnu.org (full text, mbox):
On 10/15/2016 12:56 AM, Eli Zaretskii wrote:
> This is bug#24682, please follow up there.
configure.ac on emacs-25 knows about this problem, and attempts to build
Emacs with -nopie. Please investigate why this is not working on Ubuntu
16.10. I assume './configure' is outputting a string like "checking
whether gcc accepts -nopie... no"; why is that? Try looking in
config.log near the string "accepts -nopie".
As noted in configure.ac, this problem has occurred before; see
Bug#18784 and Bug#20338. Possibly we merely need to tweak configure.ac
to pacify Ubuntu's variant of GCC.
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Message #67 received at 24682 <at> debbugs.gnu.org (full text, mbox):
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-no-pie versus -nopie
There was something in the release notes about -no-pie being the standard
negation of -pie, while -nopie was introduced (by Debian?) to deal with the
issue.
Relevant snippet from config.log:
configure:31624: checking whether gcc accepts -nopie
configure:31644: gcc -o conftest -no-pie -nopie conftest.c >&5
gcc: error: unrecognized command line option '-nopie'; did you mean
'-no-pie'?
configure:31644: $? = 1
--César
On Sat, Oct 15, 2016 at 9:51 PM, Paul Eggert <eggert <at> cs.ucla.edu> wrote:
> On 10/15/2016 12:56 AM, Eli Zaretskii wrote:
>
>> This is bug#24682, please follow up there.
>>
>
> configure.ac on emacs-25 knows about this problem, and attempts to build
> Emacs with -nopie. Please investigate why this is not working on Ubuntu
> 16.10. I assume './configure' is outputting a string like "checking whether
> gcc accepts -nopie... no"; why is that? Try looking in config.log near the
> string "accepts -nopie".
>
> As noted in configure.ac, this problem has occurred before; see Bug#18784
> and Bug#20338. Possibly we merely need to tweak configure.ac to pacify
> Ubuntu's variant of GCC.
>
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Message #70 received at 24682 <at> debbugs.gnu.org (full text, mbox):
> From: Cesar Quiroz <cesar.quiroz <at> gmail.com>
> Date: Sat, 15 Oct 2016 22:31:46 -0700
> Cc: Michael Albinus <michael.albinus <at> gmx.de>, 24682 <at> debbugs.gnu.org,
> Óscar Fuentes <ofv <at> wanadoo.es>, Eli Zaretskii <eliz <at> gnu.org>,
> Tim Cross <theophilusx <at> gmail.com>
>
> -no-pie versus -nopie
>
> There was something in the release notes about -no-pie being the standard negation of -pie, while -nopie was
> introduced (by Debian?) to deal with the issue.
>
> Relevant snippet from config.log:
>
> configure:31624: checking whether gcc accepts -nopie
> configure:31644: gcc -o conftest -no-pie -nopie conftest.c >&5
> gcc: error: unrecognized command line option '-nopie'; did you mean '-no-pie'?
> configure:31644: $? = 1
I guess the fix, whatever it is, should be backported to the release
branch?
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Message #73 received at 24682 <at> debbugs.gnu.org (full text, mbox):
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Probably just clone the -nopie AC check macro with -no-pie, and just pass
whichever, if any, wins.
--César
On Sat, Oct 15, 2016 at 11:54 PM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> > From: Cesar Quiroz <cesar.quiroz <at> gmail.com>
> > Date: Sat, 15 Oct 2016 22:31:46 -0700
> > Cc: Michael Albinus <michael.albinus <at> gmx.de>, 24682 <at> debbugs.gnu.org,
> > Óscar Fuentes <ofv <at> wanadoo.es>, Eli Zaretskii <eliz <at> gnu.org>,
> > Tim Cross <theophilusx <at> gmail.com>
> >
> > -no-pie versus -nopie
> >
> > There was something in the release notes about -no-pie being the
> standard negation of -pie, while -nopie was
> > introduced (by Debian?) to deal with the issue.
> >
> > Relevant snippet from config.log:
> >
> > configure:31624: checking whether gcc accepts -nopie
> > configure:31644: gcc -o conftest -no-pie -nopie conftest.c >&5
> > gcc: error: unrecognized command line option '-nopie'; did you mean
> '-no-pie'?
> > configure:31644: $? = 1
>
> I guess the fix, whatever it is, should be backported to the release
> branch?
>
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Message #76 received at 24682 <at> debbugs.gnu.org (full text, mbox):
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Cesar Quiroz wrote:
> There was something in the release notes about -no-pie being the standard
> negation of -pie, while -nopie was introduced (by Debian?) to deal with the
> issue.
Which release notes?
I installed the attached into the Emacs master branch; does it fix the problem?
If so, I'll backport it to emacs-25 and ask you to test that.
[0001-Port-to-Ubuntu-16.10-which-needs-gcc-nopie.patch (text/x-diff, attachment)]
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Message #79 received at 24682 <at> debbugs.gnu.org (full text, mbox):
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--César
On Sun, Oct 16, 2016 at 4:56 PM, Paul Eggert <eggert <at> cs.ucla.edu> wrote:
> Cesar Quiroz wrote:
>
>> There was something in the release notes about -no-pie being the standard
>> negation of -pie, while -nopie was introduced (by Debian?) to deal with
>> the
>> issue.
>>
>
> Which release notes?
>
I meant 16.10: https://wiki.ubuntu.com/YakketyYak/ReleaseNotes, and from
there specifically:
https://wiki.ubuntu.com/SecurityTeam/PIE
> I installed the attached into the Emacs master branch; does it fix the
> problem? If so, I'll backport it to emacs-25 and ask you to test that.
>
Works for master; ready to test emacs-25.
For reference, I did a 'git clean -fdx' in the git workdir, autogen, and
then I configured the build area with
$ ./config.status --config
'--with-x-toolkit=gtk3' '--with-file-notification=yes' '--with-modules'
$
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Message #82 received at 24682 <at> debbugs.gnu.org (full text, mbox):
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I applied the patch to my local copy of emacs-25, and it built fine. Will
test the official port when available.
Going back to the master branch build, the log shows a warning, unrelated
to the -no-pie issue:
CC gmalloc.o
/work/emacs/master/src/gmalloc.c:1760:1: warning: no previous prototype for
‘hybrid_aligned_alloc’ [-Wmissing-prototypes]
hybrid_aligned_alloc (size_t alignment, size_t size)
^~~~~~~~~~~~~~~~~~~~
This is not happening in the emacs-25 branch. Maybe the conditional
compilation is hiding a prototype in master but not in emacs-25. I will
take another look, and report it tomorrow if I can confirm the difference.
--César
On Sun, Oct 16, 2016 at 8:04 PM, Cesar Quiroz <cesar.quiroz <at> gmail.com>
wrote:
>
>
> --César
>
> On Sun, Oct 16, 2016 at 4:56 PM, Paul Eggert <eggert <at> cs.ucla.edu> wrote:
>
>> Cesar Quiroz wrote:
>>
>>> There was something in the release notes about -no-pie being the standard
>>> negation of -pie, while -nopie was introduced (by Debian?) to deal with
>>> the
>>> issue.
>>>
>>
>> Which release notes?
>>
>
> I meant 16.10: https://wiki.ubuntu.com/YakketyYak/ReleaseNotes, and from
> there specifically:
>
> https://wiki.ubuntu.com/SecurityTeam/PIE
>
>
>> I installed the attached into the Emacs master branch; does it fix the
>> problem? If so, I'll backport it to emacs-25 and ask you to test that.
>>
>
> Works for master; ready to test emacs-25.
>
> For reference, I did a 'git clean -fdx' in the git workdir, autogen, and
> then I configured the build area with
>
> $ ./config.status --config
> '--with-x-toolkit=gtk3' '--with-file-notification=yes' '--with-modules'
> $
>
>
>
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(Mon, 17 Oct 2016 06:19:02 GMT)
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Message #87 received at 24682-done <at> debbugs.gnu.org (full text, mbox):
Cesar Quiroz wrote:
> I applied the patch to my local copy of emacs-25, and it built fine. Will
> test the official port when available.
Thanks, I have installed the patch into the emacs-25 branch and am marking this
bug as done.
Added tag(s) patch.
Request was from
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to
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(Mon, 17 Oct 2016 11:28:02 GMT)
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Message #92 received at 24682-done <at> debbugs.gnu.org (full text, mbox):
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Paul, thanks to you. I just rechecked after a pull, and all looks fine
still.
--César
On Sun, Oct 16, 2016 at 11:18 PM, Paul Eggert <eggert <at> cs.ucla.edu> wrote:
> Cesar Quiroz wrote:
>
>> I applied the patch to my local copy of emacs-25, and it built fine. Will
>> test the official port when available.
>>
>
> Thanks, I have installed the patch into the emacs-25 branch and am marking
> this bug as done.
>
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