From: Petr Hracek <phracek@redhat.com>
To: 20614@debbugs.gnu.org
Subject: bug#20614: Segmentation fault when building on Power8 Little Endian
Date: Thu, 24 Sep 2015 13:04:30 +0200 [thread overview]
Message-ID: <5603D8BE.10300@redhat.com> (raw)
In-Reply-To: <83wpvhjpdd.fsf@gnu.org>
On 09/23/2015 02:23 PM, Eli Zaretskii wrote:
>> Cc: 20614@debbugs.gnu.org
>> From: Petr Hracek <phracek@redhat.com>
>> Date: Wed, 23 Sep 2015 14:11:51 +0200
>>
>>> If you run Emacs under GDB, you don't need any traces: GDB allows to
>>> look at variables without any tracing code.
>> I will investigate is a bit more.
>> How to call dump when emacs or temacs is buildup?
>> Machine is already prepared.
>> I have seen some code in loadup.el lisp file and would like to do it
>> from command line.
> Like this:
>
> $ cd src
> $ gdb ./temacs
> (gdb) r --batch --load loadup bootstrap
>
> (This uses the command that failed.)
When the dumping failed with message "Program segment above .bss" then I
have add a some debug info. Hopefully It helps.
Dumping under the name emacs
Looking for .bss - found .interp
Looking for .bss - found .note.ABI-tag
Looking for .bss - found .note.gnu.build-id
Looking for .bss - found .gnu.hash
Looking for .bss - found .dynsym
Looking for .bss - found .dynstr
Looking for .bss - found .gnu.version
Looking for .bss - found .gnu.version_r
Looking for .bss - found .rela.toc
Looking for .bss - found .rela.plt
Looking for .bss - found .init
Looking for .bss - found .text
Looking for .bss - found .fini
Looking for .bss - found .rodata
Looking for .bss - found .eh_frame_hdr
Looking for .bss - found .eh_frame
Looking for .bss - found .data.rel.ro
Looking for .bss - found .dynamic
Looking for .bss - found .got
Looking for .bss - found .plt
Looking for .bss - found .data
Looking for .bss - found .bss
Looking for .sbss - found .interp
Looking for .sbss - found .note.ABI-tag
Looking for .sbss - found .note.gnu.build-id
Looking for .sbss - found .gnu.hash
Looking for .sbss - found .dynsym
Looking for .sbss - found .dynstr
Looking for .sbss - found .gnu.version
Looking for .sbss - found .gnu.version_r
Looking for .sbss - found .rela.toc
Looking for .sbss - found .rela.plt
Looking for .sbss - found .init
Looking for .sbss - found .text
Looking for .sbss - found .fini
Looking for .sbss - found .rodata
Looking for .sbss - found .eh_frame_hdr
Looking for .sbss - found .eh_frame
Looking for .sbss - found .data.rel.ro
Looking for .sbss - found .dynamic
Looking for .sbss - found .got
Looking for .sbss - found .plt
Looking for .sbss - found .data
Looking for .sbss - found .bss
Looking for .sbss - found .comment
Looking for .sbss - found .debug_aranges
Looking for .sbss - found .debug_info
Looking for .sbss - found .debug_abbrev
Looking for .sbss - found .debug_line
Looking for .sbss - found .debug_str
Looking for .sbss - found .debug_loc
Looking for .sbss - found .debug_ranges
Looking for .sbss - found .shstrtab
Looking for .sbss - found .symtab
Looking for .sbss - found .strtab
Looking for .plt - found .interp
Looking for .plt - found .note.ABI-tag
Looking for .plt - found .note.gnu.build-id
Looking for .plt - found .gnu.hash
Looking for .plt - found .dynsym
Looking for .plt - found .dynstr
Looking for .plt - found .gnu.version
Looking for .plt - found .gnu.version_r
Looking for .plt - found .rela.toc
Looking for .plt - found .rela.plt
Looking for .plt - found .init
Looking for .plt - found .text
Looking for .plt - found .fini
Looking for .plt - found .rodata
Looking for .plt - found .eh_frame_hdr
Looking for .plt - found .eh_frame
Looking for .plt - found .data.rel.ro
Looking for .plt - found .dynamic
Looking for .plt - found .got
Looking for .plt - found .plt
Looking for .data - found .interp
Looking for .data - found .note.ABI-tag
Looking for .data - found .note.gnu.build-id
Looking for .data - found .gnu.hash
Looking for .data - found .dynsym
Looking for .data - found .dynstr
Looking for .data - found .gnu.version
Looking for .data - found .gnu.version_r
Looking for .data - found .rela.toc
Looking for .data - found .rela.plt
Looking for .data - found .init
Looking for .data - found .text
Looking for .data - found .fini
Looking for .data - found .rodata
Looking for .data - found .eh_frame_hdr
Looking for .data - found .eh_frame
Looking for .data - found .data.rel.ro
Looking for .data - found .dynamic
Looking for .data - found .got
Looking for .data - found .plt
Looking for .data - found .data
old_bss_index 22
old_bss_addr 102b0000
old_bss_size 89798
old_bss_offset 2a0000
new_bss_addr 115d0000
new_data2_addr 102b0000
new_data2_size 1320000
new_data2_offset 2a0000
new_data2_incr 1320000
Old section offset da1ac8
Old section count 34
New section offset 20c1ac8
New section count 35
new_file_h->e_phnum 9
old_sbss_index ffffffff
old_bss_addr 102b0000
alignment 10
NEW_PROGRAM_H (n).p_vaddr 102af638
NEW_PROGRAM_H (n).p_filesz 9c8
(OLD_SECTION_H (old_bss_index)).sh_addralign 10
old_sbss_index ffffffff
old_bss_addr 102b0000
alignment 10
NEW_PROGRAM_H (n).p_vaddr 0
NEW_PROGRAM_H (n).p_filesz 0
(OLD_SECTION_H (old_bss_index)).sh_addralign 10
old_sbss_index ffffffff
old_bss_addr 102b0000
alignment 10
NEW_PROGRAM_H (n).p_vaddr 10269510
NEW_PROGRAM_H (n).p_filesz 73cc
(OLD_SECTION_H (old_bss_index)).sh_addralign 10
old_sbss_index ffffffff
old_bss_addr 102b0000
alignment 10
NEW_PROGRAM_H (n).p_vaddr 1000024c
NEW_PROGRAM_H (n).p_filesz 44
(OLD_SECTION_H (old_bss_index)).sh_addralign 10
old_sbss_index ffffffff
old_bss_addr 102b0000
alignment 10
NEW_PROGRAM_H (n).p_vaddr 102afa68
NEW_PROGRAM_H (n).p_filesz 440
(OLD_SECTION_H (old_bss_index)).sh_addralign 10
old_sbss_index ffffffff
old_bss_addr 102b0000
alignment 10000
NEW_PROGRAM_H (n).p_vaddr 102af638
NEW_PROGRAM_H (n).p_filesz 2c9756
(OLD_SECTION_H (old_bss_index)).sh_addralign 10
emacs: Program segment above .bss in
/home/phracek/rpmbuild/BUILD/emacs-24.3/build-gtk/src/temacs
Some useful information taken by command readelf:
readelf -h ./temacs
ELF Header:
Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
Class: ELF64
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: PowerPC64
Version: 0x1
Entry point address: 0x100184f0
Start of program headers: 64 (bytes into file)
Start of section headers: 14289272 (bytes into file)
Flags: 0x2, abiv2
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 9
Size of section headers: 64 (bytes)
Number of section headers: 34
Section header string table index: 31
readelf -l ./temacs
Elf file type is EXEC (Executable file)
Entry point 0x100184f0
There are 9 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
PHDR 0x0000000000000040 0x0000000010000040 0x0000000010000040
0x00000000000001f8 0x00000000000001f8 R E 8
INTERP 0x0000000000000238 0x0000000010000238 0x0000000010000238
0x0000000000000011 0x0000000000000011 R 1
[Requesting program interpreter: /lib64/ld64.so.2]
LOAD 0x0000000000000000 0x0000000010000000 0x0000000010000000
0x000000000029e6d8 0x000000000029e6d8 R E 10000
LOAD 0x000000000029f640 0x00000000102af640 0x00000000102af640
0x00000000002c974e 0x0000000000350e90 RW 10000
DYNAMIC 0x000000000029fa70 0x00000000102afa70 0x00000000102afa70
0x0000000000000440 0x0000000000000440 RW 8
NOTE 0x000000000000024c 0x000000001000024c 0x000000001000024c
0x0000000000000044 0x0000000000000044 R 4
GNU_EH_FRAME 0x0000000000268fe0 0x0000000010268fe0 0x0000000010268fe0
0x00000000000073cc 0x00000000000073cc R 4
GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 RW 10
GNU_RELRO 0x000000000029f640 0x00000000102af640 0x00000000102af640
0x00000000000009c0 0x00000000000009c0 R 1
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .interp .note.ABI-tag .note.gnu.build-id .gnu.hash .dynsym
.dynstr .gnu.version .gnu.version_r .rela.toc .rela.plt .init .text
.fini .rodata .eh_frame_hdr .eh_frame
03 .data.rel.ro .dynamic .got .plt .data .bss
04 .dynamic
05 .note.ABI-tag .note.gnu.build-id
06 .eh_frame_hdr
07
08 .data.rel.ro .dynamic .got
readelf -S ./temacs
There are 34 section headers, starting at offset 0xda0978:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .interp PROGBITS 0000000010000238 00000238
0000000000000011 0000000000000000 A 0 0 1
[ 2] .note.ABI-tag NOTE 000000001000024c 0000024c
0000000000000020 0000000000000000 A 0 0 4
[ 3] .note.gnu.build-i NOTE 000000001000026c 0000026c
0000000000000024 0000000000000000 A 0 0 4
[ 4] .gnu.hash GNU_HASH 0000000010000290 00000290
00000000000000dc 0000000000000000 A 5 0 8
[ 5] .dynsym DYNSYM 0000000010000370 00000370
00000000000063f0 0000000000000018 A 6 1 8
[ 6] .dynstr STRTAB 0000000010006760 00006760
0000000000004ae9 0000000000000000 A 0 0 1
[ 7] .gnu.version VERSYM 000000001000b24a 0000b24a
0000000000000854 0000000000000002 A 5 0 2
[ 8] .gnu.version_r VERNEED 000000001000baa0 0000baa0
0000000000000160 0000000000000000 A 6 10 8
[ 9] .rela.toc RELA 000000001000bc00 0000bc00
0000000000000330 0000000000000018 A 5 0 8
[10] .rela.plt RELA 000000001000bf30 0000bf30
00000000000060d8 0000000000000018 A 5 20 8
[11] .init PROGBITS 0000000010012020 00012020
000000000000004c 0000000000000000 AX 0 0 32
[12] .text PROGBITS 0000000010012080 00012080
0000000000237140 0000000000000000 AX 0 0 32
[13] .fini PROGBITS 00000000102491c0 002491c0
0000000000000024 0000000000000000 AX 0 0 4
[14] .rodata PROGBITS 00000000102491e8 002491e8
000000000001fdf8 0000000000000000 A 0 0 8
[15] .eh_frame_hdr PROGBITS 0000000010268fe0 00268fe0
00000000000073cc 0000000000000000 A 0 0 4
[16] .eh_frame PROGBITS 00000000102703b0 002703b0
000000000002e328 0000000000000000 A 0 0 8
[17] .data.rel.ro PROGBITS 00000000102af640 0029f640
0000000000000430 0000000000000000 WA 0 0 8
[18] .dynamic DYNAMIC 00000000102afa70 0029fa70
0000000000000440 0000000000000010 WA 6 0 8
[19] .got PROGBITS 00000000102afeb0 0029feb0
0000000000000150 0000000000000008 WA 0 0 8
[20] .plt NOBITS 00000000102b0000 002a0000
0000000000002058 0000000000000008 WA 0 0 8
[21] .data PROGBITS 00000000102b2058 002a2058
00000000002c6d36 0000000000000000 WA 0 0 8
[22] .bss NOBITS 0000000010578d90 00568d8e
0000000000087740 0000000000000000 WA 0 0 16
[23] .comment PROGBITS 0000000000000000 00568d8e
0000000000000058 0000000000000001 MS 0 0 1
[24] .debug_aranges PROGBITS 0000000000000000 00568de6
0000000000001350 0000000000000000 0 0 1
[25] .debug_info PROGBITS 0000000000000000 0056a136
00000000003aeadb 0000000000000000 0 0 1
[26] .debug_abbrev PROGBITS 0000000000000000 00918c11
0000000000021b05 0000000000000000 0 0 1
[27] .debug_line PROGBITS 0000000000000000 0093a716
000000000007d970 0000000000000000 0 0 1
[28] .debug_str PROGBITS 0000000000000000 009b8086
000000000004911a 0000000000000001 MS 0 0 1
[29] .debug_loc PROGBITS 0000000000000000 00a011a0
00000000003277c9 0000000000000000 0 0 1
[30] .debug_ranges PROGBITS 0000000000000000 00d28969
0000000000077ec0 0000000000000000 0 0 1
[31] .shstrtab STRTAB 0000000000000000 00da0829
0000000000000148 0000000000000000 0 0 1
[32] .symtab SYMTAB 0000000000000000 00da11f8
0000000000037bc0 0000000000000018 33 5415 8
[33] .strtab STRTAB 0000000000000000 00dd8db8
000000000002e23b 0000000000000000 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
--
Petr Hracek
Software Engineer
Developer Experience
Red Hat, Inc
Mob: +420777056169
email: phracek@redhat.com
next prev parent reply other threads:[~2015-09-24 11:04 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 7:56 bug#20614: Segmentation fault when building on Power8 Little Endian Petr Hracek
2015-05-20 14:45 ` Eli Zaretskii
2015-05-20 16:12 ` Glenn Morris
2015-05-21 12:55 ` Petr Hracek
2015-07-13 11:27 ` Petr Hracek
2015-07-13 13:16 ` Andreas Schwab
2015-07-14 7:52 ` Petr Hracek
2015-07-14 8:14 ` Andreas Schwab
2015-09-16 11:28 ` Petr Hracek
2015-09-22 10:17 ` Petr Hracek
2015-09-23 8:06 ` Petr Hracek
2015-09-23 9:34 ` Eli Zaretskii
2015-09-23 11:00 ` Petr Hracek
2015-09-23 11:14 ` Eli Zaretskii
2015-09-23 12:11 ` Petr Hracek
2015-09-23 12:23 ` Eli Zaretskii
2015-09-24 11:04 ` Petr Hracek [this message]
2015-09-24 15:32 ` Eli Zaretskii
2015-09-24 17:56 ` Petr Hracek
2015-09-26 7:58 ` Eli Zaretskii
2015-09-30 10:39 ` Petr Hracek
2015-10-01 7:43 ` Eli Zaretskii
2015-10-01 8:46 ` Petr Hracek
2015-10-01 11:44 ` Petr Hracek
2015-10-01 11:53 ` Petr Hracek
2015-10-01 12:22 ` Eli Zaretskii
2015-10-01 14:05 ` Petr Hracek
2015-10-01 16:01 ` Eli Zaretskii
2015-10-02 8:36 ` Petr Hracek
2015-10-02 8:49 ` Eli Zaretskii
2015-10-02 12:58 ` Petr Hracek
2015-10-02 13:46 ` Eli Zaretskii
2015-10-05 7:40 ` Petr Hracek
2015-10-05 8:27 ` Eli Zaretskii
2015-10-05 9:16 ` Petr Hracek
2015-10-05 9:39 ` Eli Zaretskii
2015-10-05 11:23 ` Petr Hracek
2015-10-05 11:40 ` Eli Zaretskii
2015-10-05 14:07 ` Petr Hracek
2015-10-05 16:52 ` Eli Zaretskii
2015-10-06 8:41 ` Petr Hracek
2015-10-06 11:52 ` Petr Hracek
2015-10-06 14:55 ` Eli Zaretskii
2015-10-07 8:17 ` Petr Hracek
2015-10-07 10:56 ` YAMAMOTO Mitsuharu
2015-10-07 12:26 ` Petr Hracek
2015-10-08 0:54 ` YAMAMOTO Mitsuharu
2015-10-08 13:27 ` Jaromir Capik
2015-10-10 1:40 ` YAMAMOTO Mitsuharu
2015-10-10 15:44 ` Andreas Schwab
2015-10-13 7:30 ` Petr Hracek
2015-10-13 8:30 ` Andreas Schwab
2015-10-16 15:24 ` Jaromir Capik
2015-10-19 7:20 ` Andreas Schwab
2015-09-23 12:10 ` Petr Hracek
2015-09-23 12:21 ` Eli Zaretskii
2015-09-23 13:10 ` Petr Hracek
2015-09-23 13:38 ` Petr Hracek
2015-09-23 13:57 ` Eli Zaretskii
2015-09-23 17:25 ` Glenn Morris
2015-09-23 17:47 ` Glenn Morris
2015-09-29 8:15 ` Florian Weimer
2015-07-13 12:17 ` bug#20614: Segmentation fault when building on Power8 Little Endian (ppc64le) Petr Hracek
2015-11-17 1:59 ` bug#20614: alignment problem with recent Emacs unexelf.c changes Paul Eggert
2015-11-17 9:03 ` Alan Modra
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