У меня есть файл core
со встроенного устройства Linux SH3 и GDB среды кросс-компиляции (sh3-linux-GDB) в моем хосте Linux.
Но у меня проблемы с загрузкой файла ядра с помощью gdb:
$ sh3-linux-gdb ./myprogram ./core
GNU gdb 6.3
Copyright 2004 Free Software Foundation, Inc.
...
This GDB was configured as "--host=i386-pc-linux-gnu --target=sh3-linux"...
GDB can't read core files on this machine.
(gdb)
Почему он не может прочитать файл ядра?
Есть ли способ прочитать основной файл из целевой системы в кросс-базе данных?
В целевой машине (SH3-linux) есть gdbserver, но нет самого gdb.
Я могу выполнить отладку во время выполнения процессов целевой машины с gdbserver
и sh3-linux-gdb
, поэтому sh3-linux-gdb
должен быть правильно скомпилирован.
EDIT:
запрашивается дамп readelf:
[build]$ sh3-linux-readelf -a core
ELF Header:
Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: CORE (Core file)
Machine: Renesas / SuperH SH
Version: 0x1
Entry point address: 0x0
Start of program headers: 52 (bytes into file)
Start of section headers: 0 (bytes into file)
Flags: 0x0
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 51
Size of section headers: 0 (bytes)
Number of section headers: 0
Section header string table index: 0
There are no sections in this file.
There are no sections in this file.
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
NOTE 0x000694 0x00000000 0x00000000 0x00200 0x00000 0
LOAD 0x001000 0x00400000 0x00000000 0x00000 0x01000 R E 0x1000
----- several boring lines removed -----
LOAD 0x05a000 0x29952000 0x00000000 0x01000 0x01000 RW 0x1000
LOAD 0x05b000 0x7be48000 0x00000000 0x15000 0x15000 RWE 0x1000
There is no dynamic section in this file.
There are no relocations in this file.
There are no unwind sections in this file.
No version information found in this file.
Notes at offset 0x00000694 with length 0x00000200:
Owner Data size Description
CORE 0x000000a8 NT_PRSTATUS (prstatus structure)
CORE 0x0000007c NT_PRPSINFO (prpsinfo structure)
CORE 0x000000a0 NT_AUXV (auxiliary vector)
[build]$
EDIT2: Та же проблема с опцией --core
:
$ sh3-linux-gdb ./myprogram --core=./core
GNU gdb 6.3
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "--host=i386-pc-linux-gnu --target=sh3-linux"...RUN GDB INIT
GDB can't read core files on this machine.
(gdb)