Re: Build failure: src/gdb ChangeLog record.c gcore.c gcore.h

[Hui Zhu <teawater@gmail.com>]

$ ./gdb ./a.exe
GNU gdb (GDB) 7.0.50.20091025-cvs
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-cygwin".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/hzhu/gdb/bgdbcygwin/gdb/a.exe...done.
Setting up the environment for debugging gdb.
Function "internal_error" not defined.
Make breakpoint pending on future shared library load? (y or [n])
[answered N; input not from terminal]
Function "info_command" not defined.
Make breakpoint pending on future shared library load? (y or [n])
[answered N; input not from terminal]
/home/hzhu/gdb/bgdbcygwin/gdb/.gdbinit:8: Error in sourced command file:
No breakpoint number 0.
(gdb) start
Temporary breakpoint 1 at 0x4010b0: file
/cygdrive/c/study/gcc/gdb/rec/1.c, line 20.
Starting program: /home/hzhu/gdb/bgdbcygwin/gdb/a.exe
[New Thread 3820.0x600]
[New Thread 3820.0x14c]
[New Thread 3820.0xf94]

Temporary breakpoint 1, main () at /cygdrive/c/study/gcc/gdb/rec/1.c:20
20             int     b = 0;
(gdb) gcore
Can't create a corefile
(gdb)

  /* An external target method must build the notes section.  */
  note_data = target_make_corefile_notes (obfd, &note_size);

It's target depend.

It just a error output, better than build error.

Thanks,
Hui



On Sun, Oct 25, 2009 at 09:19, Michael Snyder <msnyder@vmware.com> wrote:
> Hui Zhu wrote:
>>
>> I try in cygwin with:
>> configure --disable-sid --disable-rda --disable-binutils --disable-gas
>> --disable-ld --disable-gprof --enable-targets=all --enable-64-bits-bfd
>> CFLAGS=-g
>> configure --disable-sid --disable-rda --disable-binutils --disable-gas
>> --disable-ld --disable-gprof
>>
>>  Build is OK.
>>
>> $ ./gdb
>> GNU gdb (GDB) 7.0.50.20091025-cvs
>> Copyright (C) 2009 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later
>> <http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>> and "show warranty" for details.
>> This GDB was configured as "i686-pc-cygwin".
>> For bug reporting instructions, please see:
>> <http://www.gnu.org/software/gdb/bugs/>.
>> Setting up the environment for debugging gdb.
>> No symbol table is loaded.  Use the "file" command.
>> Make breakpoint pending on future shared library load? (y or [n])
>> [answered N; input not from terminal]
>> No symbol table is loaded.  Use the "file" command.
>> Make breakpoint pending on future shared library load? (y or [n])
>> [answered N; input not from terminal]
>> /home/hzhu/gdb/bgdbcygwin/gdb/.gdbinit:8: Error in sourced command file:
>> No breakpoint number 0.
>> (gdb)
>>
>> I think in gcore.o, there is not some host-special code.  Just some target
>> hook.
>> I suggest mv gcore.o to makefile.in and add code to check return value
>> in record.o when call gcore function.
>> What do you think about it?
>
> Can't be done.  gcore depends on some callbacks that
> are not implemented for cygwin.
>