gdb bug on AIX 5.3 64bit

[dot094]

 Hi.

I have a problem in use gdb


*- env*
 AIX 5.3 64bit
 IBM XL C/C++ Enterprise Edition for AIX, V9.0.
 gdb version 7.1
 export OBJECT_MODE=64
 export CC=xlc
 export CFLAGS="-g -q64"

 

*- solved some problem*
 
  1. compile...
  "rs6000-core.c", line 114.10: 1506-007 (S) "struct core_dump" is
undefined.
  "rs6000-core.c", line 127.10: 1506-007 (S) "struct vm_info" is undefined.
  < my action > remove option at 'bfd/Makefile' file : remove that
'-DAIX_CORE' (2 count)
  
  2. compile...
  xlc -c -g -q64 -DDEFAULT_INLINE=PSIM_INLINE_LOCALS    
-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN -DWITH_SMP=5             
-DHAVE_TERMIO_STRUCTURE -DHAVE_TERMIO_CLINE -DHAVE_DEVZERO     -I. -I.
-I./../../include -I../../bfd -I./../../bfd -I../../gdb -I./../../gdb 
-I./../../gdb/config -I../../intl -DHAVE_COMMON_FPU -I../common
-I./../common debug.c
  "words.h", line 81.9: 1506-166 (S) Definition of function natural64
requires parentheses.
  "words.h", line 81.19: 1506-276 (S) Syntax error: possible missing '{'?
  < my action > 'sim/ppc/words.h' file : remove '#ifdef __GNUC__' (line 65)
  
  3. compile...
  gdb compile error ....
  < my action > 'gdb/features/feature_to_c.sh' file : modify 'split($0,
line, "\n");' ( line 43)
  
  4. compile...
  gdb link error ptrace , ptracex undefined.....
  < my action > modify function :  ptrace -> ptrace64 , ptracex -> ptrace64
  (ptrace : aix-thread.c,inf-ptrace.c,rs6000-nat.c -- ptracex :
aix-thread.c)
  
  5. excute...
  excute gdb but trace infomation is nothing...
  < my action > 'gdb/rs6000-nat.c' file : modify '__ld_info32' ->
'__ld_info64'(line 69)
 
 
*- last status*
  command 'where' : trace infomation is no problem
  command 'print' or 'info locals' : have a problem..
   -> I debuged gdb program by dbx.
      breakpoint in shared library (.so) function.
      gdb program get another frame point ( current_frame is wrong frame
point...)
   
It is bug in gdb?

This sample is same locals info ( in_locals , temp ) at first and secend
breakpoint.

but first breakpoint have ( in_locals , temp ) , secend breakpoint have
( i_data , o_data )

 

- sample...

*(gdb01.cpp)*

40 bool gdb01::onInit( IRequest* request, IResponse* response )
41 {
42  int in_locals = 0;
43  char *temp = "444";
44  return true;
45 }

46
47 bool gdb01::perform( IRequest* request, IResponse* response )
48 {
49  gdb01Req* i_data = (gdb01Req*) request;
50  gdb01Res* o_data = (gdb01Res*) response;


*GDB*

_(gdb) b gdb01.cpp:42
_No source file named gdb01.cpp.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (gdb01.cpp:42) pending.
_(gdb) b gdb01.cpp:49_
No source file named gdb01.cpp.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 2 (gdb01.cpp:49) pending.
_(gdb) c
_Continuing.

Breakpoint 1, gdb01::onInit(nexcore::online::IRequest *,
nexcore::online::IResponse *) (
    this=0x110103890, request=0x11000de90, response=0x11000e090) at
gdb01.cpp:42
42      gdb01.cpp: 
        in gdb01.cpp
Current language:  auto
The current source language is "auto; currently c++".
_(gdb) info locals
_/in_locals = 150994944
temp = 0xfffffffffffcba0 <error reading variable>
/_(gdb) c
_Continuing.

Breakpoint 2, gdb01::perform(nexcore::online::IRequest *,
nexcore::online::IResponse *) (
    this=0x90000001344d38c, request=0x110103b71,
response=0xfffffffffffc7b0) at gdb01.cpp:50
50      in gdb01.cpp
_(gdb) info locals_
/in_locals = 1
temp = 0x11000de90 <error reading variable>
/(gdb)

 

 



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