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Re: Using gdb with JEENI
- To: Jeremy Lin <chienyul at yahoo dot com>
- Subject: Re: Using gdb with JEENI
- From: Fernando Nasser <fnasser at cygnus dot com>
- Date: Fri, 19 Jan 2001 09:04:00 -0500
- CC: gdb at sourceware dot cygnus dot com
- Organization: Red Hat , Inc. - Toronto
- References: <firstname.lastname@example.org>
Jeremy Lin wrote:
> It is cygwin 1.1, I installed in in August 2000.
I am not completely sure about this specific Cygwin version, but people have
been getting good results with more recent versions. Maybe you should
try upgrading to a recent Cygwin snapshot.
> Jeremy Lin
> --- Fernando Nasser <email@example.com> wrote:
> > Which version of Cygwin are you using?
> > Jeremy Lin wrote:
> > >
> > > I have a problem using JEENI with GDB 5.0 debugging.
> > > JEENI FirmwareVersion:2.0
> > > Connected via serial port and RDI(tar rdi s=com2),
> > > I'm doing the eCos porting to our customize board based on
> > > Samsung KS32C50100 (ARM7TDMI core). Right now I'm debugging
> > > the ROM image which initialize the board. The problem is, for example,
> > > here is a sample instructions of the ROM image dump by gnu objdump:
> > > 00008060 <reset_vector>:
> > > 8060: e59f0458 ldr r0, [pc, #458]
> > > 8064: e5800000 str r0, [r0]
> > >
> > > 00008068 <warm_reset>:
> > > 8068: e3a00000 mov r0, #0 ; 0x0
> > > 806c: e5800040 str r0, [r0, #64]
> > > 8070: e59f144c ldr r1, [pc, #44c]
> > > 8074: e5912008 ldr r2, [r1, #8]
> > > 8078: e5802008 str r2, [r0, #8]
> > > 807c: e5912040 ldr r2, [r1, #64]
> > > 8080: e5802028 str r2, [r0, #40]
> > > 8084: ef000000 swi 0x00000000
> > >
> > > when I set a breakpoint"b *0x8070" then "continue", it breaks
> > > normally. But after that I type "stepi" to run next instruction.
> > > This message comes out and gdb was terminated:
> > >
> > > 0 [main] arm-elf-gdb 1003 handle_exceptions: Exception: \
> > > STATUS_ACCESS_VIOLATION
> > > 21532 [main] arm-elf-gdb 1003 stackdump: Dumping stack trace to
> > > arm-elf-gdb.exe.stack.dump
> > > Segmentation fault (core dump)
> > >
> > > This happens also when I set the 2nd breakpoint (for example, at 0x8080)
> > and
> > > enter "continue". So I can only set one breakpoint at a time...
> > > Does any one have the same problem?
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Get email at your own domain with Yahoo! Mail.
> > > http://personal.mail.yahoo.com/
> > --
> > Fernando Nasser
> > Red Hat - Toronto E-Mail: firstname.lastname@example.org
> > 2323 Yonge Street, Suite #300
> > Toronto, Ontario M4P 2C9
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
Red Hat - Toronto E-Mail: email@example.com
2323 Yonge Street, Suite #300
Toronto, Ontario M4P 2C9