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Re: generic error with a statically linked multithreaded program
On Thu, 5 Apr 2007 10:45:33 -0400, Daniel Jacobowitz <drow@false.org> wrote:
> > Thank you.
> > Is it http://sources.redhat.com/bugzilla/show_bug.cgi?id=2696, right?
> >
> > If so, the gdb patch mentioned in it is already merged in gdb 6.6?
>
> I think so, but I don't remember for sure.
I tried the libc patch on MIPS and it works fine with gdbserver.
But with MIPS native gdb, I got a little bit different error message:
thread_get_info_callback: cannot get thread info: generic error
Do you have any thoughts on this error?
# ./gdb ./hello
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This GDB was configured as "mips-linux"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) set debug lin-lwp 1
(gdb) run
Starting program: /hello
LLW: waitpid 741 received Trace/breakpoint trap (stopped)
LLW: Candidate event Trace/breakpoint trap (stopped) in process 741.
LLTA: PTRACE_PEEKUSER process 741, 0, 0 (OK)
LLW: trap_ptid is process 741.
LLR: Preparing to resume process 741, 0, inferior_ptid process 741
LLR: PTRACE_CONT process 741, 0 (resume event thread)
LLW: waitpid 741 received Trace/breakpoint trap (stopped)
LLW: Candidate event Trace/breakpoint trap (stopped) in process 741.
LLTA: PTRACE_PEEKUSER process 741, 0, 0 (OK)
LLW: trap_ptid is process 741.
[Thread debugging using libthread_db enabled]
LLR: Preparing to resume process 741, 0, inferior_ptid process 741
LLR: PTRACE_CONT process 741, 0 (resume event thread)
LLW: waitpid 741 received Trace/breakpoint trap (stopped)
LLW: Candidate event Trace/breakpoint trap (stopped) in process 741.
LLTA: PTRACE_PEEKUSER process 741, 0, 0 (OK)
LLW: trap_ptid is process 741.
thread_get_info_callback: cannot get thread info: generic error
(gdb) quit
The program is running. Exit anyway? (y or n) y
KC: PTRACE_KILL process 741, 0, 0 (OK)
KWC: wait process 741 received unk.
#
And gdb did not hang in this case. No problem with dynamically-linked
program.
---
Atsushi Nemoto