Hi,
On Wed, Sep 18, 2013 at 8:37 PM, Pedro Alves <pal...@redhat.com> wrote: > On 09/12/2013 04:05 AM, Yue Lu wrote: > >> On Sat, Sep 7, 2013 at 2:53 AM, Pedro Alves <pal...@redhat.com> wrote: >>> This is what I meant: >>> https://sourceware.org/ml/gdb-patches/2013-09/msg00253.html >>> >>> I was thinking you'd wrap gnu_xfer_memory. >>> >> >> I have study your patch, > > Thanks. Did you try building gdb with it, and does the > resulting GDB still work? First thank you to tell me how to apply patch from email. I used webmail of gmail and directly copy patch from the email which often apply failed, then I had to patch line by line. Now I used mutt to save email to mbox file then apply it, life changed! Before you told me this, I never imaged this, so thanks! I have test your patch, seems need a tiny fix. This is just a spelling mistaken I think. diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c index 07fe603..bc37bb8 100644 --- a/gdb/gnu-nat.c +++ b/gdb/gnu-nat.c @@ -2493,14 +2493,14 @@ gnu_xfer_memory (gdb_byte *readbuf, const char *writebuf, { inf_debug (gnu_current_inf, "writing %s[%s] <-- %s", paddress (target_gdbarch (), memaddr), plongest (len), - host_address_to_string (myaddr)); + host_address_to_string (writebuf)); res = gnu_write_inferior (task, memaddr, writebuf, len); } else { inf_debug (gnu_current_inf, "reading %s[%s] --> %s", paddress (target_gdbarch (), memaddr), plongest (len), - host_address_to_string (myaddr)); + host_address_to_string (readbuf)); res = gnu_read_inferior (task, memaddr, readbuf, len); } if (res == 0) After add this change, the gdb can work. But I have found a little strange from the origin gdb. When I set a breakpoint, then I run the inferior, after hit the breakpoint, I just input next next until the inferior exit, then the gdb will complain this: [Inferior 1 (bogus thread id 0) exited normally] Thread-specific breakpoint -37 deleted - thread 4 is gone. Thread-specific breakpoint -38 deleted - thread 4 is gone. Thread-specific breakpoint -39 deleted - thread 4 is gone. Thread-specific breakpoint 0 deleted - thread 4 is gone. I am not sure why this will output or is reasonable. I got this output like this: $./gdb gdb $b main $r $n $n ... $q (quit the debugged gdb) -- Yue Lu (陆岳)
