Mailinglist Archive: opensuse (1785 mails)

[Christoph Bartoschek <bartoschek@xxxxxxxxxxxxxx>]

Am 27.11.2011 22:19, schrieb Rich Coe:
> On Sun, 27 Nov 2011 21:13:05 +0100
> Christoph Bartoschek<bartoschek@xxxxxxxxxxxxxx>  wrote:
> > Am 27.11.2011 16:40, schrieb Rich Coe:
> > > On Sat, 26 Nov 2011 15:04:43 -0600
> > > Rich Coe<rcoe@xxxxxxxxx>   wrote:
> > > > On Sat, 26 Nov 2011 18:55:43 +0100
> > I've set a breakpoint on register_printf_function. There is no call to it.
>
>      It might also be calling register_printf_specifier()
>      which is an alias for register_printf_function(), or
>      calling __register_printf_specifier() which is the real entry point.
>
> > The tables you mentioned in an earlier post seem to be empty:
>
>      You're only printing the zero-th element of the table.
>      Since they are allocated, they are being used.
>
> > (gdb) p __printf_function_table[0]
> > $4 = (printf_function *) 0
> > (gdb) p __printf_modifier_table[0]
> > $5 = (struct printf_modifier_record *) 0x0
> > (gdb) p __printf_va_arg_table[0]
> > $6 = (printf_va_arg_function *) 0x7fffcf1ab0b0
>
> > Is there anything else I could try?  Besides recompiling glibc and the
> > program I use I think I could add debug statements in any code.
>
> You could override the __register_printf_specifier() without recompiling
> glibc.  I'll see if I can make a working example.
>
> Rich

I see one four calls to __register_printf_specifier:


#0  __register_printf_specifier (spec=102, converter=0x7fffcf1ab060, 
arginfo=0x7fffcf1aafe0) at reg-printf.c:46
#1  0x00007fffcf1928a2 in ?? () from /usr/lib64/libquadmath.so.0

#0  __register_printf_specifier (spec=101, converter=0x7fffcf1ab060, 
arginfo=0x7fffcf1aafe0) at reg-printf.c:46
#1  0x00007fffcf1928d2 in ?? () from /usr/lib64/libquadmath.so.0

#0  __register_printf_specifier (spec=69, converter=0x7fffcf1ab060, 
arginfo=0x7fffcf1aafe0) at reg-printf.c:46
#1  0x00007fffcf1928ea in ?? () from /usr/lib64/libquadmath.so.0

#0  __register_printf_specifier (spec=103, converter=0x7fffcf1ab060, 
arginfo=0x7fffcf1aafe0) at reg-printf.c:46
#1  0x00007fffcf192902 in ?? () from /usr/lib64/libquadmath.so.0

Christoph
--
To unsubscribe, e-mail: opensuse+unsubscribe@xxxxxxxxxxxx
To contact the owner, e-mail: opensuse+owner@xxxxxxxxxxxx