Re: [openrisc] or32-uclinux-gdb : 'Found a function without a prologue at ....'

["Sung-taek Lim" <stlim76@hotmail.com>]

>From: Marko Mlinar <markom@opencores.org>
> > (gdb) info stack
> > #0  uart_send_char (ch=83 'S') at uartfunc.c:127
> > Found a function without a prologue at 0x00002448
> > Frame pc was at 0x0000245c
> > #1  0x245c in uart_send_char (ch=-62 '&#51680;) at uartfunc.c:126
> >
> > 'or32-uclinux-gdb' seems to use some pattern searching method
> > to find the function prologue which doesn't match the way
> > 'or32-uclinux-gcc' generates the prologue.
> > Has anyone tried this before?
>How did you compile your program? It should be with -g and without -Ox
>(frame support does not work for frameless functions)

Exactly with -g and without -Ox. (Though I didn't know -Ox makes functions
frameless... then is it impossible to trace back the stack of optimized
code like uClinux kernel?)

>
>Personally, I have not tryied it for a long time, since I was doing mostly 
>low
>level stuff.
>
>Marko
>
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