Re: gcj/gdb in cross env

[FERANDELLE Pascal <pascal dot ferandelle at fr dot thalesgroup dot com>]

Andrew Haley a écrit :

> FERANDELLE Pascal writes:
>  > I build gcc/gcj 4.1.0 in cross env for target powerpc-linux, and did the same for gdb 6.4.
>
>  > As I have a "Segmentation fault" with an HelloWorld program written
>  > in Java, and compiled with powerpc-linux-gcj -g, I tried to launch
>  > powerpc-linux-gdb on the exec file, but an error occurred :
>  >
>  > Dwarf Error : wrong version in compilation unit header (is 99, should be 2) [in module HelloWorld]
>
> I don't understand this.
>
> You're not telling us what you are doing.  Where is gdb running?  On
> the host or the target?
>
> If we're going to be of any use to you, you must post full information
> about what you are doing.

Host
    powerpc-linux-gcj -g -o HW HW.java --main=HW --static

Target
    gdbserver host:2345 HW

Host
    powerpc-linux-gdb HW
    -> Dwarf Error ...
    under gdb : target remote vmpc:2345
    but after, no debug is possible (no symbol table, no stack, etc)

When I built gdb 6.4 for target powerpc-linux, I have to configure it with --disable-werror, because without that, the build stopped due to several warnings of "value computed is not used".

Pascal