Re: [Qemu-devel] RFC: fix run of 32 bits Linux executables on 64 bits targets

[Blue Swirl]

On 10/10/07, J. Mayer <address@hidden> wrote:
> Following the patches done for elfload32, it appeared to me that there
> were still problems that would prevent 32 bits executables to run on 64
> bits target in linux user mode emulation.
> First of all, the personality was never set to PER_LINUX32

It's set in elfload32.c, but I think your approach is better. The check for
elf_ex->e_ident[EI_CLASS] == ELFCLASS64
could be moved from elfload32.c.

> The second problem was that pointers used to set the values on the stack
> were still of target_ulong size, which lead 32 bits executable crash
> dereferencing NULL pointers as soon as they wanted to parse their
> arguments.

Nice, I was wondering why my test program crashed.