Re: [PATCH] gdbserver: ARM: add support for uclinux

[Pedro Alves <palves@redhat.com>]

On 04/13/2012 10:07 AM, Will Deacon wrote:

> When debugging a uclinux target, it is necessary to retrieve the text
> and data offsets of the running program in order for symbol resolution
> to work correctly.
> 
> This patch defines PT_{TEXT,DATA,TEXT_END}_ADDR for ARM, which can be
> issued as `magic' addresses to the PTRACE_PEEKUSER request in order to
> retrieve the child offsets.


Is this for older kernels?  I see these defined in
arch/arm/include/asm/ptrace.h in current mainline.

Anyway, looks fine.

> ---
> 
> 2012-04-13  Will Deacon  <will.deacon@arm.com>
> 
> 	* linux-low.c: Define PT_TEXT_ADDR, PT_TEXT_END_ADDR and
> 	PT_DATA_ADDR for ARM targets.
> 
>  gdb/gdbserver/linux-low.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
> index 043451d..c4b52e7 100644
> --- a/gdb/gdbserver/linux-low.c
> +++ b/gdb/gdbserver/linux-low.c
> @@ -4766,6 +4766,10 @@ linux_stopped_data_address (void)
>  #define PT_TEXT_ADDR     (0x10000*4)
>  #define PT_DATA_ADDR     (0x10004*4)
>  #define PT_TEXT_END_ADDR (0x10008*4)
> +#elif defined(__arm__)
> +#define PT_TEXT_ADDR 0x10000
> +#define PT_DATA_ADDR 0x10004
> +#define PT_TEXT_END_ADDR 0x10008
>  #endif
>  
>  /* Under uClinux, programs are loaded at non-zero offsets, which we need



-- 
Pedro Alves