Re: [Qemu-devel] [PATCH v3] The m68k gdbstub SR reg request doesnt include Condition-Codes

[Laurent Vivier <laurent@vivier.eu>]

Le 09/06/2019 à 12:51, Lucien Murray-Pitts a écrit :
> The register request via gdbstub would return the SR part
> which contains the Trace/Master/IRQ state flags, but
> would be missing the CR (Condition Register) state bits.
> 
> This fix adds this support by merging them in the m68k
> specific gdbstub handler m68k_cpu_gdb_read_register for SR register.
> 
> Signed-off-by: Lucien Murray-Pitts <lucienmp.qemu@gmail.com>
> ---
> 
> Notes:
>     v1->v2
>        - removed my superfluous braces
>        - slightly amended the commit message
>     
>     v2->v3
>        - removed my incorrect use of code block in a switch
> 
>  target/m68k/gdbstub.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/target/m68k/gdbstub.c b/target/m68k/gdbstub.c
> index fd2bb46c42..6e7f3b8980 100644
> --- a/target/m68k/gdbstub.c
> +++ b/target/m68k/gdbstub.c
> @@ -36,7 +36,8 @@ int m68k_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
>      } else {
>          switch (n) {
>          case 16:
> -            return gdb_get_reg32(mem_buf, env->sr);
> +            /* SR is made of SR+CCR, CCR is many 1bit flags so uses helper */
> +            return gdb_get_reg32(mem_buf, env->sr | cpu_m68k_get_ccr(env));
>          case 17:
>              return gdb_get_reg32(mem_buf, env->pc);
>          }
> 

Reviewed-by: Laurent Vivier <laurent@vivier.eu>