[PATCH 4/4] ntdll: Implement arm64 sigcontext access for macOS

[Martin Storsjö]

On Fri, 14 Aug 2020, Chip Davis wrote:

> August 14, 2020 6:55 AM, "Martin Storsjo" <martin at martin.st> wrote:
>
>> diff --git a/dlls/ntdll/unix/signal_arm64.c b/dlls/ntdll/unix/signal_arm64.c
>> index cc34690f96..f1c6cdc5fa 100644
>> --- a/dlls/ntdll/unix/signal_arm64.c
>> +++ b/dlls/ntdll/unix/signal_arm64.c
>> @@ -299,7 +313,11 @@ static void save_context( CONTEXT *context, const ucontext_t *sigcontext )
>>      context->Sp = SP_sig(sigcontext); /* Stack pointer */
>>      context->Pc = PC_sig(sigcontext); /* Program Counter */
>>      context->Cpsr = PSTATE_sig(sigcontext); /* Current State Register */
>> +#ifdef linux
>>      for (i = 0; i <= 28; i++) context->u.X[i] = REGn_sig( i, sigcontext );
>> +#elif defined(__APPLE__)
>> +    for (i = 0; i <= 28; i++) context->u.X[i] = sigcontext->uc_mcontext->__ss.__x[i];
>
> Or, you could define REGn_sig() for macOS. Then you wouldn't need a lot of these #ifdefs.

Thanks, yes, that does indeed help reduce this patch quite a bit.

// Martin