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ntdll: Fix arm64 sigcontext access for darwin. 

Signed-off-by: Martin Storsjo <martin@martin.st>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Martin Storsjo 2020-08-14 21:56:45 +03:00 committed by Alexandre Julliard
parent 7f8224411c
commit 8f3bd63b52
1 changed files with 31 additions and 0 deletions
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31
dlls/ntdll/unix/signal_arm64.c
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@ -110,6 +110,24 @@ static DWORD64 get_fault_esr( ucontext_t *sigcontext )
return 0;
}
#elif defined(__APPLE__)
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext->__ss.__ ## reg_name)
# define REGn_sig(reg_num, context) ((context)->uc_mcontext->__ss.__x[reg_num])
/* Special Registers access */
# define SP_sig(context) REG_sig(sp, context) /* Stack pointer */
# define PC_sig(context) REG_sig(pc, context) /* Program counter */
# define PSTATE_sig(context) REG_sig(cpsr, context) /* Current State Register */
# define FP_sig(context) REG_sig(fp, context) /* Frame pointer */
# define LR_sig(context) REG_sig(lr, context) /* Link Register */
static DWORD64 get_fault_esr( ucontext_t *sigcontext )
{
return sigcontext->uc_mcontext->__es.__esr;
}
#endif /* linux */
static pthread_key_t teb_key;
@ -328,6 +346,7 @@ static void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
*/
static void save_fpu( CONTEXT *context, ucontext_t *sigcontext )
{
#ifdef linux
struct fpsimd_context *fp = get_fpsimd_context( sigcontext );
if (!fp) return;
@ -335,6 +354,12 @@ static void save_fpu( CONTEXT *context, ucontext_t *sigcontext )
context->Fpcr = fp->fpcr;
context->Fpsr = fp->fpsr;
memcpy( context->V, fp->vregs, sizeof(context->V) );
#elif defined(__APPLE__)
context->ContextFlags |= CONTEXT_FLOATING_POINT;
context->Fpcr = sigcontext->uc_mcontext->__ns.__fpcr;
context->Fpsr = sigcontext->uc_mcontext->__ns.__fpsr;
memcpy( context->V, sigcontext->uc_mcontext->__ns.__v, sizeof(context->V) );
#endif
}
@ -345,12 +370,18 @@ static void save_fpu( CONTEXT *context, ucontext_t *sigcontext )
*/
static void restore_fpu( CONTEXT *context, ucontext_t *sigcontext )
{
#ifdef linux
struct fpsimd_context *fp = get_fpsimd_context( sigcontext );
if (!fp) return;
fp->fpcr = context->Fpcr;
fp->fpsr = context->Fpsr;
memcpy( fp->vregs, context->V, sizeof(fp->vregs) );
#elif defined(__APPLE__)
sigcontext->uc_mcontext->__ns.__fpcr = context->Fpcr;
sigcontext->uc_mcontext->__ns.__fpsr = context->Fpsr;
memcpy( sigcontext->uc_mcontext->__ns.__v, context->V, sizeof(context->V) );
#endif
}