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#define NUM_SSE_IN 8
#define NUM_X87_OUT 2
enum {
RETURN_TYPE_NORMAL,
RETURN_TYPE_STRUCT,
RETURN_TYPE_X87,
RETURN_TYPE_COMPLEX_X87,
RETURN_TYPE_JMP,
RETURN_TYPE_JMP_STRET
};
struct call_context {
uint64_t gpr[NUM_GPR_IN + NUM_GPR_OUT];
__m128 sse[NUM_SSE_IN];
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sizeof(**context) + ((*context)->stack_size + 2) * 8];
}
memcpy(&newContext->stack[newContext->stack_size], &value, 16);
newContext->stack_size += 2;
*context = newContext;
}
static void
pushLongDoublePair(struct call_context **context, long double value[2])
{
size_t stackSize;
struct call_context *newContext;
stackSize = OF_ROUND_UP_POW2(2, (*context)->stack_size) + 4;
if ((newContext = realloc(*context,
sizeof(**context) + stackSize * 8)) == NULL) {
free(*context);
@throw [OFOutOfMemoryException exceptionWithRequestedSize:
sizeof(**context) + stackSize * 8];
}
memset(&newContext->stack[newContext->stack_size], '\0',
(stackSize - newContext->stack_size) * 8);
memcpy(&newContext->stack[stackSize - 4], value, 32);
newContext->stack_size = stackSize;
*context = newContext;
}
#if defined(__SIZEOF_INT128__) && !defined(__clang__)
static void
pushInt128(struct call_context **context, uint_fast8_t *currentGPR,
uint64_t low, uint64_t high)
uint64_t value[2])
{
size_t stackSize;
struct call_context *newContext;
if (*currentGPR + 1 < NUM_GPR_IN) {
(*context)->gpr[(*currentGPR)++] = low;
(*context)->gpr[(*currentGPR)++] = high;
(*context)->gpr[(*currentGPR)++] = value[0];
(*context)->gpr[(*currentGPR)++] = value[1];
return;
}
stackSize = OF_ROUND_UP_POW2(2, (*context)->stack_size) + 2;
if ((newContext = realloc(*context,
sizeof(**context) + stackSize * 8)) == NULL) {
free(*context);
@throw [OFOutOfMemoryException exceptionWithRequestedSize:
sizeof(**context) + stackSize * 8];
}
memset(&newContext->stack[newContext->stack_size], '\0',
(stackSize - newContext->stack_size) * 8);
newContext->stack[stackSize - 2] = low;
memcpy(&newContext->stack[stackSize - 2], value, 16);
newContext->stack[stackSize - 1] = high;
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CASE_GPR('@', uintptr_t)
CASE_GPR('#', uintptr_t)
CASE_GPR(':', uintptr_t)
CASE_GPR('^', uintptr_t)
#ifdef __SIZEOF_INT128__
case 't':
case 'T':;
struct {
uint64_t low, high;
} int128Tmp;
pushInt128(&context, ¤tGPR,
pushInt128(&context, ¤tGPR, int128Tmp);
int128Tmp.low, int128Tmp.high);
pushGPR(&context, ¤tGPR, int128Tmp.low);
pushGPR(&context, ¤tGPR, int128Tmp.high);
pushGPR(&context, ¤tGPR, int128Tmp[0]);
pushGPR(&context, ¤tGPR, int128Tmp[1]);
# endif
break;
#endif
case 'f':;
float floatTmp;
[invocation getArgument: &floatTmp
atIndex: i];
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case 'd':;
double complexDoubleTmp[2];
[invocation getArgument: &complexDoubleTmp
atIndex: i];
pushQuad(&context, ¤tSSE,
complexDoubleTmp[0], complexDoubleTmp[1]);
break;
/* TODO: 'D' */
case 'D':;
long double complexLongDoubleTmp[2];
[invocation getArgument: &complexLongDoubleTmp
atIndex: i];
pushLongDoublePair(&context,
complexLongDoubleTmp);
break;
default:
free(context);
@throw [OFInvalidFormatException exception];
}
break;
#endif
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#ifndef __STDC_NO_COMPLEX__
case 'j':
switch (typeEncoding[1]) {
case 'f':
case 'd':
context->return_type = RETURN_TYPE_NORMAL;
break;
/* TODO: 'D' */
case 'D':
context->return_type = RETURN_TYPE_COMPLEX_X87;
break;
default:
free(context);
@throw [OFInvalidFormatException exception];
}
break;
#endif
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double complexDoubleTmp[2];
_mm_store_sd(&complexDoubleTmp[0],
(__m128d)context->sse[0]);
_mm_store_sd(&complexDoubleTmp[1],
(__m128d)context->sse[1]);
[invocation setReturnValue: &complexDoubleTmp];
break;
/* TODO: 'D' */
case 'D':
[invocation setReturnValue: context->x87];
break;
default:
free(context);
@throw [OFInvalidFormatException exception];
}
break;
#endif
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