kernel: add arm architecture support

Signed-off-by: EnderIce2 <enderice2@protonmail.com>

Userspace/libc/src/softfloat.c

@@ -19,3 +19,176 @@ double __trunctfdf2(long double a)
 {
 	return (double)a;
 }
+
+int __aeabi_dcmple(long double a, long double b)
+{
+	return a <= b;
+}
+
+long long __aeabi_d2lz(double a)
+{
+	return (long long)a;
+}
+
+int __aeabi_dcmplt(long double a, long double b)
+{
+	return a < b;
+}
+
+typedef union
+{
+	double d;
+	struct
+	{
+		__UINT64_TYPE__ mantissa : 52;
+		__UINT64_TYPE__ exponent : 11;
+		__UINT64_TYPE__ sign : 1;
+	} parts;
+} aeabi_double_t;
+
+aeabi_double_t __aeabi_ddiv(aeabi_double_t a, aeabi_double_t b)
+{
+	aeabi_double_t result;
+	result.d = a.d / b.d;
+	return result;
+}
+
+aeabi_double_t __aeabi_dmul(aeabi_double_t a, aeabi_double_t b)
+{
+	aeabi_double_t result;
+	result.d = a.d * b.d;
+	return result;
+}
+
+aeabi_double_t __aeabi_dadd(aeabi_double_t a, aeabi_double_t b)
+{
+	aeabi_double_t result;
+	result.d = a.d + b.d;
+	return result;
+}
+
+int __aeabi_dcmpgt(aeabi_double_t a, aeabi_double_t b)
+{
+	return a.d > b.d;
+}
+
+int __aeabi_dcmpge(aeabi_double_t a, aeabi_double_t b)
+{
+	return a.d >= b.d;
+}
+
+aeabi_double_t __aeabi_dsub(aeabi_double_t a, aeabi_double_t b)
+{
+	aeabi_double_t result;
+	result.d = a.d - b.d;
+	return result;
+}
+
+aeabi_double_t __aeabi_i2d(int a)
+{
+	aeabi_double_t result;
+	result.d = (double)a;
+	return result;
+}
+
+aeabi_double_t __aeabi_l2d(long long a)
+{
+	aeabi_double_t result;
+	result.d = (double)a;
+	return result;
+}
+
+int __aeabi_dcmpeq(aeabi_double_t a, aeabi_double_t b)
+{
+	return a.d == b.d;
+}
+
+int __aeabi_d2iz(aeabi_double_t a)
+{
+	return (int)a.d;
+}
+
+struct ldivmod_result
+{
+	long quot;
+	long rem;
+};
+
+struct ldivmod_result __aeabi_ldivmod(long numerator, long denominator)
+{
+	struct ldivmod_result result;
+	result.quot = numerator / denominator;
+	result.rem = numerator % denominator;
+	return result;
+}
+
+signed __aeabi_idiv(signed numerator, signed denominator)
+{
+	return numerator / denominator;
+}
+
+signed __aeabi_idivmod(signed numerator, signed denominator)
+{
+	signed quotient = numerator / denominator;
+	signed remainder = numerator % denominator;
+	return (quotient << 16) | remainder;
+}
+
+unsigned __aeabi_uidiv(unsigned numerator, unsigned denominator)
+{
+	return numerator / denominator;
+}
+
+unsigned __aeabi_uidivmod(unsigned numerator, unsigned denominator)
+{
+	unsigned quotient = numerator / denominator;
+	unsigned remainder = numerator % denominator;
+	return (quotient << 16) | remainder;
+}
+
+__UINT64_TYPE__ __udivmoddi4(__UINT64_TYPE__ numerator, __UINT64_TYPE__ denominator, __UINT64_TYPE__ *remainder)
+{
+	__UINT64_TYPE__ quotient = 0;
+	__UINT64_TYPE__ bit = 1;
+
+	if (denominator == 0)
+	{
+		*remainder = numerator;
+		return ~0ULL;
+	}
+
+	while (denominator < numerator && (denominator & (1ULL << 63)) == 0)
+	{
+		denominator <<= 1;
+		bit <<= 1;
+	}
+
+	while (bit)
+	{
+		if (numerator >= denominator)
+		{
+			numerator -= denominator;
+			quotient |= bit;
+		}
+		denominator >>= 1;
+		bit >>= 1;
+	}
+
+	if (remainder)
+		*remainder = numerator;
+
+	return quotient;
+}
+
+struct udivmod_result
+{
+	__UINT64_TYPE__ quot;
+	__UINT64_TYPE__ rem;
+};
+
+struct udivmod_result __aeabi_uldivmod(__UINT64_TYPE__ numerator, __UINT64_TYPE__ denominator)
+{
+	struct udivmod_result result;
+	result.quot = __udivmoddi4(numerator, denominator, &result.rem);
+	return result;
+}