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AK+Userland: Stub out code that isn't currently implemented on AARCH64

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Even though this almost certainly wouldn't run properly even if we had
a working kernel for AARCH64 this at least lets us build all the
userland binaries.
This commit is contained in:
Gunnar Beutner 2022-10-12 21:55:05 +02:00 • committed by Linus Groh
parent c18c84dbfd
commit 31bd5b1a02
17 changed files with 206 additions and 6 deletions
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57
Userland/Libraries/LibC/math.cpp
View file

@ -9,7 +9,9 @@
#include <AK/BuiltinWrappers.h>
#include <AK/ExtraMathConstants.h>
#include <AK/FPControl.h>
#ifndef AK_ARCH_AARCH64
# include <AK/FPControl.h>
#endif
#include <AK/Math.h>
#include <AK/Platform.h>
#include <AK/StdLibExtras.h>
@ -62,7 +64,7 @@ enum class RoundingMode {
template<typename T>
union FloatExtractor;
#if ARCH(I386) || ARCH(X86_64)
#if ARCH(I386) || ARCH(X86_64) || ARCH(AARCH64)
// This assumes long double is 80 bits, which is true with GCC on Intel platforms
template<>
union FloatExtractor<long double> {
@ -413,6 +415,7 @@ MAKE_AK_BACKED2(remainder);
long double truncl(long double x) NOEXCEPT
{
#ifndef AK_ARCH_AARCH64
if (fabsl(x) < LONG_LONG_MAX) {
// This is 1.6 times faster than the implementation using the "internal_to_integer"
// helper (on x86_64)
@ -425,12 +428,14 @@ long double truncl(long double x) NOEXCEPT
: [temp] "m"(temp));
return x;
}
#endif
return internal_to_integer(x, RoundingMode::ToZero);
}
double trunc(double x) NOEXCEPT
{
#ifndef AK_ARCH_AARCH64
if (fabs(x) < LONG_LONG_MAX) {
u64 temp;
asm(
@ -440,12 +445,14 @@ double trunc(double x) NOEXCEPT
: [temp] "m"(temp));
return x;
}
#endif
return internal_to_integer(x, RoundingMode::ToZero);
}
float truncf(float x) NOEXCEPT
{
#ifndef AK_ARCH_AARCH64
if (fabsf(x) < LONG_LONG_MAX) {
u64 temp;
asm(
@ -455,40 +462,60 @@ float truncf(float x) NOEXCEPT
: [temp] "m"(temp));
return x;
}
#endif
return internal_to_integer(x, RoundingMode::ToZero);
}
long double rintl(long double value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long double res;
asm(
"frndint\n"
: "=t"(res)
: "0"(value));
return res;
#endif
}
double rint(double value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
double res;
asm(
"frndint\n"
: "=t"(res)
: "0"(value));
return res;
#endif
}
float rintf(float value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
float res;
asm(
"frndint\n"
: "=t"(res)
: "0"(value));
return res;
#endif
}
long lrintl(long double value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long res;
asm(
"fistpl %0\n"
@ -496,9 +523,14 @@ long lrintl(long double value)
: "t"(value)
: "st");
return res;
#endif
}
long lrint(double value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long res;
asm(
"fistpl %0\n"
@ -506,9 +538,14 @@ long lrint(double value)
: "t"(value)
: "st");
return res;
#endif
}
long lrintf(float value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long res;
asm(
"fistpl %0\n"
@ -516,10 +553,15 @@ long lrintf(float value)
: "t"(value)
: "st");
return res;
#endif
}
long long llrintl(long double value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long long res;
asm(
"fistpq %0\n"
@ -527,9 +569,14 @@ long long llrintl(long double value)
: "t"(value)
: "st");
return res;
#endif
}
long long llrint(double value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long long res;
asm(
"fistpq %0\n"
@ -537,9 +584,14 @@ long long llrint(double value)
: "t"(value)
: "st");
return res;
#endif
}
long long llrintf(float value)
{
#ifdef AK_ARCH_AARCH64
(void)value;
TODO_AARCH64();
#else
long long res;
asm(
"fistpq %0\n"
@ -547,6 +599,7 @@ long long llrintf(float value)
: "t"(value)
: "st");
return res;
#endif
}
// On systems where FLT_RADIX == 2, ldexp is equivalent to scalbn