Remove gating on target architecture in math.rs

Provide math builtins for every "none" target instead of gating on specific
architectures

Author: mchodzikiewicz

src/math.rs

@@ -23,7 +23,7 @@ macro_rules! no_mangle {
     ),
     target_os = "xous",
     target_os = "uefi",
-    all(target_arch = "xtensa", target_os = "none"),
+    target_os = "none",
     all(target_vendor = "fortanix", target_env = "sgx")
 ))]
 no_mangle! {
@@ -95,7 +95,7 @@ no_mangle! {
     ),
     target_os = "xous",
     target_os = "uefi",
-    all(target_arch = "xtensa", target_os = "none"),
+    target_os = "none",
     all(target_vendor = "fortanix", target_env = "sgx"),
     target_os = "windows"
 ))]
@@ -116,7 +116,7 @@ intrinsics! {
 #[cfg(any(
     target_os = "xous",
     target_os = "uefi",
-    all(target_arch = "xtensa", target_os = "none"),
+    target_os = "none",
 ))]
 no_mangle! {
     fn sqrtf(x: f32) -> f32;
@@ -125,7 +125,7 @@ no_mangle! {
 
 #[cfg(any(
     all(target_vendor = "fortanix", target_env = "sgx"),
-    all(target_arch = "xtensa", target_os = "none"),
+    target_os = "none",
     target_os = "xous",
     target_os = "uefi"
 ))]
@@ -138,12 +138,8 @@ no_mangle! {
     fn truncf(x: f32) -> f32;
 }
 
-// only for the thumb*-none-eabi*, riscv32*-none-elf, x86_64-unknown-none and mips*-unknown-none targets that lack the floating point instruction set
 #[cfg(any(
-    all(target_arch = "arm", target_os = "none"),
-    all(target_arch = "riscv32", not(target_feature = "f"), target_os = "none"),
-    all(target_arch = "x86_64", target_os = "none"),
-    all(target_arch = "mips", target_os = "none"),
+    all(target_os = "none"),
 ))]
 no_mangle! {
     fn fmin(x: f64, y: f64) -> f64;