feature gates: std-map -> std

The alternative is to create another std-* gate for each std-related
functionality. I do not think this will scale well, and makes the crate
difficult to use.

If the end-user wants to use host-side functionality they will only need
to specify "std".

Author: tmplt

Cargo.toml

@@ -31,7 +31,7 @@ cm7 = []
 cm7-r0p1 = ["cm7"]
 inline-asm = []
 linker-plugin-lto = []
-std-map = []
+std = []
 
 [workspace]
 members = ["xtask", "cortex-m-semihosting", "panic-semihosting", "panic-itm"]

src/peripheral/itm.rs

@@ -111,7 +111,7 @@ pub enum LocalTimestampOptions {
     EnabledDiv64,
 }
 
-#[cfg(feature = "std-map")]
+#[cfg(feature = "std")]
 impl core::convert::TryFrom<u8> for LocalTimestampOptions {
     type Error = ();
 

src/peripheral/scb.rs

@@ -197,7 +197,7 @@ impl SCB {
 /// Processor core exceptions (internal interrupts)
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-#[cfg_attr(feature = "std-map", derive(PartialOrd, Hash))]
+#[cfg_attr(feature = "std", derive(PartialOrd, Hash))]
 pub enum Exception {
     /// Non maskable interrupt
     NonMaskableInt,
@@ -264,7 +264,7 @@ impl Exception {
 /// Active exception number
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-#[cfg_attr(feature = "std-map", derive(PartialOrd, Hash))]
+#[cfg_attr(feature = "std", derive(PartialOrd, Hash))]
 pub enum VectActive {
     /// Thread mode
     ThreadMode,

xtask/Cargo.toml

@@ -11,5 +11,5 @@ harness = false
 
 [dependencies]
 ar = "0.8.0"
-cortex-m = { path = "../", features = ["serde", "std-map"] }
+cortex-m = { path = "../", features = ["serde", "std"] }
 serde_json = "1"