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Migrate all in-repo crates to edition 2024 #757

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Migrate all in-repo crates to edition 2024 #757

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2 changes: 1 addition & 1 deletion Cargo.toml
View file
Original file line number Diff line number Diff line change
@@ -7,7 +7,7 @@ readme = "README.md"
repository = "https://github.com/rust-lang/compiler-builtins"
homepage = "https://github.com/rust-lang/compiler-builtins"
documentation = "https://docs.rs/compiler_builtins"
edition = "2021"
edition = "2024"
description = """
Compiler intrinsics used by the Rust compiler. Also available for other targets
if necessary!
2 changes: 1 addition & 1 deletion crates/panic-handler/Cargo.toml
View file
Original file line number Diff line number Diff line change
@@ -2,7 +2,7 @@
name = "panic-handler"
version = "0.1.0"
authors = ["Alex Crichton <[email protected]>"]
edition = "2021"
edition = "2024"
publish = false

[dependencies]
18 changes: 9 additions & 9 deletions examples/intrinsics.rs
View file
Original file line number Diff line number Diff line change
@@ -17,7 +17,7 @@ extern crate panic_handler;

#[cfg(all(not(thumb), not(windows), not(target_arch = "wasm32")))]
#[link(name = "c")]
extern "C" {}
unsafe extern "C" {}

// Every function in this module maps will be lowered to an intrinsic by LLVM, if the platform
// doesn't have native support for the operation used in the function. ARM has a naming convention
@@ -626,7 +626,7 @@ fn run() {

something_with_a_dtor(&|| assert_eq!(bb(1), 1));

extern "C" {
unsafe extern "C" {
fn rust_begin_unwind(x: usize);
}

@@ -647,14 +647,14 @@ fn something_with_a_dtor(f: &dyn Fn()) {
f();
}

#[no_mangle]
#[unsafe(no_mangle)]
#[cfg(not(thumb))]
fn main(_argc: core::ffi::c_int, _argv: *const *const u8) -> core::ffi::c_int {
run();
0
}

#[no_mangle]
#[unsafe(no_mangle)]
#[cfg(thumb)]
pub fn _start() -> ! {
run();
@@ -664,23 +664,23 @@ pub fn _start() -> ! {
#[cfg(windows)]
#[link(name = "kernel32")]
#[link(name = "msvcrt")]
extern "C" {}
unsafe extern "C" {}

// ARM targets need these symbols
#[no_mangle]
#[unsafe(no_mangle)]
pub fn __aeabi_unwind_cpp_pr0() {}

#[no_mangle]
#[unsafe(no_mangle)]
pub fn __aeabi_unwind_cpp_pr1() {}

#[cfg(not(windows))]
#[allow(non_snake_case)]
#[no_mangle]
#[unsafe(no_mangle)]
pub fn _Unwind_Resume() {}

#[cfg(not(windows))]
#[lang = "eh_personality"]
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn eh_personality() {}

#[cfg(all(windows, target_env = "gnu"))]
110 changes: 59 additions & 51 deletions src/arm.rs
View file
Original file line number Diff line number Diff line change
@@ -23,64 +23,72 @@ intrinsics! {
#[naked]
#[cfg(not(target_env = "msvc"))]
pub unsafe extern "C" fn __aeabi_uidivmod() {
core::arch::naked_asm!(
"push {{lr}}",
"sub sp, sp, #4",
"mov r2, sp",
bl!("__udivmodsi4"),
"ldr r1, [sp]",
"add sp, sp, #4",
"pop {{pc}}",
);
unsafe {
core::arch::naked_asm!(
"push {{lr}}",
"sub sp, sp, #4",
"mov r2, sp",
bl!("__udivmodsi4"),
"ldr r1, [sp]",
"add sp, sp, #4",
"pop {{pc}}",
);
}
}

#[naked]
pub unsafe extern "C" fn __aeabi_uldivmod() {
core::arch::naked_asm!(
"push {{r4, lr}}",
"sub sp, sp, #16",
"add r4, sp, #8",
"str r4, [sp]",
bl!("__udivmoddi4"),
"ldr r2, [sp, #8]",
"ldr r3, [sp, #12]",
"add sp, sp, #16",
"pop {{r4, pc}}",
);
unsafe {
core::arch::naked_asm!(
"push {{r4, lr}}",
"sub sp, sp, #16",
"add r4, sp, #8",
"str r4, [sp]",
bl!("__udivmoddi4"),
"ldr r2, [sp, #8]",
"ldr r3, [sp, #12]",
"add sp, sp, #16",
"pop {{r4, pc}}",
);
}
}

#[naked]
pub unsafe extern "C" fn __aeabi_idivmod() {
core::arch::naked_asm!(
"push {{r0, r1, r4, lr}}",
bl!("__aeabi_idiv"),
"pop {{r1, r2}}",
"muls r2, r2, r0",
"subs r1, r1, r2",
"pop {{r4, pc}}",
);
unsafe {
core::arch::naked_asm!(
"push {{r0, r1, r4, lr}}",
bl!("__aeabi_idiv"),
"pop {{r1, r2}}",
"muls r2, r2, r0",
"subs r1, r1, r2",
"pop {{r4, pc}}",
);
}
}

#[naked]
pub unsafe extern "C" fn __aeabi_ldivmod() {
core::arch::naked_asm!(
"push {{r4, lr}}",
"sub sp, sp, #16",
"add r4, sp, #8",
"str r4, [sp]",
bl!("__divmoddi4"),
"ldr r2, [sp, #8]",
"ldr r3, [sp, #12]",
"add sp, sp, #16",
"pop {{r4, pc}}",
);
unsafe {
core::arch::naked_asm!(
"push {{r4, lr}}",
"sub sp, sp, #16",
"add r4, sp, #8",
"str r4, [sp]",
bl!("__divmoddi4"),
"ldr r2, [sp, #8]",
"ldr r3, [sp, #12]",
"add sp, sp, #16",
"pop {{r4, pc}}",
);
}
}

// FIXME: The `*4` and `*8` variants should be defined as aliases.

#[cfg(not(target_vendor = "apple"))]
pub unsafe extern "aapcs" fn __aeabi_memcpy(dest: *mut u8, src: *const u8, n: usize) {
crate::mem::memcpy(dest, src, n);
unsafe { crate::mem::memcpy(dest, src, n) };
}

#[cfg(not(target_vendor = "apple"))]
@@ -97,33 +105,33 @@ intrinsics! {
n -= 4;
}

__aeabi_memcpy(dest as *mut u8, src as *const u8, n);
unsafe { __aeabi_memcpy(dest as *mut u8, src as *const u8, n) };
}

#[cfg(not(target_vendor = "apple"))]
pub unsafe extern "aapcs" fn __aeabi_memcpy8(dest: *mut u8, src: *const u8, n: usize) {
__aeabi_memcpy4(dest, src, n);
unsafe { __aeabi_memcpy4(dest, src, n) };
}

#[cfg(not(target_vendor = "apple"))]
pub unsafe extern "aapcs" fn __aeabi_memmove(dest: *mut u8, src: *const u8, n: usize) {
crate::mem::memmove(dest, src, n);
unsafe { crate::mem::memmove(dest, src, n) };
}

#[cfg(not(any(target_vendor = "apple", target_env = "msvc")))]
pub unsafe extern "aapcs" fn __aeabi_memmove4(dest: *mut u8, src: *const u8, n: usize) {
__aeabi_memmove(dest, src, n);
unsafe { __aeabi_memmove(dest, src, n) };
}

#[cfg(not(any(target_vendor = "apple", target_env = "msvc")))]
pub unsafe extern "aapcs" fn __aeabi_memmove8(dest: *mut u8, src: *const u8, n: usize) {
__aeabi_memmove(dest, src, n);
unsafe { __aeabi_memmove(dest, src, n) };
}

#[cfg(not(target_vendor = "apple"))]
pub unsafe extern "aapcs" fn __aeabi_memset(dest: *mut u8, n: usize, c: i32) {
// Note the different argument order
crate::mem::memset(dest, c, n);
unsafe { crate::mem::memset(dest, c, n) };
}

#[cfg(not(target_vendor = "apple"))]
@@ -140,26 +148,26 @@ intrinsics! {
n -= 4;
}

__aeabi_memset(dest as *mut u8, n, byte as i32);
unsafe { __aeabi_memset(dest as *mut u8, n, byte as i32) };
}

#[cfg(not(target_vendor = "apple"))]
pub unsafe extern "aapcs" fn __aeabi_memset8(dest: *mut u8, n: usize, c: i32) {
__aeabi_memset4(dest, n, c);
unsafe { __aeabi_memset4(dest, n, c) };
}

#[cfg(not(target_vendor = "apple"))]
pub unsafe extern "aapcs" fn __aeabi_memclr(dest: *mut u8, n: usize) {
__aeabi_memset(dest, n, 0);
unsafe { __aeabi_memset(dest, n, 0) };
}

#[cfg(not(any(target_vendor = "apple", target_env = "msvc")))]
pub unsafe extern "aapcs" fn __aeabi_memclr4(dest: *mut u8, n: usize) {
__aeabi_memset4(dest, n, 0);
unsafe { __aeabi_memset4(dest, n, 0) };
}

#[cfg(not(any(target_vendor = "apple", target_env = "msvc")))]
pub unsafe extern "aapcs" fn __aeabi_memclr8(dest: *mut u8, n: usize) {
__aeabi_memset4(dest, n, 0);
unsafe { __aeabi_memset4(dest, n, 0) };
}
}
18 changes: 9 additions & 9 deletions src/macros.rs
View file
Original file line number Diff line number Diff line change
@@ -255,7 +255,7 @@ macro_rules! intrinsics {

#[cfg(all(any(windows, target_os = "uefi"), target_arch = "x86_64", not(feature = "mangled-names")))]
mod $name {
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
extern $abi fn $name( $($argname: $ty),* )
-> $crate::macros::win64_128bit_abi_hack::U64x2
@@ -320,7 +320,7 @@ macro_rules! intrinsics {

#[cfg(all(target_vendor = "apple", any(target_arch = "x86", target_arch = "x86_64"), not(feature = "mangled-names")))]
mod $name {
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
$(#[$($attr)*])*
extern $abi fn $name( $($argname: u16),* ) $(-> $ret)? {
@@ -356,7 +356,7 @@ macro_rules! intrinsics {

#[cfg(all(target_vendor = "apple", any(target_arch = "x86", target_arch = "x86_64"), not(feature = "mangled-names")))]
mod $name {
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
$(#[$($attr)*])*
extern $abi fn $name( $($argname: $ty),* ) -> u16 {
@@ -397,7 +397,7 @@ macro_rules! intrinsics {

#[cfg(all(target_arch = "arm", not(feature = "mangled-names")))]
mod $name {
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
$(#[$($attr)*])*
extern $abi fn $name( $($argname: $ty),* ) $(-> $ret)? {
@@ -407,7 +407,7 @@ macro_rules! intrinsics {

#[cfg(all(target_arch = "arm", not(feature = "mangled-names")))]
mod $alias {
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
$(#[$($attr)*])*
extern "aapcs" fn $alias( $($argname: $ty),* ) $(-> $ret)? {
@@ -474,7 +474,7 @@ macro_rules! intrinsics {
#[cfg(all(feature = "mem", not(feature = "mangled-names")))]
mod $name {
$(#[$($attr)*])*
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
unsafe extern $abi fn $name( $($argname: $ty),* ) $(-> $ret)? {
super::$name($($argname),*)
@@ -499,7 +499,7 @@ macro_rules! intrinsics {
pub mod $name {
#[naked]
$(#[$($attr)*])*
#[cfg_attr(not(feature = "mangled-names"), no_mangle)]
#[cfg_attr(not(feature = "mangled-names"), unsafe(no_mangle))]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
pub unsafe extern $abi fn $name( $($argname: $ty),* ) $(-> $ret)? {
$($body)*
@@ -566,10 +566,10 @@ macro_rules! intrinsics {
#[cfg(not(feature = "mangled-names"))]
mod $name {
$(#[$($attr)*])*
#[no_mangle]
#[unsafe(no_mangle)]
#[cfg_attr(not(all(windows, target_env = "gnu")), linkage = "weak")]
$(unsafe $($empty)?)? extern $abi fn $name( $($argname: $ty),* ) $(-> $ret)? {
super::$name($($argname),*)
$(unsafe $($empty)?)? { super::$name($($argname),*) }
}
}

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