Auto merge of #117313 - GuillaumeGomez:cg_gcc-tests, r=onur-ozkan

Run part of `rustc_codegen_gcc`'s tests in CI

Thanks to #112701 and `@bjorn3,` it made this much easier.

Also cc `@antoyo.`

r? `@bjorn3`

3 files changed, 16 insertions, 6 deletions

diff --git a/compiler/rustc_codegen_gcc/example/alloc_example.rs b/compiler/rustc_codegen_gcc/example/alloc_example.rs
index f1954a30cf8..6ed8b9157f2 100644
--- a/compiler/rustc_codegen_gcc/example/alloc_example.rs
+++ b/compiler/rustc_codegen_gcc/example/alloc_example.rs
@@ -18,7 +18,7 @@ extern "C" {
 }
 
 #[panic_handler]
-fn panic_handler(_: &core::panic::PanicInfo) -> ! {
+fn panic_handler(_: &core::panic::PanicInfo<'_>) -> ! {
     core::intrinsics::abort();
 }
 
diff --git a/compiler/rustc_codegen_gcc/example/alloc_system.rs b/compiler/rustc_codegen_gcc/example/alloc_system.rs
index 201e4c73675..945d34063a6 100644
--- a/compiler/rustc_codegen_gcc/example/alloc_system.rs
+++ b/compiler/rustc_codegen_gcc/example/alloc_system.rs
@@ -3,7 +3,6 @@
 
 #![no_std]
 #![feature(allocator_api, rustc_private)]
-#![cfg_attr(any(unix, target_os = "redox"), feature(libc))]
 
 // The minimum alignment guaranteed by the architecture. This value is used to
 // add fast paths for low alignment values.
@@ -48,7 +47,18 @@ mod realloc_fallback {
 }
 #[cfg(any(unix, target_os = "redox"))]
 mod platform {
-    extern crate libc;
+    mod libc {
+        use core::ffi::{c_void, c_int};
+
+        #[link(name = "c")]
+        extern "C" {
+            pub fn malloc(size: usize) -> *mut c_void;
+            pub fn realloc(ptr: *mut c_void, size: usize) -> *mut c_void;
+            pub fn calloc(nmemb: usize, size: usize) -> *mut c_void;
+            pub fn free(ptr: *mut u8);
+            pub fn posix_memalign(memptr: *mut *mut c_void, alignment: usize, size: usize) -> c_int;
+        }
+    }
     use core::ptr;
     use MIN_ALIGN;
     use System;
@@ -82,12 +92,12 @@ mod platform {
         }
         #[inline]
         unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) {
-            libc::free(ptr as *mut libc::c_void)
+            libc::free(ptr as *mut _)
         }
         #[inline]
         unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {
             if layout.align() <= MIN_ALIGN && layout.align() <= new_size {
-                libc::realloc(ptr as *mut libc::c_void, new_size) as *mut u8
+                libc::realloc(ptr as *mut _, new_size) as *mut u8
             } else {
                 self.realloc_fallback(ptr, layout, new_size)
             }
diff --git a/compiler/rustc_codegen_gcc/example/mod_bench.rs b/compiler/rustc_codegen_gcc/example/mod_bench.rs
index c60bc7fb724..cae911c1073 100644
--- a/compiler/rustc_codegen_gcc/example/mod_bench.rs
+++ b/compiler/rustc_codegen_gcc/example/mod_bench.rs
@@ -6,7 +6,7 @@
 extern {}
 
 #[panic_handler]
-fn panic_handler(_: &core::panic::PanicInfo) -> ! {
+fn panic_handler(_: &core::panic::PanicInfo<'_>) -> ! {
     core::intrinsics::abort();
 }