Auto merge of rust-lang#118178 - compiler-errors:rollup-0i11w85, r=co…

…mpiler-errors

Rollup of 6 pull requests

Successful merges:

 - rust-lang#118012 (Add support for global allocation in smir)
 - rust-lang#118013 (Enable Rust to use the EHCont security feature of Windows)
 - rust-lang#118100 (Enable profiler in dist-powerpc64-linux)
 - rust-lang#118142 (Tighten up link attributes for llvm-wrapper bindings)
 - rust-lang#118147 (Fix some unnecessary casts)
 - rust-lang#118161 (Allow defining opaques in `check_coroutine_obligations`)

r? `@ghost`
`@rustbot` modify labels: rollup

compiler/rustc_codegen_llvm/src/context.rs

@@ -351,6 +351,16 @@ pub unsafe fn create_module<'ll>(
         );
     }
 
+    // Set module flag to enable Windows EHCont Guard (/guard:ehcont).
+    if sess.opts.unstable_opts.ehcont_guard {
+        llvm::LLVMRustAddModuleFlag(
+            llmod,
+            llvm::LLVMModFlagBehavior::Warning,
+            "ehcontguard\0".as_ptr() as *const _,
+            1,
+        )
+    }
+
     // Insert `llvm.ident` metadata.
     //
     // On the wasm targets it will get hooked up to the "producer" sections

compiler/rustc_codegen_llvm/src/lib.rs

@@ -104,7 +104,7 @@ struct TimeTraceProfiler {
 impl TimeTraceProfiler {
     fn new(enabled: bool) -> Self {
         if enabled {
-            unsafe { llvm::LLVMTimeTraceProfilerInitialize() }
+            unsafe { llvm::LLVMRustTimeTraceProfilerInitialize() }
         }
         TimeTraceProfiler { enabled }
     }
@@ -113,7 +113,7 @@ impl TimeTraceProfiler {
 impl Drop for TimeTraceProfiler {
     fn drop(&mut self) {
         if self.enabled {
-            unsafe { llvm::LLVMTimeTraceProfilerFinishThread() }
+            unsafe { llvm::LLVMRustTimeTraceProfilerFinishThread() }
         }
     }
 }