bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Fix unsafe_op_in_unsafe_fn in compiler

Browse source
This commit is contained in:
Michael Goulet 2024-07-14 14:27:57 -04:00
parent 71eb49c318
commit 28503d69ac
15 changed files with 386 additions and 311 deletions
Download patch file Download diff file Expand all files Collapse all files

48
compiler/rustc_codegen_llvm/src/allocator.rs
View file

@ -21,14 +21,16 @@ pub(crate) unsafe fn codegen(
) {
let llcx = &*module_llvm.llcx;
let llmod = module_llvm.llmod();
let usize = match tcx.sess.target.pointer_width {
16 => llvm::LLVMInt16TypeInContext(llcx),
32 => llvm::LLVMInt32TypeInContext(llcx),
64 => llvm::LLVMInt64TypeInContext(llcx),
tws => bug!("Unsupported target word size for int: {}", tws),
let usize = unsafe {
match tcx.sess.target.pointer_width {
16 => llvm::LLVMInt16TypeInContext(llcx),
32 => llvm::LLVMInt32TypeInContext(llcx),
64 => llvm::LLVMInt64TypeInContext(llcx),
tws => bug!("Unsupported target word size for int: {}", tws),
}
};
let i8 = llvm::LLVMInt8TypeInContext(llcx);
let i8p = llvm::LLVMPointerTypeInContext(llcx, 0);
let i8 = unsafe { llvm::LLVMInt8TypeInContext(llcx) };
let i8p = unsafe { llvm::LLVMPointerTypeInContext(llcx, 0) };
if kind == AllocatorKind::Default {
for method in ALLOCATOR_METHODS {
@ -73,23 +75,25 @@ pub(crate) unsafe fn codegen(
true,
);
// __rust_alloc_error_handler_should_panic
let name = OomStrategy::SYMBOL;
let ll_g = llvm::LLVMRustGetOrInsertGlobal(llmod, name.as_ptr().cast(), name.len(), i8);
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(ll_g, llvm::Visibility::Hidden);
}
let val = tcx.sess.opts.unstable_opts.oom.should_panic();
let llval = llvm::LLVMConstInt(i8, val as u64, False);
llvm::LLVMSetInitializer(ll_g, llval);
unsafe {
// __rust_alloc_error_handler_should_panic
let name = OomStrategy::SYMBOL;
let ll_g = llvm::LLVMRustGetOrInsertGlobal(llmod, name.as_ptr().cast(), name.len(), i8);
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(ll_g, llvm::Visibility::Hidden);
}
let val = tcx.sess.opts.unstable_opts.oom.should_panic();
let llval = llvm::LLVMConstInt(i8, val as u64, False);
llvm::LLVMSetInitializer(ll_g, llval);
let name = NO_ALLOC_SHIM_IS_UNSTABLE;
let ll_g = llvm::LLVMRustGetOrInsertGlobal(llmod, name.as_ptr().cast(), name.len(), i8);
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(ll_g, llvm::Visibility::Hidden);
let name = NO_ALLOC_SHIM_IS_UNSTABLE;
let ll_g = llvm::LLVMRustGetOrInsertGlobal(llmod, name.as_ptr().cast(), name.len(), i8);
if tcx.sess.default_hidden_visibility() {
llvm::LLVMRustSetVisibility(ll_g, llvm::Visibility::Hidden);
}
let llval = llvm::LLVMConstInt(i8, 0, False);
llvm::LLVMSetInitializer(ll_g, llval);
}
let llval = llvm::LLVMConstInt(i8, 0, False);
llvm::LLVMSetInitializer(ll_g, llval);
if tcx.sess.opts.debuginfo != DebugInfo::None {
let dbg_cx = debuginfo::CodegenUnitDebugContext::new(llmod);