diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/context.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/context.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index 257a0ac89d8..cda766039c1 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -221,6 +221,15 @@ pub unsafe fn create_module( llvm::LLVMRustAddModuleFlag(llmod, avoid_plt, 1); } + if sess.is_sanitizer_cfi_enabled() { + // FIXME(rcvalle): Add support for non canonical jump tables. + let canonical_jump_tables = "CFI Canonical Jump Tables\0".as_ptr().cast(); + // FIXME(rcvalle): Add it with Override behavior flag--LLVMRustAddModuleFlag adds it with + // Warning behavior flag. Add support for specifying the behavior flag to + // LLVMRustAddModuleFlag. + llvm::LLVMRustAddModuleFlag(llmod, canonical_jump_tables, 1); + } + // Control Flow Guard is currently only supported by the MSVC linker on Windows. if sess.target.is_like_msvc { match sess.opts.cg.control_flow_guard { @@ -779,6 +788,8 @@ impl CodegenCx<'b, 'tcx> { ifn!("llvm.instrprof.increment", fn(i8p, t_i64, t_i32, t_i32) -> void); } + ifn!("llvm.type.test", fn(i8p, self.type_metadata()) -> i1); + if self.sess().opts.debuginfo != DebugInfo::None { ifn!("llvm.dbg.declare", fn(self.type_metadata(), self.type_metadata()) -> void); ifn!("llvm.dbg.value", fn(self.type_metadata(), t_i64, self.type_metadata()) -> void); |