[compiler/api]

- Use regular C runtime to handle executable startup.
- Add support for clang address sanitizer on Linux and Mac.
- Fix hash table issues with reuse of deleted slots.
- RPATH is now listed first in a group when LD is called on Linux or Mac.
- LD is invoked with all dependencies in --start-group --end-group block on Linux.
- DLib now use correct dynamic runtime on Windows.

Author: travisdoor

CHANGELOG.txt

@@ -51,6 +51,12 @@ master
 - Revamp implementation of multi-value expressions.
 - Add support for unroll multi-return value in assignment statement.
 - Fix issues with multi-value declarations in global scope.
+- Use regular C runtime to handle executable startup.
+- Add support for clang address sanitizer on Linux and Mac.
+- Fix hash table issues with reuse of deleted slots.
+- RPATH is now listed first in a group when LD is called on Linux or Mac.
+- LD is invoked with all dependencies in --start-group --end-group block on Linux.
+- DLib now use correct dynamic runtime on Windows.
 
 [Modules]
 

RELEASE_STEPS.md

@@ -42,4 +42,11 @@
 	[Deprecated]
 
 - Push master branch.
-- Make sure everything works...
+- Make sure everything works...
+
+# LLVM Upgrade
+
+- Precompile Windows package.
+- Rebuild asan module to match new LLVM version.
+- Rebuild LLVM linker.
+- Check if ASAN works on Windows.

lib/bl/api/build/build.bl

@@ -178,6 +178,8 @@ Target :: struct { // !!! ABI sync TargetOptions !!!
 	enable_experimental_targets: bool;
 	/// Target triple according to LLVM.
 	triple: TargetTriple;
+	/// Enable runtime LLVM address sanitizer.
+	sanitize_address: bool;
 }
 
 ScopeDumpMode :: enum {

lib/bl/api/builtin/asan/linux/libasan.so

@@ -0,0 +1 @@
+libasan.so.8.0.0

lib/bl/api/builtin/asan/linux/libasan.so.8

@@ -0,0 +1 @@
+libasan.so.8.0.0

lib/bl/api/builtin/asan/linux/libasan.so.8.0.0

@@ -0,0 +1,22 @@
+version: 20260407
+supported: "x86_64-pc-linux-gnu, x86_64-unknown-linux-gnu, arm64-apple-darwin"
+
+# ASAN runtime is broken on Windows for some reason, we currently use LLVM 18,
+# the issue might be fixed in newer LLVM, we should revisit this when upgrading
+# compiler LLVM.
+#x86_64-pc-windows-msvc:
+#  linker_lib_path: "win32"
+#  link_runtime: "clang_rt.asan_dynamic-x86_64"
+#  linker_opt: "clang_rt.asan_dynamic_runtime_thunk-x86_64.lib"
+
+x86_64-pc-linux-gnu:
+  linker_lib_path: "linux"
+  link_runtime: "asan"
+
+x86_64-unknown-linux-gnu:
+  linker_lib_path: "linux"
+  link_runtime: "asan"
+
+arm64-apple-darwin:
+  linker_lib_path: "macos"
+  link_runtime: "clang_rt.asan_osx_dynamic"