Fixes of mimalloc warnings (#3765)

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/CommandLine.kt

@@ -70,7 +70,7 @@ open class CommonInteropArguments(val argParser: ArgParser) {
 
 class CInteropArguments(argParser: ArgParser =
                                 ArgParser("cinterop",
-                                        prefixStyle = ArgParser.OPTION_PREFIX_STYLE.JVM)): CommonInteropArguments(argParser) {
+                                        prefixStyle = ArgParser.OptionPrefixStyle.JVM)): CommonInteropArguments(argParser) {
     val target by argParser.option(ArgType.String, description = "native target to compile to").default("host")
     val def by argParser.option(ArgType.String, description = "the library definition file")
     val header by argParser.option(ArgType.String, description = "header file to produce kotlin bindings for")
@@ -99,7 +99,7 @@ class CInteropArguments(argParser: ArgParser =
 }
 
 class JSInteropArguments(argParser: ArgParser = ArgParser("jsinterop",
-        prefixStyle = ArgParser.OPTION_PREFIX_STYLE.JVM)): CommonInteropArguments(argParser) {
+        prefixStyle = ArgParser.OptionPrefixStyle.JVM)): CommonInteropArguments(argParser) {
     val target by argParser.option(ArgType.Choice(listOf("wasm32")),
             description = "wasm target to compile to").default("wasm32")
 }

build-tools/src/main/kotlin/org/jetbrains/kotlin/CompileToBitcode.kt

@@ -65,7 +65,7 @@ open class CompileToBitcode @Inject constructor(@InputDirectory val srcRoot: Fil
                     Language.C -> Triple("clang",
                             // Used flags provided by original build of allocator C code.
                             commonFlags + listOf("-std=gnu11", "-O3", "-Wall", "-Wextra", "-Wno-unknown-pragmas",
-                                    "-ftls-model=initial-exec"),
+                                    "-Werror", "-ftls-model=initial-exec", "-Wno-unused-function"),
                             listOf("**/*.c"))
                     Language.CPP -> Triple("clang++",
                             commonFlags + listOfNotNull("-std=c++14", "-Werror", "-O2",

runtime/src/mimalloc/c/include/mimalloc-internal.h

@@ -163,12 +163,23 @@ bool        _mi_page_is_valid(mi_page_t* page);
 static inline bool mi_mul_overflow(size_t count, size_t size, size_t* total) {
 #if __has_builtin(__builtin_umul_overflow) || __GNUC__ >= 5
 #include <limits.h>   // UINT_MAX, ULONG_MAX
-#if (SIZE_MAX == UINT_MAX)
+// Changed order for armv7 (ULONG_MAX == UINT_MAX, but size_t = unsigned long)
-  return __builtin_umul_overflow(count, size, total);
+#if defined(__MACH__) && KONAN_MI_MALLOC
-#elif (SIZE_MAX == ULONG_MAX)
+  #if (SIZE_MAX == ULONG_MAX)
-  return __builtin_umull_overflow(count, size, total);
+    return __builtin_umull_overflow(count, size, total);
+  #elif (SIZE_MAX == UINT_MAX)
+    return __builtin_umul_overflow(count, size, total);
+  #else
+    return __builtin_umulll_overflow(count, size, total);
+  #endif
 #else
-  return __builtin_umulll_overflow(count, size, total);
+  #if (SIZE_MAX == UINT_MAX)
+    return __builtin_umul_overflow(count, size, total);
+  #elif (SIZE_MAX == ULONG_MAX)
+    return __builtin_umull_overflow(count, size, total);
+  #else
+    return __builtin_umulll_overflow(count, size, total);
+  #endif
 #endif
 #else /* __builtin_umul_overflow is unavailable */
   *total = count * size;
@@ -471,7 +482,7 @@ static inline uintptr_t _mi_thread_id(void) mi_attr_noexcept {
   #if KONAN_MI_MALLOC
   #include <TargetConditionals.h>
     #if TARGET_OS_EMBEDDED // iOS/tvOS/watchOS devices.
-      tid = pthread_self();
+      tid = pthread_mach_thread_np(pthread_self());
     #else
        __asm__("movq %%gs:0, %0" : "=r" (tid) : : );  // x86_64 macOS uses GS
     #endif

utilities/src/main/kotlin/org/jetbrains/kotlin/cli/utilities/GeneratePlatformLibraries.kt

@@ -11,7 +11,7 @@ import java.util.concurrent.*
 import kotlinx.cli.*
 
 fun generatePlatformLibraries(args: Array<String>) {
-    val argParser = ArgParser("generate-platform", prefixStyle = ArgParser.OPTION_PREFIX_STYLE.JVM)
+    val argParser = ArgParser("generate-platform", prefixStyle = ArgParser.OptionPrefixStyle.JVM)
     val inputDirectoryPath by argParser.option(
             ArgType.String, "input-directory", "i", "Input directory").required()
     val outputDirectoryPath by argParser.option(