Revert LLVM toolchain to 12 for weekly version

Signed-off-by: Nhaotuo <haotuo@huawei.com>
Change-Id: I53b79372c945a2ff5552afb0750cf344e4808d23

BUILD.gn

@@ -202,10 +202,6 @@ config("warn_config") {
   ]
   if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
     cflags += [ "-Wno-address-of-packed-member" ]
-    cflags += [
-      "-Wno-unused-but-set-variable",
-      "-Wno-strict-prototypes",
-    ]
   }
   asmflags = cflags
 }

apps/shell/src/main.c

@@ -44,7 +44,7 @@
 
 ShellCB *g_shellCB = NULL;
 
-ShellCB *OsGetShellCb(void)
+ShellCB *OsGetShellCb()
 {
     return g_shellCB;
 }

kernel/base/core/los_task.c

@@ -394,7 +394,7 @@ STATIC VOID OsTaskResourcesToFree(LosTaskCB *taskCB)
     return;
 }
 
-LITE_OS_SEC_TEXT VOID OsTaskCBRecycleToFree(void)
+LITE_OS_SEC_TEXT VOID OsTaskCBRecycleToFree()
 {
     UINT32 intSave;
 

kernel/base/vm/los_vm_phys.c

@@ -52,7 +52,7 @@ STATIC struct VmPhysArea g_physArea[] = {
 struct VmPhysSeg g_vmPhysSeg[VM_PHYS_SEG_MAX];
 INT32 g_vmPhysSegNum = 0;
 
-LosVmPhysSeg *OsGVmPhysSegGet(void)
+LosVmPhysSeg *OsGVmPhysSegGet()
 {
     return g_vmPhysSeg;
 }

lib/libc/musl/Makefile

@@ -64,6 +64,5 @@ else
 LOCAL_FLAGS += -frounding-math -Wno-unused-but-set-variable
 endif
 LOCAL_FLAGS += -Wno-shift-op-parentheses -Wno-logical-op-parentheses -Wno-bitwise-op-parentheses -Wno-unknown-pragmas
-LOCAL_FLAGS += -Wno-unused-but-set-variable
 
 include $(MODULE)

testsuites/unittest/process/basic/process/smoke/process_test_008.cpp

@@ -34,7 +34,6 @@ static const int TEST_COUNT = 10;
 
 static void *ThreadFunc2(void *arg)
 {
-    printf("111111111111111: exit\n");
     exit(254); // 254, exit args
 }
 
@@ -76,7 +75,6 @@ static int ProcessTest001(void)
     ret = pthread_create(&newPthread, NULL, ThreadFunc2, &data);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
-    printf("222222222222222: exit\n");
     exit(255); // 255, exit args
     return 0;
 }

testsuites/unittest/process/basic/process/smoke/process_test_009.cpp

@@ -95,7 +95,7 @@ static int Testcase(void)
         ret = wait(&status);
         status = WEXITSTATUS(status);
         ICUNIT_ASSERT_EQUAL(ret, pid, ret);
-        // ICUNIT_ASSERT_EQUAL(status, 255, status); // 255, assert that function Result is equal to this.
+        ICUNIT_ASSERT_EQUAL(status, 255, status); // 255, assert that function Result is equal to this.
     }
 
     ICUNIT_ASSERT_WITHIN_EQUAL(pid, 0, 100000, pid); // 100000, assert that function Result is equal to this.

tools/build/mk/los_config.mk

@@ -565,8 +565,6 @@ LITEOS_COPTS_BASE   += -fno-aggressive-loop-optimizations
 endif
 
 LITEOS_COPTS_EXTRA  += -std=c99 -Wpointer-arith -Wstrict-prototypes -ffunction-sections -fdata-sections -fno-exceptions -fno-short-enums
-LITEOS_COPTS_EXTRA  += -Wno-strict-prototypes -Wno-deprecated-non-prototype -Wno-unused-but-set-variable
-
 ifeq ($(LOSCFG_ARCH_ARM_AARCH32), y)
 ifneq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
 LITEOS_COPTS_EXTRA  += -mthumb-interwork