[Kernel] Add ARMCC 6.x support.

components/finsh/shell.c

@@ -55,7 +55,9 @@
 static struct rt_thread finsh_thread;
 ALIGN(RT_ALIGN_SIZE)
 static char finsh_thread_stack[FINSH_THREAD_STACK_SIZE];
+struct finsh_shell _shell;
 #endif
+
 struct finsh_shell *shell;
 static char *finsh_prompt_custom = RT_NULL;
 
@@ -473,9 +475,6 @@ static void shell_push_history(struct finsh_shell *shell)
 }
 #endif
 
-#ifndef RT_USING_HEAP
-struct finsh_shell _shell;
-#endif
 void finsh_thread_entry(void *parameter)
 {
     char ch;
@@ -792,7 +791,7 @@ int finsh_system_init(void)
     rt_thread_t tid;
 
 #ifdef FINSH_USING_SYMTAB
-#ifdef __CC_ARM                 /* ARM C Compiler */
+#if defined(__CC_ARM) || defined(__CLANG_ARM)          /* ARM C Compiler */
     extern const int FSymTab$$Base;
     extern const int FSymTab$$Limit;
     extern const int VSymTab$$Base;
@@ -867,4 +866,3 @@ int finsh_system_init(void)
     return 0;
 }
 INIT_APP_EXPORT(finsh_system_init);
-

components/libc/compilers/armlibc/mem_std.c

@@ -16,8 +16,11 @@
 #include "rtthread.h"
 
 #ifdef RT_USING_HEAP
+
+#ifdef __CC_ARM
 /* avoid the heap and heap-using library functions supplied by arm */
 #pragma import(__use_no_heap)
+#endif
 
 void *malloc(size_t n)
 {

components/libc/compilers/armlibc/stubs.c

@@ -37,7 +37,11 @@
 #include "dfs_posix.h"
 #endif
 
+#ifdef __CLANG_ARM
+__asm(".global __use_no_semihosting\n\t");
+#else
 #pragma import(__use_no_semihosting_swi)
+#endif
 
 /* Standard IO device handles. */
 #define STDIN       0

components/net/lwip-2.0.2/src/arch/include/arch/cc.h

@@ -46,7 +46,7 @@
 #define X32_F "lx"
 
 #ifdef RT_USING_LIBC
-#if defined(__CC_ARM) || defined(__IAR_SYSTEMS_ICC__)
+#if defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__IAR_SYSTEMS_ICC__)
 #include <sys/errno.h>
 #else
 #include <errno.h>