* rtems/score/cpu.h: Fix for inline asm in _CPU_Fatal_halt().

* rtems/asm.h: Added macro to define ARM functions.
	* cpu_asm.S, arm_exc_handler_low.S: Use macro from above.

cpukit/score/cpu/arm/ChangeLog

@@ -1,3 +1,9 @@
+2009-09-15	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* rtems/score/cpu.h: Fix for inline asm in _CPU_Fatal_halt().
+	* rtems/asm.h: Added macro to define ARM functions.
+	* cpu_asm.S, arm_exc_handler_low.S: Use macro from above.
+
 2009-08-19	Joel Sherrill <joel.sherrill@OARcorp.com>
 
 	* rtems/score/cpu.h: Mark _CPU_Context_restore() as noreturn so the

cpukit/score/cpu/arm/arm_exc_handler_low.S

@@ -27,28 +27,10 @@
 #include <rtems/asm.h>
 #include <rtems/score/cpu_asm.h>
 
-/*
- *  function declaration macro (start body in ARM mode)
- */
-#ifdef __thumb__
-  #define FUNC_START_ARM(_name_)              \
-    .code   16                              ;\
-    .thumb_func                             ;\
-    .globl _name_                           ;\
-_name_:                                         ;\
-     bx      pc                              ;\
-     .code   32                              ;\
-_name_ ## _ARM:
-#else
-  #define FUNC_START_ARM(_name_) \
-     .globl _name_; \
-_name_: 
-#endif
-
         .text
 
 /* FIXME:       _Exception_Handler_Undef_Swi is untested */
-FUNC_START_ARM(_Exception_Handler_Undef_Swi)
+DEFINE_FUNCTION_ARM(_Exception_Handler_Undef_Swi)
 /* FIXME: This should use load and store multiple instructions */
 	sub     r13,r13,#SIZE_REGS
 	str     r4,  [r13, #REG_R4]
@@ -84,7 +66,7 @@ _go_back_1:
 	movs	pc,r14			/* return  */ 
 	
 /* FIXME:       _Exception_Handler_Abort is untested */
-FUNC_START_ARM(_Exception_Handler_Abort)
+DEFINE_FUNCTION_ARM(_Exception_Handler_Abort)
 /* FIXME: This should use load and store multiple instructions */
 	sub     r13,r13,#SIZE_REGS
 	str     r4,  [r13, #REG_R4]
@@ -127,7 +109,7 @@ _go_back_2:
 #define ABORT_REGS_OFFS 32-REG_R4
 #define ABORT_SIZE_REGS SIZE_REGS+ABORT_REGS_OFFS
 	
-FUNC_START_ARM(_exc_data_abort)
+DEFINE_FUNCTION_ARM(_exc_data_abort)
 	sub	sp, sp, #ABORT_SIZE_REGS	/* reserve register frame */
 	stmia	sp, {r0-r11}
 	add	sp, sp, #ABORT_REGS_OFFS	/* the Context_Control structure starts by CPSR, R4, ... */

cpukit/score/cpu/arm/cpu_asm.S

@@ -22,24 +22,6 @@
 #include <rtems/asm.h>
 #include <rtems/score/cpu_asm.h>
 
-/*
- *  function declaration macro (start body in ARM mode)
- */
-#ifdef __thumb__
-  #define FUNC_START_ARM(_name_)              \
-    .code   16                              ;\
-    .thumb_func                             ;\
-    .globl _name_                           ;\
-_name_:                                         ;\
-     bx      pc                              ;\
-     .code   32                              ;\
-_name_ ## _ARM:
-#else
-  #define FUNC_START_ARM(_name_) \
-     .globl _name_; \
-_name_: 
-#endif
-
         .text
 
 /*
@@ -58,7 +40,7 @@ _name_:
  *        
  */
  
-FUNC_START_ARM(_CPU_Context_switch)
+DEFINE_FUNCTION_ARM(_CPU_Context_switch)
 /* Start saving context */
 	mrs	r2, cpsr
 	stmia	r0,  {r2, r4, r5, r6, r7, r8, r9, r10, r11, r13, r14}
@@ -81,6 +63,6 @@ _restore:
  *  It must match _CPU_Context_switch()
  *
  */
-FUNC_START_ARM(_CPU_Context_restore)
+DEFINE_FUNCTION_ARM(_CPU_Context_restore)
         mov     r1, r0
         b       _restore

cpukit/score/cpu/arm/rtems/asm.h

@@ -132,4 +132,13 @@
 #define PUBLIC(sym) .globl SYM (sym)
 #define EXTERN(sym) .globl SYM (sym)
 
+#ifdef __thumb__
+  #define DEFINE_FUNCTION_ARM(name) \
+    .thumb_func ; .globl name ; name: ; bx pc ; \
+    .arm ; .globl name ## _arm ; name ## _arm:
+#else
+  #define DEFINE_FUNCTION_ARM(name) \
+    .globl name ; name: ; .globl name ## _arm ; name ## _arm:
 #endif
+
+#endif /* _RTEMS_ASM_H */

cpukit/score/cpu/arm/rtems/score/cpu.h

@@ -336,9 +336,10 @@ void _CPU_Context_Initialize(
     *(*(_destination)) = _CPU_Null_fp_context; \
   } while (0)
 
-#define _CPU_Fatal_halt( _error )           \
+#define _CPU_Fatal_halt( _err )             \
    do {                                     \
-     int _level;                            \
+     uint32_t _level;                       \
+     uint32_t _error = _err;                \
      _CPU_ISR_Disable( _level );            \
      asm volatile ("mov r0, %0\n"           \
                    : "=r" (_error)          \