bsp/sparc: Move BSP_ISR_handler to a separate file and rename it

This allows it to be wrapped by another function at link-time
and can be used to trace interrupts. If not placed in a separate
file, the function pointer address used in BSP_shared_interrupt_init
will be resolved at compile-time, and the function will not be wrappable.

c/src/lib/libbsp/sparc/Makefile.am

@@ -11,6 +11,7 @@ EXTRA_DIST += shared/start/start.S
 
 # Interrupt
 EXTRA_DIST += shared/irq/irq-shared.c
+EXTRA_DIST += shared/irq/bsp_isr_handler.c
 
 # AMBA Plug&Play bus
 EXTRA_DIST += shared/include/ambapp.h

c/src/lib/libbsp/sparc/erc32/Makefile.am

@@ -71,6 +71,7 @@ include_bsp_HEADERS += \
     include/bsp/irq.h
 libbsp_a_SOURCES += \
     ../../sparc/shared/irq/irq-shared.c \
+    ../../sparc/shared/irq/bsp_isr_handler.c \
     ../../shared/src/irq-default-handler.c \
     ../../shared/src/irq-generic.c \
     ../../shared/src/irq-info.c \

c/src/lib/libbsp/sparc/erc32/include/bsp.h

@@ -106,6 +106,9 @@ typedef void (*bsp_shared_isr)(void *arg);
 /* Initializes the Shared System Interrupt service */
 extern void BSP_shared_interrupt_init(void);
 
+/* Called directly from IRQ trap handler TRAP[0x10..0x1F] = IRQ[0..15] */
+void bsp_isr_handler(rtems_vector_number vector);
+
 /* Registers a shared IRQ handler, and enable it at IRQ controller. Multiple
  * interrupt handlers may use the same IRQ number, all ISRs will be called
  * when an interrupt on that line is fired.

c/src/lib/libbsp/sparc/leon2/Makefile.am

@@ -80,6 +80,7 @@ include_bsp_HEADERS += \
     include/bsp/irq.h
 libbsp_a_SOURCES += \
     ../../sparc/shared/irq/irq-shared.c \
+    ../../sparc/shared/irq/bsp_isr_handler.c \
     ../../shared/src/irq-default-handler.c \
     ../../shared/src/irq-generic.c \
     ../../shared/src/irq-info.c \

c/src/lib/libbsp/sparc/leon2/include/bsp.h

@@ -130,6 +130,9 @@ typedef void (*bsp_shared_isr)(void *arg);
 /* Initializes the Shared System Interrupt service */
 extern void BSP_shared_interrupt_init(void);
 
+/* Called directly from IRQ trap handler TRAP[0x10..0x1F] = IRQ[0..15] */
+void bsp_isr_handler(rtems_vector_number vector);
+
 /* Registers a shared IRQ handler, and enable it at IRQ controller. Multiple
  * interrupt handlers may use the same IRQ number, all ISRs will be called
  * when an interrupt on that line is fired.

c/src/lib/libbsp/sparc/leon3/Makefile.am

@@ -82,6 +82,7 @@ include_bsp_HEADERS += \
 libbsp_a_SOURCES += \
     startup/eirq.c \
     ../../sparc/shared/irq/irq-shared.c \
+    ../../sparc/shared/irq/bsp_isr_handler.c \
     ../../shared/src/irq-default-handler.c \
     ../../shared/src/irq-generic.c \
     ../../shared/src/irq-info.c \

c/src/lib/libbsp/sparc/leon3/include/bsp.h

@@ -153,6 +153,9 @@ typedef void (*bsp_shared_isr)(void *arg);
 /* Initializes the Shared System Interrupt service */
 extern void BSP_shared_interrupt_init(void);
 
+/* Called directly from IRQ trap handler TRAP[0x10..0x1F] = IRQ[0..15] */
+void bsp_isr_handler(rtems_vector_number vector);
+
 /* Registers a shared IRQ handler, and enable it at IRQ controller. Multiple
  * interrupt handlers may use the same IRQ number, all ISRs will be called
  * when an interrupt on that line is fired.

c/src/lib/libbsp/sparc/shared/irq/bsp_isr_handler.c

@@ -0,0 +1,35 @@
+/*
+*  COPYRIGHT (c) 2015
+*  Cobham Gaisler
+*
+*  The license and distribution terms for this file may be
+*  found in the file LICENSE in this distribution or at
+*  http://www.rtems.org/license/LICENSE.
+*
+*/
+
+#include <rtems.h>
+#include <bsp.h>
+#include <bsp/irq-generic.h>
+
+static inline void bsp_dispatch_irq(int irq)
+{
+  bsp_interrupt_handler_entry *e =
+    &bsp_interrupt_handler_table[bsp_interrupt_handler_index(irq)];
+
+  while (e != NULL) {
+    (*e->handler)(e->arg);
+    e = e->next;
+  }
+}
+
+/* Called directly from IRQ trap handler TRAP[0x10..0x1F] = IRQ[0..15] */
+void bsp_isr_handler(rtems_vector_number vector)
+{
+  int irq = vector - 0x10;
+
+  /* Let BSP fixup and/or handle incomming IRQ */
+  irq = bsp_irq_fixup(irq);
+
+  bsp_dispatch_irq(irq);
+}

c/src/lib/libbsp/sparc/shared/irq/irq-shared.c

@@ -1,3 +1,13 @@
+/*
+*  COPYRIGHT (c) 2012-2015
+*  Cobham Gaisler
+*
+*  The license and distribution terms for this file may be
+*  found in the file LICENSE in this distribution or at
+*  http://www.rtems.org/license/LICENSE.
+*
+*/
+
 #include <rtems.h>
 #include <bsp.h>
 #include <bsp/irq-generic.h>
@@ -27,28 +37,6 @@ static inline int bsp_irq_cpu(int irq)
 }
 #endif
 
-static inline void bsp_dispatch_irq(int irq)
-{
-  bsp_interrupt_handler_entry *e =
-    &bsp_interrupt_handler_table[bsp_interrupt_handler_index(irq)];
-
-  while (e != NULL) {
-    (*e->handler)(e->arg);
-    e = e->next;
-  }
-}
-
-/* Called directly from IRQ trap handler TRAP[0x10..0x1F] = IRQ[0..15] */
-static void BSP_ISR_handler(rtems_vector_number vector)
-{
-  int irq = vector - 0x10;
-
-  /* Let BSP fixup and/or handle incomming IRQ */
-  irq = bsp_irq_fixup(irq);
-
-  bsp_dispatch_irq(irq);
-}
-
 /* Initialize interrupts */
 void BSP_shared_interrupt_init(void)
 {
@@ -64,7 +52,7 @@ void BSP_shared_interrupt_init(void)
       continue;
 #endif
     vector = SPARC_ASYNCHRONOUS_TRAP(i) + 0x10;
-    rtems_interrupt_catch(BSP_ISR_handler, vector, &previous_isr);
+    rtems_interrupt_catch(bsp_isr_handler, vector, &previous_isr);
   }
 
   /* Initalize interrupt support */