Added scons scripts.

Rename and updated libcpu/avr32/uc3/exception.x (with .irp macro) to exception_gcc.S (without .irp macro) for better compatibility.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1613 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/avr32uc3b0/SConscript

@@ -0,0 +1,11 @@
+import rtconfig
+Import('RTT_ROOT')
+from building import *
+
+src_bsp = ['application.c', 'startup.c', 'board.c']
+
+src	= File(src_bsp)
+CPPPATH = [RTT_ROOT + '/bsp/avr32uc3b0']
+group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')

bsp/avr32uc3b0/SConstruct

@@ -0,0 +1,31 @@
+import os
+import sys
+import rtconfig
+ 
+RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from building import *
+ 
+TARGET = 'rtthread-' + rtconfig.ARCH + '.' + rtconfig.TARGET_EXT
+ 
+env = Environment(tools = ['mingw'],
+   AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+   CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+   AR = rtconfig.AR, ARFLAGS = '-rc',
+   LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+ 
+Export('RTT_ROOT')
+Export('rtconfig')
+ 
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
+ 
+# AVR32 software framework building script
+objs = objs + SConscript(RTT_ROOT + '/bsp/avr32uc3b0/SOFTWARE_FRAMEWORK/SConscript', variant_dir='bsp/SOFTWARE_FRAMEWORK', duplicate=0)
+ 
+# build program
+env.Program(TARGET, objs)
+ 
+# end building
+EndBuilding(TARGET)

bsp/avr32uc3b0/SOFTWARE_FRAMEWORK/SConscript

@@ -0,0 +1,30 @@
+import rtconfig
+Import('RTT_ROOT')
+from building import *
+
+cwd = GetCurrentDir()
+
+src = Split("""
+DRIVERS/FLASHC/flashc.c
+DRIVERS/GPIO/gpio.c
+DRIVERS/INTC/intc.c
+DRIVERS/PM/pm.c
+DRIVERS/PM/pm_conf_clocks.c
+DRIVERS/PM/power_clocks_lib.c
+DRIVERS/USART/usart.c
+""")
+
+CPPPATH = [
+    cwd + '/BOARDS',
+    cwd + '/UTILS',
+    cwd + '/UTILS/PREPROCESSOR',
+    cwd + '/DRIVERS/FLASHC',
+    cwd + '/DRIVERS/GPIO',
+    cwd + '/DRIVERS/INTC',
+    cwd + '/DRIVERS/PM',
+    cwd + '/DRIVERS/USART',
+]
+
+group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')

bsp/avr32uc3b0/rtconfig.py

@@ -0,0 +1,42 @@
+
+# toolchains options
+ARCH     = 'avr32'
+CPU      = 'uc3'
+PART     = 'uc3b0256'
+BOARD    = 'USERBOARD'
+
+CROSS_TOOL 	= 'gcc'
+
+if  CROSS_TOOL == 'gcc':
+	PLATFORM 	= 'gcc'
+	EXEC_PATH 	= 'C:/Program Files/Atmel/AVR Tools/AVR Toolchain/bin'
+#BUILD = 'debug'
+BUILD = 'release'
+
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX = 'avr32-'
+    CC = PREFIX + 'gcc'
+    AS = PREFIX + 'gcc'
+    AR = PREFIX + 'ar'
+    LINK = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY = PREFIX + 'objcopy'
+
+    DEVICE = ' -mpart=' + PART
+    CFLAGS = DEVICE + ' -DBOARD=' + BOARD + ' -fmessage-length=0 -ffunction-sections -masm-addr-pseudos'
+    AFLAGS = ' -c -x assembler-with-cpp' + DEVICE
+    LFLAGS = DEVICE + ' -Wl,--gc-sections --rodata-writable -Wl,--direct-data -LSOFTWARE_FRAMEWORK/UTILS/LIBS/NEWLIB_ADDONS -T avr32elf_uc3b0256.lds'
+
+    CPATH = ''
+    LPATH = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O0 -g3 -Wall'
+        AFLAGS += ' -g3'
+    else:
+        CFLAGS += ' -O2 -Wall'
+
+    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'

libcpu/avr32/uc3/exception_gcc.S

@@ -193,12 +193,11 @@ _handle_Supervisor_Call:
 
   .balign 4
 
-  .irp    priority, 0, 1, 2, 3
+_int0:
-_int\priority:
+  mov     r12, 0          // Pass the int_level parameter to the _get_interrupt_handler function.
-  mov     r12, \priority  // Pass the int_level parameter to the _get_interrupt_handler function.
   call    _get_interrupt_handler
   cp.w    r12, 0          // Get the pointer to the interrupt handler returned by the function.
-  breq    _spint\priority // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
+  breq    _spint0         // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
   call    rt_interrupt_enter
   icall   r12
   call    rt_interrupt_leave
@@ -206,15 +205,81 @@ _int\priority:
   lda.w   r12, rt_interrupt_nest		/* Is nested interrupt? */
   ld.w    r11, r12[0]
   cp.w    r11, 0
-  brne    _spint\priority
+  brne    _spint0
   lda.w   r12, rt_thread_switch_interrupt_flag	/* Is thread switch required? */
   ld.w    r11, r12[0]
   cp.w    r11, 1
   breq    rt_hw_context_switch_interrupt_do
-_spint\priority:
+_spint0:
   csrf    AVR32_SR_GM_OFFSET			/* Enable global interrupt */
   rete                    // If this was a spurious interrupt (R12 == NULL), return from event handler.
-  .endr
+
+
+_int1:
+  mov     r12, 1          // Pass the int_level parameter to the _get_interrupt_handler function.
+  call    _get_interrupt_handler
+  cp.w    r12, 0          // Get the pointer to the interrupt handler returned by the function.
+  breq    _spint1         // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
+  call    rt_interrupt_enter
+  icall   r12
+  call    rt_interrupt_leave
+  ssrf    AVR32_SR_GM_OFFSET			/* Disable global interrupt */
+  lda.w   r12, rt_interrupt_nest		/* Is nested interrupt? */
+  ld.w    r11, r12[0]
+  cp.w    r11, 0
+  brne    _spint1
+  lda.w   r12, rt_thread_switch_interrupt_flag	/* Is thread switch required? */
+  ld.w    r11, r12[0]
+  cp.w    r11, 1
+  breq    rt_hw_context_switch_interrupt_do
+_spint1:
+  csrf    AVR32_SR_GM_OFFSET			/* Enable global interrupt */
+  rete                    // If this was a spurious interrupt (R12 == NULL), return from event handler.
+
+
+_int2:
+  mov     r12, 2          // Pass the int_level parameter to the _get_interrupt_handler function.
+  call    _get_interrupt_handler
+  cp.w    r12, 0          // Get the pointer to the interrupt handler returned by the function.
+  breq    _spint2         // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
+  call    rt_interrupt_enter
+  icall   r12
+  call    rt_interrupt_leave
+  ssrf    AVR32_SR_GM_OFFSET			/* Disable global interrupt */
+  lda.w   r12, rt_interrupt_nest		/* Is nested interrupt? */
+  ld.w    r11, r12[0]
+  cp.w    r11, 0
+  brne    _spint2
+  lda.w   r12, rt_thread_switch_interrupt_flag	/* Is thread switch required? */
+  ld.w    r11, r12[0]
+  cp.w    r11, 1
+  breq    rt_hw_context_switch_interrupt_do
+_spint2:
+  csrf    AVR32_SR_GM_OFFSET			/* Enable global interrupt */
+  rete                    // If this was a spurious interrupt (R12 == NULL), return from event handler.
+
+
+_int3:
+  mov     r12, 3          // Pass the int_level parameter to the _get_interrupt_handler function.
+  call    _get_interrupt_handler
+  cp.w    r12, 0          // Get the pointer to the interrupt handler returned by the function.
+  breq    _spint3         // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
+  call    rt_interrupt_enter
+  icall   r12
+  call    rt_interrupt_leave
+  ssrf    AVR32_SR_GM_OFFSET			/* Disable global interrupt */
+  lda.w   r12, rt_interrupt_nest		/* Is nested interrupt? */
+  ld.w    r11, r12[0]
+  cp.w    r11, 0
+  brne    _spint3
+  lda.w   r12, rt_thread_switch_interrupt_flag	/* Is thread switch required? */
+  ld.w    r11, r12[0]
+  cp.w    r11, 1
+  breq    rt_hw_context_switch_interrupt_do
+_spint3:
+  csrf    AVR32_SR_GM_OFFSET			/* Enable global interrupt */
+  rete                    // If this was a spurious interrupt (R12 == NULL), return from event handler.
+
 
 rt_hw_context_switch_interrupt_do:
   mov     r11, 0