From 8ad0f6f31ccfc0e736a78eeb1acad9201c23b3ab Mon Sep 17 00:00:00 2001
From: Bogdan Marinescu <bogdan.marinescu@gmail.com>
Date: Sat, 2 Aug 2008 17:59:47 +0000
Subject: [PATCH] added option for arm/thumb mode

---
 src/platform/at91sam7x/conf.py | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/platform/at91sam7x/conf.py b/src/platform/at91sam7x/conf.py
index f1c33e4e..84ba6dcf 100644
--- a/src/platform/at91sam7x/conf.py
+++ b/src/platform/at91sam7x/conf.py
@@ -1,6 +1,6 @@
 # Configuration file for the AT91SAM7X(256/512) backend
 
-cpumode = ARGUMENTS.get( 'cpumode', 'arm' ).lower()
+cpumode = ARGUMENTS.get( 'cpumode', 'thumb' ).lower()
 
 specific_files = "board_cstartup.s board_lowlevel.c board_memories.c usart.c pmc.c pio.c platform.c tc.c"
 if cputype == 'at91sam7x256':
@@ -11,15 +11,24 @@ else:
   print "Invalid AT91SAM7X CPU %s", cputype
   sys.exit( -1 )  
   
+# Check CPU mode
+if cpumode == 'arm':
+  modeflag = ''
+elif cpumode == 'thumb':
+  modeflag = '-mthumb'
+else:
+  print "Invalid CPU mode %s", cpumode
+  sys.exit( -1 )
+  
 # Prepend with path
 specific_files = " ".join( [ "src/platform/%s/%s" % ( platform, f ) for f in specific_files.split() ] )
 ldscript = "src/platform/%s/%s" % ( platform, ldscript )
 
 # Toolset data
 tools[ 'at91sam7x' ] = {}
-tools[ 'at91sam7x' ][ 'cccom' ] = "arm-elf-gcc -mcpu=arm7tdmi -mthumb %s %s -ffunction-sections -fdata-sections %s -Wall -c $SOURCE -o $TARGET" % ( opt, local_include, cdefs )
-tools[ 'at91sam7x' ][ 'linkcom' ] = "arm-elf-gcc -nostartfiles -nostdlib -mthumb -T %s -Wl,--gc-sections -Wl,-e,entry -Wl,--allow-multiple-definition -o $TARGET $SOURCES %s -lc -lgcc -lm" % ( ldscript, local_libs )
-tools[ 'at91sam7x' ][ 'ascom' ] = "arm-elf-gcc -x assembler-with-cpp %s -mcpu=arm7tdmi -mthumb %s -D__ASSEMBLY__ -Wall -c $SOURCE -o $TARGET" % ( local_include, cdefs )
+tools[ 'at91sam7x' ][ 'cccom' ] = "arm-elf-gcc -mcpu=arm7tdmi %s %s %s -ffunction-sections -fdata-sections %s -Wall -c $SOURCE -o $TARGET" % ( modeflag, opt, local_include, cdefs )
+tools[ 'at91sam7x' ][ 'linkcom' ] = "arm-elf-gcc -nostartfiles -nostdlib %s -T %s -Wl,--gc-sections -Wl,-e,entry -Wl,--allow-multiple-definition -o $TARGET $SOURCES %s -lc -lgcc -lm" % ( modeflag, ldscript, local_libs )
+tools[ 'at91sam7x' ][ 'ascom' ] = "arm-elf-gcc -x assembler-with-cpp %s -mcpu=arm7tdmi %s %s -D__ASSEMBLY__ -Wall -c $SOURCE -o $TARGET" % ( local_include, modeflag, cdefs )
 
 # Programming function for LPC2888
 def progfunc_at91sam7x( target, source, env ):