Add support for Windows GCC to lpc2148 and str711

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1875 42af7a65-404d-4744-a932-0658087f49c3

configs/eagle100/README.txt

@@ -28,7 +28,8 @@ GNU Toolchain Options
 
   All testing has been conducted using the NuttX buildroot toolchain.  However,
   the make system is setup to default to use the devkitARM toolchain.  To use
-  the CodeSource GNU toolchain, you simply need to build the system as follows:
+  the CodeSourcery or devkitARM GNU toolchain, you simply need to build the
+  system as follows:
 
      make                         # Will build for the devkitARM toolchain
      make CROSSDEV=arm-eabi-      # Will build for the devkitARM toolchain

configs/eagle100/httpd/ld.script

@@ -56,7 +56,6 @@ SECTIONS
 		*(.text .text.*)        
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
 		*(.rodata .rodata.*)        
 		*(.gnu.linkonce.t.*)
 		*(.glue_7)

configs/eagle100/nettest/ld.script

@@ -56,7 +56,6 @@ SECTIONS
 		*(.text .text.*)        
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
 		*(.rodata .rodata.*)        
 		*(.gnu.linkonce.t.*)
 		*(.glue_7)

configs/eagle100/nsh/ld.script

@@ -56,7 +56,6 @@ SECTIONS
 		*(.text .text.*)        
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
 		*(.rodata .rodata.*)        
 		*(.gnu.linkonce.t.*)
 		*(.glue_7)

configs/eagle100/ostest/ld.script

@@ -56,7 +56,6 @@ SECTIONS
 		*(.text .text.*)        
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
 		*(.rodata .rodata.*)        
 		*(.gnu.linkonce.t.*)
 		*(.glue_7)

configs/mcu123-lpc214x/README.txt

@@ -1,6 +1,110 @@
 README
 ^^^^^^
 
+Development Environment
+^^^^^^^^^^^^^^^^^^^^^^^
+
+  Either Linux or Cygwin on Windows can be used for the development environment.
+  The source has been built only using the GNU toolchain (see below).  Other
+  toolchains will likely cause problems.
+
+GNU Toolchain Options
+^^^^^^^^^^^^^^^^^^^^^
+
+  The NuttX make system has been modified to support the following different
+  toolchain options.
+
+  1. The NuttX buildroot Toolchain (see below).
+  2. The CodeSourcery GNU toolchain,
+  3. The devkitARM GNU toolchain, or
+ 
+  All testing has been conducted using the NuttX buildroot toolchain.  To use
+  the CodeSourcery or devkitARM GNU toolchain, you simply need to build the
+  system as follows:
+
+     make                         # Will build for the NuttX buildroot toolchain
+     make CROSSDEV=arm-eabi-      # Will build for the devkitARM toolchain
+     make CROSSDEV=arm-none-eabi- # Will build for the CodeSourcery toolchain
+     make CROSSDEV=arm-elf-       # Will build for the NuttX buildroot toolchain
+
+  Of course, hard coding this CROSS_COMPILE value in Make.defs file will save
+  some repetitive typing.
+
+  NOTE: the CodeSourcery and devkitARM toolchains are Windows native toolchains.
+  The NuttX buildroot toolchain is a Cygwin toolchain.  There are several limitations
+  to using a Windows based toolchain in a Cygwin environment.  The three biggest are:
+
+  1. The Windows toolchain cannot follow Cygwin paths.  Path conversions are
+     performed automatically in the Cygwin makefiles using the 'cygpath' utility
+     but you might easily find some new path problems.  If so, check out 'cygpath -w'
+
+  2. Windows toolchains cannot follow Cygwin symbolic links.  Many symbolic links
+     are used in Nuttx (e.g., include/arch).  The make system works around these
+     problems for the Windows tools by copying directories instead of linking them.
+     But this can also cause some confusion for you:  For example, you may edit
+     a file in a "linked" directory and find that your changes had not effect.
+     That is because you are building the copy of the file in the "fake" symbolic
+     directory.  If you use a Windows toolchain, you should get in the habit of
+     making like this:
+
+       make clean_context; make CROSSDEV=arm-none-eabi-
+
+     An alias in your .bashrc file might make that less painful.
+
+  3. Dependencies are not made when using Windows versions of the GCC.  This is
+     because the dependencies are generated using Windows pathes which do not
+     work with the Cygwin make.
+
+     Support has been added for making dependencies with the CodeSourcery toolchain.
+     That support can be enabled by modifying your Make.defs file as follows:
+
+    -  MKDEP                = $(TOPDIR)/tools/mknulldeps.sh
+    +  MKDEP                = $(TOPDIR)/tools/mkdeps.sh --winpaths "$(TOPDIR)"
+
+     If you have problems with the dependency build (for example, if you are not
+     building on C:), then you may need to modify tools/mkdeps.sh
+
+  NOTE: The CodeSourcery toolchain (2009q1) may not work with default optimization
+  level of -Os (See Make.defs).  It will work with -O0, -O1, or -O2, but not with
+  -Os.
+
+NuttX buildroot Toolchain
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  A GNU GCC-based toolchain is assumed.  The files */setenv.sh should
+  be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
+  different from the default in your PATH variable).
+
+  If you have no Cortex-M3 toolchain, one can be downloaded from the NuttX
+  SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573).
+  This GNU toolchain builds and executes in the Cygwin environment.
+
+  1. You must have already configured Nuttx in <some-dir>/nuttx.
+
+     cd tools
+     ./configure.sh eagle100/<sub-dir>
+
+  2. Download the latest buildroot package into <some-dir>
+
+  3. unpack the buildroot tarball.  The resulting directory may
+     have versioning information on it like buildroot-x.y.z.  If so,
+     rename <some-dir>/buildroot-x.y.z to <some-dir>/buildroot.
+
+  4. cd <some-dir>/buildroot
+
+  5. cp configs/cortexm3-defconfig-4.3.3 .config
+
+  6. make oldconfig
+
+  7. make
+
+  8. Edit setenv.h, if necessary, so that the PATH variable includes
+     the path to the newly built binaries.
+
+  See the file configs/README.txt in the buildroot source tree.  That has more
+  detailed PLUS some special instructions that you will need to follow if you are
+  building a Cortex-M3 toolchain for Cygwin under Windows.
+
 Toolchain
 ^^^^^^^^^
 

configs/mcu123-lpc214x/nsh/Make.defs

@@ -1,7 +1,7 @@
 ##############################################################################
 # configs/mcu123-lpc214x/nsh/Make.defs
 #
-#   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,15 @@
 
 include ${TOPDIR}/.config
 
+# The default value for CROSSDEV can be overridden from the make command line:
+#   make                         -- Will build for the NuttX buildroot toolchain
+#   make CROSSDEV=arm-eabi-      -- Will build for the devkitARM toolchain
+#   make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
+#   make CROSSDEV=arm-elf-       -- Will build for the NuttX buildroot toolchain
+
 CROSSDEV		= arm-elf-
 CC			= $(CROSSDEV)gcc
+CXX			= $(CROSSDEV)g++
 CPP			= $(CROSSDEV)gcc -E
 LD			= $(CROSSDEV)ld
 AR			= $(CROSSDEV)ar rcs
@@ -58,23 +65,41 @@ endif
 ifeq ("${CONFIG_DEBUG}","y")
   ARCHOPTIMIZATION	= -g
 else
-  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
-			  -fomit-frame-pointer
 endif
 
 ifeq ($(ARCHCCMAJOR),4)
-  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft -fno-builtin
+  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float
 endif
+
+ifeq ($(CROSSDEV),arm-elf-)
+  MKDEP			= $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES	= -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script
+else
+  WINTOOL		= y
+  DIRLINK		= $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK		= $(TOPDIR)/tools/unlink.sh
+  MKDEP			= $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES		= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES	= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT		= -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script}"
+endif
+
+ARCHCFLAGS		= -fno-builtin
+ARCHCXXFLAGS		= -fno-builtin -fno-exceptions
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX		= -Wall -Wshadow
 ARCHDEFINES		=
-ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
-ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script
 
-CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+CFLAGS			= $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CXXFLAGS		= $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
 CPPFLAGS		= $(ARCHINCLUDES) $(ARCHDEFINES)
 AFLAGS			= $(CFLAGS) -D__ASSEMBLY__
 
@@ -82,7 +107,10 @@ OBJEXT			= .o
 LIBEXT			= .a
 EXEEXT			=
 
-ifeq ("${CONFIG_DEBUG}","y")
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS		+= -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG),y)
   LDFLAGS		+= -g
 endif
 
@@ -96,6 +124,11 @@ define COMPILE
 	@$(CC) -c $(CFLAGS) $1 -o $2
 endef
 
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
 define ASSEMBLE
 	@echo "AS: $1"
 	@$(CC) -c $(AFLAGS) $1 -o $2
@@ -110,10 +143,8 @@ define CLEAN
 	@rm -f *.o *.a
 endef
 
-MKDEP			= $(TOPDIR)/tools/mkdeps.sh
-
 HOSTCC			= gcc
 HOSTINCLUDES		= -I.
-HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
 HOSTLDFLAGS		=
 

configs/mcu123-lpc214x/nsh/defconfig

@@ -1,7 +1,7 @@
 ############################################################################
 # configs/mcu123-lpc214x/nsh/defconfig
 #
-#   Copyright (C) 2008, 2009 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -577,6 +577,7 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
 #   operation from FLASH but must copy initialized .data sections to RAM.
+#   (Must always =n; the LPC214x always runs from FLASH)
 # CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
 #   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
@@ -594,7 +595,7 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_RUNFROMFLASH=n
 CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=

configs/mcu123-lpc214x/nsh/ld.script

@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/mcu123-lpc214x/nsh/ld.script
  *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,59 +33,75 @@
  *
  ****************************************************************************/
 
+/* FLASH:
+ *   The lpc2148 has 512Kb of non-volatile memory beginning at address
+ *   0x00000000.  The OS entry point is via the reset vector at address
+ *   0x00000000 (default MEMMAP mode assumed)
+ *
+ * SRAM:
+ *   The lpc2148 has 32Kb of on-chip static RAM beginning at address
+ *   0x40000000.  The .data section will be relocated from _eronly
+ *   to _sdata at boot time.
+ */
+
 MEMORY
 {
-	flash	(rx) : ORIGIN = 0, LENGTH = 500K
+	flash (rx) : ORIGIN = 0x00000000, LENGTH = 500K
-	ram	(rw) : ORIGIN = 0x40000000, LENGTH = 32K - 32
+	sram  (rw) : ORIGIN = 0x40000000, LENGTH = 32K - 32
 }
 
 OUTPUT_ARCH(arm)
 ENTRY(_stext)
 SECTIONS
 {
-	/* The lpc2148 has 512Kb of non-volatile memory beginning at address
-	 * 0x00000000.  The OS entry point is via the reset vector at address
-	 * 0x00000000 (default MEMMAP mode assumed)
-	 */
-
 	.text : {
 		_stext = ABSOLUTE(.);
-		*(.text)
+		*(.vectors)
+		*(.text .text.*)
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
+		*(.rodata .rodata.*)
-		*(.rodata.str1.4)
+		*(.gnu.linkonce.t.*)
 		*(.glue_7)
 		*(.glue_7t)
-		*(.got)			/* Global offset table		*/
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
 	} > flash
-	_eronly = ABSOLUTE(.);		/* This is where the .data section
-					 * is relocated for execution out
-					 * FLASH */
 
-	/* The lpc2148 has 32Kb of on-chip static RAM beginning at address
+	/* This is where the .data section is relocated for execution out
-	 * 0x40000000.  The .data section will be relocated from _eronly
+	 * FLASH.  The .data section will be relocated from _eronly
 	 * to _sdata at boot time.
 	 */
 
+	_eronly = ABSOLUTE(.);	
+	
 	.data : {
 		_sdata = ABSOLUTE(.);
-		*(.data)
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
 		CONSTRUCTORS
 		_edata = ABSOLUTE(.);
-	} >ram AT>flash
+	} > sram AT > flash
 
-	. = ALIGN(32 / 8);
+	.ARM.extab : {
-	.bss : {			/* BSS				*/
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} >sram
+
+	.bss : {
 		_sbss = ABSOLUTE(.);
-		*(.bss)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
-	}
+	} > sram
 
-	. = ALIGN(32 / 8);
+	/* Stabs debugging sections.	*/
-					/* Stabs debugging sections.	*/
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }

configs/mcu123-lpc214x/ostest/Make.defs

@@ -1,7 +1,7 @@
 ##############################################################################
 # configs/mcu123-lpc214x/ostest/Make.defs
 #
-#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,15 @@
 
 include ${TOPDIR}/.config
 
+# The default value for CROSSDEV can be overridden from the make command line:
+#   make                         -- Will build for the NuttX buildroot toolchain
+#   make CROSSDEV=arm-eabi-      -- Will build for the devkitARM toolchain
+#   make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
+#   make CROSSDEV=arm-elf-       -- Will build for the NuttX buildroot toolchain
+
 CROSSDEV		= arm-elf-
 CC			= $(CROSSDEV)gcc
+CXX			= $(CROSSDEV)g++
 CPP			= $(CROSSDEV)gcc -E
 LD			= $(CROSSDEV)ld
 AR			= $(CROSSDEV)ar rcs
@@ -58,23 +65,41 @@ endif
 ifeq ("${CONFIG_DEBUG}","y")
   ARCHOPTIMIZATION	= -g
 else
-  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
-			  -fomit-frame-pointer
 endif
 
 ifeq ($(ARCHCCMAJOR),4)
-  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft -fno-builtin
+  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float
 endif
+
+ifeq ($(CROSSDEV),arm-elf-)
+  MKDEP			= $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES	= -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script
+else
+  WINTOOL		= y
+  DIRLINK		= $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK		= $(TOPDIR)/tools/unlink.sh
+  MKDEP			= $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES		= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES	= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT		= -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script}"
+endif
+
+ARCHCFLAGS		= -fno-builtin
+ARCHCXXFLAGS		= -fno-builtin -fno-exceptions
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX		= -Wall -Wshadow
 ARCHDEFINES		=
-ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
-ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script
 
-CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+CFLAGS			= $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CXXFLAGS		= $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
 CPPFLAGS		= $(ARCHINCLUDES) $(ARCHDEFINES)
 AFLAGS			= $(CFLAGS) -D__ASSEMBLY__
 
@@ -82,7 +107,10 @@ OBJEXT			= .o
 LIBEXT			= .a
 EXEEXT			=
 
-ifeq ("${CONFIG_DEBUG}","y")
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS		+= -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG),y)
   LDFLAGS		+= -g
 endif
 
@@ -96,6 +124,11 @@ define COMPILE
 	@$(CC) -c $(CFLAGS) $1 -o $2
 endef
 
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
 define ASSEMBLE
 	@echo "AS: $1"
 	@$(CC) -c $(AFLAGS) $1 -o $2
@@ -110,10 +143,8 @@ define CLEAN
 	@rm -f *.o *.a
 endef
 
-MKDEP			= $(TOPDIR)/tools/mkdeps.sh
-
 HOSTCC			= gcc
 HOSTINCLUDES		= -I.
-HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
 HOSTLDFLAGS		=
 

configs/mcu123-lpc214x/ostest/defconfig

@@ -563,6 +563,7 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
 #   operation from FLASH but must copy initialized .data sections to RAM.
+#   (Must always =n; the LPC214x always runs from FLASH)
 # CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
 #   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
@@ -580,7 +581,7 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_RUNFROMFLASH=n
 CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=

configs/mcu123-lpc214x/ostest/ld.script

@@ -33,52 +33,75 @@
  *
  ****************************************************************************/
 
+/* FLASH:
+ *   The lpc2148 has 512Kb of non-volatile memory beginning at address
+ *   0x00000000.  The OS entry point is via the reset vector at address
+ *   0x00000000 (default MEMMAP mode assumed)
+ *
+ * SRAM:
+ *   The lpc2148 has 32Kb of on-chip static RAM beginning at address
+ *   0x40000000.  The .data section will be relocated from _eronly
+ *   to _sdata at boot time.
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x00000000, LENGTH = 500K
+    sram  (rw) : ORIGIN = 0x40000000, LENGTH = 32K - 32
+}
+
 OUTPUT_ARCH(arm)
 ENTRY(_stext)
 SECTIONS
 {
-	/* The lpc2148 has 512Kb of non-volatile memory beginning at address
-	 * 0x00000000.  The OS entry point is via the reset vector at address
-	 * 0x00000000 (default MEMMAP mode assumed)
-	 */
-
-	. = 0x00000000;
 	.text : {
 		_stext = ABSOLUTE(.);
-		*(.text)
+		*(.vectors)
+		*(.text .text.*)
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
+		*(.rodata .rodata.*)
-		*(.rodata.str1.4)
+		*(.gnu.linkonce.t.*)
 		*(.glue_7)
 		*(.glue_7t)
-		*(.got)			/* Global offset table		*/
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
-	}
+	} > flash
-	_eronly = ABSOLUTE(.);		/* This is where the .data section
-					 * is relocated for execution out
-					 * FLASH */
 
-	/* The lpc2148 has 32Kb of on-chip static RAM beginning at address
+	/* This is where the .data section is relocated for execution out
-	 * 0x40000000.  The .data section will be relocated from _eronly
+	 * FLASH.  The .data section will be relocated from _eronly
 	 * to _sdata at boot time.
 	 */
 
-	. = 0x40000000;
+	_eronly = ABSOLUTE(.);	
+	
 	.data : {
 		_sdata = ABSOLUTE(.);
-		*(.data)
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
 		CONSTRUCTORS
 		_edata = ABSOLUTE(.);
-	}
+	} > sram AT > flash
 
-	.bss : {			/* BSS				*/
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} >sram
+
+	.bss : {
 		_sbss = ABSOLUTE(.);
-		*(.bss)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
-	}
+	} > sram
-					/* Stabs debugging sections.	*/
+
+	/* Stabs debugging sections.	*/
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }

configs/mcu123-lpc214x/src/Makefile

@@ -1,7 +1,7 @@
 ############################################################################
 # configs/mcu123-lpc214x/src/Makefile
 #
-#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -36,7 +36,14 @@
 -include $(TOPDIR)/Make.defs
 
 ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
-CFLAGS		+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/arm -I$(TOPDIR)/sched
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/arm}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/sched}"
+else
+  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/arm -I$(TOPDIR)/sched
+endif
 
 ASRCS		= 
 AOBJS		= $(ASRCS:.S=$(OBJEXT))

configs/mcu123-lpc214x/usbserial/Make.defs

@@ -1,7 +1,7 @@
 ##############################################################################
 # configs/mcu123-lpc214x/usbserial/Make.defs
 #
-#   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,15 @@
 
 include ${TOPDIR}/.config
 
+# The default value for CROSSDEV can be overridden from the make command line:
+#   make                         -- Will build for the NuttX buildroot toolchain
+#   make CROSSDEV=arm-eabi-      -- Will build for the devkitARM toolchain
+#   make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
+#   make CROSSDEV=arm-elf-       -- Will build for the NuttX buildroot toolchain
+
 CROSSDEV		= arm-elf-
 CC			= $(CROSSDEV)gcc
+CXX			= $(CROSSDEV)g++
 CPP			= $(CROSSDEV)gcc -E
 LD			= $(CROSSDEV)ld
 AR			= $(CROSSDEV)ar rcs
@@ -58,23 +65,41 @@ endif
 ifeq ("${CONFIG_DEBUG}","y")
   ARCHOPTIMIZATION	= -g
 else
-  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
-			  -fomit-frame-pointer
 endif
 
 ifeq ($(ARCHCCMAJOR),4)
-  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft -fno-builtin
+  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float
 endif
+
+ifeq ($(CROSSDEV),arm-elf-)
+  MKDEP			= $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES	= -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbserial/ld.script
+else
+  WINTOOL		= y
+  DIRLINK		= $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK		= $(TOPDIR)/tools/unlink.sh
+  MKDEP			= $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES		= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES	= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT		= -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbserial/ld.script}"
+endif
+
+ARCHCFLAGS		= -fno-builtin
+ARCHCXXFLAGS		= -fno-builtin -fno-exceptions
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX		= -Wall -Wshadow
 ARCHDEFINES		=
-ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
-ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbserial/ld.script
 
-CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+CFLAGS			= $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CXXFLAGS		= $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
 CPPFLAGS		= $(ARCHINCLUDES) $(ARCHDEFINES)
 AFLAGS			= $(CFLAGS) -D__ASSEMBLY__
 
@@ -82,7 +107,10 @@ OBJEXT			= .o
 LIBEXT			= .a
 EXEEXT			=
 
-ifeq ("${CONFIG_DEBUG}","y")
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS		+= -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG),y)
   LDFLAGS		+= -g
 endif
 
@@ -96,6 +124,11 @@ define COMPILE
 	@$(CC) -c $(CFLAGS) $1 -o $2
 endef
 
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
 define ASSEMBLE
 	@echo "AS: $1"
 	@$(CC) -c $(AFLAGS) $1 -o $2
@@ -110,10 +143,8 @@ define CLEAN
 	@rm -f *.o *.a
 endef
 
-MKDEP			= $(TOPDIR)/tools/mkdeps.sh
-
 HOSTCC			= gcc
 HOSTINCLUDES		= -I.
-HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
 HOSTLDFLAGS		=
 

configs/mcu123-lpc214x/usbserial/defconfig

@@ -1,7 +1,7 @@
 ############################################################################
 # configs/mcu123-lpc214x/usbserial/defconfig
 #
-#   Copyright (C) 2008, 2009 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -584,6 +584,7 @@ CONFIG_EXAMPLES_USBSERIAL_ONLYBIG=n
 #
 # CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
 #   operation from FLASH but must copy initialized .data sections to RAM.
+#   (Must always =n; the LPC214x always runs from FLASH)
 # CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
 #   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
@@ -601,7 +602,7 @@ CONFIG_EXAMPLES_USBSERIAL_ONLYBIG=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_RUNFROMFLASH=n
 CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=

configs/mcu123-lpc214x/usbserial/ld.script

@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/mcu123-lpc214x/usbserial/ld.script
  *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,52 +33,75 @@
  *
  ****************************************************************************/
 
+/* FLASH:
+ *   The lpc2148 has 512Kb of non-volatile memory beginning at address
+ *   0x00000000.  The OS entry point is via the reset vector at address
+ *   0x00000000 (default MEMMAP mode assumed)
+ *
+ * SRAM:
+ *   The lpc2148 has 32Kb of on-chip static RAM beginning at address
+ *   0x40000000.  The .data section will be relocated from _eronly
+ *   to _sdata at boot time.
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x00000000, LENGTH = 500K
+    sram  (rw) : ORIGIN = 0x40000000, LENGTH = 32K - 32
+}
+
 OUTPUT_ARCH(arm)
 ENTRY(_stext)
 SECTIONS
 {
-	/* The lpc2148 has 512Kb of non-volatile memory beginning at address
-	 * 0x00000000.  The OS entry point is via the reset vector at address
-	 * 0x00000000 (default MEMMAP mode assumed)
-	 */
-
-	. = 0x00000000;
 	.text : {
 		_stext = ABSOLUTE(.);
-		*(.text)
+		*(.vectors)
+		*(.text .text.*)
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
+		*(.rodata .rodata.*)
-		*(.rodata.str1.4)
+		*(.gnu.linkonce.t.*)
 		*(.glue_7)
 		*(.glue_7t)
-		*(.got)			/* Global offset table		*/
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
-	}
+	} > flash
-	_eronly = ABSOLUTE(.);		/* This is where the .data section
-					 * is relocated for execution out
-					 * FLASH */
 
-	/* The lpc2148 has 32Kb of on-chip static RAM beginning at address
+	/* This is where the .data section is relocated for execution out
-	 * 0x40000000.  The .data section will be relocated from _eronly
+	 * FLASH.  The .data section will be relocated from _eronly
 	 * to _sdata at boot time.
 	 */
 
-	. = 0x40000000;
+	_eronly = ABSOLUTE(.);	
+	
 	.data : {
 		_sdata = ABSOLUTE(.);
-		*(.data)
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
 		CONSTRUCTORS
 		_edata = ABSOLUTE(.);
-	}
+	} > sram AT > flash
 
-	.bss : {			/* BSS				*/
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} >sram
+
+	.bss : {
 		_sbss = ABSOLUTE(.);
-		*(.bss)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
-	}
+	} > sram
-					/* Stabs debugging sections.	*/
+
+	/* Stabs debugging sections.	*/
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }

configs/mcu123-lpc214x/usbstorage/Make.defs

@@ -1,7 +1,7 @@
 ##############################################################################
 # configs/mcu123-lpc214x/usbstorage/Make.defs
 #
-#   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,15 @@
 
 include ${TOPDIR}/.config
 
+# The default value for CROSSDEV can be overridden from the make command line:
+#   make                         -- Will build for the NuttX buildroot toolchain
+#   make CROSSDEV=arm-eabi-      -- Will build for the devkitARM toolchain
+#   make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
+#   make CROSSDEV=arm-elf-       -- Will build for the NuttX buildroot toolchain
+
 CROSSDEV		= arm-elf-
 CC			= $(CROSSDEV)gcc
+CXX			= $(CROSSDEV)g++
 CPP			= $(CROSSDEV)gcc -E
 LD			= $(CROSSDEV)ld
 AR			= $(CROSSDEV)ar rcs
@@ -58,23 +65,41 @@ endif
 ifeq ("${CONFIG_DEBUG}","y")
   ARCHOPTIMIZATION	= -g
 else
-  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
-			  -fomit-frame-pointer
 endif
 
 ifeq ($(ARCHCCMAJOR),4)
-  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft -fno-builtin
+  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float
 endif
+
+ifeq ($(CROSSDEV),arm-elf-)
+  MKDEP			= $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES	= -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbstorage/ld.script
+else
+  WINTOOL		= y
+  DIRLINK		= $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK		= $(TOPDIR)/tools/unlink.sh
+  MKDEP			= $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES		= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES	= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT		= -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbstorage/ld.script}"
+endif
+
+ARCHCFLAGS		= -fno-builtin
+ARCHCXXFLAGS		= -fno-builtin -fno-exceptions
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX		= -Wall -Wshadow
 ARCHDEFINES		=
-ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
-ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/usbstorage/ld.script
 
-CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+CFLAGS			= $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CXXFLAGS		= $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
 CPPFLAGS		= $(ARCHINCLUDES) $(ARCHDEFINES)
 AFLAGS			= $(CFLAGS) -D__ASSEMBLY__
 
@@ -82,7 +107,10 @@ OBJEXT			= .o
 LIBEXT			= .a
 EXEEXT			=
 
-ifeq ("${CONFIG_DEBUG}","y")
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS		+= -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG),y)
   LDFLAGS		+= -g
 endif
 
@@ -96,6 +124,11 @@ define COMPILE
 	@$(CC) -c $(CFLAGS) $1 -o $2
 endef
 
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
 define ASSEMBLE
 	@echo "AS: $1"
 	@$(CC) -c $(AFLAGS) $1 -o $2
@@ -110,10 +143,8 @@ define CLEAN
 	@rm -f *.o *.a
 endef
 
-MKDEP			= $(TOPDIR)/tools/mkdeps.sh
-
 HOSTCC			= gcc
 HOSTINCLUDES		= -I.
-HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
 HOSTLDFLAGS		=
 

configs/mcu123-lpc214x/usbstorage/defconfig

@@ -1,7 +1,7 @@
 ############################################################################
 # configs/mcu123-lpc214x/usbstorage/defconfig
 #
-#   Copyright (C) 2008, 2009 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -626,6 +626,7 @@ CONFIG_EXAMPLES_USBSTRG_TRACEINTERRUPTS=n
 #
 # CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
 #   operation from FLASH but must copy initialized .data sections to RAM.
+#   (Must always =n; the LPC214x always runs from FLASH)
 # CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
 #   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
@@ -643,7 +644,7 @@ CONFIG_EXAMPLES_USBSTRG_TRACEINTERRUPTS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_RUNFROMFLASH=n
 CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=

configs/mcu123-lpc214x/usbstorage/ld.script

@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/mcu123-lpc214x/usbstorage/ld.script
  *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,52 +33,75 @@
  *
  ****************************************************************************/
 
+/* FLASH:
+ *   The lpc2148 has 512Kb of non-volatile memory beginning at address
+ *   0x00000000.  The OS entry point is via the reset vector at address
+ *   0x00000000 (default MEMMAP mode assumed)
+ *
+ * SRAM:
+ *   The lpc2148 has 32Kb of on-chip static RAM beginning at address
+ *   0x40000000.  The .data section will be relocated from _eronly
+ *   to _sdata at boot time.
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x00000000, LENGTH = 500K
+    sram  (rw) : ORIGIN = 0x40000000, LENGTH = 32K - 32
+}
+
 OUTPUT_ARCH(arm)
 ENTRY(_stext)
 SECTIONS
 {
-	/* The lpc2148 has 512Kb of non-volatile memory beginning at address
-	 * 0x00000000.  The OS entry point is via the reset vector at address
-	 * 0x00000000 (default MEMMAP mode assumed)
-	 */
-
-	. = 0x00000000;
 	.text : {
 		_stext = ABSOLUTE(.);
-		*(.text)
+		*(.vectors)
+		*(.text .text.*)
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
+		*(.rodata .rodata.*)
-		*(.rodata.str1.4)
+		*(.gnu.linkonce.t.*)
 		*(.glue_7)
 		*(.glue_7t)
-		*(.got)			/* Global offset table		*/
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
-	}
+	} > flash
-	_eronly = ABSOLUTE(.);		/* This is where the .data section
-					 * is relocated for execution out
-					 * FLASH */
 
-	/* The lpc2148 has 32Kb of on-chip static RAM beginning at address
+	/* This is where the .data section is relocated for execution out
-	 * 0x40000000.  The .data section will be relocated from _eronly
+	 * FLASH.  The .data section will be relocated from _eronly
 	 * to _sdata at boot time.
 	 */
 
-	. = 0x40000000;
+	_eronly = ABSOLUTE(.);	
+	
 	.data : {
 		_sdata = ABSOLUTE(.);
-		*(.data)
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
 		CONSTRUCTORS
 		_edata = ABSOLUTE(.);
-	}
+	} > sram AT > flash
 
-	.bss : {			/* BSS				*/
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} >sram
+
+	.bss : {
 		_sbss = ABSOLUTE(.);
-		*(.bss)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
-	}
+	} > sram
-					/* Stabs debugging sections.	*/
+
+	/* Stabs debugging sections.	*/
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }

configs/olimex-strp711/README.txt

@@ -57,14 +57,81 @@ Olimex STR-P711
  Jumpers
    STNBY   Will pull pin 23 /STDBY low
 
-Toolchain
+Development Environment
-^^^^^^^^^
+^^^^^^^^^^^^^^^^^^^^^^^
+
+  Either Linux or Cygwin on Windows can be used for the development environment.
+  The source has been built only using the GNU toolchain (see below).  Other
+  toolchains will likely cause problems.
+
+GNU Toolchain Options
+^^^^^^^^^^^^^^^^^^^^^
+
+  The NuttX make system has been modified to support the following different
+  toolchain options.
+
+  1. The NuttX buildroot Toolchain (see below).
+  2. The CodeSourcery GNU toolchain,
+  3. The devkitARM GNU toolchain, or
+
+  All testing has been conducted using the NuttX buildroot toolchain.  To use
+  the CodeSourcery or devkitARM GNU toolchain, you simply need to build the
+  system as follows:
+
+     make                         # Will build for the NuttX buildroot toolchain
+     make CROSSDEV=arm-eabi-      # Will build for the devkitARM toolchain
+     make CROSSDEV=arm-none-eabi- # Will build for the CodeSourcery toolchain
+     make CROSSDEV=arm-elf-       # Will build for the NuttX buildroot toolchain
+
+  Of course, hard coding this CROSS_COMPILE value in Make.defs file will save
+  some repetitive typing.
+
+  NOTE: the CodeSourcery and devkitARM toolchains are Windows native toolchains.
+  The NuttX buildroot toolchain is a Cygwin toolchain.  There are several limitations
+  to using a Windows based toolchain in a Cygwin environment.  The three biggest are:
+
+  1. The Windows toolchain cannot follow Cygwin paths.  Path conversions are
+     performed automatically in the Cygwin makefiles using the 'cygpath' utility
+     but you might easily find some new path problems.  If so, check out 'cygpath -w'
+
+  2. Windows toolchains cannot follow Cygwin symbolic links.  Many symbolic links
+     are used in Nuttx (e.g., include/arch).  The make system works around these
+     problems for the Windows tools by copying directories instead of linking them.
+     But this can also cause some confusion for you:  For example, you may edit
+     a file in a "linked" directory and find that your changes had not effect.
+     That is because you are building the copy of the file in the "fake" symbolic
+     directory.  If you use a Windows toolchain, you should get in the habit of
+     making like this:
+
+       make clean_context; make CROSSDEV=arm-none-eabi-
+
+     An alias in your .bashrc file might make that less painful.
+
+  3. Dependencies are not made when using Windows versions of the GCC.  This is
+     because the dependencies are generated using Windows pathes which do not
+     work with the Cygwin make.
+
+     Support has been added for making dependencies with the CodeSourcery toolchain.
+     That support can be enabled by modifying your Make.defs file as follows:
+
+    -  MKDEP                = $(TOPDIR)/tools/mknulldeps.sh
+    +  MKDEP                = $(TOPDIR)/tools/mkdeps.sh --winpaths "$(TOPDIR)"
+
+     If you have problems with the dependency build (for example, if you are not
+     building on C:), then you may need to modify tools/mkdeps.sh
+
+  NOTE: The CodeSourcery toolchain (2009q1) may not work with default optimization
+  level of -Os (See Make.defs).  It will work with -O0, -O1, or -O2, but not with
+  -Os.
+
+NuttX buildroot Toolchain
+^^^^^^^^^^^^^^^^^^^^^^^^^
 
   A GNU GCC-based toolchain is assumed.  The files */setenv.sh should
-  be modified to point to the correct path to the SH toolchain (if
+  be modified to point to the correct path to the ARM toolchain (if
   different from the default).
 
-  If you have no SH toolchain, one can be downloaded from the NuttX
+  If you have no ARM toolchain, one can be downloaded from the NuttX
   SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573).
 
   1. You must have already configured Nuttx in <some-dir>nuttx.

configs/olimex-strp711/nsh/Make.defs

@@ -1,7 +1,7 @@
 ##############################################################################
 # configs/olimex-strp711/nsh/Make.defs
 #
-#   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,15 @@
 
 include ${TOPDIR}/.config
 
+# The default value for CROSSDEV can be overridden from the make command line:
+#   make                         -- Will build for the NuttX buildroot toolchain
+#   make CROSSDEV=arm-eabi-      -- Will build for the devkitARM toolchain
+#   make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
+#   make CROSSDEV=arm-elf-       -- Will build for the NuttX buildroot toolchain
+
 CROSSDEV		= arm-elf-
 CC			= $(CROSSDEV)gcc
+CXX			= $(CROSSDEV)g++
 CPP			= $(CROSSDEV)gcc -E
 LD			= $(CROSSDEV)ld
 AR			= $(CROSSDEV)ar rcs
@@ -58,23 +65,41 @@ endif
 ifeq ("${CONFIG_DEBUG}","y")
   ARCHOPTIMIZATION	= -g
 else
-  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
-			  -fomit-frame-pointer
 endif
 
 ifeq ($(ARCHCCMAJOR),4)
-  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft -fno-builtin
+  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float
 endif
+
+ifeq ($(CROSSDEV),arm-elf-)
+  MKDEP			= $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES	= -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script
+else
+  WINTOOL		= y
+  DIRLINK		= $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK		= $(TOPDIR)/tools/unlink.sh
+  MKDEP			= $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES		= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES	= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT		= -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script}"
+endif
+
+ARCHCFLAGS		= -fno-builtin
+ARCHCXXFLAGS		= -fno-builtin -fno-exceptions
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX		= -Wall -Wshadow
 ARCHDEFINES		=
-ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
-ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/ld.script
 
-CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+CFLAGS			= $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CXXFLAGS		= $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
 CPPFLAGS		= $(ARCHINCLUDES) $(ARCHDEFINES)
 AFLAGS			= $(CFLAGS) -D__ASSEMBLY__
 
@@ -82,7 +107,10 @@ OBJEXT			= .o
 LIBEXT			= .a
 EXEEXT			=
 
-ifeq ("${CONFIG_DEBUG}","y")
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS		+= -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG),y)
   LDFLAGS		+= -g
 endif
 
@@ -96,6 +124,11 @@ define COMPILE
 	@$(CC) -c $(CFLAGS) $1 -o $2
 endef
 
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
 define ASSEMBLE
 	@echo "AS: $1"
 	@$(CC) -c $(AFLAGS) $1 -o $2
@@ -110,10 +143,8 @@ define CLEAN
 	@rm -f *.o *.a
 endef
 
-MKDEP			= $(TOPDIR)/tools/mkdeps.sh
-
 HOSTCC			= gcc
 HOSTINCLUDES		= -I.
-HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
 HOSTLDFLAGS		=
 

configs/olimex-strp711/nsh/ld.script

@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/olimex-strp711/nsh/ld.script
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -60,14 +60,16 @@ SECTIONS
 	.text : {
 		_stext = ABSOLUTE(.);
 		*(.vectors)
-		*(.text)
+		*(.text .text.*)
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
+		*(.rodata .rodata.*)
-		*(.rodata.str1.*)
+		*(.gnu.linkonce.t.*)
 		*(.glue_7)
 		*(.glue_7t)
-		*(.got)			/* Global offset table		*/
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
 	} > flash
 
@@ -80,18 +82,29 @@ SECTIONS
 	
 	.data : {
 		_sdata = ABSOLUTE(.);
-		*(.data)
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
 		CONSTRUCTORS
 		_edata = ABSOLUTE(.);
 	} > sram AT > flash
 
-	.bss : {			/* BSS				*/
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} >sram
+
+	.bss : {
 		_sbss = ABSOLUTE(.);
-		*(.bss)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
 	} > sram
-					/* Stabs debugging sections.	*/
+
+	/* Stabs debugging sections.	*/
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }

configs/olimex-strp711/ostest/Make.defs

@@ -35,8 +35,15 @@
 
 include ${TOPDIR}/.config
 
+# The default value for CROSSDEV can be overridden from the make command line:
+#   make                         -- Will build for the NuttX buildroot toolchain
+#   make CROSSDEV=arm-eabi-      -- Will build for the devkitARM toolchain
+#   make CROSSDEV=arm-none-eabi- -- Will build for the CodeSourcery toolchain
+#   make CROSSDEV=arm-elf-       -- Will build for the NuttX buildroot toolchain
+
 CROSSDEV		= arm-elf-
 CC			= $(CROSSDEV)gcc
+CXX			= $(CROSSDEV)g++
 CPP			= $(CROSSDEV)gcc -E
 LD			= $(CROSSDEV)ld
 AR			= $(CROSSDEV)ar rcs
@@ -58,23 +65,41 @@ endif
 ifeq ("${CONFIG_DEBUG}","y")
   ARCHOPTIMIZATION	= -g
 else
-  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce \
+  ARCHOPTIMIZATION	= -Os -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
-			  -fomit-frame-pointer
 endif
 
 ifeq ($(ARCHCCMAJOR),4)
-  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft -fno-builtin
+  ARCHCPUFLAGS		= -mcpu=arm7tdmi -mfloat-abi=soft
 else
-  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float -fno-builtin
+  ARCHCPUFLAGS		= -mapcs-32 -mcpu=arm7tdmi -msoft-float
 endif
+
+ifeq ($(CROSSDEV),arm-elf-)
+  MKDEP			= $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES	= -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script
+else
+  WINTOOL		= y
+  DIRLINK		= $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK		= $(TOPDIR)/tools/unlink.sh
+  MKDEP			= $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES		= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES	= -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT		= -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script}"
+endif
+
+ARCHCFLAGS		= -fno-builtin
+ARCHCXXFLAGS		= -fno-builtin -fno-exceptions
 ARCHPICFLAGS		= -fpic
 ARCHWARNINGS		= -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX		= -Wall -Wshadow
 ARCHDEFINES		=
-ARCHINCLUDES		= -I. -isystem $(TOPDIR)/include
-ARCHSCRIPT		= -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/ostest/ld.script
 
-CFLAGS			= $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
+CFLAGS			= $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) \
 			  $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CXXFLAGS		= $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) \
+			  $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
 CPPFLAGS		= $(ARCHINCLUDES) $(ARCHDEFINES)
 AFLAGS			= $(CFLAGS) -D__ASSEMBLY__
 
@@ -82,7 +107,10 @@ OBJEXT			= .o
 LIBEXT			= .a
 EXEEXT			=
 
-ifeq ("${CONFIG_DEBUG}","y")
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS		+= -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG),y)
   LDFLAGS		+= -g
 endif
 
@@ -96,6 +124,11 @@ define COMPILE
 	@$(CC) -c $(CFLAGS) $1 -o $2
 endef
 
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
 define ASSEMBLE
 	@echo "AS: $1"
 	@$(CC) -c $(AFLAGS) $1 -o $2
@@ -110,10 +143,8 @@ define CLEAN
 	@rm -f *.o *.a
 endef
 
-MKDEP			= $(TOPDIR)/tools/mkdeps.sh
-
 HOSTCC			= gcc
 HOSTINCLUDES		= -I.
-HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
 HOSTLDFLAGS		=
 

configs/olimex-strp711/ostest/ld.script

@@ -1,7 +1,7 @@
 /****************************************************************************
  * configs/olimex-strp711/ostest/ld.script
  *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -60,14 +60,16 @@ SECTIONS
 	.text : {
 		_stext = ABSOLUTE(.);
 		*(.vectors)
-		*(.text)
+		*(.text .text.*)
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata)
+		*(.rodata .rodata.*)
-		*(.rodata.str1.*)
+		*(.gnu.linkonce.t.*)
 		*(.glue_7)
 		*(.glue_7t)
-		*(.got)			/* Global offset table		*/
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
 	} > flash
 
@@ -80,18 +82,29 @@ SECTIONS
 	
 	.data : {
 		_sdata = ABSOLUTE(.);
-		*(.data)
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
 		CONSTRUCTORS
 		_edata = ABSOLUTE(.);
 	} > sram AT > flash
 
-	.bss : {			/* BSS				*/
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		*(.ARM.exidx*)
+	} >sram
+
+	.bss : {
 		_sbss = ABSOLUTE(.);
-		*(.bss)
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
 		*(COMMON)
 		_ebss = ABSOLUTE(.);
 	} > sram
-					/* Stabs debugging sections.	*/
+
+	/* Stabs debugging sections.	*/
 	.stab 0 : { *(.stab) }
 	.stabstr 0 : { *(.stabstr) }
 	.stab.excl 0 : { *(.stab.excl) }

configs/olimex-strp711/src/Makefile

@@ -36,7 +36,14 @@
 -include $(TOPDIR)/Make.defs
 
 ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
-CFLAGS		+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/arm -I$(TOPDIR)/sched
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/arm}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/sched}"
+else
+  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/arm -I$(TOPDIR)/sched
+endif
 
 ASRCS		= 
 AOBJS		= $(ASRCS:.S=$(OBJEXT))