First cut at x86 build environment

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3336 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 69 insertions, 52 deletions

diff --git a/nuttx/arch/README.txt b/nuttx/arch/README.txt
index 7ef23b3d3..8bcdda6e6 100644
--- a/nuttx/arch/README.txt
+++ b/nuttx/arch/README.txt
@@ -50,20 +50,20 @@ subdirectory).  Each architecture must provide a subdirectory <arch-name>
 under arch/ with the following characteristics:
 
 
-	<arch-name>/
-	|-- include/
-	|   |--<chip-name>/
-	|   |  `-- (chip-specific header files)
-	|   |--<other-chips>/
-	|   |-- arch.h
-	|   |-- irq.h
-	|   `-- types.h
-	`-- src/
-	    |--<chip-name>/
-	    |  `-- (chip-specific source files)
-	    |--<other-chips>/
-	    |-- Makefile
-	    `-- (architecture-specific source files)
+        <arch-name>/
+        |-- include/
+        |   |--<chip-name>/
+        |   |  `-- (chip-specific header files)
+        |   |--<other-chips>/
+        |   |-- arch.h
+        |   |-- irq.h
+        |   `-- types.h
+        `-- src/
+            |--<chip-name>/
+            |  `-- (chip-specific source files)
+            |--<other-chips>/
+            |-- Makefile
+            `-- (architecture-specific source files)
 
 Summary of Files
 ^^^^^^^^^^^^^^^^
@@ -158,10 +158,10 @@ arch/arm - ARM-based micro-controllers
         complete, verified, and included in the NuttX release 0.2.1.
 
     arch/arm/include/imx and arch/arm/src/imx
-	Freescale MC9328MX1 or i.MX1. This port uses the Freescale MX1ADS
-	development board with a GNU arm-elf toolchain* under either Linux or Cygwin.
-	STATUS: This port has stalled because of development tool issues. Coding
-	is complete on the basic port (timer, serial console, SPI).
+        Freescale MC9328MX1 or i.MX1. This port uses the Freescale MX1ADS
+        development board with a GNU arm-elf toolchain* under either Linux or Cygwin.
+        STATUS: This port has stalled because of development tool issues. Coding
+        is complete on the basic port (timer, serial console, SPI).
 
     arch/arm/include/lm3s and arch/arm/src/lm3s
         These directories contain support for the Luminary LMS family, particularly
@@ -178,43 +178,43 @@ arch/arm - ARM-based micro-controllers
         support.  A verifed NuttShell (NSH) configuration is also available.
 
     arch/arm/include/lpc2378 and arch/arm/src/lpc2378.
-	NXP LPC2378. Support is provided for the NXP LPC2378 MCU. This port was
-	contributed by Rommel Marcelo is was first released in NuttX-5.3.
-	STATUS: This port boots and passes the OS test (examples/ostest) and
-	includes a working implementation of the NuttShell (NSH). The port is
-	complete and verified. As of NuttX 5.3, the port includes only basic
-	timer interrupts and serial console support.
+        NXP LPC2378. Support is provided for the NXP LPC2378 MCU. This port was
+        contributed by Rommel Marcelo is was first released in NuttX-5.3.
+        STATUS: This port boots and passes the OS test (examples/ostest) and
+        includes a working implementation of the NuttShell (NSH). The port is
+        complete and verified. As of NuttX 5.3, the port includes only basic
+        timer interrupts and serial console support.
 
     arch/arm/include/lpc313x and arch/arm/src/lpc313x
         These directories provide support for NXP LPC313x family of
         ARM926EJ-S processors.  The port for the NXP LPC3131 was first
-	released in NuttX-5.1 (but was not functional until NuttX-5.2).
-	STATUS: The basic EA3131 port is complete and verified in NuttX-5.2
-	This basic port includes basic boot-up, serial console, and timer
-	interrupts. This port was extended in NuttX 5.3 with a USB high
-	speed driver contributed by David Hewson. This port has been
-	verified using the NuttX OS test, USB serial and mass storage tests
-	and includes a working implementation of the NuttShell ((NSH)).
+        released in NuttX-5.1 (but was not functional until NuttX-5.2).
+        STATUS: The basic EA3131 port is complete and verified in NuttX-5.2
+        This basic port includes basic boot-up, serial console, and timer
+        interrupts. This port was extended in NuttX 5.3 with a USB high
+        speed driver contributed by David Hewson. This port has been
+        verified using the NuttX OS test, USB serial and mass storage tests
+        and includes a working implementation of the NuttShell ((NSH)).
 
     arch/arm/include/sam3u and arch/arm/src/sam3u
-	Atmel AT91SAM3U. This port is for Atmel AT91SAM3U4E MCU.
-	STATUS: The basic AT91SAM3U port was released in NuttX version 5.1.
-	The basic port includes boot-up logic, interrupt driven serial
-	console, and system timer interrupts. That release passes the
-	NuttX OS test and is proven to have a valid OS implementation. A 
-	onfiguration to support the NuttShell is also included.
+        Atmel AT91SAM3U. This port is for Atmel AT91SAM3U4E MCU.
+        STATUS: The basic AT91SAM3U port was released in NuttX version 5.1.
+        The basic port includes boot-up logic, interrupt driven serial
+        console, and system timer interrupts. That release passes the
+        NuttX OS test and is proven to have a valid OS implementation. A 
+        onfiguration to support the NuttShell is also included.
 
     arch/arm/include/stm32 and arch/arm/src/stm32
-	These directories contain support for the STMicro STM32 family, particularly
-	for the STM32F103ZET6. 
-	STATUS: The basic STM32 port was released in NuttX version 0.4.12.
-	The basic port includes boot-up logic, interrupt driven serial console,
-	and system timer interrupts. The 0.4.13 release added support for SPI,
-	serial FLASH, and USB device.; The 4.14 release added support for
-	buttons and SDIO-based MMC/SD and verifed DMA support. Verified
-	configurations are available for NuttX OS test, the NuttShell (NSH)
-	example, the USB serial device class, and the USB mass storage device 
-	lass example. 
+        These directories contain support for the STMicro STM32 family, particularly
+        for the STM32F103ZET6. 
+        STATUS: The basic STM32 port was released in NuttX version 0.4.12.
+        The basic port includes boot-up logic, interrupt driven serial console,
+        and system timer interrupts. The 0.4.13 release added support for SPI,
+        serial FLASH, and USB device.; The 4.14 release added support for
+        buttons and SDIO-based MMC/SD and verifed DMA support. Verified
+        configurations are available for NuttX OS test, the NuttShell (NSH)
+        example, the USB serial device class, and the USB mass storage device 
+        lass example. 
 
     arch/arm/include/str71x and arch/arm/src/str71x
         These directories provide support for the STMicro STR71x processors.
@@ -236,14 +236,15 @@ arch/avr
 arch/hc
     This directory is dedicated to ports to the Freescale HC family.
 
-    arch/arm/include/hcs12 and arch/arm/src/hcs12
-      These directories provide support for the Freescale m68hcs12 family.
-      STATUS:  Fragments of this port were released in nuttx-5.0, but porting effort
-      has been stalled because of higher priority tasks.
+    arch/arm/include/m9s12 and arch/arm/src/m9s12
+      These directories provide support for the Freescale mc9s12x family.
+      STATUS:  Fragments of this port were first released in nuttx-5.0 and
+      the port was "code-complete" as nuttx-5.18.  However, the final
+      verification effort has been stalled because of higher priority tasks.
 
 arch/m68322
     A work in progress.
-    STATUS:  Stalled for the moment.
+    STATUS:  Stalled for the time being.
 
 arch/sh - SuperH and related Hitachi/Renesas microcontrollers
 
@@ -256,6 +257,22 @@ arch/sh - SuperH and related Hitachi/Renesas microcontrollers
 arch/8051 - 8051/52 microcontrollers
     8051 Microcontroller.  This port is not quite ready for prime time.
 
+arch/x86 - Intel x86 architectures
+    This directory holds related, 32- and 64-bit architectures from Intel.
+    At present, this includes the following subdirectories:
+
+    arch/x86/include and arch/x86/src/common
+        Common x86 logic.
+
+    arch/x86/include/i486 and arch/x86/src/i486
+        These directories hold definitions and logic appropriate for any
+        instantiation of the 32-bit i486 architecture.
+
+    arch/x86/include/qemu and arch/x86/src/qemu
+        This is the implementation of NuttX on the QEMU x86 simulation.
+
+    STATUS:  This is a work in progress and not yet ready for prime time.
+
 arch/z16 - ZiLOG 16-bit processors
     This directory holds related, 16-bit architectures from ZiLOG.  At
     present, this includes the following subdirectories: