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Remove minnsh configurations and support logic: up_getc() and lowinstream.

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This was an interesting exercise to see just how small you could get NuttX, but otherwise it was not useful:  (1) the NSH code violated the OS interface layer by callup up_getc and up_putc directly, and (2) while waiting for character input, NSH would call up_getc() which would hog all of the CPU.  NOt a reasonably solution other than as a proof of concept.
This commit is contained in:
Gregory Nutt
2016-12-13 18:01:23 -06:00
parent 26560cb9e1
commit c83da3c48f
33 changed files with 7 additions and 5283 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/src/kl/Make.defs
+1 -1
View File
@@ -70,7 +70,7 @@ CMN_CSRCS += up_dumpnvic.c
endif
CHIP_ASRCS =
CHIP_CSRCS = kl_clockconfig.c kl_gpio.c kl_idle.c kl_irq.c kl_getc.c
CHIP_CSRCS = kl_clockconfig.c kl_gpio.c kl_idle.c kl_irq.c
CHIP_CSRCS += kl_lowputc.c kl_serial.c kl_start.c kl_cfmconfig.c
ifneq ($(CONFIG_SCHED_TICKLESS),y)
arch/arm/src/kl/kl_getc.c
-96
View File
@@ -1,96 +0,0 @@
/****************************************************************************
* arch/arm/src/kl/kl_getc.c
*
* Copyright (C) 2013, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include "up_arch.h"
#include "kl_config.h"
#include "kl_getc.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Select UART parameters for the selected console */
#if defined(CONFIG_UART0_SERIAL_CONSOLE)
# define CONSOLE_BASE KL_UART0_BASE
#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
# define CONSOLE_BASE KL_UART1_BASE
#elif defined(CONFIG_UART2_SERIAL_CONSOLE)
# define CONSOLE_BASE KL_UART2_BASE
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_getc
*
* Description:
* Input one byte from the serial console
*
* REVIST: If used with the serial driver enabled, then this could
* interfere with the serial driver operations. Serial interrupts should
* be disabled when this function executes in that case.
*
****************************************************************************/
int up_getc(void)
{
uint8_t ch = 0;
#if defined HAVE_UART_DEVICE && defined HAVE_SERIAL_CONSOLE
/* Wait while the receiver data buffer is "empty" (RDRF) to assure that
* we have data in the buffer to read.
*/
while ((getreg8(CONSOLE_BASE + KL_UART_S1_OFFSET) & UART_S1_RDRF) == 0);
/* Then read a character from the UART data register */
ch = getreg8(CONSOLE_BASE + KL_UART_D_OFFSET);
#endif
return (int)ch;
}
arch/arm/src/kl/kl_getc.h
-48
View File
@@ -1,48 +0,0 @@
/************************************************************************************
* arch/arm/src/kl/kl_getc.h
*
* Copyright (C) 2013, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_KL_KINETIS_GETC_H
#define __ARCH_ARM_SRC_KL_KINETIS_GETC_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "kl_config.h"
#include "chip/kl_uart.h"
#endif /* __ARCH_ARM_SRC_KL_KINETIS_GETC_H */
arch/arm/src/lpc11xx/Make.defs
+1 -1
View File
@@ -71,7 +71,7 @@ endif
CHIP_ASRCS =
CHIP_CSRCS = lpc11_clockconfig.c lpc11_gpio.c lpc11_i2c.c lpc11_idle.c
CHIP_CSRCS += lpc11_irq.c lpc11_lowputc.c lpc11_getc.c lpc11_serial.c
CHIP_CSRCS += lpc11_irq.c lpc11_lowputc.c lpc11_serial.c
CHIP_CSRCS += lpc11_spi.c lpc11_ssp.c lpc11_start.c
# Configuration-dependent LPC11xx files
arch/arm/src/lpc11xx/lpc11_getc.c
-95
View File
@@ -1,95 +0,0 @@
/****************************************************************************
* arch/arm/src/lpc11/lpc11_getc.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include "up_arch.h"
#include "lpc11_getc.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Select UART parameters for the selected console */
#if defined(CONFIG_UART0_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC11_UART0_BASE
#elif defined(CONFIG_UART1_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC11_UART1_BASE
#elif defined(CONFIG_UART2_SERIAL_CONSOLE)
# define CONSOLE_BASE LPC11_UART2_BASE
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_getc
*
* Description:
* Input one byte from the serial console.
*
* REVIST: If used with the serial driver enabled, then this could
* interfere with the serial driver operations. Serial interrupts should
* be disabled when this function executes in that case.
*
****************************************************************************/
int up_getc(void)
{
uint8_t ch = 0;
#if defined HAVE_UART && defined HAVE_SERIAL_CONSOLE
/* Wait while the Receiver Data Ready (RDR) is indicating a "empty" FIFO to
* assure that we have data in the buffer to read.
*/
while ((getreg32(CONSOLE_BASE+LPC11_UART_LSR_OFFSET) & UART_LSR_RDR) == 0);
/* Then read a character from the UART data register */
ch = getreg8(CONSOLE_BASE+LPC11_UART_RBR_OFFSET);
#endif
return (int)ch;
}
arch/arm/src/lpc11xx/lpc11_getc.h
-47
View File
@@ -1,47 +0,0 @@
/************************************************************************************
* arch/arm/src/lpc11/lpc11_getc.h
*
* Copyright (C) 2015, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_LPC11XX_LPC11_GETC_H
#define __ARCH_ARM_SRC_LPC11XX_LPC11_GETC_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "lpc11_serial.h"
#include "chip/lpc11_uart.h"
#endif /* __ARCH_ARM_SRC_LPC11XX_LPC11_GETC_H */
arch/arm/src/stm32/Make.defs
+1 -1
View File
@@ -110,7 +110,7 @@ CHIP_ASRCS =
CHIP_CSRCS = stm32_allocateheap.c stm32_start.c stm32_rcc.c stm32_lse.c
CHIP_CSRCS += stm32_lsi.c stm32_gpio.c stm32_exti_gpio.c stm32_flash.c
CHIP_CSRCS += stm32_irq.c stm32_dma.c stm32_lowputc.c stm32_getc.c
CHIP_CSRCS += stm32_irq.c stm32_dma.c stm32_lowputc.c
CHIP_CSRCS += stm32_serial.c stm32_spi.c stm32_sdio.c stm32_tim.c
CHIP_CSRCS += stm32_waste.c stm32_ccm.c stm32_uid.c stm32_capture.c
arch/arm/src/stm32/stm32.h
-1
View File
@@ -78,7 +78,6 @@
#include "stm32_usbdev.h"
#include "stm32_wdg.h"
#include "stm32_lowputc.h"
#include "stm32_getc.h"
#include "stm32_eth.h"
#endif /* __ARCH_ARM_SRC_STM32_STM32_H */
arch/arm/src/stm32/stm32_getc.c
-121
View File
@@ -1,121 +0,0 @@
/****************************************************************************
* arch/arm/src/stm32/stm32_getc.c
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <arch/board/board.h>
#include "up_internal.h"
#include "up_arch.h"
#include "chip.h"
#include "stm32.h"
#include "stm32_rcc.h"
#include "stm32_gpio.h"
#include "stm32_uart.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Select U[S]ART console base address */
#ifdef HAVE_CONSOLE
# if defined(CONFIG_USART1_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_USART1_BASE
# elif defined(CONFIG_USART2_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_USART2_BASE
# elif defined(CONFIG_USART3_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_USART3_BASE
# elif defined(CONFIG_UART4_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_UART4_BASE
# elif defined(CONFIG_UART5_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_UART5_BASE
# elif defined(CONFIG_USART6_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_USART6_BASE
# elif defined(CONFIG_UART7_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_UART7_BASE
# elif defined(CONFIG_UART8_SERIAL_CONSOLE)
# define STM32_CONSOLE_BASE STM32_UART8_BASE
# endif
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_getc
*
* Description:
* Read one byte from the serial console
*
* REVIST: If used with the serial driver enabled, then this could
* interfere with the serial driver operations. Serial interrupts should
* be disabled when this function executes in that case.
*
****************************************************************************/
int up_getc(void)
{
uint32_t ch = 0;
#ifdef HAVE_CONSOLE
/* While there is any error, read and discard bytes to clear the errors */
while ((getreg32(STM32_CONSOLE_BASE + STM32_USART_SR_OFFSET) &
(USART_SR_ORE | USART_SR_NE | USART_SR_FE | USART_SR_PE)) != 0)
{
(void)getreg32(STM32_CONSOLE_BASE + STM32_USART_RDR_OFFSET);
}
/* Wait until the RX data register has a character to be read */
while ((getreg32(STM32_CONSOLE_BASE + STM32_USART_SR_OFFSET) & USART_SR_RXNE) == 0);
/* Then read the character */
ch = getreg32(STM32_CONSOLE_BASE + STM32_USART_RDR_OFFSET);
#endif /* HAVE_CONSOLE */
return (int)ch;
}
arch/arm/src/stm32/stm32_getc.h
-47
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@@ -1,47 +0,0 @@
/************************************************************************************
* arch/arm/src/stm32/stm32_getc.h
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_STM32_STM32_GETC_H
#define __ARCH_ARM_SRC_STM32_STM32_GETC_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#endif /* __ARCH_ARM_SRC_STM32_STM32_GETC_H */
configs/freedom-kl25z/README.txt
-92
View File
@@ -294,98 +294,6 @@ instead of configure.sh:
Where <subdir> is one of the following:
minnsh:
------
This is a experiment to see just how small we can get a usable NSH
configuration. This configuration has far fewer features than the nsh
configuration but is also a fraction of the size.
2016-06-21:
$ arm-none-eabi-size nuttx
text data bss dec hex filename
12282 196 736 13214 339e nuttx
This minnsh configuration is a "proof-of-concept" and not very usable in
its current state. This configuration was created by disabling
everything possible INCLUDING file system support. Without file system
support, NuttX is pretty much crippled. Here are some of the
consequences of disabling the file system:
- All features that depend on the file system are lost: device drivers,
mountpoints, message queues, named semaphores.
- Without device drivers, you cannot interact with the RTOS using POSIX
interfaces. You would have to work with NuttX as with those other
tiny RTOSs: As a scheduler and a callable hardare abstraction layer
(HAL).
- You cannot use any of the NuttX upper half device drivers since they
depend on the pseudo-file system and device nodes. You can, of
course, continue to use the lower half drivers either directly. Or,
perhaps, you could write some custom minnsh upper half drivers that
do not depend on a file system and expose a HAL interface.
There is a special version of readline() the NSH uses when there is no
file system. It uses a special up_putc() to write data to the console
and a special function up_getc() to read data from the console.
- The current up_getc() implementationsa are a kludge. They are
analogous to the up_putc() implementations: They directly poll the
hardware for serial availability, locking up all lower priority tasks
in the entire system while they poll. So a version of NSH that uses
up_getc() essentially blocks the system until a character is received.
This, of course, could be fixed by creating a special, upper half
implementation of the interrupt-driven serial lower half (like
stm32_serial) that just supports single character console I/O
(perhaps called up_putc and up_getc?). The NSH could wait for serial
input without blocking the system. But then that would increase the
footprint too.
So although the minnsh configurations are a good starting point for
making things small, they not are really very practical. Why might
you want a NuttX minnsh solution? Perhaps you have software that runs
on a family of chips including some very tiny MCUs. Then perhaps having
the RTOS compatibility would justify the loss of functionality?
You can re-enable the file system and (true) serial console with
these settings:
Enable the file system:
CONFIG_NFILE_DESCRIPTORS=5
CONFIG_NFILE_STREAMS=5
Enable the console device:
CONFIG_DEV_CONSOLE=y
Disable most new NSH commands. Some like 'ls' are really mandatory
with a file system:
CONFIG_NSH_DISABLE_xxx=y
Enable the upper half serial driver:
CONFIG_SERIAL=y
CONFIG_STANDARD_SERIAL=y
Enable the USART1 serial driver:
CONFIG_STM32_USART1=y
CONFIG_STM32_USART1_SERIALDRIVER=y
CONFIG_USART1_SERIAL_CONSOLE=y
CONFIG_USART1_2STOP=0
CONFIG_USART1_BAUD=115200
CONFIG_USART1_BITS=8
CONFIG_USART1_PARITY=0
CONFIG_USART1_RXBUFSIZE=16
CONFIG_USART1_TXBUFSIZE=16
With these changes, NSH should behave better and we preserve the device
driver interface. But this result in a total size increase of about
7KB: That is about 5KB of additional OS support for the file system and
serial console PLUS about 2KB for the 'ls' command logic (including OS
support for opendir(), readdir(), closedir(), stat(), and probably other
things).
nsh:
---
Configures the NuttShell (nsh) located at apps/examples/nsh. The
configs/freedom-kl25z/minnsh/Make.defs
-124
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@@ -1,124 +0,0 @@
############################################################################
# configs/freedom-kl25z/minnsh/Make.defs
#
# Copyright (C) 2013 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/arm/src/armv6-m/Toolchain.defs
LDSCRIPT = ld.script
ifeq ($(WINTOOL),y)
# Windows-native toolchains
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)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS = $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =
ifeq ($(CONFIG_HOST_WINDOWS),y)
HOSTEXEEXT = .exe
else
HOSTEXEEXT =
endif
ifeq ($(WINTOOL),y)
# Windows-native host tools
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mkwindeps.sh
else
# Linux/Cygwin-native host tools
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
endif
configs/freedom-kl25z/minnsh/defconfig
-799
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File diff suppressed because it is too large Load Diff
configs/freedom-kl25z/minnsh/setenv.sh
-75
View File
@@ -1,75 +0,0 @@
#!/bin/bash
# configs/freedom-kl25z/minnsh/setenv.sh
#
# Copyright (C) 2013 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
if [ "$_" = "$0" ] ; then
echo "You must source this script, not run it!" 1>&2
exit 1
fi
WD=`pwd`
if [ ! -x "setenv.sh" ]; then
echo "This script must be executed from the top-level NuttX build directory"
exit 1
fi
if [ -z "${PATH_ORIG}" ]; then
export PATH_ORIG="${PATH}"
fi
# This is the Cygwin path to the location where I installed the RIDE
# toolchain under windows. You will also have to edit this if you install
# the RIDE toolchain in any other location
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Raisonance/Ride/arm-gcc/bin"
# This is the Cygwin path to the location where I installed the CodeSourcery
# toolchain under windows. You will also have to edit this if you install
# the CodeSourcery toolchain in any other location
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
# These are the Cygwin paths to the locations where I installed the Atollic
# toolchain under windows. You will also have to edit this if you install
# the Atollic toolchain in any other location. /usr/bin is added before
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
# at those locations as well.
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
# This is the Cygwin path to the location where I build the buildroot
# toolchain.
export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
# Add the path to the toolchain to the PATH varialble
export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
echo "PATH : ${PATH}"
configs/freedom-kl26z/README.txt
-87
View File
@@ -272,93 +272,6 @@ instead of configure.sh:
Where <subdir> is one of the following:
minnsh:
------
This is a experiment to see just how small we can get a usable NSH
configuration. This configuration has far fewer features than the nsh
configuration but is also a fraction of the size.
This minnsh configuration is a "proof-of-concept" and not very usable in
its current state. This configuration was created by disabling
everything possible INCLUDING file system support. Without file system
support, NuttX is pretty much crippled. Here are some of the
consequences of disabling the file system:
- All features that depend on the file system are lost: device drivers,
mountpoints, message queues, named semaphores.
- Without device drivers, you cannot interact with the RTOS using POSIX
interfaces. You would have to work with NuttX as with those other
tiny RTOSs: As a scheduler and a callable hardare abstraction layer
(HAL).
- You cannot use any of the NuttX upper half device drivers since they
depend on the pseudo-file system and device nodes. You can, of
course, continue to use the lower half drivers either directly. Or,
perhaps, you could write some custom minnsh upper half drivers that
do not depend on a file system and expose a HAL interface.
There is a special version of readline() the NSH uses when there is no
file system. It uses a special up_putc() to write data to the console
and a special function up_getc() to read data from the console.
- The current up_getc() implementationsa are a kludge. They are
analogous to the up_putc() implementations: They directly poll the
hardware for serial availability, locking up all lower priority tasks
in the entire system while they poll. So a version of NSH that uses
up_getc() essentially blocks the system until a character is received.
This, of course, could be fixed by creating a special, upper half
implementation of the interrupt-driven serial lower half (like
stm32_serial) that just supports single character console I/O
(perhaps called up_putc and up_getc?). The NSH could wait for serial
input without blocking the system. But then that would increase the
footprint too.
So although the minnsh configurations are a good starting point for
making things small, they not are really very practical. Why might
you want a NuttX minnsh solution? Perhaps you have software that runs
on a family of chips including some very tiny MCUs. Then perhaps having
the RTOS compatibility would justify the loss of functionality?
You can re-enable the file system and (true) serial console with
these settings:
Enable the file system:
CONFIG_NFILE_DESCRIPTORS=5
CONFIG_NFILE_STREAMS=5
Enable the console device:
CONFIG_DEV_CONSOLE=y
Disable most new NSH commands. Some like 'ls' are really mandatory
with a file system:
CONFIG_NSH_DISABLE_xxx=y
Enable the upper half serial driver:
CONFIG_SERIAL=y
CONFIG_STANDARD_SERIAL=y
Enable the USART1 serial driver:
CONFIG_STM32_USART1=y
CONFIG_STM32_USART1_SERIALDRIVER=y
CONFIG_USART1_SERIAL_CONSOLE=y
CONFIG_USART1_2STOP=0
CONFIG_USART1_BAUD=115200
CONFIG_USART1_BITS=8
CONFIG_USART1_PARITY=0
CONFIG_USART1_RXBUFSIZE=16
CONFIG_USART1_TXBUFSIZE=16
With these changes, NSH should behave better and we preserve the device
driver interface. But this result in a total size increase of about
7KB: That is about 5KB of additional OS support for the file system and
serial console PLUS about 2KB for the 'ls' command logic (including OS
support for opendir(), readdir(), closedir(), stat(), and probably other
things).
nsh:
---
Configures the NuttShell (nsh) located at apps/examples/nsh. The
configs/freedom-kl26z/minnsh/Make.defs
-124
View File
@@ -1,124 +0,0 @@
############################################################################
# configs/freedom-kl26z/minnsh/Make.defs
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/arm/src/armv6-m/Toolchain.defs
LDSCRIPT = ld.script
ifeq ($(WINTOOL),y)
# Windows-native toolchains
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)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS = $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =
ifeq ($(CONFIG_HOST_WINDOWS),y)
HOSTEXEEXT = .exe
else
HOSTEXEEXT =
endif
ifeq ($(WINTOOL),y)
# Windows-native host tools
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mkwindeps.sh
else
# Linux/Cygwin-native host tools
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
endif
configs/freedom-kl26z/minnsh/defconfig
-799
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configs/freedom-kl26z/minnsh/setenv.sh
-71
View File
@@ -1,71 +0,0 @@
#!/bin/bash
# configs/freedom-kl26z/minnsh/setenv.sh
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
if [ "$_" = "$0" ] ; then
echo "You must source this script, not run it!" 1>&2
exit 1
fi
WD=`pwd`
if [ ! -x "setenv.sh" ]; then
echo "This script must be executed from the top-level NuttX build directory"
exit 1
fi
if [ -z "${PATH_ORIG}" ]; then
export PATH_ORIG="${PATH}"
fi
# This is the Cygwin path to the location where I installed the CodeSourcery
# toolchain under windows. You will also have to edit this if you install
# the CodeSourcery toolchain in any other location
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
#export TOOLCHAIN_BIN="/cygdrive/c/Users/MyName/MentorGraphics/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
# These are the Cygwin paths to the locations where I installed the Atollic
# toolchain under windows. You will also have to edit this if you install
# the Atollic toolchain in any other location. /usr/bin is added before
# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
# at those locations as well.
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
# This is the Cygwin path to the location where I build the buildroot
# toolchain.
export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
# Add the path to the toolchain to the PATH varialble
export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
echo "PATH : ${PATH}"
configs/lpcxpresso-lpc1115/README.txt
-138
View File
@@ -680,144 +680,6 @@ selected as follow:
Where <subdir> is one of the following:
minnsh:
------
This is a experiment to see just how small we can get a usable NSH
configuration. This configuration has far fewer features than the nsh
configuration but is also a fraction of the size.
This minnsh configuration is a "proof-of-concept" and not very usable in
its current state. This configuration was created by disabling
everything possible INCLUDING file system support. Without file system
support, NuttX is pretty much crippled. Here are some of the
consequences of disabling the file system:
- All features that depend on the file system are lost: device drivers,
mountpoints, message queues, named semaphores.
- Without device drivers, you cannot interact with the RTOS using POSIX
interfaces. You would have to work with NuttX as with those other
tiny RTOSs: As a scheduler and a callable hardare abstraction layer
(HAL).
- You cannot use any of the NuttX upper half device drivers since they
depend on the pseudo-file system and device nodes. You can, of
course, continue to use the lower half drivers either directly. Or,
perhaps, you could write some custom minnsh upper half drivers that
do not depend on a file system and expose a HAL interface.
There is a special version of readline() the NSH uses when there is no
file system. It uses a special up_putc() to write data to the console
and a special function up_getc() to read data from the console.
- The current up_getc() implementationsa are a kludge. They are
analogous to the up_putc() implementations: They directly poll the
hardware for serial availability, locking up all lower priority tasks
in the entire system while they poll. So a version of NSH that uses
up_getc() essentially blocks the system until a character is received.
This, of course, could be fixed by creating a special, upper half
implementation of the interrupt-driven serial lower half (like
stm32_serial) that just supports single character console I/O
(perhaps called up_putc and up_getc?). The NSH could wait for serial
input without blocking the system. But then that would increase the
footprint too.
So although the minnsh configurations are a good starting point for
making things small, they not are really very practical. Why might
you want a NuttX minnsh solution? Perhaps you have software that runs
on a family of chips including some very tiny MCUs. Then perhaps having
the RTOS compatibility would justify the loss of functionality?
You can re-enable the file system and (true) serial console with
these settings:
Enable the file system:
CONFIG_NFILE_DESCRIPTORS=5
CONFIG_NFILE_STREAMS=5
Enable the console device:
CONFIG_DEV_CONSOLE=y
Disable most new NSH commands. Some like 'ls' are really mandatory
with a file system:
CONFIG_NSH_DISABLE_xxx=y
Enable the upper half serial driver:
CONFIG_SERIAL=y
CONFIG_STANDARD_SERIAL=y
Enable the USART1 serial driver:
CONFIG_STM32_USART1=y
CONFIG_STM32_USART1_SERIALDRIVER=y
CONFIG_USART1_SERIAL_CONSOLE=y
CONFIG_USART1_2STOP=0
CONFIG_USART1_BAUD=115200
CONFIG_USART1_BITS=8
CONFIG_USART1_PARITY=0
CONFIG_USART1_RXBUFSIZE=16
CONFIG_USART1_TXBUFSIZE=16
With these changes, NSH should behave better and we preserve the device
driver interface. But this result in a total size increase of about
7KB: That is about 5KB of additional OS support for the file system and
serial console PLUS about 2KB for the 'ls' command logic (including OS
support for opendir(), readdir(), closedir(), stat(), and probably other
things).
STATUS:
2015-6-10
The nuttx.bin minnsh firmware file size:
$ ls -l nuttx.bin
-rwxr-xr-x 1 alan alan 13859 Jun 10 08:54 nuttx.bin
$ arm-none-eabi-size nuttx
text data bss dec hex filename
12818 193 704 13715 3593 nuttx
This is serial console output (and input) :
NuttShell (NSH)
nsh> ls /dev
nsh: ls: command not found
No filesystem, no "ls" command :-)
nsh> ?
help usage: help [-v] [<cmd>]
? exec free mb mw xd
echo exit help mh ps
nsh> free
total used free largest
Mem: 6464 1816 4648 4648
nsh> echo "NuttX is magic!"
NuttX is magic!
nsh>
Replace NSH with apps/examples/hello:
$ ls -l nuttx.bin
-rwxr-xr-x 1 alan alan 9318 Jun 10 09:02 nuttx.bin
$ arm-none-eabi-size nuttx
text data bss dec hex filename
8277 193 704 9174 23d6 nuttx
Some additional commits from Alan reduce this FLASH size by
about another kilobyte. That changes: (1) disable stack
dumping on assertions,and (2) make some FLASH data structures
smaller.
Almost 2Kb of the remaining size was due to some arithmetic
"long long" (64 bits) operations drawn from libgcc.a.
Alan changed vsprintf to make "long long" support optional.
This change reduced the NuttX kernel to less than 8KiB!
nsh:
---
configs/lpcxpresso-lpc1115/minnsh/Make.defs
-123
View File
@@ -1,123 +0,0 @@
############################################################################
# configs/lpcxpresso-lpc1115/minnsh/Make.defs
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/arm/src/armv6-m/Toolchain.defs
LDSCRIPT = ld.script
ifeq ($(WINTOOL),y)
# Windows-native toolchains
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)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
AR = $(ARCROSSDEV)ar rcs
NM = $(ARCROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS = $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =
ifeq ($(CONFIG_HOST_WINDOWS),y)
HOSTEXEEXT = .exe
else
HOSTEXEEXT =
endif
ifeq ($(WINTOOL),y)
# Windows-native host tools
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mkwindeps.sh
else
# Linux/Cygwin-native host tools
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
endif
configs/lpcxpresso-lpc1115/minnsh/defconfig
-767
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configs/lpcxpresso-lpc1115/minnsh/setenv.sh
-72
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@@ -1,72 +0,0 @@
#!/bin/bash
# configs/lpcxpresso-lpc1115/minnsh/setenv.sh
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
if [ "$(basename $0)" = "setenv.sh" ] ; then
echo "You must source this script, not run it!" 1>&2
exit 1
fi
if [ -z "${PATH_ORIG}" ]; then export PATH_ORIG="${PATH}"; fi
WD=`pwd`
# This is the Cygwin path to the location where I installed the CodeSourcery
# toolchain under windows. You will also have to edit this if you install
# the CodeSourcery toolchain in any other location
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
# export TOOLCHAIN_BIN="/cygdrive/c/Users/MyName/MentorGraphics/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
# This is the location where I installed the ARM "GNU Tools for ARM Embedded Processors"
# You can this free toolchain here https://launchpad.net/gcc-arm-embedded
export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/GNU Tools ARM Embedded/4.9 2015q2/bin"
# This is the path to the location where I installed the devkitARM toolchain
# You can get this free toolchain from http://devkitpro.org/ or http://sourceforge.net/projects/devkitpro/
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/devkitARM/bin"
# This is the default install location for Code Red on Linux
# export TOOLCHAIN_BIN="/usr/local/LPCXpresso/tools/bin"
# This is the Cygwin path to the LPCXpresso 3.6 install location under Windows
#export TOOLCHAIN_BIN="/cygdrive/c/nxp/lpcxpresso_3.6/Tools/bin"
# This is the Cygwin path to the location where I build the buildroot
# toolchain.
# export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
# Add the path to the toolchain to the PATH varialble
export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
echo "PATH : ${PATH}"
configs/stm3220g-eval/ide/nsh/iar/libc.ewp
-3
View File
@@ -2313,9 +2313,6 @@
<file>
<name>$PROJ_DIR$/../../../../../libc/stdio/lib_memsostream.c</name>
</file>
<file>
<name>$PROJ_DIR$/../../../../../libc/stdio/lib_lowinstream.c</name>
</file>
<file>
<name>$PROJ_DIR$/../../../../../libc/stdio/lib_lowoutstream.c</name>
</file>
configs/stm3220g-eval/ide/nsh/uvision/libc.uvproj
-5
View File
@@ -953,11 +953,6 @@
<FileType>1</FileType>
<FilePath>../../../../../libc/stdio/lib_memsostream.c</FilePath>
</File>
<File>
<FileName>lib_lowinstream.c</FileName>
<FileType>1</FileType>
<FilePath>../../../../../libc/stdio/lib_lowinstream.c</FilePath>
</File>
<File>
<FileName>lib_lowoutstream.c</FileName>
<FileType>1</FileType>
configs/stm32f103-minimum/README.txt
-134
View File
@@ -421,140 +421,6 @@ instead of configure.sh:
Where <subdir> is one of the following:
minnsh:
------
This is a experiment to see just how small we can get a usable NSH
configuration. This configuration has far fewer features than the nsh
configuration but is also a fraction of the size.
This minnsh configuration is a "proof-of-concept" and not very usable in
its current state. This configuration was created by disabling
everything possible INCLUDING file system support. Without file system
support, NuttX is pretty much crippled. Here are some of the
consequences of disabling the file system:
- All features that depend on the file system are lost: device drivers,
mountpoints, message queues, named semaphores.
- Without device drivers, you cannot interact with the RTOS using POSIX
interfaces. You would have to work with NuttX as with those other
tiny RTOSs: As a scheduler and a callable hardare abstraction layer
(HAL).
- You cannot use any of the NuttX upper half device drivers since they
depend on the pseudo-file system and device nodes. You can, of
course, continue to use the lower half drivers either directly. Or,
perhaps, you could write some custom minnsh upper half drivers that
do not depend on a file system and expose a HAL interface.
There is a special version of readline() the NSH uses when there is no
file system. It uses a special up_putc() to write data to the console
and a special function up_getc() to read data from the console.
- The current up_getc() implementationsa are a kludge. They are
analogous to the up_putc() implementations: They directly poll the
hardware for serial availability, locking up all lower priority tasks
in the entire system while they poll. So a version of NSH that uses
up_getc() essentially blocks the system until a character is received.
This, of course, could be fixed by creating a special, upper half
implementation of the interrupt-driven serial lower half (like
stm32_serial) that just supports single character console I/O
(perhaps called up_putc and up_getc?). The NSH could wait for serial
input without blocking the system. But then that would increase the
footprint too.
So although the minnsh configurations are a good starting point for
making things small, they not are really very practical. Why might
you want a NuttX minnsh solution? Perhaps you have software that runs
on a family of chips including some very tiny MCUs. Then perhaps having
the RTOS compatibility would justify the loss of functionality?
STATUS:
2016-06-03: Using that config I got this:
$ ls -l nuttx.bin
-rwxr-xr-x 1 alan alan 12543 Jun 3 17:58 nuttx.bin
$ arm-none-eabi-size nuttx
text data bss dec hex filename
12542 1 816 13359 342f nuttx
And this is free command from NuttX shell:
NuttShell (NSH)
nsh> free
total used free largest
Mem: 18624 2328 16296 16296
nsh>
2016-06-07: As another experiment, I tried enabling just (1) the file
system, (2) the console device, and (3) the upper half serial driver in
the minnsh configuration. With these changes, NSH should behave better
and we preserve the device driver interface. I made the following
configuration changes:
Enable the file system:
CONFIG_NFILE_DESCRIPTORS=5
CONFIG_NFILE_STREAMS=5
Enable the console device:
CONFIG_DEV_CONSOLE=y
Disable most new NSH commands. Some like 'ls' are really mandatory
with a file system:
CONFIG_NSH_DISABLE_xxx=y
Enable the upper half serial driver:
CONFIG_SERIAL=y
CONFIG_STANDARD_SERIAL=y
Enable the USART1 serial driver:
CONFIG_STM32_USART1=y
CONFIG_STM32_USART1_SERIALDRIVER=y
CONFIG_USART1_SERIAL_CONSOLE=y
CONFIG_USART1_2STOP=0
CONFIG_USART1_BAUD=115200
CONFIG_USART1_BITS=8
CONFIG_USART1_PARITY=0
CONFIG_USART1_RXBUFSIZE=16
CONFIG_USART1_TXBUFSIZE=16
The resulting code was bigger as expected:
$ arm-none-eabi-size nuttx
text data bss dec hex filename
19853 88 876 20817 5151 nuttx
I am sure that other things that could be disabled were also drawn into
the build, so perhaps this could be reduced. This amounts to a size
increase of around 7KB.
One major part of this size increase is due to the addition of the NSH
'ls' command. Now, if I disable the 'ls' command, I get:
$ arm-none-eabi-size nuttx
text data bss dec hex filename
17804 80 864 18748 493c nuttx
Or an increase of only 5.1 KB. This, of course, not only excludes the
'ls' command logic, but also the things that were drawn into the link
when 'ls' was enabled: opendir(), readdir(), closedir(), stat(), and
probably other things.
So I think we can say that the cost of the file system and true serial
console device was about 5 KB (primarily OS support) and the cost of
the NSH 'ls' command (including OS support) is about 2KB.
2016-06-21: Just checking the size after some big system changes: The
size of the base configuration has actually dropped by a few bytes:
$ arm-none-eabi-size nuttx
text data bss dec hex filename
12526 4 816 13346 3422 nuttx
nsh:
---
Configures the NuttShell (nsh) located at apps/examples/nsh. This
configs/stm32f103-minimum/minnsh/Make.defs
-113
View File
@@ -1,113 +0,0 @@
############################################################################
# configs/stm32f103-minimum/nsh/Make.defs
#
# Copyright (C) 2016 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
include ${TOPDIR}/.config
include ${TOPDIR}/tools/Config.mk
include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs
LDSCRIPT = ld.script
ifeq ($(WINTOOL),y)
# Windows-native toolchains
DIRLINK = $(TOPDIR)/tools/copydir.sh
DIRUNLINK = $(TOPDIR)/tools/unlink.sh
MKDEP = $(TOPDIR)/tools/mkwindeps.sh
ARCHINCLUDES = -I. -isystem "${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)/scripts/$(LDSCRIPT)}"
else
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
endif
CC = $(CROSSDEV)gcc
CXX = $(CROSSDEV)g++
CPP = $(CROSSDEV)gcc -E
LD = $(CROSSDEV)ld
AR = $(CROSSDEV)ar rcs
NM = $(CROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
ARCHOPTIMIZATION = -g
endif
ifneq ($(CONFIG_DEBUG_NOOPT),y)
ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
endif
ARCHCFLAGS = -fno-builtin
ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new
ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
ARCHWARNINGSXX = -Wall -Wshadow -Wundef
ARCHDEFINES =
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
AFLAGS = $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
ASMEXT = .S
OBJEXT = .o
LIBEXT = .a
EXEEXT =
ifneq ($(CROSSDEV),arm-nuttx-elf-)
LDFLAGS += -nostartfiles -nodefaultlibs
endif
ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
LDFLAGS += -g
endif
HOSTCC = gcc
HOSTINCLUDES = -I.
HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
HOSTLDFLAGS =
configs/stm32f103-minimum/minnsh/defconfig
-1073
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configs/stm32f103-minimum/minnsh/setenv.sh
-100
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@@ -1,100 +0,0 @@
#!/bin/bash
# configs//stm32f103-minimum/nsh/setenv.sh
#
# Copyright (C) 2016 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
if [ "$_" = "$0" ] ; then
echo "You must source this script, not run it!" 1>&2
exit 1
fi
WD=`pwd`
if [ ! -x "setenv.sh" ]; then
echo "This script must be executed from the top-level NuttX build directory"
exit 1
fi
if [ -z "${PATH_ORIG}" ]; then
export PATH_ORIG="${PATH}"
fi
# This is the Cygwin path to the location where I installed the CodeSourcery
# toolchain under windows. You will also have to edit this if you install
# the CodeSourcery toolchain in any other location
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
# export TOOLCHAIN_BIN="/cygdrive/c/Users/MyName/MentorGraphics/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
# This is the location where I installed the ARM "GNU Tools for ARM Embedded Processors"
# You can this free toolchain here https://launchpad.net/gcc-arm-embedded
export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/GNU Tools ARM Embedded/4.9 2015q2/bin"
# This is the path to the location where I installed the devkitARM toolchain
# You can get this free toolchain from http://devkitpro.org/ or http://sourceforge.net/projects/devkitpro/
#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/devkitARM/bin"
# This is the Cygwin path to the location where I build the buildroot
# toolchain.
# export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
# Add the path to the toolchain to the PATH varialble
export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
echo "PATH : ${PATH}"
configs/stm32f429i-disco/ide/ltcd/uvision/libc.uvproj
-5
View File
@@ -915,11 +915,6 @@
<FileType>1</FileType>
<FilePath>../../../../../libc/stdio/lib_memsostream.c</FilePath>
</File>
<File>
<FileName>lib_lowinstream.c</FileName>
<FileType>1</FileType>
<FilePath>../../../../../libc/stdio/lib_lowinstream.c</FilePath>
</File>
<File>
<FileName>lib_lowoutstream.c</FileName>
<FileType>1</FileType>
include/nuttx/arch.h
-10
View File
@@ -2300,16 +2300,6 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable);
int up_putc(int ch);
/****************************************************************************
* Name: up_getc
*
* Description:
* Get one character on the console
*
****************************************************************************/
int up_getc(void);
/****************************************************************************
* Name: up_puts
*
include/nuttx/streams.h
+3 -8
View File
@@ -299,15 +299,13 @@ void lib_rawsistream(FAR struct lib_rawsistream_s *instream, int fd);
void lib_rawsostream(FAR struct lib_rawsostream_s *outstream, int fd);
/****************************************************************************
* Name: lib_lowinstream, lib_lowoutstream
* Name: lib_lowoutstream
*
* Description:
* Initializes a stream for use with low-level, architecture-specific I/O.
* Defined in lib/stdio/lib_lowinstream.c and lib/stdio/lib_lowoutstream.c
* Initializes a stream for use with low-level, architecture-specific output.
* Defined in ib/stdio/lib_lowoutstream.c
*
* Input parameters:
* lowinstream - User allocated, uninitialized instance of struct
* lib_lowinstream_s to be initialized.
* lowoutstream - User allocated, uninitialized instance of struct
* lib_lowoutstream_s to be initialized.
*
@@ -316,9 +314,6 @@ void lib_rawsostream(FAR struct lib_rawsostream_s *outstream, int fd);
*
****************************************************************************/
#ifdef CONFIG_ARCH_LOWGETC
void lib_lowinstream(FAR struct lib_instream_s *lowinstream);
#endif
#ifdef CONFIG_ARCH_LOWPUTC
void lib_lowoutstream(FAR struct lib_outstream_s *lowoutstream);
#endif
libc/stdio/Make.defs
+1 -1
View File
@@ -41,7 +41,7 @@ CSRCS += lib_fileno.c lib_printf.c lib_sprintf.c lib_asprintf.c
CSRCS += lib_snprintf.c lib_libsprintf.c lib_vsprintf.c lib_vasprintf.c
CSRCS += lib_vsnprintf.c lib_libvsprintf.c lib_dprintf.c lib_vdprintf.c
CSRCS += lib_meminstream.c lib_memoutstream.c lib_memsistream.c
CSRCS += lib_memsostream.c lib_lowinstream.c lib_lowoutstream.c
CSRCS += lib_memsostream.c lib_lowoutstream.c
CSRCS += lib_zeroinstream.c lib_nullinstream.c lib_nulloutstream.c
CSRCS += lib_sscanf.c
libc/stdio/lib_lowinstream.c
-102
View File
@@ -1,102 +0,0 @@
/****************************************************************************
* libc/stdio/lib_lowinstream.c
*
* Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <nuttx/arch.h>
#include "libc.h"
#ifdef CONFIG_ARCH_LOWGETC
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: lowinstream_getc
****************************************************************************/
static int lowinstream_getc(FAR struct lib_instream_s *this)
{
int ret;
DEBUGASSERT(this);
/* Get the next character from the incoming stream */
ret = up_getc(ch);
if (ret != EOF)
{
this->nget++;
}
return ret;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: lib_lowinstream
*
* Description:
* Initializes a stream for use with low-level, architecture-specific I/O.
*
* Input parameters:
* stream - User allocated, uninitialized instance of struct
* lib_lowinstream_s to be initialized.
*
* Returned Value:
* None (User allocated instance initialized).
*
****************************************************************************/
void lib_lowinstream(FAR struct lib_instream_s *stream)
{
stream->get = lowinstream_getc;
stream->nget = 0;
}
#endif /* CONFIG_ARCH_LOWGETC */