1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-16 21:05:35 +03:00

MASSIVEF3 - Add new target.

This commit is contained in:
Dominic Clifton 2014-10-07 06:56:42 +01:00
parent a199685d83
commit 6beec3c6e9
6 changed files with 675 additions and 4 deletions

View file

@ -35,7 +35,7 @@ SERIAL_DEVICE ?= /dev/ttyUSB0
FORKNAME = cleanflight
VALID_TARGETS = NAZE NAZE32PRO OLIMEXINO STM32F3DISCOVERY CHEBUZZF3 CC3D CJMCU EUSTM32F103RC
VALID_TARGETS = NAZE NAZE32PRO OLIMEXINO STM32F3DISCOVERY CHEBUZZF3 CC3D CJMCU EUSTM32F103RC MASSIVEF3
# Valid targets for OP BootLoader support
OPBL_VALID_TARGETS = CC3D
@ -53,7 +53,7 @@ INCLUDE_DIRS = $(SRC_DIR)
# Search path for sources
VPATH := $(SRC_DIR):$(SRC_DIR)/startup
ifeq ($(TARGET),$(filter $(TARGET),STM32F3DISCOVERY CHEBUZZF3 NAZE32PRO))
ifeq ($(TARGET),$(filter $(TARGET),STM32F3DISCOVERY CHEBUZZF3 NAZE32PRO MASSIVEF3))
STDPERIPH_DIR = $(ROOT)/lib/main/STM32F30x_StdPeriph_Driver
USBFS_DIR = $(ROOT)/lib/main/STM32_USB-FS-Device_Driver
@ -81,7 +81,7 @@ INCLUDE_DIRS := $(INCLUDE_DIRS) \
$(CMSIS_DIR)/CM1/DeviceSupport/ST/STM32F30x \
$(ROOT)/src/main/vcp
LD_SCRIPT = $(ROOT)/stm32_flash_f303.ld
LD_SCRIPT = $(ROOT)/stm32_flash_f303_256k.ld
ARCH_FLAGS = -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mfpu=fpv4-sp-d16 -fsingle-precision-constant -Wdouble-promotion
DEVICE_FLAGS = -DSTM32F303xC -DSTM32F303
@ -91,6 +91,11 @@ ifeq ($(TARGET),CHEBUZZF3)
TARGET_FLAGS := $(TARGET_FLAGS) -DSTM32F3DISCOVERY
endif
ifeq ($(TARGET),MASSIVEF3)
# MASSIVEF3 is a VARIANT of STM32F3DISCOVERY
TARGET_FLAGS := $(TARGET_FLAGS) -DSTM32F3DISCOVERY
endif
else ifeq ($(TARGET),$(filter $(TARGET),EUSTM32F103RC))
@ -394,6 +399,15 @@ CHEBUZZF3_SRC = $(STM32F3DISCOVERY_SRC) \
$(HIGHEND_SRC) \
$(COMMON_SRC)
MASSIVEF3_SRC = $(STM32F3DISCOVERY_SRC) \
$(HIGHEND_SRC) \
$(COMMON_SRC)
ifeq ($(TARGET),MASSIVEF3)
LD_SCRIPT = $(ROOT)/stm32_flash_f303_128k.ld
endif
# Search path and source files for the ST stdperiph library
VPATH := $(VPATH):$(STDPERIPH_DIR)/src

View file

@ -69,7 +69,7 @@ enum {
MAP_TO_SERVO_OUTPUT,
};
#if defined(NAZE) || defined(OLIMEXINO) || defined(NAZE32PRO) || defined(STM32F3DISCOVERY) || defined(EUSTM32F103RC)
#if defined(NAZE) || defined(OLIMEXINO) || defined(NAZE32PRO) || defined(STM32F3DISCOVERY) || defined(EUSTM32F103RC) || defined(MASSIVEF3)
static const uint16_t multiPPM[] = {
PWM1 | (MAP_TO_PPM_INPUT << 8), // PPM input
PWM9 | (MAP_TO_MOTOR_OUTPUT << 8), // Swap to servo if needed

View file

@ -0,0 +1,372 @@
/**
******************************************************************************
* @file system_stm32f30x.c
* @author MCD Application Team
* @version V1.1.1
* @date 28-March-2014
* @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F30x devices,
* and is generated by the clock configuration tool
* stm32f30x_Clock_Configuration_V1.0.0.xls
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f30x.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (8 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f30x.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 8MHz, refer to "HSE_VALUE" define
* in "stm32f30x.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
* Supported STM32F30x device
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 72000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 72000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* APB1 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 12000000
*----------------------------------------------------------------------------
* PLLMUL | 6
*-----------------------------------------------------------------------------
* PREDIV | 1
*-----------------------------------------------------------------------------
* USB Clock | ENABLE
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 2
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f30x_system
* @{
*/
/** @addtogroup STM32F30x_System_Private_Includes
* @{
*/
#include "stm32f30x.h"
uint32_t hse_value = HSE_VALUE;
/**
* @}
*/
/* Private typedef -----------------------------------------------------------*/
/** @addtogroup STM32F30x_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x0 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/** @addtogroup STM32F30x_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 72000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F30x_System_Private_FunctionPrototypes
* @{
*/
void SetSysClock(void);
/**
* @}
*/
/** @addtogroup STM32F30x_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* FPU settings ------------------------------------------------------------*/
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */
#endif
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR &= 0xF87FC00C;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE bits */
RCC->CFGR &= (uint32_t)0xFF80FFFF;
/* Reset PREDIV1[3:0] bits */
RCC->CFGR2 &= (uint32_t)0xFFFFFFF0;
/* Reset USARTSW[1:0], I2CSW and TIMs bits */
RCC->CFGR3 &= (uint32_t)0xFF00FCCC;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
//SetSysClock(); // called from main()
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f30x.h file (default value
* 8 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f30x.h file (default value
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate (void)
{
uint32_t tmp = 0, pllmull = 0, pllsource = 0, prediv1factor = 0;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock */
/* Get PLL clock source and multiplication factor ----------------------*/
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
pllmull = ( pllmull >> 18) + 2;
if (pllsource == 0x00)
{
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
}
else
{
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1;
/* HSE oscillator clock selected as PREDIV1 clock entry */
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
}
break;
default: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK clock frequency ----------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK clock frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
void SetSysClock(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------*/
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* Enable Prefetch Buffer and set Flash Latency */
FLASH->ACR = FLASH_ACR_PRFTBE | (uint32_t)FLASH_ACR_LATENCY_1;
/* HCLK = SYSCLK / 1 */
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 1 */
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
/* PCLK1 = HCLK / 2 */
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2;
/* PLL configuration */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLMULL9);
/* Enable PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)RCC_CFGR_SWS_PLL)
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

View file

@ -0,0 +1,76 @@
/**
******************************************************************************
* @file system_stm32f30x.h
* @author MCD Application Team
* @version V1.1.1
* @date 28-March-2014
* @brief CMSIS Cortex-M4 Device System Source File for STM32F30x devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f30x_system
* @{
*/
/**
* @brief Define to prevent recursive inclusion
*/
#ifndef __SYSTEM_STM32F30X_H
#define __SYSTEM_STM32F30X_H
#ifdef __cplusplus
extern "C" {
#endif
/* Exported types ------------------------------------------------------------*/
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/** @addtogroup STM32F30x_System_Exported_Functions
* @{
*/
extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /*__SYSTEM_STM32F30X_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

View file

@ -0,0 +1,59 @@
/*
* This file is part of Cleanflight.
*
* Cleanflight is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Cleanflight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#define LED0_GPIO GPIOE
#define LED0_PIN Pin_8|Pin_12 // Blue LEDs - PE8/PE12
#define LED0_PERIPHERAL RCC_AHBPeriph_GPIOE
#define LED0_INVERTED
#define LED1_GPIO GPIOE
#define LED1_PIN Pin_10|Pin_14 // Orange LEDs - PE10/PE14
#define LED1_PERIPHERAL RCC_AHBPeriph_GPIOE
#define LED1_INVERTED
#define BEEP_GPIO GPIOE
#define BEEP_PIN Pin_9|Pin_13 // Red LEDs - PE9/PE13
#define BEEP_PERIPHERAL RCC_AHBPeriph_GPIOE
#define BEEPER_INVERTED
#define BEEPER_INVERTED
#define BARO_GPIO GPIOC
#define BARO_PIN Pin_13
#define GYRO
#define ACC
#define BEEPER
#define LED0
#define LED1
#define USE_VCP
#define USE_USART1
#define USE_USART2
#define SERIAL_PORT_COUNT 3
#define USE_I2C
#define I2C_DEVICE (I2CDEV_1)
#define SENSORS_SET (SENSOR_ACC)
#define GPS
#define LED_STRIP
#define TELEMETRY
#define SERIAL_RX
#define AUTOTUNE

150
stm32_flash_f303_128k.ld Normal file
View file

@ -0,0 +1,150 @@
/*
*****************************************************************************
**
** File : stm32_flash.ld
**
** Abstract : Linker script for STM32F30x Device with
** 128KByte FLASH and 40KByte RAM
**
*****************************************************************************
*/
/* Entry Point */
ENTRY(Reset_Handler)
/* Highest address of the user mode stack */
_estack = 0x2000A000; /* end of 40K RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x04000000, LENGTH = 126K /* last 2kb used for config storage */
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 40K
MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
KEEP (*(.init))
KEEP (*(.fini))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >FLASH
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array*))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH
/* used by the startup to initialize data */
_sidata = .;
/* Initialized data sections goes into RAM, load LMA copy after code */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
} >RAM AT> FLASH
/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack :
{
. = ALIGN(4);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(4);
} >RAM
/* MEMORY_bank1 section, code must be located here explicitly */
/* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
.memory_b1_text :
{
*(.mb1text) /* .mb1text sections (code) */
*(.mb1text*) /* .mb1text* sections (code) */
*(.mb1rodata) /* read-only data (constants) */
*(.mb1rodata*)
} >MEMORY_B1
/* Remove information from the standard libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ARM.attributes 0 : { *(.ARM.attributes) }
}