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custom linker script

This commit is contained in:
Matthew Kennedy 2020-11-27 19:58:38 -08:00
parent ca6c0d61fa
commit a5f0f4eb3b
2 changed files with 89 additions and 3 deletions
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6
firmware/Makefile
View File

@ -5,7 +5,7 @@
# Compiler options here. # Compiler options here.
ifeq ($(USE_OPT),) ifeq ($(USE_OPT),)
USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16 USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16 -fsingle-precision-constant
endif endif
# C specific options here (added to USE_OPT). # C specific options here (added to USE_OPT).
@ -15,7 +15,7 @@ endif
# C++ specific options here (added to USE_OPT). # C++ specific options here (added to USE_OPT).
ifeq ($(USE_CPPOPT),) ifeq ($(USE_CPPOPT),)
USE_CPPOPT = -fno-rtti -fno-exceptions -ffast-math -funsafe-math-optimizations USE_CPPOPT = -fno-rtti -fno-exceptions -ffast-math -funsafe-math-optimizations -fno-threadsafe-statics -fno-use-cxa-atexit
endif endif
# Enable this if you want the linker to remove unused code and data. # Enable this if you want the linker to remove unused code and data.
@ -111,7 +111,7 @@ include $(CHIBIOS)/tools/mk/autobuild.mk
include $(CHIBIOS)/os/hal/lib/streams/streams.mk include $(CHIBIOS)/os/hal/lib/streams/streams.mk
# Define linker script file here # Define linker script file here
LDSCRIPT= $(STARTUPLD)/STM32F042x6.ld LDSCRIPT= $(CONFDIR)/STM32F042x6.ld
# C sources that can be compiled in ARM or THUMB mode depending on the global # C sources that can be compiled in ARM or THUMB mode depending on the global
# setting. # setting.

86
firmware/cfg/STM32F042x6.ld Normal file
View File

@ -0,0 +1,86 @@
/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
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.
*/
/*
* STM32F042x6 memory setup.
*/
MEMORY
{
/* bootloader (rx) : org = 0x08000000, len = 8k */
flash0 (rx) : org = 0x08000000, len = 24k
flash1 (rx) : org = 0x00000000, len = 0
flash2 (rx) : org = 0x00000000, len = 0
flash3 (rx) : org = 0x00000000, len = 0
flash4 (rx) : org = 0x00000000, len = 0
flash5 (rx) : org = 0x00000000, len = 0
flash6 (rx) : org = 0x00000000, len = 0
flash7 (rx) : org = 0x00000000, len = 0
ram0 (wx) : org = 0x20000000, len = 6k
ram1 (wx) : org = 0x00000000, len = 0
ram2 (wx) : org = 0x00000000, len = 0
ram3 (wx) : org = 0x00000000, len = 0
ram4 (wx) : org = 0x00000000, len = 0
ram5 (wx) : org = 0x00000000, len = 0
ram6 (wx) : org = 0x00000000, len = 0
ram7 (wx) : org = 0x00000000, len = 0
}
/* For each data/text section two region are defined, a virtual region
and a load region (_LMA suffix).*/
/* Flash region to be used for exception vectors.*/
REGION_ALIAS("VECTORS_FLASH", flash0);
REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
/* Flash region to be used for constructors and destructors.*/
REGION_ALIAS("XTORS_FLASH", flash0);
REGION_ALIAS("XTORS_FLASH_LMA", flash0);
/* Flash region to be used for code text.*/
REGION_ALIAS("TEXT_FLASH", flash0);
REGION_ALIAS("TEXT_FLASH_LMA", flash0);
/* Flash region to be used for read only data.*/
REGION_ALIAS("RODATA_FLASH", flash0);
REGION_ALIAS("RODATA_FLASH_LMA", flash0);
/* Flash region to be used for various.*/
REGION_ALIAS("VARIOUS_FLASH", flash0);
REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
/* Flash region to be used for RAM(n) initialization data.*/
REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
/* RAM region to be used for Main stack. This stack accommodates the processing
of all exceptions and interrupts.*/
REGION_ALIAS("MAIN_STACK_RAM", ram0);
/* RAM region to be used for the process stack. This is the stack used by
the main() function.*/
REGION_ALIAS("PROCESS_STACK_RAM", ram0);
/* RAM region to be used for data segment.*/
REGION_ALIAS("DATA_RAM", ram0);
REGION_ALIAS("DATA_RAM_LMA", flash0);
/* RAM region to be used for BSS segment.*/
REGION_ALIAS("BSS_RAM", ram0);
/* RAM region to be used for the default heap.*/
REGION_ALIAS("HEAP_RAM", ram0);
/* Generic rules inclusion.*/
INCLUDE rules.ld