c - elf objcopy --extract-symbol produce an output with a ...

CMake - issue creating .elf file for embedded device

Hello
I am trying to compile a source file for an atmega328p (aka arduino uno). I managed to narrow down the issue, but don't know how to solve it.
This is the file I am trying to compile:
#include "../include/libgpio.h" #define TWSR_REGISTER_OFFSET 3 #define TWI_GYRO_ADDRESS 0b1101000 void main (void) { /* Disable interrupts. */ cli(); /* Reset watchdog. */ wdt_reset(); /* Clear WDRF in MCUSR */ MCUSR &= ~(1< When using those commands I am able to compile everything without issues:
avr-gcc -g -Os -mmcu=atmega328p -c gpio.c avr-gcc -g -mmcu=atmega328p -o gpio.elf gpio.o avr-objcopy -j .text -j .data -O ihex gpio.elf gpio.hex avr-size --format=avr --mcu=atmega328p gpio.elf sudo avrdude -c arduino -p m328p -P /dev/ttyACM0 -U flash:w:gpio.hex 
But when trying to replace the first two commands with the following CMake file it doesn't work:
cmake_minimum_required(VERSION "3.5") project("gpio" LANGUAGES "C") set(CMAKE_C_COMPILER "/home/yalishanda/Downloads/arduino-1.8.5/hardware/tools/avbin/avr-gcc-4.9.2") add_executable( "gpio.elf" "src/libgpio.c" ) target_compile_options( "gpio.elf" PRIVATE "-mmcu=atmega328p" PRIVATE "-std=c99" PRIVATE "-Os" ) 
I am still able to upload it onto the embedded device but I can see my software not being run; instead the device keeps on resetting. It is as if the binary generated by CMake isn't OK.
Does anybody have any idea's?
submitted by technical_questions2 to learnprogramming [link] [comments]

Issue creating .elf file for embedded platform

Hello
I am trying to compile a source file for an atmega328p (aka arduino uno). I managed to narrow down the issue, but don't know how to solve it.
This is the file I am trying to compile:
#include "../include/libgpio.h" #define TWSR_REGISTER_OFFSET 3 #define TWI_GYRO_ADDRESS 0b1101000 void main (void) { /* Disable interrupts. */ cli(); /* Reset watchdog. */ wdt_reset(); /* Clear WDRF in MCUSR */ MCUSR &= ~(1< When using those commands I am able to compile everything without issues:
avr-gcc -g -Os -mmcu=atmega328p -c gpio.c avr-gcc -g -mmcu=atmega328p -o gpio.elf gpio.o avr-objcopy -j .text -j .data -O ihex gpio.elf gpio.hex avr-size --format=avr --mcu=atmega328p gpio.elf sudo avrdude -c arduino -p m328p -P /dev/ttyACM0 -U flash:w:gpio.hex 
But when trying to replace the first two commands with the following CMake file it doesn't work:
cmake_minimum_required(VERSION "3.5") project("gpio" LANGUAGES "C") set(CMAKE_C_COMPILER "/home/yalishanda/Downloads/arduino-1.8.5/hardware/tools/avbin/avr-gcc-4.9.2") add_executable( "gpio.elf" "src/libgpio.c" ) target_compile_options( ${BINARY_NAME} PRIVATE "-mmcu=atmega328p" PRIVATE "-std=c99" PRIVATE "-Os" ) 
I am still able to upload it onto the embedded device but I can see my software not being run; instead the device keeps on resetting. It is as if the binary generated by CMake isn't OK.
Does anybody have any idea's?
submitted by technical_questions2 to cmake [link] [comments]

Automatic Compiling & Flashing of EFM32 Programs

I'm working a Machine Learning project, and I need to gather some data about the run-time of an EFM32 Microcontroller (EZR32LG).
After gathering a small dataset and realizing I need more (A lot more) data, I decided I'd automate the data-gathering process. I've managed to automate most of it, but I'm stuck on one thing.
Before, I used the Simplicity Studio IDE to manually compile, flash and run my code/device, however, since I need a lot of data, I'd like to automate this as well.
I tried reverse-engineering Simplicity Studio's makefiles etc., but I was a bit overwhelmed by them, so I'd like to try a different approach.
What commands do I need to run in order to compile, link and flash a binary for my microcontroller (Silicon Labs EZR32LG, SLWSTK6200A_EZR32LG)?
I've already found the command-line-tool I can use to flash my software (Simplicity Commander), but I'm a bit overwhelmed by all the GCC commands the IDE uses, are there any unnecessary commands/options or things that I could do without?
In case anyone is wondering, here are the commands Simplicity Studio seems to run in order to compile/link a program:
make -j4 all arm-none-eabi-gcc -g -gdwarf-2 -mcpu=cortex-m3 -mthumb '-DEZR32LG330F256R60=1' '-DDEBUG=1' -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/CMSIS/Include" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/kits/common/bsp" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/emlib/inc" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/kits/common/drivers" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/Device/SiliconLabs/EZR32LG/Include" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/kits/SLWSTK6200A_EZR32LG/config" -O0 -Wall -c -fmessage-length=0 -mno-sched-prolog -fno-builtin -ffunction-sections -fdata-sections -std=c99 -MMD -MP -MF"src/bsort.d" -MT"src/bsort.o" -o "src/bsort.o" "../src/bsort.c" arm-none-eabi-gcc -g -gdwarf-2 -mcpu=cortex-m3 -mthumb '-DEZR32LG330F256R60=1' '-DDEBUG=1' -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/CMSIS/Include" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/kits/common/bsp" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/emlib/inc" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/kits/common/drivers" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/Device/SiliconLabs/EZR32LG/Include" -I"C:/SiliconLabs/SimplicityStudio/v3/developesdks/efm32/v2/kits/SLWSTK6200A_EZR32LG/config" -O0 -Wall -c -fmessage-length=0 -mno-sched-prolog -fno-builtin -ffunction-sections -fdata-sections -std=c99 -MMD -MP -MF"src/bsort_block_r129-130.d" -MT"src/bsort_block_r129-130.o" -o "src/bsort_block_r129-130.o" "../src/bsort_block_r129-130.c" arm-none-eabi-gcc -g -gdwarf-2 -mcpu=cortex-m3 -mthumb -T "External_Test.ld" -Xlinker --gc-sections -Xlinker -Map="External_Test.map" --specs=nano.specs -o External_Test.axf "./src/bsort.o" "./src/bsort_block_r129-130.o" "./emlib/em_cmu.o" "./emlib/em_gpio.o" "./emlib/em_system.o" "./CMSIS/ezr32lg/startup_ezr32lg.o" "./CMSIS/ezr32lg/system_ezr32lg.o" -Wl,--start-group -lgcc -lc -lnosys -Wl,--end-group arm-none-eabi-objcopy -O ihex "External_Test.axf" "External_Test.hex" arm-none-eabi-objcopy -O binary "External_Test.axf" "External_Test.bin" arm-none-eabi-size "External_Test.axf" 
Here's the makefile:
################################################################################ # Automatically-generated file. Do not edit! ################################################################################ -include ../makefile.init RM := rm -rf # All of the sources participating in the build are defined here -include sources.mk -include src/subdir.mk -include emlib/subdir.mk -include CMSIS/ezr32lg/subdir.mk -include subdir.mk -include objects.mk ifneq ($(MAKECMDGOALS),clean) ifneq ($(strip $(C_DEPS)),) -include $(C_DEPS) endif endif -include ../makefile.defs # Add inputs and outputs from these tool invocations to the build variables # All Target all: External_Test.axf # Tool invocations External_Test.axf: $(OBJS) $(USER_OBJS) @echo 'Building target: [email protected]' @echo 'Invoking: GNU ARM C Linker' arm-none-eabi-gcc -g -gdwarf-2 -mcpu=cortex-m3 -mthumb -T "External_Test.ld" -Xlinker --gc-sections -Xlinker -Map="External_Test.map" --specs=nano.specs -o External_Test.axf "./src/jfdctint.o" "./src/jfdctint_block_15.o" "./emlib/em_cmu.o" "./emlib/em_gpio.o" "./emlib/em_system.o" "./CMSIS/ezr32lg/startup_ezr32lg.o" "./CMSIS/ezr32lg/system_ezr32lg.o" -Wl,--start-group -lgcc -lc -lnosys -Wl,--end-group @echo 'Finished building target: [email protected]' @echo ' ' @echo 'Building hex file: External_Test.hex' arm-none-eabi-objcopy -O ihex "External_Test.axf" "External_Test.hex" @echo ' ' @echo 'Building bin file: External_Test.bin' arm-none-eabi-objcopy -O binary "External_Test.axf" "External_Test.bin" @echo ' ' @echo 'Running size tool' arm-none-eabi-size "External_Test.axf" @echo ' ' # Other Targets clean: -$(RM) $(OBJS)$(C_DEPS)$(EXECUTABLES) External_Test.axf [email protected] ' ' .PHONY: all clean dependents .SECONDARY: -include ../makefile.targets 
Automating the make command and substituting some things in the makefile wouldn't be too much of an issue, but when looking at the (600+ line) linker map is where I get a bit intimidated.
The same goes for the (200+ line) linker script...
I realize I'm building a debug version of my program, this is intentional and could change in the future.
I also forgot to mention that my previous automation (and the framework I'm integrating into) is written in Java, so Java solutions are a must.
Edit: I just noticed that the commands and the makefile are from different 'runs', if you replace the word 'bsort' in the commands-paragraph with the word jfdctint and keep in mind that the numbers in the filenames are more or less random, you'd get the commands for the run that matches the makefile.
I've also posted this over on IoT Stack Exchange here
submitted by ShibeForceOne to embedded [link] [comments]

Reversing and Cracking first simple Program - bin 0x05 ... All Linux Commands List for beginners and Devops [AVR 003] AVR software installation in Linux (subtitles)

Generating srec (Motorola S format), binary, ihex (Intel Hex) files: When building a project, the LPCXpresso IDE tools create an ARM executable format (AXF) file - which is actually standard ELF/DWARF file. This file can be programmed directly down to your target using the LPCXpresso debug functionality, but it may also be converted into a variety of formats suitable for use in other external ... It turns out that people did a lot of stuff in a really odd way with GNU objcopy when using -O binary that required that we use sections as the primary basis for output. I would imagine that ihex users would not be doing the same sorts of odd tricks and that you could write the output strait from program headers. This would simplify the implementation greatly I think and harden the ... Objcopy ihex binary options. PROM Programmierer würden dann das S-Record-Format lesen und die Daten in die PROMs oder EPROMs verbrennen, die... objcopy can be used to generate a raw binary file by using an output target of ‘binary’ (e.g., use -O binary). When objcopy generates a raw binary file, it will essentially produce a memory dump of the contents of the input object file. All symbols and relocation information will be discarded. The memory dump will start at the load address of the lowest section copied into the output file ... The exact behavior of objcopy is controlled by command-line options. Note that objcopy should be able to copy a fully linked file between any two formats. However, copying a relocatable object file between any two formats may not work as expected. objcopy creates temporary files to do its translations and deletes them afterward. objcopy uses BFD to do all its translation work; it has access to ... objcopy --input-target=ihex --output-target=binary code00.hex code00.bin share improve this answer follow edited Feb 16 '19 at 6:29. Cactus . 24.3k 9 9 gold badges 56 56 silver badges 125 125 bronze badges. answered May 14 '16 at 12:09. A. Genchev A. Genchev. 119 1 1 silver badge 6 6 bronze badges. 1. Beware: this garbles the loading base address. Will work for OPs case though, as the ... huge binary files with objcopy. Ask Question Asked 9 years, 7 months ago. Active 8 years, 4 months ago. Viewed 10k times 5. 5. Im having problems when I define global variables in a basic C program for an ARM9 processor. I'm using EABI GNU compiler and the binary generated from a 12KB elf is 4GB! I assume the issue is with my scatter file but Im having trouble getting my head around it. I have ... arm-none-eabi-objcopy --info binary is one of those yes. ... I assume you have already exhausted the removal of compile and linker options that added (some of) those things in the first place? if you dont add them then you dont need to try to remove them – old_timer Apr 20 '16 at 14:20. just going to ihex and back to elf will remove all symbols, yes? – old_timer Apr 20 '16 at 14:21. add a ... objcopy can be used to generate a raw binary file by using an output target of `binary' (e.g., use `-O binary'). When objcopy generates a raw binary file, it will essentially produce a memory dump of the contents of the input object file. All symbols and relocation information will be discarded. The memory dump will start at the load address of the lowest section copied into the output file ... Use arm-none-eabi-objcopy from GCC for ARM, it has various input output options and BIN to HEX is supported (you supply target address as parameter, see the documentation). bjorn-spockeli over 2 years ago in reply to endnode +1. According to this page it should be something like this arm-none-eabi-objcopy -I binary -O ihex filename.bin filename.hex 0 endnode over 3 years ago. Use arm-none-eabi ...

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Reversing and Cracking first simple Program - bin 0x05 ...

A very simple reversing challenge for Linux GitHub: https://github.com/LiveOverflow/liveoverflow_youtube/tree/master/0x05_simple_crackme_intro_assembler http... Here is a Complete List of Linux Commands for Beginners and developers (Advanced). All commands in Linux are given here in alphabetical order (A to Z)- accept- accept or reject jobs to a ... 6. Fix could not find USB device with vid=0x16c0 pid=0x5dc vendor='www.fischl.de' product='USBasp' - Duration: 9:41. RADAS 4,435 views

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