stm32 - Move embedded programming from Keil to Linux

I'm currently using Keil to develop for an STM32 discovery board. My project is close to finished, and I'd like to move to a Linux based building environment. I've been using the preconfigured flashing tool and the STLink drivers for windows to flash the board, and I got keil to export a bin file, which I managed to flash on my Linux machine using qSTLink2. So far, so good.

Now I'm stuck on moving the process of building the entire project. Specifically:

How do I port my .uvproj to a makefile, while taking things like the 'startup_stm32l1xx_md.s' startup file into account?

Answer

Got it done. I figured I'd share my results so others can use it. Thanks for your time, everyone.

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I used this ARM toolchain to build my project, and the texane/stlink library, which comes with the ./st-flash tool, to flash the binary to my STM32L1. While texane/stlink comes with GDB, I found I could get the building+flashing process done without it.

My Makefile ended up looking like this. It isn't very pretty or abstract, but it gets the job done.

all:
    arm-none-eabi-gcc -T stm32l1xx.ld -mthumb -mcpu=cortex-m3 -D STM32L1XX_MD -D USE_STDPERIPH_DRIVER startup_stm32l1xx_md.s system_stm32l1xx.c main.c [ sources ] -lm --specs=nosys.specs -o Project.elf

In which:

• arm-none-eabi-gcc
  The ARM toolchain


• -T stm32l1xx.ld
  The linker document


• -mthumb -mcpu=cortex-m3
  
  Tell GCC this is for an M3


• -D STM32L1XX_MD -D USE_STDPERIPH_DRIVER
  Defines for the Standard Peripheral Driver


• startup_stm32l1xx_md.s
  GCC oriented startup document.


• system_stm32l1xx.c main.c [ sources ]
  List of my source files


• -lm
  For Math.h(LibMath)


• --specs=nosys.specs
  
  Don't use sytems calls like _exit.


• -o Project.elf
  Output name