BIN=stm32vldiscovery-linux-template

TOOLS_PATH=/home/ajk/stm32/gcc-arm-none-eabi-4_7-2012q4
TOOLS_PREFIX=arm-none-eabi-
TOOLS_VERSION=4.7.3

CFLAGS=-c -mcpu=cortex-m3 -mthumb -Wall -O0 -mapcs-frame -D__thumb2__=1
CFLAGS+=-msoft-float -gdwarf-2 -mno-sched-prolog -fno-hosted -mtune=cortex-m3
CFLAGS+=-march=armv7-m -mfix-cortex-m3-ldrd -ffunction-sections -fdata-sections
CFLAGS+=-I./cmsis -I./stm32_lib -I.
ASFLAGS=-mcpu=cortex-m3 -I./cmsis -I./stm32_lib -gdwarf-2 -gdwarf-2
LDFLAGS=-static -mcpu=cortex-m3 -mthumb -mthumb-interwork -Wl,--start-group
LDFLAGS+=-L$(TOOLS_PATH)/lib/gcc/arm-none-eabi/$(TOOLS_VERSION)/thumb2
LDFLAGS+=-L$(TOOLS_PATH)/arm-none-eabi/lib/thumb2 -lc -lg -lstdc++ -lsupc++ -lgcc -lm
#LDFLAGS+=--section-start=.text=0x8000000
LDFLAGS+=-Wl,--end-group -Xlinker -Map -Xlinker $(BIN).map -Xlinker
LDFLAGS+=-T ./stm32_lib/device_support/gcc/stm32f100rb_flash.ld -o $(BIN).elf

CC=$(TOOLS_PATH)/bin/$(TOOLS_PREFIX)gcc-$(TOOLS_VERSION)
AS=$(TOOLS_PATH)/bin/$(TOOLS_PREFIX)as
SIZE=$(TOOLS_PATH)/bin/$(TOOLS_PREFIX)size

CMSISSRC=./cmsis/core_cm3.c
STM32_LIBSRC=./stm32_lib/system_stm32f10x.c ./stm32_lib/stm32f10x_it.c
STM32_LIBSRC+=./stm32_lib/stm32f10x_rcc.c ./stm32_lib/stm32f10x_gpio.c
SRC=main.c

OBJ=core_cm3.o system_stm32f10x.o stm32f10x_it.o startup_stm32f10x_md_vl.o
OBJ+=stm32f10x_rcc.o stm32f10x_gpio.o
OBJ+=main.o

all: ccmsis cstm32_lib cc ldall
$(SIZE) -B $(BIN).elf

ccmsis: $(CMSISSRC)
$(CC) $(CFLAGS) $(CMSISSRC)

cstm32_lib: $(STM32_LIBSRC)
$(CC) $(CFLAGS) $(STM32_LIBSRC)
$(AS) $(ASFLAGS) ./stm32_lib/device_support/gcc/startup_stm32f10x_md_vl.S -o startup_stm32f10x_md_vl.o

cc: $(SRC)
$(CC) $(CFLAGS) $(SRC) ./sys.c

ldall:
$(CC) $(OBJ) $(LDFLAGS)

.PHONY: clean load

clean:
rm -f $(OBJ) \
$(BIN).map \
$(BIN).elf
make clean -C ./stlink/build/

load: $(BIN).elf
./flashing_stm32vldiscovery.sh $(BIN).elf

  while (1) {}

#include "stm32f10x.h"

void RCC_init() {
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
}

int main(void) {
  GPIO_InitTypeDef GPIOC_init_params;

  RCC_init();

  GPIOC_init_params.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
  GPIOC_init_params.GPIO_Speed = GPIO_Speed_10MHz;
  GPIOC_init_params.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIOC_init_params);

  GPIO_SetBits(GPIOC, GPIO_Pin_8);
  GPIO_SetBits(GPIOC, GPIO_Pin_9);

  while (1) {}
}

void main(void) {
...
  while (1) {}
}

/home/ajk/stm32/gcc-arm-none-eabi-4_7-2012q4/bin/../lib/gcc/arm-none-eabi/4.7.3/../../../../arm-none-eabi/lib/armv7-m/libc.a(lib_a-exit.o)
                              /home/ajk/stm32/gcc-arm-none-eabi-4_7-2012q4/bin/../lib/gcc/arm-none-eabi/4.7.3/../../../../arm-none-eabi/lib/armv7-m/crt0.o (exit)

void _exit(int i)
{
    while (1);
}