GCC generating jump-to-ARM-mode BLX instruction on Cortex M3.

[master-q]

http://communities.mentor.com/community/cs/archives/arm-gnu/msg01904.html

Could you support setting "stay in Thumb mode" bit automatically with compiling with -mthumb option?

I am using summon-arm-toolchain with below options.
But the compiling does not support the bit.
Now I set the bit manually from C language.

$ arm-none-eabi-gcc -g -O -Wall -mlittle-endian -mthumb -mcpu=cortex-m4 -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard -ffreestanding -nostdlib -I. -std=gnu99 xxx.c

Best regards,
Kiwamu Okabe