stm32f4discovery and ARM toolchain from launchpad.net

[kyab]

I'm working with libmaple in AeroQuad on stm32f4discovery.
I plan to change toolchain from sourcery(included in Maple IDE) to https://launchpad.net/gcc-arm-embedded because I want to use C++11 or something new.

I tried to build AeroQuad's libmaple with launchpad toolchain, but failed on linker.
I tried to build leaflabs's libmaple with launchpad toolchain, succeeded but seems lack of stm32f4 support..

I've noticed some difference in 2 libmaple but seems difficult for me to merge them.

Could someone give me direction, which way to utilize libmaple with launchpad toolchain on stm32f4discovery?

[mbolivar]

Hi kyab,

You're right that our libmaple currently lacks STM32F4 support. We added
gcc-arm-embedded support with these two commits:

51699a1 fixup! Add support for ARM's GCC ARM embedded toolchain.
2424108 Add support for ARM's GCC ARM embedded toolchain.

I'd try cherry-picking those onto the AeroQuad tree and seeing if that
works.

Best,
Marti

On 04/18/2014 12:17 PM, kyab wrote:

I'm working with libmaple in AeroQuad on stm32f4discovery.
I plan to change toolchain from sourcery(included in Maple IDE) to
https://launchpad.net/gcc-arm-embedded because I want to use C++11 or
something new.

I tried to build AeroQuad's libmaple with launchpad toolchain, but
failed on linker.
I tried to build leaflabs's libmaple with launchpad toolchain,
succeeded but seems lack of stm32f4 support..

I've noticed some difference in 2 libmaple but seems difficult for me
to merge them.

Could someone give me direction, which way to utilize libmaple with
launchpad toolchain on stm32f4discovery?

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[kyab]

Thanks.
Today I tried cherry-pick into AeroQuad by git subtree merge strategy, but some conflict because there are some differences in directory structure and Makefile including orders.

I think the point to support launchpad.net ARM toolchain is to change some part of linker scripts.
I feel it will be easy to do some manual cherry-pick from this repo to AeroQuad version.

BTW is there any plan to port back support for stm32f4 from AeroQuad?