linker scripts « LeafLabs Garden

linker scripts

(4 posts) (3 voices)

kqr2
Member

I noticed that the bootloader and the libmaple library use different linker scripts. The bootloader is based off of the Raisonance Ride 7 whereas libmaple is based off of CodeSourcery.

The bootloader linker script seems simpler and more readable to me. Is there an advantage to the CodeSourcery based one?

https://github.com/leaflabs/maple-bootloader/blob/master/stm32_lib/c_only_md_RAM.ld
https://github.com/leaflabs/libmaple/blob/master/support/ld/maple/flash.ld

EDIT : It appears that the libmaple code on github was refactored while I posted this message. For easy reference and archive purposes:

bootloader : http://pastebin.com/wn3QNx5w
libmaple : http://pastebin.com/WyXHY7yE

Posted 4 years ago #
mbolivar
LeafLabs

kqr2,

Yup, the refactor merge just went through. The linker scripts in particular were largely redone; the common functionality was abstracted out (common_ram.inc and common_rom.inc in support/ld/), and only particularities for individual boards are left in the individual scripts.

Posted 4 years ago #
mbolivar
LeafLabs

Also, the advantages of the libmaple linker scripts are that they support C++; the bootloader is written in pure C.

Posted 4 years ago #
poslathian
LeafLabs

yes the reason for this (historically and currently) is that the bootloader is a C-only program, whereas the Wirish library required C++ support

Posted 4 years ago #

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