QUERY · ISSUE

RFC: Use board name for firmware files

openby chrismas9opened 2025-01-05updated 2025-03-03

enhancementports

Description

Whenever I build firmware for a board I need to rename firmware.elf, etc to the board name before distributing it to users. Would it be useful to replace "firmware" with the board name in Makefile to automate this? I have tested it and the result looks like this:

LINK build-PYBV10/PYBV10.elf
   text    data     bss     dec     hex filename
 364920      52   26908  391880   5fac8 build-PYBV10/PYBV10.elf
GEN build-PYBV10/PYBV10-0.bin
GEN build-PYBV10/PYBV10-1.bin
GEN build-PYBV10/PYBV10.hex
GEN build-PYBV10/PYBV10.dfu

If interested I can submit a PR for the stm32 port, and probably other arm ports, but I don't have the build environment to do non-arm ports.

Code Size

No response

Implementation

I intend to implement this feature and would submit a Pull Request if desirable

Code of Conduct

Yes, I agree

CANDIDATE · PULL REQUEST

Put some code into the first 16K of flash

mergedby dhylandsopened 2014-08-16updated 2014-08-16

This basically shrinks the remaining size of flash in the portion
that goes after the internal flash drive.

Comparison of the overall flash usage:

BEFORE:

LINK build-PYBV10/firmware.elf
   text    data     bss     dec     hex filename
 228412     392   28104  256908   3eb8c build-PYBV10/firmware.elf

AFTER:

LINK build-PYBV10/firmware.elf
   text    data     bss     dec     hex filename
 228416     392   28104  256912   3eb90 build-PYBV10/firmware.elf

and the section sizes BEFORE:

2885 >objdump -h build-PYBV10/firmware.elf 

build-PYBV10/firmware.elf:     file format elf32-little

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .isr_vector   00000188  08000000  08000000  00008000  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  1 .text         00037ab4  08020000  08020000  00010000  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 .data         00000188  20000000  08057ab4  00048000  2**2
                  CONTENTS, ALLOC, LOAD, DATA
  3 .bss          000025c8  20000188  08057c3c  00048188  2**2
                  ALLOC
  4 .heap         00004000  20002750  08057c3c  0004a750  2**0
                  ALLOC
  5 .stack        00000800  20006750  08057c3c  0004e750  2**0
                  ALLOC
  6 .ARM.attributes 00000035  00000000  00000000  00048188  2**0
                  CONTENTS, READONLY
  7 .comment      00000070  00000000  00000000  000481bd  2**0
                  CONTENTS, READONLY

and AFTER:

2889 >objdump -h build-PYBV10/firmware.elf 

build-PYBV10/firmware.elf:     file format elf32-little

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .isr_vector   000033e4  08000000  08000000  00008000  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .text         0003485c  08020000  08020000  00010000  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 .data         00000188  20000000  0805485c  00048000  2**2
                  CONTENTS, ALLOC, LOAD, DATA
  3 .bss          000025c8  20000188  080549e4  00048188  2**2
                  ALLOC
  4 .heap         00004000  20002750  080549e4  0004a750  2**0
                  ALLOC
  5 .stack        00000800  20006750  080549e4  0004e750  2**0
                  ALLOC
  6 .ARM.attributes 00000035  00000000  00000000  00048188  2**0
                  CONTENTS, READONLY
  7 .comment      00000070  00000000  00000000  000481bd  2**0
                  CONTENTS, READONLY