Near point #59
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Near point #59
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There is one thing that is broken. If you guess the entry number for the function address for the function that starts the short table, you will get the guess from the normal table. This seems like a clear off by one error somewhere.
Test using `multi_levels.cpp` symbol CSV: ```bash python3 nearpoint.py multi.csv -b 12 -s 7 ``` Test using `firefox.cpp` sorted symbols CSV: ```bash python3 nearpoint.py multi.csv -b 12 ```
The nm command is:
```
arm-none-eabi-nm app.elf --size-sort --radix=d | grep " [Tt] " | awk '{print $1}' > funct.nm
```
Also -ffunction-sections is REQUIRED to relocate the functions.
My build process is kind of this: - From the root of the repo, build demos: ``` conan build demos -pr stm32f103c8 -pr arm-gcc-12.3 \ -o "*:runtime=estell" -s build_type=Release ``` - Generate linker script function ordering: ``` python3 demos/edx_extract.py \ demos/build/stm32f103c8/MinSizeRel/multi_levels.elf ``` - Move `multi_levels.elf.nm` to `demos/` - Move `multi_levels.elf.part.ld` to `demos/` - Generate near point tables: ``` python3 scripts/nearpoint.py demos/multi_levels.elf.nm -n -b 10 ``` - Build again to pull in the new ordering and near point table. - Dump the list of functions in order using `nm` ``` arm-none-eabi-nm --print-size -n \ demos/build/stm32f103c8/MinSizeRel/multi_levels.elf | \ grep " [TtWw] " > demos/multi_levels.elf.func ``` - Compare function order of `demos/multi_levels.elf.func` with `multi_levels.elf.part.ld`
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Closing this for now. Will bring back nearpoint on a later version of this repo. |
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