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On Tuesday 19 November 2013 08:27:44 billium wrote: |
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> I've been using crossdev with an STM32F100 for a while and it works |
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> great ... thanks to all involved. |
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> I'm now want to use newlib. The tuple I use is arm-none-eabi. |
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correct |
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> Is there |
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> anything I should put in the Makefile of the project or changes to |
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> crossdev to prevent multiple definition of syscalls e.g. _write. |
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most likely you're not defining one of the syscall symbols which is causing the |
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stub one to get linked in |
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if you read the libgloss arm syscalls.c, you'll see that they're all written |
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to assume you've got a handler installed to listen to "swi" calls. then in |
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your handler, you'd decode what it is the library is trying to do. |
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if, instead, you want to hijack _write directly, you'll need to do it for |
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every symbol defined in /usr/arm-none-eabi/lib/libc.a(lib_a-syscalls.o). you |
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can use `readelf -s` to see them. |
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sadly, libgloss tends to be undocumented and vary based on architecture. |
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> Also is there any way to use newlib-nano. |
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no idea what that is |
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-mike |
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