#1717 PIC16: externs removed if function unreferenced in C source

open
nobody
pic16 target (187)
PIC16
5
2013-07-16
2010-11-27
Christopher Head
No

The compiler does not emit an EXTERN directive into the assembly source for a function whose prototype is provided but that is not called in the C source, meaning if one attempts to call it in assembly source (including, for example, with DEF_HANDLER2 from signal.h), a "Symbol not previously defined" error results. Seeing as an assembly language EXTERN directive doesn't affect the generated code in any way, why not just leave them all in?

Discussion

  • Maarten Brock

    Maarten Brock - 2011-09-15
    • summary: externs removed if function unreferenced in C source --> PIC16: externs removed if function unreferenced in C source
     

  • Philipp Klaus Krause

    Philipp Klaus Krause - 2013-07-16
    • Category: --> PIC16
     

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