bugTiny C Compiler - Bugs: bug #51882, tcc requires function flag to be...


bug #51882: tcc requires function flag to be set in elf files for standard functions

Submitter:  None
Submitted:  Mon 28 Aug 2017 08:20:18 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Mon 28 Aug 2017 08:20:18 PM UTC, original submission:  

When you create an elf file with another program and this file uses standard C functions like printf(), tcc does not recognize them as functions until the function flag is set for the symbol.

A more detailed description of the problem can be found in this stackoverflow answer:

"It appears that TCC requires specific type information on functions that are external linkage like printf. By default NASM creates references to symbols with a NOTYPE attribute in the ELF objects. This seems to confuse TCC as it seems to expect external function symbols to be marked with a FUNCTION type."

The SO question is specific for nasm, but the problem should appear with other programs too.



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