[Tinycc-devel] Small bug: Uncalled null function pointer literal makes code unlinkable

[Petr Skočík]

Hi. I came across this little bug. It's not a showstopper for me but I thought I'd report it in case somebody knows a quick fix.

example:

c.c:

void y(void);

#define x ((void(*)(void))0)

void call_x() { x?x():y(); }

compiling and attempted linking with

tcc -fPIC c.c -c && tcc -shared -o so.so c.o

on x86_64 (untested elsewhere) gives

c.o: error: Invalid relocation entry [ 6] '.rela.text' @ 0000000c

If gcc/clang is used instead of tcc for the compilation part, the linking part or both, the linking works.

Best regards,

Petr Skocik