Hi, As i'm getting the same error with Petr, this is a resurrection of an old thread started at:
https://lists.nongnu.org/archive/html/tinycc-devel/2018-06/msg00009.html On Tue, Jul 03, at 09:26 Petr Skočík wrote: > I tracked down what was causing the "./a.out: Symbol `fstat' causes > overflow in R_X86_64_PC32 relocation" message (and I suppose the others as > well). > > My build script attempts to link my executables with my project's dynamic > lib (unless directed otherwise) and then a static version of the same lib > before linking in external libs (the idea is to have a generic recipe that > provides for the possibility that some of my project's executables might > want to refer to project symbols that aren't exported in the shared lib). > It seems it is this double linking ( `tcc something... liblib.so liblib.a` > ), compounded with something in the glibc definition of > fstat, that causes the problem on tcc. > > MCVE: > > #!/bin/sh -eu > cat > liblib.c <<EOF > #include <sys/stat.h> > void f(void) { struct stat sb; fstat(0, &sb); } > EOF > cat > main.c <<EOF > int main() { extern void f(); f(); return 0; } > EOF > : ${CC:=tcc} > $CC liblib.c -fPIC -c; ar rcs liblib.a liblib.o; $CC -o liblib.so liblib.o > -shared > $CC main.c $PWD/liblib.so liblib.a #uncommenting liblib.a removes the error > LD_LIBRARY_PATH=$PWD ./a.out > > In the above reproducer, liblib.a should be ignored because it's not > resolving any undefined references, but instead it appears to be causing > the error message. The following is reproducible on Linux running 4.12.10 on x86_64, with glibc-2.30: cat > liblib.c <<EOF #include <sys/stat.h> void f (void) { struct stat sb; stat(0, &sb); } EOF cat > main.c <<EOF #include <sys/stat.h> int main() { extern void f(); f(); struct stat st; stat ("/tmp", &st); return 0; } EOF tcc liblib.c -fPIC -shared -o liblib.so tcc main.c -llib -L. LD_LIBRARY_PATH=$PWD ./a.out This fails with: ./a.out: Symbol `stat' causes overflow in R_X86_64_PC32 relocation Any advice would be appreciated. > Regards, > Petr Skocik Best, Αγαθοκλής _______________________________________________ Tinycc-devel mailing list Tinycc-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/tinycc-devel
