On Wed, Mar 29, 2006 at 10:18:31PM +0900, SUGIOKA Toshinobu wrote: > Hi, > > For sh4-unknown-linux target, libgcc_s.so is not symbolic link but linker > script > that is > > GROUP ( libgcc_s.so.1 libgcc.a ) > > I hear this is because some functions are not included in libgcc_s.so.1 and > they are > only in libgcc.a. > > But now, "gcc -v -o hello hello.c" gives following output on linking phase. > > /usr/libexec/gcc/sh4-unknown-linux/4.1.0/collect2 --eh-frame-hdr -m > shlelf_linux -dynamic-linker /lib/ld-linux.so.2 -o hello > /usr/lib/gcc/sh4-unknown-linux/4.1.0/../../../crt1.o > /usr/lib/gcc/sh4-unknown-linux/4.1.0/../../../crti.o > /usr/lib/gcc/sh4-unknown-linux/4.1.0/crtbegin.o > -L/usr/lib/gcc/sh4-unknown-linux/4.1.0 -L/usr/lib/gcc/sh4-unknown-linux/4.1.0 > -L/usr/lib/gcc/sh4-unknown-linux/4.1.0/../../.. /tmp/ccer52C9.o -lgcc > --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s > --no-as-needed /usr/lib/gcc/sh4-unknown-linux/4.1.0/crtend.o > /usr/lib/gcc/sh4-unknown-linux/4.1.0/../../../crtn.o > > It seems that libgcc.a is linked automatically, so it would be work if > libgcc_s.so is a symbolic link to libgcc_s.so.1. > > If libgcc_s.so were symbolic link, unneeded dependency on libgcc_s.so.1 would > not be written to the executable. > ( '--as-needed' seems not work for linker script )
It sounds like a linker bug. I will look int it. H.J.
