Date: Wed, 13 Feb 2019 17:31:46 -0800 From: "Jin Guojun[VFF]" <jguojun@gmail.com> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: what causes Clang to use libgcc_s.so in FreeBSD 12.0-R linker Message-ID: <14887cbb-a6ef-c6ac-f7b2-2d91e4c72351@gmail.com>
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Following CC command used for build a shared library that worked on all FreeBSD releases before 12-R. The -v CC option shows that linker indeed involves libgcc and gcc_s somehow, but no -static option was shown. Not clear what the error message implies. Also, none of these source code has GNU stuff in it and what linker tried to do with gcc libraries? Is something changed for building shared libraries under 12-R? Thanks, -Jin FBSD12: cc -Wl,-r -o libccs.so `lorder avail_type.so arg_vc.so c_array.so calibrate.so colortog .so c_map.so colort90.so dbvfft3d.so eta.so errors.so filter_f.so fits_io.so fourier.so gaussian .so glb_vars.so histgram.so icc_r.so io_ready.so libpbm.so libpbm2.so libpbm4.so libpgm1.so libp pm1.so libppm3.so libpbm1.so ln2argv.so message.so pict_r.so pgm_r.so q_sort.so rotate90.so t_co nsum.so tv_random.so time-out.so dbg_memsz.so to_sep.so to_8.so quantto8.so sub_mean.so zalloc.s o vfft3d.so vfft_2p.so c_map1.so c_to_c.so buffernw.so checksum.so dicm_h.so dir_unix.so eget_ws z.so gif_r.so ip-hdr.so private.so piperead.so parsargu.so rast_r.so sock_cnct.so sock_init.so s ock_subr.so swap_all.so table_if.so tv_empty.so tvmath.so u_db.so zreopen.so pip_read.so | tsort ` /usr/bin/ld: error: attempted static link of dynamic object /usr/lib/libgcc_s.so /usr/bin/ld: error: attempted static link of dynamic object /usr/lib/libgcc_s.so cc: error: linker command failed with exit code 1 (use -v to see invocation) *** Error code 1 (ignored) FBSD12: cc -v -Wl,-r -o libccs.so `lorder avail_type.so arg_vc.so c_array.so calibrate.so colortog.so c _map.so colort90.so dbvfft3d.so eta.so errors.so filter_f.so fits_io.so fourier.so gaussian.so g lb_vars.so histgram.so icc_r.so io_ready.so libpbm.so libpbm2.so libpbm4.so libpgm1.so libppm1.s o libppm3.so libpbm1.so ln2argv.so message.so pict_r.so pgm_r.so q_sort.so rotate90.so t_consum. so tv_random.so time-out.so dbg_memsz.so to_sep.so to_8.so quantto8.so sub_mean.so zalloc.so vff t3d.so vfft_2p.so c_map1.so c_to_c.so buffernw.so checksum.so dicm_h.so dir_unix.so eget_wsz.so gif_r.so ip-hdr.so private.so piperead.so parsargu.so rast_r.so sock_cnct.so sock_init.so sock_s ubr.so swap_all.so table_if.so tv_empty.so tvmath.so u_db.so zreopen.so pip_read.so | tsort` FreeBSD clang version 6.0.1 (tags/RELEASE_601/final 335540) (based on LLVM 6.0.1) Target: x86_64-unknown-freebsd12.0 Thread model: posix InstalledDir: /usr/bin "/usr/bin/ld" --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-ne w-dtags -o libccs.so /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o -L/usr/lib -r pip_read. so zreopen.so u_db.so tv_empty.so table_if.so rast_r.so parsargu.so piperead.so private.so ip-hd r.so gif_r.so eget_wsz.so dir_unix.so dicm_h.so checksum.so buffernw.so c_map1.so vfft_2p.so sub _mean.so to_8.so to_sep.so dbg_memsz.so time-out.so tv_random.so t_consum.so pgm_r.so pict_r.so ln2argv.so libppm3.so libppm1.so libpgm1.so libpbm2.so libpbm.so io_ready.so icc_r.so histgram.s o glb_vars.so gaussian.so fits_io.so filter_f.so eta.so dbvfft3d.so colort90.so c_map.so colorto g.so calibrate.so c_array.so arg_vc.so avail_type.so tvmath.so swap_all.so sock_init.so sock_cnc t.so vfft3d.so quantto8.so rotate90.so q_sort.so libpbm1.so libpbm4.so fourier.so sock_subr.so c _to_c.so zalloc.so errors.so message.so -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as- needed -lgcc_s --no-as-needed /usr/lib/crtend.o /usr/lib/crtn.o /usr/bin/ld: error: attempted static link of dynamic object /usr/lib/libgcc_s.so /usr/bin/ld: error: attempted static link of dynamic object /usr/lib/libgcc_s.so cc: error: linker command failed with exit code 1 (use -v to see invocation)
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