http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46055
--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-18 12:23:36 UTC --- (In reply to comment #8) > Hmm, does -fuse-linker-plugin have the same side-effects as -fwhole-program? > That will break symbol use by dlopened objects and we have to avoid that. > [...@gnu-6 pr46055]$ make /export/build/gnu/gcc/build-x86_64-linux/prev-gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/prev-gcc/ -O2 -fuse-linker-plugin -fwhopr -o foo foo.i ld.gold: /tmp/ccIRVeGM.ltrans0.ltrans.o: in function main:ccIRVeGM.ltrans0.o(.text+0x3): error: undefined reference to 'pstat_getstatic' collect2: ld returned 1 exit status make: *** [foo] Error 1 [...@gnu-6 pr46055]$ /export/build/gnu/gcc/build-x86_64-linux/prev-gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/prev-gcc/ -O2 -fwhopr -o foo foo.i /tmp/cczPtxXa.o: In function `main': foo.i:(.text+0x3): undefined reference to `pstat_getstatic' collect2: ld returned 1 exit status [...@gnu-6 pr46055]$ /export/build/gnu/gcc/build-x86_64-linux/prev-gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/prev-gcc/ -O2 -fwhole-program -o foo foo.i /tmp/ccB81NJo.o: In function `main': foo.i:(.text+0x3): undefined reference to `pstat_getstatic' collect2: ld returned 1 exit status [...@gnu-6 pr46055]$ /export/build/gnu/gcc/build-x86_64-linux/prev-gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/prev-gcc/ -O2 -fwhole-program -o foo foo.i -fuse-linker-plugin ld.gold: /tmp/cc4NeRs5.o: in function main:foo.i(.text+0x3): error: undefined reference to 'pstat_getstatic' collect2: ld returned 1 exit status [...@gnu-6 pr46055]$ It only happens with "-fuse-linker-plugin -fwhopr".
