[Bug 18832] New: compiling with -fprofile-generate fails on sfnt2fnt due to hidden symbol

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=18832

           Summary: compiling with -fprofile-generate fails on sfnt2fnt
                    due to hidden symbol
           Product: Wine
           Version: 1.1.23
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tools
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: scott at open-vote.org


I've been attempting to experiment with compiling Wine using profile guided
optimization, however make fails in tools/sfnt2fnt due to a hidden symbol.

GCC version: 4.3  on Ubuntu 9.04

x86_64-linux-gnu-gcc -m32 -Wall -g -O2 -fprofile-generate -o sfnt2fnt
sfnt2fnt.o -L../libs/wine -lwine ../libs/port/libwine_port.a  -lfreetype -lz
-Wl,--rpath,\$ORIGIN/../libs/wine
/usr/bin/ld: sfnt2fnt: hidden symbol `__gcov_merge_add' in
/usr/lib/gcc/x86_64-linux-gnu/4.3.3/32/libgcov.a(_gcov_merge_add.o) is
referenced by DSO
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: ld returned 1 exit status
make[1]: *** [sfnt2fnt] Error 1
make[1]: Leaving directory `/home/scott/src/wine-1.1.23-profiled/tools'
make: *** [tools] Error 2

If I try hacking the makefile to add the -fno-profile-generate flag after that
one, I get this error:

x86_64-linux-gnu-gcc -m32 -Wall -g -O2 -fprofile-generate -fno-profile-generate
-o sfnt2fnt sfnt2fnt.o -L../libs/wine -lwine ../libs/port/libwine_port.a 
-lfreetype -lz -Wl,--rpath,\$ORIGIN/../libs/wine
sfnt2fnt.o: In function `exit_on_signal':
/home/scott/src/wine-1.1.23-profiled/tools/sfnt2fnt.c:167: undefined reference
to `__gcov_indirect_call_profiler'
sfnt2fnt.o: In function `cleanup':
/home/scott/src/wine-1.1.23-profiled/tools/sfnt2fnt.c:162: undefined reference
to `__gcov_indirect_call_profiler'
sfnt2fnt.o: In function `main':
/home/scott/src/wine-1.1.23-profiled/tools/sfnt2fnt.c:567: undefined reference
to `__gcov_indirect_call_profiler'
sfnt2fnt.o: In function `fill_fontinfo':
/home/scott/src/wine-1.1.23-profiled/tools/sfnt2fnt.c:416: undefined reference
to `__gcov_one_value_profiler'
sfnt2fnt.o: In function `global constructors keyed to 65535_0_main':
/home/scott/src/wine-1.1.23-profiled/tools/sfnt2fnt.c:793: undefined reference
to `__gcov_init'
sfnt2fnt.o:(.data+0x44): undefined reference to `__gcov_merge_add'
sfnt2fnt.o:(.data+0x50): undefined reference to `__gcov_merge_single'
../libs/wine/libwine.so: undefined reference to `__gcov_pow2_profiler'
../libs/wine/libwine.so: undefined reference to `__gcov_interval_profiler'
../libs/wine/libwine.so: undefined reference to `__gcov_execv'
collect2: ld returned 1 exit status
make[1]: *** [sfnt2fnt] Error 1
make[1]: Leaving directory `/home/scott/src/wine-1.1.23-profiled/tools'
make: *** [tools] Error 2


This is strange as compiling without -fprofile-generate works fine.

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