[Bug target/43729] Mach-O LTO support needed for darwin

Sat May 8 14:39:00 GMT 2010


------- Comment #45 from howarth at nitro dot med dot uc dot edu  2010-05-08 14:39 -------
Attached example failing testcase from lto.exp when using proposed patch from
http://gcc.gnu.org/ml/gcc-patches/2010-05/msg00577.html on
powerpc-apple-darwin9.  In this testcase, the failure appears as...
/Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/
--save-temps -O0 -fwhopr -c -o c_lto_20081111_0.o /
Users/howarth/gcc/gcc/testsuite/gcc.dg/lto/20081111_0.c
/Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/
--save-temps -O0 -fwhopr -c -o c_lto_20081111_0.o /
Users/howarth/gcc/gcc/testsuite/gcc.dg/lto/20081111_0.c
 /Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/
c_lto_20081111_0.o c_lto_20081111_1.o -v --save-te
mps -O0 -fwhopr       -o gcc-dg-lto-20081111-01
Reading specs from /Users/howarth/darwin_objdir/gcc/specs
COLLECT_GCC=/Users/howarth/darwin_objdir/gcc/xgcc
COLLECT_LTO_WRAPPER=/Users/howarth/darwin_objdir/gcc/lto-wrapper
Target: powerpc-apple-darwin9.8.0
Configured with: ../gcc/configure --prefix=/Users/howarth/dist
--enable-languages=c --with-gmp=/sw --with-libiconv-prefix=/sw
 --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/l
ib --enable-lto --disable-bootstrap --enable-checking
Thread model: posix
gcc version 4.6.0 20100508 (experimental) (GCC) 
COMPILER_PATH=/Users/howarth/darwin_objdir/gcc/
LIBRARY_PATH=/Users/howarth/darwin_objdir/gcc/:/usr/lib/
COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.5.8'
'-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fwhopr' '-
o' 'gcc-dg-lto-20081111-01'
 /Users/howarth/darwin_objdir/gcc/collect2 -dynamic -arch ppc
-macosx_version_min 10.5.8 -weak_reference_mismatches non-weak 
-o gcc-dg-lto-20081111-01 -lcrt1.10.5.o -L/Users/howarth/darwin_objdir/gcc
c_lto_20081111_0.o c_lto_20081111_1.o -fwhopr -lgc
c_s.10.5 -lgcc_ext.10.5 -lgcc -lSystemStubs -lSystem
collect2 version 4.6.0 20100508 (experimental) (Darwin/PowerPC)
/Users/howarth/darwin_objdir/gcc/collect-ld -dynamic -arch ppc
-macosx_version_min 10.5.8 -weak_reference_mismatches non-weak
 -o gcc-dg-lto-20081111-01 -lcrt1.10.5.o -L/Users/howarth/darwin_objdir/gcc
c_lto_20081111_0.o c_lto_20081111_1.o -lgcc_s.10.
5 -lgcc_ext.10.5 -lgcc -lSystemStubs -lSystem
 /sw/bin/gnm -n c_lto_20081111_0.o
 /sw/bin/gnm -n c_lto_20081111_1.o
/Users/howarth/darwin_objdir/gcc/lto-wrapper
/Users/howarth/darwin_objdir/gcc/xgcc -mmacosx-version-min=10.5.8
-B/Users/howar
th/darwin_objdir/gcc/ -v -save-temps -O0 -fwhopr -o gcc-dg-lto-20081111-01
c_lto_20081111_0.o c_lto_20081111_1.o
Reading specs from /Users/howarth/darwin_objdir/gcc/specs
COLLECT_GCC=/Users/howarth/darwin_objdir/gcc/xgcc
COLLECT_LTO_WRAPPER=/Users/howarth/darwin_objdir/gcc/lto-wrapper
Target: powerpc-apple-darwin9.8.0
Configured with: ../gcc/configure --prefix=/Users/howarth/dist
--enable-languages=c --with-gmp=/sw --with-libiconv-prefix=/sw
 --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/l
ib --enable-lto --disable-bootstrap --enable-checking
Thread model: posix
gcc version 4.6.0 20100508 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-combine' '-c'
'-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out' '-fwpa'
'-mmacosx-version-min=10.5.8
' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-dumpbase'
'gcc-dg-lto-20081111-01' '-dumpdir' 'c_lto_20081
111_0.o'
 /Users/howarth/darwin_objdir/gcc/lto1 -fPIC -quiet -dumpbase
gcc-dg-lto-20081111-01 -dumpdir c_lto_20081111_0.o -mmacosx-ver
sion-min=10.5.8 -auxbase c_lto_20081111_1 -O0 -version
-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out -fwpa @/var/tmp//cc
LYFBxO
GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental)
(powerpc-apple-darwin9.8.0)
        compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version
4.3.1, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental)
(powerpc-apple-darwin9.8.0)
        compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version
4.3.1, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
COMPILER_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/
LIBRARY_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/:/usr/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-combine' '-c'
'-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out' '-fwpa'
'-mmacosx-version-min=10.5.8
' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-dumpbase'
'gcc-dg-lto-20081111-01' '-dumpdir' 'c_lto_20081
111_0.o'
COLLECT_GCC_OPTIONS='-combine' '-c'
'-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out' '-fwpa'
'-mmacosx-version-min=10.5.8
' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-dumpbase'
'gcc-dg-lto-20081111-01' '-dumpdir' 'c_lto_20081
111_0.o'
Reading specs from /Users/howarth/darwin_objdir/gcc/specs
COLLECT_GCC=/Users/howarth/darwin_objdir/gcc/xgcc
COLLECT_LTO_WRAPPER=/Users/howarth/darwin_objdir/gcc/lto-wrapper
Target: powerpc-apple-darwin9.8.0
Configured with: ../gcc/configure --prefix=/Users/howarth/dist
--enable-languages=c --with-gmp=/sw --with-libiconv-prefix=/sw
 --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/l
ib --enable-lto --disable-bootstrap --enable-checking
Thread model: posix
gcc version 4.6.0 20100508 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8'
'-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra
ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o'
 /Users/howarth/darwin_objdir/gcc/lto1 -fPIC -quiet -dumpbase
c_lto_20081111_1.wpa.o -mmacosx-version-min=10.5.8 -auxbase-str
ip c_lto_20081111_1.wpa.ltrans.o -O0 -version -fltrans c_lto_20081111_1.wpa.o
-o c_lto_20081111_1.wpa.s
GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental)
(powerpc-apple-darwin9.8.0)
        compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version
4.3.1, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental)
(powerpc-apple-darwin9.8.0)
        compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version
4.3.1, MPFR version 2.4.1, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8'
'-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra
ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o'
 /Users/howarth/darwin_objdir/gcc/as -arch ppc -o c_lto_20081111_1.wpa.ltrans.o
c_lto_20081111_1.wpa.s
COMPILER_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/
LIBRARY_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/:/usr/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8'
'-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra
ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o'
COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8'
'-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra
ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o'
/Users/howarth/darwin_objdir/gcc/collect-ld -dynamic -arch ppc
-macosx_version_min 10.5.8 -weak_reference_mismatches non-weak
 -o gcc-dg-lto-20081111-01 -lcrt1.10.5.o -L/Users/howarth/darwin_objdir/gcc
c_lto_20081111_1.wpa.ltrans.o -lgcc_s.10.5 -lgcc_
ext.10.5 -lgcc -lSystemStubs -lSystem
Undefined symbols:
  "_main", referenced from:
      start in crt1.10.5.o
ld: symbol(s) not found
collect2: ld returned 1 exit status


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43729