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From: Zopolis0 <creatorsmithmdt@gmail.com>
Date: Thu, 15 Dec 2022 13:22:27 +1100
Message-ID: <CAEYL+X-u0YaJxh9NAPjze7c5R8LnR-u1jde6CzskH01nW3Ff7g@mail.gmail.com>
Subject: Re: Java front-end and library patches.
To: Thomas Schwinge <thomas@codesourcery.com>
Cc: gcc-patches@gcc.gnu.org, Joseph Myers <joseph@codesourcery.com>
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Re: 1dedc12d186a110854537e1279b4e6c29f2df35a breakage

I've done some more research, it's not the -dumpbase. Comparing the
java frontend on master as opposed to one based on a commit right
before 1dedc12, the master has '-dumpdir' '.libs/jv-convert-' while
the one before does not, which I believe is causing the breakage.

Master:
zopolis4@epidural ~/g/x/libjava> /bin/bash ./libtool --tag=GCJ
--mode=link /home/zopolis4/gcjbuild/./gcc/gcj
-B/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/ -B/h
ome/zopolis4/gcjbuild/./gcc/ -B/usr/local/x86_64-pc-linux-gnu/bin/
-B/usr/local/x86_64-pc-linux-gnu/lib/ -isystem
/usr/local/x86_64-pc-linux-gnu/include -isystem /usr/local
/x86_64-pc-linux-gnu/sys-include
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava
-fomit-frame-pointer -Usun -v -g -O2  -o jv-convert
--main=gnu.gcj.convert.Convert
 -rpath /usr/local/lib/../lib64 -shared-libgcc
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs libgcj.la
libtool: link: /home/zopolis4/gcjbuild/./gcc/gcj
-B/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/
-B/home/zopolis4/gcjbuild/./gcc/ -B/usr/local/x86_64-pc-linux-gnu/bin/
-B/usr/local/x86_64-pc-linux-gnu/lib/ -isystem
/usr/local/x86_64-pc-linux-gnu/include -isystem
/usr/local/x86_64-pc-linux-gnu/sys-include -fomit-frame-pointer -Usun
-v -g -O2 -o .libs/jv-convert --main=gnu.gcj.convert.Convert
-shared-libgcc
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava
./.libs/libgcj.so -lpthread -lrt -lltdl -lgc -Wl,-rpath
-Wl,/usr/local/lib/../lib64
Reading specs from /home/zopolis4/gcjbuild/./gcc/specs
Reading specs from
/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/libgcj.spec
rename spec startfile to startfileorig
rename spec lib to liborig
COLLECT_GCC=/home/zopolis4/gcjbuild/./gcc/gcj
COLLECT_LTO_WRAPPER=/home/zopolis4/gcjbuild/./gcc/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /home/zopolis4/gcjbuild/../gcj/configure
--disable-bootstrap --disable-multilib --disable-libstdcxx
--disable-libquadmath --disable-libgomp --disable-libgfortran
--enable-languages=java : (reconfigured)
/home/zopolis4/gcjbuild/../gcj/configure --disable-bootstrap
--disable-multilib --disable-libstdcxx --disable-libquadmath
--disable-libgomp --disable-libgfortran --disable-libgm2
--enable-languages=java : (reconfigured)
/home/zopolis4/gcjbuild/../gcj/configure --disable-bootstrap
--disable-multilib --disable-libstdcxx --disable-libquadmath
--disable-libgomp --disable-libgfortran --disable-libgm2
LDFLAGS='-static-libstdc++ -static-libgcc
-L/usr/lib/gcc/x86_64-linux-gnu/12' --enable-languages=c,c++,java,lto
--no-create --no-recursion
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20221214 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-B'
'/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/' '-B'
'/home/zopolis4/gcjbuild/./gcc/' '-B'
'/usr/local/x86_64-pc-linux-gnu/bin/' '-B'
'/usr/local/x86_64-pc-linux-gnu/lib/' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/include' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/sys-include' '-fomit-frame-pointer'
'-U' 'sun' '-v' '-g' '-O2' '-o' '.libs/jv-convert' '-shared-libgcc'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava'
'-fbootclasspath=./:/usr/local/share/java/libgcj-13.0.0.jar'
'-specs=/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64' '-dumpdir'
'.libs/jv-convert-' //here is the big differentiation point
 /home/zopolis4/gcjbuild/./gcc/jvgenmain
.libs/jv-convert-gnu.gcj.convert.Convertmain /tmp/ccomuP4d.i
COLLECT_GCC_OPTIONS='-B'
'/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/' '-B'
'/home/zopolis4/gcjbuild/./gcc/' '-B'
'/usr/local/x86_64-pc-linux-gnu/bin/' '-B'
'/usr/local/x86_64-pc-linux-gnu/lib/' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/include' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/sys-include' '-fomit-frame-pointer'
'-U' 'sun' '-v' '-g' '-O2' '-o' '.libs/jv-convert' '-shared-libgcc'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava'
'-specs=/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64' '-dumpdir'
'.libs/jv-convert-'
 /home/zopolis4/gcjbuild/./gcc/cc1 /tmp/ccomuP4d.i -quiet
-mtune=generic -march=x86-64 -g -O2 -imultiarch x86_64-linux-gnu
-iprefix /home/zopolis4/gcjbuild/gcc/../lib/gcc/x86_64-pc-linux-gnu/13.0.0/
-isystem /home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/include
-isystem /home/zopolis4/gcjbuild/./gcc/include -isystem
/home/zopolis4/gcjbuild/./gcc/include-fixed/x86_64-linux-gnu -isystem
/home/zopolis4/gcjbuild/./gcc/include-fixed -version
-fomit-frame-pointer -fdollars-in-identifiers -o /tmp/ccG4mONV.s
GNU C17 (GCC) version 13.0.0 20221214 (experimental) (x86_64-pc-linux-gnu)
        compiled by GNU C version 12.2.0, GMP version 6.2.1, MPFR
version 4.1.0, MPC version 1.2.1, isl version isl-0.25-GMP

GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C17 (GCC) version 13.0.0 20221214 (experimental) (x86_64-pc-linux-gnu)
        compiled by GNU C version 12.2.0, GMP version 6.2.1, MPFR
version 4.1.0, MPC version 1.2.1, isl version isl-0.25-GMP

GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: f162c9d9cbdc4292aa66b1d49d6c1990
COLLECT_GCC_OPTIONS='-B'
'/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/' '-B'
'/home/zopolis4/gcjbuild/./gcc/' '-B'
'/usr/local/x86_64-pc-linux-gnu/bin/' '-B'
'/usr/local/x86_64-pc-linux-gnu/lib/' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/include' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/sys-include' '-fomit-frame-pointer'
'-U' 'sun' '-v' '-g' '-O2' '-o' '.libs/jv-convert' '-shared-libgcc'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava'
'-specs=/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64' '-dumpdir'
'.libs/jv-convert-'
 /home/zopolis4/gcjbuild/./gcc/as -v --gdwarf-5 --64 -o
/tmp/ccoyR03i.o /tmp/ccG4mONV.s
GNU assembler version 2.39.50 (x86_64-linux-gnu) using BFD version
(GNU Binutils for Debian) 2.39.50.20221208
COMPILER_PATH=/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/:/home/zopolis4/gcjbuild/./gcc/
LIBRARY_PATH=/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/:/home/zopolis4/gcjbuild/./gcc/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib64/:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-B'
'/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/' '-B'
'/home/zopolis4/gcjbuild/./gcc/' '-B'
'/usr/local/x86_64-pc-linux-gnu/bin/' '-B'
'/usr/local/x86_64-pc-linux-gnu/lib/' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/include' '-isystem'
'/usr/local/x86_64-pc-linux-gnu/sys-include' '-fomit-frame-pointer'
'-U' 'sun' '-v' '-g' '-O2' '-o' '.libs/jv-convert' '-shared-libgcc'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava'
'-specs=/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64' '-dumpdir'
'.libs/jv-convert.'
 /home/zopolis4/gcjbuild/./gcc/collect2 -plugin
/home/zopolis4/gcjbuild/./gcc/liblto_plugin.so
-plugin-opt=/home/zopolis4/gcjbuild/./gcc/lto-wrapper
-plugin-opt=-fresolution=/tmp/ccmsk44b.res
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc
-plugin-opt=-pass-through=-lgcj -plugin-opt=-pass-through=-lm
-plugin-opt=-pass-through=-lpthread -plugin-opt=-pass-through=-lrt
-plugin-opt=-pass-through=-ldl -plugin-opt=-pass-through=-lgcc_s
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc
--eh-frame-hdr -m elf_x86_64 -dynamic-linker
/lib64/ld-linux-x86-64.so.2 -o .libs/jv-convert
/lib/x86_64-linux-gnu/crt1.o /lib/x86_64-linux-gnu/crti.o
/home/zopolis4/gcjbuild/./gcc/crtbegin.o
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava/.libs
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava
-L/home/zopolis4/gcjbuild/x86_64-pc-linux-gnu/libjava
-L/home/zopolis4/gcjbuild/./gcc -L/lib/x86_64-linux-gnu
-L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib64
/tmp/ccoyR03i.o ./.libs/libgcj.so -lpthread -lrt -lltdl -lgc -rpath
/usr/local/lib/../lib64 -lgcc_s -lgcc -lgcj -lm -lpthread -lrt -ldl
-lgcc_s -lgcc -lc -lgcc_s -lgcc /home/zopolis4/gcjbuild/./gcc/crtend.o
/lib/x86_64-linux-gnu/crtn.o
/usr/bin/ld: /tmp/ccoyR03i.o: in function `main':
/tmp/ccomuP4d.i:12: undefined reference to
`libs__U2f_jv__U2d_convert__U2d_gnu::gcj::convert::Convert::class$'
collect2: error: ld returned 1 exit status


Before breakage:
ihateubuntu@CB10LOAN01L ~/s/x/libjava> /bin/bash ./libtool --tag=GCJ
--mode=link /home/ihateubuntu/shmubuntu/gcc/gcj
-B/home/ihateubuntu/shmubuntu/gcc/ -B/home/ihateubuntu
/shmubuntu/x86_64-pc-linux-gnu/libjava/
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava
-fomit-frame-pointer -Usun -g -v -O2  -o jv-convert
--main=gnu.gcj.convert
.Convert -rpath /usr/local/lib/../lib64 -shared-libgcc
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs
libgcj.la
libtool: link: /home/ihateubuntu/shmubuntu/gcc/gcj
-B/home/ihateubuntu/shmubuntu/gcc/
-B/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/
-fomit-frame-pointer -Usun -g -v -O2 -o .libs/jv-convert
--main=gnu.gcj.convert.Convert -shared-libgcc
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava
./.libs/libgcj.so -lpthread -lrt -lgc -Wl,-rpath
-Wl,/usr/local/lib/../lib64
Reading specs from /home/ihateubuntu/shmubuntu/gcc/specs
Reading specs from
/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/libgcj.spec
rename spec startfile to startfileorig
rename spec lib to liborig
COLLECT_GCC=/home/ihateubuntu/shmubuntu/gcc/gcj
COLLECT_LTO_WRAPPER=/home/ihateubuntu/shmubuntu/gcc/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcj-branches/configure --disable-bootstrap
--disable-multilib --disable-libstdcxx --disable-libquadmath
--disable-libgomp --disable-libgfortran --enable-languages=java
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20200526 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-B' '/home/ihateubuntu/shmubuntu/gcc/' '-B'
'/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/'
'-fomit-frame-pointer' '-U' 'sun' '-g' '-v' '-O2' '-o'
'.libs/jv-convert' '-shared-libgcc'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava'
'-fbootclasspath=./:/usr/local/share/java/libgcj-11.0.0.jar'
'-specs=/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /home/ihateubuntu/shmubuntu/gcc/jvgenmain gnu.gcj.convert.Convertmain
/tmp/ccSJFsbJ.i
COLLECT_GCC_OPTIONS='-B' '/home/ihateubuntu/shmubuntu/gcc/' '-B'
'/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/'
'-fomit-frame-pointer' '-U' 'sun' '-g' '-v' '-O2' '-o'
'.libs/jv-convert' '-shared-libgcc'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava'
'-specs=/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /home/ihateubuntu/shmubuntu/gcc/cc1 /tmp/ccSJFsbJ.i -quiet -dumpbase
gnu.gcj.convert.Convertmain.c -mtune=generic -march=x86-64 -g -O2
-imultiarch x86_64-linux-gnu -iprefix
/home/ihateubuntu/shmubuntu/gcc/../lib/gcc/x86_64-pc-linux-gnu/11.0.0/
-isystem /home/ihateubuntu/shmubuntu/gcc/include -isystem
/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/include
-isystem /home/ihateubuntu/shmubuntu/gcc/include-fixed -version
-fomit-frame-pointer -fdollars-in-identifiers -o /tmp/ccE1sfwm.s
GNU C17 (GCC) version 11.0.0 20200526 (experimental) (x86_64-pc-linux-gnu)
        compiled by GNU C version 7.5.0, GMP version 6.1.2, MPFR
version 4.0.1, MPC version 1.1.0, isl version none
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C17 (GCC) version 11.0.0 20200526 (experimental) (x86_64-pc-linux-gnu)
        compiled by GNU C version 7.5.0, GMP version 6.1.2, MPFR
version 4.0.1, MPC version 1.1.0, isl version none
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 60735a0af2909bb2b29ae4dbf7f62f9c
COLLECT_GCC_OPTIONS='-B' '/home/ihateubuntu/shmubuntu/gcc/' '-B'
'/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/'
'-fomit-frame-pointer' '-U' 'sun' '-g' '-v' '-O2' '-o'
'.libs/jv-convert' '-shared-libgcc'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava'
'-specs=/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /home/ihateubuntu/shmubuntu/gcc/as -v --64 -o /tmp/cc0GThTZ.o /tmp/ccE1sfwm.s
GNU assembler version 2.30 (x86_64-linux-gnu) using BFD version (GNU
Binutils for Ubuntu) 2.30
COMPILER_PATH=/home/ihateubuntu/shmubuntu/gcc/:/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/
LIBRARY_PATH=/home/ihateubuntu/shmubuntu/gcc/:/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-B' '/home/ihateubuntu/shmubuntu/gcc/' '-B'
'/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/'
'-fomit-frame-pointer' '-U' 'sun' '-g' '-v' '-O2' '-o'
'.libs/jv-convert' '-shared-libgcc'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava'
'-specs=/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64' //no spurious
dumpdir option
 /home/ihateubuntu/shmubuntu/gcc/collect2 -plugin
/home/ihateubuntu/shmubuntu/gcc/liblto_plugin.so
-plugin-opt=/home/ihateubuntu/shmubuntu/gcc/lto-wrapper
-plugin-opt=-fresolution=/tmp/ccvquphD.res
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc
-plugin-opt=-pass-through=-lgcj -plugin-opt=-pass-through=-lm
-plugin-opt=-pass-through=-lpthread -plugin-opt=-pass-through=-lrt
-plugin-opt=-pass-through=-ldl -plugin-opt=-pass-through=-lgcc_s
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc
--eh-frame-hdr -m elf_x86_64 -dynamic-linker
/lib64/ld-linux-x86-64.so.2 -o .libs/jv-convert
/usr/lib/x86_64-linux-gnu/crt1.o /usr/lib/x86_64-linux-gnu/crti.o
/home/ihateubuntu/shmubuntu/gcc/crtbegin.o
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava
-L/home/ihateubuntu/shmubuntu/gcc
-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava
-L/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu
/tmp/cc0GThTZ.o ./.libs/libgcj.so -lpthread -lrt -lgc -rpath
/usr/local/lib/../lib64 -lgcc_s -lgcc -lgcj -lm -lpthread -lrt -ldl
-lgcc_s -lgcc -lc -lgcc_s -lgcc
/home/ihateubuntu/shmubuntu/gcc/crtend.o
/usr/lib/x86_64-linux-gnu/crtn.o
COLLECT_GCC_OPTIONS='-B' '/home/ihateubuntu/shmubuntu/gcc/' '-B'
'/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/'
'-fomit-frame-pointer' '-U' 'sun' '-g' '-v' '-O2' '-o'
'.libs/jv-convert' '-shared-libgcc'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/.libs'
'-L/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava'
'-specs=/home/ihateubuntu/shmubuntu/x86_64-pc-linux-gnu/libjava/libgcj.spec'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'