[Bug java/35367] New: Linux x86 build (with --enable-targets=all, so also building with cross-to-x64 multilib configuration) fails in libjava (prims.cc)

["tim dot vanholder at anubex dot com" <gcc-bugzilla@gcc.gnu.org>]

configured by ../../../src/gcc/configure, generated by GNU Autoconf 2.59,
  with options " '-v' '--prefix=/opt/experimental' '--enable-shared'
'--with-system-zlib' '--enable-threads=posix' '--enable-nls'
'--enable-clocale=gnu' '--enable-libstdcxx-debug' '--enable-libffi'
'--enable-objc-gc' '--enable-mpfr' '--enable-targets=all'
'--enable-checking=release'
'--enable-languages=c,ada,c++,fortran,java,objc,obj-c++,treelang'"

system: Debian linux (lenny/sid; building gcc myself because I'm stuck with
kernel 2.4 so am unable to install newer debian packages)

libtool: compile:  /home/tim/gnu/build/linux/gcc/./gcc/xgcc -shared-libgcc
-B/home/tim/gnu/build/linux/gcc/./gcc -nostdinc++
-L/home/tim/gnu/build/linux/gcc/i686-pc-linux-gnu/64/libstdc++-v3/src
-L/home/tim/gnu/build/linux/gcc/i686-pc-linux-gnu/64/libstdc++-v3/src/.libs
-B/opt/experimental/i686-pc-linux-gnu/bin/
-B/opt/experimental/i686-pc-linux-gnu/lib/ -isystem
/opt/experimental/i686-pc-linux-gnu/include -isystem
/opt/experimental/i686-pc-linux-gnu/sys-include -m64 -DHAVE_CONFIG_H -I.
-I../../../../../../src/gcc/libjava -I./include -I./gcj
-I../../../../../../src/gcc/libjava -Iinclude
-I../../../../../../src/gcc/libjava/include
-I../../../../../../src/gcc/libjava/classpath/include -Iclasspath/include
-I../../../../../../src/gcc/libjava/classpath/native/fdlibm
-I../../../../../../src/gcc/libjava/../boehm-gc/include -I../boehm-gc/include
-I../../../../../../src/gcc/libjava/libltdl
-I../../../../../../src/gcc/libjava/libltdl
-I../../../../../../src/gcc/libjava/.././libjava/../gcc
-I../../../../../../src/gcc/libjava/../zlib
-I../../../../../../src/gcc/libjava/../libffi/include -I../libffi/include
-fno-rtti -fnon-call-exceptions -fdollars-in-identifiers -Wswitch-enum
-D_FILE_OFFSET_BITS=64 -ffloat-store -fomit-frame-pointer -Usun -Wextra -Wall
-D_GNU_SOURCE -DPREFIX=\"/opt/experimental\"
-DTOOLEXECLIBDIR=\"/opt/experimental/lib/../lib64\"
-DJAVA_HOME=\"/opt/experimental\"
-DBOOT_CLASS_PATH=\"/opt/experimental/share/java/libgcj-4.3.0.jar\"
-DJAVA_EXT_DIRS=\"/opt/experimental/share/java/ext\"
-DGCJ_ENDORSED_DIRS=\"/opt/experimental/share/java/gcj-endorsed\"
-DGCJ_VERSIONED_LIBDIR=\"/opt/experimental/lib/../lib64/gcj-4.3.0-9\"
-DPATH_SEPARATOR=\":\" -DECJ_JAR_FILE=\"\"
-DLIBGCJ_DEFAULT_DATABASE=\"/opt/experimental/lib/../lib64/gcj-4.3.0-9/classmap.db\"
-DLIBGCJ_DEFAULT_DATABASE_PATH_TAIL=\"gcj-4.3.0/classmap.db\" -g -O2
-D_GNU_SOURCE -m64 -MT prims.lo -MD -MP -MF .deps/prims.Tpo -c
../../../../../../src/gcc/libjava/prims.cc  -fPIC -DPIC -o .libs/prims.o
../../../../../../src/gcc/libjava/prims.cc: In function 'void
_Jv_catch_fpe(int, siginfo_t*, void*)':
../../../../../../src/gcc/libjava/prims.cc:193: error: cast from 'unsigned
char*' to 'greg_t' loses precision

This seems to be a bug in the configury, as java-signal.h is linked to
i386-signal.h instead of x86_64-signal.h in i686-pc-linux-gnu/64/libjava.
Adjusting that link is not enough to make the build succeed (it still gives the
same error, with additional errors about REG_RIP/RAX/RDX not being declared).


-- 
           Summary: Linux x86 build (with --enable-targets=all, so also
                    building with cross-to-x64 multilib configuration) fails
                    in libjava (prims.cc)
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tim dot vanholder at anubex dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35367