[Bug libffi/26048] New: libffi doesn't build on Solaris 10/x86 with native assembler

[gcc-bugzilla at gcc dot gnu dot org]

When trying to bootstrap mainline on Solaris 10/x86 with the native
assembler, building libffi fails:

/vol/gcc/obj/gcc-4.2.0-20060126/10-gcc/./gcc/xgcc
-B/vol/gcc/obj/gcc-4.2.0-20060126/10-gcc/./gcc/
-B/vol/gcc/share/i386-pc-solaris2.10/bin/
-B/vol/gcc/share/i386-pc-solaris2.10/lib/ -isystem
/vol/gcc/share/i386-pc-solaris2.10/include -isystem
/vol/gcc/share/i386-pc-solaris2.10/sys-include -I.
-I/vol/gcc/src/gcc-dist/libffi/include -Iinclude
-I/vol/gcc/src/gcc-dist/libffi/src -O2 -g -O2 -c
/vol/gcc/src/gcc-dist/libffi/src/x86/sysv.S  -fPIC -DPIC -o
src/x86/.libs/sysv.o
Assembler: 
        "/var/tmp//ccQLHd1V.s", line 138 : Syntax error
        "/var/tmp//ccQLHd1V.s", line 138 : Illegal character: <7e>
        "/var/tmp//ccQLHd1V.s", line 139 : Syntax error
        "/var/tmp//ccQLHd1V.s", line 139 : Illegal character: <7e>
        "/var/tmp//ccQLHd1V.s", line 146 : Syntax error
        "/var/tmp//ccQLHd1V.s", line 146 : Illegal character: <7e>
        "/var/tmp//ccQLHd1V.s", line 204 : Warning: Illegal subtraction -
symbols from different sections: ".LFB1", ".DOT-3"
        "/var/tmp//ccQLHd1V.s", line 223 : Warning: Illegal subtraction -
symbols from different sections: ".LFB2", ".DOT-4"
        "/var/tmp//ccQLHd1V.s", line 246 : Warning: Illegal subtraction -
symbols from different sections: ".LFB3", ".DOT-5"
make[4]: *** [src/x86/sysv.lo] Error 1

The code in question (from running the command above with -save-temps) is

ffi_closure_raw_SYSV:
[...]
 movl ((10 + 3) & ~3)(%eax), %esi               line 138
 movl ((((10 + 3) & ~3) + 4) + 4)(%eax), %edx   line 139
[...]
 call *(((10 + 3) & ~3) + 4)(%eax)              line 146

 .long .LEFDE1-.LASFDE1
.LASFDE1:
 .long .LASFDE1-.Lframe1
 .long .LFB1-.                                  line 204

I had already noticed this on 20051006, but hadn't reported it yet since
the Solaris 10/x86 native as doesn't work due to still unfixed PR
target/23359.

The first part of the problem might perhaps be worked around by manual
calculations as in src/mips/ffitarget.h, but I don't know a good solution
for the second problem.

The bug was introduced by this patch:

2005-08-11  Jakub Jelinek  <jakub@redhat.com>

        * configure.ac (HAVE_HIDDEN_VISIBILITY_ATTRIBUTE): New test.
        (AH_BOTTOM): Add FFI_HIDDEN definition.
        * configure: Rebuilt.
        * fficonfig.h.in: Rebuilt.
        * src/powerpc/ffi.c (hidden): Remove.
        (ffi_closure_LINUX64, ffi_prep_args64, ffi_call_LINUX64,
        ffi_closure_helper_LINUX64): Use FFI_HIDDEN instead of hidden.
        * src/powerpc/linux64_closure.S (ffi_closure_LINUX64,
        .ffi_closure_LINUX64): Use FFI_HIDDEN instead of .hidden.
        * src/x86/ffi.c (ffi_closure_SYSV, ffi_closure_raw_SYSV): Remove,
        add FFI_HIDDEN to its prototype.
        (ffi_closure_SYSV_inner): New.
        * src/x86/sysv.S (ffi_closure_SYSV, ffi_closure_raw_SYSV): New.


This is a regression from at least 3.4 where it was possible to bootstrap
on Solaris 10/x86 with the native assembler.  I don't know for sure about
4.0, though.

Environment:
System: SunOS erebus 5.10 Generic_Patch i86pc i386 i86pc
Architecture: i86pc


host: i386-pc-solaris2.10
build: i386-pc-solaris2.10
target: i386-pc-solaris2.10
configured with: /vol/gcc/src/gcc-dist/configure --prefix=/vol/gcc
--with-local-prefix=/vol/gcc --disable-nls --disable-multilib
--with-gmp-dir=/vol/gnu/obj/gmp-4.1.3
--with-mpfr-dir=/vol/gnu/obj/gmp-4.1.3/mpfr
--enable-languages=c,c++,fortran,java,objc,ada --disable-libmudflap

How-To-Repeat:
Bootstrap mainline as described above.


-- 
           Summary: libffi doesn't build on Solaris 10/x86 with native
                    assembler
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libffi
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
 GCC build triplet: i386-pc-solaris2.10
  GCC host triplet: i386-pc-solaris2.10
GCC target triplet: i386-pc-solaris2.10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26048