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Re: RFC patch: Add libquadmath - and use it in gfortran (round two)
- From: Jack Howarth <howarth at bromo dot med dot uc dot edu>
- To: gfortran <fortran at gcc dot gnu dot org>, gcc patches <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 8 Nov 2010 16:14:14 -0500
- Subject: Re: RFC patch: Add libquadmath - and use it in gfortran (round two)
- References: <4CD85E91.9000506@net-b.de>
On Mon, Nov 08, 2010 at 09:33:21PM +0100, Tobias Burnus wrote:
> Hi all,
>
> that's an updated version of my patch at
> http://gcc.gnu.org/ml/gcc-patches/2010-11/msg00653.html
> which is in turn based on FX's patch at
> http://gcc.gnu.org/ml/gcc-patches/2010-10/msg02388.html
>
> The patch contains:
>
> a) libquadmath(.tar.bz2): __float128 math library. It exports all math
> functions with the suffix "q" ("tanq", "jnq" etc.); it also exports two
> I/O related functions with the prefix quadmath_. The library is used
> from libgfortran but can also be used from C/C++. However, there is no
> printf hook thus doing I/O from C/C++ is a bit more effort. The library
> is automatically build if language=fortran is enabled, but on systems
> without __float128 it is a no op.
>
> b) quad.diff: The changes to the toplevel Makefile.def/configure.ac to
> build libquad with language=fortran; changes to gcc/fortran to use
> __float128; changes to libgfortran to use libquadmath.
> Libgfortran automatically links libquadmath if it is available; if
> -static-libgfortran is used, the (dynamically linked) libquadmath is
> surounded by --as-needed/--no-as-needed.
>
> c) quad_gen.diff: Due to popular request, the generated files.
>
> Changes to previous patch:
>
> - Fixed several issues regarding configure. I hope that it now builds on
> Darwin and creates a DLL under Cygwin/MinGW(.org/64)*
> - It does no longer use weakrefs for the math functions
> - It uses a weakref for I/O (write_float etc.), but
> - There is now a transfer_{complex,real}{,write}128 function, whose only
> purpose is to drag in the libquadmath I/O function.
>
> (* I got some feedback from Kai that with a stupid configure fix it now
> should work on Cygwin.)
This still fails on x86_64-apple-darwin10. The linkage...
libtool: compile: /Users/howarth/work/./gcc/gfortran -B/Users/howarth/work/./gcc/ -B/Users/howarth/dist/x86_64-apple-darwin10.5.0/bin/ -B/Users/howarth/dist/x86_64-apple-darwin10.5.0/lib/ -isystem /Users/howarth/dist/x86_64-apple-darwin10.5.0/include -isystem /Users/howarth/dist/x86_64-apple-darwin10.5.0/sys-include -m32 -DHAVE_CONFIG_H -I. -I../../../../gcc-4.6-20101108/libgfortran -iquote../../../../gcc-4.6-20101108/libgfortran/io -I../../../../gcc-4.6-20101108/libgfortran/../gcc -I../../../../gcc-4.6-20101108/libgfortran/../gcc/config -I../../.././gcc -D_GNU_SOURCE -I . -Wall -Werror -fimplicit-none -fno-repack-arrays -fno-underscoring -fallow-leading-underscore -g -O2 -m32 -c ../../../../gcc-4.6-20101108/libgfortran/intrinsics/f2c_specifics.F90 >/dev/null 2>&1
/bin/sh ./libtool --tag=CC --mode=link /Users/howarth/work/./gcc/xgcc -B/Users/howarth/work/./gcc/ -B/Users/howarth/dist/x86_64-apple-darwin10.5.0/bin/ -B/Users/howarth/dist/x86_64-apple-darwin10.5.0/lib/ -isystem /Users/howarth/dist/x86_64-apple-darwin10.5.0/include -isystem /Users/howarth/dist/x86_64-apple-darwin10.5.0/sys-include -std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wextra -Wwrite-strings -fcx-fortran-rules -ffunction-sections -fdata-sections -g -O2 -m32 -m32 -o libgfortran.la -version-info `grep -v '^#' ../../../../gcc-4.6-20101108/libgfortran/libtool-version` '-m32' -no-undefined -bindir "/Users/howarth/dist/bin" -L../../../../gcc-4.6-20101108/libgfortran/../libquadmath LIBQUADLIB -lm -Wl,-single_module -rpath /Users/howarth/dist/lib/i386 backtrace.lo bounds.lo compile_options.lo convert_char.lo environ.lo error.lo fpu.lo main.lo memory.lo pause.lo stop.lo string.lo select.lo all_l1.lo all_l2.lo all_l4.lo all_l8.lo all_l16.lo any_l1.lo 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libtool: link: /Users/howarth/work/./gcc/xgcc -B/Users/howarth/work/./gcc/ -B/Users/howarth/dist/x86_64-apple-darwin10.5.0/bin/ -B/Users/howarth/dist/x86_64-apple-darwin10.5.0/lib/ -isystem /Users/howarth/dist/x86_64-apple-darwin10.5.0/include -isystem /Users/howarth/dist/x86_64-apple-darwin10.5.0/sys-include -m32 -dynamiclib -o .libs/libgfortran.3.dylib .libs/backtrace.o .libs/bounds.o .libs/compile_options.o .libs/convert_char.o .libs/environ.o .libs/error.o .libs/fpu.o .libs/main.o .libs/memory.o .libs/pause.o .libs/stop.o .libs/string.o .libs/select.o .libs/all_l1.o .libs/all_l2.o .libs/all_l4.o .libs/all_l8.o .libs/all_l16.o .libs/any_l1.o .libs/any_l2.o .libs/any_l4.o .libs/any_l8.o .libs/any_l16.o .libs/count_1_l.o .libs/count_2_l.o .libs/count_4_l.o .libs/count_8_l.o .libs/count_16_l.o .libs/maxloc0_4_i1.o .libs/maxloc0_8_i1.o .libs/maxloc0_16_i1.o .libs/maxloc0_4_i2.o .libs/maxloc0_8_i2.o .libs/maxloc0_16_i2.o .libs/maxloc0_4_i4.o .libs/maxloc0_8_i4.o .libs/maxloc0_16_i4.o 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.libs/_tanh_r4.o .libs/_tanh_r8.o .libs/_tanh_r10.o .libs/_tanh_r16.o .libs/_conjg_c4.o .libs/_conjg_c8.o .libs/_conjg_c10.o .libs/_conjg_c16.o .libs/_aint_r4.o .libs/_aint_r8.o .libs/_aint_r10.o .libs/_aint_r16.o .libs/_anint_r4.o .libs/_anint_r8.o .libs/_anint_r10.o .libs/_anint_r16.o .libs/_sign_i4.o .libs/_sign_i8.o .libs/_sign_i16.o .libs/_sign_r4.o .libs/_sign_r8.o .libs/_sign_r10.o .libs/_sign_r16.o .libs/_dim_i4.o .libs/_dim_i8.o .libs/_dim_i16.o .libs/_dim_r4.o .libs/_dim_r8.o .libs/_dim_r10.o .libs/_dim_r16.o .libs/_atan2_r4.o .libs/_atan2_r8.o .libs/_atan2_r10.o .libs/_atan2_r16.o .libs/_mod_i4.o .libs/_mod_i8.o .libs/_mod_i16.o .libs/_mod_r4.o .libs/_mod_r8.o .libs/_mod_r10.o .libs/_mod_r16.o .libs/misc_specifics.o .libs/dprod_r8.o .libs/f2c_specifics.o -L/Users/howarth/gcc-4.6-20101108/libquadmath -lm -m32 -m32 -m32 -Wl,-single_module -install_name /Users/howarth/dist/lib/i386/libgfortran.3.dylib -compatibility_version 4 -current_version 4.0 -Wl,-single_module
Undefined symbols:
"_tanhq", referenced from:
__gfortran_specific__tanh_r16 in _tanh_r16.o
"_clogq", referenced from:
__gfortran_specific__log_c16 in _log_c16.o
...is still passing...
-L/Users/howarth/gcc-4.6-20101108/libquadmath
which should be...
-L/Users/howarth/work/x86_64-apple-darwin10.5.0/i386/libquadmath/.libs
for the i386 multilib build and
-L/Users/howarth/work/x86_64-apple-darwin10.5.0/libquadmath/.libs
for the -m64 multilib build. We need to figure out what construction
of variables will provide those properly in each case during the mulilib
build of libgfortran.
Jack
>
> Comments?
>
> Tobias
>
> $ diffstat quad.diff
> b/Makefile.def | 3 +
> b/configure.ac | 1
> b/gcc/fortran/gfortranspec.c | 38 +++++++++++++++++++
> b/gcc/fortran/trans-io.c | 49
> +++++++++++++++++++++++--
> b/gcc/fortran/trans-types.c | 8 +++-
> b/libgfortran/Makefile.am | 6 ++-
> b/libgfortran/acinclude.m4 | 51
> ++++++++++++++++++++++++++
> b/libgfortran/configure.ac | 13 +++++-
> b/libgfortran/gfortran.map | 5 ++
> b/libgfortran/intrinsics/cshift0.c | 28 +++++++++++---
> b/libgfortran/intrinsics/erfc_scaled_inc.c | 11 +++++
> b/libgfortran/intrinsics/pack_generic.c | 28 +++++++++++---
> b/libgfortran/intrinsics/spread_generic.c | 56
> ++++++++++++++++++++++-------
> b/libgfortran/intrinsics/unpack_generic.c | 56
> ++++++++++++++++++++++-------
> b/libgfortran/io/read.c | 8 +++-
> b/libgfortran/io/transfer.c | 56
> ++++++++++++++++++++++++++++-
> b/libgfortran/io/write.c | 1
> b/libgfortran/io/write_float.def | 11 +++++
> b/libgfortran/libgfortran.h | 18 ++++++++-
> b/libgfortran/m4/mtype.m4 | 2 -
> b/libgfortran/mk-kinds-h.sh | 39 +++++++++++++-------
> b/libgfortran/runtime/in_pack_generic.c | 29 +++++++++++----
> b/libgfortran/runtime/in_unpack_generic.c | 31 ++++++++++++----
> gcc/libgfortran/kinds-override.h | 46 +++++++++++++++++++++++
> gcc/libgfortran/libgfortran.spec.in | 8 ++++
> 25 files changed, 524 insertions(+), 78 deletions(-)
>
> $ diffstat quad-gen.diff
> b/Makefile.in | 467 +
> b/configure | 1
> b/libgfortran/Makefile.in | 74
> b/libgfortran/config.h.in | 3
> b/libgfortran/configure | 139
> gcc/libgfortran/generated/pow_r16_i4.c | 75
> gcc/libquadmath/Makefile.in | 1219 +++
> gcc/libquadmath/aclocal.m4 | 979 ++
> gcc/libquadmath/config.h.in | 68
> gcc/libquadmath/configure |13288
> +++++++++++++++++++++++++++++++++
> 10 files changed, 16289 insertions(+), 24 deletions(-)
>