fortran, libgfortran: -mabi=ieeelongdouble I/O

The following patch adds the compiler and library side of -mabi=ieeelongdouble
I/O support.

2022-01-04  Jakub Jelinek  <jakub@redhat.com>

gcc/fortran/
	* trans-io.c (transfer_namelist_element): Use gfc_type_abi_kind,
	formatting fixes.
	(transfer_expr): Use gfc_type_abi_kind, use *REAL128* APIs even
	for abi_kind == 17.
libgfortran/
	* libgfortran.h (__acoshieee128, __acosieee128, __asinhieee128,
	__asinieee128, __atan2ieee128, __atanhieee128, __atanieee128,
	__coshieee128, __cosieee128, __erfieee128, __expieee128,
	__fabsieee128, __jnieee128, __log10ieee128, __logieee128,
	__powieee128, __sinhieee128, __sinieee128, __sqrtieee128,
	__tanhieee128, __tanieee128, __ynieee128): Formatting fixes.
	(__strtoieee128, __snprintfieee128): Declare.
	* io/io.h (default_width_for_float, default_precision_for_float):
	Handle kind == 17.
	* io/size_from_kind.c (size_from_real_kind, size_from_complex_kind):
	Likewise.
	* io/read.c (set_integer, si_max, convert_real, convert_infnan,
	read_f): Likewise.
	* io/write.c (extract_uint, size_from_kind, set_fnode_default):
	Likewise.
	* io/write_float.def (DTOA2Q, FDTOA2Q): Define for HAVE_GFC_REAL_17.
	(determine_en_precision, get_float_string): Handle kind == 17.
	* io/transfer128.c: Use also for HAVE_GFC_REAL_17, but don't drag in
	libquadmath if POWER_IEEE128.
	* Makefile.am (comma, PREPROCESS): New variables.
	(gfortran.ver): New goal.
	(version_arg, version_dep): Use gfortran.ver instead of
	$(srcdir)/gfortran.map.
	(gfortran.map-sun): Depend on and use gfortran.ver instead of
	$(srcdir)/gfortran.map.
	(BUILT_SOURCES): Add $(version_dep).
	* Makefile.in: Regenerated.
	* gfortran.map (GFORTRAN_8): Don't export
	_gfortran_transfer_complex128, _gfortran_transfer_complex128_write,
	_gfortran_transfer_real128 and _gfortran_transfer_real128_write if
	HAVE_GFC_REAL_17 is defined.
	(GFORTRAN_12): Export those here instead.

1 files changed, 15 insertions, 7 deletions

diff --git a/libgfortran/Makefile.in b/libgfortran/Makefile.in
index 1bfb07dda6c..da0ad684d21 100644
--- a/libgfortran/Makefile.in
+++ b/libgfortran/Makefile.in
@@ -738,12 +738,16 @@ top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 ACLOCAL_AMFLAGS = -I .. -I ../config
 gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
+
+# -Wc is only a libtool option.
+@LIBGFOR_USE_SYMVER_TRUE@comma = ,
+@LIBGFOR_USE_SYMVER_TRUE@PREPROCESS = $(subst -Wc$(comma), , $(COMPILE)) -E
 @LIBGFOR_USE_SYMVER_FALSE@version_arg = 
-@LIBGFOR_USE_SYMVER_GNU_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_arg = -Wl,--version-script=$(srcdir)/gfortran.map
-@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_arg = -Wl,-M,gfortran.map-sun
+@LIBGFOR_USE_SYMVER_GNU_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_arg = -Wl,--version-script=gfortran.ver
+@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_arg = -Wl,-M,gfortran.ver-sun
 @LIBGFOR_USE_SYMVER_FALSE@version_dep = 
-@LIBGFOR_USE_SYMVER_GNU_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_dep = $(srcdir)/gfortran.map
-@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_dep = gfortran.map-sun
+@LIBGFOR_USE_SYMVER_GNU_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_dep = gfortran.ver
+@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@version_dep = gfortran.ver-sun gfortran.ver
 gfor_c_HEADERS = ISO_Fortran_binding.h
 gfor_cdir = $(libdir)/gcc/$(target_alias)/$(gcc_version)/include
 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS)) \
@@ -1648,7 +1652,7 @@ intrinsics/random_init.f90
 
 BUILT_SOURCES = $(gfor_built_src) $(gfor_built_specific_src) \
 	$(gfor_built_specific2_src) $(gfor_misc_specifics) \
-	$(am__append_7)
+	$(version_dep) $(am__append_7)
 prereq_SRC = $(gfor_src) $(gfor_built_src) $(gfor_io_src) \
 	$(gfor_helper_src) $(gfor_ieee_src) $(gfor_io_headers) $(gfor_specific_src)
 
@@ -7607,11 +7611,15 @@ uninstall-am: uninstall-cafexeclibLTLIBRARIES uninstall-gfor_cHEADERS \
 
 .PRECIOUS: Makefile
 
-@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@gfortran.map-sun : $(srcdir)/gfortran.map \
+
+@LIBGFOR_USE_SYMVER_TRUE@gfortran.ver: $(srcdir)/gfortran.map kinds.inc
+@LIBGFOR_USE_SYMVER_TRUE@	$(EGREP) -v '#(#| |$$)' $< | \
+@LIBGFOR_USE_SYMVER_TRUE@	  $(PREPROCESS) -P -include config.h -include kinds.inc - > $@ || (rm -f $@ ; exit 1)
+@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@gfortran.map-sun : gfortran.ver \
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@		$(top_srcdir)/../contrib/make_sunver.pl \
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@		$(libgfortran_la_OBJECTS) $(libgfortran_la_LIBADD)
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	perl $(top_srcdir)/../contrib/make_sunver.pl \
-@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	  $(srcdir)/gfortran.map \
+@LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	  gfortran.ver \
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	  $(libgfortran_la_OBJECTS:%.lo=.libs/%.o) \
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	 `echo $(libgfortran_la_LIBADD) | \
 @LIBGFOR_USE_SYMVER_SUN_TRUE@@LIBGFOR_USE_SYMVER_TRUE@	    sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \