gcc/libgcc
Michael Meissner 645bfc1619 Require GLIBC 2.32 for Decimal/_Float128 conversions.
In the patch that I applied on March 2nd, I had code to provide support for
Decimal/_Float128 conversions if the user did not use at least GLIBC 2.32.  It
did this by using __ibm128 as an intermediate type.  The trouble is __ibm128
cannot represent all of the numbers that _Float128 can, and you lose if you do
this conversion.

This patch removes this support.  The dfp-bit.c functions now call the the
__sprintfieee128 and __strtoieee128 functions to do the conversion.  If the
user does not have GLIBC, they will get a linker error that these functions do
not exist.

The float128 support functions are only built into the static libgcc, so there
isn't an issue with having references to __strtoieee128 and __sprintfieee128
with older GLIBC libraries.

As an added bonus, this patch eliminates the __sprintfkf function which
included stdio.h to get a definition for the sprintf library function.  This
allows for building cross compilers without having to have a target stdio.h
available.

libgcc/
2021-03-29  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/t-float128 (fp128_decstr_funcs): Delete.
	(fp128_ppc_funcs): Do not add $(fp128_decstr_funcs).
	(fp128_decstr_objs): Delete.
	* dfp-bit.h: Call __sprintfieee128 to do conversions from
	_Float128 to a Decimal type.  Call __strtoieee128 to do
	conversions from a Decimal type to _Float128.
	* config/rs6000/_sprintfkf.c: Delete file.
	* config/rs6000/_sprintfkf.h: Delete file.
	* config/rs6000/_strtokf.c: Delete file.
	* config/rs6000/_strtokf.h: Delete file.
2021-03-29 16:43:14 -04:00
..
config Require GLIBC 2.32 for Decimal/_Float128 conversions. 2021-03-29 16:43:14 -04:00
soft-fp soft-fp: Update soft-fp from glibc 2019-05-17 07:37:39 -07:00
ChangeLog Daily bump. 2021-03-24 00:16:25 +00:00
Makefile.in Update copyright years. 2021-01-04 10:26:59 +01:00
config.host Update copyright years. 2021-01-04 10:26:59 +01:00
config.in gcov: use mmap pools for KVP. 2021-03-03 14:21:45 +01:00
configure gcov: use mmap pools for KVP. 2021-03-03 14:21:45 +01:00
configure.ac gcov: use mmap pools for KVP. 2021-03-03 14:21:45 +01:00
crtstuff.c Update copyright years. 2021-01-04 10:26:59 +01:00
dfp-bit.c Fix a comment line that was too long. 2021-02-22 15:54:39 -05:00
dfp-bit.h Require GLIBC 2.32 for Decimal/_Float128 conversions. 2021-03-29 16:43:14 -04:00
divmod.c Update copyright years. 2021-01-04 10:26:59 +01:00
emutls.c Update copyright years. 2021-01-04 10:26:59 +01:00
enable-execute-stack-empty.c enable-execute-stack-empty.c (__enable_execute_stack): Add prototype. 2011-06-22 13:20:07 +02:00
enable-execute-stack-mprotect.c Update copyright years. 2021-01-04 10:26:59 +01:00
find-symver.awk Update copyright years. 2021-01-04 10:26:59 +01:00
fixed-bit.c Update copyright years. 2021-01-04 10:26:59 +01:00
fixed-bit.h Update copyright years. 2021-01-04 10:26:59 +01:00
fixed-obj.mk Makefile.in (fixed-funcs,fixed-conv-funcs): filter-out LIB2FUNCS_EXCLUDE before adding them to libgcc-objects, libgcc-s-objects. 2012-08-23 15:41:03 +00:00
floatunsidf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
floatunsisf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
floatunsitf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
floatunsixf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
fp-bit.c Update copyright years. 2021-01-04 10:26:59 +01:00
fp-bit.h Update copyright years. 2021-01-04 10:26:59 +01:00
gbl-ctors.h Update copyright years. 2021-01-04 10:26:59 +01:00
gcov.h Update copyright years. 2021-01-04 10:26:59 +01:00
gen-fixed.sh
generic-morestack-thread.c Update copyright years. 2021-01-04 10:26:59 +01:00
generic-morestack.c Update copyright years. 2021-01-04 10:26:59 +01:00
generic-morestack.h Update copyright years. 2021-01-04 10:26:59 +01:00
gstdint.h
gthr-posix.h Update copyright years. 2021-01-04 10:26:59 +01:00
gthr-single.h Update copyright years. 2021-01-04 10:26:59 +01:00
gthr.h Update copyright years. 2021-01-04 10:26:59 +01:00
libgcc-std.ver.in Update copyright years. 2021-01-04 10:26:59 +01:00
libgcc2.c libgcc: Avoid signed negation overflow in __powi?f2 [PR99236] 2021-02-24 20:07:38 +01:00
libgcc2.h Update copyright years. 2021-01-04 10:26:59 +01:00
libgcov-driver-system.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgcov-driver.c profiling: fix streaming of TOPN counters 2021-03-04 16:21:52 +01:00
libgcov-interface.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgcov-merge.c Restore profile reproducibility. 2021-01-25 13:30:34 +01:00
libgcov-profiler.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgcov-util.c Update copyright years. 2021-01-04 10:26:59 +01:00
libgcov.h libgcov: Fix build on Darwin [PR99406] 2021-03-06 16:22:27 +01:00
memcmp.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
memcpy.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
memmove.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
memset.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
mkheader.sh Update copyright years. 2021-01-04 10:26:59 +01:00
mkmap-flat.awk Update copyright years. 2021-01-04 10:26:59 +01:00
mkmap-symver.awk Update copyright years. 2021-01-04 10:26:59 +01:00
offloadstuff.c Update copyright years. 2021-01-04 10:26:59 +01:00
shared-object.mk Add the nvptx port. 2014-11-10 16:12:42 +00:00
siditi-object.mk Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
static-object.mk Add the nvptx port. 2014-11-10 16:12:42 +00:00
sync.c Update copyright years. 2021-01-04 10:26:59 +01:00
udivhi3.c Update copyright years. 2021-01-04 10:26:59 +01:00
udivmod.c Update copyright years. 2021-01-04 10:26:59 +01:00
udivmodhi4.c Update copyright years. 2021-01-04 10:26:59 +01:00
udivmodsi4.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-arm-common.inc Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-c.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-compat.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-compat.h Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-dw2-fde-compat.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-dw2-fde-dip.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-dw2-fde.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-dw2-fde.h Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-dw2.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-dw2.h Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-generic.h Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-pe.h Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-seh.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind-sjlj.c Update copyright years. 2021-01-04 10:26:59 +01:00
unwind.inc Update copyright years. 2021-01-04 10:26:59 +01:00
vtv_end.c Update copyright years. 2021-01-04 10:26:59 +01:00
vtv_end_preinit.c Update copyright years. 2021-01-04 10:26:59 +01:00
vtv_start.c Update copyright years. 2021-01-04 10:26:59 +01:00
vtv_start_preinit.c Update copyright years. 2021-01-04 10:26:59 +01:00