[PATCH 0/3] Add fenv.h generic infrastructure and default implementations

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* [PATCH 0/3] Add fenv.h generic infrastructure and default implementations
@ 2019-07-31 23:14 Joel Sherrill
  2019-07-31 23:14 ` [PATCH 1/3] Miscellaneous Makefile.in regenerated Joel Sherrill
                   ` (2 more replies)
  0 siblings, 3 replies; 8+ messages in thread
From: Joel Sherrill @ 2019-07-31 23:14 UTC (permalink / raw)
  To: newlib; +Cc: Joel Sherrill

This patch series adds generic infrastructure for fenv.h methods.
The file libc/include/fenv.h is the RISC-V one with no modifications.
The template/default libc/include/sys/fenv.h is derived from
the RISC-V but is just an arbitrary defintion of the required values.
I assumed the RISC-V implementation was correct per POSIX given
the high quality comments.

The first patch is to pick up some files which got regenerated
using the script Jeff emailed me. Not sure about those but I
included them. Note: When bootstrapping, don't forget I added
libm/fenv/Makefile.am.

Second patch is the core of the work.

Third patch is regenerated output from the files I touched.

I did test builds on sparc-rtems5 and riscv-rtems5. The sparc
got default versions of fenv methods and the riscv got its own.

When merged and the RISC-V folks are happy, I think their 
specific implementation of fenv.h can be removed.

The SPU implementation has incorrect signatures. I have no
idea about that and no SPU experience.

Interested to hear comments.

Thanks.

--joel


Joel Sherrill (3):
  Miscellaneous Makefile.in regenerated
  Add default implementation of fenv.h and all methods
  Regenerated files from fenv.h addition

 newlib/libc/include/fenv.h              |  42 +++
 newlib/libc/include/sys/fenv.h          |  47 +++
 newlib/libc/machine/msp430/Makefile.in  |   1 -
 newlib/libc/machine/riscv/Makefile.in   |  21 +-
 newlib/libc/search/Makefile.in          |  50 +--
 newlib/libm/Makefile.am                 |   6 +-
 newlib/libm/Makefile.in                 |  12 +-
 newlib/libm/configure                   |   3 +-
 newlib/libm/configure.in                |   2 +-
 newlib/libm/fenv/Makefile.am            |  36 ++
 newlib/libm/fenv/Makefile.in            | 628 ++++++++++++++++++++++++++++++++
 newlib/libm/fenv/fe_dfl_env.c           |  32 ++
 newlib/libm/fenv/feclearexcept.c        |  35 ++
 newlib/libm/fenv/fegetenv.c             |  35 ++
 newlib/libm/fenv/fegetexceptflag.c      |  36 ++
 newlib/libm/fenv/fegetround.c           |  36 ++
 newlib/libm/fenv/feholdexcept.c         |  36 ++
 newlib/libm/fenv/feraiseexcept.c        |  36 ++
 newlib/libm/fenv/fesetenv.c             |  36 ++
 newlib/libm/fenv/fesetexceptflag.c      |  36 ++
 newlib/libm/fenv/fesetround.c           |  36 ++
 newlib/libm/fenv/fetestexcept.c         |  36 ++
 newlib/libm/fenv/feupdateenv.c          |  36 ++
 newlib/libm/machine/aarch64/Makefile.in |   7 +-
 24 files changed, 1224 insertions(+), 57 deletions(-)
 create mode 100644 newlib/libc/include/fenv.h
 create mode 100644 newlib/libc/include/sys/fenv.h
 create mode 100644 newlib/libm/fenv/Makefile.am
 create mode 100644 newlib/libm/fenv/Makefile.in
 create mode 100644 newlib/libm/fenv/fe_dfl_env.c
 create mode 100644 newlib/libm/fenv/feclearexcept.c
 create mode 100644 newlib/libm/fenv/fegetenv.c
 create mode 100644 newlib/libm/fenv/fegetexceptflag.c
 create mode 100644 newlib/libm/fenv/fegetround.c
 create mode 100644 newlib/libm/fenv/feholdexcept.c
 create mode 100644 newlib/libm/fenv/feraiseexcept.c
 create mode 100644 newlib/libm/fenv/fesetenv.c
 create mode 100644 newlib/libm/fenv/fesetexceptflag.c
 create mode 100644 newlib/libm/fenv/fesetround.c
 create mode 100644 newlib/libm/fenv/fetestexcept.c
 create mode 100644 newlib/libm/fenv/feupdateenv.c

-- 
1.8.3.1

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH 1/3] Miscellaneous Makefile.in regenerated
  2019-07-31 23:14 [PATCH 0/3] Add fenv.h generic infrastructure and default implementations Joel Sherrill
@ 2019-07-31 23:14 ` Joel Sherrill
  2019-08-01  8:17   ` Richard Earnshaw (lists)
  2019-07-31 23:14 ` [PATCH 3/3] Regenerated files from fenv.h addition Joel Sherrill
  2019-07-31 23:14 ` [PATCH 2/3] Add default implementation of fenv.h and all methods Joel Sherrill
  2 siblings, 1 reply; 8+ messages in thread
From: Joel Sherrill @ 2019-07-31 23:14 UTC (permalink / raw)
  To: newlib; +Cc: Joel Sherrill

---
 newlib/libc/machine/msp430/Makefile.in  |  1 -
 newlib/libc/machine/riscv/Makefile.in   | 21 +++++++-------
 newlib/libc/search/Makefile.in          | 50 ++++++++++++---------------------
 newlib/libm/machine/aarch64/Makefile.in |  7 +++--
 4 files changed, 33 insertions(+), 46 deletions(-)

diff --git a/newlib/libc/machine/msp430/Makefile.in b/newlib/libc/machine/msp430/Makefile.in
index 6f837c9..efbdf7c 100644
--- a/newlib/libc/machine/msp430/Makefile.in
+++ b/newlib/libc/machine/msp430/Makefile.in
@@ -198,7 +198,6 @@ pdfdir = @pdfdir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
diff --git a/newlib/libc/machine/riscv/Makefile.in b/newlib/libc/machine/riscv/Makefile.in
index 304dd35..e6dee87 100644
--- a/newlib/libc/machine/riscv/Makefile.in
+++ b/newlib/libc/machine/riscv/Makefile.in
@@ -69,9 +69,9 @@ LIBRARIES = $(noinst_LIBRARIES)
 ARFLAGS = cru
 lib_a_AR = $(AR) $(ARFLAGS)
 lib_a_LIBADD =
-am_lib_a_OBJECTS = lib_a-memset.$(OBJEXT) lib_a-memcpy.$(OBJEXT) \
-	lib_a-memcpy-asm.$(OBJEXT) \
-	lib_a-memmove.$(OBJEXT) lib_a-memmove-stub.$(OBJEXT) \
+am_lib_a_OBJECTS = lib_a-memmove.$(OBJEXT) \
+	lib_a-memmove-stub.$(OBJEXT) lib_a-memset.$(OBJEXT) \
+	lib_a-memcpy-asm.$(OBJEXT) lib_a-memcpy.$(OBJEXT) \
 	lib_a-strlen.$(OBJEXT) lib_a-strcpy.$(OBJEXT) \
 	lib_a-strcmp.$(OBJEXT) lib_a-setjmp.$(OBJEXT) \
 	lib_a-ieeefp.$(OBJEXT) lib_a-ffs.$(OBJEXT)
@@ -200,8 +200,9 @@ AUTOMAKE_OPTIONS = cygnus
 INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 AM_CCASFLAGS = $(INCLUDES)
 noinst_LIBRARIES = lib.a
-lib_a_SOURCES = memcpy-asm.S memmove.S memmove-stub.c memset.S memcpy.c strlen.c \
+lib_a_SOURCES = memmove.S memmove-stub.c memset.S memcpy-asm.S memcpy.c strlen.c \
 	strcpy.c strcmp.S setjmp.S ieeefp.c ffs.c
+
 lib_a_CCASFLAGS = $(AM_CCASFLAGS)
 lib_a_CFLAGS = $(AM_CFLAGS)
 ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
@@ -270,18 +271,18 @@ lib_a-memmove.o: memmove.S
 lib_a-memmove.obj: memmove.S
 	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memmove.obj `if test -f 'memmove.S'; then $(CYGPATH_W) 'memmove.S'; else $(CYGPATH_W) '$(srcdir)/memmove.S'; fi`
 
-lib_a-memcpy-asm.o: memcpy-asm.S
-	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memcpy-asm.o `test -f 'memcpy-asm.S' || echo '$(srcdir)/'`memcpy-asm.S
-
-lib_a-memcpy-asm.obj: memcpy-asm.S
-	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memcpy-asm.obj `if test -f 'memcpy-asm.S'; then $(CYGPATH_W) 'memcpy-asm.S'; else $(CYGPATH_W) '$(srcdir)/memcpy-asm.S'; fi`
-
 lib_a-memset.o: memset.S
 	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memset.o `test -f 'memset.S' || echo '$(srcdir)/'`memset.S
 
 lib_a-memset.obj: memset.S
 	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memset.obj `if test -f 'memset.S'; then $(CYGPATH_W) 'memset.S'; else $(CYGPATH_W) '$(srcdir)/memset.S'; fi`
 
+lib_a-memcpy-asm.o: memcpy-asm.S
+	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memcpy-asm.o `test -f 'memcpy-asm.S' || echo '$(srcdir)/'`memcpy-asm.S
+
+lib_a-memcpy-asm.obj: memcpy-asm.S
+	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memcpy-asm.obj `if test -f 'memcpy-asm.S'; then $(CYGPATH_W) 'memcpy-asm.S'; else $(CYGPATH_W) '$(srcdir)/memcpy-asm.S'; fi`
+
 lib_a-strcmp.o: strcmp.S
 	$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strcmp.o `test -f 'strcmp.S' || echo '$(srcdir)/'`strcmp.S
 
diff --git a/newlib/libc/search/Makefile.in b/newlib/libc/search/Makefile.in
index 8077a5f..4330472 100644
--- a/newlib/libc/search/Makefile.in
+++ b/newlib/libc/search/Makefile.in
@@ -1,8 +1,9 @@
-# Makefile.in generated by automake 1.12.2 from Makefile.am.
+# Makefile.in generated by automake 1.11.6 from Makefile.am.
 # @configure_input@
 
-# Copyright (C) 1994-2012 Free Software Foundation, Inc.
-
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+# Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -53,11 +54,15 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 DIST_COMMON = $(srcdir)/../../Makefile.shared $(srcdir)/Makefile.in \
-	$(srcdir)/Makefile.am $(top_srcdir)/../../mkinstalldirs
+	$(srcdir)/Makefile.am
 subdir = search
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/../acinclude.m4 \
-	$(top_srcdir)/configure.in
+am__aclocal_m4_deps = $(top_srcdir)/../../libtool.m4 \
+	$(top_srcdir)/../../ltoptions.m4 \
+	$(top_srcdir)/../../ltsugar.m4 \
+	$(top_srcdir)/../../ltversion.m4 \
+	$(top_srcdir)/../../lt~obsolete.m4 \
+	$(top_srcdir)/../acinclude.m4 $(top_srcdir)/configure.in
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(SHELL) $(top_srcdir)/../../mkinstalldirs
@@ -182,10 +187,8 @@ LIBTOOL = @LIBTOOL@
 LIPO = @LIPO@
 LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
-LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
 MAINT = @MAINT@
 MAKEINFO = @MAKEINFO@
-MANIFEST_TOOL = @MANIFEST_TOOL@
 MKDIR_P = @MKDIR_P@
 NEWLIB_CFLAGS = @NEWLIB_CFLAGS@
 NM = @NM@
@@ -214,7 +217,6 @@ abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@
-ac_ct_AR = @ac_ct_AR@
 ac_ct_CC = @ac_ct_CC@
 ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
 aext = @aext@
@@ -374,14 +376,12 @@ lib.a: $(lib_a_OBJECTS) $(lib_a_DEPENDENCIES) $(EXTRA_lib_a_DEPENDENCIES)
 
 clean-noinstLTLIBRARIES:
 	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
-	@list='$(noinst_LTLIBRARIES)'; \
-	locs=`for p in $$list; do echo $$p; done | \
-	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
-	      sort -u`; \
-	test -z "$$locs" || { \
-	  echo rm -f $${locs}; \
-	  rm -f $${locs}; \
-	}
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
 libsearch.la: $(libsearch_la_OBJECTS) $(libsearch_la_DEPENDENCIES) $(EXTRA_libsearch_la_DEPENDENCIES) 
 	$(libsearch_la_LINK) $(am_libsearch_la_rpath) $(libsearch_la_OBJECTS) $(libsearch_la_LIBADD) $(LIBS)
 
@@ -563,20 +563,6 @@ GTAGS:
 	  && $(am__cd) $(top_srcdir) \
 	  && gtags -i $(GTAGS_ARGS) "$$here"
 
-cscopelist:  $(HEADERS) $(SOURCES) $(LISP)
-	list='$(SOURCES) $(HEADERS) $(LISP)'; \
-	case "$(srcdir)" in \
-	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
-	  *) sdir=$(subdir)/$(srcdir) ;; \
-	esac; \
-	for i in $$list; do \
-	  if test -f "$$i"; then \
-	    echo "$(subdir)/$$i"; \
-	  else \
-	    echo "$$sdir/$$i"; \
-	  fi; \
-	done >> $(top_builddir)/cscope.files
-
 distclean-tags:
 	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 check-am:
@@ -687,7 +673,7 @@ uninstall-am:
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
 	clean-libtool clean-noinstLIBRARIES clean-noinstLTLIBRARIES \
-	cscopelist ctags distclean distclean-compile distclean-generic \
+	ctags distclean distclean-compile distclean-generic \
 	distclean-libtool distclean-tags dvi dvi-am html html-am info \
 	info-am install install-am install-data install-data-am \
 	install-dvi install-dvi-am install-exec install-exec-am \
diff --git a/newlib/libm/machine/aarch64/Makefile.in b/newlib/libm/machine/aarch64/Makefile.in
index d31237e..ac85b3f 100644
--- a/newlib/libm/machine/aarch64/Makefile.in
+++ b/newlib/libm/machine/aarch64/Makefile.in
@@ -52,9 +52,10 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
-DIST_COMMON = $(srcdir)/../../../Makefile.shared $(srcdir)/Makefile.in \
-	$(srcdir)/Makefile.am $(top_srcdir)/configure \
-	$(am__configure_deps) $(srcdir)/../../../../mkinstalldirs
+DIST_COMMON = $(srcdir)/../../../Makefile.shared INSTALL \
+	$(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/configure $(am__configure_deps) \
+	$(srcdir)/../../../../mkinstalldirs
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../../../acinclude.m4 \
-- 
1.8.3.1

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 1/3] Miscellaneous Makefile.in regenerated
  2019-07-31 23:14 ` [PATCH 1/3] Miscellaneous Makefile.in regenerated Joel Sherrill
@ 2019-08-01  8:17   ` Richard Earnshaw (lists)
  0 siblings, 0 replies; 8+ messages in thread
From: Richard Earnshaw (lists) @ 2019-08-01  8:17 UTC (permalink / raw)
  To: Joel Sherrill, newlib



On 01/08/2019 00:13, Joel Sherrill wrote:
> ---
>   newlib/libc/machine/msp430/Makefile.in  |  1 -
>   newlib/libc/machine/riscv/Makefile.in   | 21 +++++++-------
>   newlib/libc/search/Makefile.in          | 50 ++++++++++++---------------------
>   newlib/libm/machine/aarch64/Makefile.in |  7 +++--
>   4 files changed, 33 insertions(+), 46 deletions(-)

[...]

> diff --git a/newlib/libm/machine/aarch64/Makefile.in b/newlib/libm/machine/aarch64/Makefile.in
> index d31237e..ac85b3f 100644
> --- a/newlib/libm/machine/aarch64/Makefile.in
> +++ b/newlib/libm/machine/aarch64/Makefile.in
> @@ -52,9 +52,10 @@ PRE_UNINSTALL = :
>   POST_UNINSTALL = :
>   build_triplet = @build@
>   host_triplet = @host@
> -DIST_COMMON = $(srcdir)/../../../Makefile.shared $(srcdir)/Makefile.in \
> -	$(srcdir)/Makefile.am $(top_srcdir)/configure \
> -	$(am__configure_deps) $(srcdir)/../../../../mkinstalldirs
> +DIST_COMMON = $(srcdir)/../../../Makefile.shared INSTALL \

I don't follow why INSTALL has been added to a list of files.  There 
certainly isn't a file called INSTALL in that directory.

> +	$(srcdir)/Makefile.in $(srcdir)/Makefile.am \
> +	$(top_srcdir)/configure $(am__configure_deps) \
> +	$(srcdir)/../../../../mkinstalldirs
>   subdir = .
>   ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
>   am__aclocal_m4_deps = $(top_srcdir)/../../../acinclude.m4 \
> 

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH 3/3] Regenerated files from fenv.h addition
  2019-07-31 23:14 [PATCH 0/3] Add fenv.h generic infrastructure and default implementations Joel Sherrill
  2019-07-31 23:14 ` [PATCH 1/3] Miscellaneous Makefile.in regenerated Joel Sherrill
@ 2019-07-31 23:14 ` Joel Sherrill
  2019-07-31 23:14 ` [PATCH 2/3] Add default implementation of fenv.h and all methods Joel Sherrill
  2 siblings, 0 replies; 8+ messages in thread
From: Joel Sherrill @ 2019-07-31 23:14 UTC (permalink / raw)
  To: newlib; +Cc: Joel Sherrill

---
 newlib/libm/Makefile.in      |  12 +-
 newlib/libm/configure        |   3 +-
 newlib/libm/fenv/Makefile.in | 628 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 636 insertions(+), 7 deletions(-)
 create mode 100644 newlib/libm/fenv/Makefile.in

diff --git a/newlib/libm/Makefile.in b/newlib/libm/Makefile.in
index 59a53b5..64e4994 100644
--- a/newlib/libm/Makefile.in
+++ b/newlib/libm/Makefile.in
@@ -80,12 +80,12 @@ LTLIBRARIES = $(noinst_LTLIBRARIES)
 am__DEPENDENCIES_1 =
 @USE_LIBTOOL_FALSE@am__DEPENDENCIES_2 = $(MATHDIR)/lib.$(aext) \
 @USE_LIBTOOL_FALSE@	common/lib.$(aext) complex/lib.$(aext) \
-@USE_LIBTOOL_FALSE@	$(am__DEPENDENCIES_1)
+@USE_LIBTOOL_FALSE@	fenv/lib.$(aext) $(am__DEPENDENCIES_1)
 @USE_LIBTOOL_TRUE@am__DEPENDENCIES_2 =  \
 @USE_LIBTOOL_TRUE@	$(MATHDIR)/lib$(MATHDIR).$(aext) \
 @USE_LIBTOOL_TRUE@	common/libcommon.$(aext) \
 @USE_LIBTOOL_TRUE@	complex/libcomplex.$(aext) \
-@USE_LIBTOOL_TRUE@	$(am__DEPENDENCIES_1)
+@USE_LIBTOOL_TRUE@	fenv/libfenv.$(aext) $(am__DEPENDENCIES_1)
 @USE_LIBTOOL_TRUE@libm_la_DEPENDENCIES = $(am__DEPENDENCIES_2)
 am_libm_la_OBJECTS =
 libm_la_OBJECTS = $(am_libm_la_OBJECTS)
@@ -168,7 +168,7 @@ AM_RECURSIVE_TARGETS = $(RECURSIVE_TARGETS:-recursive=) \
 	$(RECURSIVE_CLEAN_TARGETS:-recursive=) tags TAGS ctags CTAGS
 ETAGS = etags
 CTAGS = ctags
-DIST_SUBDIRS = math mathfp common complex machine
+DIST_SUBDIRS = math mathfp common complex fenv machine
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
 AR = @AR@
@@ -299,10 +299,10 @@ top_srcdir = @top_srcdir@
 AUTOMAKE_OPTIONS = cygnus
 @NEWLIB_HW_FP_FALSE@MATHDIR = math
 @NEWLIB_HW_FP_TRUE@MATHDIR = mathfp
-SUBDIRS = $(MATHDIR) common complex machine 
+SUBDIRS = $(MATHDIR) common complex fenv machine 
 libm_la_LDFLAGS = -Xcompiler -nostdlib
-@USE_LIBTOOL_FALSE@SUBLIBS = $(MATHDIR)/lib.$(aext) common/lib.$(aext) complex/lib.$(aext) $(LIBM_MACHINE_LIB)
-@USE_LIBTOOL_TRUE@SUBLIBS = $(MATHDIR)/lib$(MATHDIR).$(aext) common/libcommon.$(aext) complex/libcomplex.$(aext)  $(LIBM_MACHINE_LIB)
+@USE_LIBTOOL_FALSE@SUBLIBS = $(MATHDIR)/lib.$(aext) common/lib.$(aext) complex/lib.$(aext) fenv/lib.$(aext) $(LIBM_MACHINE_LIB)
+@USE_LIBTOOL_TRUE@SUBLIBS = $(MATHDIR)/lib$(MATHDIR).$(aext) common/libcommon.$(aext) complex/libcomplex.$(aext) fenv/libfenv.$(aext) $(LIBM_MACHINE_LIB)
 @USE_LIBTOOL_TRUE@noinst_LTLIBRARIES = libm.la
 @USE_LIBTOOL_TRUE@libm_la_SOURCES = 
 @USE_LIBTOOL_TRUE@libm_la_LIBADD = $(SUBLIBS)
diff --git a/newlib/libm/configure b/newlib/libm/configure
index e8a0a99..309a668 100755
--- a/newlib/libm/configure
+++ b/newlib/libm/configure
@@ -11868,7 +11868,7 @@ fi
 
 
 
-ac_config_files="$ac_config_files Makefile math/Makefile mathfp/Makefile common/Makefile complex/Makefile"
+ac_config_files="$ac_config_files Makefile math/Makefile mathfp/Makefile common/Makefile complex/Makefile fenv/Makefile"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -12930,6 +12930,7 @@ do
     "mathfp/Makefile") CONFIG_FILES="$CONFIG_FILES mathfp/Makefile" ;;
     "common/Makefile") CONFIG_FILES="$CONFIG_FILES common/Makefile" ;;
     "complex/Makefile") CONFIG_FILES="$CONFIG_FILES complex/Makefile" ;;
+    "fenv/Makefile") CONFIG_FILES="$CONFIG_FILES fenv/Makefile" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
diff --git a/newlib/libm/fenv/Makefile.in b/newlib/libm/fenv/Makefile.in
new file mode 100644
index 0000000..b9a2db9
--- /dev/null
+++ b/newlib/libm/fenv/Makefile.in
@@ -0,0 +1,628 @@
+# Makefile.in generated by automake 1.11.6 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+# Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+
+
+VPATH = @srcdir@
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+  { \
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+      *\\[\ \	]*) \
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+          case $$am__flg in \
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+am__can_run_installinfo = \
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+INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
+src = feclearexcept.c fe_dfl_env.c fegetenv.c fegetexceptflag.c \
+	fegetround.c feholdexcept.c feraiseexcept.c fesetenv.c \
+	fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c
+
+libcommon_la_LDFLAGS = -Xcompiler -nostdlib
+lib_a_CFLAGS = -fbuiltin -fno-math-errno $(am__append_1)
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+@USE_LIBTOOL_TRUE@libcommon_la_SOURCES = $(src)
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+@USE_LIBTOOL_FALSE@noinst_LIBRARIES = lib.a
+@USE_LIBTOOL_FALSE@lib_a_SOURCES = $(src)
+
+#
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+	fegetexceptflag.def fegetround.def feholdexcept.def \
+	feraiseexcept.def fesetenv.def fesetexceptflag.def fesetround.def \
+	fetestexcept.def feupdateenv.def
+
+CHAPTERS = 
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --cygnus fenv/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --cygnus fenv/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+clean-noinstLIBRARIES:
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+lib.a: $(lib_a_OBJECTS) $(lib_a_DEPENDENCIES) $(EXTRA_lib_a_DEPENDENCIES) 
+	-rm -f lib.a
+	$(lib_a_AR) lib.a $(lib_a_OBJECTS) $(lib_a_LIBADD)
+	$(RANLIB) lib.a
+
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libcommon.la: $(libcommon_la_OBJECTS) $(libcommon_la_DEPENDENCIES) $(EXTRA_libcommon_la_DEPENDENCIES) 
+	$(libcommon_la_LINK) $(am_libcommon_la_rpath) $(libcommon_la_OBJECTS) $(libcommon_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+.c.o:
+	$(COMPILE) -c $<
+
+.c.obj:
+	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.c.lo:
+	$(LTCOMPILE) -c -o $@ $<
+
+lib_a-feclearexcept.o: feclearexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feclearexcept.o `test -f 'feclearexcept.c' || echo '$(srcdir)/'`feclearexcept.c
+
+lib_a-feclearexcept.obj: feclearexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feclearexcept.obj `if test -f 'feclearexcept.c'; then $(CYGPATH_W) 'feclearexcept.c'; else $(CYGPATH_W) '$(srcdir)/feclearexcept.c'; fi`
+
+lib_a-fe_dfl_env.o: fe_dfl_env.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fe_dfl_env.o `test -f 'fe_dfl_env.c' || echo '$(srcdir)/'`fe_dfl_env.c
+
+lib_a-fe_dfl_env.obj: fe_dfl_env.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fe_dfl_env.obj `if test -f 'fe_dfl_env.c'; then $(CYGPATH_W) 'fe_dfl_env.c'; else $(CYGPATH_W) '$(srcdir)/fe_dfl_env.c'; fi`
+
+lib_a-fegetenv.o: fegetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetenv.o `test -f 'fegetenv.c' || echo '$(srcdir)/'`fegetenv.c
+
+lib_a-fegetenv.obj: fegetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetenv.obj `if test -f 'fegetenv.c'; then $(CYGPATH_W) 'fegetenv.c'; else $(CYGPATH_W) '$(srcdir)/fegetenv.c'; fi`
+
+lib_a-fegetexceptflag.o: fegetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetexceptflag.o `test -f 'fegetexceptflag.c' || echo '$(srcdir)/'`fegetexceptflag.c
+
+lib_a-fegetexceptflag.obj: fegetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetexceptflag.obj `if test -f 'fegetexceptflag.c'; then $(CYGPATH_W) 'fegetexceptflag.c'; else $(CYGPATH_W) '$(srcdir)/fegetexceptflag.c'; fi`
+
+lib_a-fegetround.o: fegetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetround.o `test -f 'fegetround.c' || echo '$(srcdir)/'`fegetround.c
+
+lib_a-fegetround.obj: fegetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetround.obj `if test -f 'fegetround.c'; then $(CYGPATH_W) 'fegetround.c'; else $(CYGPATH_W) '$(srcdir)/fegetround.c'; fi`
+
+lib_a-feholdexcept.o: feholdexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feholdexcept.o `test -f 'feholdexcept.c' || echo '$(srcdir)/'`feholdexcept.c
+
+lib_a-feholdexcept.obj: feholdexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feholdexcept.obj `if test -f 'feholdexcept.c'; then $(CYGPATH_W) 'feholdexcept.c'; else $(CYGPATH_W) '$(srcdir)/feholdexcept.c'; fi`
+
+lib_a-feraiseexcept.o: feraiseexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feraiseexcept.o `test -f 'feraiseexcept.c' || echo '$(srcdir)/'`feraiseexcept.c
+
+lib_a-feraiseexcept.obj: feraiseexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feraiseexcept.obj `if test -f 'feraiseexcept.c'; then $(CYGPATH_W) 'feraiseexcept.c'; else $(CYGPATH_W) '$(srcdir)/feraiseexcept.c'; fi`
+
+lib_a-fesetenv.o: fesetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetenv.o `test -f 'fesetenv.c' || echo '$(srcdir)/'`fesetenv.c
+
+lib_a-fesetenv.obj: fesetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetenv.obj `if test -f 'fesetenv.c'; then $(CYGPATH_W) 'fesetenv.c'; else $(CYGPATH_W) '$(srcdir)/fesetenv.c'; fi`
+
+lib_a-fesetexceptflag.o: fesetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetexceptflag.o `test -f 'fesetexceptflag.c' || echo '$(srcdir)/'`fesetexceptflag.c
+
+lib_a-fesetexceptflag.obj: fesetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetexceptflag.obj `if test -f 'fesetexceptflag.c'; then $(CYGPATH_W) 'fesetexceptflag.c'; else $(CYGPATH_W) '$(srcdir)/fesetexceptflag.c'; fi`
+
+lib_a-fesetround.o: fesetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetround.o `test -f 'fesetround.c' || echo '$(srcdir)/'`fesetround.c
+
+lib_a-fesetround.obj: fesetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetround.obj `if test -f 'fesetround.c'; then $(CYGPATH_W) 'fesetround.c'; else $(CYGPATH_W) '$(srcdir)/fesetround.c'; fi`
+
+lib_a-fetestexcept.o: fetestexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fetestexcept.o `test -f 'fetestexcept.c' || echo '$(srcdir)/'`fetestexcept.c
+
+lib_a-fetestexcept.obj: fetestexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fetestexcept.obj `if test -f 'fetestexcept.c'; then $(CYGPATH_W) 'fetestexcept.c'; else $(CYGPATH_W) '$(srcdir)/fetestexcept.c'; fi`
+
+lib_a-feupdateenv.o: feupdateenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.o `test -f 'feupdateenv.c' || echo '$(srcdir)/'`feupdateenv.c
+
+lib_a-feupdateenv.obj: feupdateenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.obj `if test -f 'feupdateenv.c'; then $(CYGPATH_W) 'feupdateenv.c'; else $(CYGPATH_W) '$(srcdir)/feupdateenv.c'; fi`
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	set x; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+check-am:
+check: check-am
+all-am: Makefile $(LIBRARIES) $(LTLIBRARIES) $(DATA)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	clean-noinstLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES clean-noinstLTLIBRARIES \
+	ctags distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags dvi dvi-am html html-am info \
+	info-am install install-am install-data install-data-am \
+	install-dvi install-dvi-am install-exec install-exec-am \
+	install-html install-html-am install-info install-info-am \
+	install-man install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags uninstall \
+	uninstall-am
+
+objectlist.awk.in: $(noinst_LTLIBRARIES)
+	-rm -f objectlist.awk.in
+	for i in `ls *.lo` ; \
+	do \
+	  echo $$i `pwd`/$$i >> objectlist.awk.in ; \
+	done
+
+.c.def:
+	$(CHEW) < $< > $*.def || ( rm $*.def && false )
+	@touch stmp-def
+
+TARGETDOC ?= ../tmp.texi
+
+doc: $(CHEWOUT_FILES)
+	for chapter in $(CHAPTERS) ; \
+	do \
+	  cat $(srcdir)/$$chapter >> $(TARGETDOC) ; \
+	done
+
+.c.xml:
+	$(DOCBOOK_CHEW) < $< > $*.xml || ( rm $*.xml && false )
+	@touch stmp-xml
+
+docbook: $(DOCBOOK_OUT_FILES)
+	for chapter in $(DOCBOOK_CHAPTERS) ; \
+	do \
+	  ${top_srcdir}/../doc/chapter-texi2docbook.py <$(srcdir)/$${chapter%.xml}.tex >../$$chapter ; \
+	done
+
+# A partial dependency list.
+
+$(lib_a_OBJECTS): $(srcdir)/../../libc/include/fenv.h
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
-- 
1.8.3.1

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH 2/3] Add default implementation of fenv.h and all methods
  2019-07-31 23:14 [PATCH 0/3] Add fenv.h generic infrastructure and default implementations Joel Sherrill
  2019-07-31 23:14 ` [PATCH 1/3] Miscellaneous Makefile.in regenerated Joel Sherrill
  2019-07-31 23:14 ` [PATCH 3/3] Regenerated files from fenv.h addition Joel Sherrill
@ 2019-07-31 23:14 ` Joel Sherrill
  2019-07-31 23:58   ` Howland, Craig D. - US via newlib
  2 siblings, 1 reply; 8+ messages in thread
From: Joel Sherrill @ 2019-07-31 23:14 UTC (permalink / raw)
  To: newlib; +Cc: Joel Sherrill

	The default implementation of the fenv.h methods return
	-EOPNOTSUPP.

	The intention of the new fenv.h is that it be portable
	and that architectures provide their own implementation
	of sys/fenv.h.
---
 newlib/libc/include/fenv.h         | 42 ++++++++++++++++++++++++++++++++++
 newlib/libc/include/sys/fenv.h     | 47 ++++++++++++++++++++++++++++++++++++++
 newlib/libm/Makefile.am            |  6 ++---
 newlib/libm/configure.in           |  2 +-
 newlib/libm/fenv/Makefile.am       | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/fe_dfl_env.c      | 32 ++++++++++++++++++++++++++
 newlib/libm/fenv/feclearexcept.c   | 35 ++++++++++++++++++++++++++++
 newlib/libm/fenv/fegetenv.c        | 35 ++++++++++++++++++++++++++++
 newlib/libm/fenv/fegetexceptflag.c | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/fegetround.c      | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/feholdexcept.c    | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/feraiseexcept.c   | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/fesetenv.c        | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/fesetexceptflag.c | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/fesetround.c      | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/fetestexcept.c    | 36 +++++++++++++++++++++++++++++
 newlib/libm/fenv/feupdateenv.c     | 36 +++++++++++++++++++++++++++++
 17 files changed, 555 insertions(+), 4 deletions(-)
 create mode 100644 newlib/libc/include/fenv.h
 create mode 100644 newlib/libc/include/sys/fenv.h
 create mode 100644 newlib/libm/fenv/Makefile.am
 create mode 100644 newlib/libm/fenv/fe_dfl_env.c
 create mode 100644 newlib/libm/fenv/feclearexcept.c
 create mode 100644 newlib/libm/fenv/fegetenv.c
 create mode 100644 newlib/libm/fenv/fegetexceptflag.c
 create mode 100644 newlib/libm/fenv/fegetround.c
 create mode 100644 newlib/libm/fenv/feholdexcept.c
 create mode 100644 newlib/libm/fenv/feraiseexcept.c
 create mode 100644 newlib/libm/fenv/fesetenv.c
 create mode 100644 newlib/libm/fenv/fesetexceptflag.c
 create mode 100644 newlib/libm/fenv/fesetround.c
 create mode 100644 newlib/libm/fenv/fetestexcept.c
 create mode 100644 newlib/libm/fenv/feupdateenv.c

diff --git a/newlib/libc/include/fenv.h b/newlib/libc/include/fenv.h
new file mode 100644
index 0000000..4795cc9
--- /dev/null
+++ b/newlib/libc/include/fenv.h
@@ -0,0 +1,42 @@
+/* Copyright (c) 2017  SiFive Inc. All rights reserved.
+
+   This copyrighted material is made available to anyone wishing to use,
+   modify, copy, or redistribute it subject to the terms and conditions
+   of the FreeBSD License.   This program is distributed in the hope that
+   it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
+   including the implied warranties of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  A copy of this license is available at
+   http://www.opensource.org/licenses.
+*/
+
+#ifndef _FENV_H
+#define _FENV_H
+
+#include <sys/fenv.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Exception */
+int feclearexcept(int excepts);
+int fegetexceptflag(fexcept_t *flagp, int excepts);
+int feraiseexcept(int excepts);
+int fesetexceptflag(const fexcept_t *flagp, int excepts);
+int fetestexcept(int excepts);
+
+/* Rounding mode */
+int fegetround(void);
+int fesetround(int rounding_mode);
+
+/* Float environment */
+int fegetenv(fenv_t *envp);
+int feholdexcept(fenv_t *envp);
+int fesetenv(const fenv_t *envp);
+int feupdateenv(const fenv_t *envp);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/newlib/libc/include/sys/fenv.h b/newlib/libc/include/sys/fenv.h
new file mode 100644
index 0000000..8edae90
--- /dev/null
+++ b/newlib/libc/include/sys/fenv.h
@@ -0,0 +1,47 @@
+/* Copyright (c) 2017  SiFive Inc. All rights reserved.
+
+   This copyrighted material is made available to anyone wishing to use,
+   modify, copy, or redistribute it subject to the terms and conditions
+   of the FreeBSD License.   This program is distributed in the hope that
+   it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
+   including the implied warranties of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  A copy of this license is available at
+   http://www.opensource.org/licenses.
+*/
+
+/*
+ * A unique target specific version of this file should be implemented
+ * for each architecture supporting the fenv.h methods.
+ *
+ * Note: This version is not intended to be functional on any architecture
+ *       and just provides a template to start from when porting.
+ */
+
+
+#ifndef _SYS_FENV_H
+#define _SYS_FENV_H
+
+#include <stddef.h>
+
+#define FE_INVALID   0x00000010
+#define FE_DIVBYZERO 0x00000008
+#define FE_OVERFLOW  0x00000004
+#define FE_UNDERFLOW 0x00000002
+#define FE_INEXACT   0x00000001
+
+#define FE_ALL_EXCEPT (FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT)
+
+#define FE_TONEAREST_MM 0x00000004
+#define FE_UPWARD     	0x00000003
+#define FE_DOWNWARD   	0x00000002
+#define FE_TOWARDZERO 	0x00000001
+#define FE_TONEAREST  	0x00000000
+
+#define FE_RMODE_MASK   0x7
+
+typedef size_t fenv_t;
+typedef size_t fexcept_t;
+extern const fenv_t fe_dfl_env;
+#define FE_DFL_ENV fe_dfl_env_p
+
+#endif /* _FENV_H_ */
diff --git a/newlib/libm/Makefile.am b/newlib/libm/Makefile.am
index 8bc2c2c..fb752f7 100644
--- a/newlib/libm/Makefile.am
+++ b/newlib/libm/Makefile.am
@@ -8,17 +8,17 @@ else
 MATHDIR = math
 endif
 
-SUBDIRS = $(MATHDIR) common complex machine 
+SUBDIRS = $(MATHDIR) common complex fenv machine 
 
 libm_la_LDFLAGS = -Xcompiler -nostdlib
 
 if USE_LIBTOOL
-SUBLIBS = $(MATHDIR)/lib$(MATHDIR).$(aext) common/libcommon.$(aext) complex/libcomplex.$(aext)  $(LIBM_MACHINE_LIB)
+SUBLIBS = $(MATHDIR)/lib$(MATHDIR).$(aext) common/libcommon.$(aext) complex/libcomplex.$(aext) fenv/libfenv.$(aext) $(LIBM_MACHINE_LIB)
 noinst_LTLIBRARIES = libm.la
 libm_la_SOURCES =
 libm_la_LIBADD = $(SUBLIBS)
 else
-SUBLIBS = $(MATHDIR)/lib.$(aext) common/lib.$(aext) complex/lib.$(aext) $(LIBM_MACHINE_LIB)
+SUBLIBS = $(MATHDIR)/lib.$(aext) common/lib.$(aext) complex/lib.$(aext) fenv/lib.$(aext) $(LIBM_MACHINE_LIB)
 noinst_LIBRARIES = libm.a
 libm.a: $(SUBLIBS)
 	rm -f $@
diff --git a/newlib/libm/configure.in b/newlib/libm/configure.in
index 9bd107c..aec22bd 100644
--- a/newlib/libm/configure.in
+++ b/newlib/libm/configure.in
@@ -62,5 +62,5 @@ fi
 
 AC_SUBST(LIBM_MACHINE_LIB)
 
-AC_CONFIG_FILES([Makefile math/Makefile mathfp/Makefile common/Makefile complex/Makefile])
+AC_CONFIG_FILES([Makefile math/Makefile mathfp/Makefile common/Makefile complex/Makefile fenv/Makefile])
 AC_OUTPUT
diff --git a/newlib/libm/fenv/Makefile.am b/newlib/libm/fenv/Makefile.am
new file mode 100644
index 0000000..fef5c36
--- /dev/null
+++ b/newlib/libm/fenv/Makefile.am
@@ -0,0 +1,36 @@
+## Process this file with automake to generate Makefile.in
+
+AUTOMAKE_OPTIONS = cygnus
+
+INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
+
+src =	feclearexcept.c fe_dfl_env.c fegetenv.c fegetexceptflag.c \
+	fegetround.c feholdexcept.c feraiseexcept.c fesetenv.c \
+	fesetexceptflag.c fesetround.c fetestexcept.c feupdateenv.c
+
+libcommon_la_LDFLAGS = -Xcompiler -nostdlib
+lib_a_CFLAGS = -fbuiltin -fno-math-errno
+
+if USE_LIBTOOL
+noinst_LTLIBRARIES = libcommon.la
+libcommon_la_SOURCES = $(src)
+noinst_DATA = objectlist.awk.in
+else
+noinst_LIBRARIES = lib.a
+lib_a_SOURCES = $(src)
+lib_a_CFLAGS += $(AM_CFLAGS)
+noinst_DATA =
+endif # USE_LIBTOOL
+
+include $(srcdir)/../../Makefile.shared
+
+CHEWOUT_FILES =	feclearexcept.def fe_dfl_env.def fegetenv.def \
+	fegetexceptflag.def fegetround.def feholdexcept.def \
+	feraiseexcept.def fesetenv.def fesetexceptflag.def fesetround.def \
+	fetestexcept.def feupdateenv.def
+
+CHAPTERS =
+
+# A partial dependency list.
+
+$(lib_a_OBJECTS): $(srcdir)/../../libc/include/fenv.h
diff --git a/newlib/libm/fenv/fe_dfl_env.c b/newlib/libm/fenv/fe_dfl_env.c
new file mode 100644
index 0000000..5db1b83
--- /dev/null
+++ b/newlib/libm/fenv/fe_dfl_env.c
@@ -0,0 +1,32 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+
+const fenv_t fe_dfl_env = { 0 };
+const fenv_t *fe_dfl_env_p = &fe_dfl_env;
diff --git a/newlib/libm/fenv/feclearexcept.c b/newlib/libm/fenv/feclearexcept.c
new file mode 100644
index 0000000..31d5001
--- /dev/null
+++ b/newlib/libm/fenv/feclearexcept.c
@@ -0,0 +1,35 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int feclearexcept(int excepts)
+{
+  return -EOPNOTSUPP;
+}
diff --git a/newlib/libm/fenv/fegetenv.c b/newlib/libm/fenv/fegetenv.c
new file mode 100644
index 0000000..0d34f41
--- /dev/null
+++ b/newlib/libm/fenv/fegetenv.c
@@ -0,0 +1,35 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fegetenv(fenv_t *envp)
+{
+  return -EOPNOTSUPP;
+}
diff --git a/newlib/libm/fenv/fegetexceptflag.c b/newlib/libm/fenv/fegetexceptflag.c
new file mode 100644
index 0000000..cb4eaf8
--- /dev/null
+++ b/newlib/libm/fenv/fegetexceptflag.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fegetexceptflag(fexcept_t *flagp, int excepts)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/fegetround.c b/newlib/libm/fenv/fegetround.c
new file mode 100644
index 0000000..ceda28d
--- /dev/null
+++ b/newlib/libm/fenv/fegetround.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fegetround(void)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/feholdexcept.c b/newlib/libm/fenv/feholdexcept.c
new file mode 100644
index 0000000..f570003
--- /dev/null
+++ b/newlib/libm/fenv/feholdexcept.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int feholdexcept(fenv_t *envp)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/feraiseexcept.c b/newlib/libm/fenv/feraiseexcept.c
new file mode 100644
index 0000000..27104bd
--- /dev/null
+++ b/newlib/libm/fenv/feraiseexcept.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int feraiseexcept(int excepts)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/fesetenv.c b/newlib/libm/fenv/fesetenv.c
new file mode 100644
index 0000000..30232bc
--- /dev/null
+++ b/newlib/libm/fenv/fesetenv.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fesetenv(const fenv_t *envp)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/fesetexceptflag.c b/newlib/libm/fenv/fesetexceptflag.c
new file mode 100644
index 0000000..0a31f54
--- /dev/null
+++ b/newlib/libm/fenv/fesetexceptflag.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fesetexceptflag(const fexcept_t *flagp, int excepts)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/fesetround.c b/newlib/libm/fenv/fesetround.c
new file mode 100644
index 0000000..ef79cf8
--- /dev/null
+++ b/newlib/libm/fenv/fesetround.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fesetround(int round)
+{
+  return -EOPNOTSUPP;
+}
+
diff --git a/newlib/libm/fenv/fetestexcept.c b/newlib/libm/fenv/fetestexcept.c
new file mode 100644
index 0000000..4a6a305
--- /dev/null
+++ b/newlib/libm/fenv/fetestexcept.c
@@ -0,0 +1,36 @@
+
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int fetestexcept(int excepts)
+{
+  return -EOPNOTSUPP;
+}
diff --git a/newlib/libm/fenv/feupdateenv.c b/newlib/libm/fenv/feupdateenv.c
new file mode 100644
index 0000000..e301efb
--- /dev/null
+++ b/newlib/libm/fenv/feupdateenv.c
@@ -0,0 +1,36 @@
+/*
+  (c) Copyright 2019 Joel Sherrill <joel@rtems.org
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <fenv.h>
+#include <errno.h>
+
+int feupdateenv(const fenv_t *envp)
+{
+  return -EOPNOTSUPP;
+}
+
-- 
1.8.3.1

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 2/3] Add default implementation of fenv.h and all methods
  2019-07-31 23:14 ` [PATCH 2/3] Add default implementation of fenv.h and all methods Joel Sherrill
@ 2019-07-31 23:58   ` Howland, Craig D. - US via newlib
  2019-08-01 16:30     ` Joel Sherrill
  0 siblings, 1 reply; 8+ messages in thread
From: Howland, Craig D. - US via newlib @ 2019-07-31 23:58 UTC (permalink / raw)
  To: newlib

> From: newlib-owner@sourceware.org <newlib-owner@sourceware.org> on behalf of Joel Sherrill <joel@rtems.org>
> Sent: Wednesday, July 31, 2019 7:13 PM
> To: newlib@sourceware.org
> Cc: Joel Sherrill
> Subject: [PATCH 2/3] Add default implementation of fenv.h and all methods
>
>         The default implementation of the fenv.h methods return
>         -EOPNOTSUPP.
>
>         The intention of the new fenv.h is that it be portable
>         and that architectures provide their own implementation
>         of sys/fenv.h.
> ...

The RISC-V-specific things would probably be best removed from libc/include/sys/fenv.h, leaving the original one in machine (unlike the primary fenv.h, which will no longer need to be under machine, as you noted.)  At a glance, using shorthand:
-#define FE_TONEAREST_MM 0x00000004
-#define FE_RMODE_MASK   0x7
(Put another way, it should only have the bare-bones items defined in C and POSIX.)
 
In general:
+  return -EOPNOTSUPP;
     ENOTSUP, not EOPNOTSUPP.  (The latter appears first, so I'm guessing you searched on NOTSUP and just copied the wrong one).

I'd suggest comments in the .c files to say they are non-functional placeholders, even though that should be obvious.
 
While the fenv/Makefile stuff does set up the chewout files, there is no man page stuff in the C files to get.

libm/Makefile.am I think also needs:
-libm.dvi: targetdep.tex math/stmp-def complex/stmp-def
+libm.dvi: targetdep.tex math/stmp-def complex/stmp-def fenv/stmp-def
+fenv/stmp-def: stmp-targetdep ; @true
(It is set up poorly for maintenance, as ideally you'd want these to be automatic from the SUBDIRS line.)

Craig

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 2/3] Add default implementation of fenv.h and all methods
  2019-07-31 23:58   ` Howland, Craig D. - US via newlib
@ 2019-08-01 16:30     ` Joel Sherrill
  2019-08-01 17:30       ` Howland, Craig D. - US via newlib
  0 siblings, 1 reply; 8+ messages in thread
From: Joel Sherrill @ 2019-08-01 16:30 UTC (permalink / raw)
  To: Howland, Craig D. - US; +Cc: newlib

On Wed, Jul 31, 2019 at 6:58 PM Howland, Craig D. - US via newlib <
newlib@sourceware.org> wrote:

> > From: newlib-owner@sourceware.org <newlib-owner@sourceware.org> on
> behalf of Joel Sherrill <joel@rtems.org>
> > Sent: Wednesday, July 31, 2019 7:13 PM
> > To: newlib@sourceware.org
> > Cc: Joel Sherrill
> > Subject: [PATCH 2/3] Add default implementation of fenv.h and all methods
> >
> >         The default implementation of the fenv.h methods return
> >         -EOPNOTSUPP.
> >
> >         The intention of the new fenv.h is that it be portable
> >         and that architectures provide their own implementation
> >         of sys/fenv.h.
> > ...
>
> The RISC-V-specific things would probably be best removed from
> libc/include/sys/fenv.h, leaving the original one in machine (unlike the
> primary fenv.h, which will no longer need to be under machine, as you
> noted.)  At a glance, using shorthand:
> -#define FE_TONEAREST_MM 0x00000004
> -#define FE_RMODE_MASK   0x7
> (Put another way, it should only have the bare-bones items defined in C
> and POSIX.)
>

Thanks. I hadn't reviewed it against C/POSIX yet and should have.

Do you think there should be comments about constants and types in the
default sys/fenv.h or just a blanket, this is the POSIX minimum that a port
has to define

I honestly was worried the structure of this work or the regenerated stuff
would be awfully broken. I am thrilled to get meaty technical comments.


>
> In general:
> +  return -EOPNOTSUPP;
>      ENOTSUP, not EOPNOTSUPP.  (The latter appears first, so I'm guessing
> you searched on NOTSUP and just copied the wrong one).
>
>
Oh. My grep was included OP and missed ENOTSUPP


> I'd suggest comments in the .c files to say they are non-functional
> placeholders, even though that should be obvious.
>

Gotcha. Will do.

>
> While the fenv/Makefile stuff does set up the chewout files, there is no
> man page stuff in the C files to get.
>

I was planning to add it.  Especially since there isn't much to add.

>
> libm/Makefile.am I think also needs:
> -libm.dvi: targetdep.tex math/stmp-def complex/stmp-def
> +libm.dvi: targetdep.tex math/stmp-def complex/stmp-def fenv/stmp-def
> +fenv/stmp-def: stmp-targetdep ; @true
> (It is set up poorly for maintenance, as ideally you'd want these to be
> automatic from the SUBDIRS line.)
>

Thanks. I had no idea on this.

I will fix all this and submit a v2.

>
> Craig

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 2/3] Add default implementation of fenv.h and all methods
  2019-08-01 16:30     ` Joel Sherrill
@ 2019-08-01 17:30       ` Howland, Craig D. - US via newlib
  0 siblings, 0 replies; 8+ messages in thread
From: Howland, Craig D. - US via newlib @ 2019-08-01 17:30 UTC (permalink / raw)
  To: newlib

> From: newlib-owner@sourceware.org <newlib-owner@sourceware.org> on behalf of Joel Sherrill <joel@rtems.org>
> Sent: Thursday, August 1, 2019 12:30 PM
> To: Howland, Craig D. - US
> Cc: newlib@sourceware.org
> Subject: Re: [PATCH 2/3] Add default implementation of fenv.h and all methods
>
> On Wed, Jul 31, 2019 at 6:58 PM Howland, Craig D. - US via newlib <
> newlib@sourceware.org> wrote:
> > The RISC-V-specific things would probably be best removed from
> > libc/include/sys/fenv.h, leaving the original one in machine (unlike the
> > primary fenv.h, which will no longer need to be under machine, as you
> > noted.)  At a glance, using shorthand:
> > -#define FE_TONEAREST_MM 0x00000004
> > -#define FE_RMODE_MASK   0x7
> > (Put another way, it should only have the bare-bones items defined in C
> > and POSIX.)
> >
>
> Thanks. I hadn't reviewed it against C/POSIX yet and should have.
>
> Do you think there should be comments about constants and types in the
> default sys/fenv.h or just a blanket, this is the POSIX minimum that a port
> has to define
>
> I honestly was worried the structure of this work or the regenerated stuff
> would be awfully broken. I am thrilled to get meaty technical comments.
>
     I did check the fenv.h and sys/fenv.h against POSIX.
     It certainly would be nice for sys/fenv.h to at a minimum point to POSIX 
for people to look up easily, and perhaps even better to also have a quick 
summary of what it wants, since it's intended as a template.
                Craig

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2019-08-01 17:30 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-31 23:14 [PATCH 0/3] Add fenv.h generic infrastructure and default implementations Joel Sherrill
2019-07-31 23:14 ` [PATCH 1/3] Miscellaneous Makefile.in regenerated Joel Sherrill
2019-08-01  8:17   ` Richard Earnshaw (lists)
2019-07-31 23:14 ` [PATCH 3/3] Regenerated files from fenv.h addition Joel Sherrill
2019-07-31 23:14 ` [PATCH 2/3] Add default implementation of fenv.h and all methods Joel Sherrill
2019-07-31 23:58   ` Howland, Craig D. - US via newlib
2019-08-01 16:30     ` Joel Sherrill
2019-08-01 17:30       ` Howland, Craig D. - US via newlib

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