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	FSF:1.1.1;
locks; strict;
comment	@# @;


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1.1.1.1.8.2
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desc
@@


1.1
log
@Initial revision
@
text
@# This file is used if not configured --with-avrlibc=no
#
# AVR-Libc comes with hand-optimized float routines.
# For historical reasons, these routines live in AVR-Libc
# and not in libgcc and use the same function names like libgcc.
# To get the best support, i.e. always use the routines from
# AVR-Libc, we remove these routines from libgcc.
#
# See also PR54461.
#
#
# Arithmetic:
#     __addsf3 __subsf3 __divsf3 __mulsf3 __negsf2
#
# Comparison:
#     __cmpsf2 __unordsf2
#     __eqsf2 __lesf2 __ltsf2 __nesf2 __gesf2 __gtsf2
#
# Conversion:
#     __fixsfdi __fixunssfdi __floatdisf __floatundisf
#     __fixsfsi __fixunssfsi __floatsisf __floatunsisf
#
#
# These functions are contained in modules:
#
# _addsub_sf.o:   __addsf3  __subsf3
# _mul_sf.o:      __mulsf3
# _div_sf.o:      __divsf3
# _negate_sf.o:   __negsf2
#
# _compare_sf.o:  __cmpsf2
# _unord_sf.o:    __unordsf2
# _eq_sf.o:       __eqsf2
# _ne_sf.o:       __nesf2
# _ge_sf.o:       __gesf2
# _gt_sf.o:       __gtsf2
# _le_sf.o:       __lesf2
# _lt_sf.o:       __ltsf2
#
# _fixsfdi.o:     __fixsfdi
# _fixunssfdi.o:  __fixunssfdi
# _fixunssfsi.o:  __fixunssfsi
# _floatdisf.o:   __floatdisf
# _floatundisf.o: __floatundisf
# _sf_to_si.o:    __fixsfsi
# _si_to_sf.o:    __floatsisf
# _usi_to_sf.o:   __floatunsisf


# SFmode
LIB2FUNCS_EXCLUDE += \
	_addsub_sf \
	_negate_sf \
	_mul_sf _div_sf \
	\
	_compare_sf \
	_unord_sf \
	_eq_sf _ne_sf \
	_gt_sf _ge_sf \
	_lt_sf _le_sf \
	\
	_si_to_sf  _sf_to_si \
	_usi_to_sf _sf_to_usi \
	_fixunssfsi _fixsfdi \
	_fixunssfdi \
	_floatdisf _floatundisf
@


1.1.1.1
log
@import GCC 4.8 branch at r206687.

highlights from: http://gcc.gnu.org/gcc-4.6/changes.html

   GCC now has stricter checks for invalid command-line options
   New -Wunused-but-set-variable and -Wunused-but-set-parameter
      warnings
   Many platforms have been obsoleted
   Link-time optimization improvements
   A new switch -fstack-usage has been added
   A new function attribute leaf was introduced
   A new warning, enabled by -Wdouble-promotion
   Support for selectively enabling and disabling warnings via
      #pragma GCC diagnostic has been added
   There is now experimental support for some features from the
      upcoming C1X revision of the ISO C standard
   Improved experimental support for the upcoming C++0x ISO C++
      standard
   G++ now issues clearer diagnostics in several cases
   Updates for ARM, x86, MIPS, PPC/PPC64, SPARC
   Darwin, FreeBSD, Solaris 2, MinGW and Cygwin now all support
      __float128 on 32-bit and 64-bit x86 targets. [*1]

highlights from: http://gcc.gnu.org/gcc-4.7/changes.html

   The -fconserve-space flag has been deprecated
   Support for a new parameter --param case-values-threshold=n
      was added
   Interprocedural and Link-time optimization improvements
   A new built-in, __builtin_assume_aligned, has been added
   A new warning option -Wunused-local-typedefs was added
   A new experimental command-line option -ftrack-macro-expansion
      was added
   Support for atomic operations specifying the C++11/C11 memory
      model has been added
   There is support for some more features from the C11 revision
      of the ISO C standard
   Improved experimental support for the new ISO C++ standard,
      C++11
   Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE*
   A new option (-grecord-gcc-switches) was added

highlights from: http://gcc.gnu.org/gcc-4.8/changes.html

   GCC now uses C++ as its implementation language.  This means
      that to build GCC from sources, you will need a C++
      compiler that understands C++ 2003
   DWARF4 is now the default when generating DWARF debug
      information
   A new general optimization level, -Og, has been introduced
   A new option -ftree-partial-pre was added
   The option -fconserve-space has been removed
   The command-line options -fipa-struct-reorg and
      -fipa-matrix-reorg have been removed
   Interprocedural and Link-time optimization improvements
   AddressSanitizer, a fast memory error detector, has been
      added  [*2]
   A new -Wsizeof-pointer-memaccess warning has been added
   G++ now supports a -std=c++1y option for experimentation
      with features proposed for the next revision of the
      standard, expected around 2014
   Improved experimental support for the new ISO C++ standard,
      C++11
   A new port has been added to support AArch64
   Updates for ARM, x86, MIPS, PPC/PPC64, SH, SPARC, TILE*


[*1] we should support this too!
[*2] we should look into this.
     https://code.google.com/p/address-sanitizer/
@
text
@@


1.1.1.2
log
@initial import of GCC 10.3.0.  main changes include:

caveats:
- ABI issue between c++14 and c++17 fixed
- profile mode is removed from libstdc++
- -fno-common is now the default

new features:
- new flags -fallocation-dce, -fprofile-partial-training,
  -fprofile-reproducible, -fprofile-prefix-path, and -fanalyzer
- many new compile and link time optimisations
- enhanced drive optimisations
- openacc 2.6 support
- openmp 5.0 features
- new warnings: -Wstring-compare and -Wzero-length-bounds
- extended warnings: -Warray-bounds, -Wformat-overflow,
  -Wrestrict, -Wreturn-local-addr, -Wstringop-overflow,
  -Warith-conversion, -Wmismatched-tags, and -Wredundant-tags
- some likely C2X features implemented
- more C++20 implemented
- many new arm & intel CPUs known

hundreds of reported bugs are fixed.  full list of changes
can be found at:

   https://gcc.gnu.org/gcc-10/changes.html
@
text
@a66 38

ifeq (,$(WITH_LIBF7_MATH_SYMBOLS))

# No modules depend on __SIZEOF_LONG_DOUBLE__ or __SIZEOF_DOUBLE__
# which means we might have an opportunity to copy libgcc.a.
# WITH_LIBF7_MATH_SYMBOLS is set by libf7/t-libf7-math-symbols.

ifneq (,$(findstring avr,$(MULTISUBDIR)))

# We are not in the avr2 (default) subdir, hence copying will work.
# In default dir, copying won'twork because the default multilib is
# built after all the others.

ifneq (,$(findstring double,$(MULTISUBDIR)))

# We are in double{32|64}/libgcc or long-double{32|64}/libgcc:
# Just copy from the [long ]double=float multilib; we would remove any DFmode
# bits from this multilib variant, anyway, because the current assumption
# is that avr-libc hosts *all* the IEEE-double stuff.

LIB2FUNCS_EXCLUDE := %
LIB1ASMFUNCS :=
libgcc-objects :=
libgcov-objects :=
objects :=

t-copy-libgcc.dep: $(srcdir)/config/avr/t-copy-libgcc
	-rm -f libgcc.a
	-rm -f libgcov.a
	cp $< $@@

libgcc.a libgcov.a libgcc_tm.h: t-copy-libgcc.dep

Makefile: t-copy-libgcc.dep

endif
endif
endif
@


1.1.1.1.8.1
log
@file t-avrlibc was added on branch tls-maxphys on 2014-08-19 23:54:25 +0000
@
text
@d1 66
@


1.1.1.1.8.2
log
@Rebase to HEAD as of a few days ago.
@
text
@a0 66
# This file is used if not configured --with-avrlibc=no
#
# AVR-Libc comes with hand-optimized float routines.
# For historical reasons, these routines live in AVR-Libc
# and not in libgcc and use the same function names like libgcc.
# To get the best support, i.e. always use the routines from
# AVR-Libc, we remove these routines from libgcc.
#
# See also PR54461.
#
#
# Arithmetic:
#     __addsf3 __subsf3 __divsf3 __mulsf3 __negsf2
#
# Comparison:
#     __cmpsf2 __unordsf2
#     __eqsf2 __lesf2 __ltsf2 __nesf2 __gesf2 __gtsf2
#
# Conversion:
#     __fixsfdi __fixunssfdi __floatdisf __floatundisf
#     __fixsfsi __fixunssfsi __floatsisf __floatunsisf
#
#
# These functions are contained in modules:
#
# _addsub_sf.o:   __addsf3  __subsf3
# _mul_sf.o:      __mulsf3
# _div_sf.o:      __divsf3
# _negate_sf.o:   __negsf2
#
# _compare_sf.o:  __cmpsf2
# _unord_sf.o:    __unordsf2
# _eq_sf.o:       __eqsf2
# _ne_sf.o:       __nesf2
# _ge_sf.o:       __gesf2
# _gt_sf.o:       __gtsf2
# _le_sf.o:       __lesf2
# _lt_sf.o:       __ltsf2
#
# _fixsfdi.o:     __fixsfdi
# _fixunssfdi.o:  __fixunssfdi
# _fixunssfsi.o:  __fixunssfsi
# _floatdisf.o:   __floatdisf
# _floatundisf.o: __floatundisf
# _sf_to_si.o:    __fixsfsi
# _si_to_sf.o:    __floatsisf
# _usi_to_sf.o:   __floatunsisf


# SFmode
LIB2FUNCS_EXCLUDE += \
	_addsub_sf \
	_negate_sf \
	_mul_sf _div_sf \
	\
	_compare_sf \
	_unord_sf \
	_eq_sf _ne_sf \
	_gt_sf _ge_sf \
	_lt_sf _le_sf \
	\
	_si_to_sf  _sf_to_si \
	_usi_to_sf _sf_to_usi \
	_fixunssfsi _fixsfdi \
	_fixunssfdi \
	_floatdisf _floatundisf
@


1.1.1.1.4.1
log
@file t-avrlibc was added on branch yamt-pagecache on 2014-05-22 16:36:24 +0000
@
text
@d1 66
@


1.1.1.1.4.2
log
@sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")
@
text
@a0 66
# This file is used if not configured --with-avrlibc=no
#
# AVR-Libc comes with hand-optimized float routines.
# For historical reasons, these routines live in AVR-Libc
# and not in libgcc and use the same function names like libgcc.
# To get the best support, i.e. always use the routines from
# AVR-Libc, we remove these routines from libgcc.
#
# See also PR54461.
#
#
# Arithmetic:
#     __addsf3 __subsf3 __divsf3 __mulsf3 __negsf2
#
# Comparison:
#     __cmpsf2 __unordsf2
#     __eqsf2 __lesf2 __ltsf2 __nesf2 __gesf2 __gtsf2
#
# Conversion:
#     __fixsfdi __fixunssfdi __floatdisf __floatundisf
#     __fixsfsi __fixunssfsi __floatsisf __floatunsisf
#
#
# These functions are contained in modules:
#
# _addsub_sf.o:   __addsf3  __subsf3
# _mul_sf.o:      __mulsf3
# _div_sf.o:      __divsf3
# _negate_sf.o:   __negsf2
#
# _compare_sf.o:  __cmpsf2
# _unord_sf.o:    __unordsf2
# _eq_sf.o:       __eqsf2
# _ne_sf.o:       __nesf2
# _ge_sf.o:       __gesf2
# _gt_sf.o:       __gtsf2
# _le_sf.o:       __lesf2
# _lt_sf.o:       __ltsf2
#
# _fixsfdi.o:     __fixsfdi
# _fixunssfdi.o:  __fixunssfdi
# _fixunssfsi.o:  __fixunssfsi
# _floatdisf.o:   __floatdisf
# _floatundisf.o: __floatundisf
# _sf_to_si.o:    __fixsfsi
# _si_to_sf.o:    __floatsisf
# _usi_to_sf.o:   __floatunsisf


# SFmode
LIB2FUNCS_EXCLUDE += \
	_addsub_sf \
	_negate_sf \
	_mul_sf _div_sf \
	\
	_compare_sf \
	_unord_sf \
	_eq_sf _ne_sf \
	_gt_sf _ge_sf \
	_lt_sf _le_sf \
	\
	_si_to_sf  _sf_to_si \
	_usi_to_sf _sf_to_usi \
	_fixunssfsi _fixsfdi \
	_fixunssfdi \
	_floatdisf _floatundisf
@