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author | Georg-Johann Lay <avr@gjlay.de> | 2019-11-07 09:19:31 +0000 |
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committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2019-11-07 09:19:31 +0000 |
commit | 29f3def30844dd13e79972fa03a50af68120f7ac (patch) | |
tree | 270260e9909fa2a95f28ea376624c6c735ad5f73 /libgcc/config/avr | |
parent | 76bc24ff68284d90bc8d334b72c9690382747add (diff) | |
download | gcc-29f3def30844dd13e79972fa03a50af68120f7ac.zip gcc-29f3def30844dd13e79972fa03a50af68120f7ac.tar.gz gcc-29f3def30844dd13e79972fa03a50af68120f7ac.tar.bz2 |
Support 64-bit double and 64-bit long double configurations.
gcc/
Support 64-bit double and 64-bit long double configurations.
PR target/92055
* config.gcc (tm_defines) [avr]: Set from --with-double=,
--with-long-double=.
* config/avr/t-multilib: Remove.
* config/avr/t-avr: Output of genmultilib.awk is now fully
dynamically generated and no more part of the repo.
(HAVE_DOUBLE_MULTILIB, HAVE_LONG_DOUBLE_MULTILIB): New variables.
Pass them down to...
* config/avr/genmultilib.awk: ...here and handle them.
* gcc/config/avr/avr.opt (-mdouble=, avr_double). New option and var.
(-mlong-double=, avr_long_double). New option and var.
* common/config/avr/avr-common.c (opts.h, diagnostic.h): Include.
(TARGET_OPTION_OPTIMIZATION_TABLE) <-mdouble=, -mlong-double=>:
Set default as requested by --with-double=
(TARGET_HANDLE_OPTION): Define to this...
(avr_handle_option): ...new hook worker.
* config/avr/avr.h (DOUBLE_TYPE_SIZE): Define to avr_double.
(LONG_DOUBLE_TYPE_SIZE): Define to avr_long_double.
(avr_double_lib): New proto for spec function.
(EXTRA_SPEC_FUNCTIONS) <double-lib>: Add.
(DRIVER_SELF_SPECS): Call %:double-lib.
* config/avr/avr.c (avr_option_override): Assert
sizeof(long double) >= sizeof(double) for the target.
* config/avr/avr-c.c (avr_cpu_cpp_builtins)
[__HAVE_DOUBLE_MULTILIB__, __HAVE_LONG_DOUBLE_MULTILIB__]
[__HAVE_DOUBLE64__, __HAVE_DOUBLE32__, __DEFAULT_DOUBLE__=]
[__HAVE_LONG_DOUBLE64__, __HAVE_LONG_DOUBLE32__]
[__HAVE_LONG_DOUBLE_IS_DOUBLE__, __DEFAULT_LONG_DOUBLE__=]:
New built-in define depending on --with-double=, --with-long-double=.
* config/avr/driver-avr.c (avr_double_lib): New spec function.
* doc/invoke.tex (AVR Options) <-mdouble=,-mlong-double=>: Doc.
* doc/install.texi (Cross-Compiler-Specific Options)
<--with-double=, --with-long-double=>: Doc.
libgcc/
Support 64-bit double and 64-bit long double configurations.
PR target/92055
* config/avr/t-avr (HOST_LIBGCC2_CFLAGS): Only add -DF=SF if
long double is a 32-bit type.
* config/avr/t-avrlibc: Copy double64 and long-double64
multilib(s) from the vanilla one.
* config/avr/t-copy-libgcc: New Makefile snip.
From-SVN: r277908
Diffstat (limited to 'libgcc/config/avr')
-rw-r--r-- | libgcc/config/avr/t-avr | 8 | ||||
-rw-r--r-- | libgcc/config/avr/t-avrlibc | 31 | ||||
-rw-r--r-- | libgcc/config/avr/t-copy-libgcc | 13 |
3 files changed, 50 insertions, 2 deletions
diff --git a/libgcc/config/avr/t-avr b/libgcc/config/avr/t-avr index c420c5d..e4f867b 100644 --- a/libgcc/config/avr/t-avr +++ b/libgcc/config/avr/t-avr @@ -112,10 +112,14 @@ LIB2FUNCS_EXCLUDE = \ _clrsbdi2 \ -# We do not have the DF type. +ifeq ($(long_double_type_size),32) +# We do not have the DFtype. +HOST_LIBGCC2_CFLAGS += -DDF=SF +endif + # Most of the C functions in libgcc2 use almost all registers, # so use -mcall-prologues for smaller code size. -HOST_LIBGCC2_CFLAGS += -DDF=SF -Dinhibit_libc -mcall-prologues -Os +HOST_LIBGCC2_CFLAGS += -Dinhibit_libc -mcall-prologues -Os # Extra 16-bit integer functions. intfuncs16 = _absvXX2 _addvXX3 _subvXX3 _mulvXX3 _negvXX2 _clrsbXX2 diff --git a/libgcc/config/avr/t-avrlibc b/libgcc/config/avr/t-avrlibc index d2c8b87..2424d66 100644 --- a/libgcc/config/avr/t-avrlibc +++ b/libgcc/config/avr/t-avrlibc @@ -64,3 +64,34 @@ LIB2FUNCS_EXCLUDE += \ _fixunssfsi _fixsfdi \ _fixunssfdi \ _floatdisf _floatundisf + +ifneq (,$(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 double64,$(MULTISUBDIR))) + +# We are in double64/libgcc or long-double64/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 diff --git a/libgcc/config/avr/t-copy-libgcc b/libgcc/config/avr/t-copy-libgcc new file mode 100644 index 0000000..d34cbde --- /dev/null +++ b/libgcc/config/avr/t-copy-libgcc @@ -0,0 +1,13 @@ +# Only used with --with-avrlibc & (-mlong-double=64 | -mdouble=64) +# +# Inserted at the end of Makefile by magic[tm]. +# We need this *after* Makefile's rules so we can override them. + +libgcc.a: ../../libgcc/libgcc.a + cp $< $@ + +libgcov.a: ../../libgcc/libgcov.a + @: +ifeq ($(enable_gcov),yes) + cp $< $@ +endif |