config.gcc (mips64*-*-linux*): Added.
* config.gcc (mips64*-*-linux*): Added. * config/mips/linux64.h, config/mips/t-linux64: New file. * config/mips/iris6.h (MIPS_TFMODE_FORMAT): Define. * config/mips/mips.c (override_options): Use it. * config/mips/mips.h (TARGET_SWITCHES): Added... (SUBTARGET_TARGET_SWITCHES): New, empty by default. * Makefile.in (SPECS): New. (STAGESTUFF, specs, mostlyclean, install-common): Use it. * gcc.c (process_command): Move self-spec processing past spec file loading. * doc/tm.texi (DRIVER_SELF_SPECS): Document the change. * doc/fragments.texi (MULTILIB_EXTRA_OPTS): Document need for CRTSTUFF_T_CFLAGS. (SPECS): Document. * doc/invoke.texi (-mabi-fake-default): Document. From-SVN: r61481
This commit is contained in:
Alexandre Oliva
Alexandre Oliva
parent
e9f13564bb
commit
3bd6d4c458
@ -1,3 +1,21 @@
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2003-01-19 Alexandre Oliva <aoliva@redhat.com>
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* config.gcc (mips64*-*-linux*): Added.
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* config/mips/linux64.h, config/mips/t-linux64: New file.
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* config/mips/iris6.h (MIPS_TFMODE_FORMAT): Define.
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* config/mips/mips.c (override_options): Use it.
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* config/mips/mips.h (TARGET_SWITCHES): Added...
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(SUBTARGET_TARGET_SWITCHES): New, empty by default.
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* Makefile.in (SPECS): New.
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(STAGESTUFF, specs, mostlyclean, install-common): Use it.
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* gcc.c (process_command): Move self-spec processing past spec
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file loading.
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* doc/tm.texi (DRIVER_SELF_SPECS): Document the change.
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* doc/fragments.texi (MULTILIB_EXTRA_OPTS): Document need for
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CRTSTUFF_T_CFLAGS.
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(SPECS): Document.
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* doc/invoke.texi (-mabi-fake-default): Document.
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2003-01-19 Stephane Carrez <stcarrez@nerim.fr>
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* config/m68hc11/m68hc11.c (stack_push_word, stack_pop_word,
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@ -549,6 +549,13 @@ T =
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T_TARGET =
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T_TARGET : $(T_TARGET)
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# This should name the specs file that we're going to install. Target
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# Makefiles may override it and name another file to be generated from
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# the built-in specs and installed as the default spec, as long as
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# they also introduce a rule to generate a file name specs, to be used
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# at build time.
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SPECS = specs
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# End of variables for you to override.
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# Definition of `all' is here so that new rules inserted by sed
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@ -788,7 +795,7 @@ STAGESTUFF = *$(objext) insn-flags.h insn-config.h insn-codes.h \
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xgcc$(exeext) cpp$(exeext) cc1$(exeext) $(EXTRA_PASSES) \
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$(EXTRA_PARTS) $(EXTRA_PROGRAMS) gcc-cross$(exeext) cc1obj$(exeext) \
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protoize$(exeext) unprotoize$(exeext) \
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specs collect2$(exeext) $(USE_COLLECT2) \
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$(SPECS) collect2$(exeext) $(USE_COLLECT2) \
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gcov-iov$(build_exeext) gcov$(exeext) gcov-dump$(exeext) \
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*.[0-9][0-9].* *.[si] libcpp.a libbackend.a libgcc.mk \
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$(LANG_STAGESTUFF)
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@ -994,9 +1001,9 @@ cpp$(exeext): gcc.o cppspec.o version.o intl.o prefix.o \
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prefix.o version.o $(EXTRA_GCC_OBJS) $(LIBS)
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# Dump a specs file to make -B./ read these specs over installed ones.
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specs: xgcc$(exeext)
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$(SPECS): xgcc$(exeext)
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$(GCC_FOR_TARGET) -dumpspecs > tmp-specs
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mv tmp-specs specs
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mv tmp-specs $(SPECS)
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# We do want to create an executable named `xgcc', so we can use it to
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# compile libgcc2.a.
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@ -2668,7 +2675,7 @@ mostlyclean: $(INTL_MOSTLYCLEAN) lang.mostlyclean
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# Delete debugging dump files.
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-rm -f *.[0-9][0-9].* */*.[0-9][0-9].*
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# Delete some files made during installation.
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-rm -f specs SYSCALLS.c.X SYSCALLS.c
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-rm -f specs $(SPECS) SYSCALLS.c.X SYSCALLS.c
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-rm -f collect collect2 mips-tfile mips-tdump
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# Delete files generated for fixproto
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-rm -rf fix-header$(build_exeext) xsys-protos.h deduced.h tmp-deduced.h \
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@ -2841,7 +2848,7 @@ install-common: native $(EXTRA_PARTS) lang.install-common
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# Don't mess with specs if it doesn't exist yet.
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-if [ -f specs ] ; then \
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rm -f $(DESTDIR)$(libsubdir)/specs; \
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$(INSTALL_DATA) specs $(DESTDIR)$(libsubdir)/specs; \
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$(INSTALL_DATA) $(SPECS) $(DESTDIR)$(libsubdir)/specs; \
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chmod a-x $(DESTDIR)$(libsubdir)/specs; \
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fi
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# Install protoize if it was compiled.
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@ -1,5 +1,6 @@
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# GCC build-, host- and target-specific configuration file.
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# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
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# Free Software Foundation, Inc.
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#This file is part of GCC.
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@ -1802,6 +1803,24 @@ mips*-*-netbsd*) # NetBSD/mips, either endian.
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tm_file="elfos.h ${tm_file} mips/netbsd.h"
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tmake_file="${tmake_file}"
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;;
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mips64*-*-linux*)
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tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h mips/linux64.h"
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tmake_file="t-slibgcc-elf-ver t-linux mips/t-linux mips/t-linux64"
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# This default ABI is a partial lie: t-linux64 overrides the
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# DRIVER_SELF_SPEC that sets the default abi, in the spec file
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# that is installed. What GCC thinks of as the default must
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# remain as ABI_32 such that the SONAMEs of the libgcc shared
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# libraries remain compatible with those of mips-linux-gnu.
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tm_defines="MIPS_ISA_DEFAULT=1 MIPS_ABI_DEFAULT=ABI_32"
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target_cpu_default="MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT"
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extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
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gnu_ld=yes
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gas=yes
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if test x$enable_threads = xyes; then
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thread_file='posix'
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fi
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;;
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mips*-*-linux*) # Linux MIPS, either endian.
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tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h"
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case $machine in
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@ -1,5 +1,5 @@
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/* Definitions of target machine for GNU compiler. Iris version 6.
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Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002
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Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003
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Free Software Foundation, Inc.
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This file is part of GNU CC.
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@ -509,3 +509,5 @@ do { \
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%{shared:-hidden_symbol __do_global_ctors,__do_global_ctors_1,__do_global_dtors} \
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-_SYSTYPE_SVR4 -woff 131 \
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%{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}"
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#define MIPS_TFMODE_FORMAT ibm_extended_format
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99
gcc/config/mips/linux64.h
Normal file
99
gcc/config/mips/linux64.h
Normal file
@ -0,0 +1,99 @@
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/* Definitions for MIPS running Linux-based GNU systems with ELF format
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using n32/64 abi.
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Copyright 2002, 2003 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
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along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This sets the post-install default ABI to n32. This must NOT be
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kept in sync with the default ABI in gcc/config.gcc; it's actually
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meant to override that. However, for correct behavior at build
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time, we also need t-linux64 to get the build-time specs in line
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with the setting in config.gcc. */
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#define DRIVER_DEFAULT_ABI_SELF_SPEC "%{!mabi=*:-mabi=n32}"
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#define SUBTARGET_EXTRA_SPECS \
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{ "driver_default_abi_self_spec", DRIVER_DEFAULT_ABI_SELF_SPEC },
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#define DRIVER_SELF_SPECS \
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"%{mabi-fake-default:%{!mabi=*:-mabi=32}}", \
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"%(driver_default_abi_self_spec)", \
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"%{!mips*:%{mabi=32:-mips1}%{mabi=n32:-mips3}%{mabi=64:-mips4}}"
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#undef SUBTARGET_TARGET_SWITCHES
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#define SUBTARGET_TARGET_SWITCHES \
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{ "abi-fake-default", 0, N_("Same as -mabi=32, just trickier") },
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#undef SUBTARGET_ASM_SPEC
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#define SUBTARGET_ASM_SPEC "\
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%{!fno-PIC:%{!fno-pic:-KPIC}} \
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%{fno-PIC:-non_shared} %{fno-pic:-non_shared} \
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%{mabi=64:-64} %{mabi=n32:-n32} \
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%{!mips*: %{mabi=n32|mabi=32:-mips3} %{mabi=64:-mips4}}"
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#undef LIB_SPEC
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#define LIB_SPEC "\
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%{!static: \
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%{mabi=n32:-rpath-link %R/lib32:%R/usr/lib32} \
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%{mabi=64:-rpath-link %R/lib64:%R/usr/lib64} \
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%{mabi=32:-rpath-link %R/lib:%R/usr/lib}} \
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%{!shared: %{pthread:-lthread} %{profile:-lc_p} %{!profile: -lc}}"
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#undef LINK_SPEC
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#define LINK_SPEC "\
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%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
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%{bestGnum} %{shared} %{non_shared} \
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%{call_shared} %{no_archive} %{exact_version} \
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%(endian_spec) \
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%{!shared: \
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%{!ibcs: \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker: \
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%{mabi=n32: -dynamic-linker /lib32/ld.so.1} \
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%{mabi=64: -dynamic-linker /lib64/ld.so.1} \
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%{mabi=32: -dynamic-linker /lib/ld.so.1}}} \
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%{static:-static}}} \
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%{mabi=n32: -melf32btsmipn32} \
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%{mabi=64: -melf64btsmip} \
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%{mabi=32: -melf32btsmip}"
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#undef STARTFILE_PREFIX_SPEC
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#define STARTFILE_PREFIX_SPEC "\
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%{mabi=n32: /lib32/ /usr/lib32/} \
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%{mabi=64: /lib64/ /usr/lib64/} \
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%{mabi=32: /lib/ /usr/lib/}"
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#undef LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX ((mips_abi == ABI_32 || mips_abi == ABI_O64) \
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? "$" : ".")
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|
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/* The size in bytes of a DWARF field indicating an offset or length
|
||||
relative to a debug info section, specified to be 4 bytes in the DWARF-2
|
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specification. The SGI/MIPS ABI defines it to be the same as PTR_SIZE. */
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#define DWARF_OFFSET_SIZE PTR_SIZE
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||||
#undef ASM_PREFERRED_EH_DATA_FORMAT
|
||||
#if 0 /* We can't use relative addressing modes on NEWABI :-( */
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#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
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||||
(flag_pic \
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||||
? ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_sdata4 \
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||||
: DW_EH_PE_absptr)
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||||
#endif
|
||||
|
||||
/* GNU/Linux doesn't use the same floating-point format that IRIX uses
|
||||
for long double. There's no need to override this here, since
|
||||
ieee_quad_format is the default, but let's put this here to make
|
||||
sure nobody thinks we just forgot to set it to something else. */
|
||||
#define MIPS_TFMODE_FORMAT ieee_quad_format
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||||
@ -5359,6 +5359,10 @@ override_options ()
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||||
else
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||||
mips16 = 0;
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||||
|
||||
#ifdef MIPS_TFMODE_FORMAT
|
||||
real_format_for_mode[TFmode - QFmode] = &MIPS_TFMODE_FORMAT;
|
||||
#endif
|
||||
|
||||
mips_print_operand_punct['?'] = 1;
|
||||
mips_print_operand_punct['#'] = 1;
|
||||
mips_print_operand_punct['&'] = 1;
|
||||
|
||||
@ -534,6 +534,7 @@ extern void sbss_section PARAMS ((void));
|
||||
|
||||
#define TARGET_SWITCHES \
|
||||
{ \
|
||||
SUBTARGET_TARGET_SWITCHES \
|
||||
{"no-crt0", 0, \
|
||||
N_("No default crt0.o") }, \
|
||||
{"int64", MASK_INT64 | MASK_LONG64, \
|
||||
@ -993,6 +994,7 @@ extern void sbss_section PARAMS ((void));
|
||||
|
||||
#define GAS_ASM_SPEC "%{mtune=*} %{v}"
|
||||
|
||||
#define SUBTARGET_TARGET_SWITCHES
|
||||
|
||||
extern int mips_abi;
|
||||
|
||||
|
||||
41
gcc/config/mips/t-linux64
Normal file
41
gcc/config/mips/t-linux64
Normal file
@ -0,0 +1,41 @@
|
||||
MULTILIB_OPTIONS = mabi=32/mabi=n32/mabi=64
|
||||
MULTILIB_DIRNAMES = o32 32 64
|
||||
MULTILIB_OSDIRNAMES = ../lib ../lib32 ../lib64
|
||||
|
||||
EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o
|
||||
|
||||
LIB2FUNCS_EXTRA = $(srcdir)/config/mips/_tilib.c
|
||||
|
||||
TPBIT = tp-bit.c
|
||||
|
||||
tp-bit.c: $(srcdir)/config/fp-bit.c
|
||||
echo '#ifdef __MIPSEL__' > tp-bit.c
|
||||
echo '# define FLOAT_BIT_ORDER_MISMATCH' >> tp-bit.c
|
||||
echo '#endif' >> tp-bit.c
|
||||
echo '#if __LDBL_MANT_DIG__ == 113' >> tp-bit.c
|
||||
echo '# define TFLOAT' >> tp-bit.c
|
||||
cat $(srcdir)/config/fp-bit.c >> tp-bit.c
|
||||
echo '#endif' >> tp-bit.c
|
||||
|
||||
# This arranges for us to extract the built-in specs of the compiler
|
||||
# into specs.install. It's this file that we're going to install as
|
||||
# specs. Howver, at toolchain build time, we must use specs that
|
||||
# enforce the defaults that the compiler expects, namely, the o32 ABI,
|
||||
# instead of n32, that we want to use as the default post install.
|
||||
SPECS = specs.install
|
||||
specs: specs.install
|
||||
# Changing the build-time default ABI from n32 to o32
|
||||
# The post-install default ABI will remain n32
|
||||
@if test "x`grep '!mabi=\*:-mabi=n32' specs.install`" = \
|
||||
"x%{!mabi=*:-mabi=n32}"; then \
|
||||
sed 's,\(!mabi=\*:-mabi\)=n32,\1=32,' < specs.install > $@ ; \
|
||||
else \
|
||||
echo failed, gcc/config/mips/t-linux64 needs updating >&2; \
|
||||
false; \
|
||||
fi
|
||||
|
||||
# This arranges for anyone who uses gcc -print-multi-lib post
|
||||
# installation to get lists of options for each multilib to get
|
||||
# options that actually work.
|
||||
MULTILIB_EXTRA_OPTS = mabi-fake-default
|
||||
CRTSTUFF_T_CFLAGS = -mabi-fake-default
|
||||
@ -1,5 +1,5 @@
|
||||
@c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
|
||||
@c 1999, 2000, 2001 Free Software Foundation, Inc.
|
||||
@c 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
|
||||
@c This is part of the GCC manual.
|
||||
@c For copying conditions, see the file gcc.texi.
|
||||
|
||||
@ -147,7 +147,24 @@ at the same time. Therefore @code{MULTILIB_EXCEPTIONS} is set to
|
||||
Sometimes it is desirable that when building multiple versions of
|
||||
@file{libgcc.a} certain options should always be passed on to the
|
||||
compiler. In that case, set @code{MULTILIB_EXTRA_OPTS} to be the list
|
||||
of options to be used for all builds.
|
||||
of options to be used for all builds. If you set this, you should
|
||||
probably set @code{CRTSTUFF_T_CFLAGS} to a dash followed by it.
|
||||
|
||||
@findex SPECS
|
||||
@item SPECS
|
||||
Unfortunately, setting @code{MULTILIB_EXTRA_OPTS} is not enough, since
|
||||
it does not affect the build of target libraries, at least not the
|
||||
build of the default multilib. One possible work-around is to use
|
||||
@code{DRIVER_SELF_SPECS} to bring options from the @file{specs} file
|
||||
as if they had been passed in the compiler driver command line.
|
||||
However, you don't want to be adding these options after the toolchain
|
||||
is installed, so you can instead tweak the @file{specs} file that will
|
||||
be used during the toolchain build, while you still install the
|
||||
original, built-in @file{specs}. The trick is to set @code{SPECS} to
|
||||
some other filename (say @file{specs.install}), that will then be
|
||||
created out of the built-in specs, and introduce a @file{Makefile}
|
||||
rule to generate the @file{specs} file that's going to be used at
|
||||
build time out of your @file{specs.install}.
|
||||
@end table
|
||||
|
||||
@node Host Fragment
|
||||
|
||||
@ -491,7 +491,7 @@ in the following sections.
|
||||
-mrnames -msoft-float @gol
|
||||
-m4650 -msingle-float -mmad @gol
|
||||
-mstats -EL -EB -G @var{num} -nocpp @gol
|
||||
-mabi=32 -mabi=n32 -mabi=64 -mabi=eabi @gol
|
||||
-mabi=32 -mabi=n32 -mabi=64 -mabi=eabi -mabi-fake-default @gol
|
||||
-mfix7000 -mno-crt0 -mflush-func=@var{func} -mno-flush-func @gol
|
||||
-mbranch-likely -mno-branch-likely}
|
||||
|
||||
@ -7465,6 +7465,37 @@ selects the one defined by MIPS@. Both these ABIs have
|
||||
64-bit code when you select a 64-bit architecture, but you
|
||||
can use @option{-mgp32} to get 32-bit code instead.
|
||||
|
||||
@item -mabi-fake-default
|
||||
@opindex mabi-fake-default
|
||||
You don't want to know what this option does. No, really. I mean
|
||||
it. Move on to the next option.
|
||||
|
||||
What? You're still here? Oh, well@enddots{} Ok, here's the deal. GCC
|
||||
wants the default set of options to get the root of the multilib tree,
|
||||
and the shared library SONAMEs without any multilib-indicating
|
||||
suffixes. This is not convenience for @samp{mips64-linux-gnu}, since
|
||||
we want to default to the N32 ABI, while still being binary-compatible
|
||||
with @samp{mips-linux-gnu} if you stick to the O32 ABI@. Being
|
||||
binary-compatible means shared libraries should have the same SONAMEs,
|
||||
and libraries should live in the same location. Having O32 libraries
|
||||
in a sub-directory named say @file{o32} is not acceptable.
|
||||
|
||||
So we trick GCC into believing that O32 is the default ABI, except
|
||||
that we override the default with some internal command-line
|
||||
processing magic. Problem is, if we stopped at that, and you then
|
||||
created a multilib-aware package that used the output of @command{gcc
|
||||
-print-multi-lib} to decide which multilibs to build, and how, and
|
||||
you'd find yourself in an awkward situation when you found out that
|
||||
some of the options listed ended up mapping to the same multilib, and
|
||||
none of your libraries was actually built for the multilib that
|
||||
@option{-print-multi-lib} claims to be the default. So we added this
|
||||
option that disables the default switcher, falling back to GCC's
|
||||
original notion of the default library. Confused yet?
|
||||
|
||||
For short: don't ever use this option, unless you find it in the list
|
||||
of additional options to be used when building for multilibs, in the
|
||||
output of @option{gcc -print-multi-lib}.
|
||||
|
||||
@item -mmips-as
|
||||
@opindex mmips-as
|
||||
Generate code for the MIPS assembler, and invoke @file{mips-tfile} to
|
||||
|
||||
@ -168,11 +168,12 @@ multilibs. Example nonsensical definition, where @code{-malt-abi},
|
||||
A list of specs for the driver itself. It should be a suitable
|
||||
initializer for an array of strings, with no surrounding braces.
|
||||
|
||||
The driver applies these specs to its own command line before choosing
|
||||
the multilib directory or running any subcommands. It applies them in
|
||||
the order given, so each spec can depend on the options added by
|
||||
earlier ones. It is also possible to remove options using
|
||||
@samp{%<@var{option}} in the usual way.
|
||||
The driver applies these specs to its own command line between loading
|
||||
default @file{specs} files (but not command-line specified ones) and
|
||||
choosing the multilib directory or running any subcommands. It
|
||||
applies them in the order given, so each spec can depend on the
|
||||
options added by earlier ones. It is also possible to remove options
|
||||
using @samp{%<@var{option}} in the usual way.
|
||||
|
||||
This macro can be useful when a port has several interdependent target
|
||||
options. It provides a way of standardizing the command line so
|
||||
|
||||
12
gcc/gcc.c
12
gcc/gcc.c
@ -6198,12 +6198,6 @@ main (argc, argv)
|
||||
|
||||
process_command (argc, argv);
|
||||
|
||||
/* Process DRIVER_SELF_SPECS, adding any new options to the end
|
||||
of the command line. */
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
|
||||
do_self_spec (driver_self_specs[i]);
|
||||
|
||||
/* Initialize the vector of specs to just the default.
|
||||
This means one element containing 0s, as a terminator. */
|
||||
|
||||
@ -6237,6 +6231,12 @@ main (argc, argv)
|
||||
if (access (specs_file, R_OK) == 0)
|
||||
read_specs (specs_file, TRUE);
|
||||
|
||||
/* Process DRIVER_SELF_SPECS, adding any new options to the end
|
||||
of the command line. */
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
|
||||
do_self_spec (driver_self_specs[i]);
|
||||
|
||||
/* If not cross-compiling, look for executables in the standard
|
||||
places. */
|
||||
if (*cross_compile == '0')
|
||||
|
||||
Loading…
Reference in New Issue
Block a user