/* Definitions of target machine for GNU compiler.
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/* Definitions of target machine for GNU compiler.
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MIPS SDE version.
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MIPS SDE version.
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Copyright (C) 2003, 2004, 2007, 2008, 2009
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Copyright (C) 2003, 2004, 2007, 2008, 2009
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GCC.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#undef DRIVER_SELF_SPECS
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#undef DRIVER_SELF_SPECS
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#define DRIVER_SELF_SPECS \
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#define DRIVER_SELF_SPECS \
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/* Make sure a -mips option is present. This helps us to pick \
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/* Make sure a -mips option is present. This helps us to pick \
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the right multilib, and also makes the later specs easier \
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the right multilib, and also makes the later specs easier \
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to write. */ \
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to write. */ \
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MIPS_ISA_LEVEL_SPEC, \
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MIPS_ISA_LEVEL_SPEC, \
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\
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\
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/* Infer the default float setting from -march. */ \
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/* Infer the default float setting from -march. */ \
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MIPS_ARCH_FLOAT_SPEC, \
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MIPS_ARCH_FLOAT_SPEC, \
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\
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\
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/* If no ABI option is specified, infer one from the ISA level \
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/* If no ABI option is specified, infer one from the ISA level \
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or -mgp setting. */ \
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or -mgp setting. */ \
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"%{!mabi=*: %{" MIPS_32BIT_OPTION_SPEC ": -mabi=32;: -mabi=n32}}", \
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"%{!mabi=*: %{" MIPS_32BIT_OPTION_SPEC ": -mabi=32;: -mabi=n32}}", \
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\
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\
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/* Remove a redundant -mfp64 for -mabi=n32; we want the !mfp64 \
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/* Remove a redundant -mfp64 for -mabi=n32; we want the !mfp64 \
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multilibs. There's no need to check whether the architecture \
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multilibs. There's no need to check whether the architecture \
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is 64-bit; cc1 will complain if it isn't. */ \
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is 64-bit; cc1 will complain if it isn't. */ \
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"%{mabi=n32: %<mfp64}", \
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"%{mabi=n32: %<mfp64}", \
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\
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\
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/* Make sure that an endian option is always present. This makes \
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/* Make sure that an endian option is always present. This makes \
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things like LINK_SPEC easier to write. */ \
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things like LINK_SPEC easier to write. */ \
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"%{!EB:%{!EL:%(endian_spec)}}", \
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"%{!EB:%{!EL:%(endian_spec)}}", \
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\
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\
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/* -mcode-xonly is a traditional alias for -mcode-readable=pcrel and \
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/* -mcode-xonly is a traditional alias for -mcode-readable=pcrel and \
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-mno-data-in-code is a traditional alias for -mcode-readable=no. \
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-mno-data-in-code is a traditional alias for -mcode-readable=no. \
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The latter trumps the former. */ \
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The latter trumps the former. */ \
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"%{mno-data-in-code: -mcode-readable=no}", \
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"%{mno-data-in-code: -mcode-readable=no}", \
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"%{!mcode-readable=no: %{mcode-xonly: -mcode-readable=pcrel}}", \
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"%{!mcode-readable=no: %{mcode-xonly: -mcode-readable=pcrel}}", \
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"%<mno-data-in-code %<mcode-xonly", \
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"%<mno-data-in-code %<mcode-xonly", \
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\
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\
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/* Configuration-independent MIPS rules. */ \
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/* Configuration-independent MIPS rules. */ \
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BASE_DRIVER_SELF_SPECS
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BASE_DRIVER_SELF_SPECS
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/* Use trap rather than break for all but MIPS I ISA. Force -no-mips16,
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/* Use trap rather than break for all but MIPS I ISA. Force -no-mips16,
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so that MIPS16 assembler code requires an explicit ".set mips16".
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so that MIPS16 assembler code requires an explicit ".set mips16".
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Very little hand-written MIPS16 assembler exists, and some build
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Very little hand-written MIPS16 assembler exists, and some build
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systems expect code to be assembled as non-MIPS16 even if the
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systems expect code to be assembled as non-MIPS16 even if the
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prevailing compiler flags select -mips16. */
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prevailing compiler flags select -mips16. */
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#undef SUBTARGET_ASM_SPEC
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#undef SUBTARGET_ASM_SPEC
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#define SUBTARGET_ASM_SPEC "\
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#define SUBTARGET_ASM_SPEC "\
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%{!mips1:--trap} \
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%{!mips1:--trap} \
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%{mips16:-no-mips16}"
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%{mips16:-no-mips16}"
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#undef LINK_SPEC
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#undef LINK_SPEC
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#define LINK_SPEC "\
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#define LINK_SPEC "\
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%(endian_spec) \
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%(endian_spec) \
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%{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32*} %{mips64*} \
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%{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32*} %{mips64*} \
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%{bestGnum} \
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%{bestGnum} \
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%{shared} %{non_shared} %{call_shared} \
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%{shared} %{non_shared} %{call_shared} \
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%{mabi=n32:-melf32%{EB:b}%{EL:l}tsmipn32} \
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%{mabi=n32:-melf32%{EB:b}%{EL:l}tsmipn32} \
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%{mabi=64:-melf64%{EB:b}%{EL:l}tsmip} \
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%{mabi=64:-melf64%{EB:b}%{EL:l}tsmip} \
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%{mabi=32:-melf32%{EB:b}%{EL:l}tsmip}"
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%{mabi=32:-melf32%{EB:b}%{EL:l}tsmip}"
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#undef DEFAULT_SIGNED_CHAR
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#undef DEFAULT_SIGNED_CHAR
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#define DEFAULT_SIGNED_CHAR 0
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#define DEFAULT_SIGNED_CHAR 0
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/* SDE-MIPS won't ever support SDB debugging info. */
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/* SDE-MIPS won't ever support SDB debugging info. */
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#undef SDB_DEBUGGING_INFO
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#undef SDB_DEBUGGING_INFO
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/* Describe how we implement __builtin_eh_return. */
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/* Describe how we implement __builtin_eh_return. */
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/* At the moment, nothing appears to use more than 2 EH data registers.
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/* At the moment, nothing appears to use more than 2 EH data registers.
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The chosen registers must not clash with the return register ($2),
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The chosen registers must not clash with the return register ($2),
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EH_RETURN_STACKADJ ($3), or MIPS_EPILOGUE_TEMP ($5), and they must
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EH_RETURN_STACKADJ ($3), or MIPS_EPILOGUE_TEMP ($5), and they must
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be general MIPS16 registers. Pick $6 and $7. */
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be general MIPS16 registers. Pick $6 and $7. */
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#undef EH_RETURN_DATA_REGNO
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#undef EH_RETURN_DATA_REGNO
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#define EH_RETURN_DATA_REGNO(N) \
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#define EH_RETURN_DATA_REGNO(N) \
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((N) < 2 ? 7 - (N) : INVALID_REGNUM)
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((N) < 2 ? 7 - (N) : INVALID_REGNUM)
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/* Use $5 as a temporary for both MIPS16 and non-MIPS16. */
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/* Use $5 as a temporary for both MIPS16 and non-MIPS16. */
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#undef MIPS_EPILOGUE_TEMP_REGNUM
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#undef MIPS_EPILOGUE_TEMP_REGNUM
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#define MIPS_EPILOGUE_TEMP_REGNUM \
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#define MIPS_EPILOGUE_TEMP_REGNUM \
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(cfun->machine->interrupt_handler_p ? K0_REG_NUM : GP_REG_FIRST + 5)
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(cfun->machine->interrupt_handler_p ? K0_REG_NUM : GP_REG_FIRST + 5)
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/* Using long will always be right for size_t and ptrdiff_t, since
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/* Using long will always be right for size_t and ptrdiff_t, since
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sizeof(long) must equal sizeof(void *), following from the setting
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sizeof(long) must equal sizeof(void *), following from the setting
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of the -mlong64 option. */
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of the -mlong64 option. */
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#undef SIZE_TYPE
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#undef SIZE_TYPE
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#define SIZE_TYPE "long unsigned int"
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#define SIZE_TYPE "long unsigned int"
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#undef PTRDIFF_TYPE
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "long int"
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#define PTRDIFF_TYPE "long int"
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/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
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/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
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#define HANDLE_PRAGMA_PACK_PUSH_POP 1
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#define HANDLE_PRAGMA_PACK_PUSH_POP 1
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/* Use standard ELF-style local labels (not '$' as on early Irix). */
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/* Use standard ELF-style local labels (not '$' as on early Irix). */
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#undef LOCAL_LABEL_PREFIX
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#undef LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX "."
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#define LOCAL_LABEL_PREFIX "."
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/* Use periods rather than dollar signs in special g++ assembler names. */
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/* Use periods rather than dollar signs in special g++ assembler names. */
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#define NO_DOLLAR_IN_LABEL
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#define NO_DOLLAR_IN_LABEL
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/* Attach a special .ident directive to the end of the file to identify
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/* Attach a special .ident directive to the end of the file to identify
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the version of GCC which compiled this code. */
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the version of GCC which compiled this code. */
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#undef IDENT_ASM_OP
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#undef IDENT_ASM_OP
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#define IDENT_ASM_OP "\t.ident\t"
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#define IDENT_ASM_OP "\t.ident\t"
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/* Output #ident string into the ELF .comment section, so it doesn't
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/* Output #ident string into the ELF .comment section, so it doesn't
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form part of the load image, and so that it can be stripped. */
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form part of the load image, and so that it can be stripped. */
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#undef ASM_OUTPUT_IDENT
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#undef ASM_OUTPUT_IDENT
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#define ASM_OUTPUT_IDENT(STREAM, STRING) \
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#define ASM_OUTPUT_IDENT(STREAM, STRING) \
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fprintf (STREAM, "%s\"%s\"\n", IDENT_ASM_OP, STRING);
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fprintf (STREAM, "%s\"%s\"\n", IDENT_ASM_OP, STRING);
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/* Currently we don't support 128bit long doubles, so for now we force
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/* Currently we don't support 128bit long doubles, so for now we force
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n32 to be 64bit. */
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n32 to be 64bit. */
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#undef LONG_DOUBLE_TYPE_SIZE
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#undef LONG_DOUBLE_TYPE_SIZE
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#define LONG_DOUBLE_TYPE_SIZE 64
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#define LONG_DOUBLE_TYPE_SIZE 64
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#ifdef IN_LIBGCC2
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#ifdef IN_LIBGCC2
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#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
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#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
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#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
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#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
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#endif
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#endif
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/* Force all .init and .fini entries to be 32-bit, not mips16, so that
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/* Force all .init and .fini entries to be 32-bit, not mips16, so that
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in a mixed environment they are all the same mode. The crti.asm and
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in a mixed environment they are all the same mode. The crti.asm and
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crtn.asm files will also be compiled as 32-bit due to the
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crtn.asm files will also be compiled as 32-bit due to the
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-no-mips16 flag in SUBTARGET_ASM_SPEC above. */
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-no-mips16 flag in SUBTARGET_ASM_SPEC above. */
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#undef CRT_CALL_STATIC_FUNCTION
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#undef CRT_CALL_STATIC_FUNCTION
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#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
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#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
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asm (SECTION_OP "\n\
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asm (SECTION_OP "\n\
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.set push\n\
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.set push\n\
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.set nomips16\n\
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.set nomips16\n\
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jal " USER_LABEL_PREFIX #FUNC "\n\
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jal " USER_LABEL_PREFIX #FUNC "\n\
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.set pop\n\
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.set pop\n\
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" TEXT_SECTION_ASM_OP);
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" TEXT_SECTION_ASM_OP);
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