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Diffstat (limited to 'gcc/config/mips/sde.h')
| -rw-r--r-- | gcc/config/mips/sde.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/gcc/config/mips/sde.h b/gcc/config/mips/sde.h new file mode 100644 index 000000000..7194c1e54 --- /dev/null +++ b/gcc/config/mips/sde.h @@ -0,0 +1,135 @@ +/* Definitions of target machine for GNU compiler. + MIPS SDE version. + Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011 + Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 3, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#undef DRIVER_SELF_SPECS +#define DRIVER_SELF_SPECS \ + /* Make sure a -mips option is present. This helps us to pick \ + the right multilib, and also makes the later specs easier \ + to write. */ \ + MIPS_ISA_LEVEL_SPEC, \ + \ + /* Infer the default float setting from -march. */ \ + MIPS_ARCH_FLOAT_SPEC, \ + \ + /* If no ABI option is specified, infer one from the ISA level \ + or -mgp setting. */ \ + "%{!mabi=*: %{" MIPS_32BIT_OPTION_SPEC ": -mabi=32;: -mabi=n32}}", \ + \ + /* Remove a redundant -mfp64 for -mabi=n32; we want the !mfp64 \ + multilibs. There's no need to check whether the architecture \ + is 64-bit; cc1 will complain if it isn't. */ \ + "%{mabi=n32: %<mfp64}", \ + \ + /* Make sure that an endian option is always present. This makes \ + things like LINK_SPEC easier to write. */ \ + "%{!EB:%{!EL:%(endian_spec)}}", \ + \ + /* Configuration-independent MIPS rules. */ \ + BASE_DRIVER_SELF_SPECS + +/* Use trap rather than break for all but MIPS I ISA. Force -no-mips16, + so that MIPS16 assembler code requires an explicit ".set mips16". + Very little hand-written MIPS16 assembler exists, and some build + systems expect code to be assembled as non-MIPS16 even if the + prevailing compiler flags select -mips16. */ +#undef SUBTARGET_ASM_SPEC +#define SUBTARGET_ASM_SPEC "\ +%{!mips1:--trap} \ +%{mips16:-no-mips16}" + +#undef LINK_SPEC +#define LINK_SPEC "\ +%(endian_spec) \ +%{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32*} %{mips64*} \ +%{shared} \ +%{mabi=n32:-melf32%{EB:b}%{EL:l}tsmipn32} \ +%{mabi=64:-melf64%{EB:b}%{EL:l}tsmip} \ +%{mabi=32:-melf32%{EB:b}%{EL:l}tsmip}" + +#undef DEFAULT_SIGNED_CHAR +#define DEFAULT_SIGNED_CHAR 0 + +/* SDE-MIPS won't ever support SDB debugging info. */ +#undef SDB_DEBUGGING_INFO + +/* Describe how we implement __builtin_eh_return. */ + +/* At the moment, nothing appears to use more than 2 EH data registers. + The chosen registers must not clash with the return register ($2), + EH_RETURN_STACKADJ ($3), or MIPS_EPILOGUE_TEMP ($5), and they must + be general MIPS16 registers. Pick $6 and $7. */ +#undef EH_RETURN_DATA_REGNO +#define EH_RETURN_DATA_REGNO(N) \ + ((N) < 2 ? 7 - (N) : INVALID_REGNUM) + +/* Use $5 as a temporary for both MIPS16 and non-MIPS16. */ +#undef MIPS_EPILOGUE_TEMP_REGNUM +#define MIPS_EPILOGUE_TEMP_REGNUM \ + (cfun->machine->interrupt_handler_p ? K0_REG_NUM : GP_REG_FIRST + 5) + +/* Using long will always be right for size_t and ptrdiff_t, since + sizeof(long) must equal sizeof(void *), following from the setting + of the -mlong64 option. */ +#undef SIZE_TYPE +#define SIZE_TYPE "long unsigned int" +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "long int" + +/* Use standard ELF-style local labels (not '$' as on early Irix). */ +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + +/* Use periods rather than dollar signs in special g++ assembler names. */ +#define NO_DOLLAR_IN_LABEL + +/* Attach a special .ident directive to the end of the file to identify + the version of GCC which compiled this code. */ +#undef IDENT_ASM_OP +#define IDENT_ASM_OP "\t.ident\t" + +/* Output #ident string into the ELF .comment section, so it doesn't + form part of the load image, and so that it can be stripped. */ +#undef ASM_OUTPUT_IDENT +#define ASM_OUTPUT_IDENT(STREAM, STRING) \ + fprintf (STREAM, "%s\"%s\"\n", IDENT_ASM_OP, STRING); + +/* Currently we don't support 128bit long doubles, so for now we force + n32 to be 64bit. */ +#undef LONG_DOUBLE_TYPE_SIZE +#define LONG_DOUBLE_TYPE_SIZE 64 + +#ifdef IN_LIBGCC2 +#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 +#endif + +/* Force all .init and .fini entries to be 32-bit, not mips16, so that + in a mixed environment they are all the same mode. The crti.asm and + crtn.asm files will also be compiled as 32-bit due to the + -no-mips16 flag in SUBTARGET_ASM_SPEC above. */ +#undef CRT_CALL_STATIC_FUNCTION +#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ + asm (SECTION_OP "\n\ + .set push\n\ + .set nomips16\n\ + jal " USER_LABEL_PREFIX #FUNC "\n\ + .set pop\n\ + " TEXT_SECTION_ASM_OP); |