1 /* Definitions of target machine for GNU compiler. 2 MIPS SDE version, for use with the SDE C library rather than newlib. 3 Copyright (C) 2007-2017 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #define TARGET_OS_CPP_BUILTINS() \ 22 do \ 23 { \ 24 builtin_assert ("system=sde"); \ 25 builtin_assert ("system=posix"); \ 26 builtin_define ("__SDE_MIPS__"); \ 27 \ 28 /* Deprecated: use __mips_isa_rev >= 2. */ \ 29 if (ISA_MIPS32R2) \ 30 builtin_define ("__mipsr2"); \ 31 \ 32 /* Deprecated: use __mips_fpr == 64. */ \ 33 if (TARGET_FLOAT64) \ 34 builtin_define ("__mipsfp64"); \ 35 \ 36 if (TARGET_NO_FLOAT) \ 37 builtin_define ("__NO_FLOAT"); \ 38 else if (TARGET_SOFT_FLOAT_ABI) \ 39 builtin_define ("__SOFT_FLOAT"); \ 40 else if (TARGET_SINGLE_FLOAT) \ 41 builtin_define ("__SINGLE_FLOAT"); \ 42 \ 43 if (TARGET_BIG_ENDIAN) \ 44 { \ 45 builtin_assert ("endian=big"); \ 46 builtin_assert ("cpu=mipseb"); \ 47 } \ 48 else \ 49 { \ 50 builtin_assert ("endian=little"); \ 51 builtin_assert ("cpu=mipsel"); \ 52 } \ 53 } \ 54 while (0) 55 56 /* For __clear_cache in libgcc2.c. */ 57 #ifdef IN_LIBGCC2 58 extern void mips_sync_icache (void *beg, unsigned long len); 59 #undef CLEAR_INSN_CACHE 60 #define CLEAR_INSN_CACHE(beg, end) \ 61 mips_sync_icache (beg, end - beg) 62 #endif 63 64 /* For mips_cache_flush_func in mips.opt. */ 65 #undef CACHE_FLUSH_FUNC 66 #define CACHE_FLUSH_FUNC "mips_sync_icache" 67 68 /* For inline code which needs to sync the icache and dcache, 69 noting that the SDE library takes arguments (address, size). */ 70 #undef MIPS_ICACHE_SYNC 71 #define MIPS_ICACHE_SYNC(ADDR, SIZE) \ 72 emit_library_call (gen_rtx_SYMBOL_REF (Pmode, mips_cache_flush_func), \ 73 LCT_NORMAL, VOIDmode, 2, ADDR, Pmode, \ 74 SIZE, TYPE_MODE (sizetype)) 75 76 /* This version of _mcount does not pop 2 words from the stack. */ 77 #undef FUNCTION_PROFILER 78 #define FUNCTION_PROFILER(FILE, LABELNO) \ 79 { \ 80 mips_push_asm_switch (&mips_noat); \ 81 /* _mcount treats $2 as the static chain register. */ \ 82 if (cfun->static_chain_decl != NULL) \ 83 fprintf (FILE, "\tmove\t%s,%s\n", reg_names[2], \ 84 reg_names[STATIC_CHAIN_REGNUM]); \ 85 /* MIPS16 code passes saved $ra in $v1 instead of $at. */ \ 86 fprintf (FILE, "\tmove\t%s,%s\n", \ 87 reg_names[GP_REG_FIRST + (TARGET_MIPS16 ? 3 : 1)], \ 88 reg_names[RETURN_ADDR_REGNUM]); \ 89 fprintf (FILE, "\tjal\t_mcount\n"); \ 90 mips_pop_asm_switch (&mips_noat); \ 91 /* _mcount treats $2 as the static chain register. */ \ 92 if (cfun->static_chain_decl != NULL) \ 93 fprintf (FILE, "\tmove\t%s,%s\n", reg_names[STATIC_CHAIN_REGNUM], \ 94 reg_names[2]); \ 95 } 96 97 /* ...nor does the call sequence preserve $31. */ 98 #undef MIPS_SAVE_REG_FOR_PROFILING_P 99 #define MIPS_SAVE_REG_FOR_PROFILING_P(REGNO) ((REGNO) == RETURN_ADDR_REGNUM) 100 101 /* Compile in support for the -mno-float option. */ 102 #define TARGET_SUPPORTS_NO_FLOAT 1 103