1 /* Common hooks for pdp11. 2 Copyright (C) 1994-2022 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 #include "config.h" 21 #include "system.h" 22 #include "coretypes.h" 23 #include "tm.h" 24 #include "common/common-target.h" 25 #include "common/common-target-def.h" 26 #include "opts.h" 27 #include "flags.h" 28 29 /* Implement TARGET_HANDLE_OPTION. */ 30 31 static bool pdp11_handle_option(struct gcc_options * opts,struct gcc_options * opts_set ATTRIBUTE_UNUSED,const struct cl_decoded_option * decoded,location_t loc ATTRIBUTE_UNUSED)32pdp11_handle_option (struct gcc_options *opts, 33 struct gcc_options *opts_set ATTRIBUTE_UNUSED, 34 const struct cl_decoded_option *decoded, 35 location_t loc ATTRIBUTE_UNUSED) 36 { 37 size_t code = decoded->opt_index; 38 39 switch (code) 40 { 41 case OPT_m10: 42 opts->x_target_flags &= ~(MASK_40 | MASK_45 | MASK_FPU | MASK_AC0 | MASK_SPLIT); 43 return true; 44 45 case OPT_m40: 46 opts->x_target_flags &= ~(MASK_45 | MASK_FPU | MASK_AC0 | MASK_SPLIT); 47 return true; 48 49 case OPT_mfpu: 50 opts->x_target_flags &= ~MASK_40; 51 opts->x_target_flags |= MASK_45; 52 return true; 53 54 case OPT_msoft_float: 55 opts->x_target_flags &= ~MASK_AC0; 56 return true; 57 58 case OPT_msplit: 59 opts->x_target_flags &= ~MASK_40; 60 opts->x_target_flags |= MASK_45; 61 return true; 62 63 case OPT_munix_asm: 64 case OPT_mgnu_asm: 65 targetm_common.have_named_sections = false; 66 return true; 67 68 case OPT_mdec_asm: 69 targetm_common.have_named_sections = true; 70 return true; 71 72 default: 73 return true; 74 } 75 } 76 77 /* Implement TARGET_OPTION_INIT_STRUCT. */ 78 79 static void pdp11_option_init_struct(struct gcc_options * opts)80pdp11_option_init_struct (struct gcc_options *opts) 81 { 82 opts->x_flag_finite_math_only = 0; 83 opts->x_flag_trapping_math = 0; 84 opts->x_flag_signaling_nans = 0; 85 } 86 87 #undef TARGET_DEFAULT_TARGET_FLAGS 88 #define TARGET_DEFAULT_TARGET_FLAGS \ 89 (MASK_FPU | MASK_45 | TARGET_UNIX_ASM_DEFAULT) 90 #undef TARGET_HANDLE_OPTION 91 #define TARGET_HANDLE_OPTION pdp11_handle_option 92 #undef TARGET_OPTION_INIT_STRUCT 93 #define TARGET_OPTION_INIT_STRUCT pdp11_option_init_struct 94 95 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; 96