projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 73a4d10b R |
1 | /* Definitions of target machine for gcc for Super-H using sh-superh-elf. |
| 2 | Copyright (C) 2001 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GNU CC. | |
| 5 | ||
| 6 | GNU CC 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 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU CC 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 GNU CC; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | ||
| 22 | /* This header file is used when the vendor name is set to 'superh'. | |
| 23 | It configures the compiler for SH4 only and switches the default | |
| 24 | endianess to little (although big endian is still available). | |
| 25 | It also configures the spec file to the default board configuration | |
| 26 | but in such a way that it can be overriden by a boardspecs file | |
| 27 | (using the -specs= option). This file is expected to disable the | |
| 28 | defaults and provide options --defsym _start and --defsym _stack | |
| 29 | which are required by the SuperH configuration of GNU ld. | |
| 30 | ||
| 31 | This file is intended to overide sh.h */ | |
| 32 | ||
| 33 | ||
| 34 | #ifndef _SUPERH_H | |
| 35 | #define _SUPERH_H | |
| 36 | #endif | |
| 37 | ||
| 38 | ||
| 39 | #undef TARGET_VERSION | |
| 40 | #define TARGET_VERSION fprintf (stderr, " (SuperH SH special %s)", __DATE__); | |
| 41 | ||
| 42 | ||
| 43 | /* We override TARGET_PROCESSOR_SWITCHES in order to remove all the unrequired cpu options | |
| 44 | and add options for all the SuperH CPU variants: | |
| 45 | -m4-100 is an alias for -m4. | |
| 46 | -m4-200 is an alias for -m4. | |
| 47 | -m4-400 is an alias for -m4-nofpu and passes -isa=sh4-nommu-nofpu to the assembler. | |
| 48 | -m4-500 is an alias for -m4-nofpu and passes -isa=sh4-nofpu to the assembler. */ | |
| 49 | #undef TARGET_PROCESSOR_SWITCHES | |
| 50 | #define TARGET_PROCESSOR_SWITCHES \ | |
| 51 | {"4-500", TARGET_NONE, "SH4 500 series (FPU-less)" }, \ | |
| 52 | {"4-500", SELECT_SH4_NOFPU, "" }, \ | |
| 53 | {"4-400", TARGET_NONE, "SH4 400 series (MMU/FPU-less)" }, \ | |
| 54 | {"4-400", SELECT_SH4_NOFPU, "" }, \ | |
| 55 | {"4-200-single-only", TARGET_NONE, "SH4 200 series with double = float (SH3e ABI)" }, \ | |
| 56 | {"4-200-single-only", SELECT_SH4_SINGLE_ONLY, "" }, \ | |
| 57 | {"4-200-single", TARGET_NONE, "SH4 200 series with single precision pervading" }, \ | |
| 58 | {"4-200-single", SELECT_SH4_SINGLE, "" }, \ | |
| 59 | {"4-200-nofpu", TARGET_NONE, "SH4 200 series using soft floating point" }, \ | |
| 60 | {"4-200-nofpu", SELECT_SH4_NOFPU, "" }, \ | |
| 61 | {"4-200", TARGET_NONE, "SH4 200 series" }, \ | |
| 62 | {"4-200", SELECT_SH4_NOFPU, "" }, \ | |
| 63 | {"4-100-single-only", TARGET_NONE, "SH4 100 series with double = float (SH3e ABI)" }, \ | |
| 64 | {"4-100-single-only", SELECT_SH4_SINGLE_ONLY, "" }, \ | |
| 65 | {"4-100-single", TARGET_NONE, "SH4 100 series with single precision pervading" }, \ | |
| 66 | {"4-100-single", SELECT_SH4_SINGLE, "" }, \ | |
| 67 | {"4-100-nofpu", TARGET_NONE, "SH4 100 series using soft floating point" }, \ | |
| 68 | {"4-100-nofpu", SELECT_SH4_NOFPU, "" }, \ | |
| 69 | {"4-100", TARGET_NONE, "SH4 100 series" }, \ | |
| 70 | {"4-100", SELECT_SH4_NOFPU, "" }, \ | |
| 71 | {"4-single-only", TARGET_NONE, "Generic SH4 with double = float (SH3e ABI)" }, \ | |
| 72 | {"4-single-only", SELECT_SH4_SINGLE_ONLY, "" }, \ | |
| 73 | {"4-single", TARGET_NONE, "Generic SH4 with single precision pervading" }, \ | |
| 74 | {"4-single", SELECT_SH4_SINGLE, "" }, \ | |
| 75 | {"4-nofpu", TARGET_NONE, "Generic SH4 using soft floating point" }, \ | |
| 76 | {"4-nofpu", SELECT_SH4_NOFPU, "" }, \ | |
| 77 | {"4", TARGET_NONE, "Generic SH4 (default)" }, \ | |
| 78 | {"4", SELECT_SH4, "" } | |
| 79 | ||
| 80 | ||
| 81 | /* Provide the -mboard= option used by the boardspecs file */ | |
| 82 | #undef SUBTARGET_OPTIONS | |
| 83 | #define SUBTARGET_OPTIONS \ | |
| 84 | { "board=", &boardtype, "Board name [and momory region].", 0 }, \ | |
| 85 | { "runtime=", &osruntime, "Runtime name.", 0 }, \ | |
| 86 | ||
| 87 | /* These are required by the mboard= option and runtime= option | |
| 88 | and are defined in sh.c but are not used anywhere */ | |
| 89 | extern const char * boardtype; | |
| 90 | extern const char * osruntime; | |
| 91 | ||
| 92 | ||
| 93 | /* Override the linker spec strings to use the new emultation | |
| 94 | The specstrings are concatenated as follows | |
| 95 | LINK_EMUL_PREFIX.(''|'32'|'64'|LINK_DEFAULT_CPU_EMUL).SUBTARGET_LINK_EMUL_SUFFIX | |
| 96 | */ | |
| 97 | #undef LINK_EMUL_PREFIX | |
| 98 | #undef SUBTARGET_LINK_EMUL_SUFFIX | |
| 99 | ||
| 100 | #define LINK_EMUL_PREFIX "superh" | |
| 101 | #define SUBTARGET_LINK_EMUL_SUFFIX "" | |
| 102 | ||
| 103 | /* Add the SUBTARGET_LINK_SPEC to add the board and runtime support and | |
| 104 | change the endianness */ | |
| 105 | #undef SUBTARGET_LINK_SPEC | |
| 106 | #if TARGET_ENDIAN_DEFAULT == LITTLE_ENDIAN_BIT | |
| 107 | #define SUBTARGET_LINK_SPEC "%(board_link) %(ldruntime) %{ml|!mb:-EL}%{mb:-EB}" | |
| 108 | #else | |
| 109 | #define SUBTARGET_LINK_SPEC "%(board_link) %(ldruntime) %{ml:-EL}%{mb|!ml:-EB}" | |
| 110 | #endif | |
| 111 | ||
| 112 | ||
| 113 | /* This is used by the link spec if the boardspecs file is not used (for whatever reason). | |
| 114 | If the boardspecs file overrides this then an alternative can be used. */ | |
| 115 | #undef SUBTARGET_EXTRA_SPECS | |
| 116 | #define SUBTARGET_EXTRA_SPECS \ | |
| 117 | { "board_link", "--defsym _start=0x1000 --defsym _stack=0x30000" }, \ | |
| 118 | { "asruntime", "" }, \ | |
| 119 | { "cppruntime", "-D__GDB_SIM__" }, \ | |
| 120 | { "cc1runtime", "" }, \ | |
| 121 | { "ldruntime", "" }, \ | |
| 122 | { "libruntime", "-lc -lgloss" } | |
| 123 | ||
| 124 | ||
| 125 | /* Set the SUBTARGET_CPP_SPEC to define __EMBEDDED_CROSS__ which has an effect | |
| 126 | on newlib and provide the runtime support */ | |
| 127 | #undef SUBTARGET_CPP_SPEC | |
| 128 | #define SUBTARGET_CPP_SPEC \ | |
| 129 | "-D__EMBEDDED_CROSS__ %{m4-100*:-D__SH4_100__} %{m4-200*:-D__SH4_200__} %{m4-400:-D__SH4_400__} %{m4-500:-D__SH4_500__} \ | |
| 130 | %(cppruntime)" | |
| 131 | ||
| 132 | /* Override the SUBTARGET_ASM_SPEC to add the runtime support */ | |
| 133 | #undef SUBTARGET_ASM_SPEC | |
| 134 | #define SUBTARGET_ASM_SPEC "%{m4-100*|m4-200*:-isa=sh4} %{m4-400:-isa=sh4-nommu-nofpu} %{m4-500:-isa=sh4-nofpu} %(asruntime)" | |
| 135 | ||
| 136 | /* Override the SUBTARGET_ASM_RELAX_SPEC so it doesn't interfere with the | |
| 137 | runtime support by adding -isa=sh4 in the wrong place. */ | |
| 138 | #undef SUBTARGET_ASM_RELAX_SPEC | |
| 139 | #define SUBTARGET_ASM_RELAX_SPEC "%{!m4-100*:%{!m4-200*:%{!m4-400:%{!m4-500:-isa=sh4}}}}" | |
| 140 | ||
| 141 | /* Create the CC1_SPEC to add the runtime support */ | |
| 142 | #undef CC1_SPEC | |
| 143 | #define CC1_SPEC "%(cc1runtime)" | |
| 144 | ||
| 145 | #undef CC1PLUS_SPEC | |
| 146 | #define CC1PLUS_SPEC "%(cc1runtime)" | |
| 147 | ||
| 148 | ||
| 149 | /* Override the LIB_SPEC to add the runtime support */ | |
| 150 | #undef LIB_SPEC | |
| 151 | #define LIB_SPEC "%{!shared:%{!symbolic:%(libruntime) -lc}} %{pg:-lprofile -lc}" |