1 /* Definitions of target machine for GNU compiler. System/370 version. 2 Copyright (C) 1989, 1993, 1995, 1996, 1997 Free Software Foundation, Inc. 3 Contributed by Jan Stein (jan@cd.chalmers.se). 4 Modified for Linux/390 by Linas Vepstas (linas@linas.org) 5 6 This file is part of GNU CC. 7 8 GNU CC is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 13 GNU CC is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GNU CC; see the file COPYING. If not, write to 20 the Free Software Foundation, 59 Temple Place - Suite 330, 21 Boston, MA 02111-1307, USA. */ 22 23 24 #define TARGET_VERSION fprintf (stderr, " (i370 GNU/Linux with ELF)"); 25 26 /* Specify that we're generating code for a Linux port to 370 */ 27 28 #define TARGET_ELF_ABI 29 #define LINUX_DEFAULT_ELF 30 31 /* Include system common definitions */ 32 /* TODO: convert include to ${tm_file} list in config.gcc. */ 33 #include "i370/i370.h" 34 35 /* Target OS preprocessor built-ins. */ 36 #define TARGET_OS_CPP_BUILTINS() \ 37 do { \ 38 builtin_define_std ("unix"); \ 39 builtin_define_std ("linux"); \ 40 builtin_define ("__gnu_linux__"); \ 41 builtin_define ("__ELF__"); \ 42 builtin_assert ("system=posix"); \ 43 } while (0) 44 45 /* Options for this target machine. */ 46 47 #define LIBGCC_SPEC "libgcc.a%s" 48 49 #ifdef SOME_FUTURE_DAY 50 51 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_sysv) %(cpp_endian_big) \ 52 %{mcall-linux: %(cpp_os_linux) } \ 53 %{!mcall-linux: %(cpp_os_default) }" 54 55 #define LIB_SPEC "\ 56 %{mcall-linux: %(lib_linux) } \ 57 %{!mcall-linux:%(lib_default) }" 58 59 #define STARTFILE_SPEC "\ 60 %{mcall-linux: %(startfile_linux) } \ 61 %{!mcall-linux: %(startfile_default) }" 62 63 #define ENDFILE_SPEC "\ 64 %{mcall-linux: %(endfile_linux) } \ 65 %{!mcall-linux: %(endfile_default) }" 66 67 /* GNU/Linux support. */ 68 #ifndef LIB_LINUX_SPEC 69 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } %{!mnewlib: -lc }" 70 #endif 71 72 #ifndef STARTFILE_LINUX_SPEC 73 #define STARTFILE_LINUX_SPEC "\ 74 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \ 75 %{mnewlib: ecrti.o%s} \ 76 %{!mnewlib: crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" 77 #endif 78 79 #ifndef ENDFILE_LINUX_SPEC 80 #define ENDFILE_LINUX_SPEC "\ 81 %{mnewlib: ecrtn.o%s} \ 82 %{!mnewlib: %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s}" 83 #endif 84 85 #ifndef LINK_START_LINUX_SPEC 86 #define LINK_START_LINUX_SPEC "-Ttext 0x10000" 87 #endif 88 89 #ifndef LINK_OS_LINUX_SPEC 90 #define LINK_OS_LINUX_SPEC "" 91 #endif 92 93 #ifndef CPP_OS_LINUX_SPEC 94 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \ 95 %{!ansi: -Dunix -Dlinux } \ 96 -Asystem=unix -Asystem=linux" 97 #endif 98 99 #ifndef CPP_OS_LINUX_SPEC 100 #define CPP_OS_LINUX_SPEC "" 101 #endif 102 103 104 /* Define any extra SPECS that the compiler needs to generate. */ 105 #undef SUBTARGET_EXTRA_SPECS 106 #define SUBTARGET_EXTRA_SPECS \ 107 { "lib_linux", LIB_LINUX_SPEC }, \ 108 { "lib_default", LIB_DEFAULT_SPEC }, \ 109 { "startfile_linux", STARTFILE_LINUX_SPEC }, \ 110 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \ 111 { "endfile_linux", ENDFILE_LINUX_SPEC }, \ 112 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \ 113 { "link_shlib", LINK_SHLIB_SPEC }, \ 114 { "link_target", LINK_TARGET_SPEC }, \ 115 { "link_start", LINK_START_SPEC }, \ 116 { "link_start_linux", LINK_START_LINUX_SPEC }, \ 117 { "link_os", LINK_OS_SPEC }, \ 118 { "link_os_linux", LINK_OS_LINUX_SPEC }, \ 119 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \ 120 { "cpp_endian_big", CPP_ENDIAN_BIG_SPEC }, \ 121 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \ 122 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, 123 124 #endif /* SOME_FUTURE_DAY */ 125