1 /* Definitions for ARM running ucLinux using ELF 2 Copyright (C) 1999, 2001, 2004, 2005, 2007, 2008 3 Free Software Foundation, Inc. 4 Contributed by Philip Blundell <pb@nexus.co.uk> 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it 9 under the terms of the GNU General Public License as published 10 by the Free Software Foundation; either version 3, or (at your 11 option) any later version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 16 License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 /* We don't want a PLT. */ 23 #undef NEED_PLT_RELOC 24 #define NEED_PLT_RELOC 0 25 26 #undef TARGET_VERSION 27 #define TARGET_VERSION fputs (" (ARM/ELF ucLinux)", stderr); 28 29 #undef TARGET_DEFAULT 30 #define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE) 31 32 /* NOTE: The remaining definitions in this file are needed because uclinux 33 does not use config/linux.h. */ 34 35 /* Add GNU/Linux builtins. */ 36 #undef TARGET_OS_CPP_BUILTINS 37 #define TARGET_OS_CPP_BUILTINS() \ 38 do \ 39 { \ 40 builtin_define ("__uClinux__"); \ 41 builtin_define ("__gnu_linux__"); \ 42 builtin_define_std ("linux"); \ 43 builtin_define_std ("unix"); \ 44 builtin_assert ("system=linux"); \ 45 builtin_assert ("system=unix"); \ 46 builtin_assert ("system=posix"); \ 47 } \ 48 while (false) 49 50 /* Do not assume anything about header files. */ 51 #define NO_IMPLICIT_EXTERN_C 52 53 /* The GNU C++ standard library requires that these macros be defined. */ 54 #undef CPLUSPLUS_CPP_SPEC 55 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" 56 57 #undef SUBTARGET_EXTRA_LINK_SPEC 58 #define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux" 59 60 /* Now we define the strings used to build the spec file. */ 61 #undef STARTFILE_SPEC 62 #define STARTFILE_SPEC "crt1%O%s crti%O%s crtbegin%O%s" 63 64 #undef ENDFILE_SPEC 65 #define ENDFILE_SPEC "crtend%O%s crtn%O%s" 66 67 #undef CC1_SPEC 68 #define CC1_SPEC "%{profile:-p}" 69 70 #undef LINK_GCC_C_SEQUENCE_SPEC 71 #define LINK_GCC_C_SEQUENCE_SPEC \ 72 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" 73 74 /* Use --as-needed -lgcc_s for eh support. */ 75 #ifdef HAVE_LD_AS_NEEDED 76 #define USE_LD_AS_NEEDED 1 77 #endif 78 79 #undef LINK_SPEC 80 #define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -X -elf2flt" 81 82 #undef LIB_SPEC 83 #define LIB_SPEC \ 84 "%{pthread:-lpthread} \ 85 %{shared:-lc} \ 86 %{!shared:%{profile:-lc_p}%{!profile:-lc}}" 87 88 #define TARGET_DEFAULT_WORD_RELOCATIONS 1 89