1 /* Configuration file for ARM GNU/Linux EABI targets. 2 Copyright (C) 2004, 2005, 2006, 2007 3 Free Software Foundation, Inc. 4 Contributed by CodeSourcery, LLC 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 /* On EABI GNU/Linux, we want both the BPABI builtins and the 23 GNU/Linux builtins. */ 24 #undef TARGET_OS_CPP_BUILTINS 25 #define TARGET_OS_CPP_BUILTINS() \ 26 do \ 27 { \ 28 TARGET_BPABI_CPP_BUILTINS(); \ 29 LINUX_TARGET_OS_CPP_BUILTINS(); \ 30 } \ 31 while (false) 32 33 /* We default to a soft-float ABI so that binaries can run on all 34 target hardware. */ 35 #undef TARGET_DEFAULT_FLOAT_ABI 36 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT 37 38 /* We default to the "aapcs-linux" ABI so that enums are int-sized by 39 default. */ 40 #undef ARM_DEFAULT_ABI 41 #define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX 42 43 /* Default to armv5t so that thumb shared libraries work. 44 The ARM10TDMI core is the default for armv5t, so set 45 SUBTARGET_CPU_DEFAULT to achieve this. */ 46 #undef SUBTARGET_CPU_DEFAULT 47 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi 48 49 /* TARGET_BIG_ENDIAN_DEFAULT is set in 50 config.gcc for big endian configurations. */ 51 #undef TARGET_LINKER_EMULATION 52 #if TARGET_BIG_ENDIAN_DEFAULT 53 #define TARGET_LINKER_EMULATION "armelfb_linux_eabi" 54 #else 55 #define TARGET_LINKER_EMULATION "armelf_linux_eabi" 56 #endif 57 58 #undef SUBTARGET_EXTRA_LINK_SPEC 59 #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION 60 61 /* Use ld-linux.so.3 so that it will be possible to run "classic" 62 GNU/Linux binaries on an EABI system. */ 63 #undef GLIBC_DYNAMIC_LINKER 64 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3" 65 66 /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to 67 use the GNU/Linux version, not the generic BPABI version. */ 68 #undef LINK_SPEC 69 #define LINK_SPEC LINUX_TARGET_LINK_SPEC BE8_LINK_SPEC 70 71 /* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we 72 do not use -lfloat. */ 73 #undef LIBGCC_SPEC 74 75 /* Clear the instruction cache from `beg' to `end'. This is 76 implemented in lib1funcs.asm, so ensure an error if this definition 77 is used. */ 78 #undef CLEAR_INSN_CACHE 79 #define CLEAR_INSN_CACHE(BEG, END) not_used 80