| /* Definitions for ARM running Linux-based GNU systems using ELF |
| Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 2005, 2006 |
| Free Software Foundation, Inc. |
| Contributed by Philip Blundell <philb@gnu.org> |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 2, or (at your |
| option) any later version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; see the file COPYING. If not, write to |
| the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| /* elfos.h should have already been included. Now just override |
| any conflicting definitions and add any extras. */ |
| |
| /* Run-time Target Specification. */ |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr); |
| |
| #undef TARGET_DEFAULT_FLOAT_ABI |
| #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD |
| |
| #undef TARGET_DEFAULT |
| #define TARGET_DEFAULT (0) |
| |
| #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6 |
| |
| #define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p" |
| |
| #undef MULTILIB_DEFAULTS |
| #define MULTILIB_DEFAULTS \ |
| { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" } |
| |
| /* Now we define the strings used to build the spec file. */ |
| #undef LIB_SPEC |
| #define LIB_SPEC \ |
| "%{pthread:-lpthread} \ |
| %{shared:-lc} \ |
| %{!shared:%{profile:-lc_p}%{!profile:-lc}}" |
| |
| #define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc" |
| |
| #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" |
| |
| #define LINUX_TARGET_LINK_SPEC "%{h*} %{version:-v} \ |
| %{b} \ |
| %{static:-Bstatic} \ |
| %{shared:-shared} \ |
| %{symbolic:-Bsymbolic} \ |
| %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \ |
| -X \ |
| %{mbig-endian:-EB}" \ |
| SUBTARGET_EXTRA_LINK_SPEC |
| |
| #undef LINK_SPEC |
| #define LINK_SPEC LINUX_TARGET_LINK_SPEC |
| |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do \ |
| { \ |
| LINUX_TARGET_OS_CPP_BUILTINS(); \ |
| } \ |
| while (0) |
| |
| /* This is how we tell the assembler that two symbols have the same value. */ |
| #define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \ |
| do \ |
| { \ |
| assemble_name (FILE, NAME1); \ |
| fputs (" = ", FILE); \ |
| assemble_name (FILE, NAME2); \ |
| fputc ('\n', FILE); \ |
| } \ |
| while (0) |
| |
| /* NWFPE always understands FPA instructions. */ |
| #undef FPUTYPE_DEFAULT |
| #define FPUTYPE_DEFAULT FPUTYPE_FPA_EMU3 |
| |
| /* Call the function profiler with a given profile label. */ |
| #undef ARM_FUNCTION_PROFILER |
| #define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \ |
| { \ |
| fprintf (STREAM, "\tbl\tmcount%s\n", \ |
| (TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : ""); \ |
| } |
| |
| /* The GNU/Linux profiler clobbers the link register. Make sure the |
| prologue knows to save it. */ |
| #define PROFILE_HOOK(X) \ |
| emit_insn (gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, LR_REGNUM))) |
| |
| /* The GNU/Linux profiler needs a frame pointer. */ |
| #define SUBTARGET_FRAME_POINTER_REQUIRED current_function_profile |