/* Definitions for ARM running Linux-based GNU systems using ELF Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. Contributed by Philip Blundell <philb@gnu.org> This file is part of GNU CC. GNU CC 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. GNU CC 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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); /* Do not assume anything about header files. */ #define NO_IMPLICIT_EXTERN_C /* Default is to use APCS-32 mode. */ #undef TARGET_DEFAULT #define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS) #define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p" #undef MULTILIB_DEFAULTS #define MULTILIB_DEFAULTS \ { "marm", "mlittle-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" } #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__" /* The GNU C++ standard library requires that these macros be defined. */ #undef CPLUSPLUS_CPP_SPEC #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" /* Now we define the strings used to build the spec file. */ #define LIB_SPEC \ "%{pthread:-lpthread} \ %{shared:-lc} \ %{!shared:%{profile:-lc_p}%{!profile:-lc}}" #define LIBGCC_SPEC "%{msoft-float:-lfloat} -lgcc" /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add the GNU/Linux magical crtbegin.o file (see crtstuff.c) which provides part of the support for getting C++ file-scope static object constructed before entering `main'. */ #undef STARTFILE_SPEC #define STARTFILE_SPEC \ "%{!shared: \ %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \ %{!p:%{profile:gcrt1.o%s} \ %{!profile:crt1.o%s}}}} \ crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on the GNU/Linux magical crtend.o file (see crtstuff.c) which provides part of the support for getting C++ file-scope static object constructed before entering `main', followed by a normal GNU/Linux "finalizer" file, `crtn.o'. */ #undef ENDFILE_SPEC #define ENDFILE_SPEC \ "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" #undef LINK_SPEC #define LINK_SPEC "%{h*} %{version:-v} \ %{b} %{Wl,*:%*} \ %{static:-Bstatic} \ %{shared:-shared} \ %{symbolic:-Bsymbolic} \ %{rdynamic:-export-dynamic} \ %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \ -X \ %{mbig-endian:-EB}" \ SUBTARGET_EXTRA_LINK_SPEC #define TARGET_OS_CPP_BUILTINS() \ do { \ builtin_define_std ("unix"); \ builtin_define_std ("linux"); \ builtin_define ("__gnu_linux__"); \ builtin_define ("__ELF__"); \ builtin_assert ("system=unix"); \ builtin_assert ("system=posix"); \ } 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 FP_DEFAULT #define FP_DEFAULT FP_SOFT3 /* 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", NEED_PLT_RELOC ? "(PLT)" : ""); \ } #undef CC1_SPEC #define CC1_SPEC "%{profile:-p}"