/* Definitions for ARM running Linux-based GNU systems using ELF
- Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002
+ Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org>
-This file is part of GNU CC.
+ This file is part of GCC.
-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.
+ 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 3, 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.
+ 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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with GCC; see the file COPYING3. If not see
+ <http://www.gnu.org/licenses/>. */
/* elfos.h should have already been included. Now just override
any conflicting definitions and add any extras. */
#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
+#undef TARGET_DEFAULT_FLOAT_ABI
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
+
+/* TARGET_BIG_ENDIAN_DEFAULT is set in
+ config.gcc for big endian configurations. */
+#if TARGET_BIG_ENDIAN_DEFAULT
+#define TARGET_ENDIAN_DEFAULT MASK_BIG_END
+#define TARGET_ENDIAN_OPTION "mbig-endian"
+#define TARGET_LINKER_EMULATION "armelfb_linux"
+#else
+#define TARGET_ENDIAN_DEFAULT 0
+#define TARGET_ENDIAN_OPTION "mlittle-endian"
+#define TARGET_LINKER_EMULATION "armelf_linux"
+#endif
-/* Default is to use APCS-32 mode. */
#undef TARGET_DEFAULT
-#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)
+#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
-#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
+
+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -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)"
+ { "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 \
- "%{shared: -lc} \
- %{!shared: %{pthread:-lpthread} \
- %{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"
+ "%{pthread:-lpthread} \
+ %{shared:-lc} \
+ %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
-#undef LINK_SPEC
-#define LINK_SPEC "%{h*} %{version:-v} \
- %{b} %{Wl,*:%*} \
+#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 /lib/ld-linux.so.2} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
-X \
- %{mbig-endian:-EB}" \
+ %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
SUBTARGET_EXTRA_LINK_SPEC
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES \
-"-Dunix -D__gnu_linux__ -Dlinux -D__ELF__ \
--Asystem=unix -Asystem=posix"
+#undef LINK_SPEC
+#define LINK_SPEC LINUX_TARGET_LINK_SPEC
-/* Allow #sccs in preprocessor. */
-#define SCCS_DIRECTIVE
+#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) \
while (0)
/* NWFPE always understands FPA instructions. */
-#undef FP_DEFAULT
-#define FP_DEFAULT FP_SOFT3
+#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", NEED_PLT_RELOC ? "(PLT)" : ""); \
+ fprintf (STREAM, "\tbl\tmcount%s\n", \
+ (TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : ""); \
}
-#undef CC1_SPEC
-#define CC1_SPEC "%{profile:-p}"
+/* The GNU/Linux profiler clobbers the link register. Make sure the
+ prologue knows to save it. */
+#define PROFILE_HOOK(X) \
+ emit_clobber (gen_rtx_REG (SImode, LR_REGNUM))
+
+/* The GNU/Linux profiler needs a frame pointer. */
+#define SUBTARGET_FRAME_POINTER_REQUIRED crtl->profile
+
+/* Add .note.GNU-stack. */
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1
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