/* 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
Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org>
/* 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 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", "mapcs-32", "mno-thumb-interwork" }
-
-#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
+ { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
/* 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. */
+#undef LIB_SPEC
#define LIB_SPEC \
"%{pthread:-lpthread} \
%{shared:-lc} \
%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
-#define LIBGCC_SPEC "%{msoft-float:-lfloat} -lgcc"
+#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-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'. */
+ object constructed before entering `main'. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
%{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_assert ("system=unix"); \
- builtin_assert ("system=posix"); \
- } while (0)
+#define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
/* This is how we tell the assembler that two symbols have the same value. */
#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
fprintf (STREAM, "\tbl\tmcount%s\n", NEED_PLT_RELOC ? "(PLT)" : ""); \
}
+/* The 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)))
+
#undef CC1_SPEC
#define CC1_SPEC "%{profile:-p}"
+
+#define LINK_GCC_C_SEQUENCE_SPEC \
+ "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
+
+/* Use --as-needed -lgcc_s for eh support. */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif