configure.ac: Don't add ${libgcj} for arm*-*-freebsd*.

toplevel:

    * configure.ac: Don't add ${libgcj} for arm*-*-freebsd*.
    * configure: Regenerate.
gcc:
    * config.gcc (arm*-*-freebsd*): New configuration.
    * config/arm/freebsd.h: New file.
    * config.host: Add extra components for arm*-*-freebsd*.
    * config/arm/arm.h: Introduce MAX_SYNC_LIBFUNC_SIZE.
    * config/arm/arm.c (arm_init_libfuncs): Use MAX_SYNC_LIBFUNC_SIZE.

libgcc:

    * config.host (arm*-*-freebsd*): Add new configuration for
    arm*-*-freebsd*.
    * config/arm/freebsd-atomic.c: New file.
    * config/arm/t-freebsd: Likewise.
    * config/arm/unwind-arm.h: Add __FreeBSD__ to the list of
    'PC-relative indirect' OS's.

libatomic:

    * configure.tgt: Exclude arm*-*-freebsd* from try_ifunc.

libstdc++-v3:

    * configure.host: Add arm*-*-freebsd* port_specific_symbol_files.

From-SVN: r219388

1 files changed, 180 insertions, 0 deletions

diff --git a/gcc/config/arm/freebsd.h b/gcc/config/arm/freebsd.h
new file mode 100644
index 0000000..040d7c1
--- /dev/null
+++ b/gcc/config/arm/freebsd.h
@@ -0,0 +1,180 @@
+/* Definitions of target machine for GNU compiler, FreeBSD/arm version.
+   Copyright (C) 2002-2015 Free Software Foundation, Inc.
+   Contributed by Wasabi Systems, Inc.
+
+   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 3, 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.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   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/>.  */
+
+#undef  SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC FBSD_CPP_SPEC
+
+#undef  SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS					\
+  { "subtarget_extra_asm_spec",	SUBTARGET_EXTRA_ASM_SPEC },	\
+  { "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, 	\
+  { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
+
+#undef SUBTARGET_EXTRA_ASM_SPEC
+#define SUBTARGET_EXTRA_ASM_SPEC \
+  "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5} " TARGET_FIX_V4BX_SPEC " \
+  %{fpic|fpie:-k} %{fPIC|fPIE:-k}"
+
+#undef SUBTARGET_ASM_FLOAT_SPEC
+#ifdef TARGET_FREEBSD_ARM_HARD_FLOAT
+/* Default to full vfp if we build for arm*hf.  */
+#define SUBTARGET_ASM_FLOAT_SPEC "%{!mfpu=*:-mfpu=vfp}"
+#else
+#define SUBTARGET_ASM_FLOAT_SPEC "%{!mfpu=*:-mfpu=softvfp}"
+#endif
+
+#undef	LINK_SPEC
+#define LINK_SPEC "							\
+  %{p:%nconsider using `-pg' instead of `-p' with gprof (1) }		\
+  %{v:-V}								\
+  %{assert*} %{R*} %{rpath*} %{defsym*}					\
+  %{shared:-Bshareable %{h*} %{soname*}}				\
+  %{!shared:								\
+    %{!static:								\
+      %{rdynamic:-export-dynamic}					\
+      %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }}	\
+    %{static:-Bstatic}}							\
+  %{!static:--hash-style=both --enable-new-dtags}			\
+  %{symbolic:-Bsymbolic}						\
+  -X %{mbig-endian:-EB} %{mlittle-endian:-EL}"
+
+/* 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_fbsd"
+#else
+#define TARGET_ENDIAN_DEFAULT    0
+#define TARGET_ENDIAN_OPTION     "mlittle-endian"
+#define TARGET_LINKER_EMULATION  "armelf_fbsd"
+#endif
+
+#undef	SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
+
+#undef  TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() 		\
+  do						\
+    {						\
+	FBSD_TARGET_OS_CPP_BUILTINS ();		\
+	TARGET_BPABI_CPP_BUILTINS ();		\
+    }						\
+  while (false)
+
+/* We default to a soft-float ABI so that binaries can run on all
+   target hardware.  */
+#undef TARGET_DEFAULT_FLOAT_ABI
+#ifdef TARGET_FREEBSD_ARM_HARD_FLOAT
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
+#else
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
+#endif
+
+#undef ARM_DEFAULT_ABI
+
+/* AACPS_LINUX has access to kernel atomic ops while we don't.
+   But AACPS defaults to short_enums.  */
+#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT)
+
+/* We do not have any MULTILIB_OPTIONS specified, so there are no
+   MULTILIB_DEFAULTS.  */
+#undef  MULTILIB_DEFAULTS
+
+/*  Use the AAPCS type for wchar_t, override the one from config/freebsd.h.  */
+#undef  WCHAR_TYPE
+#define WCHAR_TYPE  "unsigned int"
+
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+#if defined (TARGET_FREEBSD_ARMv6)
+#undef  SUBTARGET_CPU_DEFAULT
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm1176jzs
+#else
+#undef  SUBTARGET_CPU_DEFAULT
+#define SUBTARGET_CPU_DEFAULT   TARGET_CPU_arm9
+#endif
+
+#define SUBTARGET_OVERRIDE_OPTIONS		\
+do {						\
+    if (unaligned_access)			\
+	unaligned_access = 0;			\
+} while (0)
+
+#undef MAX_SYNC_LIBFUNC_SIZE
+#define MAX_SYNC_LIBFUNC_SIZE 4 /* UNITS_PER_WORD not defined yet.  */
+
+/* FreeBSD does its profiling differently to the Acorn compiler.  We
+   don't need a word following the mcount call; and to skip it
+   requires either an assembly stub or use of fomit-frame-pointer when
+   compiling the profiling functions.  Since we break Acorn CC
+   compatibility below a little more won't hurt.  */
+
+#undef ARM_FUNCTION_PROFILER
+#define ARM_FUNCTION_PROFILER(STREAM,LABELNO)		\
+{							\
+  asm_fprintf (STREAM, "\tmov\t%Rip, %Rlr\n");		\
+  asm_fprintf (STREAM, "\tbl\t__mcount%s\n",		\
+	       (TARGET_ARM && NEED_PLT_RELOC)		\
+	       ? "(PLT)" : "");				\
+}
+
+/* Clear the instruction cache from `BEG' to `END'.  This makes a
+   call to the ARM_SYNC_ICACHE architecture specific syscall.  */
+#define CLEAR_INSN_CACHE(BEG, END)					\
+do									\
+  {									\
+    extern int sysarch (int number, void *args);			\
+    struct								\
+      {									\
+	unsigned int addr;						\
+	int          len;						\
+      } s;								\
+    s.addr = (unsigned int) (BEG);					\
+    s.len = (END) - (BEG);						\
+    (void) sysarch (0, &s);						\
+  }									\
+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)
+
+/* Add  .note.GNU-stack.  */
+#undef NEED_INDICATE_EXEC_STACK
+#define NEED_INDICATE_EXEC_STACK 1
+
+#define ARM_TARGET2_DWARF_FORMAT (DW_EH_PE_pcrel | DW_EH_PE_indirect)
+