[thirdparty/gcc.git] / gcc / config / arm / linux-eabi.h

/* Configuration file for ARM GNU/Linux EABI targets.
   Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011
   Free Software Foundation, Inc.
   Contributed by CodeSourcery, LLC   

   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.

   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/>.  */

/* On EABI GNU/Linux, we want both the BPABI builtins and the
   GNU/Linux builtins.  */
#undef  TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() 		\
  do 						\
    {						\
      TARGET_BPABI_CPP_BUILTINS();		\
      GNU_USER_TARGET_OS_CPP_BUILTINS();	\
      ANDROID_TARGET_OS_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
#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT

/* We default to the "aapcs-linux" ABI so that enums are int-sized by
   default.  */
#undef  ARM_DEFAULT_ABI
#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX

/* Default to armv5t so that thumb shared libraries work.
   The ARM10TDMI core is the default for armv5t, so set
   SUBTARGET_CPU_DEFAULT to achieve this.  */
#undef  SUBTARGET_CPU_DEFAULT
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi

/* TARGET_BIG_ENDIAN_DEFAULT is set in
   config.gcc for big endian configurations.  */
#undef  TARGET_LINKER_EMULATION
#if TARGET_BIG_ENDIAN_DEFAULT
#define TARGET_LINKER_EMULATION "armelfb_linux_eabi"
#else
#define TARGET_LINKER_EMULATION "armelf_linux_eabi"
#endif

#undef  SUBTARGET_EXTRA_LINK_SPEC
#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION

/* Use ld-linux.so.3 so that it will be possible to run "classic"
   GNU/Linux binaries on an EABI system.  */
#undef  GLIBC_DYNAMIC_LINKER
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"

/* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
   use the GNU/Linux version, not the generic BPABI version.  */
#undef  LINK_SPEC
#define LINK_SPEC BE8_LINK_SPEC						\
  LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)

#undef  CC1_SPEC
#define CC1_SPEC							\
  LINUX_OR_ANDROID_CC (GNU_USER_TARGET_CC1_SPEC,			\
		       GNU_USER_TARGET_CC1_SPEC " " ANDROID_CC1_SPEC)

#define CC1PLUS_SPEC \
  LINUX_OR_ANDROID_CC ("", ANDROID_CC1PLUS_SPEC)

#undef  LIB_SPEC
#define LIB_SPEC							\
  LINUX_OR_ANDROID_LD (GNU_USER_TARGET_LIB_SPEC,			\
		       GNU_USER_TARGET_LIB_SPEC " " ANDROID_LIB_SPEC)

#undef	STARTFILE_SPEC
#define STARTFILE_SPEC \
  LINUX_OR_ANDROID_LD (GNU_USER_TARGET_STARTFILE_SPEC, ANDROID_STARTFILE_SPEC)

#undef	ENDFILE_SPEC
#define ENDFILE_SPEC \
  LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)

/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
   do not use -lfloat.  */
#undef LIBGCC_SPEC

/* Clear the instruction cache from `beg' to `end'.  This is
   implemented in lib1funcs.S, so ensure an error if this definition
   is used.  */
#undef  CLEAR_INSN_CACHE
#define CLEAR_INSN_CACHE(BEG, END) not_used

#define ARM_TARGET2_DWARF_FORMAT (DW_EH_PE_pcrel | DW_EH_PE_indirect)
Commit	Line	Data
077fc835	1	/* Configuration file for ARM GNU/Linux EABI targets.
8e38461c	2	Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011
077fc835 KH	3	Free Software Foundation, Inc.
	4	Contributed by CodeSourcery, LLC
	5
	6	This file is part of GCC.
	7
	8	GCC is free software; you can redistribute it and/or modify it
	9	under the terms of the GNU General Public License as published
2f83c7d6	10	by the Free Software Foundation; either version 3, or (at your
077fc835 KH	11	option) any later version.
	12
	13	GCC is distributed in the hope that it will be useful, but WITHOUT
	14	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	15	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	16	License for more details.
	17
	18	You should have received a copy of the GNU General Public License
2f83c7d6 NC	19	along with GCC; see the file COPYING3. If not see
2f83c7d6 NC	20	<http://www.gnu.org/licenses/>. */
077fc835 KH	21
	22	/* On EABI GNU/Linux, we want both the BPABI builtins and the
	23	GNU/Linux builtins. */
d3a9662c	24	#undef TARGET_OS_CPP_BUILTINS
077fc835 KH	25	#define TARGET_OS_CPP_BUILTINS() \
	26	do \
	27	{ \
	28	TARGET_BPABI_CPP_BUILTINS(); \
107fd1c1	29	GNU_USER_TARGET_OS_CPP_BUILTINS(); \
2c8f43e6	30	ANDROID_TARGET_OS_CPP_BUILTINS(); \
077fc835 KH	31	} \
	32	while (false)
	33
	34	/* We default to a soft-float ABI so that binaries can run on all
	35	target hardware. */
d3a9662c	36	#undef TARGET_DEFAULT_FLOAT_ABI
077fc835 KH	37	#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
	38
	39	/* We default to the "aapcs-linux" ABI so that enums are int-sized by
	40	default. */
d3a9662c	41	#undef ARM_DEFAULT_ABI
077fc835 KH	42	#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
	43
	44	/* Default to armv5t so that thumb shared libraries work.
	45	The ARM10TDMI core is the default for armv5t, so set
	46	SUBTARGET_CPU_DEFAULT to achieve this. */
d3a9662c	47	#undef SUBTARGET_CPU_DEFAULT
077fc835 KH	48	#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
077fc835 KH	49
d3a9662c BF	50	/* TARGET_BIG_ENDIAN_DEFAULT is set in
	51	config.gcc for big endian configurations. */
	52	#undef TARGET_LINKER_EMULATION
	53	#if TARGET_BIG_ENDIAN_DEFAULT
	54	#define TARGET_LINKER_EMULATION "armelfb_linux_eabi"
	55	#else
	56	#define TARGET_LINKER_EMULATION "armelf_linux_eabi"
	57	#endif
	58
	59	#undef SUBTARGET_EXTRA_LINK_SPEC
	60	#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION
077fc835 KH	61
	62	/* Use ld-linux.so.3 so that it will be possible to run "classic"
	63	GNU/Linux binaries on an EABI system. */
d3a9662c	64	#undef GLIBC_DYNAMIC_LINKER
464aea98	65	#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
077fc835 KH	66
	67	/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
	68	use the GNU/Linux version, not the generic BPABI version. */
d3a9662c	69	#undef LINK_SPEC
51b9db92 MK	70	#define LINK_SPEC BE8_LINK_SPEC \
	71	LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
	72	LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
	73
	74	#undef CC1_SPEC
8e38461c JM	75	#define CC1_SPEC \
	76	LINUX_OR_ANDROID_CC (GNU_USER_TARGET_CC1_SPEC, \
	77	GNU_USER_TARGET_CC1_SPEC " " ANDROID_CC1_SPEC)
51b9db92 MK	78
	79	#define CC1PLUS_SPEC \
	80	LINUX_OR_ANDROID_CC ("", ANDROID_CC1PLUS_SPEC)
	81
	82	#undef LIB_SPEC
8e38461c JM	83	#define LIB_SPEC \
	84	LINUX_OR_ANDROID_LD (GNU_USER_TARGET_LIB_SPEC, \
	85	GNU_USER_TARGET_LIB_SPEC " " ANDROID_LIB_SPEC)
51b9db92 MK	86
	87	#undef STARTFILE_SPEC
	88	#define STARTFILE_SPEC \
8e38461c	89	LINUX_OR_ANDROID_LD (GNU_USER_TARGET_STARTFILE_SPEC, ANDROID_STARTFILE_SPEC)
51b9db92 MK	90
	91	#undef ENDFILE_SPEC
	92	#define ENDFILE_SPEC \
8e38461c	93	LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
077fc835 KH	94
	95	/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
	96	do not use -lfloat. */
	97	#undef LIBGCC_SPEC
	98
8a66e987	99	/* Clear the instruction cache from `beg' to `end'. This is
45b86625	100	implemented in lib1funcs.S, so ensure an error if this definition
8a66e987	101	is used. */
d3a9662c	102	#undef CLEAR_INSN_CACHE
7cea01df	103	#define CLEAR_INSN_CACHE(BEG, END) not_used
1e874273 PB	104
1e874273 PB	105	#define ARM_TARGET2_DWARF_FORMAT (DW_EH_PE_pcrel \| DW_EH_PE_indirect)