[deliverable/binutils-gdb.git] / gas / config / tc-arm.h

/* This file is tc-arm.h
   Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
   Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
	Modified by David Taylor (dtaylor@armltd.co.uk)

   This file is part of GAS, the GNU Assembler.

   GAS 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.

   GAS 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 GAS; see the file COPYING.  If not, write to the Free
   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
   02110-1301, USA.  */

#define TC_ARM 1

#ifndef TARGET_BYTES_BIG_ENDIAN
#define TARGET_BYTES_BIG_ENDIAN 0
#endif

#define WORKING_DOT_WORD

#define COFF_MAGIC 	ARMMAGIC
#define TARGET_ARCH 	bfd_arch_arm

#define DIFF_EXPR_OK

#ifdef  LITTLE_ENDIAN
#undef  LITTLE_ENDIAN
#endif

#ifdef  BIG_ENDIAN
#undef  BIG_ENDIAN
#endif

#define LITTLE_ENDIAN 	1234
#define BIG_ENDIAN 	4321

struct fix;

#if defined OBJ_AOUT
# if defined TE_RISCIX
#  define TARGET_FORMAT "a.out-riscix"
# elif defined TE_LINUX
#  define ARM_BI_ENDIAN
#  define TARGET_FORMAT "a.out-arm-linux"
# elif defined TE_NetBSD
#  define TARGET_FORMAT "a.out-arm-netbsd"
# else
#  define ARM_BI_ENDIAN
#  define TARGET_FORMAT (target_big_endian ? "a.out-arm-big" : "a.out-arm-little")
# endif
#elif defined OBJ_AIF
# define TARGET_FORMAT "aif"
#elif defined OBJ_COFF
# define ARM_BI_ENDIAN
# if defined TE_PE
#  if defined TE_EPOC
#   define TARGET_FORMAT (target_big_endian ? "epoc-pe-arm-big" : "epoc-pe-arm-little")
#  elif defined TE_WINCE
#   define TARGET_FORMAT (target_big_endian ? "pe-arm-wince-big" : "pe-arm-wince-little")
#  else
#   define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little")
#  endif
# else
#  define TARGET_FORMAT (target_big_endian ? "coff-arm-big" : "coff-arm-little")
# endif
#elif defined OBJ_ELF
# define ARM_BI_ENDIAN
# define TARGET_FORMAT	elf32_arm_target_format ()
#endif

#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX)

#define md_relax_frag(segment, fragp, stretch) \
  arm_relax_frag (segment, fragp, stretch)
extern int arm_relax_frag (asection *, struct frag *, long);

#define md_optimize_expr(l,o,r)		arm_optimize_expr (l, o, r)
extern int arm_optimize_expr (expressionS *, operatorT, expressionS *);

#define md_cleanup() arm_cleanup ()

#define md_start_line_hook() arm_start_line_hook ()

#define tc_frob_label(S) arm_frob_label (S)

/* We also need to mark assembler created symbols:  */
#define tc_frob_fake_label(S) arm_frob_label (S)

#ifdef OBJ_ELF
#define md_end arm_md_end
extern void arm_md_end (void);
bfd_boolean arm_is_eabi (void);
#endif

/* NOTE: The fake label creation in stabs.c:s_stab_generic() has
   deliberately not been updated to mark assembler created stabs
   symbols as Thumb.  */

#define TC_FIX_TYPE int
#define TC_INIT_FIX_DATA(FIX) ((FIX)->tc_fix_data = 0)

/* We need to keep some local information on symbols.  */

#define TC_SYMFIELD_TYPE 	unsigned int
#define ARM_GET_FLAG(s)   	(*symbol_get_tc (s))
#define ARM_SET_FLAG(s,v) 	(*symbol_get_tc (s) |= (v))
#define ARM_RESET_FLAG(s,v) 	(*symbol_get_tc (s) &= ~(v))

#define ARM_FLAG_THUMB 		(1 << 0)	/* The symbol is a Thumb symbol rather than an Arm symbol.  */
#define ARM_FLAG_INTERWORK 	(1 << 1)	/* The symbol is attached to code that supports interworking.  */
#define THUMB_FLAG_FUNC		(1 << 2)	/* The symbol is attached to the start of a Thumb function.  */

#define ARM_IS_THUMB(s)		(ARM_GET_FLAG (s) & ARM_FLAG_THUMB)
#define ARM_IS_INTERWORK(s)	(ARM_GET_FLAG (s) & ARM_FLAG_INTERWORK)

#ifdef OBJ_ELF

/* For ELF objects THUMB_IS_FUNC is inferred from
   ARM_IS_THUMB and the function type.  */
#define THUMB_IS_FUNC(s)					\
  ((s) != NULL							\
   && ((arm_is_eabi ()						\
	&& (ARM_IS_THUMB (s))					\
	&& (symbol_get_bfdsym (s)->flags & BSF_FUNCTION))	\
       || (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)))

#define ARM_IS_FUNC(s)					\
  (((s) != NULL						\
    && arm_is_eabi ()					\
    && !(ARM_IS_THUMB (s))				\
    /* && !(THUMB_FLAG_FUNC & ARM_GET_FLAG (s)) \ */	\
    && (symbol_get_bfdsym (s)->flags & BSF_FUNCTION)))


#else

#define THUMB_IS_FUNC(s)	((s) && ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)
#define ARM_IS_FUNC(s)          (!THUMB_IS_FUNC (s) \
				 && (s) && (symbol_get_bfdsym (s)->flags & BSF_FUNCTION))
#endif

#define ARM_SET_THUMB(s,t)      ((t) ? ARM_SET_FLAG (s, ARM_FLAG_THUMB)     : ARM_RESET_FLAG (s, ARM_FLAG_THUMB))
#define ARM_SET_INTERWORK(s,t)  ((t) ? ARM_SET_FLAG (s, ARM_FLAG_INTERWORK) : ARM_RESET_FLAG (s, ARM_FLAG_INTERWORK))
#define THUMB_SET_FUNC(s,t)     ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC)    : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC))

void arm_copy_symbol_attributes (symbolS *, symbolS *);

#ifndef TC_COPY_SYMBOL_ATTRIBUTES
#define TC_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \
  (arm_copy_symbol_attributes (DEST, SRC))
#endif

#define TC_START_LABEL(C,S,STR)            (C == ':' || (C == '/' && arm_data_in_code ()))
#define tc_canonicalize_symbol_name(str) arm_canonicalize_symbol_name (str);
#define obj_adjust_symtab() 		 arm_adjust_symtab ()

#define LISTING_HEADER "ARM GAS "

#define OPTIONAL_REGISTER_PREFIX '%'

#define LOCAL_LABEL(name)  (name[0] == '.' && name[1] == 'L')
#define LOCAL_LABELS_FB    1

/* This expression evaluates to true if the relocation is for a local
   object for which we still want to do the relocation at runtime.
   False if we are willing to perform this relocation while building
   the .o file.  GOTOFF does not need to be checked here because it is
   not pcrel.  I am not sure if some of the others are ever used with
   pcrel, but it is easier to be safe than sorry.  */

#define TC_FORCE_RELOCATION_LOCAL(FIX)			\
  (!(FIX)->fx_pcrel					\
   || (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32		\
   || (FIX)->fx_r_type == BFD_RELOC_32			\
   || ((FIX)->fx_addsy != NULL && S_IS_WEAK ((FIX)->fx_addsy))	\
   || TC_FORCE_RELOCATION (FIX))

/* Force output of R_ARM_REL32 relocations against thumb function symbols.
   This is needed to ensure the low bit is handled correctly.  */
#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG)	\
  (THUMB_IS_FUNC ((FIX)->fx_addsy)		\
   || !SEG_NORMAL (SEG))

#define TC_CONS_FIX_NEW cons_fix_new_arm

#define MAX_MEM_ALIGNMENT_BYTES    6
#define MAX_MEM_FOR_RS_ALIGN_CODE ((1 << MAX_MEM_ALIGNMENT_BYTES) - 1)

/* For frags in code sections we need to record whether they contain
   ARM code or THUMB code.  This is that if they have to be aligned,
   they can contain the correct type of no-op instruction.  */
struct arm_frag_type
{
  int thumb_mode;
#ifdef OBJ_ELF
  /* If there is a mapping symbol at offset 0 in this frag,
     it will be saved in FIRST_MAP.  If there are any mapping
     symbols in this frag, the last one will be saved in
     LAST_MAP.  */
  symbolS *first_map, *last_map;
#endif
};

#define TC_FRAG_TYPE		struct arm_frag_type
/* NOTE: max_chars is a local variable from frag_var / frag_variant.  */
#define TC_FRAG_INIT(fragp)	arm_init_frag (fragp, max_chars)
#define HANDLE_ALIGN(fragp)	arm_handle_align (fragp)

#define md_do_align(N, FILL, LEN, MAX, LABEL)					\
  if (FILL == NULL && (N) != 0 && ! need_pass_2 && subseg_text_p (now_seg))	\
    {										\
      arm_frag_align_code (N, MAX);						\
      goto LABEL;								\
    }

#define DWARF2_LINE_MIN_INSN_LENGTH 	2

/* The lr register is r14.  */
#define DWARF2_DEFAULT_RETURN_COLUMN  14

/* Registers are generally saved at negative offsets to the CFA.  */
#define DWARF2_CIE_DATA_ALIGNMENT     (-4)

/* State variables for IT block handling.  */
enum it_state
{
  OUTSIDE_IT_BLOCK, MANUAL_IT_BLOCK, AUTOMATIC_IT_BLOCK
};
struct current_it
{
  int mask;
  enum it_state state;
  int cc;
  int block_length;
  char *insn;
  int state_handled;
};

#ifdef OBJ_ELF
# define obj_frob_symbol(sym, punt)	armelf_frob_symbol ((sym), & (punt))
# define md_elf_section_change_hook()	arm_elf_change_section ()
# define md_elf_section_type(str, len)	arm_elf_section_type (str, len)
# define GLOBAL_OFFSET_TABLE_NAME	"_GLOBAL_OFFSET_TABLE_"
# define TC_SEGMENT_INFO_TYPE 		struct arm_segment_info_type

/* This is not really an alignment operation, but it's something we
   need to do at the same time: whenever we are figuring out the
   alignment for data, we should check whether a $d symbol is
   necessary.  */
# define md_cons_align(nbytes)		mapping_state (MAP_DATA)

enum mstate
{
  MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections.  */
  MAP_DATA,
  MAP_ARM,
  MAP_THUMB
};

void mapping_state (enum mstate);

struct arm_segment_info_type
{
  enum mstate mapstate;

  /* Bit N indicates that an R_ARM_NONE relocation has been output for
     __aeabi_unwind_cpp_prN already if set. This enables dependencies to be
     emitted only once per section, to save unnecessary bloat.  */
  unsigned int marked_pr_dependency;

  struct current_it current_it;
};

/* We want .cfi_* pseudo-ops for generating unwind info.  */
#define TARGET_USE_CFIPOP              1

/* CFI hooks.  */
#define tc_regname_to_dw2regnum            tc_arm_regname_to_dw2regnum
#define tc_cfi_frame_initial_instructions  tc_arm_frame_initial_instructions

#else /* Not OBJ_ELF.  */
#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
#endif

#if defined OBJ_ELF || defined OBJ_COFF

# define EXTERN_FORCE_RELOC 			1
# define tc_fix_adjustable(FIX) 		arm_fix_adjustable (FIX)
#endif

#ifdef OBJ_ELF
/* Values passed to md_apply_fix don't include the symbol value.  */
# define MD_APPLY_SYM_VALUE(FIX) 		arm_apply_sym_value (FIX)
#endif

#ifdef OBJ_COFF
# define TC_VALIDATE_FIX(FIX, SEGTYPE, LABEL)	arm_validate_fix (FIX)
/* Values passed to md_apply_fix don't include the symbol value.  */
# define MD_APPLY_SYM_VALUE(FIX) 		0
#endif

#define MD_PCREL_FROM_SECTION(F,S) md_pcrel_from_section(F,S)

extern long md_pcrel_from_section (struct fix *, segT);
extern void arm_frag_align_code (int, int);
extern void arm_validate_fix (struct fix *);
extern const char * elf32_arm_target_format (void);
extern void arm_elf_change_section (void);
extern int arm_force_relocation (struct fix *);
extern void arm_cleanup (void);
extern void arm_start_line_hook (void);
extern void arm_frob_label (symbolS *);
extern int arm_data_in_code (void);
extern char * arm_canonicalize_symbol_name (char *);
extern void arm_adjust_symtab (void);
extern void armelf_frob_symbol (symbolS *, int *);
extern void cons_fix_new_arm (fragS *, int, int, expressionS *);
extern void arm_init_frag (struct frag *, int);
extern void arm_handle_align (struct frag *);
extern bfd_boolean arm_fix_adjustable (struct fix *);
extern int arm_elf_section_type (const char *, size_t);
extern int tc_arm_regname_to_dw2regnum (char *regname);
extern void tc_arm_frame_initial_instructions (void);

#ifdef TE_PE

#define O_secrel O_md1

#define TC_DWARF2_EMIT_OFFSET  tc_pe_dwarf2_emit_offset
void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);

#endif /* TE_PE */

#ifdef OBJ_ELF
#define CONVERT_SYMBOLIC_ATTRIBUTE(name) arm_convert_symbolic_attribute (name)
extern int arm_convert_symbolic_attribute (const char *);
extern int arm_apply_sym_value (struct fix *);
#endif
Commit	Line	Data
252b5132	1	/* This file is tc-arm.h
aef6203b	2	Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
f31fef98	3	2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
252b5132 RH	4	Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
	5	Modified by David Taylor (dtaylor@armltd.co.uk)
	6
	7	This file is part of GAS, the GNU Assembler.
	8
	9	GAS is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
ec2655a6	11	the Free Software Foundation; either version 3, or (at your option)
252b5132 RH	12	any later version.
	13
	14	GAS is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
	18
	19	You should have received a copy of the GNU General Public License
	20	along with GAS; see the file COPYING. If not, write to the Free
4b4da160 NC	21	Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
4b4da160 NC	22	02110-1301, USA. */
252b5132 RH	23
	24	#define TC_ARM 1
	25
	26	#ifndef TARGET_BYTES_BIG_ENDIAN
	27	#define TARGET_BYTES_BIG_ENDIAN 0
	28	#endif
	29
	30	#define WORKING_DOT_WORD
	31
	32	#define COFF_MAGIC ARMMAGIC
	33	#define TARGET_ARCH bfd_arch_arm
	34
252b5132 RH	35	#define DIFF_EXPR_OK
	36
	37	#ifdef LITTLE_ENDIAN
	38	#undef LITTLE_ENDIAN
	39	#endif
	40
	41	#ifdef BIG_ENDIAN
	42	#undef BIG_ENDIAN
	43	#endif
	44
	45	#define LITTLE_ENDIAN 1234
	46	#define BIG_ENDIAN 4321
	47
a161fe53 AM	48	struct fix;
a161fe53 AM	49
69b97547 NC	50	#if defined OBJ_AOUT
	51	# if defined TE_RISCIX
	52	# define TARGET_FORMAT "a.out-riscix"
	53	# elif defined TE_LINUX
	54	# define ARM_BI_ENDIAN
	55	# define TARGET_FORMAT "a.out-arm-linux"
	56	# elif defined TE_NetBSD
	57	# define TARGET_FORMAT "a.out-arm-netbsd"
	58	# else
	59	# define ARM_BI_ENDIAN
	60	# define TARGET_FORMAT (target_big_endian ? "a.out-arm-big" : "a.out-arm-little")
	61	# endif
	62	#elif defined OBJ_AIF
	63	# define TARGET_FORMAT "aif"
	64	#elif defined OBJ_COFF
252b5132	65	# define ARM_BI_ENDIAN
252b5132	66	# if defined TE_PE
69b97547 NC	67	# if defined TE_EPOC
69b97547 NC	68	# define TARGET_FORMAT (target_big_endian ? "epoc-pe-arm-big" : "epoc-pe-arm-little")
7148cc28 NC	69	# elif defined TE_WINCE
7148cc28 NC	70	# define TARGET_FORMAT (target_big_endian ? "pe-arm-wince-big" : "pe-arm-wince-little")
69b97547 NC	71	# else
	72	# define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little")
	73	# endif
252b5132 RH	74	# else
	75	# define TARGET_FORMAT (target_big_endian ? "coff-arm-big" : "coff-arm-little")
	76	# endif
69b97547 NC	77	#elif defined OBJ_ELF
	78	# define ARM_BI_ENDIAN
	79	# define TARGET_FORMAT elf32_arm_target_format ()
252b5132 RH	80	#endif
252b5132 RH	81
114424c6	82	#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX)
114424c6	83
0110f2b8	84	#define md_relax_frag(segment, fragp, stretch) \
e07e6e58	85	arm_relax_frag (segment, fragp, stretch)
0110f2b8	86	extern int arm_relax_frag (asection , struct frag , long);
252b5132	87
a8bc6c78 PB	88	#define md_optimize_expr(l,o,r) arm_optimize_expr (l, o, r)
	89	extern int arm_optimize_expr (expressionS , operatorT, expressionS );
	90
252b5132	91	#define md_cleanup() arm_cleanup ()
252b5132 RH	92
252b5132 RH	93	#define md_start_line_hook() arm_start_line_hook ()
252b5132 RH	94
252b5132 RH	95	#define tc_frob_label(S) arm_frob_label (S)
252b5132 RH	96
	97	/* We also need to mark assembler created symbols: */
	98	#define tc_frob_fake_label(S) arm_frob_label (S)
	99
ee065d83 PB	100	#ifdef OBJ_ELF
	101	#define md_end arm_md_end
	102	extern void arm_md_end (void);
e1da3f5b	103	bfd_boolean arm_is_eabi (void);
ee065d83 PB	104	#endif
ee065d83 PB	105
252b5132 RH	106	/* NOTE: The fake label creation in stabs.c:s_stab_generic() has
	107	deliberately not been updated to mark assembler created stabs
	108	symbols as Thumb. */
	109
adbaf948 ZW	110	#define TC_FIX_TYPE int
adbaf948 ZW	111	#define TC_INIT_FIX_DATA(FIX) ((FIX)->tc_fix_data = 0)
29c4c6b5	112
252b5132 RH	113	/* We need to keep some local information on symbols. */
252b5132 RH	114
69b97547	115	#define TC_SYMFIELD_TYPE unsigned int
174419c1 ILT	116	#define ARM_GET_FLAG(s) (*symbol_get_tc (s))
	117	#define ARM_SET_FLAG(s,v) (*symbol_get_tc (s) \|= (v))
	118	#define ARM_RESET_FLAG(s,v) (*symbol_get_tc (s) &= ~(v))
252b5132 RH	119
252b5132 RH	120	#define ARM_FLAG_THUMB (1 << 0) /* The symbol is a Thumb symbol rather than an Arm symbol. */
2d2255b5	121	#define ARM_FLAG_INTERWORK (1 << 1) /* The symbol is attached to code that supports interworking. */
252b5132 RH	122	#define THUMB_FLAG_FUNC (1 << 2) /* The symbol is attached to the start of a Thumb function. */
	123
	124	#define ARM_IS_THUMB(s) (ARM_GET_FLAG (s) & ARM_FLAG_THUMB)
	125	#define ARM_IS_INTERWORK(s) (ARM_GET_FLAG (s) & ARM_FLAG_INTERWORK)
e07e6e58	126
e1da3f5b PB	127	#ifdef OBJ_ELF
	128
	129	/* For ELF objects THUMB_IS_FUNC is inferred from
267bf995	130	ARM_IS_THUMB and the function type. */
63b33ceb NC	131	#define THUMB_IS_FUNC(s) \
	132	((s) != NULL \
	133	&& ((arm_is_eabi () \
	134	&& (ARM_IS_THUMB (s)) \
	135	&& (symbol_get_bfdsym (s)->flags & BSF_FUNCTION)) \
	136	\|\| (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)))
	137
	138	#define ARM_IS_FUNC(s) \
	139	(((s) != NULL \
	140	&& arm_is_eabi () \
	141	&& !(ARM_IS_THUMB (s)) \
	142	/* && !(THUMB_FLAG_FUNC & ARM_GET_FLAG (s)) \ */ \
267bf995 RR	143	&& (symbol_get_bfdsym (s)->flags & BSF_FUNCTION)))
	144
	145
e1da3f5b	146	#else
e07e6e58	147
63b33ceb	148	#define THUMB_IS_FUNC(s) ((s) && ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)
267bf995	149	#define ARM_IS_FUNC(s) (!THUMB_IS_FUNC (s) \
63b33ceb	150	&& (s) && (symbol_get_bfdsym (s)->flags & BSF_FUNCTION))
e1da3f5b	151	#endif
252b5132 RH	152
	153	#define ARM_SET_THUMB(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_THUMB) : ARM_RESET_FLAG (s, ARM_FLAG_THUMB))
	154	#define ARM_SET_INTERWORK(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_INTERWORK) : ARM_RESET_FLAG (s, ARM_FLAG_INTERWORK))
	155	#define THUMB_SET_FUNC(s,t) ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC) : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC))
	156
794ba86a	157	void arm_copy_symbol_attributes (symbolS , symbolS );
e07e6e58	158
794ba86a DJ	159	#ifndef TC_COPY_SYMBOL_ATTRIBUTES
	160	#define TC_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \
	161	(arm_copy_symbol_attributes (DEST, SRC))
	162	#endif
	163
5e8c8f8f	164	#define TC_START_LABEL(C,S,STR) (C == ':' \|\| (C == '/' && arm_data_in_code ()))
69b97547 NC	165	#define tc_canonicalize_symbol_name(str) arm_canonicalize_symbol_name (str);
69b97547 NC	166	#define obj_adjust_symtab() arm_adjust_symtab ()
252b5132 RH	167
	168	#define LISTING_HEADER "ARM GAS "
	169
	170	#define OPTIONAL_REGISTER_PREFIX '%'
	171
37f6032b ZW	172	#define LOCAL_LABEL(name) (name[0] == '.' && name[1] == 'L')
37f6032b ZW	173	#define LOCAL_LABELS_FB 1
252b5132	174
a161fe53 AM	175	/* This expression evaluates to true if the relocation is for a local
	176	object for which we still want to do the relocation at runtime.
	177	False if we are willing to perform this relocation while building
	178	the .o file. GOTOFF does not need to be checked here because it is
	179	not pcrel. I am not sure if some of the others are ever used with
252b5132 RH	180	pcrel, but it is easier to be safe than sorry. */
252b5132 RH	181
a161fe53 AM	182	#define TC_FORCE_RELOCATION_LOCAL(FIX) \
a161fe53 AM	183	(!(FIX)->fx_pcrel \
a161fe53 AM	184	\|\| (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32 \
a161fe53 AM	185	\|\| (FIX)->fx_r_type == BFD_RELOC_32 \
1fc5d88e	186	\|\| ((FIX)->fx_addsy != NULL && S_IS_WEAK ((FIX)->fx_addsy)) \
a161fe53	187	\|\| TC_FORCE_RELOCATION (FIX))
252b5132	188
a8bc6c78 PB	189	/* Force output of R_ARM_REL32 relocations against thumb function symbols.
	190	This is needed to ensure the low bit is handled correctly. */
	191	#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
	192	(THUMB_IS_FUNC ((FIX)->fx_addsy) \
	193	\|\| !SEG_NORMAL (SEG))
	194
252b5132	195	#define TC_CONS_FIX_NEW cons_fix_new_arm
16a0c2d4	196
140033b3 NC	197	#define MAX_MEM_ALIGNMENT_BYTES 6
140033b3 NC	198	#define MAX_MEM_FOR_RS_ALIGN_CODE ((1 << MAX_MEM_ALIGNMENT_BYTES) - 1)
d8708f40	199
16a0c2d4 NC	200	/* For frags in code sections we need to record whether they contain
	201	ARM code or THUMB code. This is that if they have to be aligned,
	202	they can contain the correct type of no-op instruction. */
cd000bff DJ	203	struct arm_frag_type
	204	{
	205	int thumb_mode;
	206	#ifdef OBJ_ELF
	207	/* If there is a mapping symbol at offset 0 in this frag,
	208	it will be saved in FIRST_MAP. If there are any mapping
	209	symbols in this frag, the last one will be saved in
	210	LAST_MAP. */
	211	symbolS first_map, last_map;
	212	#endif
	213	};
	214
	215	#define TC_FRAG_TYPE struct arm_frag_type
	216	/* NOTE: max_chars is a local variable from frag_var / frag_variant. */
	217	#define TC_FRAG_INIT(fragp) arm_init_frag (fragp, max_chars)
69b97547	218	#define HANDLE_ALIGN(fragp) arm_handle_align (fragp)
16a0c2d4 NC	219
	220	#define md_do_align(N, FILL, LEN, MAX, LABEL) \
	221	if (FILL == NULL && (N) != 0 && ! need_pass_2 && subseg_text_p (now_seg)) \
	222	{ \
	223	arm_frag_align_code (N, MAX); \
	224	goto LABEL; \
	225	}
69b97547	226
f0927246 NC	227	#define DWARF2_LINE_MIN_INSN_LENGTH 2
	228
	229	/* The lr register is r14. */
	230	#define DWARF2_DEFAULT_RETURN_COLUMN 14
	231
	232	/* Registers are generally saved at negative offsets to the CFA. */
8d79fd44	233	#define DWARF2_CIE_DATA_ALIGNMENT (-4)
f0927246	234
e07e6e58 NC	235	/* State variables for IT block handling. */
	236	enum it_state
	237	{
	238	OUTSIDE_IT_BLOCK, MANUAL_IT_BLOCK, AUTOMATIC_IT_BLOCK
	239	};
	240	struct current_it
	241	{
	242	int mask;
	243	enum it_state state;
	244	int cc;
	245	int block_length;
	246	char *insn;
	247	int state_handled;
	248	};
	249
69b97547	250	#ifdef OBJ_ELF
69b97547 NC	251	# define obj_frob_symbol(sym, punt) armelf_frob_symbol ((sym), & (punt))
69b97547 NC	252	# define md_elf_section_change_hook() arm_elf_change_section ()
40a18ebd	253	# define md_elf_section_type(str, len) arm_elf_section_type (str, len)
69b97547	254	# define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
84798bd6	255	# define TC_SEGMENT_INFO_TYPE struct arm_segment_info_type
69b97547	256
e821645d DJ	257	/* This is not really an alignment operation, but it's something we
	258	need to do at the same time: whenever we are figuring out the
	259	alignment for data, we should check whether a $d symbol is
	260	necessary. */
	261	# define md_cons_align(nbytes) mapping_state (MAP_DATA)
	262
69b97547 NC	263	enum mstate
	264	{
	265	MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections. */
	266	MAP_DATA,
	267	MAP_ARM,
	268	MAP_THUMB
	269	};
	270
e821645d DJ	271	void mapping_state (enum mstate);
e821645d DJ	272
84798bd6 JB	273	struct arm_segment_info_type
	274	{
	275	enum mstate mapstate;
940b5ce0 DJ	276
	277	/* Bit N indicates that an R_ARM_NONE relocation has been output for
	278	__aeabi_unwind_cpp_prN already if set. This enables dependencies to be
	279	emitted only once per section, to save unnecessary bloat. */
84798bd6	280	unsigned int marked_pr_dependency;
940b5ce0	281
e07e6e58	282	struct current_it current_it;
84798bd6 JB	283	};
84798bd6 JB	284
a394c00f NC	285	/* We want .cfi_* pseudo-ops for generating unwind info. */
	286	#define TARGET_USE_CFIPOP 1
	287
a394c00f NC	288	/* CFI hooks. */
	289	#define tc_regname_to_dw2regnum tc_arm_regname_to_dw2regnum
	290	#define tc_cfi_frame_initial_instructions tc_arm_frame_initial_instructions
	291
69b97547 NC	292	#else /* Not OBJ_ELF. */
	293	#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
	294	#endif
	295
	296	#if defined OBJ_ELF \|\| defined OBJ_COFF
	297
	298	# define EXTERN_FORCE_RELOC 1
	299	# define tc_fix_adjustable(FIX) arm_fix_adjustable (FIX)
267bf995 RR	300	#endif
	301
	302	#ifdef OBJ_ELF
55cf6793	303	/* Values passed to md_apply_fix don't include the symbol value. */
267bf995	304	# define MD_APPLY_SYM_VALUE(FIX) arm_apply_sym_value (FIX)
4343666d	305	#endif
69b97547	306
4343666d RR	307	#ifdef OBJ_COFF
4343666d RR	308	# define TC_VALIDATE_FIX(FIX, SEGTYPE, LABEL) arm_validate_fix (FIX)
267bf995 RR	309	/* Values passed to md_apply_fix don't include the symbol value. */
267bf995 RR	310	# define MD_APPLY_SYM_VALUE(FIX) 0
69b97547 NC	311	#endif
69b97547 NC	312
2fc8bdac ZW	313	#define MD_PCREL_FROM_SECTION(F,S) md_pcrel_from_section(F,S)
	314
	315	extern long md_pcrel_from_section (struct fix *, segT);
69b97547 NC	316	extern void arm_frag_align_code (int, int);
	317	extern void arm_validate_fix (struct fix *);
	318	extern const char * elf32_arm_target_format (void);
	319	extern void arm_elf_change_section (void);
	320	extern int arm_force_relocation (struct fix *);
	321	extern void arm_cleanup (void);
	322	extern void arm_start_line_hook (void);
	323	extern void arm_frob_label (symbolS *);
	324	extern int arm_data_in_code (void);
	325	extern char * arm_canonicalize_symbol_name (char *);
	326	extern void arm_adjust_symtab (void);
	327	extern void armelf_frob_symbol (symbolS , int );
	328	extern void cons_fix_new_arm (fragS , int, int, expressionS );
cd000bff	329	extern void arm_init_frag (struct frag *, int);
69b97547 NC	330	extern void arm_handle_align (struct frag *);
69b97547 NC	331	extern bfd_boolean arm_fix_adjustable (struct fix *);
40a18ebd	332	extern int arm_elf_section_type (const char *, size_t);
1df69f4f	333	extern int tc_arm_regname_to_dw2regnum (char *regname);
a394c00f	334	extern void tc_arm_frame_initial_instructions (void);
f0927246 NC	335
	336	#ifdef TE_PE
	337
	338	#define O_secrel O_md1
	339
	340	#define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
	341	void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
	342
	343	#endif /* TE_PE */
e04befd0	344
f31fef98	345	#ifdef OBJ_ELF
e04befd0	346	#define CONVERT_SYMBOLIC_ATTRIBUTE(name) arm_convert_symbolic_attribute (name)
f31fef98	347	extern int arm_convert_symbolic_attribute (const char *);
267bf995	348	extern int arm_apply_sym_value (struct fix *);
f31fef98	349	#endif