[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, 2012  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

/* We support double slash line-comments for compatibility with the ARM AArch64 Assembler.  */
#define DOUBLESLASH_LINE_COMMENTS

#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX)

extern unsigned int arm_frag_max_var (struct frag *);
#define md_frag_max_var arm_frag_max_var

#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_FORCE_RELOCATION_ABS(FIX)			\
  (((FIX)->fx_pcrel					\
    && (FIX)->fx_r_type != BFD_RELOC_32			\
    && (FIX)->fx_r_type != BFD_RELOC_ARM_GOT32)		\
   || TC_FORCE_RELOCATION(FIX))

#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,
1bf10b0d	3	2004, 2005, 2006, 2007, 2008, 2009, 2012 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
1bf10b0d NC	82	/* We support double slash line-comments for compatibility with the ARM AArch64 Assembler. */
	83	#define DOUBLESLASH_LINE_COMMENTS
	84
114424c6	85	#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX)
114424c6	86
fa94de6b RM	87	extern unsigned int arm_frag_max_var (struct frag *);
	88	#define md_frag_max_var arm_frag_max_var
	89
0110f2b8	90	#define md_relax_frag(segment, fragp, stretch) \
e07e6e58	91	arm_relax_frag (segment, fragp, stretch)
0110f2b8	92	extern int arm_relax_frag (asection , struct frag , long);
252b5132	93
a8bc6c78 PB	94	#define md_optimize_expr(l,o,r) arm_optimize_expr (l, o, r)
	95	extern int arm_optimize_expr (expressionS , operatorT, expressionS );
	96
252b5132	97	#define md_cleanup() arm_cleanup ()
252b5132 RH	98
252b5132 RH	99	#define md_start_line_hook() arm_start_line_hook ()
252b5132 RH	100
252b5132 RH	101	#define tc_frob_label(S) arm_frob_label (S)
252b5132 RH	102
	103	/* We also need to mark assembler created symbols: */
	104	#define tc_frob_fake_label(S) arm_frob_label (S)
	105
ee065d83 PB	106	#ifdef OBJ_ELF
	107	#define md_end arm_md_end
	108	extern void arm_md_end (void);
e1da3f5b	109	bfd_boolean arm_is_eabi (void);
ee065d83 PB	110	#endif
ee065d83 PB	111
252b5132 RH	112	/* NOTE: The fake label creation in stabs.c:s_stab_generic() has
	113	deliberately not been updated to mark assembler created stabs
	114	symbols as Thumb. */
	115
adbaf948 ZW	116	#define TC_FIX_TYPE int
adbaf948 ZW	117	#define TC_INIT_FIX_DATA(FIX) ((FIX)->tc_fix_data = 0)
29c4c6b5	118
252b5132 RH	119	/* We need to keep some local information on symbols. */
252b5132 RH	120
69b97547	121	#define TC_SYMFIELD_TYPE unsigned int
174419c1 ILT	122	#define ARM_GET_FLAG(s) (*symbol_get_tc (s))
	123	#define ARM_SET_FLAG(s,v) (*symbol_get_tc (s) \|= (v))
	124	#define ARM_RESET_FLAG(s,v) (*symbol_get_tc (s) &= ~(v))
252b5132 RH	125
252b5132 RH	126	#define ARM_FLAG_THUMB (1 << 0) /* The symbol is a Thumb symbol rather than an Arm symbol. */
2d2255b5	127	#define ARM_FLAG_INTERWORK (1 << 1) /* The symbol is attached to code that supports interworking. */
252b5132 RH	128	#define THUMB_FLAG_FUNC (1 << 2) /* The symbol is attached to the start of a Thumb function. */
	129
	130	#define ARM_IS_THUMB(s) (ARM_GET_FLAG (s) & ARM_FLAG_THUMB)
	131	#define ARM_IS_INTERWORK(s) (ARM_GET_FLAG (s) & ARM_FLAG_INTERWORK)
e07e6e58	132
e1da3f5b PB	133	#ifdef OBJ_ELF
	134
	135	/* For ELF objects THUMB_IS_FUNC is inferred from
267bf995	136	ARM_IS_THUMB and the function type. */
63b33ceb NC	137	#define THUMB_IS_FUNC(s) \
	138	((s) != NULL \
	139	&& ((arm_is_eabi () \
	140	&& (ARM_IS_THUMB (s)) \
	141	&& (symbol_get_bfdsym (s)->flags & BSF_FUNCTION)) \
	142	\|\| (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)))
	143
	144	#define ARM_IS_FUNC(s) \
	145	(((s) != NULL \
	146	&& arm_is_eabi () \
	147	&& !(ARM_IS_THUMB (s)) \
	148	/* && !(THUMB_FLAG_FUNC & ARM_GET_FLAG (s)) \ */ \
267bf995 RR	149	&& (symbol_get_bfdsym (s)->flags & BSF_FUNCTION)))
	150
	151
e1da3f5b	152	#else
e07e6e58	153
63b33ceb	154	#define THUMB_IS_FUNC(s) ((s) && ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)
267bf995	155	#define ARM_IS_FUNC(s) (!THUMB_IS_FUNC (s) \
63b33ceb	156	&& (s) && (symbol_get_bfdsym (s)->flags & BSF_FUNCTION))
e1da3f5b	157	#endif
252b5132 RH	158
	159	#define ARM_SET_THUMB(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_THUMB) : ARM_RESET_FLAG (s, ARM_FLAG_THUMB))
	160	#define ARM_SET_INTERWORK(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_INTERWORK) : ARM_RESET_FLAG (s, ARM_FLAG_INTERWORK))
	161	#define THUMB_SET_FUNC(s,t) ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC) : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC))
	162
794ba86a	163	void arm_copy_symbol_attributes (symbolS , symbolS );
e07e6e58	164
794ba86a DJ	165	#ifndef TC_COPY_SYMBOL_ATTRIBUTES
	166	#define TC_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \
	167	(arm_copy_symbol_attributes (DEST, SRC))
	168	#endif
	169
5e8c8f8f	170	#define TC_START_LABEL(C,S,STR) (C == ':' \|\| (C == '/' && arm_data_in_code ()))
69b97547 NC	171	#define tc_canonicalize_symbol_name(str) arm_canonicalize_symbol_name (str);
69b97547 NC	172	#define obj_adjust_symtab() arm_adjust_symtab ()
252b5132 RH	173
	174	#define LISTING_HEADER "ARM GAS "
	175
	176	#define OPTIONAL_REGISTER_PREFIX '%'
	177
37f6032b ZW	178	#define LOCAL_LABEL(name) (name[0] == '.' && name[1] == 'L')
37f6032b ZW	179	#define LOCAL_LABELS_FB 1
252b5132	180
a161fe53 AM	181	/* This expression evaluates to true if the relocation is for a local
	182	object for which we still want to do the relocation at runtime.
	183	False if we are willing to perform this relocation while building
	184	the .o file. GOTOFF does not need to be checked here because it is
	185	not pcrel. I am not sure if some of the others are ever used with
252b5132 RH	186	pcrel, but it is easier to be safe than sorry. */
252b5132 RH	187
a161fe53 AM	188	#define TC_FORCE_RELOCATION_LOCAL(FIX) \
a161fe53 AM	189	(!(FIX)->fx_pcrel \
a161fe53 AM	190	\|\| (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32 \
a161fe53 AM	191	\|\| (FIX)->fx_r_type == BFD_RELOC_32 \
1fc5d88e	192	\|\| ((FIX)->fx_addsy != NULL && S_IS_WEAK ((FIX)->fx_addsy)) \
a161fe53	193	\|\| TC_FORCE_RELOCATION (FIX))
252b5132	194
a8bc6c78 PB	195	/* Force output of R_ARM_REL32 relocations against thumb function symbols.
	196	This is needed to ensure the low bit is handled correctly. */
	197	#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
	198	(THUMB_IS_FUNC ((FIX)->fx_addsy) \
	199	\|\| !SEG_NORMAL (SEG))
	200
6e7ce2cd PB	201	#define TC_FORCE_RELOCATION_ABS(FIX) \
	202	(((FIX)->fx_pcrel \
	203	&& (FIX)->fx_r_type != BFD_RELOC_32 \
	204	&& (FIX)->fx_r_type != BFD_RELOC_ARM_GOT32) \
	205	\|\| TC_FORCE_RELOCATION(FIX))
	206
252b5132	207	#define TC_CONS_FIX_NEW cons_fix_new_arm
16a0c2d4	208
140033b3 NC	209	#define MAX_MEM_ALIGNMENT_BYTES 6
140033b3 NC	210	#define MAX_MEM_FOR_RS_ALIGN_CODE ((1 << MAX_MEM_ALIGNMENT_BYTES) - 1)
d8708f40	211
16a0c2d4 NC	212	/* For frags in code sections we need to record whether they contain
	213	ARM code or THUMB code. This is that if they have to be aligned,
	214	they can contain the correct type of no-op instruction. */
cd000bff DJ	215	struct arm_frag_type
	216	{
	217	int thumb_mode;
	218	#ifdef OBJ_ELF
	219	/* If there is a mapping symbol at offset 0 in this frag,
	220	it will be saved in FIRST_MAP. If there are any mapping
	221	symbols in this frag, the last one will be saved in
	222	LAST_MAP. */
	223	symbolS first_map, last_map;
	224	#endif
	225	};
	226
	227	#define TC_FRAG_TYPE struct arm_frag_type
	228	/* NOTE: max_chars is a local variable from frag_var / frag_variant. */
	229	#define TC_FRAG_INIT(fragp) arm_init_frag (fragp, max_chars)
69b97547	230	#define HANDLE_ALIGN(fragp) arm_handle_align (fragp)
16a0c2d4 NC	231
	232	#define md_do_align(N, FILL, LEN, MAX, LABEL) \
	233	if (FILL == NULL && (N) != 0 && ! need_pass_2 && subseg_text_p (now_seg)) \
	234	{ \
	235	arm_frag_align_code (N, MAX); \
	236	goto LABEL; \
	237	}
69b97547	238
f0927246 NC	239	#define DWARF2_LINE_MIN_INSN_LENGTH 2
	240
	241	/* The lr register is r14. */
	242	#define DWARF2_DEFAULT_RETURN_COLUMN 14
	243
	244	/* Registers are generally saved at negative offsets to the CFA. */
8d79fd44	245	#define DWARF2_CIE_DATA_ALIGNMENT (-4)
f0927246	246
e07e6e58 NC	247	/* State variables for IT block handling. */
	248	enum it_state
	249	{
	250	OUTSIDE_IT_BLOCK, MANUAL_IT_BLOCK, AUTOMATIC_IT_BLOCK
	251	};
	252	struct current_it
	253	{
	254	int mask;
	255	enum it_state state;
	256	int cc;
	257	int block_length;
	258	char *insn;
	259	int state_handled;
	260	};
	261
69b97547	262	#ifdef OBJ_ELF
69b97547 NC	263	# define obj_frob_symbol(sym, punt) armelf_frob_symbol ((sym), & (punt))
69b97547 NC	264	# define md_elf_section_change_hook() arm_elf_change_section ()
40a18ebd	265	# define md_elf_section_type(str, len) arm_elf_section_type (str, len)
69b97547	266	# define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
84798bd6	267	# define TC_SEGMENT_INFO_TYPE struct arm_segment_info_type
69b97547	268
e821645d DJ	269	/* This is not really an alignment operation, but it's something we
	270	need to do at the same time: whenever we are figuring out the
	271	alignment for data, we should check whether a $d symbol is
	272	necessary. */
	273	# define md_cons_align(nbytes) mapping_state (MAP_DATA)
	274
69b97547 NC	275	enum mstate
	276	{
	277	MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections. */
	278	MAP_DATA,
	279	MAP_ARM,
	280	MAP_THUMB
	281	};
	282
e821645d DJ	283	void mapping_state (enum mstate);
e821645d DJ	284
84798bd6 JB	285	struct arm_segment_info_type
	286	{
	287	enum mstate mapstate;
940b5ce0 DJ	288
	289	/* Bit N indicates that an R_ARM_NONE relocation has been output for
	290	__aeabi_unwind_cpp_prN already if set. This enables dependencies to be
	291	emitted only once per section, to save unnecessary bloat. */
84798bd6	292	unsigned int marked_pr_dependency;
940b5ce0	293
e07e6e58	294	struct current_it current_it;
84798bd6 JB	295	};
84798bd6 JB	296
a394c00f NC	297	/* We want .cfi_* pseudo-ops for generating unwind info. */
	298	#define TARGET_USE_CFIPOP 1
	299
a394c00f NC	300	/* CFI hooks. */
	301	#define tc_regname_to_dw2regnum tc_arm_regname_to_dw2regnum
	302	#define tc_cfi_frame_initial_instructions tc_arm_frame_initial_instructions
	303
69b97547 NC	304	#else /* Not OBJ_ELF. */
	305	#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
	306	#endif
	307
	308	#if defined OBJ_ELF \|\| defined OBJ_COFF
	309
	310	# define EXTERN_FORCE_RELOC 1
	311	# define tc_fix_adjustable(FIX) arm_fix_adjustable (FIX)
267bf995 RR	312	#endif
	313
	314	#ifdef OBJ_ELF
55cf6793	315	/* Values passed to md_apply_fix don't include the symbol value. */
267bf995	316	# define MD_APPLY_SYM_VALUE(FIX) arm_apply_sym_value (FIX)
4343666d	317	#endif
69b97547	318
4343666d RR	319	#ifdef OBJ_COFF
4343666d RR	320	# define TC_VALIDATE_FIX(FIX, SEGTYPE, LABEL) arm_validate_fix (FIX)
267bf995 RR	321	/* Values passed to md_apply_fix don't include the symbol value. */
267bf995 RR	322	# define MD_APPLY_SYM_VALUE(FIX) 0
69b97547 NC	323	#endif
69b97547 NC	324
2fc8bdac ZW	325	#define MD_PCREL_FROM_SECTION(F,S) md_pcrel_from_section(F,S)
	326
	327	extern long md_pcrel_from_section (struct fix *, segT);
69b97547 NC	328	extern void arm_frag_align_code (int, int);
	329	extern void arm_validate_fix (struct fix *);
	330	extern const char * elf32_arm_target_format (void);
	331	extern void arm_elf_change_section (void);
	332	extern int arm_force_relocation (struct fix *);
	333	extern void arm_cleanup (void);
	334	extern void arm_start_line_hook (void);
	335	extern void arm_frob_label (symbolS *);
	336	extern int arm_data_in_code (void);
	337	extern char * arm_canonicalize_symbol_name (char *);
	338	extern void arm_adjust_symtab (void);
	339	extern void armelf_frob_symbol (symbolS , int );
	340	extern void cons_fix_new_arm (fragS , int, int, expressionS );
cd000bff	341	extern void arm_init_frag (struct frag *, int);
69b97547 NC	342	extern void arm_handle_align (struct frag *);
69b97547 NC	343	extern bfd_boolean arm_fix_adjustable (struct fix *);
40a18ebd	344	extern int arm_elf_section_type (const char *, size_t);
1df69f4f	345	extern int tc_arm_regname_to_dw2regnum (char *regname);
a394c00f	346	extern void tc_arm_frame_initial_instructions (void);
f0927246 NC	347
	348	#ifdef TE_PE
	349
	350	#define O_secrel O_md1
	351
	352	#define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
	353	void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
	354
	355	#endif /* TE_PE */
e04befd0	356
f31fef98	357	#ifdef OBJ_ELF
e04befd0	358	#define CONVERT_SYMBOLIC_ATTRIBUTE(name) arm_convert_symbolic_attribute (name)
f31fef98	359	extern int arm_convert_symbolic_attribute (const char *);
267bf995	360	extern int arm_apply_sym_value (struct fix *);
f31fef98	361	#endif