/* This file is tc-arm.h
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
- Copyright (C) 1994, 1995 Free Software Foundation, Inc.
-
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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
-#define COFF_MAGIC ARMMAGIC
-#define TARGET_ARCH bfd_arch_arm
+#ifndef TARGET_BYTES_BIG_ENDIAN
+#define TARGET_BYTES_BIG_ENDIAN 0
+#endif
-#define AOUT_MACHTYPE 0
+#define WORKING_DOT_WORD
-#define DIFF_EXPR_OK
+#define COFF_MAGIC ARMMAGIC
+#define TARGET_ARCH bfd_arch_arm
-#define LITTLE_ENDIAN 1234
-#define BIG_ENDIAN 4321
+#define AOUT_MACHTYPE 0
-/* If neither TARGET_BYTES_BIG_ENDIAN nor TARGET_BYTES_LITTLE_ENDIAN
- is specified, default to little endian. */
-#ifndef TARGET_BYTES_BIG_ENDIAN
-#ifndef TARGET_BYTES_LITTLE_ENDIAN
-#define TARGET_BYTES_LITTLE_ENDIAN
-#endif
-#endif
+#define DIFF_EXPR_OK
-#ifdef OBJ_AOUT
-#ifdef TE_RISCIX
-#define TARGET_FORMAT "a.out-riscix"
-#else
-#ifdef TARGET_BYTES_BIG_ENDIAN
-#define TARGET_FORMAT "a.out-arm-big"
-#else
-#define TARGET_FORMAT "a.out-arm-little"
-#endif
-#endif
+#ifdef LITTLE_ENDIAN
+#undef LITTLE_ENDIAN
#endif
-#ifdef OBJ_AIF
-#define TARGET_FORMAT "aif"
+#ifdef BIG_ENDIAN
+#undef BIG_ENDIAN
#endif
-#ifdef OBJ_COFF
-#ifdef TE_PE
-#define TC_FORCE_RELOCATION(x) ((x)->fx_r_type==11)
-#define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little")
-/* Tell tc-arm.c to support runtime endian selection. */
-#define ARM_BI_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")
+# 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 md_convert_frag(b,s,f) {as_fatal ("arm convert_frag\n");}
+#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX)
+
+#define md_convert_frag(b, s, f) { as_fatal (_("arm convert_frag\n")); }
+
+#define md_cleanup() arm_cleanup ()
-#define md_after_pass_hook() arm_after_pass_hook ()
#define md_start_line_hook() arm_start_line_hook ()
-#define tc_frob_label(S) arm_frob_label (S)
-
-#define obj_fix_adjustable(fixP) 0
-
-#if 0 /* It isn't as simple as this */
-#define tc_frob_symbol(sym,punt) \
-{ if (S_IS_LOCAL (sym)) \
- { \
- punt = 1; \
- sym->sy_used_in_reloc = 0; \
- }}
-#endif
-
-#if 0
-#define tc_crawl_symbol_chain(a) {;} /* not used */
-#define tc_headers_hook(a) {;} /* not used */
-#endif
-#define tc_aout_pre_write_hook(x) {;} /* not used */
+#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)
+
+/* 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)
+#define THUMB_IS_FUNC(s) (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)
+
+#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))
+
+#define TC_START_LABEL(C,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 tc_aout_pre_write_hook(x) {;} /* not used */
#define LISTING_HEADER "ARM GAS "
#define OPTIONAL_REGISTER_PREFIX '%'
-#define md_operand(x)
+#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_plt \
+ || (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32 \
+ || (FIX)->fx_r_type == BFD_RELOC_32 \
+ || TC_FORCE_RELOCATION (FIX))
+
+#define TC_CONS_FIX_NEW cons_fix_new_arm
+
+#define MAX_MEM_FOR_RS_ALIGN_CODE 31
+
+/* 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. */
+#define TC_FRAG_TYPE int
+#define TC_FRAG_INIT(fragp) arm_init_frag (fragp)
+#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; \
+ }
+
+#ifdef OBJ_ELF
+# define DWARF2_LINE_MIN_INSN_LENGTH 2
+# 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
+
+enum mstate
+{
+ MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections. */
+ MAP_DATA,
+ MAP_ARM,
+ MAP_THUMB
+};
+
+struct arm_segment_info_type
+{
+ enum mstate mapstate;
+ unsigned int marked_pr_dependency;
+};
+
+/* We want .cfi_* pseudo-ops for generating unwind info. */
+#define TARGET_USE_CFIPOP 1
+
+/* 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
+
+/* 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 LOCAL_LABELS_FB 1
+# define EXTERN_FORCE_RELOC 1
+# define tc_fix_adjustable(FIX) arm_fix_adjustable (FIX)
+/* Values passed to md_apply_fix don't include the symbol value. */
+# define MD_APPLY_SYM_VALUE(FIX) 0
+# define TC_VALIDATE_FIX(FIX, SEGTYPE, LABEL) arm_validate_fix (FIX)
-/* Use defaults for OBJ_AOUT. */
-#ifndef OBJ_AOUT
-#define LOCAL_LABEL(name) ((name)[0] == '.' && (name)[1] == 'L')
-#define FAKE_LABEL_NAME ".L0\001"
#endif
-/* end of tc-arm.h */
+#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 *);
+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 (const char *regname);
+extern void tc_arm_frame_initial_instructions (void);
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