/* This file is tc-arm.h
- Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999
+ Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
#define WORKING_DOT_WORD
-#define COFF_MAGIC ARMMAGIC
-#define TARGET_ARCH bfd_arch_arm
+#define COFF_MAGIC ARMMAGIC
+#define TARGET_ARCH bfd_arch_arm
-#define AOUT_MACHTYPE 0
+#define AOUT_MACHTYPE 0
#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
+#define LITTLE_ENDIAN 1234
+#define BIG_ENDIAN 4321
-#ifdef OBJ_AOUT
-#ifdef TE_RISCIX
-#define TARGET_FORMAT "a.out-riscix"
+#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 \
+# define ARM_BI_ENDIAN
+# define TARGET_FORMAT \
(target_big_endian ? "a.out-arm-big" : "a.out-arm-little")
#endif
-#endif
+#endif /* OBJ_AOUT */
#ifdef OBJ_AIF
#define TARGET_FORMAT "aif"
#endif
-#ifdef OBJ_COFF
+#if defined OBJ_COFF || defined OBJ_ELF
# define ARM_BI_ENDIAN
- extern boolean arm_validate_fix ();
-# define TC_VALIDATE_FIX(fixP,segType,Label) if (arm_validate_fix (fixP)) add_symbolP = fixP->fx_addsy
-# ifdef TE_PE
-# define TC_FORCE_RELOCATION(x) ((x)->fx_r_type==BFD_RELOC_RVA)
-# define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little")
+
+# define TC_VALIDATE_FIX(fixP, segType, Label) \
+ if (arm_validate_fix (fixP)) add_symbolP = fixP->fx_addsy
+ extern boolean arm_validate_fix PARAMS ((struct fix *));
+#endif
+
+#ifdef OBJ_COFF
+# if defined TE_PE
+# define TC_FORCE_RELOCATION(x) ((x)->fx_r_type == BFD_RELOC_RVA)
+# ifdef 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")
- /* Tell tc-arm.c to support runtime endian selection. */
# endif
#endif
-/* start-sanitize-armelf */
#ifdef OBJ_ELF
-extern boolean arm_validate_fix ();
-#define TC_VALIDATE_FIX(fixP,segType,Label) if (arm_validate_fix (fixP)) add_symbolP = fixP->fx_addsy
-#define ARM_BI_ENDIAN
-#define TARGET_FORMAT (target_big_endian ? "elf32-bigarm" : "elf32-littlearm")
+# define TARGET_FORMAT elf32_arm_target_format()
+ extern const char * elf32_arm_target_format PARAMS ((void));
+
+# define TC_FORCE_RELOCATION(fixp) arm_force_relocation (fixp)
+ extern int arm_force_relocation PARAMS ((struct fix *));
#endif
-/* end-sanitize-armelf */
-#define md_convert_frag(b,s,f) {as_fatal (_("arm convert_frag\n"));}
+#define md_convert_frag(b, s, f) {as_fatal (_("arm convert_frag\n"));}
-extern void arm_cleanup PARAMS ((void));
-extern void arm_start_line_hook PARAMS ((void));
-extern void arm_frob_label PARAMS ((struct symbol *));
#define md_cleanup() arm_cleanup ()
+ extern void arm_cleanup PARAMS ((void));
+
#define md_start_line_hook() arm_start_line_hook ()
+ extern void arm_start_line_hook PARAMS ((void));
+
#define tc_frob_label(S) arm_frob_label (S)
+ extern void arm_frob_label PARAMS ((symbolS *));
+
/* 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. */
-/* start-sanitize-armelf */
+#define TC_FIX_TYPE PTR
+#define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL)
+
#ifdef OBJ_ELF
-#define obj_fix_adjustable(fixP) arm_fix_adjustable(fixP)
+#include "write.h" /* For definition of fixS */
+#define obj_fix_adjustable(fixP) arm_fix_adjustable (fixP)
+boolean arm_fix_adjustable PARAMS ((fixS *));
#else
-/* end-sanitize-armelf */
#define obj_fix_adjustable(fixP) 0
-/* start-sanitize-armelf */
#endif
-/* end-sanitize-armelf */
/* We need to keep some local information on symbols. */
#define TC_SYMFIELD_TYPE unsigned int
-#define ARM_GET_FLAG(s) ((s)->sy_tc)
-#define ARM_SET_FLAG(s,v) ((s)->sy_tc |= (v))
-#define ARM_RESET_FLAG(s,v) ((s)->sy_tc &= ~(v))
+#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 suppports interworking. */
#define THUMB_SET_FUNC(s,t) ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC) : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC))
-#define TC_FIX_TYPE PTR
-#define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL)
-
#define TC_START_LABEL(C,STR) \
(c == ':' || (c == '/' && arm_data_in_code ()))
int arm_data_in_code PARAMS ((void));
#define tc_canonicalize_symbol_name(str) \
- arm_canonicalize_symbol_name (str);
-char *arm_canonicalize_symbol_name PARAMS ((char *));
-
-#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
+ arm_canonicalize_symbol_name (str);
+char * arm_canonicalize_symbol_name PARAMS ((char *));
-#ifdef OBJ_ELF
-#define obj_frob_symbol(sym, punt) armelf_frob_symbol (sym, punt)
-#endif
+#define obj_adjust_symtab() arm_adjust_symtab ()
+ extern void arm_adjust_symtab PARAMS ((void));
-/* Finish processing the entire symbol table: */
#ifdef OBJ_ELF
-#define obj_adjust_symtab armelf_adjust_symtab
-extern void armelf_adjust_symtab PARAMS ((void));
-#else
-#define obj_adjust_symtab arm_adjust_symtab
-extern void arm_adjust_symtab PARAMS ((void));
-#endif
-
-#if 0
-#define tc_crawl_symbol_chain(a) {;} /* not used */
-#define tc_headers_hook(a) {;} /* not used */
+#define obj_frob_symbol(sym, punt) armelf_frob_symbol ((sym), & (punt))
+void armelf_frob_symbol PARAMS ((symbolS *, int *));
#endif
#define tc_aout_pre_write_hook(x) {;} /* not used */
#define MD_APPLY_FIX3
-#define LOCAL_LABEL(name) (name[0] == '.' \
- && (name[1] == 'L'))
-#define LOCAL_LABELS_FB 1
+#define LOCAL_LABEL(name) (name[0] == '.' && (name[1] == 'L'))
+#define LOCAL_LABELS_FB 1
+#ifdef OBJ_ELF
+#define LOCAL_LABEL_PREFIX '.'
+#endif
+/* This expression evaluates to false if the relocation is for a local object
+ for which we still want to do the relocation at runtime. True if we
+ are willing to perform this relocation while building the .o file.
+ This is only used for pcrel relocations, so GOTOFF does not need to be
+ checked here. 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_RELOC_RTSYM_LOC_FIXUP(FIX) \
+ ( (FIX)->fx_r_type != BFD_RELOC_ARM_GOT12 \
+ && (FIX)->fx_r_type != BFD_RELOC_ARM_GOT32 \
+ && (FIX)->fx_r_type != BFD_RELOC_32)
+
+#define TC_CONS_FIX_NEW cons_fix_new_arm
+ extern void cons_fix_new_arm PARAMS ((fragS *, int, int, expressionS *));
+
+/* Don't allow symbols to be discarded on GOT related relocs,
+ nor on globals. */
+#define tc_fix_adjustable(x) (\
+ ((x)->fx_r_type == BFD_RELOC_ARM_PLT32 \
+ || (x)->fx_r_type == BFD_RELOC_ARM_GOT32 \
+ || (x)->fx_r_type == BFD_RELOC_ARM_GOTOFF \
+ || S_IS_EXTERN ((x)->fx_addsy) \
+ || S_IS_WEAK ((x)->fx_addsy)) ? 0 : 1)
+
+#ifdef OBJ_ELF
+#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
+#else
+#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
+#endif
+
/* end of tc-arm.h */
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