X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-arm.h;h=f205dff25221762aac33bdec0a6469c843f4dc56;hb=ea1562b345338540cf9a3c8fa28fbcb6da78fd3e;hp=c5ab88705125669fcd795783cbda1422a10c29cc;hpb=72ec28b8afa357cdde70c612b4e0e9f37a34f8e4;p=binutils-gdb.git diff --git a/gas/config/tc-arm.h b/gas/config/tc-arm.h index c5ab8870512..f205dff2522 100644 --- a/gas/config/tc-arm.h +++ b/gas/config/tc-arm.h @@ -1,6 +1,6 @@ /* This file is tc-arm.h - Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999 - Free Software Foundation, Inc. + 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) @@ -47,64 +47,47 @@ #define LITTLE_ENDIAN 1234 #define BIG_ENDIAN 4321 -#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 -#endif /* OBJ_AOUT */ +struct fix; -#ifdef OBJ_AIF -#define TARGET_FORMAT "aif" -#endif - -#if defined OBJ_COFF || defined OBJ_ELF +#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 - -# 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 +# 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 -#ifdef OBJ_ELF -# 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 +#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX) -#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")); } #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) @@ -114,25 +97,17 @@ symbols as Thumb. */ #define TC_FIX_TYPE PTR -#define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL) - -#ifdef OBJ_ELF -#include "write.h" /* For definition of fixS */ -#define obj_fix_adjustable(fixP) arm_fix_adjustable (fixP) -boolean arm_fix_adjustable PARAMS ((fixS *)); -#else -#define obj_fix_adjustable(fixP) 0 -#endif +#define TC_INIT_FIX_DATA(FIX) ((FIX)->tc_fix_data = NULL) /* We need to keep some local information on symbols. */ -#define TC_SYMFIELD_TYPE unsigned int +#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 suppports interworking. */ +#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) @@ -143,69 +118,111 @@ boolean arm_fix_adjustable PARAMS ((fixS *)); #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 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 *)); +#define LISTING_HEADER "ARM GAS " -#define obj_adjust_symtab() arm_adjust_symtab () - extern void arm_adjust_symtab PARAMS ((void)); +#define OPTIONAL_REGISTER_PREFIX '%' -#ifdef OBJ_ELF -#define obj_frob_symbol(sym, punt) armelf_frob_symbol ((sym), & (punt)) -void armelf_frob_symbol PARAMS ((symbolS *, int *)); -#endif +#define LOCAL_LABEL(name) (name[0] == '.' && (name[1] == 'L')) +#define LOCAL_LABELS_FB 1 -#define tc_aout_pre_write_hook(x) {;} /* not used */ +/* 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 LISTING_HEADER "ARM GAS " +#define TC_FORCE_RELOCATION_LOCAL(FIX) \ + (!(FIX)->fx_pcrel \ + || (FIX)->fx_plt \ + || (FIX)->fx_r_type == BFD_RELOC_ARM_GOT12 \ + || (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32 \ + || (FIX)->fx_r_type == BFD_RELOC_32 \ + || TC_FORCE_RELOCATION (FIX)) -#define OPTIONAL_REGISTER_PREFIX '%' +#define TC_CONS_FIX_NEW cons_fix_new_arm -#define md_operand(x) +#define MAX_MEM_FOR_RS_ALIGN_CODE 31 -#define TC_HANDLES_FX_DONE +/* 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_APPLY_FIX3 +#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 LOCAL_LABEL(name) (name[0] == '.' && (name[1] == 'L')) -#define LOCAL_LABELS_FB 1 #ifdef OBJ_ELF -#define LOCAL_LABEL_PREFIX '.' +# 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 LOCAL_LABEL_PREFIX '.' +# define TC_SEGMENT_INFO_TYPE enum mstate + +enum mstate +{ + MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections. */ + MAP_DATA, + MAP_ARM, + MAP_THUMB +}; + +/* 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 -/* 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. */ +#if defined OBJ_ELF || defined OBJ_COFF -#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 EXTERN_FORCE_RELOC 1 +# define tc_fix_adjustable(FIX) arm_fix_adjustable (FIX) +/* Values passed to md_apply_fix3 don't include the symbol value. */ +# define MD_APPLY_SYM_VALUE(FIX) 0 +# define TC_VALIDATE_FIX(FIX, SEGTYPE, LABEL) arm_validate_fix (FIX) -#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 */ + +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);