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Diffstat (limited to 'binutils-2.25/gas/config/tc-aarch64.h')
| -rw-r--r-- | binutils-2.25/gas/config/tc-aarch64.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/binutils-2.25/gas/config/tc-aarch64.h b/binutils-2.25/gas/config/tc-aarch64.h new file mode 100644 index 00000000..74a81d65 --- /dev/null +++ b/binutils-2.25/gas/config/tc-aarch64.h @@ -0,0 +1,234 @@ +/* tc-aarch64.h -- Header file for tc-aarch64.c. + Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc. + Contributed by ARM Ltd. + + This file is part of GAS. + + 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 of the license, 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 this program; see the file COPYING3. If not, + see <http://www.gnu.org/licenses/>. */ + +#ifndef TC_AARCH64 +#define TC_AARCH64 1 + +#include "opcode/aarch64.h" + +#ifndef TARGET_BYTES_BIG_ENDIAN +#define TARGET_BYTES_BIG_ENDIAN 0 +#endif + +#define WORKING_DOT_WORD + +#define TARGET_ARCH bfd_arch_aarch64 + +#define DIFF_EXPR_OK + +/* Permit // comments. */ +#define DOUBLESLASH_LINE_COMMENTS + +#ifdef LITTLE_ENDIAN +#undef LITTLE_ENDIAN +#endif + +#ifdef BIG_ENDIAN +#undef BIG_ENDIAN +#endif + +#define LITTLE_ENDIAN 1234 +#define BIG_ENDIAN 4321 + +#define SWAP_32(n) \ + ((((n) & 0xff) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) \ + | (((n) >> 24) & 0xff)) + +struct fix; + +struct aarch64_fix +{ + struct aarch64_inst *inst; + enum aarch64_opnd opnd; +}; + +#if defined OBJ_ELF +# define AARCH64_BI_ENDIAN +# define TARGET_FORMAT elf64_aarch64_target_format () +#endif + +#define TC_FORCE_RELOCATION(FIX) aarch64_force_relocation (FIX) + +/* Currently there is no machine specific frags generated. */ +#define md_convert_frag(b,s,f) as_fatal ("aarch64 convert_frag called\n") + +#define md_cleanup() aarch64_cleanup () + +#define md_start_line_hook() aarch64_start_line_hook () + +#define tc_frob_label(S) aarch64_frob_label (S) + +/* We also need to mark assembler created symbols: */ +#define tc_frob_fake_label(S) aarch64_frob_label (S) + +#define TC_FIX_TYPE struct aarch64_fix +#define TC_INIT_FIX_DATA(FIX) { (FIX)->tc_fix_data.inst = NULL; \ + (FIX)->tc_fix_data.opnd = AARCH64_OPND_NIL; } + +#define TC_SYMFIELD_TYPE unsigned int +#define AARCH64_GET_FLAG(s) (*symbol_get_tc (s)) + +void aarch64_copy_symbol_attributes (symbolS *, symbolS *); +#ifndef TC_COPY_SYMBOL_ATTRIBUTES +#define TC_COPY_SYMBOL_ATTRIBUTES(DEST, SRC) \ + (aarch64_copy_symbol_attributes (DEST, SRC)) +#endif + +#define TC_START_LABEL(C,S,STR) ((C) == ':' \ + || ((C) == '/' && aarch64_data_in_code ())) +#define tc_canonicalize_symbol_name(str) aarch64_canonicalize_symbol_name (str); +#define obj_adjust_symtab() aarch64_adjust_symtab () + +#define LISTING_HEADER "AARCH64 GAS " + +#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_64 \ + || (FIX)->fx_r_type == BFD_RELOC_32 \ + || TC_FORCE_RELOCATION (FIX)) + +#define TC_CONS_FIX_NEW cons_fix_new_aarch64 + +/* Max code alignment is 32 bytes */ +#define MAX_MEM_FOR_RS_ALIGN_CODE 31 + +/* For frags in code sections we need to record whether they contain + code or data. */ +struct aarch64_frag_type +{ + int recorded; +#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 aarch64_frag_type +/* NOTE: max_chars is a local variable from frag_var / frag_variant. */ +#define TC_FRAG_INIT(fragp) aarch64_init_frag (fragp, max_chars) +#define HANDLE_ALIGN(fragp) aarch64_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)) \ + { \ + aarch64_frag_align_code (N, MAX); \ + goto LABEL; \ + } + +#define DWARF2_LINE_MIN_INSN_LENGTH 2 + +/* The lr register is r30. */ +#define DWARF2_DEFAULT_RETURN_COLUMN 30 + +/* Registers are generally saved at negative offsets to the CFA. */ +#define DWARF2_CIE_DATA_ALIGNMENT (-4) + +extern int aarch64_dwarf2_addr_size (void); +#define DWARF2_ADDR_SIZE(bfd) aarch64_dwarf2_addr_size () + +#ifdef OBJ_ELF +# define obj_frob_symbol(sym, punt) aarch64elf_frob_symbol ((sym), & (punt)) + +# define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" +# define TC_SEGMENT_INFO_TYPE struct aarch64_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_INSN, +}; + +void mapping_state (enum mstate); + +struct aarch64_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 + +/* CFI hooks. */ +#define tc_regname_to_dw2regnum tc_aarch64_regname_to_dw2regnum +#define tc_cfi_frame_initial_instructions tc_aarch64_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) 1 +/* 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 aarch64_frag_align_code (int, int); +extern const char * elf64_aarch64_target_format (void); +extern int aarch64_force_relocation (struct fix *); +extern void aarch64_cleanup (void); +extern void aarch64_start_line_hook (void); +extern void aarch64_frob_label (symbolS *); +extern int aarch64_data_in_code (void); +extern char * aarch64_canonicalize_symbol_name (char *); +extern void aarch64_adjust_symtab (void); +extern void aarch64elf_frob_symbol (symbolS *, int *); +extern void cons_fix_new_aarch64 (fragS *, int, int, expressionS *); +extern void aarch64_init_frag (struct frag *, int); +extern void aarch64_handle_align (struct frag *); +extern int tc_aarch64_regname_to_dw2regnum (char *regname); +extern void tc_aarch64_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 */ + +#endif /* TC_AARCH64 */ |