| /* tc-mips.h -- header file for tc-mips.c. |
| Copyright 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003 |
| Free Software Foundation, Inc. |
| Contributed by the OSF and Ralph Campbell. |
| Written by Keith Knowles and Ralph Campbell, working independently. |
| Modified for ECOFF support by Ian Lance Taylor of Cygnus Support. |
| |
| 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 2, 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, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #ifndef TC_MIPS |
| #define TC_MIPS |
| |
| struct frag; |
| struct expressionS; |
| |
| /* Default to big endian. */ |
| #ifndef TARGET_BYTES_BIG_ENDIAN |
| #define TARGET_BYTES_BIG_ENDIAN 1 |
| #endif |
| |
| #define TARGET_ARCH bfd_arch_mips |
| |
| #define WORKING_DOT_WORD 1 |
| #define OLD_FLOAT_READS |
| #define REPEAT_CONS_EXPRESSIONS |
| #define RELOC_EXPANSION_POSSIBLE |
| #define MAX_RELOC_EXPANSION 3 |
| #define LOCAL_LABELS_FB 1 |
| |
| /* Maximum symbol offset that can be encoded in a BFD_RELOC_GPREL16 |
| relocation. */ |
| #define MAX_GPREL_OFFSET (0x7FF0) |
| |
| #define md_relax_frag(segment, fragp, stretch) \ |
| mips_relax_frag(segment, fragp, stretch) |
| extern int mips_relax_frag (asection *, struct frag *, long); |
| |
| #define md_undefined_symbol(name) (0) |
| #define md_operand(x) |
| |
| extern void mips_handle_align (struct frag *); |
| #define HANDLE_ALIGN(fragp) mips_handle_align (fragp) |
| |
| #define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2) |
| |
| /* We permit PC relative difference expressions when generating |
| embedded PIC code. */ |
| #define DIFF_EXPR_OK |
| |
| /* Tell assembler that we have an itbl_mips.h header file to include. */ |
| #define HAVE_ITBL_CPU |
| |
| /* The endianness of the target format may change based on command |
| line arguments. */ |
| #define TARGET_FORMAT mips_target_format() |
| extern const char *mips_target_format (void); |
| |
| /* MIPS PIC level. */ |
| |
| enum mips_pic_level |
| { |
| /* Do not generate PIC code. */ |
| NO_PIC, |
| |
| /* Generate PIC code as in the SVR4 MIPS ABI. */ |
| SVR4_PIC, |
| |
| /* Generate PIC code without using a global offset table: the data |
| segment has a maximum size of 64K, all data references are off |
| the $gp register, and all text references are PC relative. This |
| is used on some embedded systems. */ |
| EMBEDDED_PIC |
| }; |
| |
| extern enum mips_pic_level mips_pic; |
| |
| struct mips_cl_insn |
| { |
| unsigned long insn_opcode; |
| const struct mips_opcode *insn_mo; |
| /* The next two fields are used when generating mips16 code. */ |
| bfd_boolean use_extend; |
| unsigned short extend; |
| }; |
| |
| extern int tc_get_register (int frame); |
| |
| #define md_after_parse_args() mips_after_parse_args() |
| extern void mips_after_parse_args (void); |
| |
| #define tc_init_after_args() mips_init_after_args() |
| extern void mips_init_after_args (void); |
| |
| #define md_parse_long_option(arg) mips_parse_long_option (arg) |
| extern int mips_parse_long_option (const char *); |
| |
| #define tc_frob_label(sym) mips_define_label (sym) |
| extern void mips_define_label (symbolS *); |
| |
| #define tc_frob_file_before_adjust() mips_frob_file_before_adjust () |
| extern void mips_frob_file_before_adjust (void); |
| |
| #define tc_frob_file_before_fix() mips_frob_file () |
| extern void mips_frob_file (void); |
| |
| #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
| #define tc_frob_file_after_relocs mips_frob_file_after_relocs |
| extern void mips_frob_file_after_relocs (void); |
| #endif |
| |
| #define tc_fix_adjustable(fixp) mips_fix_adjustable (fixp) |
| extern int mips_fix_adjustable (struct fix *); |
| |
| /* Values passed to md_apply_fix3 don't include symbol values. */ |
| #define MD_APPLY_SYM_VALUE(FIX) 0 |
| |
| /* Global syms must not be resolved, to support ELF shared libraries. |
| When generating embedded code, we don't have shared libs. */ |
| #define EXTERN_FORCE_RELOC \ |
| (OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
| && mips_pic != EMBEDDED_PIC) |
| |
| /* When generating embedded PIC code we must keep PC relative |
| relocations. */ |
| #define TC_FORCE_RELOCATION(FIX) mips_force_relocation (FIX) |
| extern int mips_force_relocation (struct fix *); |
| |
| #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \ |
| (! SEG_NORMAL (SEG) || mips_force_relocation (FIX)) |
| |
| /* We use this to turn branches to global symbols into branches to |
| local symbols, so that they can be simplified. */ |
| #define TC_VALIDATE_FIX(fixp, this_segment, skip_label) \ |
| do \ |
| if (! mips_validate_fix ((fixp), (this_segment))) \ |
| goto skip_label; \ |
| while (0) |
| extern int mips_validate_fix (struct fix *, asection *); |
| |
| /* Register mask variables. These are set by the MIPS assembly code |
| and used by ECOFF and possibly other object file formats. */ |
| extern unsigned long mips_gprmask; |
| extern unsigned long mips_cprmask[4]; |
| |
| #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
| |
| #define elf_tc_final_processing mips_elf_final_processing |
| extern void mips_elf_final_processing (void); |
| |
| #endif |
| |
| extern void md_mips_end (void); |
| #define md_end() md_mips_end() |
| |
| #define USE_GLOBAL_POINTER_OPT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \ |
| || OUTPUT_FLAVOR == bfd_target_coff_flavour \ |
| || OUTPUT_FLAVOR == bfd_target_elf_flavour) |
| |
| extern void mips_pop_insert (void); |
| #define md_pop_insert() mips_pop_insert() |
| |
| extern void mips_flush_pending_output (void); |
| #define md_flush_pending_output mips_flush_pending_output |
| |
| extern void mips_enable_auto_align (void); |
| #define md_elf_section_change_hook() mips_enable_auto_align() |
| |
| extern enum dwarf2_format mips_dwarf2_format (void); |
| #define DWARF2_FORMAT() mips_dwarf2_format () |
| |
| #define DWARF2_ADDR_SIZE(bfd) \ |
| (DWARF2_FORMAT () == dwarf2_format_32bit ? 4 : 8) |
| |
| typedef struct { |
| offsetT tc_fr_offset; |
| } tc_frag_data_type; |
| #define TC_FRAG_TYPE tc_frag_data_type |
| |
| #endif /* TC_MIPS */ |