fbcfacb75d
(struct insn_label_list): Define. (insn_labels, free_insn_labels): New static variables. (mips_clear_insn_labels): New static function. (append_insn): Mark all mips16 text labels, and make them odd. Handle all labels after emitting a nop, not just one. Call mips_clear_insn_labels rather than just clearing insn_label. (mips_emit_delays): Add insns parameter, and use it to decide whether to mark mips16 labels. Handle all labels, not just one. Force mips16 labels to be odd. Change all callers. (mips16_immed): Don't check for an odd branch target. (md_apply_fix): Don't check mips16 mode for a branch reloc. (mips16_extended_frag): Ignore the low bit in a branch target. (md_convert_frag): Likewise. (mips_no_prev_insn): Call mips_clear_insn_labels rather than just clearing insn_label. (mips_align, mips_flush_pending_output, s_cons): Likewise. (s_float_cons, s_gpword): Likewise. (s_align): Use insn_labels rather than insn_label. (s_cons, s_float_cons, s_gpword): Likewise. (mips_frob_file_after_relocs): New function. (mips_define_label): Rewrite to add to insn_labels list. * config/tc-mips.h (tc_frob_file_after_relocs): Define. * ecoff.c (ecoff_build_symbols): If the size of a function comes out odd, increment it.
154 lines
5 KiB
C
154 lines
5 KiB
C
/* tc-mips.h -- header file for tc-mips.c.
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Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
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Contributed by the OSF and Ralph Campbell.
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Written by Keith Knowles and Ralph Campbell, working independently.
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Modified for ECOFF support by Ian Lance Taylor of Cygnus Support.
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This file is part of GAS.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef TC_MIPS
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#define TC_MIPS
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#define TARGET_ARCH bfd_arch_mips
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#define ONLY_STANDARD_ESCAPES
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#define WORKING_DOT_WORD 1
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#define OLD_FLOAT_READS
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#define REPEAT_CONS_EXPRESSIONS
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#define RELOC_EXPANSION_POSSIBLE
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#define MAX_RELOC_EXPANSION 3
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#define LOCAL_LABELS_FB 1
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/* We don't want to define LOCAL_LABELS_DOLLAR, because $0 is really a
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reference to a register, not a label. */
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#undef LOCAL_LABELS_DOLLAR
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#define LOCAL_LABELS_DOLLAR 0
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/* Maximum symbol offset that can be encoded in a BFD_RELOC_MIPS_GPREL
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relocation: */
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#define MAX_GPREL_OFFSET (0x7FF4)
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#define LOCAL_LABEL(name) mips_local_label (name)
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extern int mips_local_label PARAMS ((const char *));
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#define md_relax_frag(fragp, stretch) mips_relax_frag(fragp, stretch)
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extern int mips_relax_frag PARAMS ((struct frag *, long));
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#define md_undefined_symbol(name) (0)
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#define md_operand(x)
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/* We permit PC relative difference expressions when generating
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embedded PIC code. */
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#define DIFF_EXPR_OK
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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/* Default to big endian. */
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#ifndef TARGET_BYTES_LITTLE_ENDIAN
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#undef TARGET_BYTES_BIG_ENDIAN
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#define TARGET_BYTES_BIG_ENDIAN 1
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#endif
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/* The endianness of the target format may change based on command
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line arguments. */
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#define TARGET_FORMAT mips_target_format()
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extern const char *mips_target_format ();
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struct mips_cl_insn
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{
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unsigned long insn_opcode;
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const struct mips_opcode *insn_mo;
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/* The next two fields are used when generating mips16 code. */
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boolean use_extend;
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unsigned short extend;
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};
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extern int tc_get_register PARAMS ((int frame));
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#define md_parse_long_option(arg) mips_parse_long_option (arg)
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extern int mips_parse_long_option PARAMS ((const char *));
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#define tc_frob_label(sym) mips_define_label (sym)
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extern void mips_define_label PARAMS ((struct symbol *));
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#define tc_frob_file() mips_frob_file ()
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extern void mips_frob_file PARAMS ((void));
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#ifdef OBJ_ELF
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#define tc_frob_file_after_relocs mips_frob_file_after_relocs
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extern void mips_frob_file_after_relocs PARAMS ((void));
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#endif
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#define TC_CONS_FIX_NEW cons_fix_new_mips
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extern void cons_fix_new_mips ();
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/* Don't adjust MIPS16 jump relocations to section addresses, so we
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don't have to worry about the format of the offset in the .o file. */
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#define tc_fix_adjustable(fixp) ((fixp)->fx_r_type != BFD_RELOC_MIPS16_JMP)
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/* When generating embedded PIC code we must keep PC relative
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relocations. */
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#define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp)
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extern int mips_force_relocation ();
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/* md_apply_fix sets fx_done correctly. */
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#define TC_HANDLE_FX_DONE 1
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/* Register mask variables. These are set by the MIPS assembly code
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and used by ECOFF and possibly other object file formats. */
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extern unsigned long mips_gprmask;
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extern unsigned long mips_cprmask[4];
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#ifdef OBJ_ELF
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#define elf_tc_final_processing mips_elf_final_processing
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extern void mips_elf_final_processing PARAMS ((void));
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#define ELF_TC_SPECIAL_SECTIONS \
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{ ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".lit4", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".lit8", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".ucode", SHT_MIPS_UCODE, 0 }, \
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{ ".mdebug", SHT_MIPS_DEBUG, 0 },
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/* Other special sections not generated by the assembler: .reginfo,
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.liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn. */
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#endif
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extern void md_mips_end PARAMS ((void));
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#define md_end() md_mips_end()
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#define USE_GLOBAL_POINTER_OPT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
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|| OUTPUT_FLAVOR == bfd_target_elf_flavour)
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extern void mips_pop_insert PARAMS ((void));
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#define md_pop_insert() mips_pop_insert()
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extern void mips_flush_pending_output PARAMS ((void));
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#define md_flush_pending_output mips_flush_pending_output
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extern void mips_enable_auto_align PARAMS ((void));
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#define md_elf_section_change_hook() mips_enable_auto_align()
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extern void mips_init_after_args PARAMS ((void));
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#define tc_init_after_args mips_init_after_args
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#endif /* TC_MIPS */
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