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2fc8bdacf3
* config/tc-arm.c (T_OPCODE_BRANCH, encode_arm_addr_mode_2) (encode_arm_addr_mode_3, encode_arm_cp_address, do_blx, do_t_blx) (do_t_branch, insns [b, bl]): Don't encode pipeline offset. (s_arm_elf_cons): Disallow use of (plt) suffix. (do_adrl): Adjust X_add_number unconditionally. (md_pcrel_from): Rename md_pcrel_from_section, add second segT argument. Handle all adjustment for pipeline offset here. (md_apply_fix): No need to undo work of md_pcrel_from. No need to extract pre-encoded pipeline adjustments from various branch instructions. Generally, assume instructions are already all-bits-zero in the field being fixed up. Remove all OBJ_ELF special cases. Handle BFD_RELOC_ARM_PLT32 like BFD_RELOC_ARM_PCREL_BRANCH. (tc_gen_reloc): Remove OBJ_ELF special case. * config/tc-arm.c: Define MD_PCREL_FROM_SECTION. gas/testsuite: * gas/arm/arm.exp: Don't special case ldconst, arm7t, or copro for *-wince-*. * gas/arm/wince_arm7t.d, gas/arm/wince_copro.d * gas/arm/wince_ldconst.d: Delete.
236 lines
8.0 KiB
C
236 lines
8.0 KiB
C
/* This file is tc-arm.h
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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2004 Free Software Foundation, Inc.
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Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
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Modified by David Taylor (dtaylor@armltd.co.uk)
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This file is part of GAS, the GNU Assembler.
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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, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#define TC_ARM 1
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#ifndef TARGET_BYTES_BIG_ENDIAN
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#define TARGET_BYTES_BIG_ENDIAN 0
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#endif
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#define WORKING_DOT_WORD
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#define COFF_MAGIC ARMMAGIC
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#define TARGET_ARCH bfd_arch_arm
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#define AOUT_MACHTYPE 0
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#define DIFF_EXPR_OK
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#ifdef LITTLE_ENDIAN
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#undef LITTLE_ENDIAN
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#endif
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#ifdef BIG_ENDIAN
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#undef BIG_ENDIAN
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#endif
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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struct fix;
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#if defined OBJ_AOUT
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# if defined TE_RISCIX
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# define TARGET_FORMAT "a.out-riscix"
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# elif defined TE_LINUX
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# define ARM_BI_ENDIAN
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# define TARGET_FORMAT "a.out-arm-linux"
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# elif defined TE_NetBSD
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# define TARGET_FORMAT "a.out-arm-netbsd"
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# else
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# define ARM_BI_ENDIAN
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# define TARGET_FORMAT (target_big_endian ? "a.out-arm-big" : "a.out-arm-little")
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# endif
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#elif defined OBJ_AIF
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# define TARGET_FORMAT "aif"
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#elif defined OBJ_COFF
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# define ARM_BI_ENDIAN
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# if defined TE_PE
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# if defined TE_EPOC
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# define TARGET_FORMAT (target_big_endian ? "epoc-pe-arm-big" : "epoc-pe-arm-little")
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# else
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# define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little")
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# endif
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# else
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# define TARGET_FORMAT (target_big_endian ? "coff-arm-big" : "coff-arm-little")
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# endif
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#elif defined OBJ_ELF
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# define ARM_BI_ENDIAN
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# define TARGET_FORMAT elf32_arm_target_format ()
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#endif
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#define TC_FORCE_RELOCATION(FIX) arm_force_relocation (FIX)
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#define md_convert_frag(b, s, f) { as_fatal (_("arm convert_frag\n")); }
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#define md_cleanup() arm_cleanup ()
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#define md_start_line_hook() arm_start_line_hook ()
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#define tc_frob_label(S) arm_frob_label (S)
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/* We also need to mark assembler created symbols: */
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#define tc_frob_fake_label(S) arm_frob_label (S)
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/* NOTE: The fake label creation in stabs.c:s_stab_generic() has
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deliberately not been updated to mark assembler created stabs
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symbols as Thumb. */
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#define TC_FIX_TYPE int
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#define TC_INIT_FIX_DATA(FIX) ((FIX)->tc_fix_data = 0)
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/* We need to keep some local information on symbols. */
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#define TC_SYMFIELD_TYPE unsigned int
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#define ARM_GET_FLAG(s) (*symbol_get_tc (s))
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#define ARM_SET_FLAG(s,v) (*symbol_get_tc (s) |= (v))
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#define ARM_RESET_FLAG(s,v) (*symbol_get_tc (s) &= ~(v))
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#define ARM_FLAG_THUMB (1 << 0) /* The symbol is a Thumb symbol rather than an Arm symbol. */
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#define ARM_FLAG_INTERWORK (1 << 1) /* The symbol is attached to code that supports interworking. */
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#define THUMB_FLAG_FUNC (1 << 2) /* The symbol is attached to the start of a Thumb function. */
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#define ARM_IS_THUMB(s) (ARM_GET_FLAG (s) & ARM_FLAG_THUMB)
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#define ARM_IS_INTERWORK(s) (ARM_GET_FLAG (s) & ARM_FLAG_INTERWORK)
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#define THUMB_IS_FUNC(s) (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)
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#define ARM_SET_THUMB(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_THUMB) : ARM_RESET_FLAG (s, ARM_FLAG_THUMB))
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#define ARM_SET_INTERWORK(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_INTERWORK) : ARM_RESET_FLAG (s, ARM_FLAG_INTERWORK))
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#define THUMB_SET_FUNC(s,t) ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC) : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC))
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#define TC_START_LABEL(C,STR) (c == ':' || (c == '/' && arm_data_in_code ()))
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#define tc_canonicalize_symbol_name(str) arm_canonicalize_symbol_name (str);
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#define obj_adjust_symtab() arm_adjust_symtab ()
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#define tc_aout_pre_write_hook(x) {;} /* not used */
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#define LISTING_HEADER "ARM GAS "
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#define OPTIONAL_REGISTER_PREFIX '%'
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#define LOCAL_LABEL(name) (name[0] == '.' && name[1] == 'L')
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#define LOCAL_LABELS_FB 1
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/* This expression evaluates to true if the relocation is for a local
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object for which we still want to do the relocation at runtime.
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False if we are willing to perform this relocation while building
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the .o file. GOTOFF does not need to be checked here because it is
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not pcrel. I am not sure if some of the others are ever used with
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pcrel, but it is easier to be safe than sorry. */
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#define TC_FORCE_RELOCATION_LOCAL(FIX) \
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(!(FIX)->fx_pcrel \
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|| (FIX)->fx_plt \
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|| (FIX)->fx_r_type == BFD_RELOC_ARM_GOT32 \
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|| (FIX)->fx_r_type == BFD_RELOC_32 \
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|| TC_FORCE_RELOCATION (FIX))
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#define TC_CONS_FIX_NEW cons_fix_new_arm
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#define MAX_MEM_FOR_RS_ALIGN_CODE 31
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/* For frags in code sections we need to record whether they contain
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ARM code or THUMB code. This is that if they have to be aligned,
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they can contain the correct type of no-op instruction. */
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#define TC_FRAG_TYPE int
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#define TC_FRAG_INIT(fragp) arm_init_frag (fragp)
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#define HANDLE_ALIGN(fragp) arm_handle_align (fragp)
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#define md_do_align(N, FILL, LEN, MAX, LABEL) \
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if (FILL == NULL && (N) != 0 && ! need_pass_2 && subseg_text_p (now_seg)) \
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{ \
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arm_frag_align_code (N, MAX); \
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goto LABEL; \
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}
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#ifdef OBJ_ELF
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# define DWARF2_LINE_MIN_INSN_LENGTH 2
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# define obj_frob_symbol(sym, punt) armelf_frob_symbol ((sym), & (punt))
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# define md_elf_section_change_hook() arm_elf_change_section ()
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# define md_elf_section_type(str, len) arm_elf_section_type (str, len)
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# define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
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# define TC_SEGMENT_INFO_TYPE struct arm_segment_info_type
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enum mstate
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{
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MAP_UNDEFINED = 0, /* Must be zero, for seginfo in new sections. */
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MAP_DATA,
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MAP_ARM,
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MAP_THUMB
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};
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struct arm_segment_info_type
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{
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enum mstate mapstate;
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unsigned int marked_pr_dependency;
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};
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/* We want .cfi_* pseudo-ops for generating unwind info. */
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#define TARGET_USE_CFIPOP 1
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/* The lr register is r14. */
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#define DWARF2_DEFAULT_RETURN_COLUMN 14
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/* Registers are generally saved at negative offsets to the CFA. */
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#define DWARF2_CIE_DATA_ALIGNMENT -4
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/* CFI hooks. */
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#define tc_regname_to_dw2regnum tc_arm_regname_to_dw2regnum
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#define tc_cfi_frame_initial_instructions tc_arm_frame_initial_instructions
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#else /* Not OBJ_ELF. */
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#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
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#endif
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#if defined OBJ_ELF || defined OBJ_COFF
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# define EXTERN_FORCE_RELOC 1
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# define tc_fix_adjustable(FIX) arm_fix_adjustable (FIX)
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/* Values passed to md_apply_fix don't include the symbol value. */
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# define MD_APPLY_SYM_VALUE(FIX) 0
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# define TC_VALIDATE_FIX(FIX, SEGTYPE, LABEL) arm_validate_fix (FIX)
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#endif
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#define MD_PCREL_FROM_SECTION(F,S) md_pcrel_from_section(F,S)
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extern long md_pcrel_from_section (struct fix *, segT);
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extern void arm_frag_align_code (int, int);
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extern void arm_validate_fix (struct fix *);
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extern const char * elf32_arm_target_format (void);
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extern void arm_elf_change_section (void);
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extern int arm_force_relocation (struct fix *);
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extern void arm_cleanup (void);
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extern void arm_start_line_hook (void);
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extern void arm_frob_label (symbolS *);
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extern int arm_data_in_code (void);
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extern char * arm_canonicalize_symbol_name (char *);
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extern void arm_adjust_symtab (void);
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extern void armelf_frob_symbol (symbolS *, int *);
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extern void cons_fix_new_arm (fragS *, int, int, expressionS *);
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extern void arm_init_frag (struct frag *);
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extern void arm_handle_align (struct frag *);
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extern bfd_boolean arm_fix_adjustable (struct fix *);
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extern int arm_elf_section_type (const char *, size_t);
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extern int tc_arm_regname_to_dw2regnum (const char *regname);
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extern void tc_arm_frame_initial_instructions (void);
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