1 /* This file is tc-alpha.h
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 Free Software Foundation, Inc.
5 Written by Ken Raeburn <raeburn@cygnus.com>.
7 This file is part of GAS, the GNU Assembler.
9 GAS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GAS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GAS; see the file COPYING. If not, write to the Free
21 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
26 #define TARGET_BYTES_BIG_ENDIAN 0
28 #define WORKING_DOT_WORD
30 #define TARGET_ARCH bfd_arch_alpha
33 #define ELF_TARGET_FORMAT "elf64-alpha-freebsd"
35 #ifndef ELF_TARGET_FORMAT
36 #define ELF_TARGET_FORMAT "elf64-alpha"
39 #define TARGET_FORMAT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
40 ? "ecoff-littlealpha" \
41 : OUTPUT_FLAVOR == bfd_target_elf_flavour \
43 : OUTPUT_FLAVOR == bfd_target_evax_flavour \
47 #define NEED_LITERAL_POOL
48 #define REPEAT_CONS_EXPRESSIONS
51 struct alpha_reloc_tag
;
53 extern int alpha_force_relocation (struct fix
*);
54 extern int alpha_fix_adjustable (struct fix
*);
56 extern unsigned long alpha_gprmask
, alpha_fprmask
;
57 extern valueT alpha_gp_value
;
59 #define TC_FORCE_RELOCATION(FIX) alpha_force_relocation (FIX)
60 #define tc_fix_adjustable(FIX) alpha_fix_adjustable (FIX)
61 #define RELOC_REQUIRES_SYMBOL
63 /* Values passed to md_apply_fix don't include the symbol value. */
64 #define MD_APPLY_SYM_VALUE(FIX) 0
66 #define md_convert_frag(b,s,f) as_fatal ("alpha convert_frag\n")
67 #define md_estimate_size_before_relax(f,s) \
68 (as_fatal ("estimate_size_before_relax called"),1)
73 /* This field keeps the symbols position in the link section. */
74 #define OBJ_SYMFIELD_TYPE valueT
76 #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) \
77 fix_new_exp (FRAG, OFF, (int)LEN, EXP, 0, \
78 LEN == 2 ? BFD_RELOC_16 \
79 : LEN == 4 ? BFD_RELOC_32 \
80 : LEN == 8 ? BFD_RELOC_64 \
81 : BFD_RELOC_ALPHA_LINKAGE);
85 #define TC_IMPLICIT_LCOMM_ALIGNMENT(size, align) \
92 while ((size & temp) == 0) \
93 ++align, temp <<= 1; \
99 #define md_number_to_chars number_to_chars_littleendian
101 extern int tc_get_register (int);
102 extern void alpha_frob_ecoff_data (void);
104 #define tc_frob_label(sym) alpha_define_label (sym)
105 extern void alpha_define_label (symbolS
*);
107 #define md_cons_align(nbytes) alpha_cons_align (nbytes)
108 extern void alpha_cons_align (int);
110 #define HANDLE_ALIGN(fragp) alpha_handle_align (fragp)
111 extern void alpha_handle_align (struct frag
*);
113 #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 8)
116 #define tc_frob_file_before_adjust() alpha_frob_file_before_adjust ()
117 extern void alpha_frob_file_before_adjust (void);
120 #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs. */
123 #define md_elf_section_letter alpha_elf_section_letter
124 extern int alpha_elf_section_letter (int, char **);
125 #define md_elf_section_flags alpha_elf_section_flags
126 extern flagword
alpha_elf_section_flags (flagword
, int, int);
129 /* Whether to add support for explicit !relocation_op!sequence_number. At the
130 moment, only do this for ELF, though ECOFF could use it as well. */
136 /* Before the relocations are written, reorder them, so that user
137 supplied !lituse relocations follow the appropriate !literal
138 relocations. Also convert the gas-internal relocations to the
139 appropriate linker relocations. */
140 #define tc_frob_file_before_fix() alpha_before_fix ()
141 extern void alpha_before_fix (void);
144 #define md_end alpha_elf_md_end
145 extern void alpha_elf_md_end (void);
148 /* New fields for supporting explicit relocations (such as !literal to mark
149 where a pointer is loaded from the global table, and !lituse_base to track
150 all of the normal uses of that pointer). */
152 #define TC_FIX_TYPE struct alpha_fix_tag
156 struct fix
*next_reloc
; /* Next !lituse or !gpdisp. */
157 struct alpha_reloc_tag
*info
; /* Other members with same sequence. */
160 /* Initialize the TC_FIX_TYPE field. */
161 #define TC_INIT_FIX_DATA(FIX) \
163 FIX->tc_fix_data.next_reloc = NULL; \
164 FIX->tc_fix_data.info = NULL; \
167 /* Work with DEBUG5 to print fields in tc_fix_type. */
168 #define TC_FIX_DATA_PRINT(STREAM, FIX) \
170 if (FIX->tc_fix_data.info) \
171 fprintf (STREAM, "\tinfo = 0x%lx, next_reloc = 0x%lx\n", \
172 (long) FIX->tc_fix_data.info, \
173 (long) FIX->tc_fix_data.next_reloc); \
176 #define TARGET_USE_CFIPOP 1
178 #define tc_cfi_frame_initial_instructions alpha_cfi_frame_initial_instructions
179 extern void alpha_cfi_frame_initial_instructions (void);
181 #define DWARF2_LINE_MIN_INSN_LENGTH 4
182 #define DWARF2_DEFAULT_RETURN_COLUMN 26
183 #define DWARF2_CIE_DATA_ALIGNMENT (-8)
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