/* This file is tc-alpha.h
- Copyright (C) 1994 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
Written by Ken Raeburn <raeburn@cygnus.com>.
This file is part of GAS, the GNU Assembler.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
#define TC_ALPHA
+#define TARGET_BYTES_BIG_ENDIAN 0
+
+#define WORKING_DOT_WORD
+
#define TARGET_ARCH bfd_arch_alpha
#define TARGET_FORMAT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
? "ecoff-littlealpha" \
: OUTPUT_FLAVOR == bfd_target_elf_flavour \
? "elf64-alpha" \
+ : OUTPUT_FLAVOR == bfd_target_evax_flavour \
+ ? "vms-alpha" \
: "unknown-format")
#define NEED_LITERAL_POOL
-#define TC_HANDLES_FX_DONE
#define REPEAT_CONS_EXPRESSIONS
+extern void alpha_validate_fix PARAMS ((struct fix *));
extern int alpha_force_relocation PARAMS ((struct fix *));
extern int alpha_fix_adjustable PARAMS ((struct fix *));
extern unsigned long alpha_gprmask, alpha_fprmask;
extern valueT alpha_gp_value;
+#ifdef OBJ_ELF
+#define TC_VALIDATE_FIX(FIXP,SEGTYPE,SKIP) alpha_validate_fix (FIXP)
+#endif
+
#define TC_FORCE_RELOCATION(FIXP) alpha_force_relocation (FIXP)
#define tc_fix_adjustable(FIXP) alpha_fix_adjustable (FIXP)
#define RELOC_REQUIRES_SYMBOL
+/* This expression evaluates to false if the relocation is for a local
+ object for which we still want to do the relocation at runtime.
+ True if we are willing to perform this relocation while building
+ the .o file. This is only used for pcrel relocations. */
+
+#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
+ ((FIX)->fx_addsy == NULL \
+ || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
+ && ! S_IS_WEAK ((FIX)->fx_addsy) \
+ && S_IS_DEFINED ((FIX)->fx_addsy) \
+ && ! S_IS_COMMON ((FIX)->fx_addsy)))
+
#define md_convert_frag(b,s,f) as_fatal ("alpha convert_frag\n")
-#define md_create_long_jump(p,f,t,fr,s) as_fatal("alpha_create_long_jump")
-#define md_create_short_jump(p,f,t,fr,s) as_fatal("alpha_create_short_jump")
#define md_estimate_size_before_relax(f,s) \
- (as_fatal("estimate_size_before_relax called"),1)
-#define md_operand(x) 0
+ (as_fatal ("estimate_size_before_relax called"),1)
+#define md_operand(x)
-extern unsigned long md_section_align PARAMS ((segT, unsigned long));
+#ifdef OBJ_EVAX
-#define md_undefined_symbol(name) (0)
+/* This field keeps the symbols position in the link section. */
+#define OBJ_SYMFIELD_TYPE valueT
-#define LOCAL_LABEL(name) ((name)[0] == 'L')
+#define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) \
+ fix_new_exp (FRAG, OFF, (int)LEN, EXP, 0, \
+ LEN == 2 ? BFD_RELOC_16 \
+ : LEN == 4 ? BFD_RELOC_32 \
+ : LEN == 8 ? BFD_RELOC_64 \
+ : BFD_RELOC_ALPHA_LINKAGE);
+#endif
#define md_number_to_chars number_to_chars_littleendian
-extern int alpha_do_align ();
-#define md_do_align(n,fill,l) if (alpha_do_align(n,fill)) goto l
-
-extern void alpha_frob_file ();
-#define tc_frob_file alpha_frob_file
+extern int tc_get_register PARAMS ((int frame));
+extern void alpha_frob_ecoff_data PARAMS ((void));
+
+#define tc_frob_label(sym) alpha_define_label (sym)
+extern void alpha_define_label PARAMS ((symbolS *));
+
+#define md_cons_align(nbytes) alpha_cons_align (nbytes)
+extern void alpha_cons_align PARAMS ((int));
+
+#define HANDLE_ALIGN(fragp) alpha_handle_align (fragp)
+extern void alpha_handle_align PARAMS ((struct frag *));
+
+#define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 8)
+
+#ifdef OBJ_ECOFF
+#define tc_frob_file_before_adjust() alpha_frob_file_before_adjust ()
+extern void alpha_frob_file_before_adjust PARAMS ((void));
+#endif
+
+#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
+
+#ifdef OBJ_ELF
+#define ELF_TC_SPECIAL_SECTIONS \
+ { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL }, \
+ { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
+
+#define md_elf_section_letter alpha_elf_section_letter
+extern int alpha_elf_section_letter PARAMS ((int, char **));
+#define md_elf_section_flags alpha_elf_section_flags
+extern flagword alpha_elf_section_flags PARAMS ((flagword, int, int));
+#endif
+
+/* Whether to add support for explict !relocation_op!sequence_number. At the
+ moment, only do this for ELF, though ECOFF could use it as well. */
+
+#ifdef OBJ_ELF
+#define RELOC_OP_P
+#endif
+
+/* Before the relocations are written, reorder them, so that user
+ supplied !lituse relocations follow the appropriate !literal
+ relocations. Also convert the gas-internal relocations to the
+ appropriate linker relocations. */
+#define tc_adjust_symtab() alpha_adjust_symtab ()
+extern void alpha_adjust_symtab PARAMS ((void));
+
+/* New fields for supporting explicit relocations (such as !literal to mark
+ where a pointer is loaded from the global table, and !lituse_base to track
+ all of the normal uses of that pointer). */
+
+#define TC_FIX_TYPE struct alpha_fix_tag
+
+struct alpha_fix_tag
+{
+ struct fix *next_reloc; /* next !lituse or !gpdisp */
+ struct alpha_reloc_tag *info; /* other members with same sequence */
+};
+
+/* Initialize the TC_FIX_TYPE field. */
+#define TC_INIT_FIX_DATA(fixP) \
+do { \
+ fixP->tc_fix_data.next_reloc = (struct fix *)0; \
+ fixP->tc_fix_data.info = (struct alpha_literal_tag *)0; \
+} while (0)
+
+/* Work with DEBUG5 to print fields in tc_fix_type. */
+#define TC_FIX_DATA_PRINT(stream,fixP) \
+do { \
+ if (fixP->tc_fix_data.info) \
+ fprintf (stderr, "\tinfo = 0x%lx, next_reloc = 0x%lx\n", \
+ (long)fixP->tc_fix_data.info, \
+ (long)fixP->tc_fix_data.next_reloc); \
+} while (0)
+
+#define DWARF2_LINE_MIN_INSN_LENGTH 4
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