IA-64 ELF support.

1 files changed, 218 insertions, 0 deletions

diff --git a/gas/config/tc-ia64.h b/gas/config/tc-ia64.h
new file mode 100644
index 0000000..db8d7a4
--- /dev/null
+++ b/gas/config/tc-ia64.h
@@ -0,0 +1,218 @@
+/* tc-ia64.h -- Header file for tc-ia64.c.
+   Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+   This file is part of GAS, the GNU Assembler.
+
+   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. */
+
+#include <opcode/ia64.h>
+#include <elf/ia64.h>
+
+#define TC_IA64
+
+#define TARGET_FORMAT (OUTPUT_FLAVOR == bfd_target_elf_flavour		\
+		       ? "elf64-ia64-little"				\
+		       : "unknown-format")
+
+#define TARGET_ARCH			bfd_arch_ia64
+#define TARGET_BYTES_BIG_ENDIAN		0
+#define DOUBLESLASH_LINE_COMMENTS	/* allow //-style comments */
+#define md_number_to_chars		number_to_chars_littleendian
+#define TC_HANDLES_FX_DONE
+
+#define NEED_LITERAL_POOL		/* need gp literal pool */
+#define RELOC_REQUIRES_SYMBOL
+#define DIFF_EXPR_OK   /* foo-. gets turned into PC relative relocs */
+#define NEED_INDEX_OPERATOR		/* [ ] is index operator */
+
+#define QUOTES_IN_INSN			/* allow `string "foo;bar"' */
+#define LEX_AT		LEX_NAME	/* allow `@' inside name */
+#define LEX_QM		LEX_NAME	/* allow `?' inside name */
+#define LEX_HASH	LEX_END_NAME	/* allow `#' ending a name */
+
+struct ia64_fix
+  {
+    int bigendian;			/* byte order at fix location */
+    enum ia64_opnd opnd;
+  };
+
+extern void ia64_do_align PARAMS((int n));
+extern void ia64_end_of_source PARAMS((void));
+extern void ia64_start_line PARAMS((void));
+extern int ia64_unrecognized_line PARAMS((int ch));
+extern void ia64_frob_label PARAMS((struct symbol *sym));
+extern void ia64_flush_pending_output PARAMS((void));
+extern int ia64_parse_name (char *name, expressionS *e);
+extern int ia64_optimize_expr PARAMS((expressionS *l, operatorT op,
+				      expressionS *r));
+extern void ia64_cons_align PARAMS((int));
+extern void ia64_flush_insns PARAMS((void));
+extern int ia64_fix_adjustable PARAMS((struct fix *fix));
+extern int ia64_force_relocation PARAMS((struct fix *));
+extern void ia64_cons_fix_new PARAMS ((fragS *f, int where, int nbytes,
+				       expressionS *exp));
+extern void ia64_validate_fix PARAMS ((struct fix *fix));
+extern char * ia64_canonicalize_symbol_name PARAMS ((char *));
+extern flagword ia64_elf_section_flags PARAMS ((flagword, int, int));
+extern long ia64_pcrel_from_section PARAMS ((struct fix *fix, segT sec));
+extern int ia64_md_do_align PARAMS ((int, const char *, int, int));
+
+#define md_end()       			ia64_end_of_source ()
+#define md_start_line_hook()		ia64_start_line ()
+#define tc_unrecognized_line(ch)	ia64_unrecognized_line (ch)
+#define tc_frob_label(s)		ia64_frob_label (s)
+#define md_flush_pending_output()	ia64_flush_pending_output ()
+#define md_parse_name(s,e)		ia64_parse_name (s, e)
+#define tc_canonicalize_symbol_name(s)	ia64_canonicalize_symbol_name (s)
+#define md_optimize_expr(l,o,r)		ia64_optimize_expr (l, o, r)
+#define md_cons_align(n)		ia64_cons_align (n)
+#define TC_FORCE_RELOCATION(f)		ia64_force_relocation (f)
+#define tc_fix_adjustable(f)		ia64_fix_adjustable (f)
+#define md_convert_frag(b,s,f)		as_fatal ("ia64_convert_frag")
+#define md_create_long_jump(p,f,t,fr,s)	as_fatal("ia64_create_long_jump")
+#define md_create_short_jump(p,f,t,fr,s) \
+					as_fatal("ia64_create_short_jump")
+#define md_estimate_size_before_relax(f,s) \
+			(as_fatal ("ia64_estimate_size_before_relax"), 1)
+#define md_elf_section_flags		ia64_elf_section_flags
+#define TC_FIX_TYPE			struct ia64_fix
+#define TC_INIT_FIX_DATA(f)		{ f->tc_fix_data.opnd = 0; }
+#define TC_CONS_FIX_NEW(f,o,l,e)	ia64_cons_fix_new (f, o, l, e)
+#define TC_VALIDATE_FIX(fix,seg,skip)	ia64_validate_fix (fix)
+#define MD_PCREL_FROM_SECTION(fix,sec)	ia64_pcrel_from_section (fix, sec)
+#define md_do_align(n,f,l,m,j)		if (ia64_md_do_align (n,f,l,m)) goto j
+
+/* Call md_apply_fix3 with segment instead of md_apply_fix.  */
+#define MD_APPLY_FIX3
+
+#define WORKING_DOT_WORD	/* don't do broken word processing for now */
+
+#define ELF_TC_SPECIAL_SECTIONS						   \
+{ ".sbss",	SHT_NOBITS,	SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT }, \
+{ ".sdata",	SHT_PROGBITS,	SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT }, \
+{ ".IA_64.unwind",	SHT_IA_64_UNWIND,	SHF_ALLOC }, \
+{ ".IA_64.unwind_info",	SHT_PROGBITS,		SHF_ALLOC },
+
+#define DWARF2_LINE_MIN_INSN_LENGTH 1	/* so slot-multipliers can be 1 */
+
+/* This is the information required for unwind records in an ia64
+   object file. This is required by GAS and the compiler runtime. */
+
+/* These are the starting point masks for the various types of
+   unwind records. To create a record of type R3 for instance, one
+   starts by using the value UNW_R3 and or-ing in any other required values. 
+   These values are also unique (in context), so they can be used to identify 
+   the various record types as well. UNW_Bx and some UNW_Px do have the
+   same value, but Px can only occur in a prologue context, and Bx in
+   a body context.  */
+
+#define UNW_R1	0x00
+#define UNW_R2	0x40
+#define UNW_R3	0x60
+#define UNW_P1	0x80
+#define UNW_P2	0xA0
+#define UNW_P3	0xB0
+#define UNW_P4	0xB8
+#define UNW_P5	0xB9
+#define UNW_P6	0xC0
+#define UNW_P7	0xE0
+#define UNW_P8	0xF0
+#define UNW_P9	0xF1
+#define UNW_P10	0xFF
+#define UNW_X1	0xF9
+#define UNW_X2	0xFA
+#define UNW_X3	0xFB
+#define UNW_X4	0xFC
+#define UNW_B1	0x80
+#define UNW_B2	0xC0
+#define UNW_B3	0xE0
+#define UNW_B4	0xF0
+
+/* These are all the various types of unwind records.  */
+
+typedef enum
+{
+  prologue, prologue_gr, body, mem_stack_f, mem_stack_v, psp_gr, psp_sprel,
+  rp_when, rp_gr, rp_br, rp_psprel, rp_sprel, pfs_when, pfs_gr, pfs_psprel,
+  pfs_sprel, preds_when, preds_gr, preds_psprel, preds_sprel,
+  fr_mem, frgr_mem, gr_gr, gr_mem, br_mem, br_gr, spill_base, spill_mask,
+  unat_when, unat_gr, unat_psprel, unat_sprel, lc_when, lc_gr, lc_psprel,
+  lc_sprel, fpsr_when, fpsr_gr, fpsr_psprel, fpsr_sprel, 
+  priunat_when_gr, priunat_when_mem, priunat_gr, priunat_psprel, 
+  priunat_sprel, bsp_when, bsp_gr, bsp_psprel, bsp_sprel, bspstore_when,
+  bspstore_gr, bspstore_psprel, bspstore_sprel, rnat_when, rnat_gr,
+  rnat_psprel, rnat_sprel, epilogue, label_state, copy_state,
+  spill_psprel, spill_sprel, spill_reg, spill_psprel_p, spill_sprel_p,
+  spill_reg_p
+} unw_record_type;
+
+
+/* These structures declare the fields that can be used in each of the 
+   4 record formats, R, P, B and X.  */
+
+typedef struct unw_r_record
+{
+  unsigned long rlen;
+  unsigned short mask;
+  unsigned short grsave;
+} unw_r_record;
+
+typedef struct unw_p_record
+{
+  void *imask;
+  unsigned long t;
+  unsigned long size;
+  unsigned long spoff;
+  unsigned long br;
+  unsigned long pspoff;
+  unsigned short gr;
+  unsigned short rmask;
+  unsigned short grmask;
+  unsigned long frmask;
+  unsigned short brmask;
+} unw_p_record;
+
+typedef struct unw_b_record
+{
+  unsigned long t;
+  unsigned long label;
+  unsigned short ecount;
+} unw_b_record;
+
+typedef struct unw_x_record
+{
+  unsigned long t;
+  unsigned long spoff;
+  unsigned long pspoff;
+  unsigned short reg;
+  unsigned short treg;
+  unsigned short qp;
+  unsigned short xy;   /* Value of the XY field..  */
+} unw_x_record;
+
+/* This structure is used to determine the specific record type and 
+   its fields.  */
+typedef struct unwind_record
+{
+  unw_record_type type;
+  union {
+    unw_r_record r;
+    unw_p_record p;
+    unw_b_record b;
+    unw_x_record x;
+  } record;
+} unwind_record;