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binutils-gdb/gas/config/tc-ia64.h

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/* tc-ia64.h -- Header file for tc-ia64.c.
Copyright 1998, 1999, 2000, 2001, 2002 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
/* Linux is little endian by default. HPUX is big endian by default. */
#ifdef TE_HPUX
#define TARGET_BYTES_BIG_ENDIAN 1
#define MD_FLAGS_DEFAULT EF_IA_64_BE
#else
#define TARGET_BYTES_BIG_ENDIAN 0
#define MD_FLAGS_DEFAULT EF_IA_64_ABI64
#endif /* TE_HPUX */
extern void (*ia64_number_to_chars) PARAMS ((char *, valueT, int));
#define md_number_to_chars (*ia64_number_to_chars)
extern void ia64_elf_section_change_hook PARAMS ((void));
#define md_elf_section_change_hook ia64_elf_section_change_hook
/* We record the endian for this section. 0 means default, 1 means
big endian and 2 means little endian. */
struct ia64_segment_info_type
{
unsigned int endian : 2;
};
#define TC_SEGMENT_INFO_TYPE struct ia64_segment_info_type
extern void ia64_adjust_symtab PARAMS ((void));
#define tc_adjust_symtab() ia64_adjust_symtab ()
extern void ia64_frob_file PARAMS ((void));
#define tc_frob_file() ia64_frob_file ()
/* We need to set the default object file format in ia64_init and not in
md_begin. This is because parse_args is called before md_begin, and we
do not want md_begin to wipe out the flag settings set by options parsed in
md_parse_args. */
#define HOST_SPECIAL_INIT ia64_init
extern void ia64_init PARAMS ((int, char **));
#define TARGET_FORMAT ia64_target_format()
extern const char *ia64_target_format PARAMS ((void));
#define TARGET_ARCH bfd_arch_ia64
#define DOUBLESLASH_LINE_COMMENTS /* allow //-style comments */
#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 */
#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
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 int ia64_elf_section_letter PARAMS ((int, char **));
extern flagword ia64_elf_section_flags PARAMS ((flagword, int, int));
extern int ia64_elf_section_type PARAMS ((const char *, size_t len));
extern long ia64_pcrel_from_section PARAMS ((struct fix *fix, segT sec));
extern void ia64_md_do_align PARAMS ((int, const char *, int, int));
extern void ia64_handle_align PARAMS ((fragS *f));
extern void ia64_after_parse_args PARAMS ((void));
extern void ia64_dwarf2_emit_offset PARAMS ((symbolS *, unsigned int));
extern void ia64_check_label PARAMS ((symbolS *));
#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,c) ia64_parse_name (s, e)
#define tc_canonicalize_symbol_name(s) ia64_canonicalize_symbol_name (s)
#define tc_canonicalize_section_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_APPLY_SYM_VALUE(FIX) 0
#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_letter ia64_elf_section_letter
#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_section_align(seg,size) (size)
#define md_do_align(n,f,l,m,j) ia64_md_do_align (n,f,l,m)
#define HANDLE_ALIGN(f) ia64_handle_align (f)
#define md_elf_section_type(str,len) ia64_elf_section_type (str, len)
#define md_after_parse_args() ia64_after_parse_args ()
#define TC_DWARF2_EMIT_OFFSET ia64_dwarf2_emit_offset
#define tc_check_label(l) ia64_check_label (l)
#define MAX_MEM_FOR_RS_ALIGN_CODE (15 + 16)
#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 },
#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, unwabi
} 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 grmask;
unsigned short grsave;
/* masks to represent the union of save.g, save.f, save.b, and
save.gf: */
unsigned long imask_size;
struct
{
unsigned char *i;
unsigned long fr_mem;
unsigned char gr_mem;
unsigned char br_mem;
} mask;
} 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;
unsigned char abi;
unsigned char context;
} 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 ab; /* Value of the AB field.. */
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;
/* This expression evaluates to true if the relocation is for a local
object for which we still want to do the relocation at runtime.
False if we are willing to perform this relocation while building
the .o file. */
/* If the reloc type is BFD_RELOC_UNUSED, then this is for a TAG13/TAG13b field
which has no external reloc, so we must resolve the value now. */
#define TC_FORCE_RELOCATION_LOCAL(FIX) \
((FIX)->fx_r_type != BFD_RELOC_UNUSED \
&& (!(FIX)->fx_pcrel \
|| (FIX)->fx_plt \
|| TC_FORCE_RELOCATION (FIX)))
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