+++ /dev/null
-/* Header file for unwinding stack frames for exception handling. */
-/* Compile this one with gcc. */
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
- Contributed by Jason Merrill <jason@cygnus.com>.
-
-This file is part of GNU CC.
-
-GNU CC 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.
-
-GNU CC 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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-
-/* Number of hardware registers known to the compiler.
- We have 128 general registers, 128 floating point registers, 64 predicate
- registers, 8 branch registers, and one frame pointer register. */
-
-/* ??? Should add ar.lc, ar.ec and probably also ar.pfs. */
-
-#define FIRST_PSEUDO_REGISTER 330
-
-#ifndef DWARF_FRAME_REGISTERS
-#define DWARF_FRAME_REGISTERS FIRST_PSEUDO_REGISTER
-#endif
-
-typedef struct frame_state
-{
- void *cfa;
- void *eh_ptr;
- long cfa_offset;
- long args_size;
- long reg_or_offset[DWARF_FRAME_REGISTERS+1];
- unsigned short cfa_reg;
- unsigned short retaddr_column;
- char saved[DWARF_FRAME_REGISTERS+1];
-} frame_state;
-
-/* Values for 'saved' above. */
-#define REG_UNSAVED 0
-#define REG_SAVED_OFFSET 1
-#define REG_SAVED_REG 2
-
-/* The representation for an "object" to be searched for frame unwind info.
- For targets with named sections, one object is an executable or shared
- library; for other targets, one object is one translation unit.
-
- A copy of this structure declaration is printed by collect2.c;
- keep the copies synchronized! */
-
-struct object {
-#ifdef IA64_UNWIND_INFO
- void *pc_base; /* This field will be set by __do_frame_setup. */
-#endif
- void *pc_begin;
- void *pc_end;
- struct dwarf_fde *fde_begin;
- struct dwarf_fde **fde_array;
- size_t count;
- struct object *next;
-};
-
-/* Called from __throw to find the registers to restore for a given
- PC_TARGET. The caller should allocate a local variable of `struct
- frame_state' (declared in frame.h) and pass its address to STATE_IN.
- Returns NULL on failure, otherwise returns STATE_IN. */
-
-extern struct frame_state *__frame_state_for (void *, struct frame_state *);
-
-#ifdef IA64_UNWIND_INFO
-
-/* 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;
-
-/* This structure represents the start of an unwind information pointer.
- 'unwind_descriptors' is the beginninng of the unwind descriptors, which
- use up 'length' bytes of storage. */
-
-typedef struct unwind_info_ptr
-{
- unsigned short version;
- unsigned short flags;
- unsigned int length;
- unsigned char unwind_descriptors[1];
-} unwind_info_ptr;
-
-
-#define IA64_UNW_LOC_TYPE_NONE 0
-#define IA64_UNW_LOC_TYPE_MEM 1
-#define IA64_UNW_LOC_TYPE_GR 2
-#define IA64_UNW_LOC_TYPE_FR 3
-#define IA64_UNW_LOC_TYPE_BR 4
-#define IA64_UNW_LOC_TYPE_SPOFF 5
-#define IA64_UNW_LOC_TYPE_PSPOFF 6
-#define IA64_UNW_LOC_TYPE_OFFSET 7
-#define IA64_UNW_LOC_TYPE_SPILLBASE 8
-
-typedef struct ia64_reg_loc
-{
- long when; /* PC relative offset from start of function. */
- union { /* In memory or another register? */
- void *mem;
- int regno;
- int offset;
- } l;
- short loc_type; /* Where to find value. */
- short reg_size;
-} ia64_reg_loc;
-
-/* Frame information record. */
-
-typedef struct ia64_frame_state
-{
- ia64_reg_loc gr[4]; /* gr4 to gr7. */
- ia64_reg_loc fr[20]; /* fr2 to fr5, fr16 to fr31. */
- ia64_reg_loc br[5]; /* br1 to br5. */
- ia64_reg_loc rp;
- ia64_reg_loc fpsr;
- ia64_reg_loc bsp;
- ia64_reg_loc bspstore;
- ia64_reg_loc rnat;
- ia64_reg_loc pfs;
- ia64_reg_loc unat;
- ia64_reg_loc lc;
- ia64_reg_loc pr;
- ia64_reg_loc priunat;
- ia64_reg_loc sp;
- ia64_reg_loc psp;
- ia64_reg_loc spill_base;
- void *my_sp;
- void *my_bsp;
-} ia64_frame_state;
-
-
-extern unwind_info_ptr *build_ia64_frame_state (unsigned char *, ia64_frame_state *,
- void *, void *);
-extern void *get_real_reg_value (ia64_reg_loc *);
-extern void *get_personality (unwind_info_ptr *);
-extern void *get_except_table (unwind_info_ptr *);
-extern void set_real_reg_value (ia64_reg_loc *, void *);
-void *calc_caller_bsp (long, unsigned char *);
-
-#endif /* IA64_UNWIND_INFO */
-
-/* Note the following routines are exported interfaces from libgcc; do not
- change these interfaces. Instead create new interfaces. Also note
- references to these functions may be made weak in files where they
- are referenced. */
-
-extern void __register_frame (void * );
-extern void __register_frame_table (void *);
-extern void __deregister_frame (void *);
-
-/* Called either from crtbegin.o or a static constructor to register the
- unwind info for an object or translation unit, respectively. */
-
-extern void __register_frame_info (void *, struct object *);
-
-/* Similar, but BEGIN is actually a pointer to a table of unwind entries
- for different translation units. Called from the file generated by
- collect2. */
-extern void __register_frame_info_table (void *, struct object *);
-
-/* Called from crtend.o to deregister the unwind info for an object. */
-
-extern void *__deregister_frame_info (void *);
-
-
projects / msp430-gcc.git / blobdiff