darling-gdb/gdb/dwarf2cfi.h
Andrew Cagney da3331ec16 2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
	* gdbarch.h: Regnerate.
	* symtab.h: Add missing opaque declarations.
	* value.h, target.h, symfile.h, stabsread.h: Ditto.
	* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
	* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
	* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
	* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
	* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
	* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
	* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
	* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
	* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
	* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
	* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
	* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-12 17:41:26 +00:00

103 lines
2.9 KiB
C

/* Stack unwinding code based on dwarf2 frame info for GDB, the GNU debugger.
Copyright 2001
Free Software Foundation, Inc.
This file is part of GDB.
This program 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef DWARF2CFI_H
#define DWARF2CFI_H
struct frame_info;
struct context_reg
{
union
{
unsigned int reg;
long offset;
CORE_ADDR addr;
}
loc;
enum
{
REG_CTX_UNSAVED,
REG_CTX_SAVED_OFFSET,
REG_CTX_SAVED_REG,
REG_CTX_SAVED_ADDR,
REG_CTX_VALUE,
}
how;
};
/* This is the register and unwind state for a particular frame. */
struct context
{
struct context_reg *reg;
CORE_ADDR cfa;
CORE_ADDR ra;
void *lsda;
int args_size;
};
/* Return the frame address. */
CORE_ADDR cfi_read_fp ();
/* Store the frame address. */
void cfi_write_fp (CORE_ADDR val);
/* Restore the machine to the state it had before the current frame
was created. */
void cfi_pop_frame (struct frame_info *);
/* Determine the address of the calling function's frame. */
CORE_ADDR cfi_frame_chain (struct frame_info *fi);
/* Sets the pc of the frame. */
CORE_ADDR cfi_init_frame_pc (int fromleaf, struct frame_info *fi);
/* Initialize unwind context informations of the frame. */
void cfi_init_extra_frame_info (int fromleaf, struct frame_info *fi);
/* Obtain return address of the frame. */
CORE_ADDR cfi_get_ra (struct frame_info *fi);
/* Find register number REGNUM relative to FRAME and put its
(raw) contents in *RAW_BUFFER. Set *OPTIMIZED if the variable
was optimized out (and thus can't be fetched). If the variable
was fetched from memory, set *ADDRP to where it was fetched from,
otherwise it was fetched from a register.
The argument RAW_BUFFER must point to aligned memory. */
void cfi_get_saved_register (char *raw_buffer,
int *optimized,
CORE_ADDR *addrp,
struct frame_info *frame,
int regnum, enum lval_type *lval);
/* Return the register that the function uses for a frame pointer,
plus any necessary offset to be applied to the register before
any frame pointer offsets. */
void cfi_virtual_frame_pointer (CORE_ADDR pc, int *frame_regnum,
LONGEST * frame_offset);
struct context *context_alloc ();
void context_cpy (struct context *dst, struct context *src);
struct frame_state *frame_state_alloc ();
#endif