mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-25 11:04:18 +08:00
101 lines
2.9 KiB
C
101 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 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. */
|
|
void 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
|