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https://sourceware.org/git/binutils-gdb.git
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1b0ba10226
* target.h (target_read_partial, target_write_partial) (do_xfer_memory, xfer_memory, target_read, target_write) (get_target_memory): For buffers, change "void*" to gdb_byte. (struct target_ops): Ditto for to_xfer_partial and deprecated_xfer_memory. * dcache.h (dcache_xfer_memory): Ditto. * target.c (default_xfer_partial, target_read_partial) (target_write_partial, target_read, target_write) (do_xfer_memory, update_current_target, get_target_memory): Update. (target_read_string): Change buf to a gdb_byte. * dcache.c (dcache_xfer_memory): Update. * exec.c (xfer_memory): Make buffer type to gdb_byte. * mem-break.c (default_memory_insert_breakpoint): Remove cast. * disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* Simulate breakpoints by patching locations in the target system, for GDB.
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Copyright 1990, 1991, 1992, 1993, 1995, 1997, 1998, 1999, 2000,
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2002 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by John Gilmore.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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/* This file is only useful if BREAKPOINT_FROM_PC is set. If not, we
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punt. */
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#include "symtab.h"
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#include "breakpoint.h"
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#include "inferior.h"
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#include "target.h"
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/* Insert a breakpoint on targets that don't have any better breakpoint
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support. We read the contents of the target location and stash it,
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then overwrite it with a breakpoint instruction. ADDR is the target
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location in the target machine. CONTENTS_CACHE is a pointer to
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memory allocated for saving the target contents. It is guaranteed
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by the caller to be long enough to save BREAKPOINT_LEN bytes (this
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is accomplished via BREAKPOINT_MAX). */
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int
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default_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
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{
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int val;
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const unsigned char *bp;
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int bplen;
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/* Determine appropriate breakpoint contents and size for this address. */
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bp = BREAKPOINT_FROM_PC (&addr, &bplen);
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if (bp == NULL)
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error (_("Software breakpoints not implemented for this target."));
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/* Save the memory contents. */
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val = target_read_memory (addr, contents_cache, bplen);
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/* Write the breakpoint. */
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if (val == 0)
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val = target_write_memory (addr, bp, bplen);
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return val;
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}
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int
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default_memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
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{
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const bfd_byte *bp;
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int bplen;
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/* Determine appropriate breakpoint contents and size for this address. */
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bp = BREAKPOINT_FROM_PC (&addr, &bplen);
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if (bp == NULL)
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error (_("Software breakpoints not implemented for this target."));
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return target_write_memory (addr, contents_cache, bplen);
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}
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int
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memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
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{
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return MEMORY_INSERT_BREAKPOINT(addr, contents_cache);
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}
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int
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memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
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{
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return MEMORY_REMOVE_BREAKPOINT(addr, contents_cache);
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}
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