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https://sourceware.org/git/binutils-gdb.git
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aaab4dba86
* arch-utils.h (legacy_breakpoint_from_pc): Delete declaration. * target.h (memory_breakpoint_from_pc): Delete declaration. * mem-break.c (memory_breakpoint_from_pc): Delete function. * arch-utils.c (legacy_breakpoint_from_pc): Delete function. * monitor.c (monitor_insert_breakpoint): Use gdbarch_breakpoint_from_pc instead of memory_breakpoint_from_pc. * gdbarch.sh (BREAKPOINT_FROM_PC): Do not provide a default. * gdbarch.h, gdbarch.c: Re-generate. * sparc-tdep.c (sparc_breakpoint_from_pc): New function. (sparc_gdbarch_init): Set breakpoint_from_pc to sparc_breakpoint_from_pc. * config/sparc/tm-sparc.h (BREAKPOINT): Delete macro. (BREAKPOINT_FROM_PC): Define. (sparc_breakpoint_from_pc): Declare. * hppa-tdep.c (hppa_breakpoint_from_pc): New function. * config/pa/tm-hppa.h (hppa_breakpoint_from_pc): Declare. (BREAKPOINT_FROM_PC): Define. (BREAKPOINT): Delete macro. * target.h: Update comment. * s390-tdep.c (s390_gdbarch_init): Update comments. * remote.c: Update comments. * remote-mips.c: Update comments. * proc-api.c (write_with_trace): Do not check for a breakpoint. * mem-break.c: Update comment. * ia64-tdep.c (IA64_BREAKPOINT): Rename BREAKPOINT. (ia64_memory_insert_breakpoint): Update. * config/sparc/tm-sparc.h: Update comment. * config/pa/tm-hppa64.h: Update comment. * rs6000-tdep.c (BIG_BREAKPOINT, LITTLE_BREAKPOINT): Delete macro. (rs6000_breakpoint_from_pc): Update. * mips-tdep.c (BIG_BREAKPOINT, LITTLE_BREAKPOINT): Delete macro. (PMON_BIG_BREAKPOINT, PMON_LITTLE_BREAKPOINT): Delete macro. (IDT_LITTLE_BREAKPOINT, IDT_LITTLE_BREAKPOINT): Delete macro. (MIPS16_LITTLE_BREAKPOINT, MIPS16_BIG_BREAKPOINT): Delete macro. (mips_breakpoint_from_pc): Update. (mips_dump_tdep): Update.
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, char *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, (char *) 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, char *contents_cache)
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{
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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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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, char *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, char *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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