8181d85fdc
* breakpoint.c (deprecated_read_memory_nobpt): Update to use shadow_len. (insert_bp_location, reattach_breakpoints, remove_breakpoint) (delete_breakpoint): Update calls to changed methods. (deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint) (single_step_breakpoints, insert_single_step_breakpoint) (remove_single_step_breakpoints): New. * breakpoint.h (struct bp_target_info): New. (struct bp_location): Replace shadow_contents with target_info and overlay_target_info. (deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint) (insert_single_step_breakpoint, remove_single_step_breakpoints): New prototypes. * gdbarch.sh: Forward declare struct bp_target_info in gdbarch.h. (memory_insert_breakpoint, memory_remove_breakpoint): Update second argument. * mem-break.c (default_memory_insert_breakpoint): Update. Set placed_address, placed_size, and shadow_len. (default_memory_remove_breakpoint): Update. Don't use BREAKPOINT_FROM_PC. (memory_insert_breakpoint, memory_remove_breakpoint): Update. * target.c (update_current_target): Update prototypes for changed functions. (debug_to_insert_breakpoint, debug_to_remove_breakpoint) (debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Update. * target.h: Forward declare struct bp_target_info. (struct target_ops): Use a bp_target_info argument for to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint. (target_insert_breakpoint, target_remove_breakpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint) (memory_insert_breakpoint, memory_remove_breakpoint) (default_memory_insert_breakpoint, default_memory_remove_breakpoint): Update. * config/i386/nm-i386.h: Forward declare struct bp_target_info. (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update. (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Likewise. * gdbarch.c, gdbarch.h: Regenerated. * alpha-tdep.c (alpha_software_single_step): Use insert_single_step_breakpoint and remove_single_step_breakpoints. Remove unused statics. * arm-tdep.c (arm_software_single_step): Likewise. Add a note. * cris-tdep.c (cris_software_single_step): Likewise. * mips-tdep.c (mips_software_single_step): Likewise. * rs6000-tdep.c (rs6000_software_single_step): Likewise. * sparc-tdep.c (sparc_software_single_step): Likewise. * wince.c (struct thread_info_struct): Remove step_prev. (undoSStep): Use remove_single_step_breakpoints. (wince_software_single_step): Use insert_single_step_breakpoint. * corelow.c (ignore): Remove unneeded prototype. Update arguments. * exec.c (ignore): Likewise. * sol-thread.c (ignore): Likewise. * procfs.c (dbx_link_shadow_contents): Delete. (dbx_link_bpt): New. (procfs_mourn_inferior): Remove it if necessary. (remove_dbx_link_breakpoint): Use it. (insert_dbx_link_bpt_in_file): Set it. (procfs_init_inferior): Don't update dbx_link_bpt_addr. * rs6000-nat.c (exec_one_dummy_insn): Use deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint. * solib-irix.c (shadow_contents, breakpoint_addr): Delete. (base_breakpoint): New. (disable_break): Use it. (enable_break): Set it. * i386-nat.c (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update. * ia64-tdep.c (ia64_memory_insert_breakpoint) (ia64_memory_remove_breakpoint): Likewise. * m32r-tdep.c (m32r_memory_insert_breakpoint) (m32r_memory_remove_breakpoint): Likewise. * monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint): Likewise. Remove unnecessary prototypes. Use placed_address and placed_size. Removed useless read from memory. * nto-procfs.c (procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint): Update. * ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise. * ocd.h (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise. * ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise. * ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Likewise. * remote-e7000.c (e7000_insert_breakpoint) (e7000_remove_breakpoint): Likewise. * remote-m32r-sdi.c (m32r_insert_breakpoint) (m32r_remove_breakpoint): Likewise. * remote-mips.c (mips_insert_breakpoint) (mips_remove_breakpoint): Likewise. * remote-rdp.c (remote_rdp_insert_breakpoint) (remote_rdp_remove_breakpoint): Likewise. (rdp_step): Use deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint. * remote-sds.c (sds_insert_breakpoint, sds_remove_breakpoint): Update. * remote-sim.c (gdbsim_insert_breakpoint, gdbsim_remove_breakpoint): Delete. (init_gdbsim_ops): Use memory_insert_breakpoint and memory_remove_breakpoint. * remote-st.c (st2000_insert_breakpoint) (st2000_remove_breakpoint): Update. Remove unused BREAKPOINT_FROM_PC. * remote.c (remote_insert_breakpoint, remote_remove_breakpoint): Update. Use placed_address and placed_size. (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint): Likewise. gdb/doc/ * gdbint.texinfo (x86 Watchpoints, Target Conditionals): Update insert and remove breakpoint prototypes. (Watchpoints): Move description of target_insert_hw_breakpoint and target_remove_hw_breakpoint ... (Breakpoints): ... to here. Document target_insert_breakpoint and target_remove_breakpoint.
121 lines
4.9 KiB
C
121 lines
4.9 KiB
C
/* Native macro definitions for GDB on an Intel i[3456]86.
|
|
Copyright 2001, 2004 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 NM_I386_H
|
|
#define NM_I386_H 1
|
|
|
|
/* Hardware-assisted breakpoints and watchpoints. */
|
|
|
|
/* Targets should define this to use the generic x86 watchpoint support. */
|
|
#ifdef I386_USE_GENERIC_WATCHPOINTS
|
|
|
|
/* Clear the reference counts and forget everything we knew about DRi. */
|
|
extern void i386_cleanup_dregs (void);
|
|
|
|
/* Insert a watchpoint to watch a memory region which starts at
|
|
address ADDR and whose length is LEN bytes. Watch memory accesses
|
|
of the type TYPE. Return 0 on success, -1 on failure. */
|
|
extern int i386_insert_watchpoint (CORE_ADDR addr, int len, int type);
|
|
|
|
/* Remove a watchpoint that watched the memory region which starts at
|
|
address ADDR, whose length is LEN bytes, and for accesses of the
|
|
type TYPE. Return 0 on success, -1 on failure. */
|
|
extern int i386_remove_watchpoint (CORE_ADDR addr, int len, int type);
|
|
|
|
/* Return non-zero if we can watch a memory region that starts at
|
|
address ADDR and whose length is LEN bytes. */
|
|
extern int i386_region_ok_for_watchpoint (CORE_ADDR addr, int len);
|
|
|
|
/* Return non-zero if the inferior has some break/watchpoint that
|
|
triggered. */
|
|
extern int i386_stopped_by_hwbp (void);
|
|
|
|
/* If the inferior has some break/watchpoint that triggered, set
|
|
the address associated with that break/watchpoint and return
|
|
true. Otherwise, return false. */
|
|
extern int i386_stopped_data_address (CORE_ADDR *);
|
|
|
|
/* Insert a hardware-assisted breakpoint at BP_TGT->placed_address.
|
|
Return 0 on success, EBUSY on failure. */
|
|
struct bp_target_info;
|
|
extern int i386_insert_hw_breakpoint (struct bp_target_info *bp_tgt);
|
|
|
|
/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address.
|
|
Return 0 on success, -1 on failure. */
|
|
extern int i386_remove_hw_breakpoint (struct bp_target_info *bp_tgt);
|
|
|
|
/* Returns the number of hardware watchpoints of type TYPE that we can
|
|
set. Value is positive if we can set CNT watchpoints, zero if
|
|
setting watchpoints of type TYPE is not supported, and negative if
|
|
CNT is more than the maximum number of watchpoints of type TYPE
|
|
that we can support. TYPE is one of bp_hardware_watchpoint,
|
|
bp_read_watchpoint, bp_write_watchpoint, or bp_hardware_breakpoint.
|
|
CNT is the number of such watchpoints used so far (including this
|
|
one). OTHERTYPE is non-zero if other types of watchpoints are
|
|
currently enabled.
|
|
|
|
We always return 1 here because we don't have enough information
|
|
about possible overlap of addresses that they want to watch. As an
|
|
extreme example, consider the case where all the watchpoints watch
|
|
the same address and the same region length: then we can handle a
|
|
virtually unlimited number of watchpoints, due to debug register
|
|
sharing implemented via reference counts in i386-nat.c. */
|
|
|
|
#define TARGET_CAN_USE_HARDWARE_WATCHPOINT(type, cnt, ot) 1
|
|
|
|
/* Returns non-zero if we can use hardware watchpoints to watch a
|
|
region whose address is ADDR and whose length is LEN. */
|
|
|
|
#define TARGET_REGION_OK_FOR_HW_WATCHPOINT(addr, len) \
|
|
i386_region_ok_for_watchpoint (addr, len)
|
|
|
|
/* After a watchpoint trap, the PC points to the instruction after the
|
|
one that caused the trap. Therefore we don't need to step over it.
|
|
But we do need to reset the status register to avoid another trap. */
|
|
|
|
#define HAVE_CONTINUABLE_WATCHPOINT 1
|
|
|
|
extern int i386_stopped_by_watchpoint (void);
|
|
|
|
#define STOPPED_BY_WATCHPOINT(W) (i386_stopped_by_watchpoint () != 0)
|
|
|
|
#define target_stopped_data_address(target, x) i386_stopped_data_address(x)
|
|
|
|
/* Use these macros for watchpoint insertion/removal. */
|
|
|
|
#define target_insert_watchpoint(addr, len, type) \
|
|
i386_insert_watchpoint (addr, len, type)
|
|
|
|
#define target_remove_watchpoint(addr, len, type) \
|
|
i386_remove_watchpoint (addr, len, type)
|
|
|
|
#define target_insert_hw_breakpoint(bp_tgt) \
|
|
i386_insert_hw_breakpoint (bp_tgt)
|
|
|
|
#define target_remove_hw_breakpoint(bp_tgt) \
|
|
i386_remove_hw_breakpoint (bp_tgt)
|
|
|
|
/* child_post_startup_inferior used to
|
|
reset all debug registers by calling i386_cleanup_dregs (). */
|
|
#define CHILD_POST_STARTUP_INFERIOR
|
|
|
|
#endif /* I386_USE_GENERIC_WATCHPOINTS */
|
|
|
|
#endif /* NM_I386_H */
|