d5d653533c
OLD_CANNOT_FETCH_REGISTER): New definitions for accessible registers when accessing the registers via the U area. (fetch_register, store_register): Use them. (cannot_fetch_register, cannot_store_register): New functions, all registers should be accessible if we have GETREGS support. * config/i386/nm-linux.h: Use cannot_fetch/store_register for CANNOT_FETCH/STORE_REGISTER definitions.
100 lines
3.5 KiB
C
100 lines
3.5 KiB
C
/* Native support for Linux/x86.
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Copyright 1986, 1987, 1989, 1992, 1996, 1998, 2000
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Free Software Foundation, Inc.
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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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#ifndef NM_LINUX_H
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#define NM_LINUX_H
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#include "i386/nm-i386v.h"
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#include "nm-linux.h"
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/* Return sizeof user struct to callers in less machine dependent routines */
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#define KERNEL_U_SIZE kernel_u_size()
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extern int kernel_u_size (void);
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#define U_REGS_OFFSET 0
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/* GNU/Linux supports the 386 hardware debugging registers. */
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#define TARGET_HAS_HARDWARE_WATCHPOINTS
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#define TARGET_CAN_USE_HARDWARE_WATCHPOINT(type, cnt, ot) 1
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/* After a watchpoint trap, the PC points to the instruction after
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the one that caused the trap. Therefore we don't need to step over it.
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But we do need to reset the status register to avoid another trap. */
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#define HAVE_CONTINUABLE_WATCHPOINT
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#define STOPPED_BY_WATCHPOINT(W) \
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i386_stopped_by_watchpoint (inferior_pid)
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/* Use these macros for watchpoint insertion/removal. */
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#define target_insert_watchpoint(addr, len, type) \
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i386_insert_watchpoint (inferior_pid, addr, len, type)
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#define target_remove_watchpoint(addr, len, type) \
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i386_remove_watchpoint (inferior_pid, addr, len)
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/* We define this if link.h is available, because with ELF we use SVR4 style
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shared libraries. */
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#ifdef HAVE_LINK_H
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#define SVR4_SHARED_LIBS
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#include "solib.h" /* Support for shared libraries. */
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#endif
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/* Override copies of {fetch,store}_inferior_registers in `infptrace.c'. */
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#define FETCH_INFERIOR_REGISTERS
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/* Nevertheless, define CANNOT_{FETCH,STORE}_REGISTER, because we might fall
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back on the code `infptrace.c' (well a copy of that code in
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`i386-linux-nat.c' for now) and we can access only the
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general-purpose registers in that way. */
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extern int cannot_fetch_register (int regno);
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extern int cannot_store_register (int regno);
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#define CANNOT_FETCH_REGISTER(regno) cannot_store_register (regno)
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#define CANNOT_STORE_REGISTER(regno) cannot_fetch_register (regno)
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/* Override child_resume in `infptrace.c'. */
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#define CHILD_RESUME
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extern CORE_ADDR i386_stopped_by_watchpoint (int);
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extern int i386_insert_watchpoint (int pid, CORE_ADDR addr, int len, int rw);
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extern int i386_remove_watchpoint (int pid, CORE_ADDR addr, int len);
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/* FIXME: kettenis/2000-09-03: This should be moved to ../nm-linux.h
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once we have converted all Linux targets to use the new threads
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stuff (without the #undef of course). */
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extern int lin_lwp_prepare_to_proceed (void);
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#undef PREPARE_TO_PROCEED
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#define PREPARE_TO_PROCEED(select_it) lin_lwp_prepare_to_proceed ()
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extern void lin_lwp_attach_lwp (int pid, int verbose);
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#define ATTACH_LWP(pid, verbose) lin_lwp_attach_lwp ((pid), (verbose))
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#include <signal.h>
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extern void lin_thread_get_thread_signals (sigset_t *mask);
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#define GET_THREAD_SIGNALS(mask) lin_thread_get_thread_signals (mask)
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#endif /* nm_linux.h */
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