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2012-02-09 Valery Khromov <valery.khromov@gmail.com>
PR gdb/12953 * Makefile.in (HFILES_NO_SRCDIR): Add amd64bsd-nat.h. * amd64bsd-nat.c: Add support for debug registers (adapted from i386bsd-nat.c). [HAVE_PT_GETDBREGS] (amd64bsd_dr_get, amd64bsd_dr_set) (amd64bsd_dr_set_control, amd64bsd_dr_set_addr) (amd64bsd_dr_get_addr, amd64bsd_dr_get_status) (amd64bsd_dr_get_control): New functions. * amd64bsd-nat.h: New file (adapted from i386bsd-nat.h). * amd64fbsd-nat.c: Include "amd64bsd-nat.h", "i386-nat.h". [HAVE_PT_GETDBREGS] (_initialize_amd64fbsd_nat): Add hardware watchpoints initialization. * config/i386/fbsd64.mh (NATDEPFILES): Add i386-nat.o.
This commit is contained in:
Pedro Alves
parent
f4859d94a0
commit
1916efaf84
@ -1,3 +1,19 @@
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2012-02-09 Valery Khromov <valery.khromov@gmail.com>
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PR gdb/12953
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* Makefile.in (HFILES_NO_SRCDIR): Add amd64bsd-nat.h.
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* amd64bsd-nat.c: Add support for debug registers (adapted from
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i386bsd-nat.c).
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[HAVE_PT_GETDBREGS] (amd64bsd_dr_get, amd64bsd_dr_set)
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(amd64bsd_dr_set_control, amd64bsd_dr_set_addr)
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(amd64bsd_dr_get_addr, amd64bsd_dr_get_status)
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(amd64bsd_dr_get_control): New functions.
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* amd64bsd-nat.h: New file (adapted from i386bsd-nat.h).
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* amd64fbsd-nat.c: Include "amd64bsd-nat.h", "i386-nat.h".
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[HAVE_PT_GETDBREGS] (_initialize_amd64fbsd_nat): Add hardware
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watchpoints initialization.
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* config/i386/fbsd64.mh (NATDEPFILES): Add i386-nat.o.
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2012-02-09 Jan Kratochvil <jan.kratochvil@redhat.com>
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* gdb-gdb.py (StructMainTypePrettyPrinter) <struct_field_img>: Print
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@ -761,7 +761,7 @@ common/gdb_signals.h common/gdb_thread_db.h common/i386-xstate.h \
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common/linux-ptrace.h \
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proc-utils.h arm-tdep.h ax-gdb.h ppcnbsd-tdep.h \
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cli-out.h gdb_expat.h breakpoint.h infcall.h obsd-tdep.h \
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exec.h m32r-tdep.h osabi.h gdbcore.h solib-som.h \
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exec.h m32r-tdep.h osabi.h gdbcore.h solib-som.h amd64bsd-nat.h \
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i386bsd-nat.h xml-support.h xml-tdesc.h alphabsd-tdep.h gdb_obstack.h \
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ia64-tdep.h ada-lang.h varobj.h frv-tdep.h nto-tdep.h serial.h \
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c-lang.h d-lang.h frame.h event-loop.h block.h cli/cli-setshow.h \
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@ -125,3 +125,75 @@ amd64bsd_target (void)
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t->to_store_registers = amd64bsd_store_inferior_registers;
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return t;
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}
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/* Support for debug registers. */
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#ifdef HAVE_PT_GETDBREGS
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static unsigned long
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amd64bsd_dr_get (ptid_t ptid, int regnum)
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{
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struct dbreg dbregs;
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if (ptrace (PT_GETDBREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
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perror_with_name (_("Couldn't read debug registers"));
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return DBREG_DRX ((&dbregs), regnum);
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}
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static void
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amd64bsd_dr_set (int regnum, unsigned long value)
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{
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struct dbreg dbregs;
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if (ptrace (PT_GETDBREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
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perror_with_name (_("Couldn't get debug registers"));
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/* For some mysterious reason, some of the reserved bits in the
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debug control register get set. Mask these off, otherwise the
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ptrace call below will fail. */
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DBREG_DRX ((&dbregs), 7) &= ~(0xffffffff0000fc00);
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DBREG_DRX ((&dbregs), regnum) = value;
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if (ptrace (PT_SETDBREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &dbregs, 0) == -1)
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perror_with_name (_("Couldn't write debug registers"));
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}
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void
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amd64bsd_dr_set_control (unsigned long control)
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{
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amd64bsd_dr_set (7, control);
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}
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void
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amd64bsd_dr_set_addr (int regnum, CORE_ADDR addr)
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{
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gdb_assert (regnum >= 0 && regnum <= 4);
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amd64bsd_dr_set (regnum, addr);
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}
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CORE_ADDR
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amd64bsd_dr_get_addr (int regnum)
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{
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return amd64bsd_dr_get (inferior_ptid, regnum);
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}
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unsigned long
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amd64bsd_dr_get_status (void)
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{
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return amd64bsd_dr_get (inferior_ptid, 6);
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}
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unsigned long
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amd64bsd_dr_get_control (void)
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{
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return amd64bsd_dr_get (inferior_ptid, 7);
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}
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#endif /* PT_GETDBREGS */
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35
gdb/amd64bsd-nat.h
Normal file
35
gdb/amd64bsd-nat.h
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@ -0,0 +1,35 @@
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/* Native-dependent code for AMD64 BSD's.
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Copyright (C) 2011-2012 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 3 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, see <http://www.gnu.org/licenses/>. */
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#ifndef AMD64BSD_NAT_H
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#define AMD64BSD_NAT_H
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/* Low level amd64 debug register functions. */
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extern void amd64bsd_dr_set_control (unsigned long control);
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extern void amd64bsd_dr_set_addr (int regnum, CORE_ADDR addr);
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extern CORE_ADDR amd64bsd_dr_get_addr (int regnum);
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extern unsigned long amd64bsd_dr_get_status (void);
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extern unsigned long amd64bsd_dr_get_control (void);
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#endif /* amd64bsd-nat.h */
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@ -33,6 +33,8 @@
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#include "fbsd-nat.h"
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#include "amd64-tdep.h"
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#include "amd64-nat.h"
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#include "amd64bsd-nat.h"
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#include "i386-nat.h"
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/* Offset in `struct reg' where MEMBER is stored. */
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@ -154,6 +156,20 @@ _initialize_amd64fbsd_nat (void)
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/* Add some extra features to the common *BSD/i386 target. */
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t = amd64bsd_target ();
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#ifdef HAVE_PT_GETDBREGS
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i386_use_watchpoints (t);
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i386_dr_low.set_control = amd64bsd_dr_set_control;
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i386_dr_low.set_addr = amd64bsd_dr_set_addr;
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i386_dr_low.get_addr = amd64bsd_dr_get_addr;
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i386_dr_low.get_status = amd64bsd_dr_get_status;
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i386_dr_low.get_control = amd64bsd_dr_get_control;
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i386_set_debug_register_length (8);
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#endif /* HAVE_PT_GETDBREGS */
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t->to_pid_to_exec_file = fbsd_pid_to_exec_file;
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t->to_find_memory_regions = fbsd_find_memory_regions;
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t->to_make_corefile_notes = fbsd_make_corefile_notes;
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@ -1,6 +1,6 @@
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# Host: FreeBSD/amd64
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NATDEPFILES= fork-child.o inf-ptrace.o \
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fbsd-nat.o amd64-nat.o amd64bsd-nat.o amd64fbsd-nat.o \
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bsd-kvm.o
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bsd-kvm.o i386-nat.o
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LOADLIBES= -lkvm
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