X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Famd64fbsd-nat.c;h=72dc39bb34b48e7ecf66ded4372b307d3dc081c3;hb=2117c711ae07700adb57ea5b5ca61e4c32d7e3d2;hp=e0f008c330356f92073af522cfb984744ee3f047;hpb=cb4610693dc34ce904d1c6f1fb7f49cc2149dbd1;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/amd64fbsd-nat.c b/gdb/amd64fbsd-nat.c
index e0f008c330..72dc39bb34 100644
--- a/gdb/amd64fbsd-nat.c
+++ b/gdb/amd64fbsd-nat.c
@@ -1,12 +1,12 @@
/* Native-dependent code for FreeBSD/amd64.
- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
@@ -15,13 +15,12 @@
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. */
+ along with this program. If not, see . */
#include "defs.h"
#include "inferior.h"
#include "regcache.h"
+#include "target.h"
#include "gdb_assert.h"
#include
@@ -31,8 +30,11 @@
#include
#include
+#include "fbsd-nat.h"
#include "amd64-tdep.h"
#include "amd64-nat.h"
+#include "amd64bsd-nat.h"
+#include "i386-nat.h"
/* Offset in `struct reg' where MEMBER is stored. */
@@ -91,17 +93,104 @@ static int amd64fbsd32_r_reg_offset[I386_NUM_GREGS] =
};
+/* Support for debugging kernel virtual memory images. */
+
+#include
+#include
+
+#include "bsd-kvm.h"
+
+static int
+amd64fbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+ /* The following is true for FreeBSD 5.2:
+
+ The pcb contains %rip, %rbx, %rsp, %rbp, %r12, %r13, %r14, %r15,
+ %ds, %es, %fs and %gs. This accounts for all callee-saved
+ registers specified by the psABI and then some. Here %esp
+ contains the stack pointer at the point just after the call to
+ cpu_switch(). From this information we reconstruct the register
+ state as it would like when we just returned from cpu_switch(). */
+
+ /* The stack pointer shouldn't be zero. */
+ if (pcb->pcb_rsp == 0)
+ return 0;
+
+ pcb->pcb_rsp += 8;
+ regcache_raw_supply (regcache, AMD64_RIP_REGNUM, &pcb->pcb_rip);
+ regcache_raw_supply (regcache, AMD64_RBX_REGNUM, &pcb->pcb_rbx);
+ regcache_raw_supply (regcache, AMD64_RSP_REGNUM, &pcb->pcb_rsp);
+ regcache_raw_supply (regcache, AMD64_RBP_REGNUM, &pcb->pcb_rbp);
+ regcache_raw_supply (regcache, 12, &pcb->pcb_r12);
+ regcache_raw_supply (regcache, 13, &pcb->pcb_r13);
+ regcache_raw_supply (regcache, 14, &pcb->pcb_r14);
+ regcache_raw_supply (regcache, 15, &pcb->pcb_r15);
+#if (__FreeBSD_version < 800075) && (__FreeBSD_kernel_version < 800075)
+ /* struct pcb provides the pcb_ds/pcb_es/pcb_fs/pcb_gs fields only
+ up until __FreeBSD_version 800074: The removal of these fields
+ occurred on 2009-04-01 while the __FreeBSD_version number was
+ bumped to 800075 on 2009-04-06. So 800075 is the closest version
+ number where we should not try to access these fields. */
+ regcache_raw_supply (regcache, AMD64_DS_REGNUM, &pcb->pcb_ds);
+ regcache_raw_supply (regcache, AMD64_ES_REGNUM, &pcb->pcb_es);
+ regcache_raw_supply (regcache, AMD64_FS_REGNUM, &pcb->pcb_fs);
+ regcache_raw_supply (regcache, AMD64_GS_REGNUM, &pcb->pcb_gs);
+#endif
+
+ return 1;
+}
+
+
+static void (*super_mourn_inferior) (struct target_ops *ops);
+
+static void
+amd64fbsd_mourn_inferior (struct target_ops *ops)
+{
+#ifdef HAVE_PT_GETDBREGS
+ i386_cleanup_dregs ();
+#endif
+ super_mourn_inferior (ops);
+}
+
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_amd64fbsd_nat (void);
void
_initialize_amd64fbsd_nat (void)
{
+ struct target_ops *t;
int offset;
amd64_native_gregset32_reg_offset = amd64fbsd32_r_reg_offset;
amd64_native_gregset64_reg_offset = amd64fbsd64_r_reg_offset;
+ /* Add some extra features to the common *BSD/i386 target. */
+ t = amd64bsd_target ();
+
+#ifdef HAVE_PT_GETDBREGS
+
+ i386_use_watchpoints (t);
+
+ i386_dr_low.set_control = amd64bsd_dr_set_control;
+ i386_dr_low.set_addr = amd64bsd_dr_set_addr;
+ i386_dr_low.get_addr = amd64bsd_dr_get_addr;
+ i386_dr_low.get_status = amd64bsd_dr_get_status;
+ i386_dr_low.get_control = amd64bsd_dr_get_control;
+ i386_set_debug_register_length (8);
+
+#endif /* HAVE_PT_GETDBREGS */
+
+ super_mourn_inferior = t->to_mourn_inferior;
+ t->to_mourn_inferior = amd64fbsd_mourn_inferior;
+
+ t->to_pid_to_exec_file = fbsd_pid_to_exec_file;
+ t->to_find_memory_regions = fbsd_find_memory_regions;
+ t->to_make_corefile_notes = fbsd_make_corefile_notes;
+ add_target (t);
+
+ /* Support debugging kernel virtual memory images. */
+ bsd_kvm_add_target (amd64fbsd_supply_pcb);
+
/* To support the recognition of signal handlers, i386bsd-tdep.c
hardcodes some constants. Inclusion of this file means that we
are compiling a native debugger, which means that we can use the
@@ -124,9 +213,9 @@ _initialize_amd64fbsd_nat (void)
if (SC_RIP_OFFSET != offset)
{
- warning ("\
+ warning (_("\
offsetof (struct sigcontext, sc_rip) yields %d instead of %d.\n\
-Please report this to .",
+Please report this to ."),
offset, SC_RIP_OFFSET);
}
@@ -137,9 +226,9 @@ Please report this to .",
if (SC_RSP_OFFSET != offset)
{
- warning ("\
+ warning (_("\
offsetof (struct sigcontext, sc_rsp) yields %d instead of %d.\n\
-Please report this to .",
+Please report this to ."),
offset, SC_RSP_OFFSET);
}
@@ -150,9 +239,9 @@ Please report this to .",
if (SC_RBP_OFFSET != offset)
{
- warning ("\
+ warning (_("\
offsetof (struct sigcontext, sc_rbp) yields %d instead of %d.\n\
-Please report this to .",
+Please report this to ."),
offset, SC_RBP_OFFSET);
}