/* Process record and replay target for GDB, the GNU debugger.
- Copyright (C) 2013 Free Software Foundation, Inc.
+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "inf-loop.h"
#include "gdb_bfd.h"
#include "observer.h"
+#include "infrun.h"
#include <signal.h>
static struct target_ops record_full_ops;
static struct target_ops record_full_core_ops;
+/* See record-full.h. */
+
+int
+record_full_is_used (void)
+{
+ struct target_ops *t;
+
+ t = find_record_target ();
+ return (t == &record_full_ops
+ || t == &record_full_core_ops);
+}
+
+
/* Command lists for "set/show record full". */
static struct cmd_list_element *set_record_full_cmdlist;
static struct cmd_list_element *show_record_full_cmdlist;
/* Command list for "record full". */
static struct cmd_list_element *record_full_cmdlist;
-/* The beneath function pointers. */
-static struct target_ops *record_full_beneath_to_resume_ops;
-static void (*record_full_beneath_to_resume) (struct target_ops *, ptid_t, int,
- enum gdb_signal);
-static struct target_ops *record_full_beneath_to_wait_ops;
-static ptid_t (*record_full_beneath_to_wait) (struct target_ops *, ptid_t,
- struct target_waitstatus *,
- int);
-static struct target_ops *record_full_beneath_to_store_registers_ops;
-static void (*record_full_beneath_to_store_registers) (struct target_ops *,
- struct regcache *,
- int regno);
-static struct target_ops *record_full_beneath_to_xfer_partial_ops;
-static LONGEST
- (*record_full_beneath_to_xfer_partial) (struct target_ops *ops,
- enum target_object object,
- const char *annex,
- gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset,
- LONGEST len);
-static int
- (*record_full_beneath_to_insert_breakpoint) (struct gdbarch *,
- struct bp_target_info *);
-static int
- (*record_full_beneath_to_remove_breakpoint) (struct gdbarch *,
- struct bp_target_info *);
-static int (*record_full_beneath_to_stopped_by_watchpoint) (void);
-static int (*record_full_beneath_to_stopped_data_address) (struct target_ops *,
- CORE_ADDR *);
-static void
- (*record_full_beneath_to_async) (void (*) (enum inferior_event_type, void *),
- void *);
-
static void record_full_goto_insn (struct record_full_entry *entry,
enum exec_direction_kind dir);
-static void record_full_save (const char *recfilename);
+static void record_full_save (struct target_ops *self,
+ const char *recfilename);
/* Alloc and free functions for record_full_reg, record_full_mem, and
record_full_end entries. */
}
}
-static struct target_ops *tmp_to_resume_ops;
-static void (*tmp_to_resume) (struct target_ops *, ptid_t, int,
- enum gdb_signal);
-static struct target_ops *tmp_to_wait_ops;
-static ptid_t (*tmp_to_wait) (struct target_ops *, ptid_t,
- struct target_waitstatus *,
- int);
-static struct target_ops *tmp_to_store_registers_ops;
-static void (*tmp_to_store_registers) (struct target_ops *,
- struct regcache *,
- int regno);
-static struct target_ops *tmp_to_xfer_partial_ops;
-static LONGEST (*tmp_to_xfer_partial) (struct target_ops *ops,
- enum target_object object,
- const char *annex,
- gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset,
- LONGEST len);
-static int (*tmp_to_insert_breakpoint) (struct gdbarch *,
- struct bp_target_info *);
-static int (*tmp_to_remove_breakpoint) (struct gdbarch *,
- struct bp_target_info *);
-static int (*tmp_to_stopped_by_watchpoint) (void);
-static int (*tmp_to_stopped_data_address) (struct target_ops *, CORE_ADDR *);
-static int (*tmp_to_stopped_data_address) (struct target_ops *, CORE_ADDR *);
-static void (*tmp_to_async) (void (*) (enum inferior_event_type, void *), void *);
-
static void record_full_restore (void);
/* Asynchronous signal handle registered as event loop source for when
error (_("Process record: the current architecture doesn't support "
"record function."));
- if (!tmp_to_resume)
- error (_("Could not find 'to_resume' method on the target stack."));
- if (!tmp_to_wait)
- error (_("Could not find 'to_wait' method on the target stack."));
- if (!tmp_to_store_registers)
- error (_("Could not find 'to_store_registers' "
- "method on the target stack."));
- if (!tmp_to_insert_breakpoint)
- error (_("Could not find 'to_insert_breakpoint' "
- "method on the target stack."));
- if (!tmp_to_remove_breakpoint)
- error (_("Could not find 'to_remove_breakpoint' "
- "method on the target stack."));
- if (!tmp_to_stopped_by_watchpoint)
- error (_("Could not find 'to_stopped_by_watchpoint' "
- "method on the target stack."));
- if (!tmp_to_stopped_data_address)
- error (_("Could not find 'to_stopped_data_address' "
- "method on the target stack."));
-
push_target (&record_full_ops);
}
if (record_debug)
fprintf_unfiltered (gdb_stdlog, "Process record: record_full_open\n");
- /* Check if record target is already running. */
- if (current_target.to_stratum == record_stratum)
- error (_("Process record target already running. Use \"record stop\" to "
- "stop record target first."));
-
- /* Reset the tmp beneath pointers. */
- tmp_to_resume_ops = NULL;
- tmp_to_resume = NULL;
- tmp_to_wait_ops = NULL;
- tmp_to_wait = NULL;
- tmp_to_store_registers_ops = NULL;
- tmp_to_store_registers = NULL;
- tmp_to_xfer_partial_ops = NULL;
- tmp_to_xfer_partial = NULL;
- tmp_to_insert_breakpoint = NULL;
- tmp_to_remove_breakpoint = NULL;
- tmp_to_stopped_by_watchpoint = NULL;
- tmp_to_stopped_data_address = NULL;
- tmp_to_async = NULL;
-
- /* Set the beneath function pointers. */
- for (t = current_target.beneath; t != NULL; t = t->beneath)
- {
- if (!tmp_to_resume)
- {
- tmp_to_resume = t->to_resume;
- tmp_to_resume_ops = t;
- }
- if (!tmp_to_wait)
- {
- tmp_to_wait = t->to_wait;
- tmp_to_wait_ops = t;
- }
- if (!tmp_to_store_registers)
- {
- tmp_to_store_registers = t->to_store_registers;
- tmp_to_store_registers_ops = t;
- }
- if (!tmp_to_xfer_partial)
- {
- tmp_to_xfer_partial = t->to_xfer_partial;
- tmp_to_xfer_partial_ops = t;
- }
- if (!tmp_to_insert_breakpoint)
- tmp_to_insert_breakpoint = t->to_insert_breakpoint;
- if (!tmp_to_remove_breakpoint)
- tmp_to_remove_breakpoint = t->to_remove_breakpoint;
- if (!tmp_to_stopped_by_watchpoint)
- tmp_to_stopped_by_watchpoint = t->to_stopped_by_watchpoint;
- if (!tmp_to_stopped_data_address)
- tmp_to_stopped_data_address = t->to_stopped_data_address;
- if (!tmp_to_async)
- tmp_to_async = t->to_async;
- }
- if (!tmp_to_xfer_partial)
- error (_("Could not find 'to_xfer_partial' method on the target stack."));
+ record_preopen ();
/* Reset */
record_full_insn_num = 0;
record_full_list = &record_full_first;
record_full_list->next = NULL;
- /* Set the tmp beneath pointers to beneath pointers. */
- record_full_beneath_to_resume_ops = tmp_to_resume_ops;
- record_full_beneath_to_resume = tmp_to_resume;
- record_full_beneath_to_wait_ops = tmp_to_wait_ops;
- record_full_beneath_to_wait = tmp_to_wait;
- record_full_beneath_to_store_registers_ops = tmp_to_store_registers_ops;
- record_full_beneath_to_store_registers = tmp_to_store_registers;
- record_full_beneath_to_xfer_partial_ops = tmp_to_xfer_partial_ops;
- record_full_beneath_to_xfer_partial = tmp_to_xfer_partial;
- record_full_beneath_to_insert_breakpoint = tmp_to_insert_breakpoint;
- record_full_beneath_to_remove_breakpoint = tmp_to_remove_breakpoint;
- record_full_beneath_to_stopped_by_watchpoint = tmp_to_stopped_by_watchpoint;
- record_full_beneath_to_stopped_data_address = tmp_to_stopped_data_address;
- record_full_beneath_to_async = tmp_to_async;
-
if (core_bfd)
record_full_core_open_1 (name, from_tty);
else
/* "to_close" target method. Close the process record target. */
static void
-record_full_close (void)
+record_full_close (struct target_ops *self)
{
struct record_full_core_buf_entry *entry;
/* Make sure the target beneath reports all signals. */
target_pass_signals (0, NULL);
- record_full_beneath_to_resume (record_full_beneath_to_resume_ops,
- ptid, step, signal);
+ ops->beneath->to_resume (ops->beneath, ptid, step, signal);
}
/* We are about to start executing the inferior (or simulate it),
if (record_full_resume_step)
{
/* This is a single step. */
- return record_full_beneath_to_wait (record_full_beneath_to_wait_ops,
- ptid, status, options);
+ return ops->beneath->to_wait (ops->beneath, ptid, status, options);
}
else
{
while (1)
{
- ret = record_full_beneath_to_wait
- (record_full_beneath_to_wait_ops, ptid, status, options);
+ ret = ops->beneath->to_wait (ops->beneath, ptid, status, options);
if (status->kind == TARGET_WAITKIND_IGNORE)
{
if (record_debug)
struct gdbarch *gdbarch
= get_regcache_arch (regcache);
CORE_ADDR decr_pc_after_break
- = gdbarch_decr_pc_after_break (gdbarch);
+ = target_decr_pc_after_break (gdbarch);
if (decr_pc_after_break)
regcache_write_pc (regcache,
tmp_pc + decr_pc_after_break);
"Process record: record_full_wait "
"issuing one more step in the "
"target beneath\n");
- record_full_beneath_to_resume
- (record_full_beneath_to_resume_ops, ptid, step,
- GDB_SIGNAL_0);
+ ops->beneath->to_resume (ops->beneath, ptid, step,
+ GDB_SIGNAL_0);
continue;
}
}
tmp_pc = regcache_read_pc (regcache);
if (breakpoint_inserted_here_p (aspace, tmp_pc))
{
- int decr_pc_after_break = gdbarch_decr_pc_after_break (gdbarch);
+ int decr_pc_after_break = target_decr_pc_after_break (gdbarch);
if (record_debug)
fprintf_unfiltered (gdb_stdlog,
if (breakpoint_inserted_here_p (aspace, tmp_pc))
{
int decr_pc_after_break
- = gdbarch_decr_pc_after_break (gdbarch);
+ = target_decr_pc_after_break (gdbarch);
if (record_debug)
fprintf_unfiltered (gdb_stdlog,
}
static int
-record_full_stopped_by_watchpoint (void)
+record_full_stopped_by_watchpoint (struct target_ops *ops)
{
if (RECORD_FULL_IS_REPLAY)
return record_full_hw_watchpoint;
else
- return record_full_beneath_to_stopped_by_watchpoint ();
+ return ops->beneath->to_stopped_by_watchpoint (ops->beneath);
}
static int
if (RECORD_FULL_IS_REPLAY)
return 0;
else
- return record_full_beneath_to_stopped_data_address (ops, addr_p);
+ return ops->beneath->to_stopped_data_address (ops->beneath, addr_p);
}
/* Record registers change (by user or by GDB) to list as an instruction. */
record_full_registers_change (regcache, regno);
}
- record_full_beneath_to_store_registers
- (record_full_beneath_to_store_registers_ops, regcache, regno);
+ ops->beneath->to_store_registers (ops->beneath, regcache, regno);
}
/* "to_xfer_partial" method. Behavior is conditional on
In replay mode, we cannot write memory unles we are willing to
invalidate the record/replay log from this point forward. */
-static LONGEST
+static enum target_xfer_status
record_full_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset,
- LONGEST len)
+ ULONGEST len, ULONGEST *xfered_len)
{
if (!record_full_gdb_operation_disable
&& (object == TARGET_OBJECT_MEMORY
fprintf_unfiltered (gdb_stdlog,
"Process record: failed to record "
"execution log.");
- return -1;
+ return TARGET_XFER_E_IO;
}
if (record_full_arch_list_add_end ())
{
fprintf_unfiltered (gdb_stdlog,
"Process record: failed to record "
"execution log.");
- return -1;
+ return TARGET_XFER_E_IO;
}
record_full_list->next = record_full_arch_list_head;
record_full_arch_list_head->prev = record_full_list;
record_full_insn_num++;
}
- return record_full_beneath_to_xfer_partial
- (record_full_beneath_to_xfer_partial_ops, object, annex,
- readbuf, writebuf, offset, len);
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset,
+ len, xfered_len);
}
/* This structure represents a breakpoint inserted while the record
when recording. */
static int
-record_full_insert_breakpoint (struct gdbarch *gdbarch,
+record_full_insert_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
struct record_full_breakpoint *bp;
int ret;
old_cleanups = record_full_gdb_operation_disable_set ();
- ret = record_full_beneath_to_insert_breakpoint (gdbarch, bp_tgt);
+ ret = ops->beneath->to_insert_breakpoint (ops->beneath, gdbarch, bp_tgt);
do_cleanups (old_cleanups);
if (ret != 0)
/* "to_remove_breakpoint" method for process record target. */
static int
-record_full_remove_breakpoint (struct gdbarch *gdbarch,
+record_full_remove_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
struct record_full_breakpoint *bp;
int ret;
old_cleanups = record_full_gdb_operation_disable_set ();
- ret = record_full_beneath_to_remove_breakpoint (gdbarch, bp_tgt);
+ ret = ops->beneath->to_remove_breakpoint (ops->beneath, gdbarch,
+ bp_tgt);
do_cleanups (old_cleanups);
if (ret != 0)
/* "to_can_execute_reverse" method for process record target. */
static int
-record_full_can_execute_reverse (void)
+record_full_can_execute_reverse (struct target_ops *self)
{
return 1;
}
/* "to_get_bookmark" method for process record and prec over core. */
static gdb_byte *
-record_full_get_bookmark (char *args, int from_tty)
+record_full_get_bookmark (struct target_ops *self, char *args, int from_tty)
{
char *ret = NULL;
/* "to_goto_bookmark" method for process record and prec over core. */
static void
-record_full_goto_bookmark (gdb_byte *raw_bookmark, int from_tty)
+record_full_goto_bookmark (struct target_ops *self,
+ gdb_byte *raw_bookmark, int from_tty)
{
char *bookmark = (char *) raw_bookmark;
return;
}
-static void
-record_full_async (void (*callback) (enum inferior_event_type event_type,
- void *context), void *context)
-{
- /* If we're on top of a line target (e.g., linux-nat, remote), then
- set it to async mode as well. Will be NULL if we're sitting on
- top of the core target, for "record restore". */
- if (record_full_beneath_to_async != NULL)
- record_full_beneath_to_async (callback, context);
-}
-
-static int
-record_full_can_async_p (void)
-{
- /* We only enable async when the user specifically asks for it. */
- return target_async_permitted;
-}
-
-static int
-record_full_is_async_p (void)
-{
- /* We only enable async when the user specifically asks for it. */
- return target_async_permitted;
-}
-
static enum exec_direction_kind
-record_full_execution_direction (void)
+record_full_execution_direction (struct target_ops *self)
{
return record_full_execution_dir;
}
static void
-record_full_info (void)
+record_full_info (struct target_ops *self)
{
struct record_full_entry *p;
/* The "to_record_delete" target method. */
static void
-record_full_delete (void)
+record_full_delete (struct target_ops *self)
{
record_full_list_release_following (record_full_list);
}
/* The "to_record_is_replaying" target method. */
static int
-record_full_is_replaying (void)
+record_full_is_replaying (struct target_ops *self)
{
return RECORD_FULL_IS_REPLAY;
}
registers_changed ();
reinit_frame_cache ();
- print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
+ print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
}
/* The "to_goto_record_begin" target method. */
static void
-record_full_goto_begin (void)
+record_full_goto_begin (struct target_ops *self)
{
struct record_full_entry *p = NULL;
/* The "to_goto_record_end" target method. */
static void
-record_full_goto_end (void)
+record_full_goto_end (struct target_ops *self)
{
struct record_full_entry *p = NULL;
/* The "to_goto_record" target method. */
static void
-record_full_goto (ULONGEST target_insn)
+record_full_goto (struct target_ops *self, ULONGEST target_insn)
{
struct record_full_entry *p = NULL;
record_full_ops.to_detach = record_detach;
record_full_ops.to_mourn_inferior = record_mourn_inferior;
record_full_ops.to_kill = record_kill;
- record_full_ops.to_create_inferior = find_default_create_inferior;
record_full_ops.to_store_registers = record_full_store_registers;
record_full_ops.to_xfer_partial = record_full_xfer_partial;
record_full_ops.to_insert_breakpoint = record_full_insert_breakpoint;
/* Add bookmark target methods. */
record_full_ops.to_get_bookmark = record_full_get_bookmark;
record_full_ops.to_goto_bookmark = record_full_goto_bookmark;
- record_full_ops.to_async = record_full_async;
- record_full_ops.to_can_async_p = record_full_can_async_p;
- record_full_ops.to_is_async_p = record_full_is_async_p;
record_full_ops.to_execution_direction = record_full_execution_direction;
record_full_ops.to_info_record = record_full_info;
record_full_ops.to_save_record = record_full_save;
/* "to_prepare_to_store" method for prec over corefile. */
static void
-record_full_core_prepare_to_store (struct regcache *regcache)
+record_full_core_prepare_to_store (struct target_ops *self,
+ struct regcache *regcache)
{
}
/* "to_xfer_partial" method for prec over corefile. */
-static LONGEST
+static enum target_xfer_status
record_full_core_xfer_partial (struct target_ops *ops,
enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset,
- LONGEST len)
+ ULONGEST len, ULONGEST *xfered_len)
{
if (object == TARGET_OBJECT_MEMORY)
{
{
if (readbuf)
memset (readbuf, 0, len);
- return len;
+
+ *xfered_len = len;
+ return TARGET_XFER_OK;
}
/* Get record_full_core_buf_entry. */
for (entry = record_full_core_buf_list; entry;
&entry->buf))
{
xfree (entry);
- return 0;
+ return TARGET_XFER_EOF;
}
entry->prev = record_full_core_buf_list;
record_full_core_buf_list = entry;
else
{
if (!entry)
- return record_full_beneath_to_xfer_partial
- (record_full_beneath_to_xfer_partial_ops,
- object, annex, readbuf, writebuf,
- offset, len);
+ return ops->beneath->to_xfer_partial (ops->beneath,
+ object, annex,
+ readbuf, writebuf,
+ offset, len,
+ xfered_len);
memcpy (readbuf, entry->buf + sec_offset,
(size_t) len);
}
- return len;
+ *xfered_len = len;
+ return TARGET_XFER_OK;
}
}
- return -1;
+ return TARGET_XFER_E_IO;
}
else
error (_("You can't do that without a process to debug."));
}
- return record_full_beneath_to_xfer_partial
- (record_full_beneath_to_xfer_partial_ops, object, annex,
- readbuf, writebuf, offset, len);
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset, len,
+ xfered_len);
}
/* "to_insert_breakpoint" method for prec over corefile. */
static int
-record_full_core_insert_breakpoint (struct gdbarch *gdbarch,
+record_full_core_insert_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return 0;
/* "to_remove_breakpoint" method for prec over corefile. */
static int
-record_full_core_remove_breakpoint (struct gdbarch *gdbarch,
+record_full_core_remove_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return 0;
/* Add bookmark target methods. */
record_full_core_ops.to_get_bookmark = record_full_get_bookmark;
record_full_core_ops.to_goto_bookmark = record_full_goto_bookmark;
- record_full_core_ops.to_async = record_full_async;
- record_full_core_ops.to_can_async_p = record_full_can_async_p;
- record_full_core_ops.to_is_async_p = record_full_is_async_p;
record_full_core_ops.to_execution_direction
= record_full_execution_direction;
record_full_core_ops.to_info_record = record_full_info;
printf_filtered (_("Restored records from core file %s.\n"),
bfd_get_filename (core_bfd));
- print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
+ print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
}
/* bfdcore_write -- write bytes into a core file section. */
format, with an extra section for our data. */
static void
-record_full_save (const char *recfilename)
+record_full_save (struct target_ops *self, const char *recfilename)
{
struct record_full_entry *cur_record_full_list;
uint32_t magic;
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