/* Process record and replay target for GDB, the GNU debugger.
- Copyright (C) 2013-2019 Free Software Foundation, Inc.
+ Copyright (C) 2013-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdb_bfd.h"
#include "observable.h"
#include "infrun.h"
-#include "common/gdb_unlinker.h"
-#include "common/byte-vector.h"
+#include "gdbsupport/gdb_unlinker.h"
+#include "gdbsupport/byte-vector.h"
#include <signal.h>
mode, and we build up an execution log in which, for each executed
instruction, we record all changes in memory and register state.
This is invisible to the user, to whom it just looks like an
- ordinary debugging session (except for performance degredation).
+ ordinary debugging session (except for performance degradation).
In replay mode, instead of actually letting the inferior run as a
process, we simulate its execution by playing back the recorded
/* If true, query if PREC cannot record memory
change of next instruction. */
-int record_full_memory_query = 0;
+bool record_full_memory_query = false;
struct record_full_core_buf_entry
{
static struct record_full_entry *record_full_arch_list_head = NULL;
static struct record_full_entry *record_full_arch_list_tail = NULL;
-/* 1 ask user. 0 auto delete the last struct record_full_entry. */
-static int record_full_stop_at_limit = 1;
+/* true ask user. false auto delete the last struct record_full_entry. */
+static bool record_full_stop_at_limit = true;
/* Maximum allowed number of insns in execution log. */
static unsigned int record_full_insn_max_num
= DEFAULT_RECORD_FULL_INSN_MAX_NUM;
struct bp_target_info *,
enum remove_bp_reason) override;
- bool has_execution (ptid_t) override;
+ bool has_execution (inferior *inf) override;
};
static record_full_target record_full_ops;
int ret;
struct gdbarch *gdbarch = regcache->arch ();
- TRY
+ try
{
record_full_arch_list_head = NULL;
record_full_arch_list_tail = NULL;
if (ret < 0)
error (_("Process record: failed to record execution log."));
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
record_full_list_release (record_full_arch_list_tail);
- throw_exception (ex);
+ throw;
}
- END_CATCH
record_full_list->next = record_full_arch_list_head;
record_full_arch_list_head->prev = record_full_list;
record_full_message_wrapper_safe (struct regcache *regcache,
enum gdb_signal signal)
{
- TRY
+ try
{
record_full_message (regcache, signal);
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
exception_print (gdb_stderr, ex);
return false;
}
- END_CATCH
return true;
}
beneath ()->async (enable);
}
+/* The PTID and STEP arguments last passed to
+ record_full_target::resume. */
+static ptid_t record_full_resume_ptid = null_ptid;
static int record_full_resume_step = 0;
/* True if we've been resumed, and so each record_full_wait call should
void
record_full_target::resume (ptid_t ptid, int step, enum gdb_signal signal)
{
+ record_full_resume_ptid = inferior_ptid;
record_full_resume_step = step;
record_full_resumed = 1;
record_full_execution_dir = ::execution_direction;
}
/* Make sure the target beneath reports all signals. */
- target_pass_signals (0, NULL);
+ target_pass_signals ({});
this->beneath ()->resume (ptid, step, signal);
}
/* This is not a single step. */
ptid_t ret;
CORE_ADDR tmp_pc;
- struct gdbarch *gdbarch = target_thread_architecture (inferior_ptid);
+ struct gdbarch *gdbarch
+ = target_thread_architecture (record_full_resume_ptid);
while (1)
{
interested in the event. */
registers_changed ();
+ switch_to_thread (current_inferior ()->process_target (),
+ ret);
regcache = get_current_regcache ();
tmp_pc = regcache_read_pc (regcache);
const struct address_space *aspace = regcache->aspace ();
if (gdbarch_software_single_step_p (gdbarch))
{
+ process_stratum_target *proc_target
+ = current_inferior ()->process_target ();
+
/* Try to insert the software single step breakpoint.
If insert success, set step to 0. */
- set_executing (inferior_ptid, 0);
+ set_executing (proc_target, inferior_ptid, 0);
reinit_frame_cache ();
step = !insert_single_step_breakpoints (gdbarch);
- set_executing (inferior_ptid, 1);
+ set_executing (proc_target, inferior_ptid, 1);
}
if (record_debug)
}
else
{
+ switch_to_thread (current_inferior ()->process_target (),
+ record_full_resume_ptid);
struct regcache *regcache = get_current_regcache ();
struct gdbarch *gdbarch = regcache->arch ();
const struct address_space *aspace = regcache->aspace ();
int continue_flag = 1;
int first_record_full_end = 1;
- TRY
+ try
{
CORE_ADDR tmp_pc;
if (first_record_full_end
&& execution_direction == EXEC_REVERSE)
{
- /* When reverse excute, the first
+ /* When reverse execute, the first
record_full_end is the part of current
instruction. */
first_record_full_end = 0;
else
status->value.sig = GDB_SIGNAL_TRAP;
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
if (execution_direction == EXEC_REVERSE)
{
else
record_full_list = record_full_list->prev;
- throw_exception (ex);
+ throw;
}
- END_CATCH
}
signal (SIGINT, handle_sigint);
/* "has_execution" method for prec over corefile. */
bool
-record_full_core_target::has_execution (ptid_t the_ptid)
+record_full_core_target::has_execution (inferior *inf)
{
return true;
}
osec ? "succeeded" : "failed");
if (osec == NULL)
return;
- osec_size = bfd_section_size (core_bfd, osec);
+ osec_size = bfd_section_size (osec);
if (record_debug)
- fprintf_unfiltered (gdb_stdlog, "%s", bfd_section_name (core_bfd, osec));
+ fprintf_unfiltered (gdb_stdlog, "%s", bfd_section_name (osec));
/* Check the magic code. */
bfdcore_read (core_bfd, osec, &magic, sizeof (magic), &bfd_offset);
record_full_arch_list_tail = NULL;
record_full_insn_num = 0;
- TRY
+ try
{
regcache = get_current_regcache ();
record_full_arch_list_add (rec);
}
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
record_full_list_release (record_full_arch_list_tail);
- throw_exception (ex);
+ throw;
}
- END_CATCH
/* Add record_full_arch_list_head to the end of record list. */
record_full_first.next = record_full_arch_list_head;
error (_("Failed to create 'precord' section for corefile %s: %s"),
recfilename,
bfd_errmsg (bfd_get_error ()));
- bfd_set_section_size (obfd.get (), osec, save_size);
- bfd_set_section_vma (obfd.get (), osec, 0);
- bfd_set_section_alignment (obfd.get (), osec, 0);
- bfd_section_lma (obfd.get (), osec) = 0;
+ bfd_set_section_size (osec, save_size);
+ bfd_set_section_vma (osec, 0);
+ bfd_set_section_alignment (osec, 0);
/* Save corefile state. */
write_gcore_file (obfd.get ());
deprecate_cmd (c, "record full restore");
add_prefix_cmd ("full", class_support, set_record_full_command,
- _("Set record options"), &set_record_full_cmdlist,
+ _("Set record options."), &set_record_full_cmdlist,
"set record full ", 0, &set_record_cmdlist);
add_prefix_cmd ("full", class_support, show_record_full_command,
- _("Show record options"), &show_record_full_cmdlist,
+ _("Show record options."), &show_record_full_cmdlist,
"show record full ", 0, &show_record_cmdlist);
/* Record instructions number limit command. */
projects / deliverable / binutils-gdb.git / blobdiff