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authorPedro Alves <palves@redhat.com>2009-11-22 15:47:31 +0000
committerPedro Alves <palves@redhat.com>2009-11-22 15:47:31 +0000
commita9840291c6c59f9edbe9d07269696d6e6385a428 (patch)
treece2fc4d966a570d3f9de48c72b9ab6a31980bce9 /gdb
parent9093389c0fbe371727b8725a3036c113bed015f0 (diff)
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Make hardware breakpoints work for process repord.
* record.c (record_wait): Only adjust PC on software breakpoints hits.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog7
-rw-r--r--gdb/record.c54
2 files changed, 39 insertions, 22 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index bbf02db..bd4c470 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,4 +1,11 @@
2009-11-22 Pedro Alves <pedro@codesourcery.com>
+
+ Make hardware breakpoints work for process repord.
+
+ * record.c (record_wait): Only adjust PC on software breakpoints
+ hits.
+
+2009-11-22 Pedro Alves <pedro@codesourcery.com>
Michael Snyder <msnyder@vmware.com>
Make hardware watchpoints work for process record.
diff --git a/gdb/record.c b/gdb/record.c
index d2c6b77..00c7dea 100644
--- a/gdb/record.c
+++ b/gdb/record.c
@@ -1097,6 +1097,7 @@ record_wait (struct target_ops *ops,
&& status->value.sig == TARGET_SIGNAL_TRAP)
{
struct regcache *regcache;
+ struct address_space *aspace;
/* Yes -- this is likely our single-step finishing,
but check if there's any reason the core would be
@@ -1105,22 +1106,25 @@ record_wait (struct target_ops *ops,
registers_changed ();
regcache = get_current_regcache ();
tmp_pc = regcache_read_pc (regcache);
+ aspace = get_regcache_aspace (regcache);
if (target_stopped_by_watchpoint ())
{
/* Always interested in watchpoints. */
}
- else if (breakpoint_inserted_here_p (get_regcache_aspace (regcache),
- tmp_pc))
+ else if (breakpoint_inserted_here_p (aspace, tmp_pc))
{
/* There is a breakpoint here. Let the core
handle it. */
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
- CORE_ADDR decr_pc_after_break
- = gdbarch_decr_pc_after_break (gdbarch);
- if (decr_pc_after_break)
- regcache_write_pc (regcache,
- tmp_pc + decr_pc_after_break);
+ if (software_breakpoint_inserted_here_p (aspace, tmp_pc))
+ {
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ CORE_ADDR decr_pc_after_break
+ = gdbarch_decr_pc_after_break (gdbarch);
+ if (decr_pc_after_break)
+ regcache_write_pc (regcache,
+ tmp_pc + decr_pc_after_break);
+ }
}
else
{
@@ -1147,6 +1151,7 @@ record_wait (struct target_ops *ops,
{
struct regcache *regcache = get_current_regcache ();
struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct address_space *aspace = get_regcache_aspace (regcache);
int continue_flag = 1;
int first_record_end = 1;
struct cleanup *old_cleanups = make_cleanup (record_wait_cleanups, 0);
@@ -1159,18 +1164,20 @@ record_wait (struct target_ops *ops,
if (execution_direction == EXEC_FORWARD)
{
tmp_pc = regcache_read_pc (regcache);
- if (breakpoint_inserted_here_p (get_regcache_aspace (regcache),
- tmp_pc))
+ if (breakpoint_inserted_here_p (aspace, tmp_pc))
{
+ int decr_pc_after_break = gdbarch_decr_pc_after_break (gdbarch);
+
if (record_debug)
fprintf_unfiltered (gdb_stdlog,
"Process record: break at %s.\n",
paddress (gdbarch, tmp_pc));
- if (gdbarch_decr_pc_after_break (gdbarch)
- && !record_resume_step)
+
+ if (decr_pc_after_break
+ && !record_resume_step
+ && software_breakpoint_inserted_here_p (aspace, tmp_pc))
regcache_write_pc (regcache,
- tmp_pc +
- gdbarch_decr_pc_after_break (gdbarch));
+ tmp_pc + decr_pc_after_break);
goto replay_out;
}
}
@@ -1240,28 +1247,31 @@ record_wait (struct target_ops *ops,
/* check breakpoint */
tmp_pc = regcache_read_pc (regcache);
- if (breakpoint_inserted_here_p (get_regcache_aspace (regcache),
- tmp_pc))
+ if (breakpoint_inserted_here_p (aspace, tmp_pc))
{
+ int decr_pc_after_break
+ = gdbarch_decr_pc_after_break (gdbarch);
+
if (record_debug)
fprintf_unfiltered (gdb_stdlog,
"Process record: break "
"at %s.\n",
paddress (gdbarch, tmp_pc));
- if (gdbarch_decr_pc_after_break (gdbarch)
+ if (decr_pc_after_break
&& execution_direction == EXEC_FORWARD
- && !record_resume_step)
+ && !record_resume_step
+ && software_breakpoint_inserted_here_p (aspace,
+ tmp_pc))
regcache_write_pc (regcache,
- tmp_pc +
- gdbarch_decr_pc_after_break (gdbarch));
+ tmp_pc + decr_pc_after_break);
continue_flag = 0;
}
if (record_hw_watchpoint)
{
if (record_debug)
- fprintf_unfiltered (gdb_stdlog,
- "Process record: hit hw watchpoint.\n");
+ fprintf_unfiltered (gdb_stdlog, "\
+Process record: hit hw watchpoint.\n");
continue_flag = 0;
}
/* Check target signal */