[PATCH v9 20/29] target, breakpoint: allow insert/remove breakpoint to be forwarded
Markus Metzger
markus.t.metzger@intel.com
Thu Dec 19 16:45:00 GMT 2013
2013-12-19 Markus Metzger <markus.t.metzger@intel.com>
* target.h (target_ops) <to_insert_breakpoint>
<to_remove_breakpoint>: Add target_ops parameter.
(forward_target_insert_breakpoint): New.
(forward_target_remove_breakpoint): New.
(memory_remove_breakpoint, memory_insert_breakpoint):
Add target_ops parameter.
* target.c (target_insert_breakpoint): Split into this and ...
(forward_target_insert_breakpoint): ... this.
(target_remove_breakpoint): Split into this and ...
(forward_target_remove_breakpoint): ... this.
(debug_to_insert_breakpoint): Add target_ops parameter.
Call forward_target_insert_breakpoint.
(debug_to_remove_breakpoint): Add target_ops parameter.
Call forward_target_remove_breakpoint.
(update_current_target): Do not inherit or default to_insert_breakpoint
and to_remove_breakpoint.
* corelow.c (ignore): Add target_ops parameter.
* exec.c (ignore): Add target_ops parameter.
* mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint):
Add target_ops parameter.
* monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint):
Add target_ops parameter.
* nto-procfs.c (procfs_insert_breakpoint, procfs_remove_breakpoint):
Add target_ops parameter.
* record-full.c (record_full_beneath_to_insert_breakpoint)
(record_full_beneath_to_remove_breakpoint, tmp_to_insert_breakpoint)
(tmp_to_remove_breakpoint, record_full_insert_breakpoint)
(record_full_remove_breakpoint, record_full_core_insert_breakpoint)
(record_full_core_remove_breakpoint): Add target_ops parameter.
* m32r-sdi.c (m32r_insert_breakpoint, m32r_remove_breakpoint):
Add target_ops parameter.
* remote-mips.c (mips_insert_breakpoint, mips_remove_breakpoint):
Add target_ops parameter.
* remote.c (remote_insert_breakpoint, remote_remove_breakpoint):
Add target_ops parameter.
---
gdb/corelow.c | 3 ++-
gdb/exec.c | 3 ++-
gdb/mem-break.c | 4 ++--
gdb/monitor.c | 4 ++--
gdb/nto-procfs.c | 4 ++--
gdb/record-full.c | 28 ++++++++++++++---------
gdb/remote-m32r-sdi.c | 6 +++--
gdb/remote-mips.c | 8 +++----
gdb/remote.c | 10 +++++----
gdb/target.c | 62 +++++++++++++++++++++++++++++++++++++--------------
gdb/target.h | 25 +++++++++++++++++----
11 files changed, 108 insertions(+), 49 deletions(-)
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 2869eea..50f89cf 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -842,7 +842,8 @@ core_xfer_partial (struct target_ops *ops, enum target_object object,
breakpoint_init_inferior). */
static int
-ignore (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
+ignore (struct target_ops *ops, struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
return 0;
}
diff --git a/gdb/exec.c b/gdb/exec.c
index 38d2edb..70409d9 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -801,7 +801,8 @@ exec_set_section_address (const char *filename, int index, CORE_ADDR address)
breakpoint_init_inferior). */
static int
-ignore (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
+ignore (struct target_ops *ops, struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
return 0;
}
diff --git a/gdb/mem-break.c b/gdb/mem-break.c
index f06c4ae..9e2a1a4 100644
--- a/gdb/mem-break.c
+++ b/gdb/mem-break.c
@@ -77,14 +77,14 @@ default_memory_remove_breakpoint (struct gdbarch *gdbarch,
int
-memory_insert_breakpoint (struct gdbarch *gdbarch,
+memory_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return gdbarch_memory_insert_breakpoint (gdbarch, bp_tgt);
}
int
-memory_remove_breakpoint (struct gdbarch *gdbarch,
+memory_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return gdbarch_memory_remove_breakpoint (gdbarch, bp_tgt);
diff --git a/gdb/monitor.c b/gdb/monitor.c
index 5d2c3f3..6074435 100644
--- a/gdb/monitor.c
+++ b/gdb/monitor.c
@@ -2095,7 +2095,7 @@ monitor_mourn_inferior (struct target_ops *ops)
/* Tell the monitor to add a breakpoint. */
static int
-monitor_insert_breakpoint (struct gdbarch *gdbarch,
+monitor_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
@@ -2132,7 +2132,7 @@ monitor_insert_breakpoint (struct gdbarch *gdbarch,
/* Tell the monitor to remove a breakpoint. */
static int
-monitor_remove_breakpoint (struct gdbarch *gdbarch,
+monitor_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
diff --git a/gdb/nto-procfs.c b/gdb/nto-procfs.c
index 1c2f298..6c9604d 100644
--- a/gdb/nto-procfs.c
+++ b/gdb/nto-procfs.c
@@ -922,14 +922,14 @@ procfs_breakpoint (CORE_ADDR addr, int type, int size)
}
static int
-procfs_insert_breakpoint (struct gdbarch *gdbarch,
+procfs_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0);
}
static int
-procfs_remove_breakpoint (struct gdbarch *gdbarch,
+procfs_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1);
diff --git a/gdb/record-full.c b/gdb/record-full.c
index 1710a51..b54314d 100644
--- a/gdb/record-full.c
+++ b/gdb/record-full.c
@@ -230,10 +230,12 @@ static void (*record_full_beneath_to_store_registers) (struct target_ops *,
static struct target_ops *record_full_beneath_to_xfer_partial_ops;
static target_xfer_partial_ftype *record_full_beneath_to_xfer_partial;
static int
- (*record_full_beneath_to_insert_breakpoint) (struct gdbarch *,
+ (*record_full_beneath_to_insert_breakpoint) (struct target_ops *,
+ struct gdbarch *,
struct bp_target_info *);
static int
- (*record_full_beneath_to_remove_breakpoint) (struct gdbarch *,
+ (*record_full_beneath_to_remove_breakpoint) (struct target_ops *,
+ 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 *,
@@ -801,9 +803,9 @@ static void (*tmp_to_store_registers) (struct target_ops *,
int regno);
static struct target_ops *tmp_to_xfer_partial_ops;
static target_xfer_partial_ftype *tmp_to_xfer_partial;
-static int (*tmp_to_insert_breakpoint) (struct gdbarch *,
+static int (*tmp_to_insert_breakpoint) (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
-static int (*tmp_to_remove_breakpoint) (struct gdbarch *,
+static int (*tmp_to_remove_breakpoint) (struct target_ops *, 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 *);
@@ -1745,7 +1747,8 @@ record_full_init_record_breakpoints (void)
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;
@@ -1762,7 +1765,8 @@ record_full_insert_breakpoint (struct gdbarch *gdbarch,
int ret;
old_cleanups = record_full_gdb_operation_disable_set ();
- ret = record_full_beneath_to_insert_breakpoint (gdbarch, bp_tgt);
+ ret = record_full_beneath_to_insert_breakpoint (ops->beneath, gdbarch,
+ bp_tgt);
do_cleanups (old_cleanups);
if (ret != 0)
@@ -1782,7 +1786,8 @@ record_full_insert_breakpoint (struct gdbarch *gdbarch,
/* "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;
@@ -1802,7 +1807,8 @@ record_full_remove_breakpoint (struct gdbarch *gdbarch,
int ret;
old_cleanups = record_full_gdb_operation_disable_set ();
- ret = record_full_beneath_to_remove_breakpoint (gdbarch, bp_tgt);
+ ret = record_full_beneath_to_remove_breakpoint (ops->beneath,
+ gdbarch, bp_tgt);
do_cleanups (old_cleanups);
if (ret != 0)
@@ -2252,7 +2258,8 @@ record_full_core_xfer_partial (struct target_ops *ops,
/* "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;
@@ -2261,7 +2268,8 @@ record_full_core_insert_breakpoint (struct gdbarch *gdbarch,
/* "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;
diff --git a/gdb/remote-m32r-sdi.c b/gdb/remote-m32r-sdi.c
index f560388..c606d71 100644
--- a/gdb/remote-m32r-sdi.c
+++ b/gdb/remote-m32r-sdi.c
@@ -1145,7 +1145,8 @@ m32r_mourn_inferior (struct target_ops *ops)
}
static int
-m32r_insert_breakpoint (struct gdbarch *gdbarch,
+m32r_insert_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
@@ -1189,7 +1190,8 @@ m32r_insert_breakpoint (struct gdbarch *gdbarch,
}
static int
-m32r_remove_breakpoint (struct gdbarch *gdbarch,
+m32r_remove_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
diff --git a/gdb/remote-mips.c b/gdb/remote-mips.c
index 5b3254d..507e157 100644
--- a/gdb/remote-mips.c
+++ b/gdb/remote-mips.c
@@ -2363,27 +2363,27 @@ mips_mourn_inferior (struct target_ops *ops)
target contents. */
static int
-mips_insert_breakpoint (struct gdbarch *gdbarch,
+mips_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
if (monitor_supports_breakpoints)
return mips_set_breakpoint (bp_tgt->placed_address, MIPS_INSN32_SIZE,
BREAK_FETCH);
else
- return memory_insert_breakpoint (gdbarch, bp_tgt);
+ return memory_insert_breakpoint (ops, gdbarch, bp_tgt);
}
/* Remove a breakpoint. */
static int
-mips_remove_breakpoint (struct gdbarch *gdbarch,
+mips_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
if (monitor_supports_breakpoints)
return mips_clear_breakpoint (bp_tgt->placed_address, MIPS_INSN32_SIZE,
BREAK_FETCH);
else
- return memory_remove_breakpoint (gdbarch, bp_tgt);
+ return memory_remove_breakpoint (ops, gdbarch, bp_tgt);
}
/* Tell whether this target can support a hardware breakpoint. CNT
diff --git a/gdb/remote.c b/gdb/remote.c
index 5fe1c53..99ab6e0 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -8205,7 +8205,8 @@ remote_add_target_side_commands (struct gdbarch *gdbarch,
which don't, we insert a traditional memory breakpoint. */
static int
-remote_insert_breakpoint (struct gdbarch *gdbarch,
+remote_insert_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
/* Try the "Z" s/w breakpoint packet if it is not already disabled.
@@ -8261,11 +8262,12 @@ remote_insert_breakpoint (struct gdbarch *gdbarch,
}
}
- return memory_insert_breakpoint (gdbarch, bp_tgt);
+ return memory_insert_breakpoint (ops, gdbarch, bp_tgt);
}
static int
-remote_remove_breakpoint (struct gdbarch *gdbarch,
+remote_remove_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
CORE_ADDR addr = bp_tgt->placed_address;
@@ -8295,7 +8297,7 @@ remote_remove_breakpoint (struct gdbarch *gdbarch,
return (rs->buf[0] == 'E');
}
- return memory_remove_breakpoint (gdbarch, bp_tgt);
+ return memory_remove_breakpoint (ops, gdbarch, bp_tgt);
}
static int
diff --git a/gdb/target.c b/gdb/target.c
index 0759ae9..c9fef6b 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -85,10 +85,10 @@ static void debug_to_open (char *, int);
static void debug_to_files_info (struct target_ops *);
-static int debug_to_insert_breakpoint (struct gdbarch *,
+static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
-static int debug_to_remove_breakpoint (struct gdbarch *,
+static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
static int debug_to_can_use_hw_breakpoint (int, int, int);
@@ -580,8 +580,8 @@ update_current_target (void)
/* Do not inherit to_prepare_to_store. */
INHERIT (deprecated_xfer_memory, t);
INHERIT (to_files_info, t);
- INHERIT (to_insert_breakpoint, t);
- INHERIT (to_remove_breakpoint, t);
+ /* Do not inherit to_insert_breakpoint. */
+ /* Do not inherit to_remove_breakpoint. */
INHERIT (to_can_use_hw_breakpoint, t);
INHERIT (to_insert_hw_breakpoint, t);
INHERIT (to_remove_hw_breakpoint, t);
@@ -718,10 +718,6 @@ update_current_target (void)
de_fault (to_files_info,
(void (*) (struct target_ops *))
target_ignore);
- de_fault (to_insert_breakpoint,
- memory_insert_breakpoint);
- de_fault (to_remove_breakpoint,
- memory_remove_breakpoint);
de_fault (to_can_use_hw_breakpoint,
(int (*) (int, int, int))
return_zero);
@@ -2449,9 +2445,12 @@ get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr,
return extract_unsigned_integer (buf, len, byte_order);
}
+/* See target.h. */
+
int
-target_insert_breakpoint (struct gdbarch *gdbarch,
- struct bp_target_info *bp_tgt)
+forward_target_insert_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
{
if (!may_insert_breakpoints)
{
@@ -2459,13 +2458,29 @@ target_insert_breakpoint (struct gdbarch *gdbarch,
return 1;
}
- return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt);
+ for (; ops != NULL; ops = ops->beneath)
+ if (ops->to_insert_breakpoint != NULL)
+ return ops->to_insert_breakpoint (ops, gdbarch, bp_tgt);
+
+ return memory_insert_breakpoint (ops, gdbarch, bp_tgt);
}
+/* See target.h. */
+
int
-target_remove_breakpoint (struct gdbarch *gdbarch,
+target_insert_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
+ return forward_target_insert_breakpoint (¤t_target, gdbarch, bp_tgt);
+}
+
+/* See target.h. */
+
+int
+forward_target_remove_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
+{
/* This is kind of a weird case to handle, but the permission might
have been changed after breakpoints were inserted - in which case
we should just take the user literally and assume that any
@@ -2476,7 +2491,20 @@ target_remove_breakpoint (struct gdbarch *gdbarch,
return 1;
}
- return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt);
+ for (; ops != NULL; ops = ops->beneath)
+ if (ops->to_remove_breakpoint != NULL)
+ return ops->to_remove_breakpoint (ops, gdbarch, bp_tgt);
+
+ return memory_remove_breakpoint (ops, gdbarch, bp_tgt);
+}
+
+/* See target.h. */
+
+int
+target_remove_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
+{
+ return forward_target_remove_breakpoint (¤t_target, gdbarch, bp_tgt);
}
static void
@@ -4547,12 +4575,12 @@ debug_to_files_info (struct target_ops *target)
}
static int
-debug_to_insert_breakpoint (struct gdbarch *gdbarch,
+debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt);
+ retval = forward_target_insert_breakpoint (&debug_target, gdbarch, bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_insert_breakpoint (%s, xxx) = %ld\n",
@@ -4562,12 +4590,12 @@ debug_to_insert_breakpoint (struct gdbarch *gdbarch,
}
static int
-debug_to_remove_breakpoint (struct gdbarch *gdbarch,
+debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt);
+ retval = forward_target_remove_breakpoint (&debug_target, gdbarch, bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_remove_breakpoint (%s, xxx) = %ld\n",
diff --git a/gdb/target.h b/gdb/target.h
index c415266..212f8d0 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -403,8 +403,10 @@ struct target_ops
struct target_ops *target);
void (*to_files_info) (struct target_ops *);
- int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *);
- int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *);
+ int (*to_insert_breakpoint) (struct target_ops *, struct gdbarch *,
+ struct bp_target_info *);
+ int (*to_remove_breakpoint) (struct target_ops *, struct gdbarch *,
+ struct bp_target_info *);
int (*to_can_use_hw_breakpoint) (int, int, int);
int (*to_ranged_break_num_registers) (struct target_ops *);
int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
@@ -1132,12 +1134,27 @@ int target_write_memory_blocks (VEC(memory_write_request_s) *requests,
(*current_target.to_files_info) (¤t_target)
/* Insert a breakpoint at address BP_TGT->placed_address in the target
+ machine. Result is 0 for success, non-zero for error.
+ Start the target search at OPS. */
+
+extern int forward_target_insert_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt);
+
+/* Insert a breakpoint at address BP_TGT->placed_address in the target
machine. Result is 0 for success, non-zero for error. */
extern int target_insert_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt);
/* Remove a breakpoint at address BP_TGT->placed_address in the target
+ machine. Result is 0 for success, non-zero for error.
+ Start the target search at OPS. */
+
+extern int forward_target_remove_breakpoint (struct target_ops *ops,
+ struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt);
+/* Remove a breakpoint at address BP_TGT->placed_address in the target
machine. Result is 0 for success, non-zero for error. */
extern int target_remove_breakpoint (struct gdbarch *gdbarch,
@@ -1884,10 +1901,10 @@ extern struct target_section_table *target_get_section_table
/* From mem-break.c */
-extern int memory_remove_breakpoint (struct gdbarch *,
+extern int memory_remove_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
-extern int memory_insert_breakpoint (struct gdbarch *,
+extern int memory_insert_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
extern int default_memory_remove_breakpoint (struct gdbarch *,
--
1.8.3.1
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