aboutsummaryrefslogtreecommitdiff
path: root/gdb/gdbserver/linux-arm-low.c
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/gdbserver/linux-arm-low.c')
-rw-r--r--gdb/gdbserver/linux-arm-low.c73
1 files changed, 44 insertions, 29 deletions
diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index d7813ab..c4cfbd4 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -439,43 +439,39 @@ arm_linux_hw_breakpoint_equal (const struct arm_linux_hw_breakpoint *p1,
return p1->address == p2->address && p1->control == p2->control;
}
+/* Convert a raw breakpoint type to an enum arm_hwbp_type. */
+
+static int
+raw_bkpt_type_to_arm_hwbp_type (enum raw_bkpt_type raw_type)
+{
+ switch (raw_type)
+ {
+ case raw_bkpt_type_hw:
+ return arm_hwbp_break;
+ case raw_bkpt_type_write_wp:
+ return arm_hwbp_store;
+ case raw_bkpt_type_read_wp:
+ return arm_hwbp_load;
+ case raw_bkpt_type_access_wp:
+ return arm_hwbp_access;
+ default:
+ gdb_assert_not_reached ("unhandled raw type");
+ }
+}
+
/* Initialize the hardware breakpoint structure P for a breakpoint or
watchpoint at ADDR to LEN. The type of watchpoint is given in TYPE.
Returns -1 if TYPE is unsupported, or -2 if the particular combination
of ADDR and LEN cannot be implemented. Otherwise, returns 0 if TYPE
represents a breakpoint and 1 if type represents a watchpoint. */
static int
-arm_linux_hw_point_initialize (char type, CORE_ADDR addr, int len,
- struct arm_linux_hw_breakpoint *p)
+arm_linux_hw_point_initialize (enum raw_bkpt_type raw_type, CORE_ADDR addr,
+ int len, struct arm_linux_hw_breakpoint *p)
{
arm_hwbp_type hwbp_type;
unsigned mask;
- /* Breakpoint/watchpoint types (GDB terminology):
- 0 = memory breakpoint for instructions
- (not supported; done via memory write instead)
- 1 = hardware breakpoint for instructions (supported)
- 2 = write watchpoint (supported)
- 3 = read watchpoint (supported)
- 4 = access watchpoint (supported). */
- switch (type)
- {
- case '1':
- hwbp_type = arm_hwbp_break;
- break;
- case '2':
- hwbp_type = arm_hwbp_store;
- break;
- case '3':
- hwbp_type = arm_hwbp_load;
- break;
- case '4':
- hwbp_type = arm_hwbp_access;
- break;
- default:
- /* Unsupported. */
- return -1;
- }
+ hwbp_type = raw_bkpt_type_to_arm_hwbp_type (raw_type);
if (hwbp_type == arm_hwbp_break)
{
@@ -559,9 +555,26 @@ update_registers_callback (struct inferior_list_entry *entry, void *arg)
return 0;
}
+static int
+arm_supports_z_point_type (char z_type)
+{
+ switch (z_type)
+ {
+ case Z_PACKET_HW_BP:
+ case Z_PACKET_WRITE_WP:
+ case Z_PACKET_READ_WP:
+ case Z_PACKET_ACCESS_WP:
+ return 1;
+ default:
+ /* Leave the handling of sw breakpoints with the gdb client. */
+ return 0;
+ }
+}
+
/* Insert hardware break-/watchpoint. */
static int
-arm_insert_point (char type, CORE_ADDR addr, int len)
+arm_insert_point (enum raw_bkpt_type type, CORE_ADDR addr,
+ int len, struct raw_breakpoint *bp)
{
struct process_info *proc = current_process ();
struct arm_linux_hw_breakpoint p, *pts;
@@ -600,7 +613,8 @@ arm_insert_point (char type, CORE_ADDR addr, int len)
/* Remove hardware break-/watchpoint. */
static int
-arm_remove_point (char type, CORE_ADDR addr, int len)
+arm_remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
+ int len, struct raw_breakpoint *bp)
{
struct process_info *proc = current_process ();
struct arm_linux_hw_breakpoint p, *pts;
@@ -896,6 +910,7 @@ struct linux_target_ops the_low_target = {
arm_reinsert_addr,
0,
arm_breakpoint_at,
+ arm_supports_z_point_type,
arm_insert_point,
arm_remove_point,
arm_stopped_by_watchpoint,