diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/breakpoint.c | 37 | ||||
| -rw-r--r-- | gdb/remote.c | 20 |
2 files changed, 23 insertions, 34 deletions
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c index 91eb5635ad6..472d8d08054 100644 --- a/gdb/breakpoint.c +++ b/gdb/breakpoint.c @@ -129,8 +129,7 @@ typedef enum } insertion_state_t; -static int remove_breakpoint (struct bp_location *, insertion_state_t, - struct value *); +static int remove_breakpoint (struct bp_location *, insertion_state_t); static enum print_stop_action print_it_typical (bpstat); @@ -949,7 +948,6 @@ insert_bp_location (struct bp_location *bpt, if (within_current_scope) { - struct value *val_failed = NULL; free_valchain (bpt); /* Evaluate the expression and cut the chain of values @@ -997,8 +995,13 @@ insert_bp_location (struct bp_location *bpt, val = target_insert_watchpoint (addr, len, type); if (val == -1) { - val_failed = v; - break; + /* Don't exit the loop, try to insert + every value on the value chain. That's + because we will be removing all the + watches below, and removing a + watchpoint we didn't insert could have + adverse effects. */ + bpt->inserted = 0; } val = 0; } @@ -1006,10 +1009,9 @@ insert_bp_location (struct bp_location *bpt, } /* Failure to insert a watchpoint on any memory value in the value chain brings us here. */ - if (val_failed) + if (!bpt->inserted) { - remove_breakpoint (bpt, mark_uninserted, val_failed); - bpt->inserted = 0; + remove_breakpoint (bpt, mark_uninserted); *hw_breakpoint_error = 1; fprintf_unfiltered (tmp_error_stream, "Could not insert hardware watchpoint %d.\n", @@ -1197,7 +1199,7 @@ remove_breakpoints (void) { if (b->inserted) { - val = remove_breakpoint (b, mark_uninserted, NULL); + val = remove_breakpoint (b, mark_uninserted); if (val != 0) return val; } @@ -1215,7 +1217,7 @@ remove_hw_watchpoints (void) { if (b->inserted && b->loc_type == bp_loc_hardware_watchpoint) { - val = remove_breakpoint (b, mark_uninserted, NULL); + val = remove_breakpoint (b, mark_uninserted); if (val != 0) return val; } @@ -1236,7 +1238,7 @@ reattach_breakpoints (int pid) { if (b->inserted) { - remove_breakpoint (b, mark_inserted, NULL); + remove_breakpoint (b, mark_inserted); if (b->loc_type == bp_loc_hardware_breakpoint) val = target_insert_hw_breakpoint (b->address, b->shadow_contents); else @@ -1404,7 +1406,7 @@ detach_breakpoints (int pid) { if (b->inserted) { - val = remove_breakpoint (b, mark_inserted, NULL); + val = remove_breakpoint (b, mark_inserted); if (val != 0) { do_cleanups (old_chain); @@ -1416,13 +1418,8 @@ detach_breakpoints (int pid) return 0; } -/* Remove the breakpoints for B. FAILED_VAL, if non-null is the value - in the bpt->owner->val_chain that failed to be inserted. We stop - at that point. */ - static int -remove_breakpoint (struct bp_location *b, insertion_state_t is, - struct value *val_failed) +remove_breakpoint (struct bp_location *b, insertion_state_t is) { int val; @@ -1506,7 +1503,7 @@ remove_breakpoint (struct bp_location *b, insertion_state_t is, b->inserted = (is == mark_inserted); /* Walk down the saved value chain. */ - for (v = b->owner->val_chain; v != val_failed; v = value_next (v)) + for (v = b->owner->val_chain; v; v = value_next (v)) { /* For each memory reference remove the watchpoint at that address. */ @@ -6778,7 +6775,7 @@ delete_breakpoint (struct breakpoint *bpt) breakpoint_delete_event (bpt->number); if (bpt->loc->inserted) - remove_breakpoint (bpt->loc, mark_inserted, NULL); + remove_breakpoint (bpt->loc, mark_inserted); free_valchain (bpt->loc); diff --git a/gdb/remote.c b/gdb/remote.c index 4602635f262..599bb2189ba 100644 --- a/gdb/remote.c +++ b/gdb/remote.c @@ -4670,9 +4670,7 @@ remote_insert_watchpoint (CORE_ADDR addr, int len, int type) enum Z_packet_type packet = watchpoint_to_Z_packet (type); if (remote_protocol_packets[PACKET_Z0 + packet].support == PACKET_DISABLE) - error (_("Can't set hardware watchpoints without the '%s' (%s) packet."), - remote_protocol_packets[PACKET_Z0 + packet].name, - remote_protocol_packets[PACKET_Z0 + packet].title); + return -1; sprintf (buf, "Z%x,", packet); p = strchr (buf, '\0'); @@ -4705,10 +4703,8 @@ remote_remove_watchpoint (CORE_ADDR addr, int len, int type) enum Z_packet_type packet = watchpoint_to_Z_packet (type); if (remote_protocol_packets[PACKET_Z0 + packet].support == PACKET_DISABLE) - error (_("Can't clear hardware watchpoints without the '%s' (%s) packet."), - remote_protocol_packets[PACKET_Z0 + packet].name, - remote_protocol_packets[PACKET_Z0 + packet].title); - + return -1; + sprintf (buf, "z%x,", packet); p = strchr (buf, '\0'); addr = remote_address_masked (addr); @@ -4796,10 +4792,8 @@ remote_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow) BREAKPOINT_FROM_PC (&addr, &len); if (remote_protocol_packets[PACKET_Z1].support == PACKET_DISABLE) - error (_("Can't set hardware breakpoint without the '%s' (%s) packet."), - remote_protocol_packets[PACKET_Z1].name, - remote_protocol_packets[PACKET_Z1].title); - + return -1; + *(p++) = 'Z'; *(p++) = '1'; *(p++) = ','; @@ -4838,9 +4832,7 @@ remote_remove_hw_breakpoint (CORE_ADDR addr, gdb_byte *shadow) BREAKPOINT_FROM_PC (&addr, &len); if (remote_protocol_packets[PACKET_Z1].support == PACKET_DISABLE) - error (_("Can't clear hardware breakpoint without the '%s' (%s) packet."), - remote_protocol_packets[PACKET_Z1].name, - remote_protocol_packets[PACKET_Z1].title); + return -1; *(p++) = 'z'; *(p++) = '1'; |