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gdbc: watchpoint support.

This commit is contained in:
Daniel Beer 2012-04-25 13:31:56 +12:00
parent a2ee047cc0
commit 7413531715
1 changed files with 17 additions and 7 deletions
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24
drivers/gdbc.c
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@ -216,10 +216,23 @@ static int do_reset(struct gdb_client *dev)
return 0;
}
static int bp_send(struct gdb_data *gdb, int c, address_t addr)
static int bp_send(struct gdb_data *gdb, int c, address_t addr,
device_bptype_t type)
{
int type_code = 0;
switch (type) {
case DEVICE_BPTYPE_BREAK:
type_code = 1;
break;
case DEVICE_BPTYPE_WATCH:
type_code = 4;
break;
}
gdb_packet_start(gdb);
gdb_printf(gdb, "%c1,%04x,2", c, addr);
gdb_printf(gdb, "%c%d,%04x,2", c, type_code, addr);
gdb_packet_end(gdb);
if (gdb_flush_ack(gdb) < 0)
return -1;
@ -238,15 +251,12 @@ static int refresh_bps(struct gdb_client *dev)
if (!(bp->flags & DEVICE_BP_DIRTY))
continue;
if (bp->type != DEVICE_BPTYPE_BREAK)
continue;
if ((old->flags & DEVICE_BP_ENABLED) &&
(bp_send(&dev->gdb, 'z', old->addr) < 0))
(bp_send(&dev->gdb, 'z', old->addr, old->type) < 0))
return -1;
if ((bp->flags & DEVICE_BP_ENABLED) &&
(bp_send(&dev->gdb, 'Z', bp->addr) < 0))
(bp_send(&dev->gdb, 'Z', bp->addr, bp->type) < 0))
return -1;
bp->flags &= ~DEVICE_BP_DIRTY;