diff options
Diffstat (limited to 'src/target/xscale.c')
| -rw-r--r-- | src/target/xscale.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/src/target/xscale.c b/src/target/xscale.c index e578a778..24c07941 100644 --- a/src/target/xscale.c +++ b/src/target/xscale.c @@ -1206,6 +1206,7 @@ static int xscale_resume(struct target *target, int current, if (breakpoint != NULL) { uint32_t next_pc; + int saved_trace_buffer_enabled; /* there's a breakpoint at the current PC, we have to step over it */ LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 "", breakpoint->address); @@ -1225,15 +1226,8 @@ static int xscale_resume(struct target *target, int current, /* restore banked registers */ retval = xscale_restore_banked(target); - /* send resume request (command 0x30 or 0x31) - * clean the trace buffer if it is to be enabled (0x62) */ - if (xscale->trace.buffer_enabled) - { - xscale_send_u32(target, 0x62); - xscale_send_u32(target, 0x31); - } - else - xscale_send_u32(target, 0x30); + /* send resume request */ + xscale_send_u32(target, 0x30); /* send CPSR */ xscale_send_u32(target, @@ -1254,9 +1248,16 @@ static int xscale_resume(struct target *target, int current, LOG_DEBUG("writing PC with value 0x%8.8" PRIx32, buf_get_u32(armv4_5->pc->value, 0, 32)); + /* disable trace data collection in xscale_debug_entry() */ + saved_trace_buffer_enabled = xscale->trace.buffer_enabled; + xscale->trace.buffer_enabled = 0; + /* wait for and process debug entry */ xscale_debug_entry(target); + /* re-enable trace buffer, if enabled previously */ + xscale->trace.buffer_enabled = saved_trace_buffer_enabled; + LOG_DEBUG("disable single-step"); xscale_disable_single_step(target); @@ -1276,6 +1277,12 @@ static int xscale_resume(struct target *target, int current, * clean the trace buffer if it is to be enabled (0x62) */ if (xscale->trace.buffer_enabled) { + /* if trace buffer is set to 'fill' mode, save starting pc */ + if (xscale->trace.buffer_fill > 0) + { + xscale->trace.pc_ok = 1; + xscale->trace.current_pc = buf_get_u32(armv4_5->pc->value, 0, 32); + } xscale_send_u32(target, 0x62); xscale_send_u32(target, 0x31); } |