- correctly initialize start address for XScale trace buffer decodes in fill-once...

[openocd.git] / src / target / xscale.c

diff --git a/src/target/xscale.c b/src/target/xscale.c
index 59f1795e267d2d1f97df5ed8e07057d84605943e..b207dbb260b3795b7e722cefa58184e0673407b9 100644 (file)
--- a/src/target/xscale.c
+++ b/src/target/xscale.c
@@ -3440,6 +3440,19 @@ int xscale_handle_trace_buffer_command(struct command_context_s *cmd_ctx, char *
                xscale->trace.buffer_fill = -1;
        }
        
+       if (xscale->trace.buffer_enabled)
+       {
+               /* if we enable the trace buffer in fill-once
+                * mode we know the address of the first instruction */
+               xscale->trace.pc_ok = 1;
+               xscale->trace.current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+       }
+       else
+       {
+               /* otherwise the address is unknown, and we have no known good PC */
+               xscale->trace.pc_ok = 0;
+       }
+       
        command_print(cmd_ctx, "trace buffer %s (%s)", 
                (xscale->trace.buffer_enabled) ? "enabled" : "disabled",
                (xscale->trace.buffer_fill > 0) ? "fill" : "wrap");