sim-himem-trace.patch

microwindows移植到S3C44B0的源码

diff -up sim/v850/sim-main.h.\~5\~ sim/v850/sim-main.h
--- sim/v850/sim-main.h.~5~	Fri Sep  7 13:56:29 2001
+++ sim/v850/sim-main.h	Tue Sep 18 16:06:02 2001
@@ -208,6 +208,14 @@ extern address_word sim_lomem_write_prot
 			    address_word addr, unsigned len,
 			    sim_cia cia, int is_write);
 
+/* Boundary above which writes are traced.  */
+extern address_word sim_himem_trace_boundary;
+/* Called to trace loads/stores to memory above sim_himem_trace_boundary.  */
+extern void sim_trace_himem_fw (SIM_DESC sd, sim_cpu *cpu,
+				address_word addr, unsigned len,
+				unsigned long val,
+				sim_cia cia, int is_write);
+
 #define load_mem(ADDR,LEN)						      \
   ({									      \
     address_word _addr = (ADDR);					      \
@@ -229,6 +237,8 @@ extern void sim_lomem_falt (SIM_DESC sd,
     sim_cpu *cpu = STATE_CPU (sd, 0);					      \
     if (_addr < sim_lomem_write_protect_boundary)			      \
       sim_lomem_fault (sd, cpu, _addr, LEN, PC, 1);			      \
+    else if (_addr > sim_himem_trace_boundary)				      \
+      sim_trace_himem_rw (sd, cpu, _addr, LEN, (unsigned long)_data, PC, 1);  \
     else								      \
       sim_core_write_unaligned_##LEN (cpu, PC, write_map, _addr, _data);      \
   })
diff -up sim/v850/interp.c.\~5\~ sim/v850/interp.c
--- sim/v850/interp.c.~5~	Fri Sep  7 14:33:22 2001
+++ sim/v850/interp.c	Tue Sep 18 16:09:22 2001
@@ -32,6 +32,13 @@ static const char * get_insn_name (sim_c
 SIM_DESC simulator;
 
 
+#define stringify(sym)		stringify_1(sym)
+#define stringify_1(sym)	#sym
+
+
+#define IO_MEM_BOUNDARY 0xFFFFF000
+
+
 
 /* Options.  */
 
@@ -39,7 +46,8 @@ enum {
   OPTION_V850_RECENT_BRANCHES = OPTION_START,
   OPTION_V850_READ_PROTECT_LOMEM,
   OPTION_V850_WRITE_PROTECT_LOMEM,
-  OPTION_V850_PROTECTED_LOMEM_INFO
+  OPTION_V850_PROTECTED_LOMEM_INFO,
+  OPTION_V850_TRACE_IO_WRITES
 };
 
 static DECLARE_OPTION_HANDLER (v850_option_handler);
@@ -61,6 +69,11 @@ static const OPTION v850_options[] =
      OPTION_V850_PROTECTED_LOMEM_INFO },
     '\0', NULL, "Show which low-memory addresses are protected from reading/writing",
     v850_option_handler },
+  { {"trace-io-writes", required_argument, NULL,
+     OPTION_V850_TRACE_IO_WRITES },
+    '\0', "on|off",
+    "Trace writes to I/O memory (above " stringify(IO_MEM_BOUNDARY) ")",
+    v850_option_handler },
   { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
 };
 
@@ -113,6 +126,20 @@ v850_option_handler (SIM_DESC sd, sim_cp
       }
       return SIM_RC_OK;
 
+    case OPTION_V850_TRACE_IO_WRITES:
+      {
+	if (strcmp (arg, "on") == 0 || strcmp (arg, "yes") == 0)
+	  sim_himem_trace_boundary = IO_MEM_BOUNDARY;
+	else if (strcmp (arg, "off") == 0 || strcmp (arg, "no") == 0)
+	  sim_himem_trace_boundary = 0xFFFFFFF;
+	else
+	  {
+	    sim_io_eprintf (sd, "Invalid argument `%s'\n", arg);
+	    return SIM_RC_FAIL;
+	  }	  
+      }
+      return SIM_RC_OK;
+
     default:
       sim_io_eprintf (sd, "Unknown v850 option %d\n", opt);
       return SIM_RC_FAIL;
@@ -527,4 +554,25 @@ address_word sim_lomem_read_protect_boun
 	  "core: %d byte %s protected low memory address 0x%lx at 0x%lx\n",
 		  len, is_write ? "write to" : "read from", addr, cia);
   sim_engine_halt (sd, cpu, NULL, cia, sim_stopped, SIM_SIGSEGV);
+}
+
+/* Boundary above which writes are traced.  */
+address_word sim_himem_trace_boundary;
+
+/* Called to trace loads/stores to memory above sim_himem_trace_boundary.  */
+void
+sim_trace_himem_rw (SIM_DESC sd, sim_cpu *cpu,
+		    address_word addr, unsigned len, unsigned long val,
+		    sim_cia cia, int is_write)
+{
+  const char *v = is_write ? "write" : "read";
+  const char *p = is_write ? "to" : "from";
+  if (len == 1 && isascii (val) && isprint ((char)val))
+    sim_io_printf (sd,
+		   "core: %d byte %s at 0x%lx %s high memory address 0x%lx: 0x%02lx ('%c')\n",
+		   len, v, cia, p, addr, val, (char)val);
+  else
+    sim_io_printf (sd,
+		   "core: %d byte %s at 0x%lx %s high memory address 0x%lx: 0x%0*lx (%ld)\n",
+		   len, v, cia, p, addr, len * 2, val, val);
 }