Refactor remote bitbang code.

[riscv-isa-sim.git] / spike_main / spike.cc

diff --git a/spike_main/spike.cc b/spike_main/spike.cc
index 6ca7beb2c4353e3b315d30eb25d97af9aa97bd6f..844d8e82d9aa927c0c2cf73215fee8f4397cc87c 100644 (file)
--- a/spike_main/spike.cc
+++ b/spike_main/spike.cc
@@ -1,14 +1,14 @@
 // See LICENSE for license details.
 
 #include "sim.h"
-#include "htif.h"
+#include "mmu.h"
+#include "remote_bitbang.h"
 #include "cachesim.h"
 #include "extension.h"
 #include <dlfcn.h>
 #include <fesvr/option_parser.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <getopt.h>
 #include <vector>
 #include <string>
 #include <memory>
@@ -23,12 +23,14 @@ static void help()
   fprintf(stderr, "  -g                    Track histogram of PCs\n");
   fprintf(stderr, "  -l                    Generate a log of execution\n");
   fprintf(stderr, "  -h                    Print this help message\n");
+  fprintf(stderr, "  -H                 Start halted, allowing a debugger to connect\n");
   fprintf(stderr, "  --isa=<name>          RISC-V ISA string [default %s]\n", DEFAULT_ISA);
   fprintf(stderr, "  --ic=<S>:<W>:<B>      Instantiate a cache model with S sets,\n");
   fprintf(stderr, "  --dc=<S>:<W>:<B>        W ways, and B-byte blocks (with S and\n");
   fprintf(stderr, "  --l2=<S>:<W>:<B>        B both powers of 2).\n");
   fprintf(stderr, "  --extension=<name>    Specify RoCC Extension\n");
   fprintf(stderr, "  --extlib=<name>       Shared library to load\n");
+  fprintf(stderr, "  --rbb-port=<port>     Listen on <port> for remote bitbang connection\n");
   fprintf(stderr, "  --dump-config-string  Print platform configuration string and exit\n");
   exit(1);
 }
@@ -36,6 +38,7 @@ static void help()
 int main(int argc, char** argv)
 {
   bool debug = false;
+  bool halted = false;
   bool histogram = false;
   bool log = false;
   bool dump_config_string = false;
@@ -46,6 +49,7 @@ int main(int argc, char** argv)
   std::unique_ptr<cache_sim_t> l2;
   std::function<extension_t*()> extension;
   const char* isa = DEFAULT_ISA;
+  uint16_t rbb_port = 0;
 
   option_parser_t parser;
   parser.help(&help);
@@ -55,6 +59,9 @@ int main(int argc, char** argv)
   parser.option('l', 0, 0, [&](const char* s){log = true;});
   parser.option('p', 0, 1, [&](const char* s){nprocs = atoi(s);});
   parser.option('m', 0, 1, [&](const char* s){mem_mb = atoi(s);});
+  // I wanted to use --halted, but for some reason that doesn't work.
+  parser.option('H', 0, 0, [&](const char* s){halted = true;});
+  parser.option(0, "rbb-port", 1, [&](const char* s){rbb_port = atoi(s);});
   parser.option(0, "ic", 1, [&](const char* s){ic.reset(new icache_sim_t(s));});
   parser.option(0, "dc", 1, [&](const char* s){dc.reset(new dcache_sim_t(s));});
   parser.option(0, "l2", 1, [&](const char* s){l2.reset(cache_sim_t::construct(s, "L2$"));});
@@ -71,7 +78,13 @@ int main(int argc, char** argv)
 
   auto argv1 = parser.parse(argv);
   std::vector<std::string> htif_args(argv1, (const char*const*)argv + argc);
-  sim_t s(isa, nprocs, mem_mb, htif_args);
+  sim_t s(isa, nprocs, mem_mb, halted, htif_args);
+  std::unique_ptr<jtag_dtm_t> jtag_dtm(new jtag_dtm_t());
+  std::unique_ptr<remote_bitbang_t> remote_bitbang;
+  if (rbb_port) {
+    remote_bitbang.reset(new remote_bitbang_t(rbb_port, &(*jtag_dtm)));
+    s.set_remote_bitbang(&(*remote_bitbang));
+  }
 
   if (dump_config_string) {
     printf("%s", s.get_config_string());