Merge pull request #117 from riscv/multicore_debug

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

diff --git a/spike_main/spike.cc b/spike_main/spike.cc
index 5abdf2412eeb0fe615b762281b123682a48ab917..23f8e49c0deeca8bffe414cc341353912f244fd4 100644 (file)
--- a/spike_main/spike.cc
+++ b/spike_main/spike.cc
@@ -2,7 +2,7 @@
 
 #include "sim.h"
 #include "mmu.h"
-#include "gdbserver.h"
+#include "remote_bitbang.h"
 #include "cachesim.h"
 #include "extension.h"
 #include <dlfcn.h>
@@ -27,13 +27,13 @@ static void help()
   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, "  --pc=<address>        Set the initial program counter [default 0x80000000]\n");
+  fprintf(stderr, "  --pc=<address>        Override ELF entry point\n");
   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, "  --gdb-port=<port>  Listen on <port> for gdb to connect\n");
+  fprintf(stderr, "  --rbb-port=<port>     Listen on <port> for remote bitbang connection\n");
   fprintf(stderr, "  --dump-dts  Print device tree string and exit\n");
   exit(1);
 }
@@ -75,14 +75,15 @@ int main(int argc, char** argv)
   bool log = false;
   bool dump_dts = false;
   size_t nprocs = 1;
-  reg_t start_pc = DRAM_BASE;
+  reg_t start_pc = reg_t(-1);
   std::vector<std::pair<reg_t, mem_t*>> mems;
   std::unique_ptr<icache_sim_t> ic;
   std::unique_ptr<dcache_sim_t> dc;
   std::unique_ptr<cache_sim_t> l2;
   std::function<extension_t*()> extension;
   const char* isa = DEFAULT_ISA;
-  uint16_t gdb_port = 0;
+  uint16_t rbb_port = 0;
+  bool use_rbb = false;
 
   option_parser_t parser;
   parser.help(&help);
@@ -94,7 +95,7 @@ int main(int argc, char** argv)
   parser.option('m', 0, 1, [&](const char* s){mems = make_mems(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, "gdb-port", 1, [&](const char* s){gdb_port = atoi(s);});
+  parser.option(0, "rbb-port", 1, [&](const char* s){use_rbb = true; rbb_port = atoi(s);});
   parser.option(0, "pc", 1, [&](const char* s){start_pc = strtoull(s, 0, 0);});
   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));});
@@ -116,10 +117,11 @@ int main(int argc, char** argv)
     mems = make_mems("2048");
 
   sim_t s(isa, nprocs, halted, start_pc, mems, htif_args);
-  std::unique_ptr<gdbserver_t> gdbserver;
-  if (gdb_port) {
-    gdbserver = std::unique_ptr<gdbserver_t>(new gdbserver_t(gdb_port, &s));
-    s.set_gdbserver(&(*gdbserver));
+  std::unique_ptr<remote_bitbang_t> remote_bitbang((remote_bitbang_t *) NULL);
+  std::unique_ptr<jtag_dtm_t> jtag_dtm(new jtag_dtm_t(&s.debug_module));
+  if (use_rbb) {
+    remote_bitbang.reset(new remote_bitbang_t(rbb_port, &(*jtag_dtm)));
+    s.set_remote_bitbang(&(*remote_bitbang));
   }
 
   if (dump_dts) {