watchpoint facility for ptx debugging

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7160]

1 files changed, 1 insertions, 109 deletions

diff --git a/src/gpgpu-sim/gpu-sim.cc b/src/gpgpu-sim/gpu-sim.cc
index 2b4ebe3..1bec72f 100644
--- a/src/gpgpu-sim/gpu-sim.cc
+++ b/src/gpgpu-sim/gpu-sim.cc
@@ -82,6 +82,7 @@
 #include "../cuda-sim/ptx-stats.h"
 #include "../intersim/statwraper.h"
 #include "../abstract_hardware_model.h"
+#include "../debug.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -206,7 +207,6 @@ void check_time_vector_update(unsigned int uid,int slot ,long int latency,int ty
 void node_req_hist_clear(void *p);
 void node_req_hist_dump(void *p);
 void node_req_hist_update(void * p,int node, long long cycle);
-static void gpgpu_debug();
 
 /* functionally simulated memory */
 extern struct mem_t *mem;
@@ -1765,111 +1765,3 @@ void dump_pipeline()
    dump_pipeline_impl(0,-1,-1);
 }
 
-/// interactive debugger 
-
-static void gpgpu_debug()
-{
-   bool done=true;
-
-   static bool single_step=true;
-   static unsigned next_brkpt=1;
-   static std::map<unsigned,brk_pt> breakpoints;
-
-   /// if single stepping, go to interactive debugger
-
-   if( single_step ) 
-      done=false;
-
-   /// check if we've reached a breakpoint
-
-   for( std::map<unsigned,brk_pt>::iterator i=breakpoints.begin(); i!=breakpoints.end(); i++) {
-      unsigned num=i->first;
-      brk_pt &b=i->second;
-      if( b.is_watchpoint() ) {
-         unsigned addr = b.get_addr();
-         unsigned new_value = read_location(addr);
-         if( new_value != b.get_value() ) {
-            printf( "GPGPU-Sim DBG: watch point %u triggered (old value=%x, new value=%x)\n",
-                     num,b.get_value(),new_value );
-            b.set_value(new_value);
-            done = false; 
-         }
-      } else {
-         for( unsigned sid=0; sid < gpu_n_shader; sid++ ) { 
-            inst_t *fvi = first_valid_thread(sc[sid]->pipeline_reg[IF_ID]);
-            if( !fvi ) continue;
-            if( thread_at_brkpt(fvi->ptx_thd_info, b) ) {
-               done = false;
-               printf("GPGPU-Sim DBG: reached breakpoint %u at %s (sm=%u, hwtid=%u)\n", 
-                      num, b.location().c_str(), sid, fvi->hw_thread_id );
-            }
-         }
-      }
-   }
-
-   /// enter interactive debugger loop
-
-   while (!done) {
-      printf("(gpgpu-sim dbg) ");
-      fflush(stdout);
-      
-      char line[1024];
-      fgets(line,1024,stdin);
-
-      char *tok = strtok(line," \t\n");
-      if( !strcmp(tok,"dp") ) {
-         int shader_num = 0;
-         tok = strtok(NULL," \t\n");
-         sscanf(tok,"%d",&shader_num);
-         dump_pipeline_impl((0x40|0x4|0x1),shader_num,0);
-         printf("\n");
-         fflush(stdout);
-      } else if( !strcmp(tok,"q") || !strcmp(tok,"quit") ) {
-         printf("\nreally quit GPGPU-Sim (y/n)?\n");
-         fgets(line,1024,stdin);
-         tok = strtok(NULL," \t\n");
-         if( !strcmp(tok,"y") ) {
-            exit(0);
-         } else {
-            printf("not quiting.\n");
-         }
-      } else if( !strcmp(tok,"b") ) {
-         tok = strtok(NULL," \t\n");
-         char brkpt[1024];
-         sscanf(tok,"%s",brkpt);
-         tok = strtok(NULL," \t\n");
-         unsigned uid;
-         sscanf(tok,"%u",&uid);
-         breakpoints[next_brkpt++] = brk_pt(brkpt,uid);
-      } else if( !strcmp(tok,"d") ) {
-         tok = strtok(NULL," \t\n");
-         unsigned uid;
-         sscanf(tok,"%u",&uid);
-         breakpoints.erase(uid);
-      } else if( !strcmp(tok,"s") ) {
-         done = true;
-      } else if( !strcmp(tok,"c") ) {
-         single_step=false;
-         done = true;
-      } else if( !strcmp(tok,"w") ) {
-         tok = strtok(NULL," \t\n");
-         unsigned addr;
-         sscanf(tok,"%x",&addr);
-         unsigned value = read_location(addr);
-         breakpoints[next_brkpt++] = brk_pt(addr,value);
-      } else if( !strcmp(tok,"h") ) {
-         printf("commands:\n");
-         printf("  q                           - quit GPGPU-Sim\n");
-         printf("  b <file>:<line> <thead uid> - set breakpoint\n");
-         printf("  w <global address>          - set watchpoint\n");
-         printf("  del <n>                     - delete breakpoint\n");
-         printf("  s                           - single step one shader cycle (all cores)\n");
-         printf("  c                           - continue simulation without single stepping\n");
-         printf("  dp <n>                      - display pipeline contents on SM <n>\n");
-         printf("  h                           - print this message\n");
-      } else {
-         printf("\ncommand not understood.\n");
-      }
-      fflush(stdout);
-   }
-}