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// See LICENSE for license details.
#include "sim.h"
#include "htif.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>
static void help()
{
fprintf(stderr, "usage: spike [host options] <target program> [target options]\n");
fprintf(stderr, "Host Options:\n");
fprintf(stderr, " -p <n> Simulate <n> processors\n");
fprintf(stderr, " -m <n> Provide <n> MB of target memory\n");
fprintf(stderr, " -d Interactive debug mode\n");
fprintf(stderr, " -h Print this help message\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");
exit(1);
}
int main(int argc, char** argv)
{
bool debug = false;
size_t nprocs = 1;
size_t mem_mb = 0;
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;
option_parser_t parser;
parser.help(&help);
parser.option('h', 0, 0, [&](const char* s){help();});
parser.option('d', 0, 0, [&](const char* s){debug = true;});
parser.option('p', 0, 1, [&](const char* s){nprocs = atoi(s);});
parser.option('m', 0, 1, [&](const char* s){mem_mb = 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$"));});
parser.option(0, "extension", 1, [&](const char* s){
if (!extensions().count(s))
fprintf(stderr, "unknown extension %s!\n", s), exit(-1);
extension = extensions()[s];
});
parser.option(0, "extlib", 1, [&](const char *s){
void *lib = dlopen(s, RTLD_NOW | RTLD_GLOBAL);
if (lib == NULL) {
fprintf(stderr, "Unable to load extlib '%s': %s\n", s, dlerror());
exit(-1);
}
});
auto argv1 = parser.parse(argv);
if (!*argv1)
help();
std::vector<std::string> htif_args(argv1, (const char*const*)argv + argc);
sim_t s(nprocs, mem_mb, htif_args);
if (ic && l2) ic->set_miss_handler(&*l2);
if (dc && l2) dc->set_miss_handler(&*l2);
for (size_t i = 0; i < nprocs; i++)
{
if (ic) s.get_core(i)->get_mmu()->register_memtracer(&*ic);
if (dc) s.get_core(i)->get_mmu()->register_memtracer(&*dc);
if (extension) s.get_core(i)->register_extension(extension());
}
s.set_debug(debug);
return s.run();
}
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