1 // See LICENSE for license details.
9 #include <fesvr/option_parser.h>
18 fprintf(stderr
, "usage: spike [host options] <target program> [target options]\n");
19 fprintf(stderr
, "Host Options:\n");
20 fprintf(stderr
, " -p<n> Simulate <n> processors [default 1]\n");
21 fprintf(stderr
, " -m<n> Provide <n> MiB of target memory [default 4096]\n");
22 fprintf(stderr
, " -d Interactive debug mode\n");
23 fprintf(stderr
, " -g Track histogram of PCs\n");
24 fprintf(stderr
, " -l Generate a log of execution\n");
25 fprintf(stderr
, " -h Print this help message\n");
26 fprintf(stderr
, " -H Start halted, allowing a debugger to connect\n");
27 fprintf(stderr
, " --isa=<name> RISC-V ISA string [default %s]\n", DEFAULT_ISA
);
28 fprintf(stderr
, " --ic=<S>:<W>:<B> Instantiate a cache model with S sets,\n");
29 fprintf(stderr
, " --dc=<S>:<W>:<B> W ways, and B-byte blocks (with S and\n");
30 fprintf(stderr
, " --l2=<S>:<W>:<B> B both powers of 2).\n");
31 fprintf(stderr
, " --extension=<name> Specify RoCC Extension\n");
32 fprintf(stderr
, " --extlib=<name> Shared library to load\n");
33 fprintf(stderr
, " --gdb-port=<port> Listen on <port> for gdb to connect\n");
34 fprintf(stderr
, " --dump-config-string Print platform configuration string and exit\n");
38 int main(int argc
, char** argv
)
42 bool histogram
= false;
44 bool dump_config_string
= false;
47 std::unique_ptr
<icache_sim_t
> ic
;
48 std::unique_ptr
<dcache_sim_t
> dc
;
49 std::unique_ptr
<cache_sim_t
> l2
;
50 std::function
<extension_t
*()> extension
;
51 const char* isa
= DEFAULT_ISA
;
52 uint16_t gdb_port
= 0;
54 option_parser_t parser
;
56 parser
.option('h', 0, 0, [&](const char* s
){help();});
57 parser
.option('d', 0, 0, [&](const char* s
){debug
= true;});
58 parser
.option('g', 0, 0, [&](const char* s
){histogram
= true;});
59 parser
.option('l', 0, 0, [&](const char* s
){log
= true;});
60 parser
.option('p', 0, 1, [&](const char* s
){nprocs
= atoi(s
);});
61 parser
.option('m', 0, 1, [&](const char* s
){mem_mb
= atoi(s
);});
62 // I wanted to use --halted, but for some reason that doesn't work.
63 parser
.option('H', 0, 0, [&](const char* s
){halted
= true;});
64 parser
.option(0, "gdb-port", 1, [&](const char* s
){gdb_port
= atoi(s
);});
65 parser
.option(0, "ic", 1, [&](const char* s
){ic
.reset(new icache_sim_t(s
));});
66 parser
.option(0, "dc", 1, [&](const char* s
){dc
.reset(new dcache_sim_t(s
));});
67 parser
.option(0, "l2", 1, [&](const char* s
){l2
.reset(cache_sim_t::construct(s
, "L2$"));});
68 parser
.option(0, "isa", 1, [&](const char* s
){isa
= s
;});
69 parser
.option(0, "extension", 1, [&](const char* s
){extension
= find_extension(s
);});
70 parser
.option(0, "dump-config-string", 0, [&](const char *s
){dump_config_string
= true;});
71 parser
.option(0, "extlib", 1, [&](const char *s
){
72 void *lib
= dlopen(s
, RTLD_NOW
| RTLD_GLOBAL
);
74 fprintf(stderr
, "Unable to load extlib '%s': %s\n", s
, dlerror());
79 auto argv1
= parser
.parse(argv
);
80 std::vector
<std::string
> htif_args(argv1
, (const char*const*)argv
+ argc
);
81 sim_t
s(isa
, nprocs
, mem_mb
, halted
, htif_args
);
82 std::unique_ptr
<gdbserver_t
> gdbserver
;
84 gdbserver
= std::unique_ptr
<gdbserver_t
>(new gdbserver_t(gdb_port
, &s
));
85 s
.set_gdbserver(&(*gdbserver
));
88 if (dump_config_string
) {
89 printf("%s", s
.get_config_string());
96 if (ic
&& l2
) ic
->set_miss_handler(&*l2
);
97 if (dc
&& l2
) dc
->set_miss_handler(&*l2
);
98 for (size_t i
= 0; i
< nprocs
; i
++)
100 if (ic
) s
.get_core(i
)->get_mmu()->register_memtracer(&*ic
);
101 if (dc
) s
.get_core(i
)->get_mmu()->register_memtracer(&*dc
);
102 if (extension
) s
.get_core(i
)->register_extension(extension());
107 s
.set_histogram(histogram
);