1 // See LICENSE for license details.
5 #include "remote_bitbang.h"
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 2048]\n");
22 fprintf(stderr
, " -m<a:m,b:n,...> Provide memory regions of size m and n bytes\n");
23 fprintf(stderr
, " at base addresses a and b (with 4 KiB alignment)\n");
24 fprintf(stderr
, " -d Interactive debug mode\n");
25 fprintf(stderr
, " -g Track histogram of PCs\n");
26 fprintf(stderr
, " -l Generate a log of execution\n");
27 fprintf(stderr
, " -h Print this help message\n");
28 fprintf(stderr
, " -H Start halted, allowing a debugger to connect\n");
29 fprintf(stderr
, " --isa=<name> RISC-V ISA string [default %s]\n", DEFAULT_ISA
);
30 fprintf(stderr
, " --pc=<address> Override ELF entry point\n");
31 fprintf(stderr
, " --hartids=<a,b,...> Explicitly specify hartids, default is 0,1,...\n");
32 fprintf(stderr
, " --ic=<S>:<W>:<B> Instantiate a cache model with S sets,\n");
33 fprintf(stderr
, " --dc=<S>:<W>:<B> W ways, and B-byte blocks (with S and\n");
34 fprintf(stderr
, " --l2=<S>:<W>:<B> B both powers of 2).\n");
35 fprintf(stderr
, " --extension=<name> Specify RoCC Extension\n");
36 fprintf(stderr
, " --extlib=<name> Shared library to load\n");
37 fprintf(stderr
, " --rbb-port=<port> Listen on <port> for remote bitbang connection\n");
38 fprintf(stderr
, " --dump-dts Print device tree string and exit\n");
39 fprintf(stderr
, " --progsize=<words> progsize for the debug module [default 2]\n");
40 fprintf(stderr
, " --debug-sba=<bits> debug bus master supports up to "
41 "<bits> wide accesses [default 0]\n");
45 static std::vector
<std::pair
<reg_t
, mem_t
*>> make_mems(const char* arg
)
47 // handle legacy mem argument
49 auto mb
= strtoull(arg
, &p
, 0);
51 reg_t size
= reg_t(mb
) << 20;
52 if (size
!= (size_t)size
)
53 throw std::runtime_error("Size would overflow size_t");
54 return std::vector
<std::pair
<reg_t
, mem_t
*>>(1, std::make_pair(reg_t(DRAM_BASE
), new mem_t(size
)));
57 // handle base/size tuples
58 std::vector
<std::pair
<reg_t
, mem_t
*>> res
;
60 auto base
= strtoull(arg
, &p
, 0);
63 auto size
= strtoull(p
+ 1, &p
, 0);
64 if ((size
| base
) % PGSIZE
!= 0)
66 res
.push_back(std::make_pair(reg_t(base
), new mem_t(size
)));
76 int main(int argc
, char** argv
)
80 bool histogram
= false;
82 bool dump_dts
= false;
84 reg_t start_pc
= reg_t(-1);
85 std::vector
<std::pair
<reg_t
, mem_t
*>> mems
;
86 std::unique_ptr
<icache_sim_t
> ic
;
87 std::unique_ptr
<dcache_sim_t
> dc
;
88 std::unique_ptr
<cache_sim_t
> l2
;
89 std::function
<extension_t
*()> extension
;
90 const char* isa
= DEFAULT_ISA
;
91 uint16_t rbb_port
= 0;
93 unsigned progsize
= 2;
94 unsigned max_bus_master_bits
= 0;
95 std::vector
<int> hartids
;
97 auto const hartids_parser
= [&](const char *s
) {
98 std::string
const str(s
);
99 std::stringstream
stream(str
);
104 hartids
.push_back(n
);
105 if (stream
.peek() == ',') stream
.ignore();
109 option_parser_t parser
;
111 parser
.option('h', 0, 0, [&](const char* s
){help();});
112 parser
.option('d', 0, 0, [&](const char* s
){debug
= true;});
113 parser
.option('g', 0, 0, [&](const char* s
){histogram
= true;});
114 parser
.option('l', 0, 0, [&](const char* s
){log
= true;});
115 parser
.option('p', 0, 1, [&](const char* s
){nprocs
= atoi(s
);});
116 parser
.option('m', 0, 1, [&](const char* s
){mems
= make_mems(s
);});
117 // I wanted to use --halted, but for some reason that doesn't work.
118 parser
.option('H', 0, 0, [&](const char* s
){halted
= true;});
119 parser
.option(0, "rbb-port", 1, [&](const char* s
){use_rbb
= true; rbb_port
= atoi(s
);});
120 parser
.option(0, "pc", 1, [&](const char* s
){start_pc
= strtoull(s
, 0, 0);});
121 parser
.option(0, "hartids", 1, hartids_parser
);
122 parser
.option(0, "ic", 1, [&](const char* s
){ic
.reset(new icache_sim_t(s
));});
123 parser
.option(0, "dc", 1, [&](const char* s
){dc
.reset(new dcache_sim_t(s
));});
124 parser
.option(0, "l2", 1, [&](const char* s
){l2
.reset(cache_sim_t::construct(s
, "L2$"));});
125 parser
.option(0, "isa", 1, [&](const char* s
){isa
= s
;});
126 parser
.option(0, "extension", 1, [&](const char* s
){extension
= find_extension(s
);});
127 parser
.option(0, "dump-dts", 0, [&](const char *s
){dump_dts
= true;});
128 parser
.option(0, "extlib", 1, [&](const char *s
){
129 void *lib
= dlopen(s
, RTLD_NOW
| RTLD_GLOBAL
);
131 fprintf(stderr
, "Unable to load extlib '%s': %s\n", s
, dlerror());
135 parser
.option(0, "progsize", 1, [&](const char* s
){progsize
= atoi(s
);});
136 parser
.option(0, "debug-sba", 1,
137 [&](const char* s
){max_bus_master_bits
= atoi(s
);});
139 auto argv1
= parser
.parse(argv
);
140 std::vector
<std::string
> htif_args(argv1
, (const char*const*)argv
+ argc
);
142 mems
= make_mems("2048");
144 sim_t
s(isa
, nprocs
, halted
, start_pc
, mems
, htif_args
, std::move(hartids
),
145 progsize
, max_bus_master_bits
);
146 std::unique_ptr
<remote_bitbang_t
> remote_bitbang((remote_bitbang_t
*) NULL
);
147 std::unique_ptr
<jtag_dtm_t
> jtag_dtm(new jtag_dtm_t(&s
.debug_module
));
149 remote_bitbang
.reset(new remote_bitbang_t(rbb_port
, &(*jtag_dtm
)));
150 s
.set_remote_bitbang(&(*remote_bitbang
));
154 printf("%s", s
.get_dts());
161 if (ic
&& l2
) ic
->set_miss_handler(&*l2
);
162 if (dc
&& l2
) dc
->set_miss_handler(&*l2
);
163 for (size_t i
= 0; i
< nprocs
; i
++)
165 if (ic
) s
.get_core(i
)->get_mmu()->register_memtracer(&*ic
);
166 if (dc
) s
.get_core(i
)->get_mmu()->register_memtracer(&*dc
);
167 if (extension
) s
.get_core(i
)->register_extension(extension());
172 s
.set_histogram(histogram
);