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Added custom rcmd to use with gdb 'monitor' command. Currently 

implemented are 2 commands:

monitor sysc print_time

monitor sysc break 1 us
This commit is contained in:
Eyck Jentzsch 2017-10-09 22:52:19 +02:00
parent 8c32247aa3
commit 026ad213a8
2 changed files with 58 additions and 7 deletions
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4
riscv.sc/incl/sysc/SiFive/core_complex.h
View File

@ -50,6 +50,9 @@ class vm_if;
namespace arch {
template <typename BASE> struct riscv_hart_msu_vp;
}
namespace debugger {
struct target_adapter_if;
}
}
namespace sysc {
@ -120,6 +123,7 @@ protected:
std::unique_ptr<core_wrapper> cpu;
std::unique_ptr<iss::vm_if> vm;
sc_core::sc_time curr_clk;
iss::debugger::target_adapter_if* tgt_adapter;
};
} /* namespace SiFive */

61
riscv.sc/src/sysc/core_complex.cpp
View File

@ -34,17 +34,24 @@
//
////////////////////////////////////////////////////////////////////////////////
#include <iss/arch/riscv_hart_msu_vp.h>
#include <iss/arch/rv32imac.h>
#include <iss/iss.h>
#include <iss/vm_types.h>
#include <sysc/SiFive/core_complex.h>
#include "scc/report.h"
#include "iss/arch/riscv_hart_msu_vp.h"
#include "iss/arch/rv32imac.h"
#include "iss/iss.h"
#include "iss/vm_types.h"
#include "iss/debugger/server.h"
#include "iss/debugger/gdb_session.h"
#include "iss/debugger/target_adapter_if.h"
#include "iss/debugger/encoderdecoder.h"
#include "sysc/SiFive/core_complex.h"
namespace sysc {
namespace SiFive {
namespace {
iss::debugger::encoder_decoder encdec;
}
class core_wrapper : public iss::arch::riscv_hart_msu_vp<iss::arch::rv32imac> {
public:
using core_type = iss::arch::rv32imac;
@ -73,6 +80,36 @@ private:
core_complex *const owner;
};
int cmd_sysc(int argc, char* argv[], iss::debugger::out_func of, iss::debugger::data_func df, iss::debugger::target_adapter_if* tgt_adapter){
if(argc>1) {
if(strcasecmp(argv[1], "print_time")==0){
std::string t = sc_core::sc_time_stamp().to_string();
of(t.c_str());
char buf[64];
encdec.enc_string(t.c_str(), buf, 63);
df(buf);
return iss::Ok;
} else if(strcasecmp(argv[1], "break")==0){
sc_core::sc_time t;
if(argc==4){
t= scc::parse_from_string(argv[2], argv[3]);
} else if(argc==3){
t= scc::parse_from_string(argv[2]);
} else
return iss::Err;
// no check needed as it is only called if debug server is active
tgt_adapter->add_break_condition([t]()->unsigned{
LOG(TRACE)<<"Checking condition at "<<sc_core::sc_time_stamp();
return sc_core::sc_time_stamp()>=t?std::numeric_limits<unsigned>::max():0;
});
return iss::Ok;
}
return iss::Err;
}
return iss::Err;
}
void core_wrapper::notify_phase(exec_phase phase) {
core_type::notify_phase(phase);
if (phase == ISTART) owner->sync();
@ -89,7 +126,8 @@ core_complex::core_complex(sc_core::sc_module_name name)
, NAMED(gdb_server_port, 0, this)
, NAMED(dump_ir, false, this)
, read_lut(tlm_dmi_ext())
, write_lut(tlm_dmi_ext()) {
, write_lut(tlm_dmi_ext())
, tgt_adapter(nullptr){
initiator.register_invalidate_direct_mem_ptr([=](uint64_t start, uint64_t end) -> void {
auto lut_entry = read_lut.getEntry(start);
@ -115,6 +153,15 @@ void core_complex::before_end_of_elaboration() {
cpu = std::make_unique<core_wrapper>(this);
vm = iss::create<iss::arch::rv32imac>(cpu.get(), gdb_server_port.value, dump_ir.value);
vm->setDisassEnabled(enable_disass.value);
auto* srv = iss::debugger::server<iss::debugger::gdb_session>::get();
if(srv) tgt_adapter = srv->get_target();
if(tgt_adapter)
tgt_adapter->add_custom_command({
"sysc",
[this](int argc, char* argv[], iss::debugger::out_func of, iss::debugger::data_func df)-> int {
return cmd_sysc(argc, argv, of, df, tgt_adapter);
},
"SystemC sub-commands: break <time>, print_time"});
}
void core_complex::start_of_simulation() {