fix left-over from layout refactoring
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@ -1,5 +1,5 @@
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#include <iss/arch_if.h>
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#include "pctrace.h"
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#include <iss/plugin/pctrace.h>
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#include <util/logging.h>
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#include <util/ities.h>
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#include <rapidjson/document.h>
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@ -157,8 +157,9 @@ void cov::callback(instr_info_t iinfo, const exec_info& einfo) {
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size_t id = iinfo.instr_id;
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auto entry = delays[id];
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auto instr = instr_if->get_instr_word();
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auto call = (id==2 || id==3) && bit_sub<7,5>(instr)!=0;
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auto call = id==65 || id ==86 || ((id==2 || id==3) && bit_sub<7,5>(instr)!=0) ;//not taking care of tail calls (jalr with loading x6)
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bool taken = einfo.branch_taken;
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bool compressed = (instr&0x3)!=0x3;
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if (einfo.branch_taken) {
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delay = entry.taken;
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if(entry.taken > 1)
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@ -169,10 +170,10 @@ void cov::callback(instr_info_t iinfo, const exec_info& einfo) {
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instr_if->set_curr_instr_cycles(entry.not_taken);
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}
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#ifndef WITH_LZ4
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output<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<< "\n";
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output<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<<","<<(compressed?2:4) <<"\n";
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#else
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auto rdbuf=ostr.rdbuf();
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ostr<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<< "\n";
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ostr<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<<","<<(compressed?2:4) <<"\n";
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#endif
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}
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}
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@ -1,180 +0,0 @@
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#include <iss/arch_if.h>
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#include <iss/plugin/pctrace.h>
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#include <util/logging.h>
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#include <util/ities.h>
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#include <rapidjson/document.h>
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#include <rapidjson/istreamwrapper.h>
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#include "rapidjson/writer.h"
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#include "rapidjson/stringbuffer.h"
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#include <rapidjson/ostreamwrapper.h>
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#include <rapidjson/error/en.h>
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#include <fstream>
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#include <iostream>
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#ifdef WITH_LZ4
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#include <lz4frame.h>
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#endif
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namespace iss {
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namespace plugin {
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using namespace rapidjson;
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using namespace std;
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#ifdef WITH_LZ4
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class lz4compress_steambuf: public std::streambuf {
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public:
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lz4compress_steambuf(const lz4compress_steambuf&) = delete;
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lz4compress_steambuf& operator=(const lz4compress_steambuf&) = delete;
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lz4compress_steambuf(std::ostream &sink, size_t buf_size)
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: sink(sink)
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, src_buf(buf_size)
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, dest_buf(LZ4F_compressBound(buf_size, nullptr))
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{
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auto errCode = LZ4F_createCompressionContext(&ctx, LZ4F_VERSION);
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if (LZ4F_isError(errCode) != 0)
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throw std::runtime_error(std::string("Failed to create LZ4 context: ") + LZ4F_getErrorName(errCode));
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size_t ret = LZ4F_compressBegin(ctx, &dest_buf.front(), dest_buf.capacity(), nullptr);
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if (LZ4F_isError(ret) != 0)
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throw std::runtime_error(std::string("Failed to start LZ4 compression: ") + LZ4F_getErrorName(ret));
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setp(src_buf.data(), src_buf.data() + src_buf.size() - 1);
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sink.write(dest_buf.data(), ret);
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}
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~lz4compress_steambuf() {
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close();
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}
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void close() {
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if (closed)
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return;
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sync();
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auto ret = LZ4F_compressEnd(ctx, dest_buf.data(), dest_buf.capacity(), nullptr);
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if (LZ4F_isError(ret) != 0)
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throw std::runtime_error(std::string("Failed to finish LZ4 compression: ") + LZ4F_getErrorName(ret));
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sink.write(dest_buf.data(), ret);
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LZ4F_freeCompressionContext(ctx);
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closed = true;
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}
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private:
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int_type overflow(int_type ch) override {
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compress_and_write();
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*pptr() = static_cast<char_type>(ch);
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pbump(1);
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return ch;
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}
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int_type sync() override {
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compress_and_write();
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return 0;
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}
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void compress_and_write() {
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if (closed)
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throw std::runtime_error("Cannot write to closed stream");
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if(auto orig_size = pptr() - pbase()){
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auto ret = LZ4F_compressUpdate(ctx, dest_buf.data(), dest_buf.capacity(), pbase(), orig_size, nullptr);
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if (LZ4F_isError(ret) != 0)
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throw std::runtime_error(std::string("LZ4 compression failed: ") + LZ4F_getErrorName(ret));
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if(ret) sink.write(dest_buf.data(), ret);
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pbump(-orig_size);
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}
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}
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std::ostream &sink;
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std::vector<char> src_buf;
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std::vector<char> dest_buf;
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LZ4F_compressionContext_t ctx{ nullptr };
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bool closed{ false };
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};
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#endif
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cov::cov(std::string const &filename)
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: instr_if(nullptr)
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, filename(filename)
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, output("output.trc")
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#ifdef WITH_LZ4
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, strbuf(new lz4compress_steambuf(output, 4096))
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, ostr(strbuf.get())
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#endif
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{ }
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cov::~cov() { }
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bool cov::registration(const char *const version, vm_if& vm) {
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instr_if = vm.get_arch()->get_instrumentation_if();
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if(!instr_if) return false;
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const string core_name = instr_if->core_type_name();
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if (filename.length() > 0) {
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ifstream is(filename);
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if (is.is_open()) {
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try {
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IStreamWrapper isw(is);
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Document d;
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ParseResult ok = d.ParseStream(isw);
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if(ok) {
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Value& val = d[core_name.c_str()];
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if(val.IsArray()){
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delays.reserve(val.Size());
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for (auto it = val.Begin(); it != val.End(); ++it) {
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auto& name = (*it)["name"];
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auto& size = (*it)["size"];
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auto& delay = (*it)["delay"];
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auto& branch = (*it)["branch"];
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if(delay.IsArray()) {
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auto dt = delay[0].Get<unsigned>();
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auto dnt = delay[1].Get<unsigned>();
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delays.push_back(instr_desc{size.Get<unsigned>(), dt, dnt, branch.Get<bool>()});
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} else if(delay.Is<unsigned>()) {
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auto d = delay.Get<unsigned>();
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delays.push_back(instr_desc{size.Get<unsigned>(), d, d, branch.Get<bool>()});
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} else
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throw runtime_error("JSON parse error");
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}
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} else {
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LOG(ERR)<<"plugin cycle_estimate: could not find an entry for "<<core_name<<" in JSON file"<<endl;
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return false;
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}
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} else {
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LOG(ERR)<<"plugin cycle_estimate: could not parse in JSON file at "<< ok.Offset()<<": "<<GetParseError_En(ok.Code())<<endl;
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return false;
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}
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} catch (runtime_error &e) {
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LOG(ERR) << "Could not parse input file " << filename << ", reason: " << e.what();
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return false;
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}
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} else {
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LOG(ERR) << "Could not open input file " << filename;
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return false;
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}
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}
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return true;
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}
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void cov::callback(instr_info_t iinfo, const exec_info& einfo) {
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auto delay = 0;
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size_t id = iinfo.instr_id;
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auto entry = delays[id];
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auto instr = instr_if->get_instr_word();
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auto call = id==65 || id ==86 || ((id==2 || id==3) && bit_sub<7,5>(instr)!=0) ;//not taking care of tail calls (jalr with loading x6)
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bool taken = einfo.branch_taken;
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bool compressed = (instr&0x3)!=0x3;
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if (einfo.branch_taken) {
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delay = entry.taken;
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if(entry.taken > 1)
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instr_if->set_curr_instr_cycles(entry.taken);
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} else {
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delay = entry.not_taken;
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if (entry.not_taken > 1)
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instr_if->set_curr_instr_cycles(entry.not_taken);
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}
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#ifndef WITH_LZ4
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output<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<<","<<(compressed?2:4) <<"\n";
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#else
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auto rdbuf=ostr.rdbuf();
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ostr<<std::hex <<"0x" << instr_if->get_pc() <<"," << delay <<"," << call<<","<<(compressed?2:4) <<"\n";
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#endif
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}
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}
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}
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