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Improvements in "cover" command

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This commit is contained in:
Clifford Wolf 2014-07-25 12:04:40 +02:00
parent 6789e3002a
commit 91bf0c90c8
1 changed files with 37 additions and 11 deletions
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48
passes/cmds/cover.cc
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@ -17,6 +17,10 @@
* *
*/ */
#include <sys/types.h>
#include <unistd.h>
#include <fnmatch.h>
#include "kernel/register.h" #include "kernel/register.h"
#include "kernel/rtlil.h" #include "kernel/rtlil.h"
#include "kernel/log.h" #include "kernel/log.h"
@ -27,7 +31,7 @@ struct CoverPass : public Pass {
{ {
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n"); log("\n");
log(" cover [-q] [-o logfile|-a logfile]\n"); log(" cover [options] [pattern]\n");
log("\n"); log("\n");
log("Print the code coverage counters collected using the cover() macro in the Yosys\n"); log("Print the code coverage counters collected using the cover() macro in the Yosys\n");
log("C++ code. This is useful to figure out what parts of Yosys are utilized by a\n"); log("C++ code. This is useful to figure out what parts of Yosys are utilized by a\n");
@ -36,22 +40,28 @@ struct CoverPass : public Pass {
log(" -q\n"); log(" -q\n");
log(" Do not print output to the normal destination (console and/or log file)\n"); log(" Do not print output to the normal destination (console and/or log file)\n");
log("\n"); log("\n");
log(" -o logfile\n"); log(" -o file\n");
log(" Write output to this file, truncate if exists.\n"); log(" Write output to this file, truncate if exists.\n");
log("\n"); log("\n");
log(" -a logfile\n"); log(" -a file\n");
log(" Write output to this file, append if exists.\n"); log(" Write output to this file, append if exists.\n");
log("\n"); log("\n");
log(" -d dir\n");
log(" Write output to a newly created file in the specified directory.\n");
log("\n"); log("\n");
log("It is also possible to instruct Yosys to print the coverage counters to a file\n"); log("When one or more pattern (shell wildcards) are specified, then only counters\n");
log("using environment variables.\n"); log("matching at least one pattern are printed.\n");
log("\n"); log("\n");
log(" YOSYS_COVER_DIR=\"{dir-name}\" yosys {args}n"); log("\n");
log("It is also possible to instruct Yosys to print the coverage counters on program\n");
log("exit to a file using environment variables:\n");
log("\n");
log(" YOSYS_COVER_DIR=\"{dir-name}\" yosys {args}\n");
log("\n"); log("\n");
log(" This will create a file (with an auto-generated name) in this\n"); log(" This will create a file (with an auto-generated name) in this\n");
log(" directory and wire the coverage counters to it.\n"); log(" directory and write the coverage counters to it.\n");
log("\n"); log("\n");
log(" YOSYS_COVER_FILE=\"{file-name}\" yosys {args}n"); log(" YOSYS_COVER_FILE=\"{file-name}\" yosys {args}\n");
log("\n"); log("\n");
log(" This will append the coverage counters to the specified file.\n"); log(" This will append the coverage counters to the specified file.\n");
log("\n"); log("\n");
@ -65,6 +75,7 @@ struct CoverPass : public Pass {
virtual void execute(std::vector<std::string> args, RTLIL::Design *design) virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{ {
std::vector<FILE*> out_files; std::vector<FILE*> out_files;
std::vector<std::string> patterns;
bool do_log = true; bool do_log = true;
size_t argidx; size_t argidx;
@ -74,9 +85,15 @@ struct CoverPass : public Pass {
do_log = false; do_log = false;
continue; continue;
} }
if ((args[argidx] == "-o" || args[argidx] == "-a") && argidx+1 < args.size()) { if ((args[argidx] == "-o" || args[argidx] == "-a" || args[argidx] == "-d") && argidx+1 < args.size()) {
const char *open_mode = args[argidx] == "-o" ? "w" : "a+"; const char *open_mode = args[argidx] == "-a" ? "a+" : "w";
FILE *f = fopen(args[++argidx].c_str(), open_mode); std::string filename = args[++argidx];
if (args[argidx-1] == "-d") {
char filename_buffer[4096];
snprintf(filename_buffer, 4096, "%s/yosys_cover_%d_XXXXXX.txt", filename.c_str(), getpid());
filename = mkstemps(filename_buffer, 4);
}
FILE *f = fopen(filename.c_str(), open_mode);
if (f == NULL) { if (f == NULL) {
for (auto f : out_files) for (auto f : out_files)
fclose(f); fclose(f);
@ -87,6 +104,8 @@ struct CoverPass : public Pass {
} }
break; break;
} }
while (argidx < args.size() && args[argidx].substr(0, 1) != "-")
patterns.push_back(args[argidx++]);
extra_args(args, argidx, design); extra_args(args, argidx, design);
if (do_log) { if (do_log) {
@ -96,6 +115,13 @@ struct CoverPass : public Pass {
#ifndef NDEBUG #ifndef NDEBUG
for (auto &it : get_coverage_data()) { for (auto &it : get_coverage_data()) {
if (!patterns.empty()) {
for (auto &p : patterns)
if (!fnmatch(p.c_str(), it.first.c_str(), 0))
goto pattern_match;
continue;
}
pattern_match:
for (auto f : out_files) for (auto f : out_files)
fprintf(f, "%-60s %10d %s\n", it.second.first.c_str(), it.second.second, it.first.c_str()); fprintf(f, "%-60s %10d %s\n", it.second.first.c_str(), it.second.second, it.first.c_str());
if (do_log) if (do_log)