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New wishbone-jtag bridge

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This commit is contained in:
Joppe Blondel
2026-02-27 15:56:56 +01:00
parent 838204653a
commit 3a9b2acf9e
13 changed files with 1495 additions and 457 deletions
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159
tools/argparse.cpp
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@@ -12,21 +12,41 @@ ArgParser::ArgParser(std::string program_name)
void ArgParser::addString(const std::string &name,
const std::string &default_value,
const std::string &help,
bool required) {
bool required,
const std::string &short_name) {
order_.push_back(name);
meta_[name] = {OptionType::kString, help, required};
meta_[name] = {OptionType::kString, help, required, short_name};
string_values_[name] = default_value;
provided_[name] = false;
if (!short_name.empty()) {
short_to_long_[short_name] = name;
}
}
void ArgParser::addInt(const std::string &name,
int default_value,
const std::string &help,
bool required) {
bool required,
const std::string &short_name) {
order_.push_back(name);
meta_[name] = {OptionType::kInt, help, required};
meta_[name] = {OptionType::kInt, help, required, short_name};
int_values_[name] = default_value;
provided_[name] = false;
if (!short_name.empty()) {
short_to_long_[short_name] = name;
}
}
void ArgParser::addFlag(const std::string &name,
const std::string &help,
const std::string &short_name) {
order_.push_back(name);
meta_[name] = {OptionType::kFlag, help, false, short_name};
flag_values_[name] = false;
provided_[name] = false;
if (!short_name.empty()) {
short_to_long_[short_name] = name;
}
}
bool ArgParser::parse(int argc, char **argv, std::string *error) {
@@ -39,6 +59,79 @@ bool ArgParser::parse(int argc, char **argv, std::string *error) {
return false;
}
if (token.rfind("--", 0) != 0 && token.rfind("-", 0) == 0) {
std::string short_key = token.substr(1);
std::string short_value;
size_t short_eq = short_key.find('=');
if (short_eq != std::string::npos) {
short_value = short_key.substr(short_eq + 1);
short_key = short_key.substr(0, short_eq);
}
auto sk = short_to_long_.find(short_key);
if (sk == short_to_long_.end()) {
if (error) {
*error = "Unknown option: -" + short_key;
}
return false;
}
auto m = meta_.find(sk->second);
if (m == meta_.end()) {
if (error) {
*error = "Unknown option: -" + short_key;
}
return false;
}
if (m->second.type == OptionType::kFlag) {
if (short_eq != std::string::npos) {
if (error) {
*error = "Flag does not take a value: -" + short_key;
}
return false;
}
flag_values_[sk->second] = true;
provided_[sk->second] = true;
} else if (m->second.type == OptionType::kString) {
if (short_eq == std::string::npos) {
if (i + 1 >= argc) {
if (error) {
*error = "Missing value for -" + short_key;
}
return false;
}
short_value = argv[++i];
}
string_values_[sk->second] = short_value;
provided_[sk->second] = true;
} else if (m->second.type == OptionType::kInt) {
long parsed;
if (short_eq == std::string::npos) {
if (i + 1 >= argc) {
if (error) {
*error = "Missing value for -" + short_key;
}
return false;
}
short_value = argv[++i];
}
errno = 0;
char *endp = nullptr;
parsed = std::strtol(short_value.c_str(), &endp, 0);
if (errno != 0 || endp == short_value.c_str() || *endp != '\0' ||
parsed < INT_MIN || parsed > INT_MAX) {
if (error) {
*error = "Invalid integer for -" + short_key + ": " + short_value;
}
return false;
}
int_values_[sk->second] = static_cast<int>(parsed);
provided_[sk->second] = true;
}
continue;
}
if (token.rfind("--", 0) != 0) {
if (error) {
*error = "Unexpected positional argument: " + token;
@@ -51,13 +144,6 @@ bool ArgParser::parse(int argc, char **argv, std::string *error) {
size_t eq = token.find('=');
if (eq == std::string::npos) {
key = token.substr(2);
if (i + 1 >= argc) {
if (error) {
*error = "Missing value for --" + key;
}
return false;
}
value = argv[++i];
} else {
key = token.substr(2, eq - 2);
value = token.substr(eq + 1);
@@ -71,10 +157,32 @@ bool ArgParser::parse(int argc, char **argv, std::string *error) {
return false;
}
if (m->second.type == OptionType::kFlag) {
if (eq != std::string::npos) {
if (error) {
*error = "Flag does not take a value: --" + key;
}
return false;
}
flag_values_[key] = true;
provided_[key] = true;
continue;
}
if (eq == std::string::npos) {
if (i + 1 >= argc) {
if (error) {
*error = "Missing value for --" + key;
}
return false;
}
value = argv[++i];
}
if (m->second.type == OptionType::kString) {
string_values_[key] = value;
provided_[key] = true;
} else {
} else if (m->second.type == OptionType::kInt) {
errno = 0;
char *endp = nullptr;
long parsed = std::strtol(value.c_str(), &endp, 0);
@@ -124,6 +232,14 @@ int ArgParser::getInt(const std::string &name) const {
return it->second;
}
bool ArgParser::getFlag(const std::string &name) const {
auto it = flag_values_.find(name);
if (it == flag_values_.end()) {
return false;
}
return it->second;
}
std::string ArgParser::helpText() const {
std::ostringstream oss;
oss << "Usage: " << program_name_ << " [options]\n\n";
@@ -135,7 +251,16 @@ std::string ArgParser::helpText() const {
continue;
}
oss << " --" << key << " <value>";
oss << " ";
if (!m->second.short_name.empty()) {
oss << "-" << m->second.short_name << ", ";
} else {
oss << " ";
}
oss << "--" << key;
if (m->second.type != OptionType::kFlag) {
oss << " <value>";
}
if (m->second.required) {
oss << " (required)";
}
@@ -147,9 +272,11 @@ std::string ArgParser::helpText() const {
oss << " [default: '" << s->second << "']";
}
} else {
auto iv = int_values_.find(key);
if (iv != int_values_.end()) {
oss << " [default: " << iv->second << "]";
if (m->second.type == OptionType::kInt) {
auto iv = int_values_.find(key);
if (iv != int_values_.end()) {
oss << " [default: " << iv->second << "]";
}
}
}
oss << "\n";