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ircd::mods: Add cxx abi name demangling.

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This commit is contained in:
Jason Volk 2017-08-28 17:05:05 -07:00
parent f7c1e43ae9
commit 28cf226c3a
2 changed files with 28 additions and 0 deletions
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4
include/ircd/mods.h
View file

@ -129,6 +129,9 @@ struct import_shared
import_shared(const std::string &modname, const std::string &symname);
};
std::string demangle(const std::string &symbol);
std::string postfixed(const std::string &name);
std::string unpostfixed(const std::string &name);
@ -158,6 +161,7 @@ namespace ircd {
using mods::module; // Bring struct module into main ircd::
using mods::import;
using mods::import_shared;
using mods::demangle;
} // namespace ircd

24
ircd/mods.cc
View file

@ -24,6 +24,7 @@
* USA
*/
#include <cxxabi.h>
#include <boost/filesystem.hpp>
#include <boost/dll.hpp>
@ -582,6 +583,29 @@ ircd::mods::prefix_if_relative(const filesystem::path &path)
return path.is_relative()? (modroot / path) : path;
}
std::string
ircd::mods::demangle(const std::string &symbol)
{
size_t len;
int status;
const custom_ptr<char> buf
{
abi::__cxa_demangle(symbol.c_str(), nullptr, &len, &status),
std::free
};
switch(status)
{
case 0: break;
case -1: throw error("Demangle failed -1: memory allocation failure");
case -2: throw error("Demangle failed -2: mangled name is not valid");
case -3: throw error("Demangle failed -3: invalid argument");
default: throw error("Demangle failed %d: unknown error", status);
}
return { buf.get(), len };
}
///////////////////////////////////////////////////////////////////////////////
//
// mod (internal)