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https://github.com/mupen64plus-ae/parallel-rsp.git
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95 lines
1.7 KiB
C++
95 lines
1.7 KiB
C++
#include "debug_jit.hpp"
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#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string>
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using namespace std;
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namespace JIT
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{
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struct DebugBlock::Impl
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{
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Impl() = default;
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Impl(Impl &&) = delete;
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void operator=(Impl &&) = delete;
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~Impl();
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void *dylib = nullptr;
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Func block = nullptr;
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string name, soname;
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bool compile(uint64_t hash, const std::string &source);
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};
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DebugBlock::DebugBlock(const unordered_map<string, uint64_t> &)
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{
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}
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DebugBlock::~DebugBlock()
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{
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}
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DebugBlock::Impl::~Impl()
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{
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if (dylib)
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dlclose(dylib);
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remove(soname.c_str());
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remove(name.c_str());
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}
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bool DebugBlock::compile(uint64_t hash, const std::string &source)
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{
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impl = unique_ptr<Impl>(new Impl);
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bool ret = impl->compile(hash, source);
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if (ret)
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block = impl->block;
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return ret;
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}
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bool DebugBlock::Impl::compile(uint64_t hash, const std::string &source)
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{
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name = "/tmp/";
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name += to_string(hash);
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soname = name;
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name += ".c";
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soname += ".so";
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FILE *file = fopen(name.c_str(), "w");
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if (!file)
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return false;
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fputs(source.c_str(), file);
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fclose(file);
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char command[256];
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if (sizeof(size_t) == 8)
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{
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sprintf(command, "gcc -o %s %s -shared -fpic -O0 -g -std=c99 -Wl,--unresolved-symbols=ignore-all",
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soname.c_str(),
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name.c_str());
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}
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else if (sizeof(size_t) == 4)
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{
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sprintf(command, "gcc -m32 -o %s %s -shared -fpic -O0 -g -std=c99 -Wl,--unresolved-symbols=ignore-all",
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soname.c_str(),
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name.c_str());
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}
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int ret = system(command);
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if (ret != 0)
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return false;
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dylib = dlopen(soname.c_str(), RTLD_LOCAL | RTLD_LAZY);
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if (!dylib)
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return false;
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block = reinterpret_cast<Func>(dlsym(dylib, "block_entry"));
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if (!dylib)
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return false;
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return true;
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}
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} // namespace JIT
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