mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-07 00:00:17 +02:00
Ryan Houdek
a5046e92cd
In the case of running inside of a container then we need to redirect where we look for configuration. Currently we only care about pressure vessel so we just redirect some options to check inside of `/run/host/` This will resolve an issue where installed thunks wouldn't be found.
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
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$info$
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tags: Bin|FEXBash
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desc: Launches bash under FEX and passes arguments via -c to it
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$end_info$
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*/
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#include "ConfigDefines.h"
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#include "Common/ArgumentLoader.h"
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#include "Common/RootFSSetup.h"
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#include <FEXCore/Config/Config.h>
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#include <FEXCore/Utils/LogManager.h>
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#include <filesystem>
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#include <iterator>
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#include <memory>
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#include <stddef.h>
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#include <string>
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#include <unistd.h>
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#include <vector>
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int main(int argc, char **argv, char **const envp) {
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FEXCore::Config::Initialize();
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FEXCore::Config::AddLayer(FEXCore::Config::CreateMainLayer());
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FEX::ArgLoader::LoadWithoutArguments(argc, argv);
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FEXCore::Config::AddLayer(FEXCore::Config::CreateEnvironmentLayer(envp));
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FEXCore::Config::Load();
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// Reload the meta layer
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FEXCore::Config::ReloadMetaLayer();
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auto Args = FEX::ArgLoader::Get();
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// Ensure RootFS is setup before config options try to pull CONFIG_ROOTFS
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if (!FEX::RootFS::Setup(envp)) {
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fprintf(stderr, "RootFS configuration failed.");
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return -1;
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}
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FEX_CONFIG_OPT(RootFSPath, ROOTFS);
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std::vector<const char*> Argv;
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std::string BinShPath = RootFSPath() + "/bin/sh";
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std::string BinBashPath = RootFSPath() + "/bin/bash";
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std::string FEXInterpreterPath = std::filesystem::path(argv[0]).parent_path().string() + "FEXInterpreter";
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// Check if a local FEXInterpreter to FEXBash exists
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// If it does then it takes priority over the installed one
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if (!std::filesystem::exists(FEXInterpreterPath)) {
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FEXInterpreterPath = FEXCore::Config::FindContainerPrefix() + FEXINTERPRETER_PATH;
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}
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const char *FEXArgs[] = {
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FEXInterpreterPath.c_str(),
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Args.empty() ? BinBashPath.c_str() : BinShPath.c_str(),
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"-c",
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};
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// Remove -c argument if arguments are empty
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// Lets us start an emulated bash instance
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const size_t FEXArgsCount = std::size(FEXArgs) - (Args.empty() ? 1 : 0);
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Argv.resize(Args.size() + FEXArgsCount + 1);
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// Pass in the FEXInterpreter arguments
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for (size_t i = 0; i < FEXArgsCount; ++i) {
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Argv[i] = FEXArgs[i];
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}
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// Bring in passed in arguments
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for (size_t i = 0; i < Args.size(); ++i) {
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Argv[i + FEXArgsCount] = Args[i].c_str();
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}
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Argv[Argv.size() - 1] = nullptr;
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return execve(Argv[0], const_cast<char *const*>(&Argv.at(0)), envp);
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}
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