syscall_emul.cc File Reference

#include "sim/syscall_emul.hh"
#include <fcntl.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <csignal>
#include <iostream>
#include <mutex>
#include <string>
#include <unordered_map>
#include "base/chunk_generator.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "dev/net/dist_iface.hh"
#include "mem/page_table.hh"
#include "mem/se_translating_port_proxy.hh"
#include "sim/byteswap.hh"
#include "sim/process.hh"
#include "sim/proxy_ptr.hh"
#include "sim/sim_exit.hh"
#include "sim/syscall_debug_macros.hh"
#include "sim/syscall_desc.hh"
#include "sim/system.hh"

Go to the source code of this file.

Namespaces
namespace	gem5
	Copyright (c) 2024 - Pranith Kumar Copyright (c) 2020 Inria All rights reserved.

Functions
void	gem5::warnUnsupportedOS (std::string syscall_name)
SyscallReturn	gem5::unimplementedFunc (SyscallDesc *desc, ThreadContext *tc)
	Handler for unimplemented syscalls that we haven't thought about.
SyscallReturn	gem5::ignoreFunc (SyscallDesc *desc, ThreadContext *tc)
	Handler for unimplemented syscalls that we never intend to implement (signal handling, etc.) and should not affect the correct behavior of the program.
SyscallReturn	gem5::ignoreWarnOnceFunc (SyscallDesc *desc, ThreadContext *tc)
	Like above, but only prints a warning once per syscall desc it's used with.
static void	gem5::exitFutexWake (ThreadContext *tc, VPtr<> addr, uint64_t tgid)
static SyscallReturn	gem5::exitImpl (SyscallDesc *desc, ThreadContext *tc, bool group, int status)
SyscallReturn	gem5::exitFunc (SyscallDesc *desc, ThreadContext *tc, int status)
	Target exit() handler: terminate current context.
SyscallReturn	gem5::exitGroupFunc (SyscallDesc *desc, ThreadContext *tc, int status)
	Target exit_group() handler: terminate simulation. (exit all threads)
SyscallReturn	gem5::getpagesizeFunc (SyscallDesc *desc, ThreadContext *tc)
	Target getpagesize() handler.
SyscallReturn	gem5::brkFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> new_brk)
	Target brk() handler: set brk address.
SyscallReturn	gem5::setTidAddressFunc (SyscallDesc *desc, ThreadContext *tc, uint64_t tidPtr)
	Target set_tid_address() handler.
SyscallReturn	gem5::closeFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd)
	Target close() handler.
SyscallReturn	gem5::lseekFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, uint64_t offs, int whence)
	Target lseek() handler.
SyscallReturn	gem5::_llseekFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, uint64_t offset_high, uint32_t offset_low, VPtr<> result_ptr, int whence)
	Target _llseek() handler.
SyscallReturn	gem5::gethostnameFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> buf_ptr, int name_len)
	Target gethostname() handler.
SyscallReturn	gem5::getcwdFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> buf_ptr, unsigned long size)
	Target getcwd() handler.
SyscallReturn	gem5::unlinkFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname)
	Target unlink() handler.
SyscallReturn	gem5::unlinkImpl (SyscallDesc *desc, ThreadContext *tc, std::string path)
SyscallReturn	gem5::linkFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, VPtr<> new_pathname)
	Target link() handler.
SyscallReturn	gem5::symlinkFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, VPtr<> new_pathname)
	Target symlink() handler.
SyscallReturn	gem5::mkdirFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, mode_t mode)
	Target mkdir() handler.
SyscallReturn	gem5::mkdirImpl (SyscallDesc *desc, ThreadContext *tc, std::string path, mode_t mode)
SyscallReturn	gem5::renameFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> oldpath, VPtr<> newpath)
	Target rename() handler.
SyscallReturn	gem5::renameImpl (SyscallDesc *desc, ThreadContext *tc, std::string old_name, std::string new_name)
SyscallReturn	gem5::truncate64Func (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, int64_t length)
	Target truncate64() handler.
SyscallReturn	gem5::ftruncate64Func (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int64_t length)
	Target ftruncate64() handler.
SyscallReturn	gem5::umaskFunc (SyscallDesc *desc, ThreadContext *tc)
	Target umask() handler.
SyscallReturn	gem5::chownFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, uint32_t owner, uint32_t group)
	Target chown() handler.
SyscallReturn	gem5::chownImpl (SyscallDesc *desc, ThreadContext *tc, std::string path, uint32_t owner, uint32_t group)
SyscallReturn	gem5::fchownFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, uint32_t owner, uint32_t group)
	Target fchown() handler.
SyscallReturn	gem5::dupFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd)
	FIXME: The file description is not shared among file descriptors created with dup.
SyscallReturn	gem5::dup2Func (SyscallDesc *desc, ThreadContext *tc, int old_tgt_fd, int new_tgt_fd)
	Target dup2() handler.
SyscallReturn	gem5::fcntlFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int cmd, guest_abi::VarArgs< int > varargs)
	Target fcntl() handler.
SyscallReturn	gem5::fcntl64Func (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int cmd)
	Target fcntl64() handler.
SyscallReturn	gem5::pipePseudoFunc (SyscallDesc *desc, ThreadContext *tc)
	Pseudo Funcs - These functions use a different return convension, returning a second value in a register other than the normal return register.
SyscallReturn	gem5::pipeFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> tgt_addr)
	Target pipe() handler.
SyscallReturn	gem5::pipe2Func (SyscallDesc *desc, ThreadContext *tc, VPtr<> tgt_addr, int flags)
	Target pipe() handler.
SyscallReturn	gem5::getpgrpFunc (SyscallDesc *desc, ThreadContext *tc)
	Target getpgrpFunc() handler.
SyscallReturn	gem5::setpgidFunc (SyscallDesc *desc, ThreadContext *tc, int pid, int pgid)
	Target setpgid() handler.
SyscallReturn	gem5::getpidFunc (SyscallDesc *desc, ThreadContext *tc)
	Target getpid() handler.
SyscallReturn	gem5::gettidFunc (SyscallDesc *desc, ThreadContext *tc)
	Target gettid() handler.
SyscallReturn	gem5::getppidFunc (SyscallDesc *desc, ThreadContext *tc)
	Target getppid() handler.
SyscallReturn	gem5::getuidFunc (SyscallDesc *desc, ThreadContext *tc)
SyscallReturn	gem5::geteuidFunc (SyscallDesc *desc, ThreadContext *tc)
	Target geteuid() handler.
SyscallReturn	gem5::getgidFunc (SyscallDesc *desc, ThreadContext *tc)
	Target getgid() handler.
SyscallReturn	gem5::getegidFunc (SyscallDesc *desc, ThreadContext *tc)
	Target getegid() handler.
SyscallReturn	gem5::accessFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, mode_t mode)
	Target access() handler.
SyscallReturn	gem5::accessImpl (SyscallDesc *desc, ThreadContext *tc, std::string path, mode_t mode)
SyscallReturn	gem5::mknodFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname, mode_t mode, dev_t dev)
	Target mknod() handler.
SyscallReturn	gem5::mknodImpl (SyscallDesc *desc, ThreadContext *tc, std::string path, mode_t mode, dev_t dev)
SyscallReturn	gem5::chdirFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname)
	Target chdir() handler.
SyscallReturn	gem5::rmdirFunc (SyscallDesc *desc, ThreadContext *tc, VPtr<> pathname)
SyscallReturn	gem5::rmdirImpl (SyscallDesc *desc, ThreadContext *tc, std::string path)
SyscallReturn	gem5::shutdownFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int how)
	Target shutdown() handler.
SyscallReturn	gem5::bindFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, VPtr<> buf_ptr, int addrlen)
SyscallReturn	gem5::listenFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int backlog)
SyscallReturn	gem5::connectFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, VPtr<> buf_ptr, int addrlen)
SyscallReturn	gem5::recvmsgFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, VPtr<> msgPtr, int flags)
SyscallReturn	gem5::sendmsgFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, VPtr<> msgPtr, int flags)
SyscallReturn	gem5::getsockoptFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int level, int optname, VPtr<> valPtr, VPtr<> lenPtr)
SyscallReturn	gem5::getsocknameFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, VPtr<> addrPtr, VPtr<> lenPtr)
SyscallReturn	gem5::getpeernameFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, VPtr<> sockAddrPtr, VPtr<> addrlenPtr)
SyscallReturn	gem5::setsockoptFunc (SyscallDesc *desc, ThreadContext *tc, int tgt_fd, int level, int optname, VPtr<> valPtr, socklen_t len)
SyscallReturn	gem5::getcpuFunc (SyscallDesc *desc, ThreadContext *tc, VPtr< uint32_t > cpu, VPtr< uint32_t > node, VPtr< uint32_t > tcache)

Variables
const char *	gem5::hostname = "m5.eecs.umich.edu"