#include "sim/syscall_emul.hh"
#include <fcntl.h>
#include <unistd.h>
#include <csignal>
#include <iostream>
#include <string>
#include "arch/utility.hh"
#include "base/chunk_generator.hh"
#include "base/trace.hh"
#include "config/the_isa.hh"
#include "cpu/thread_context.hh"
#include "mem/page_table.hh"
#include "sim/process.hh"
#include "sim/sim_exit.hh"
#include "sim/syscall_debug_macros.hh"
#include "sim/syscall_desc.hh"
#include "sim/system.hh"

Functions
SyscallReturn	unimplementedFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Handler for unimplemented syscalls that we haven't thought about. More...

SyscallReturn	ignoreFunc (SyscallDesc desc, int callnum, Process process, 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. More...

static void	exitFutexWake (ThreadContext *tc, Addr addr, uint64_t tgid)

static SyscallReturn	exitImpl (SyscallDesc desc, int callnum, Process p, ThreadContext *tc, bool group)

SyscallReturn	exitFunc (SyscallDesc desc, int callnum, Process p, ThreadContext *tc)
	Target exit() handler: terminate current context. More...

SyscallReturn	exitGroupFunc (SyscallDesc desc, int callnum, Process p, ThreadContext *tc)
	Target exit_group() handler: terminate simulation. (exit all threads) More...

SyscallReturn	getpagesizeFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target getpagesize() handler. More...

SyscallReturn	brkFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target brk() handler: set brk address. More...

SyscallReturn	setTidAddressFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target set_tid_address() handler. More...

SyscallReturn	closeFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target close() handler. More...

SyscallReturn	readFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)

SyscallReturn	writeFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target write() handler. More...

SyscallReturn	lseekFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target lseek() handler. More...

SyscallReturn	_llseekFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target _llseek() handler. More...

SyscallReturn	munmapFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target munmap() handler. More...

SyscallReturn	gethostnameFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target gethostname() handler. More...

SyscallReturn	getcwdFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target getcwd() handler. More...

SyscallReturn	readlinkFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)

SyscallReturn	readlinkFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc, int index)
	Target readlink() handler. More...

SyscallReturn	unlinkFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)

SyscallReturn	unlinkHelper (SyscallDesc desc, int num, Process p, ThreadContext *tc, int index)
	Target unlink() handler. More...

SyscallReturn	mkdirFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target mkdir() handler. More...

SyscallReturn	renameFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target rename() handler. More...

SyscallReturn	truncateFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target truncate() handler. More...

SyscallReturn	ftruncateFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target ftruncate() handler. More...

SyscallReturn	truncate64Func (SyscallDesc desc, int num, Process process, ThreadContext *tc)
	Target truncate64() handler. More...

SyscallReturn	ftruncate64Func (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target ftruncate64() handler. More...

SyscallReturn	umaskFunc (SyscallDesc desc, int num, Process process, ThreadContext *tc)
	Target umask() handler. More...

SyscallReturn	chownFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target chown() handler. More...

SyscallReturn	fchownFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target fchown() handler. More...

SyscallReturn	dupFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	FIXME: The file description is not shared among file descriptors created with dup. More...

SyscallReturn	dup2Func (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target dup2() handler. More...

SyscallReturn	fcntlFunc (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target fcntl() handler. More...

SyscallReturn	fcntl64Func (SyscallDesc desc, int num, Process p, ThreadContext *tc)
	Target fcntl64() handler. More...

SyscallReturn	pipeImpl (SyscallDesc desc, int callnum, Process p, ThreadContext *tc, bool pseudoPipe)
	Internal pipe() handler. More...

SyscallReturn	pipePseudoFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Pseudo Funcs - These functions use a different return convension, returning a second value in a register other than the normal return register. More...

SyscallReturn	pipeFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target pipe() handler. More...

SyscallReturn	setpgidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target setpgid() handler. More...

SyscallReturn	getpidPseudoFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getpidPseudo() handler. More...

SyscallReturn	getuidPseudoFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getuidPseudo() handler. More...

SyscallReturn	getgidPseudoFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getgidPseudo() handler. More...

SyscallReturn	setuidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target setuid() handler. More...

SyscallReturn	getpidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getpid() handler. More...

SyscallReturn	gettidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target gettid() handler. More...

SyscallReturn	getppidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getppid() handler. More...

SyscallReturn	getuidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getuid() handler. More...

SyscallReturn	geteuidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target geteuid() handler. More...

SyscallReturn	getgidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getgid() handler. More...

SyscallReturn	getegidFunc (SyscallDesc desc, int callnum, Process process, ThreadContext *tc)
	Target getegid() handler. More...

SyscallReturn	fallocateFunc (SyscallDesc desc, int callnum, Process p, ThreadContext *tc)

SyscallReturn	accessFunc (SyscallDesc desc, int callnum, Process p, ThreadContext *tc, int index)

SyscallReturn	accessFunc (SyscallDesc desc, int callnum, Process p, ThreadContext *tc)
	Target access() handler. More...

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

Function Documentation

SyscallReturn _llseekFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target _llseek() handler.

Definition at line 331 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), Process::fds, ThreadContext::getMemProxy(), Process::getSyscallArg(), BigEndianGuest::htog(), MipsISA::index, and ArmISA::offset.

SyscallReturn accessFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc,
		int	index
	)

Definition at line 1032 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), ArmISA::mode, and SETranslatingPortProxy::tryReadString().

Referenced by accessFunc().

SyscallReturn accessFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc
	)

Target access() handler.

Definition at line 1049 of file syscall_emul.cc.

References accessFunc().

Referenced by faccessatFunc().

SyscallReturn brkFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target brk() handler: set brk address.

Definition at line 197 of file syscall_emul.cc.

References Process::allocateMem(), ChunkGenerator::done(), DPRINTF_SYSCALL, ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, SETranslatingPortProxy::memsetBlob(), Process::memState, AlphaISA::PageBytes, Process::pTable, roundDown(), roundUp(), and PageTableBase::translate().

SyscallReturn chownFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target chown() handler.

Definition at line 637 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, and SETranslatingPortProxy::tryReadString().

SyscallReturn closeFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target close() handler.

Definition at line 256 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), and MipsISA::index.

SyscallReturn dup2Func	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target dup2() handler.

We need a valid host file descriptor number to be able to pass into the second parameter for dup2 (newfd), but we don't know what the viable numbers are; we execute the open call to retrieve one.

Definition at line 707 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), and MipsISA::index.

SyscallReturn dupFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

FIXME: The file description is not shared among file descriptors created with dup.

Target dup() handler.

Really, it's difficult to maintain fields like file offset or flags since an update to such a field won't be reflected in the metadata for the fd entries that we maintain for checkpoint restoration.

Definition at line 686 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), and MipsISA::index.

SyscallReturn exitFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc
	)

Target exit() handler: terminate current context.

Definition at line 178 of file syscall_emul.cc.

References exitImpl().

static void exitFutexWake	(	ThreadContext *	tc,
		Addr	addr,
		uint64_t	tgid
	)

static

Definition at line 79 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), System::futexMap, ThreadContext::getMemProxy(), ThreadContext::getSystemPtr(), and FutexMap::wakeup().

Referenced by exitImpl().

SyscallReturn exitGroupFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc
	)

Target exit_group() handler: terminate simulation. (exit all threads)

Definition at line 184 of file syscall_emul.cc.

References exitImpl().

Referenced by tgkillFunc().

static SyscallReturn exitImpl	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc,
		bool	group
	)

static

Threads in a thread group require special handing. For instance, we send the SIGCHLD signal so that it appears that it came from the head of the group. We also only delete file descriptors if we are the last thread in the thread group.

Check if we share thread group with the pointer; this denotes that we are not the last thread active in the thread group. Note that setting this to false also prevents further iterations of the loop.

A corner case exists which involves execve(). After execve(), the execve will enable SIGCHLD in the process. The problem occurs when the exiting process is the root process in the system; there is no parent to receive the signal. We obviate this problem by setting the root process' ppid to zero in the Python configuration files. We really should handle the root/execve specific case more gracefully.

Run though FD array of the exiting process and close all file descriptors except for the standard file descriptors. (The standard file descriptors are shared with gem5.)

Definition at line 93 of file syscall_emul.cc.

References Process::childClearTID, exitFutexWake(), Process::exitGroup, exitSimLoop(), Process::fds, Process::getSyscallArg(), ThreadContext::getSystemPtr(), ThreadContext::halt(), ThreadContext::Halted, ArmISA::i, MipsISA::index, System::numContexts(), Process::pid(), Process::ppid(), Process::sigchld, System::signalList, ArmISA::status, ArmISA::system, System::systemList, Process::tgid(), and System::threadContexts.

Referenced by exitFunc(), and exitGroupFunc().

SyscallReturn fallocateFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc
	)

Definition at line 1008 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), MipsISA::index, ArmISA::len, ArmISA::mode, ArmISA::offset, and warn.

SyscallReturn fchownFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target fchown() handler.

Definition at line 659 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), and MipsISA::index.

SyscallReturn fcntl64Func	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target fcntl64() handler.

Definition at line 782 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), MipsISA::index, and warn.

SyscallReturn fcntlFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target fcntl() handler.

Definition at line 738 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), MipsISA::index, and warn.

SyscallReturn ftruncate64Func	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target ftruncate64() handler.

Definition at line 606 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), MipsISA::index, and length.

SyscallReturn ftruncateFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target ftruncate() handler.

Definition at line 567 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), MipsISA::index, and length.

SyscallReturn getcwdFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target getcwd() handler.

Definition at line 388 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), Process::getcwd(), ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, and X86ISA::size().

SyscallReturn getegidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getegid() handler.

Definition at line 1001 of file syscall_emul.cc.

References Process::egid().

SyscallReturn geteuidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target geteuid() handler.

Definition at line 987 of file syscall_emul.cc.

References Process::euid().

SyscallReturn getgidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getgid() handler.

Definition at line 994 of file syscall_emul.cc.

References Process::gid().

SyscallReturn getgidPseudoFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getgidPseudo() handler.

Definition at line 939 of file syscall_emul.cc.

References Process::egid(), Process::gid(), ThreadContext::setIntReg(), and AlphaISA::SyscallPseudoReturnReg.

SyscallReturn gethostnameFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target gethostname() handler.

Definition at line 373 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), ThreadContext::getMemProxy(), Process::getSyscallArg(), hostname, MipsISA::index, and name().

SyscallReturn getpagesizeFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target getpagesize() handler.

Definition at line 190 of file syscall_emul.cc.

References AlphaISA::PageBytes.

SyscallReturn getpidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getpid() handler.

Definition at line 959 of file syscall_emul.cc.

References Process::tgid().

SyscallReturn getpidPseudoFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getpidPseudo() handler.

Definition at line 913 of file syscall_emul.cc.

References Process::pid(), Process::ppid(), ThreadContext::setIntReg(), and AlphaISA::SyscallPseudoReturnReg.

SyscallReturn getppidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getppid() handler.

Definition at line 973 of file syscall_emul.cc.

References Process::ppid().

SyscallReturn gettidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target gettid() handler.

Definition at line 966 of file syscall_emul.cc.

References Process::pid().

SyscallReturn getuidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getuid() handler.

Definition at line 980 of file syscall_emul.cc.

References Process::uid().

SyscallReturn getuidPseudoFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target getuidPseudo() handler.

Definition at line 926 of file syscall_emul.cc.

References Process::euid(), ThreadContext::setIntReg(), AlphaISA::SyscallPseudoReturnReg, and Process::uid().

SyscallReturn ignoreFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		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.

Print a warning only if the appropriate trace flag is enabled. Return success to the target program.

Definition at line 67 of file syscall_emul.cc.

References SyscallDesc::name(), SyscallDesc::needWarning(), warn, and SyscallDesc::warnOnce().

SyscallReturn lseekFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target lseek() handler.

Definition at line 312 of file syscall_emul.cc.

References Process::fds, Process::getSyscallArg(), and MipsISA::index.

SyscallReturn mkdirFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target mkdir() handler.

Definition at line 509 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, ArmISA::mode, and SETranslatingPortProxy::tryReadString().

SyscallReturn munmapFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target munmap() handler.

Definition at line 361 of file syscall_emul.cc.

SyscallReturn pipeFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target pipe() handler.

Definition at line 871 of file syscall_emul.cc.

References pipeImpl().

SyscallReturn pipeImpl	(	SyscallDesc *	desc,
		int	callnum,
		Process *	p,
		ThreadContext *	tc,
		bool	pseudoPipe
	)

Internal pipe() handler.

Now patch the read object to record the target file descriptor chosen as the write end of the pipe.

Alpha Linux convention for pipe() is that fd[0] is returned as the return value of the function, and fd[1] is returned in r20.

Copy the target file descriptors into buffer space and then copy the buffer space back into the target address space.

Definition at line 813 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), Process::fds, ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, ThreadContext::setIntReg(), and AlphaISA::SyscallPseudoReturnReg.

Referenced by pipeFunc(), and pipePseudoFunc().

SyscallReturn pipePseudoFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Pseudo Funcs - These functions use a different return convension, returning a second value in a register other than the normal return register.

Definition at line 864 of file syscall_emul.cc.

References pipeImpl().

SyscallReturn readFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Definition at line 266 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), Process::fds, ThreadContext::getMemProxy(), Process::getSyscallArg(), and MipsISA::index.

SyscallReturn readlinkFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Definition at line 419 of file syscall_emul.cc.

References readlinkFunc().

Referenced by readlinkFunc().

SyscallReturn readlinkFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc,
		int	index
	)

Target readlink() handler.

Definition at line 426 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyOut(), fatal, Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), Process::progName(), SETranslatingPortProxy::tryReadString(), and warn_once.

Referenced by readlinkatFunc().

SyscallReturn renameFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target rename() handler.

Definition at line 527 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, and SETranslatingPortProxy::tryReadString().

SyscallReturn setpgidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target setpgid() handler.

Definition at line 877 of file syscall_emul.cc.

References Process::getSyscallArg(), ThreadContext::getSystemPtr(), ThreadContext::Halted, ArmISA::i, MipsISA::index, System::numContexts(), Process::pid(), Process::setpgid(), and System::threadContexts.

SyscallReturn setTidAddressFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target set_tid_address() handler.

Definition at line 245 of file syscall_emul.cc.

References Process::childClearTID, Process::getSyscallArg(), MipsISA::index, and Process::pid().

SyscallReturn setuidFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Target setuid() handler.

Definition at line 949 of file syscall_emul.cc.

References Process::getSyscallArg(), MipsISA::index, and warn.

SyscallReturn truncate64Func	(	SyscallDesc *	desc,
		int	num,
		Process *	process,
		ThreadContext *	tc
	)

Target truncate64() handler.

Definition at line 583 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, length, and SETranslatingPortProxy::tryReadString().

SyscallReturn truncateFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target truncate() handler.

Definition at line 549 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), MipsISA::index, length, and SETranslatingPortProxy::tryReadString().

SyscallReturn umaskFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	process,
		ThreadContext *	tc
	)

Target umask() handler.

Definition at line 626 of file syscall_emul.cc.

SyscallReturn unimplementedFunc	(	SyscallDesc *	desc,
		int	callnum,
		Process *	process,
		ThreadContext *	tc
	)

Handler for unimplemented syscalls that we haven't thought about.

Definition at line 57 of file syscall_emul.cc.

References fatal, and SyscallDesc::name().

SyscallReturn unlinkFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Definition at line 486 of file syscall_emul.cc.

References unlinkHelper().

SyscallReturn unlinkHelper	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc,
		int	index
	)

Target unlink() handler.

Definition at line 492 of file syscall_emul.cc.

References Process::fullPath(), ThreadContext::getMemProxy(), Process::getSyscallArg(), and SETranslatingPortProxy::tryReadString().

Referenced by unlinkatFunc(), and unlinkFunc().

SyscallReturn writeFunc	(	SyscallDesc *	desc,
		int	num,
		Process *	p,
		ThreadContext *	tc
	)

Target write() handler.

Definition at line 288 of file syscall_emul.cc.

References BufferArg::bufferPtr(), BaseBufferArg::copyIn(), Process::fds, ThreadContext::getMemProxy(), Process::getSyscallArg(), and MipsISA::index.

Variable Documentation

const char* hostname = "m5.eecs.umich.edu"

Definition at line 370 of file syscall_emul.cc.

Referenced by gethostnameFunc().

Functions

Variables

Function Documentation

Variable Documentation