gem5::BaseBufferArg Class Reference

Base class for BufferArg and TypedBufferArg, Not intended to be used directly. More...

#include <syscall_emul_buf.hh>

Inheritance diagram for gem5::BaseBufferArg:

Public Member Functions
	BaseBufferArg (Addr _addr, uint64_t _size)
	Allocate a buffer of size 'size' representing the memory at target address 'addr'.
	~BaseBufferArg ()
bool	copyIn (const PortProxy &memproxy)
	copy data into simulator space (read from target memory)
bool	copyOut (const PortProxy &memproxy)
	copy data out of simulator space (write to target memory)

Protected Attributes
const Addr	addr
	address of buffer in target address space
const uint64_t	size
	buffer size
uint8_t *const	bufPtr
	pointer to buffer in simulator space

Detailed Description

Base class for BufferArg and TypedBufferArg, Not intended to be used directly.

The BufferArg classes represent buffers in target user space that are passed by reference to an (emulated) system call. Each instance provides an internal (simulator-space) buffer of the appropriate size and tracks the user-space address. The copyIn() and copyOut() methods copy the user-space buffer to and from the simulator-space buffer, respectively.

Definition at line 57 of file syscall_emul_buf.hh.

Constructor & Destructor Documentation

BaseBufferArg()

gem5::BaseBufferArg::BaseBufferArg ( Addr _addr, uint64_t _size )

inline

Allocate a buffer of size 'size' representing the memory at target address 'addr'.

Definition at line 66 of file syscall_emul_buf.hh.

References addr, bufPtr, and size.

Referenced by gem5::BufferArg::BufferArg(), and gem5::TypedBufferArg< T >::TypedBufferArg().

~BaseBufferArg()

gem5::BaseBufferArg::~BaseBufferArg ( )

inline

Definition at line 75 of file syscall_emul_buf.hh.

References bufPtr.

Member Function Documentation

copyIn()

bool gem5::BaseBufferArg::copyIn ( const PortProxy & memproxy )

inline

copy data into simulator space (read from target memory)

Definition at line 81 of file syscall_emul_buf.hh.

References addr, bufPtr, gem5::PortProxy::readBlob(), and size.

Referenced by gem5::acceptFunc(), gem5::GPUComputeDriver::allocateQueue(), gem5::bindFunc(), gem5::futexFunc(), gem5::getpeernameFunc(), gem5::getsocknameFunc(), gem5::RiscvISA::hwprobe_get_cpus(), gem5::RiscvISA::hwprobe_get_values(), gem5::GPUComputeDriver::ioctl(), gem5::ioctlFunc(), gem5::pollFunc(), gem5::pwrite64Func(), gem5::recvfromFunc(), gem5::recvmsgFunc(), gem5::schedGetaffinityFunc(), gem5::sendmsgFunc(), gem5::sendtoFunc(), gem5::setsockoptFunc(), gem5::X86ISA::setThreadArea32Func(), gem5::ArmISA::sysctlFunc(), and gem5::writeFunc().

copyOut()

bool gem5::BaseBufferArg::copyOut ( const PortProxy & memproxy )

inline

copy data out of simulator space (write to target memory)

Definition at line 91 of file syscall_emul_buf.hh.

References addr, bufPtr, size, and gem5::PortProxy::writeBlob().

Referenced by gem5::_llseekFunc(), gem5::acceptFunc(), gem5::GPUComputeDriver::allocateQueue(), gem5::doClone(), gem5::exitFutexWake(), gem5::futexFunc(), gem5::getcwdFunc(), gem5::getpeernameFunc(), gem5::getrandomFunc(), gem5::SparcISA::getresuidFunc(), gem5::getsocknameFunc(), gem5::getsockoptFunc(), gem5::RiscvISA::hwprobe_get_cpus(), gem5::RiscvISA::hwprobe_get_values(), gem5::GPUComputeDriver::ioctl(), gem5::ioctlFunc(), gem5::pipe2Func(), gem5::pollFunc(), gem5::pread64Func(), gem5::readFunc(), gem5::readlinkatFunc(), gem5::recvfromFunc(), gem5::recvmsgFunc(), gem5::schedGetaffinityFunc(), gem5::X86ISA::setThreadArea32Func(), gem5::socketpairFunc(), gem5::ArmISA::sysctlFunc(), and gem5::wait4Func().

Member Data Documentation

addr

const Addr gem5::BaseBufferArg::addr

protected

address of buffer in target address space

Definition at line 98 of file syscall_emul_buf.hh.

Referenced by BaseBufferArg(), copyIn(), and copyOut().

bufPtr

uint8_t* const gem5::BaseBufferArg::bufPtr

protected

pointer to buffer in simulator space

Definition at line 100 of file syscall_emul_buf.hh.

Referenced by BaseBufferArg(), gem5::BufferArg::bufferPtr(), copyIn(), copyOut(), gem5::TypedBufferArg< T >::operator T*(), gem5::TypedBufferArg< T >::operator*(), gem5::TypedBufferArg< T >::operator->(), gem5::TypedBufferArg< T >::operator[](), and ~BaseBufferArg().

size

const uint64_t gem5::BaseBufferArg::size

protected

buffer size

Definition at line 99 of file syscall_emul_buf.hh.

Referenced by BaseBufferArg(), copyIn(), and copyOut().

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The documentation for this class was generated from the following file:

• sim/syscall_emul_buf.hh