#include "mem/se_translating_port_proxy.hh"
#include "sim/fd_array.hh"
#include "sim/fd_entry.hh"
+#include "sim/mem_state.hh"
#include "sim/sim_object.hh"
struct ProcessParams;
class Process : public SimObject
{
public:
- struct WaitRec
- {
- Addr waitChan;
- ThreadContext *waitingContext;
-
- WaitRec(Addr chan, ThreadContext *ctx)
- : waitChan(chan), waitingContext(ctx)
- { }
- };
-
Process(ProcessParams *params, ObjectFile *obj_file);
void serialize(CheckpointOut &cp) const override;
void initState() override;
DrainState drain() override;
- void syscall(int64_t callnum, ThreadContext *tc);
+ virtual void syscall(int64_t callnum, ThreadContext *tc, Fault *fault);
virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i) = 0;
virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width);
virtual void setSyscallArg(ThreadContext *tc, int i,
inline uint64_t egid() { return _egid; }
inline uint64_t pid() { return _pid; }
inline uint64_t ppid() { return _ppid; }
+ inline uint64_t pgid() { return _pgid; }
+ inline uint64_t tgid() { return _tgid; }
+ inline void setpgid(uint64_t pgid) { _pgid = pgid; }
const char *progName() const { return executable.c_str(); }
std::string fullPath(const std::string &filename);
* Find an emulated device driver.
*
* @param filename Name of the device (under /dev)
- * @return Pointer to driver object if found, else NULL
+ * @return Pointer to driver object if found, else nullptr
*/
EmulatedDriver *findDriver(std::string filename);
ThreadContext *findFreeContext();
/**
- * Does mmap region grow upward or downward from mmap_end? Most
+ * After delegating a thread context to a child process
+ * no longer should relate to the ThreadContext
+ */
+ void revokeThreadContext(int context_id);
+
+ /**
+ * Does mmap region grow upward or downward from mmapEnd? Most
* platforms grow downward, but a few (such as Alpha) grow upward
* instead, so they can override this method to return false.
*/
*/
bool map(Addr vaddr, Addr paddr, int size, bool cacheable = true);
- // list of all blocked contexts
- std::list<WaitRec> waitList;
+ void replicatePage(Addr vaddr, Addr new_paddr, ThreadContext *old_tc,
+ ThreadContext *new_tc, bool alloc_page);
+
+ virtual void clone(ThreadContext *old_tc, ThreadContext *new_tc,
+ Process *new_p, TheISA::IntReg flags);
// thread contexts associated with this process
std::vector<ContextID> contextIds;
// system object which owns this process
System *system;
- Addr brk_point; // top of the data segment
- Addr stack_base; // stack segment base
- unsigned stack_size; // initial stack size
- Addr stack_min; // furthest address accessed from stack base
- Addr max_stack_size; // the maximum size allowed for the stack
- Addr next_thread_stack_base; // addr for next region w/ multithreaded apps
- Addr mmap_end; // base of automatic mmap region allocs
-
- Stats::Scalar num_syscalls; // track how many system calls are executed
+ Stats::Scalar numSyscalls; // track how many system calls are executed
bool useArchPT; // flag for using architecture specific page table
bool kvmInSE; // running KVM requires special initialization
// pid of the process and it's parent
uint64_t _pid;
uint64_t _ppid;
+ uint64_t _pgid;
+ uint64_t _tgid;
// Emulated drivers available to this process
std::vector<EmulatedDriver *> drivers;
std::shared_ptr<FDArray> fds;
+
+ bool *exitGroup;
+ std::shared_ptr<MemState> memState;
+
+ /**
+ * Calls a futex wakeup at the address specified by this pointer when
+ * this process exits.
+ */
+ uint64_t childClearTID;
+
+ // Process was forked with SIGCHLD set.
+ bool *sigchld;
};
#endif // __PROCESS_HH__