sim: Add an option to forward work items to Python

[gem5.git] / src / kern / operatingsystem.hh

diff --git a/src/kern/operatingsystem.hh b/src/kern/operatingsystem.hh
index 99358ae03d3c260210da525f8325c82221a12f90..fd5899cf8b701e8902411761c00d9585afe8320f 100644 (file)
--- a/src/kern/operatingsystem.hh
+++ b/src/kern/operatingsystem.hh
@@ -31,21 +31,18 @@
 #ifndef __KERN_OPERATINGSYSTEM_HH__
 #define __KERN_OPERATINGSYSTEM_HH__
 
-#include "config/full_system.hh"
+#include "base/types.hh"
 
-#include <inttypes.h>
+#include <string>
 
-#if FULL_SYSTEM
-
-class OperatingSystem {};
-
-#else //!FULL_SYSTEM
+class LiveProcess;
+class ThreadContext;
 
 /// This struct is used to build an target-OS-dependent table that
 /// maps the target's open() flags to the host open() flags.
 struct OpenFlagTransTable {
-    int tgtFlag;       //!< Target system flag value.
-    int hostFlag;      //!< Corresponding host system flag value.
+    int tgtFlag;        //!< Target system flag value.
+    int hostFlag;       //!< Corresponding host system flag value.
 };
 
 
@@ -71,23 +68,23 @@ class OperatingSystem {
 
     /// Interface struct for uname().
     typedef struct {
-        char sysname[_SYS_NMLN];       //!< System name.
-        char nodename[_SYS_NMLN];      //!< Node name.
-        char release[_SYS_NMLN];       //!< OS release.
-        char version[_SYS_NMLN];       //!< OS version.
-        char machine[_SYS_NMLN];       //!< Machine type.
+        char sysname[_SYS_NMLN];        //!< System name.
+        char nodename[_SYS_NMLN];       //!< Node name.
+        char release[_SYS_NMLN];        //!< OS release.
+        char version[_SYS_NMLN];        //!< OS version.
+        char machine[_SYS_NMLN];        //!< Machine type.
     } utsname;
 
     /// Limit struct for getrlimit/setrlimit.
     typedef struct {
-        uint64_t  rlim_cur;    //!< soft limit
-        uint64_t  rlim_max;    //!< hard limit
+        uint64_t  rlim_cur;     //!< soft limit
+        uint64_t  rlim_max;     //!< hard limit
     } rlimit;
 
     /// For gettimeofday().
     typedef struct {
-        int64_t tv_sec;                //!< seconds
-        int64_t tv_usec;       //!< microseconds
+        int64_t tv_sec;         //!< seconds
+        int64_t tv_usec;        //!< microseconds
     } timeval;
 
     // For writev/readv
@@ -99,27 +96,30 @@ class OperatingSystem {
 
     /// For getrusage().
     typedef struct {
-        timeval ru_utime;      //!< user time used
-        timeval ru_stime;      //!< system time used
-        int64_t ru_maxrss;             //!< max rss
-        int64_t ru_ixrss;              //!< integral shared memory size
-        int64_t ru_idrss;              //!< integral unshared data "
-        int64_t ru_isrss;              //!< integral unshared stack "
-        int64_t ru_minflt;             //!< page reclaims - total vmfaults
-        int64_t ru_majflt;             //!< page faults
-        int64_t ru_nswap;              //!< swaps
-        int64_t ru_inblock;            //!< block input operations
-        int64_t ru_oublock;            //!< block output operations
-        int64_t ru_msgsnd;             //!< messages sent
-        int64_t ru_msgrcv;             //!< messages received
-        int64_t ru_nsignals;           //!< signals received
-        int64_t ru_nvcsw;              //!< voluntary context switches
-        int64_t ru_nivcsw;             //!< involuntary "
+        timeval ru_utime;       //!< user time used
+        timeval ru_stime;       //!< system time used
+        int64_t ru_maxrss;              //!< max rss
+        int64_t ru_ixrss;               //!< integral shared memory size
+        int64_t ru_idrss;               //!< integral unshared data "
+        int64_t ru_isrss;               //!< integral unshared stack "
+        int64_t ru_minflt;              //!< page reclaims - total vmfaults
+        int64_t ru_majflt;              //!< page faults
+        int64_t ru_nswap;               //!< swaps
+        int64_t ru_inblock;             //!< block input operations
+        int64_t ru_oublock;             //!< block output operations
+        int64_t ru_msgsnd;              //!< messages sent
+        int64_t ru_msgrcv;              //!< messages received
+        int64_t ru_nsignals;            //!< signals received
+        int64_t ru_nvcsw;               //!< voluntary context switches
+        int64_t ru_nivcsw;              //!< involuntary "
     } rusage;
 
-};  // class OperatingSystem
+    static int openSpecialFile(std::string path, LiveProcess *process, ThreadContext *tc);
 
+    static const bool mmapGrowsUp = true;
 
-#endif // FULL_SYSTEM
+    static bool mmapGrowsDown() { return false; }
+
+};  // class OperatingSystem
 
 #endif // __OPERATINGSYSTEM_HH__