Merge zizzer:/bk/newmem

into  zeep.eecs.umich.edu:/z/saidi/work/m5.newmem

--HG--
extra : convert_revision : 9b628a0ee157657ac76c3a9455108d033c125822

configs/test/SysPaths.py

@@ -1,32 +1,42 @@
-from m5 import *
+import os, sys
+from os.path import isdir, join as joinpath
+from os import environ as env
 
-import os.path
-import sys
+systemdir = None
+bindir = None
+diskdir = None
+scriptdir = None
 
-# Edit the following list to include the possible paths to the binary
-# and disk image directories.  The first directory on the list that
-# exists will be selected.
-SYSTEMDIR_PATH = ['/n/poolfs/z/dist/m5/system']
+def load_defaults():
+    global systemdir, bindir, diskdir, scriptdir
+    if not systemdir:
+        try:
+                path = env['M5_PATH'].split(':')
+        except KeyError:
+                path = [ '/dist/m5/system' ]
 
-SYSTEMDIR = None
-for d in SYSTEMDIR_PATH:
-    if os.path.exists(d):
-        SYSTEMDIR = d
-        break
+        for systemdir in path:
+            if os.path.isdir(systemdir):
+                break
+        else:
+            raise ImportError, "Can't find a path to system files."
 
-if not SYSTEMDIR:
-    print >>sys.stderr, "Can't find a path to system files."
-    sys.exit(1)
-
-BINDIR = SYSTEMDIR + '/binaries'
-DISKDIR = SYSTEMDIR + '/disks'
+    if not bindir:
+        bindir = joinpath(systemdir, 'binaries')
+    if not diskdir:
+        diskdir = joinpath(systemdir, 'disks')
+    if not scriptdir:
+        scriptdir = joinpath(systemdir, 'boot')
 
 def disk(file):
-    return os.path.join(DISKDIR, file)
+    load_defaults()
+    return joinpath(diskdir, file)
 
 def binary(file):
-    return os.path.join(BINDIR, file)
+    load_defaults()
+    return joinpath(bindir, file)
 
 def script(file):
-    return os.path.join(SYSTEMDIR, 'boot', file)
+    load_defaults()
+    return joinpath(scriptdir, file)
 

src/arch/alpha/system.cc

@@ -26,6 +26,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Authors: Ali Saidi
+ *          Nathan Binkert
  */
 
 #include "arch/alpha/ev5.hh"

src/arch/alpha/system.hh

@@ -26,6 +26,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Authors: Ali Saidi
+ *          Nathan Binkert
  */
 
 #ifndef __ARCH_ALPHA_SYSTEM_HH__

src/base/timebuf.hh

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Kevin Lim
+ * Authors: Nathan Binkert
+ *          Kevin Lim
  */
 
 #ifndef __BASE_TIMEBUF_HH__

src/dev/ns_gige.cc

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Lisa Hsu
+ * Authors: Nathan Binkert
+ *          Lisa Hsu
  */
 
 /** @file

src/dev/ns_gige.hh

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Lisa Hsu
+ * Authors: Nathan Binkert
+ *          Lisa Hsu
  */
 
 /** @file

src/dev/platform.hh

@@ -26,6 +26,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * Authors: Andrew Schultz
+ *          Nathan Binkert
  */
 
 /**

src/kern/linux/events.cc

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Ali Saidi
+ * Authors: Nathan Binkert
+ *          Ali Saidi
  */
 
 #include "arch/arguments.hh"

src/kern/linux/events.hh

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Ali Saidi
+ * Authors: Nathan Binkert
+ *          Ali Saidi
  */
 
 #ifndef __KERN_LINUX_EVENTS_HH__

src/kern/linux/linux.hh

@@ -69,7 +69,7 @@ class Linux {
     typedef uint32_t gid_t;
     //@}
 
-#if BSD_HOST
+#if NO_STAT64
     typedef struct stat hst_stat;
     typedef struct stat hst_stat64;
 #else
@@ -176,7 +176,7 @@ class Linux {
     /// Helper function to convert a host stat buffer to a target stat
     /// buffer.  Also copies the target buffer out to the simulated
     /// memory space.  Used by stat(), fstat(), and lstat().
-#if !BSD_HOST
+#if !NO_STAT64
     static void
     copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat *host)
     {

src/kern/linux/printk.cc

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Ali Saidi
+ * Authors: Nathan Binkert
+ *          Ali Saidi
  */
 
 #include <sys/types.h>

src/kern/linux/printk.hh

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Ali Saidi
+ * Authors: Nathan Binkert
+ *          Ali Saidi
  */
 
 #ifndef __PRINTK_HH__

src/kern/solaris/solaris.hh

@@ -74,7 +74,7 @@ class Solaris {
     typedef uint32_t nlink_t;
     //@}
 
-#if BSD_HOST
+#if NO_STAT64
     typedef struct stat hst_stat;
     typedef struct stat hst_stat64;
 #else
@@ -177,7 +177,7 @@ class Solaris {
     /// Helper function to convert a host stat buffer to a target stat
     /// buffer.  Also copies the target buffer out to the simulated
     /// memory space.  Used by stat(), fstat(), and lstat().
-#if !BSD_HOST
+#if !NO_STAT64
     static void
     copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat *host)
     {

src/kern/system_events.hh

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Lisa Hsu
+ * Authors: Nathan Binkert
+ *          Lisa Hsu
  *          Ali Saidi
  */
 

src/sim/byteswap.hh

@@ -91,25 +91,23 @@ swap_byte16(uint16_t x)
 #endif
 }
 
-//This lets the compiler figure out how to call the swap_byte functions above
-//for different data types.
-static inline uint64_t swap_byte(uint64_t x) {return swap_byte64(x);}
-static inline int64_t swap_byte(int64_t x) {return swap_byte64((uint64_t)x);}
-static inline uint32_t swap_byte(uint32_t x) {return swap_byte32(x);}
-static inline int32_t swap_byte(int32_t x) {return swap_byte32((uint32_t)x);}
-//This is to prevent the following two functions from compiling on
-//64bit machines. It won't detect everything, so it should be changed.
-#ifndef __x86_64__
-static inline long swap_byte(long x) {return swap_byte32((long)x);}
-static inline unsigned long swap_byte(unsigned long x)
-                                { return swap_byte32((unsigned long)x);}
-#endif
-static inline uint16_t swap_byte(uint16_t x) {return swap_byte32(x);}
-static inline int16_t swap_byte(int16_t x) {return swap_byte16((uint16_t)x);}
-static inline uint8_t swap_byte(uint8_t x) {return x;}
-static inline int8_t swap_byte(int8_t x) {return x;}
-static inline double swap_byte(double x) {return swap_byte64((uint64_t)x);}
-static inline float swap_byte(float x) {return swap_byte32((uint32_t)x);}
+// This function lets the compiler figure out how to call the
+// swap_byte functions above for different data types.  Since the
+// sizeof() values are known at compiel time, it should inline to a
+// direct call to the right swap_byteNN() function.
+template <typename T>
+static inline T swap_byte(T x) {
+    if (sizeof(T) == 8)
+        return swap_byte64((uint64_t)x);
+    else if (sizeof(T) == 4)
+        return swap_byte32((uint32_t)x);
+    else if (sizeof(T) == 2)
+        return swap_byte16((uint16_t)x);
+    else if (sizeof(T) == 1)
+        return x;
+    else
+        panic("Can't byte-swap values larger than 64 bits");
+}
 
 //The conversion functions with fixed endianness on both ends don't need to
 //be in a namespace

src/sim/serialize.cc

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Erik Hallnor
+ * Authors: Nathan Binkert
+ *          Erik Hallnor
  *          Steve Reinhardt
  */
 

src/sim/serialize.hh

@@ -25,7 +25,8 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Erik Hallnor
+ * Authors: Nathan Binkert
+ *          Erik Hallnor
  *          Steve Reinhardt
  */
 

src/sim/syscall_emul.hh

@@ -33,8 +33,8 @@
 #ifndef __SIM_SYSCALL_EMUL_HH__
 #define __SIM_SYSCALL_EMUL_HH__
 
-#define BSD_HOST (defined(__APPLE__) || defined(__OpenBSD__) || \
-                  defined(__FreeBSD__))
+#define NO_STAT64 (defined(__APPLE__) || defined(__OpenBSD__) || \
+                   defined(__FreeBSD__) || defined(__CYGWIN__))
 
 ///
 /// @file syscall_emul.hh
@@ -507,7 +507,7 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *process,
         return -EBADF;
     }
 
-#if BSD_HOST
+#if NO_STAT64
     struct stat  hostBuf;
     int result = fstat(process->sim_fd(fd), &hostBuf);
 #else
@@ -557,7 +557,7 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
     if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
       return -EFAULT;
 
-#if BSD_HOST
+#if NO_STAT64
     struct stat hostBuf;
     int result = lstat(path.c_str(), &hostBuf);
 #else