fix problems on darwin/*BSD for syscall emulation mode

arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_tru64_process.cc:
    fixup for bsd hosts. Some headers are included by default which means that
    more variables need TGT_ prefixes and there isn't a stat call (everything
    is a stat64 call) so we have to work around that a bit
base/intmath.hh:
base/socket.cc:
    this is no longer needed with mac os 10.4
cpu/inst_seq.hh:
    just use a uint64_t instead of long long
cpu/o3/inst_queue_impl.hh:
    I much cleaner way to get max int
sim/syscall_emul.hh:
    fix stat64 problems on *BSD

--HG--
extra : convert_revision : 9eef5f896e083ae1774e818a9765dd83e0305942

7 files changed, 98 insertions, 69 deletions

diff --git a/arch/alpha/alpha_linux_process.cc b/arch/alpha/alpha_linux_process.cc
index 8f114955f..68d6ca180 100644
--- a/arch/alpha/alpha_linux_process.cc
+++ b/arch/alpha/alpha_linux_process.cc
@@ -71,6 +71,15 @@ class Linux {
     typedef uint32_t gid_t;
     //@}
 
+#if BSD_HOST
+    typedef struct stat hst_stat;
+    typedef struct stat hst_stat64;
+#else
+    typedef struct stat hst_stat ;
+    typedef struct stat64 hst_stat64;
+#endif
+
+
     //@{
     /// open(2) flag values.
     static const int TGT_O_RDONLY	= 00000000;	//!< O_RDONLY
@@ -139,7 +148,7 @@ class Linux {
         uint64_t	st_mtime_nsec;
         uint64_t	tgt_st_ctime;
         uint64_t	st_ctime_nsec;
-        int64_t		__unused[3];
+        int64_t		___unused[3];
     };
 
     /// Length of strings in struct utsname (plus 1 for null char).
@@ -170,18 +179,18 @@ class Linux {
 
     /// Resource enumeration for getrlimit().
     enum rlimit_resources {
-        RLIMIT_CPU = 0,
-        RLIMIT_FSIZE = 1,
-        RLIMIT_DATA = 2,
-        RLIMIT_STACK = 3,
-        RLIMIT_CORE = 4,
-        RLIMIT_RSS = 5,
-        RLIMIT_NOFILE = 6,
-        RLIMIT_AS = 7,
-        RLIMIT_VMEM = 7,
-        RLIMIT_NPROC = 8,
-        RLIMIT_MEMLOCK = 9,
-        RLIMIT_LOCKS = 10
+        TGT_RLIMIT_CPU = 0,
+        TGT_RLIMIT_FSIZE = 1,
+        TGT_RLIMIT_DATA = 2,
+        TGT_RLIMIT_STACK = 3,
+        TGT_RLIMIT_CORE = 4,
+        TGT_RLIMIT_RSS = 5,
+        TGT_RLIMIT_NOFILE = 6,
+        TGT_RLIMIT_AS = 7,
+        TGT_RLIMIT_VMEM = 7,
+        TGT_RLIMIT_NPROC = 8,
+        TGT_RLIMIT_MEMLOCK = 9,
+        TGT_RLIMIT_LOCKS = 10
     };
 
     /// Limit struct for getrlimit/setrlimit.
@@ -208,9 +217,9 @@ class Linux {
 
     //@{
     /// For getrusage().
-    static const int RUSAGE_SELF = 0;
-    static const int RUSAGE_CHILDREN = -1;
-    static const int RUSAGE_BOTH = -2;
+    static const int TGT_RUSAGE_SELF = 0;
+    static const int TGT_RUSAGE_CHILDREN = -1;
+    static const int TGT_RUSAGE_BOTH = -2;
     //@}
 
     /// For getrusage().
@@ -236,8 +245,9 @@ 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
     static void
-    copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
+    copyOutStatBuf(FunctionalMemory *mem, Addr addr, hst_stat *host)
     {
         TypedBufferArg<Linux::tgt_stat> tgt(addr);
 
@@ -257,10 +267,36 @@ class Linux {
 
         tgt.copyOut(mem);
     }
+#else
+    // Third version for bsd systems which no longer have any support for
+    // the old stat() call and stat() is actually a stat64()
+    static void
+    copyOutStatBuf(FunctionalMemory *mem, Addr addr, hst_stat64 *host)
+    {
+        TypedBufferArg<Linux::tgt_stat> tgt(addr);
+
+        tgt->st_dev = host->st_dev;
+        tgt->st_ino = host->st_ino;
+        tgt->st_mode = host->st_mode;
+        tgt->st_nlink = host->st_nlink;
+        tgt->st_uid = host->st_uid;
+        tgt->st_gid = host->st_gid;
+        tgt->st_rdev = host->st_rdev;
+        tgt->st_size = host->st_size;
+        tgt->st_atimeX = host->st_atime;
+        tgt->st_mtimeX = host->st_mtime;
+        tgt->st_ctimeX = host->st_ctime;
+        tgt->st_blksize = host->st_blksize;
+        tgt->st_blocks = host->st_blocks;
+
+        tgt.copyOut(mem);
+    }
+#endif
+
 
     // Same for stat64
     static void
-    copyOutStat64Buf(FunctionalMemory *mem, Addr addr, struct stat64 *host)
+    copyOutStat64Buf(FunctionalMemory *mem, Addr addr, hst_stat64 *host)
     {
         TypedBufferArg<Linux::tgt_stat64> tgt(addr);
 
diff --git a/arch/alpha/alpha_tru64_process.cc b/arch/alpha/alpha_tru64_process.cc
index 6d790b173..1a66d7499 100644
--- a/arch/alpha/alpha_tru64_process.cc
+++ b/arch/alpha/alpha_tru64_process.cc
@@ -28,7 +28,7 @@
 
 #include <sys/types.h>
 #include <sys/stat.h>
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__APPLE__) || defined(__FreeBSD__)
 #include <sys/param.h>
 #include <sys/mount.h>
 #else
@@ -260,15 +260,15 @@ class Tru64 {
 
     /// Resource enumeration for getrlimit().
     enum rlimit_resources {
-        RLIMIT_CPU = 0,
-        RLIMIT_FSIZE = 1,
-        RLIMIT_DATA = 2,
-        RLIMIT_STACK = 3,
-        RLIMIT_CORE = 4,
-        RLIMIT_RSS = 5,
-        RLIMIT_NOFILE = 6,
-        RLIMIT_AS = 7,
-        RLIMIT_VMEM = 7
+        TGT_RLIMIT_CPU = 0,
+        TGT_RLIMIT_FSIZE = 1,
+        TGT_RLIMIT_DATA = 2,
+        TGT_RLIMIT_STACK = 3,
+        TGT_RLIMIT_CORE = 4,
+        TGT_RLIMIT_RSS = 5,
+        TGT_RLIMIT_NOFILE = 6,
+        TGT_RLIMIT_AS = 7,
+        TGT_RLIMIT_VMEM = 7
     };
 
     /// Limit struct for getrlimit/setrlimit.
@@ -320,9 +320,9 @@ class Tru64 {
 
     //@{
     /// For getrusage().
-    static const int RUSAGE_THREAD = 1;
-    static const int RUSAGE_SELF = 0;
-    static const int RUSAGE_CHILDREN = -1;
+    static const int TGT_RUSAGE_THREAD = 1;
+    static const int TGT_RUSAGE_SELF = 0;
+    static const int TGT_RUSAGE_CHILDREN = -1;
     //@}
 
     /// For getrusage().
@@ -568,7 +568,7 @@ class Tru64 {
     {
         TypedBufferArg<T> tgt(addr);
 
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__APPLE__) || defined(__FreeBSD__)
         tgt->f_type = 0;
 #else
         tgt->f_type = host->f_type;
diff --git a/base/intmath.hh b/base/intmath.hh
index c8b9c5ec5..df0687c62 100644
--- a/base/intmath.hh
+++ b/base/intmath.hh
@@ -145,22 +145,6 @@ floorLog2(long long x)
     return floorLog2((unsigned long long)x);
 }
 
-#if defined(__APPLE__)
-inline int
-floorLog2(size_t x)
-{
-    assert(x > 0);
-    assert(sizeof(size_t) == 4 || sizeof(size_t) == 8);
-
-    // It's my hope that this is optimized away?
-    if (sizeof(size_t) == 4)
-        return floorLog2((uint32_t)x);
-     else if (sizeof(size_t) == 8)
-        return floorLog2((uint64_t)x);
-
-}
-#endif
-
 template <class T>
 inline int
 ceilLog2(T n)
diff --git a/base/socket.cc b/base/socket.cc
index f33e79426..45a60e7e3 100644
--- a/base/socket.cc
+++ b/base/socket.cc
@@ -93,9 +93,6 @@ ListenSocket::listen(int port, bool reuse)
     return true;
 }
 
-#if defined(__APPLE__)
-typedef int socklen_t;
-#endif
 
 // Open a connection.  Accept will block, so if you don't want it to,
 // make sure a connection is ready before you call accept.
diff --git a/cpu/inst_seq.hh b/cpu/inst_seq.hh
index 3239d4d24..8de047af7 100644
--- a/cpu/inst_seq.hh
+++ b/cpu/inst_seq.hh
@@ -32,7 +32,7 @@
 // inst sequence type, used to order instructions in the ready list,
 // if this rolls over the ready list order temporarily will get messed
 // up, but execution will continue and complete correctly
-typedef unsigned long long InstSeqNum;
+typedef uint64_t InstSeqNum;
 
 // inst tag type, used to tag an operation instance in the IQ
 typedef unsigned int InstTag;
diff --git a/cpu/o3/inst_queue_impl.hh b/cpu/o3/inst_queue_impl.hh
index 2221ba456..048dc7c00 100644
--- a/cpu/o3/inst_queue_impl.hh
+++ b/cpu/o3/inst_queue_impl.hh
@@ -34,6 +34,7 @@
 // but probably is more flexible to actually add in a delay parameter than
 // just running it backwards.
 
+#include <limits>
 #include <vector>
 
 #include "sim/root.hh"
@@ -42,7 +43,7 @@
 
 // Either compile error or max int due to sign extension.
 // Hack to avoid compile warnings.
-const InstSeqNum MaxInstSeqNum = 0 - 1;
+const InstSeqNum MaxInstSeqNum = std::numeric_limits<InstSeqNum>::max();
 
 template <class Impl>
 InstructionQueue<Impl>::InstructionQueue(Params &params)
diff --git a/sim/syscall_emul.hh b/sim/syscall_emul.hh
index 185ada2c5..a10ee297c 100644
--- a/sim/syscall_emul.hh
+++ b/sim/syscall_emul.hh
@@ -29,6 +29,9 @@
 #ifndef __SIM_SYSCALL_EMUL_HH__
 #define __SIM_SYSCALL_EMUL_HH__
 
+#define BSD_HOST (defined(__APPLE__) || defined(__OpenBSD__) || \
+                  defined(__FreeBSD__))
+
 ///
 /// @file syscall_emul.hh
 ///
@@ -441,8 +444,13 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *process,
         return -EBADF;
     }
 
-    struct stat64 hostBuf;
+#ifdef BSD_HOST
+    struct stat  hostBuf;
+    int result = fstat(process->sim_fd(fd), &hostBuf);
+#else
+    struct stat64  hostBuf;
     int result = fstat64(process->sim_fd(fd), &hostBuf);
+#endif
 
     if (result < 0)
         return errno;
@@ -486,8 +494,13 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
     if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
         return -EFAULT;
 
+#ifdef BSD_HOST
+    struct stat hostBuf;
+    int result = lstat(path.c_str(), &hostBuf);
+#else
     struct stat64 hostBuf;
     int result = lstat64(path.c_str(), &hostBuf);
+#endif
 
     if (result < 0)
         return -errno;
@@ -517,7 +530,6 @@ fstatFunc(SyscallDesc *desc, int callnum, Process *process,
         return -errno;
 
     OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
-
     return 0;
 }
 
@@ -653,22 +665,22 @@ mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 template <class OS>
 SyscallReturn
 getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
-              ExecContext *xc)
+        ExecContext *xc)
 {
     unsigned resource = xc->getSyscallArg(0);
     TypedBufferArg<typename OS::rlimit> rlp(xc->getSyscallArg(1));
 
     switch (resource) {
-      case OS::RLIMIT_STACK:
-        // max stack size in bytes: make up a number (2MB for now)
-        rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
-        break;
-
-      default:
-        std::cerr << "getrlimitFunc: unimplemented resource " << resource
-                  << std::endl;
-        abort();
-        break;
+        case OS::TGT_RLIMIT_STACK:
+            // max stack size in bytes: make up a number (2MB for now)
+            rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
+            break;
+
+        default:
+            std::cerr << "getrlimitFunc: unimplemented resource " << resource
+                << std::endl;
+            abort();
+            break;
     }
 
     rlp.copyOut(xc->mem);
@@ -679,7 +691,7 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
 template <class OS>
 SyscallReturn
 gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
-                 ExecContext *xc)
+        ExecContext *xc)
 {
     TypedBufferArg<typename OS::timeval> tp(xc->getSyscallArg(0));
 
@@ -719,7 +731,6 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
 
     return 0;
 }
-
 /// Target getrusage() function.
 template <class OS>
 SyscallReturn
@@ -729,7 +740,7 @@ getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
     int who = xc->getSyscallArg(0);	// THREAD, SELF, or CHILDREN
     TypedBufferArg<typename OS::rusage> rup(xc->getSyscallArg(1));
 
-    if (who != OS::RUSAGE_SELF) {
+    if (who != OS::TGT_RUSAGE_SELF) {
         // don't really handle THREAD or CHILDREN, but just warn and
         // plow ahead
         warn("getrusage() only supports RUSAGE_SELF.  Parameter %d ignored.",