ARM: Fix SPEC2000 benchmarks in SE mode. With this patch all

Spec2k benchmarks seem to run with atomic or timing mode simple
CPUs. Fixed up some constants, handling of 64 bit arguments,
and marked a few more syscalls ignoreFunc.

src/arch/arm/linux/linux.cc

@@ -56,15 +56,30 @@ OpenFlagTransTable ArmLinux::openFlagTable[] = {
   { ArmLinux::TGT_O_RDONLY,	O_RDONLY },
   { ArmLinux::TGT_O_WRONLY,	O_WRONLY },
   { ArmLinux::TGT_O_RDWR,	O_RDWR },
-  { ArmLinux::TGT_O_APPEND,	O_APPEND },
   { ArmLinux::TGT_O_CREAT,	O_CREAT },
-  { ArmLinux::TGT_O_TRUNC,	O_TRUNC },
   { ArmLinux::TGT_O_EXCL,	O_EXCL },
-  { ArmLinux::TGT_O_NONBLOCK,	O_NONBLOCK },
   { ArmLinux::TGT_O_NOCTTY,	O_NOCTTY },
+  { ArmLinux::TGT_O_TRUNC,	O_TRUNC },
+  { ArmLinux::TGT_O_APPEND,	O_APPEND },
+  { ArmLinux::TGT_O_NONBLOCK,	O_NONBLOCK },
 #ifdef O_SYNC
   { ArmLinux::TGT_O_SYNC,	O_SYNC },
 #endif
+#ifdef FASYNC
+  { ArmLinux::TGT_FASYNC,	FASYNC },
+#endif
+#ifdef O_DIRECT
+  { ArmLinux::TGT_O_DIRECT,	O_DIRECT },
+#endif
+#ifdef O_LARGEFILE
+  { ArmLinux::TGT_O_LARGEFILE,	O_LARGEFILE },
+#endif
+#ifdef O_DIRECTORY
+  { ArmLinux::TGT_O_DIRECTORY,	O_DIRECTORY },
+#endif
+#ifdef O_NOFOLLOW
+  { ArmLinux::TGT_O_NOFOLLOW,	O_NOFOLLOW },
+#endif
 #endif /* _MSC_VER */
 };
 

src/arch/arm/linux/linux.hh

@@ -79,11 +79,14 @@ class ArmLinux : public Linux
     static const int TGT_O_NONBLOCK  = 00004000; //!< O_NONBLOCK
     static const int TGT_O_SYNC      = 00010000; //!< O_SYNC
     static const int TGT_FASYNC      = 00020000; //!< FASYNC
-    static const int TGT_O_DIRECTORY = 00040000; //!< O_DIRECTORY
-    static const int TGT_O_NOFOLLOW  = 00100000; //!< O_NOFOLLOW
-    static const int TGT_O_DIRECT    = 00200000; //!< O_DIRECT
-    static const int TGT_O_LARGEFILE = 00400000; //!< O_LARGEFILE
+    static const int TGT_O_DIRECT    = 00040000; //!< O_DIRECT
+    static const int TGT_O_LARGEFILE = 00100000; //!< O_LARGEFILE
+    static const int TGT_O_DIRECTORY = 00200000; //!< O_DIRECTORY
+    static const int TGT_O_NOFOLLOW  = 00400000; //!< O_NOFOLLOW
     static const int TGT_O_NOATIME   = 01000000; //!< O_NOATIME
+    static const int TGT_O_CLOEXEC   = 02000000; //!< O_NOATIME
+
+
     //@}
 
     /// For mmap().
@@ -106,7 +109,7 @@ class ArmLinux : public Linux
     static const unsigned FIONREAD_   = 0x4004667f;
     static const unsigned TIOCISATTY_ = 0x2000745e;
     static const unsigned TIOCGETS_   = 0x402c7413;
-    static const unsigned TIOCGETA_   = 0x40127417;
+    static const unsigned TIOCGETA_   = 0x5405;
     static const unsigned TCSETAW_    = 0x5407;     // 2.6.15 kernel
     //@}
 

src/arch/arm/linux/process.cc

@@ -152,7 +152,7 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = {
     /* 72 */ SyscallDesc("sigsuspend", unimplementedFunc),
     /* 73 */ SyscallDesc("sigpending", unimplementedFunc),
     /* 74 */ SyscallDesc("sethostname", ignoreFunc),
-    /* 75 */ SyscallDesc("setrlimit", unimplementedFunc),
+    /* 75 */ SyscallDesc("setrlimit", ignoreFunc),
     /* 76 */ SyscallDesc("getrlimit", unimplementedFunc),
     /* 77 */ SyscallDesc("getrusage", getrusageFunc<ArmLinux>),
     /* 78 */ SyscallDesc("gettimeofday", gettimeofdayFunc<ArmLinux>),
@@ -251,7 +251,7 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = {
     /* 171 */ SyscallDesc("getresgid", unimplementedFunc),
     /* 172 */ SyscallDesc("prctl", unimplementedFunc),
     /* 173 */ SyscallDesc("rt_sigreturn", unimplementedFunc),
-    /* 174 */ SyscallDesc("rt_sigaction", unimplementedFunc),
+    /* 174 */ SyscallDesc("rt_sigaction", ignoreFunc),
     /* 175 */ SyscallDesc("rt_sigprocmask", unimplementedFunc),
     /* 176 */ SyscallDesc("rt_sigpending", unimplementedFunc),
     /* 177 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc),
@@ -268,10 +268,10 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = {
     /* 188 */ SyscallDesc("unused#188", unimplementedFunc),
     /* 189 */ SyscallDesc("unused#189", unimplementedFunc),
     /* 190 */ SyscallDesc("vfork", unimplementedFunc),
-    /* 191 */ SyscallDesc("getrlimit", unimplementedFunc),
+    /* 191 */ SyscallDesc("getrlimit", getrlimitFunc<ArmLinux>),
     /* 192 */ SyscallDesc("mmap2", mmapFunc<ArmLinux>),
     /* 193 */ SyscallDesc("truncate64", unimplementedFunc),
-    /* 194 */ SyscallDesc("ftruncate64", unimplementedFunc),
+    /* 194 */ SyscallDesc("ftruncate64", ftruncate64Func),
     /* 195 */ SyscallDesc("stat64", stat64Func<ArmLinux>),
     /* 196 */ SyscallDesc("lstat64", lstat64Func<ArmLinux>),
     /* 197 */ SyscallDesc("fstat64", fstat64Func<ArmLinux>),

src/arch/arm/process.cc

@@ -362,10 +362,30 @@ ArmLiveProcess::argsInit(int intSize, int pageSize)
 ArmISA::IntReg
 ArmLiveProcess::getSyscallArg(ThreadContext *tc, int &i)
 {
-    assert(i < 4);
+    assert(i < 6);
     return tc->readIntReg(ArgumentReg0 + i++);
 }
 
+uint64_t
+ArmLiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
+{
+    assert(width == 32 || width == 64);
+    if (width == 32)
+        return getSyscallArg(tc, i);
+
+    // 64 bit arguments are passed starting in an even register
+    if (i % 2 != 0)
+       i++;
+
+    // Registers r0-r6 can be used
+    assert(i < 5);
+    uint64_t val;
+    val = tc->readIntReg(ArgumentReg0 + i++);
+    val |= ((uint64_t)tc->readIntReg(ArgumentReg0 + i++) << 32);
+    return val;
+}
+
+
 void
 ArmLiveProcess::setSyscallArg(ThreadContext *tc,
         int i, ArmISA::IntReg val)

src/arch/arm/process.hh

@@ -56,6 +56,7 @@ class ArmLiveProcess : public LiveProcess
   public:
     void argsInit(int intSize, int pageSize);
 
+    uint64_t getSyscallArg(ThreadContext *tc, int &i, int width);
     ArmISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
     void setSyscallArg(ThreadContext *tc, int i, ArmISA::IntReg val);
     void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);