Modify the emulated system calls to support running the SPEC Int

benchmarks for alpha-linux.

arch/alpha/alpha_linux_process.cc:
    Added some more ioctl commands to ignore.
    Set unlink and rename to the new functions.
    Ignore setrlimit, times and rt_sigaction.
    Should eventually provide a function for times.
arch/alpha/alpha_tru64_process.cc:
    Added some more ioctl commands to ignore.
    Set unlink and rename to the new functions.
    Ignore setrlimit.
sim/syscall_emul.cc:
    Added implementations for unlink and rename.
sim/syscall_emul.hh:
    Added unlink and rename functions.
    Added a couple more ioctl requests to ignore.
    Print out the PC of any ioctl commands that fail.

--HG--
extra : convert_revision : 8af21c7fa7d0645d3f9324c9ce70ad33590c3c8e

2 files changed, 37 insertions, 1 deletions

diff --git a/sim/syscall_emul.cc b/sim/syscall_emul.cc
index 9955d4421..e953a7308 100644
--- a/sim/syscall_emul.cc
+++ b/sim/syscall_emul.cc
@@ -185,4 +185,32 @@ gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
     return 0;
 }
 
+int
+unlinkFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    int result = unlink(path.c_str());
+    return (result == -1) ? -errno : result;
+}
+
+int
+renameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    std::string old_name;
+
+    if (xc->mem->readString(old_name, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    std::string new_name;
+
+    if (xc->mem->readString(new_name, xc->getSyscallArg(1)) != No_Fault)
+        return -EFAULT;
+
+    int result = rename(old_name.c_str(),new_name.c_str());
+    return (result == -1) ? -errno : result;
+}
 
diff --git a/sim/syscall_emul.hh b/sim/syscall_emul.hh
index df4038f71..b425ef83c 100644
--- a/sim/syscall_emul.hh
+++ b/sim/syscall_emul.hh
@@ -191,6 +191,12 @@ int munmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
 /// Target gethostname() handler.
 int gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
 
+/// Target unlink() handler.
+int unlinkFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target rename() handler.
+int renameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
 //////////////////////////////////////////////////////////////////////
 //
 // The following emulation functions are generic, but need to be
@@ -223,10 +229,12 @@ ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
       case OS::TIOCSETN:
       case OS::TIOCSETC:
       case OS::TIOCGETC:
+      case OS::TIOCGETS:
+      case OS::TIOCGETA:
         return -ENOTTY;
 
       default:
-        fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...)\n", fd, req);
+        fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...) @ 0x%llx\n", fd, req, xc->readPC());
     }
 }