Apply patch for syscall emulation provided by Antti Miettinen (apm@brigitte.dna.fi). It provides support for more syscalls in syscall emulation mode.

arch/alpha/alpha_linux_process.cc:
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    Apply patch for syscall emulation provided by Antti Miettinen (apm@brigitte.dna.fi).

--HG--
extra : convert_revision : 37fbc78a927110b7798343afd2c5f37a269e42b4

2 files changed, 213 insertions, 0 deletions

diff --git a/sim/syscall_emul.cc b/sim/syscall_emul.cc
index 50650018e..4b6388a41 100644
--- a/sim/syscall_emul.cc
+++ b/sim/syscall_emul.cc
@@ -242,3 +242,39 @@ ftruncateFunc(SyscallDesc *desc, int num, Process *process, ExecContext *xc)
     int result = ftruncate(fd, length);
     return (result == -1) ? -errno : result;
 }
+
+SyscallReturn
+chownFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    /* XXX endianess */
+    uint32_t owner = xc->getSyscallArg(1);
+    uid_t hostOwner = owner;
+    uint32_t group = xc->getSyscallArg(2);
+    gid_t hostGroup = group;
+
+    int result = chown(path.c_str(), hostOwner, hostGroup);
+    return (result == -1) ? -errno : result;
+}
+
+SyscallReturn
+fchownFunc(SyscallDesc *desc, int num, Process *process, ExecContext *xc)
+{
+    int fd = process->sim_fd(xc->getSyscallArg(0));
+
+    if (fd < 0)
+        return -EBADF;
+
+    /* XXX endianess */
+    uint32_t owner = xc->getSyscallArg(1);
+    uid_t hostOwner = owner;
+    uint32_t group = xc->getSyscallArg(2);
+    gid_t hostGroup = group;
+
+    int result = fchown(fd, hostOwner, hostGroup);
+    return (result == -1) ? -errno : result;
+}
diff --git a/sim/syscall_emul.hh b/sim/syscall_emul.hh
index f22b6dcb7..2bd8969d7 100644
--- a/sim/syscall_emul.hh
+++ b/sim/syscall_emul.hh
@@ -40,6 +40,7 @@
 #ifdef __CYGWIN32__
 #include <sys/fcntl.h>	// for O_BINARY
 #endif
+#include <sys/uio.h>
 
 #include "base/intmath.hh"	// for RoundUp
 #include "mem/functional/functional.hh"
@@ -226,6 +227,15 @@ SyscallReturn ftruncateFunc(SyscallDesc *desc, int num,
                             Process *p, ExecContext *xc);
 
 
+/// Target chown() handler.
+SyscallReturn chownFunc(SyscallDesc *desc, int num,
+                        Process *p, ExecContext *xc);
+
+
+/// Target fchown() handler.
+SyscallReturn fchownFunc(SyscallDesc *desc, int num,
+                         Process *p, ExecContext *xc);
+
 /// 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 {
@@ -343,6 +353,59 @@ openFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+/// Target chmod() handler.
+template <class OS>
+SyscallReturn
+chmodFunc(SyscallDesc *desc, int callnum, Process *process,
+          ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    uint32_t mode = xc->getSyscallArg(1);
+    mode_t hostMode = 0;
+
+    // XXX translate mode flags via OS::something???
+    hostMode = mode;
+
+    // do the chmod
+    int result = chmod(path.c_str(), hostMode);
+    if (result < 0)
+        return errno;
+
+    return 0;
+}
+
+
+/// Target fchmod() handler.
+template <class OS>
+SyscallReturn
+fchmodFunc(SyscallDesc *desc, int callnum, Process *process,
+           ExecContext *xc)
+{
+    int fd = xc->getSyscallArg(0);
+    if (fd < 0 || process->sim_fd(fd) < 0) {
+        // doesn't map to any simulator fd: not a valid target fd
+        return -EBADF;
+    }
+
+    uint32_t mode = xc->getSyscallArg(1);
+    mode_t hostMode = 0;
+
+    // XXX translate mode flags via OS::someting???
+    hostMode = mode;
+
+    // do the fchmod
+    int result = fchmod(process->sim_fd(fd), hostMode);
+    if (result < 0)
+        return errno;
+
+    return 0;
+}
+
+
 /// Target stat() handler.
 template <class OS>
 SyscallReturn
@@ -366,6 +429,30 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+/// Target fstat64() handler.
+template <class OS>
+SyscallReturn
+fstat64Func(SyscallDesc *desc, int callnum, Process *process,
+            ExecContext *xc)
+{
+    int fd = xc->getSyscallArg(0);
+    if (fd < 0 || process->sim_fd(fd) < 0) {
+        // doesn't map to any simulator fd: not a valid target fd
+        return -EBADF;
+    }
+
+    struct stat64 hostBuf;
+    int result = fstat64(process->sim_fd(fd), &hostBuf);
+
+    if (result < 0)
+        return errno;
+
+    OS::copyOutStat64Buf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+
+    return 0;
+}
+
+
 /// Target lstat() handler.
 template <class OS>
 SyscallReturn
@@ -388,6 +475,28 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
     return 0;
 }
 
+/// Target lstat64() handler.
+template <class OS>
+SyscallReturn
+lstat64Func(SyscallDesc *desc, int callnum, Process *process,
+            ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    struct stat64 hostBuf;
+    int result = lstat64(path.c_str(), &hostBuf);
+
+    if (result < 0)
+        return -errno;
+
+    OS::copyOutStat64Buf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+
+    return 0;
+}
+
 /// Target fstat() handler.
 template <class OS>
 SyscallReturn
@@ -459,6 +568,46 @@ fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+/// Target writev() handler.
+template <class OS>
+SyscallReturn
+writevFunc(SyscallDesc *desc, int callnum, Process *process,
+           ExecContext *xc)
+{
+    int fd = xc->getSyscallArg(0);
+    if (fd < 0 || process->sim_fd(fd) < 0) {
+        // doesn't map to any simulator fd: not a valid target fd
+        return -EBADF;
+    }
+
+    uint64_t tiov_base = xc->getSyscallArg(1);
+    size_t count = xc->getSyscallArg(2);
+    struct iovec hiov[count];
+    for (int i = 0; i < count; ++i)
+    {
+        typename OS::tgt_iovec tiov;
+        xc->mem->access(Read, tiov_base + i*sizeof(typename OS::tgt_iovec),
+                        &tiov, sizeof(typename OS::tgt_iovec));
+        hiov[i].iov_len = tiov.iov_len;
+        hiov[i].iov_base = new char [hiov[i].iov_len];
+        xc->mem->access(Read, tiov.iov_base,
+                        hiov[i].iov_base, hiov[i].iov_len);
+    }
+
+    int result = writev(process->sim_fd(fd), hiov, count);
+
+    for (int i = 0; i < count; ++i)
+    {
+        delete [] (char *)hiov[i].iov_base;
+    }
+
+    if (result < 0)
+        return errno;
+
+    return 0;
+}
+
+
 /// Target mmap() handler.
 ///
 /// We don't really handle mmap().  If the target is mmaping an
@@ -543,6 +692,34 @@ gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+/// Target utimes() handler.
+template <class OS>
+SyscallReturn
+utimesFunc(SyscallDesc *desc, int callnum, Process *process,
+           ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    TypedBufferArg<typename OS::timeval [2]> tp(xc->getSyscallArg(1));
+    tp.copyIn(xc->mem);
+
+    struct timeval hostTimeval[2];
+    for (int i = 0; i < 2; ++i)
+    {
+        hostTimeval[i].tv_sec = (*tp)[i].tv_sec;
+        hostTimeval[i].tv_usec = (*tp)[i].tv_usec;
+    }
+    int result = utimes(path.c_str(), hostTimeval);
+
+    if (result < 0)
+        return -errno;
+
+    return 0;
+}
+
 /// Target getrusage() function.
 template <class OS>
 SyscallReturn