Add dup() support (from Antti Miettinen).
--HG--
extra : convert_revision : 72c834666afa3c353da026617ad5e7a762eb645f
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index e728906..cf90d8f 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -301,6 +301,19 @@
SyscallReturn
+dupFunc(SyscallDesc *desc, int num, Process *process, ThreadContext *tc)
+{
+ int fd = process->sim_fd(tc->getSyscallArg(0));
+
+ if (fd < 0)
+ return -EBADF;
+
+ int result = dup(fd);
+ return (result == -1) ? -errno : process->alloc_fd(result);
+}
+
+
+SyscallReturn
fcntlFunc(SyscallDesc *desc, int num, Process *process,
ThreadContext *tc)
{
