syscall_emul: implement fallocate
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index e62a868..9c3f50b 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -935,6 +935,27 @@
}
SyscallReturn
+fallocateFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+ ThreadContext *tc)
+{
+ int index = 0;
+ int tgt_fd = process->getSyscallArg(tc, index);
+ int mode = process->getSyscallArg(tc, index);
+ off_t offset = process->getSyscallArg(tc, index);
+ off_t len = process->getSyscallArg(tc, index);
+
+ int sim_fd = process->getSimFD(tgt_fd);
+ if (sim_fd < 0)
+ return -EBADF;
+
+ int result = fallocate(sim_fd, mode, offset, len);
+ if (result < 0)
+ return -errno;
+
+ return 0;
+}
+
+SyscallReturn
accessFunc(SyscallDesc *desc, int callnum, LiveProcess *p, ThreadContext *tc,
int index)
{
