cpu: Fix retry bug in MinorCPU LSQ

[gem5.git] / src / sim / syscall_emul.hh

diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index 0c06a514712fce3465fcf7e27a4b766fec68640e..cc430b9492b1c881219f613077887e5bed856594 100644 (file)
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -195,6 +195,9 @@ SyscallReturn readlinkFunc(SyscallDesc *desc, int num,
                            LiveProcess *p, ThreadContext *tc);
 
 /// Target unlink() handler.
+SyscallReturn unlinkHelper(SyscallDesc *desc, int num,
+                           LiveProcess *p, ThreadContext *tc,
+                           int index);
 SyscallReturn unlinkFunc(SyscallDesc *desc, int num,
                          LiveProcess *p, ThreadContext *tc);
 
@@ -655,6 +658,20 @@ openatFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     return openFunc<OS>(desc, callnum, process, tc, 1);
 }
 
+/// Target unlinkat() handler.
+template <class OS>
+SyscallReturn
+unlinkatFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+             ThreadContext *tc)
+{
+    int index = 0;
+    int dirfd = process->getSyscallArg(tc, index);
+    if (dirfd != OS::TGT_AT_FDCWD)
+        warn("unlinkat: first argument not AT_FDCWD; unlikely to work");
+
+    return unlinkHelper(desc, callnum, process, tc, 1);
+}
+
 /// Target facessat() handler
 template <class OS>
 SyscallReturn