make eval_libc functions ICE on any problem

[rust.git] / src / etc / gdb_providers.py

diff --git a/src/etc/gdb_providers.py b/src/etc/gdb_providers.py
index c351c3450f582d630e7d4708728ce71a336c3431..32b8d8e24c65245efb100e6997948e1942aa3706 100644 (file)
--- a/src/etc/gdb_providers.py
+++ b/src/etc/gdb_providers.py
@@ -144,20 +144,16 @@ class StdVecDequeProvider:
     def __init__(self, valobj):
         self.valobj = valobj
         self.head = int(valobj["head"])
-        self.tail = int(valobj["tail"])
+        self.size = int(valobj["len"])
         self.cap = int(valobj["buf"]["cap"])
         self.data_ptr = unwrap_unique_or_non_null(valobj["buf"]["ptr"])
-        if self.head >= self.tail:
-            self.size = self.head - self.tail
-        else:
-            self.size = self.cap + self.head - self.tail
 
     def to_string(self):
         return "VecDeque(size={})".format(self.size)
 
     def children(self):
         return _enumerate_array_elements(
-            (self.data_ptr + ((self.tail + index) % self.cap)) for index in xrange(self.size)
+            (self.data_ptr + ((self.head + index) % self.cap)) for index in xrange(self.size)
         )
 
     @staticmethod