================
@@ -132,6 +140,95 @@ class MinidumpFile : public Binary {
size_t Stride;
};
+ /// Class the provides an iterator over the memory64 memory ranges. Only the
+ /// the first descriptor is validated as readable beforehand.
+ class Memory64Iterator {
+ public:
+ static Memory64Iterator
+ begin(ArrayRef<uint8_t> Storage,
+ ArrayRef<minidump::MemoryDescriptor_64> Descriptors,
+ uint64_t BaseRVA) {
+ return Memory64Iterator(Storage, Descriptors, BaseRVA);
+ }
+
+ static Memory64Iterator end() { return Memory64Iterator(); }
+
+ std::pair<minidump::MemoryDescriptor_64, ArrayRef<uint8_t>> Current;
+
+ bool operator==(const Memory64Iterator &R) const {
+ return IsEnd == R.IsEnd;
+ }
+
+ bool operator!=(const Memory64Iterator &R) const { return !(*this == R); }
+
+ const std::pair<minidump::MemoryDescriptor_64, ArrayRef<uint8_t>> &
+ operator*() {
+ return Current;
+ }
+
+ const std::pair<minidump::MemoryDescriptor_64, ArrayRef<uint8_t>> *
+ operator&() {
+ return &Current;
+ }
+
+ Error inc() {
+ if (Storage.size() == 0 || Descriptors.size() == 0)
+ return make_error<GenericBinaryError>("No Memory64List Stream",
+ object_error::parse_failed);
+
+ if (Index >= Descriptors.size())
+ return createError("Can't read past of Memory64List Stream");
+
+ const minidump::MemoryDescriptor_64 &Descriptor = Descriptors[Index];
+ if (RVA + Descriptor.DataSize > Storage.size())
+ return make_error<GenericBinaryError>(
+ "Memory64 Descriptor exceeds end of file.",
+ object_error::unexpected_eof);
+
+ ArrayRef<uint8_t> Content = Storage.slice(RVA, Descriptor.DataSize);
+ Current = std::make_pair(Descriptor, Content);
+ Index++;
+ RVA += Descriptor.DataSize;
+ if (Index >= Descriptors.size())
+ IsEnd = true;
+ return Error::success();
+ }
+
+ private:
+ // This constructor will only happen after a validation check to see
+ // if the first descriptor is readable.
+ Memory64Iterator(ArrayRef<uint8_t> Storage,
+ ArrayRef<minidump::MemoryDescriptor_64> Descriptors,
+ uint64_t BaseRVA)
+ : RVA(BaseRVA), Storage(Storage), Descriptors(Descriptors),
+ IsEnd(false) {
+ assert(Descriptors.size() > 0);
+ assert(Storage.size() >= BaseRVA + Descriptors.front().DataSize);
----------------
labath wrote:
Okay, that's fine.
https://github.com/llvm/llvm-project/pull/101272
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