================
@@ -2007,6 +2007,135 @@ size_t Process::ReadMemory(addr_t addr, void *buf,
size_t size, Status &error) {
}
}
+void Process::DoFindInMemory(lldb::addr_t start_addr, lldb::addr_t end_addr,
+ const uint8_t *buf, size_t size,
+ AddressRanges &matches, size_t alignment,
+ size_t max_matches) {
+ // Inputs are already validated in FindInMemory() functions.
+ assert(buf != nullptr);
+ assert(size > 0);
+ assert(alignment > 0);
+ assert(max_matches > 0);
+ assert(start_addr != LLDB_INVALID_ADDRESS);
+ assert(end_addr != LLDB_INVALID_ADDRESS);
+ assert(start_addr < end_addr);
+
+ lldb::addr_t start = start_addr;
+ if (alignment > 1) {
+ // Align to an address alignment boundary
+ const uint64_t align_offset = start % alignment;
+ if (align_offset > 0)
+ start += alignment - align_offset;
+ }
+ while (matches.size() < max_matches && (start + size) < end_addr) {
+ const lldb::addr_t found_addr = FindInMemory(start, end_addr, buf, size);
+ if (found_addr == LLDB_INVALID_ADDRESS)
+ break;
+
+ if (found_addr % alignment) {
+ ++start;
+ continue;
+ }
+
+ matches.emplace_back(found_addr, size);
+ start = found_addr + alignment;
+ }
+}
+
+AddressRanges Process::FindRangesInMemory(const uint8_t *buf, uint64_t size,
+ const AddressRanges &ranges,
+ size_t alignment, size_t max_matches,
+ Status &error) {
+ AddressRanges matches;
+ if (buf == nullptr) {
+ error.SetErrorString("buffer is null");
+ return matches;
+ }
+ if (size == 0) {
+ error.SetErrorString("buffer size is zero");
+ return matches;
+ }
+ if (ranges.empty()) {
+ error.SetErrorString("empty ranges");
+ return matches;
+ }
+ if (alignment == 0) {
+ error.SetErrorString("alignment must be greater than zero");
+ return matches;
+ }
+ if (max_matches == 0) {
+ error.SetErrorString("max_matches must be greater than zero");
+ return matches;
+ }
+
+ int resolved_ranges = 0;
+ Target &target = GetTarget();
+ for (size_t i = 0; i < ranges.size(); ++i) {
+ if (matches.size() >= max_matches) {
+ break;
+ }
+ const AddressRange &range = ranges[i];
+ if (range.IsValid() == false) {
+ continue;
+ }
----------------
clayborg wrote:
remove single if statement '{}' per llvm coding guidelines
https://github.com/llvm/llvm-project/pull/95007
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