[Lldb-commits] [lldb] [lldb][API] Add Find(Ranges)InMemory() to Process SB API (PR #95007)

Greg Clayton via lldb-commits lldb-commits at lists.llvm.org
Mon Jun 10 14:04:32 PDT 2024


================
@@ -810,6 +809,65 @@ const char *SBProcess::GetBroadcasterClass() {
   return ConstString(Process::GetStaticBroadcasterClass()).AsCString();
 }
 
+lldb::SBAddressRangeList
+SBProcess::FindRangesInMemory(const void *buf, uint64_t size,
+                              SBAddressRangeList &ranges, uint32_t alignment,
+                              uint32_t max_matches, SBError &error) {
+  LLDB_INSTRUMENT_VA(this, buf, size, ranges, alignment, max_matches, error);
+
+  Log *log = GetLog(LLDBLog::Process);
+  lldb::SBAddressRangeList matches;
+
+  ProcessSP process_sp(GetSP());
+  if (!process_sp) {
+    LLDB_LOGF(log, "SBProcess::%s SBProcess is invalid.", __FUNCTION__);
+    return matches;
+  }
+  Process::StopLocker stop_locker;
+  if (!stop_locker.TryLock(&process_sp->GetRunLock())) {
+    LLDB_LOGF(
+        log,
+        "SBProcess::%s Cannot find process in memory while process is running.",
+        __FUNCTION__);
+    return matches;
+  }
+  std::lock_guard<std::recursive_mutex> guard(
+      process_sp->GetTarget().GetAPIMutex());
+  matches.m_opaque_up->ref() = process_sp->FindRangesInMemory(
+      reinterpret_cast<const uint8_t *>(buf), size, ranges.m_opaque_up->ref(),
+      alignment, max_matches, error.ref());
+  return matches;
+}
+
+lldb::addr_t SBProcess::FindInMemory(const void *buf, uint64_t size,
+                                     SBAddressRange &range, uint32_t alignment,
+                                     SBError &error) {
+  LLDB_INSTRUMENT_VA(this, buf, size, range, alignment, error);
+
+  if (!range.IsValid()) {
+    error.SetErrorStringWithFormat("range is invalid");
+    return LLDB_INVALID_ADDRESS;
+  }
+
----------------
clayborg wrote:

Let the `lldb_private::Process::FindInMemory` handle this error so the error is always consistent instead of duplicating it here.

https://github.com/llvm/llvm-project/pull/95007


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