Fix some buck2 build errors

Summary:
Fix some issues w/ the rules/deps where we weren't properly
attaching all required headers to rules, preventing RE from working.

This fixes the buck2 build for  the `opt4ml` contbuild.

Reviewed By: rahulg

Differential Revision: D52168385

fbshipit-source-id: 12a79b91142c8ef21c75c33ffa5056bb9be184ba

flashlight/fl/common/Logging.cpp

@@ -6,12 +6,12 @@
  */
 
 #include <array>
+#include <inttypes.h>
 #include <stdexcept>
 #include <thread>
 #include <utility>
 
 #include "flashlight/fl/common/Logging.h"
-#include "flashlight/fl/common/Utils.h"
 #include "flashlight/fl/common/stacktrace/Backward.h"
 
 namespace fl {
@@ -46,6 +46,40 @@ std::string getFileName(const std::string& path) {
   return path.substr(separatorIndex + 1, path.length() - separatorIndex);
 }
 
+// Returns high resolution time formatted as:
+// MMDD HH MM SS UUUUUU
+// 0206 08:42:42.123456
+std::string dateTimeWithMicroSeconds() {
+  auto systemTime = std::chrono::system_clock::now();
+  const time_t secondsSinceEpoc =
+      std::chrono::system_clock::to_time_t(systemTime);
+  const struct tm* timeinfo = localtime(&secondsSinceEpoc);
+
+  // Formate date and time to the seconds as:
+  // MMDD HH MM SS
+  // 1231 08:42:42
+  constexpr size_t bufferSize = 50;
+  char buffer[bufferSize];
+  const size_t nWrittenBytes = std::strftime(buffer, 30, "%m%d %T", timeinfo);
+  if (!nWrittenBytes) {
+    return "getTime() failed to format time";
+  }
+
+  const std::chrono::system_clock::time_point timeInSecondsResolution =
+      std::chrono::system_clock::from_time_t(secondsSinceEpoc);
+  const auto usec = std::chrono::duration_cast<std::chrono::microseconds>(
+      systemTime - timeInSecondsResolution);
+
+  // Add msec and usec.
+  std::snprintf(
+      buffer + nWrittenBytes,
+      bufferSize - nWrittenBytes,
+      ".%06" PRId64,
+      static_cast<int64_t>(usec.count()));
+
+  return buffer;
+}
+
 void addContext(
     const char* fullPath,
     int lineNumber,

flashlight/fl/common/Utils.cpp

@@ -26,37 +26,6 @@ bool f16Supported() {
   return defaultTensorBackend().isDataTypeSupported(fl::dtype::f16);
 }
 
-std::string dateTimeWithMicroSeconds() {
-  auto systemTime = std::chrono::system_clock::now();
-  const time_t secondsSinceEpoc =
-      std::chrono::system_clock::to_time_t(systemTime);
-  const struct tm* timeinfo = localtime(&secondsSinceEpoc);
-
-  // Formate date and time to the seconds as:
-  // MMDD HH MM SS
-  // 1231 08:42:42
-  constexpr size_t bufferSize = 50;
-  char buffer[bufferSize];
-  const size_t nWrittenBytes = std::strftime(buffer, 30, "%m%d %T", timeinfo);
-  if (!nWrittenBytes) {
-    return "getTime() failed to format time";
-  }
-
-  const std::chrono::system_clock::time_point timeInSecondsResolution =
-      std::chrono::system_clock::from_time_t(secondsSinceEpoc);
-  const auto usec = std::chrono::duration_cast<std::chrono::microseconds>(
-      systemTime - timeInSecondsResolution);
-
-  // Add msec and usec.
-  std::snprintf(
-      buffer + nWrittenBytes,
-      bufferSize - nWrittenBytes,
-      ".%06" PRId64,
-      static_cast<int64_t>(usec.count()));
-
-  return buffer;
-}
-
 size_t divRoundUp(size_t numerator, size_t denominator) {
   if (!numerator) {
     return 0;

flashlight/fl/common/Utils.h

@@ -29,11 +29,6 @@ class Tensor;
  */
 FL_API bool f16Supported();
 
-// Returns high resolution time formatted as:
-// MMDD HH MM SS UUUUUU
-// 0206 08:42:42.123456
-FL_API std::string dateTimeWithMicroSeconds();
-
 // Returns round-up result of integer division.
 // throws invalid_argument exception on zero denominator.
 FL_API size_t divRoundUp(size_t numerator, size_t denominator);