Merge branch 'main' into clang-tidy

BUILD.bazel

@@ -17,30 +17,12 @@ COPTS = [
     "-Werror=old-style-cast",
 ]
 
-config_setting(
-    name = "qnx",
-    constraint_values = ["@platforms//os:qnx"],
-    values = {
-        "cpu": "x64_qnx",
-    },
-    visibility = [":__subpackages__"],
-)
-
 config_setting(
     name = "windows",
     constraint_values = ["@platforms//os:windows"],
-    values = {
-        "cpu": "x64_windows",
-    },
     visibility = [":__subpackages__"],
 )
 
-config_setting(
-    name = "macos",
-    constraint_values = ["@platforms//os:macos"],
-    visibility = ["//visibility:public"],
-)
-
 config_setting(
     name = "perfcounters",
     define_values = {

src/cycleclock.h

@@ -229,6 +229,16 @@ inline BENCHMARK_ALWAYS_INLINE int64_t Now() {
   struct timeval tv;
   gettimeofday(&tv, nullptr);
   return static_cast<int64_t>(tv.tv_sec) * 1000000 + tv.tv_usec;
+#elif defined(__hppa__)
+  // HP PA-RISC provides a user-readable clock counter (cr16), but
+  // it's not syncronized across CPUs and only 32-bit wide when programs
+  // are built as 32-bit binaries.
+  // Use clock_gettime(CLOCK_MONOTONIC, ...) instead of gettimeofday
+  // because is provides nanosecond resolution.
+  // Initialize to always return 0 if clock_gettime fails.
+  struct timespec ts = {0, 0};
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+  return static_cast<int64_t>(ts.tv_sec) * 1000000000 + ts.tv_nsec;
 #else
   // The soft failover to a generic implementation is automatic only for ARM.
   // For other platforms the developer is expected to make an attempt to create