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-rw-r--r--absl/random/internal/BUILD.bazel1
-rw-r--r--absl/random/internal/randen_slow.cc30
-rw-r--r--absl/strings/internal/cordz_functions.cc14
3 files changed, 30 insertions, 15 deletions
diff --git a/absl/random/internal/BUILD.bazel b/absl/random/internal/BUILD.bazel
index cf6b5389..8420b5c5 100644
--- a/absl/random/internal/BUILD.bazel
+++ b/absl/random/internal/BUILD.bazel
@@ -297,6 +297,7 @@ cc_library(
":platform",
"//absl/base:config",
"//absl/base:core_headers",
+ "//absl/base:endian",
"//absl/numeric:int128",
],
)
diff --git a/absl/random/internal/randen_slow.cc b/absl/random/internal/randen_slow.cc
index 56aeb030..d5c9347b 100644
--- a/absl/random/internal/randen_slow.cc
+++ b/absl/random/internal/randen_slow.cc
@@ -19,6 +19,7 @@
#include <cstring>
#include "absl/base/attributes.h"
+#include "absl/base/internal/endian.h"
#include "absl/numeric/int128.h"
#include "absl/random/internal/platform.h"
#include "absl/random/internal/randen_traits.h"
@@ -40,7 +41,7 @@ namespace {
// AES portions based on rijndael-alg-fst.c,
// https://fastcrypto.org/front/misc/rijndael-alg-fst.c, and modified for
-// little-endianness.
+// platform-endianness.
//
// Implementation of
// http://www.csrc.nist.gov/publications/fips/fips197/fips-197.pdf
@@ -251,6 +252,7 @@ inline ABSL_RANDOM_INTERNAL_ATTRIBUTE_ALWAYS_INLINE void Vector128Store(
inline ABSL_RANDOM_INTERNAL_ATTRIBUTE_ALWAYS_INLINE Vector128
AesRound(const Vector128& state, const Vector128& round_key) {
Vector128 result;
+#ifdef ABSL_IS_LITTLE_ENDIAN
result.s[0] = round_key.s[0] ^ //
te0[uint8_t(state.s[0])] ^ //
te1[uint8_t(state.s[1] >> 8)] ^ //
@@ -271,6 +273,28 @@ AesRound(const Vector128& state, const Vector128& round_key) {
te1[uint8_t(state.s[0] >> 8)] ^ //
te2[uint8_t(state.s[1] >> 16)] ^ //
te3[uint8_t(state.s[2] >> 24)];
+#else
+ result.s[0] = round_key.s[0] ^ //
+ te0[uint8_t(state.s[0])] ^ //
+ te1[uint8_t(state.s[3] >> 8)] ^ //
+ te2[uint8_t(state.s[2] >> 16)] ^ //
+ te3[uint8_t(state.s[1] >> 24)];
+ result.s[1] = round_key.s[1] ^ //
+ te0[uint8_t(state.s[1])] ^ //
+ te1[uint8_t(state.s[0] >> 8)] ^ //
+ te2[uint8_t(state.s[3] >> 16)] ^ //
+ te3[uint8_t(state.s[2] >> 24)];
+ result.s[2] = round_key.s[2] ^ //
+ te0[uint8_t(state.s[2])] ^ //
+ te1[uint8_t(state.s[1] >> 8)] ^ //
+ te2[uint8_t(state.s[0] >> 16)] ^ //
+ te3[uint8_t(state.s[3] >> 24)];
+ result.s[3] = round_key.s[3] ^ //
+ te0[uint8_t(state.s[3])] ^ //
+ te1[uint8_t(state.s[2] >> 8)] ^ //
+ te2[uint8_t(state.s[1] >> 16)] ^ //
+ te3[uint8_t(state.s[0] >> 24)];
+#endif
return result;
}
@@ -380,7 +404,11 @@ namespace random_internal {
const void* RandenSlow::GetKeys() {
// Round keys for one AES per Feistel round and branch.
// The canonical implementation uses first digits of Pi.
+#ifdef ABSL_IS_LITTLE_ENDIAN
return kRandenRoundKeys;
+#else
+ return kRandenRoundKeysBE;
+#endif
}
void RandenSlow::Absorb(const void* seed_void, void* state_void) {
diff --git a/absl/strings/internal/cordz_functions.cc b/absl/strings/internal/cordz_functions.cc
index f30080f8..48369933 100644
--- a/absl/strings/internal/cordz_functions.cc
+++ b/absl/strings/internal/cordz_functions.cc
@@ -24,13 +24,6 @@
#include "absl/base/internal/exponential_biased.h"
#include "absl/base/internal/raw_logging.h"
-// TODO(b/162942788): weak 'cordz_disabled' value.
-// A strong version is in the 'cordz_disabled_hack_for_odr' library which can
-// be linked in to disable cordz at compile time.
-extern "C" {
-bool absl_internal_cordz_disabled ABSL_ATTRIBUTE_WEAK = false;
-}
-
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace cord_internal {
@@ -54,13 +47,6 @@ ABSL_CONST_INIT thread_local int64_t cordz_next_sample = kInitCordzNextSample;
constexpr int64_t kIntervalIfDisabled = 1 << 16;
ABSL_ATTRIBUTE_NOINLINE bool cordz_should_profile_slow() {
- // TODO(b/162942788): check if profiling is disabled at compile time.
- if (absl_internal_cordz_disabled) {
- ABSL_RAW_LOG(WARNING, "Cordz info disabled at compile time");
- // We are permanently disabled: set counter to highest possible value.
- cordz_next_sample = std::numeric_limits<int64_t>::max();
- return false;
- }
thread_local absl::base_internal::ExponentialBiased
exponential_biased_generator;