diff --git a/config.m4 b/config.m4
index 59402cb4169bc..d615d7c3d65f1 100644
--- a/config.m4
+++ b/config.m4
@@ -912,16 +912,74 @@ if test "$PHP_GRPC" != "no"; then
     src/php/ext/grpc/server_credentials.c \
     src/php/ext/grpc/timeval.c \
     third_party/abseil-cpp/absl/base/internal/cycleclock.cc \
+    third_party/abseil-cpp/absl/base/internal/low_level_alloc.cc \
+    third_party/abseil-cpp/absl/base/internal/raw_logging.cc \
     third_party/abseil-cpp/absl/base/internal/spinlock.cc \
+    third_party/abseil-cpp/absl/base/internal/spinlock_wait.cc \
+    third_party/abseil-cpp/absl/base/internal/strerror.cc \
     third_party/abseil-cpp/absl/base/internal/sysinfo.cc \
     third_party/abseil-cpp/absl/base/internal/thread_identity.cc \
+    third_party/abseil-cpp/absl/base/internal/throw_delegate.cc \
     third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc \
     third_party/abseil-cpp/absl/base/log_severity.cc \
+    third_party/abseil-cpp/absl/container/internal/hashtablez_sampler.cc \
+    third_party/abseil-cpp/absl/container/internal/hashtablez_sampler_force_weak_definition.cc \
+    third_party/abseil-cpp/absl/container/internal/raw_hash_set.cc \
+    third_party/abseil-cpp/absl/crc/crc32c.cc \
+    third_party/abseil-cpp/absl/crc/internal/cpu_detect.cc \
+    third_party/abseil-cpp/absl/crc/internal/crc.cc \
+    third_party/abseil-cpp/absl/crc/internal/crc_cord_state.cc \
+    third_party/abseil-cpp/absl/crc/internal/crc_memcpy_fallback.cc \
+    third_party/abseil-cpp/absl/crc/internal/crc_memcpy_x86_arm_combined.cc \
+    third_party/abseil-cpp/absl/crc/internal/crc_non_temporal_memcpy.cc \
+    third_party/abseil-cpp/absl/crc/internal/crc_x86_arm_combined.cc \
+    third_party/abseil-cpp/absl/debugging/internal/address_is_readable.cc \
+    third_party/abseil-cpp/absl/debugging/internal/decode_rust_punycode.cc \
+    third_party/abseil-cpp/absl/debugging/internal/demangle.cc \
+    third_party/abseil-cpp/absl/debugging/internal/demangle_rust.cc \
+    third_party/abseil-cpp/absl/debugging/internal/elf_mem_image.cc \
+    third_party/abseil-cpp/absl/debugging/internal/examine_stack.cc \
+    third_party/abseil-cpp/absl/debugging/internal/utf8_for_code_point.cc \
+    third_party/abseil-cpp/absl/debugging/internal/vdso_support.cc \
+    third_party/abseil-cpp/absl/debugging/stacktrace.cc \
+    third_party/abseil-cpp/absl/debugging/symbolize.cc \
+    third_party/abseil-cpp/absl/flags/commandlineflag.cc \
+    third_party/abseil-cpp/absl/flags/internal/commandlineflag.cc \
+    third_party/abseil-cpp/absl/flags/internal/flag.cc \
+    third_party/abseil-cpp/absl/flags/internal/private_handle_accessor.cc \
+    third_party/abseil-cpp/absl/flags/internal/program_name.cc \
     third_party/abseil-cpp/absl/flags/marshalling.cc \
+    third_party/abseil-cpp/absl/flags/reflection.cc \
+    third_party/abseil-cpp/absl/flags/usage_config.cc \
+    third_party/abseil-cpp/absl/hash/internal/city.cc \
     third_party/abseil-cpp/absl/hash/internal/hash.cc \
+    third_party/abseil-cpp/absl/hash/internal/low_level_hash.cc \
     third_party/abseil-cpp/absl/log/globals.cc \
+    third_party/abseil-cpp/absl/log/internal/check_op.cc \
+    third_party/abseil-cpp/absl/log/internal/conditions.cc \
+    third_party/abseil-cpp/absl/log/internal/fnmatch.cc \
+    third_party/abseil-cpp/absl/log/internal/globals.cc \
+    third_party/abseil-cpp/absl/log/internal/log_format.cc \
+    third_party/abseil-cpp/absl/log/internal/log_message.cc \
+    third_party/abseil-cpp/absl/log/internal/log_sink_set.cc \
+    third_party/abseil-cpp/absl/log/internal/nullguard.cc \
+    third_party/abseil-cpp/absl/log/internal/proto.cc \
+    third_party/abseil-cpp/absl/log/internal/vlog_config.cc \
+    third_party/abseil-cpp/absl/log/log_entry.cc \
+    third_party/abseil-cpp/absl/log/log_sink.cc \
+    third_party/abseil-cpp/absl/numeric/int128.cc \
+    third_party/abseil-cpp/absl/profiling/internal/exponential_biased.cc \
     third_party/abseil-cpp/absl/random/discrete_distribution.cc \
     third_party/abseil-cpp/absl/random/gaussian_distribution.cc \
+    third_party/abseil-cpp/absl/random/internal/pool_urbg.cc \
+    third_party/abseil-cpp/absl/random/internal/randen.cc \
+    third_party/abseil-cpp/absl/random/internal/randen_detect.cc \
+    third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc \
+    third_party/abseil-cpp/absl/random/internal/randen_round_keys.cc \
+    third_party/abseil-cpp/absl/random/internal/randen_slow.cc \
+    third_party/abseil-cpp/absl/random/internal/seed_material.cc \
+    third_party/abseil-cpp/absl/random/seed_gen_exception.cc \
+    third_party/abseil-cpp/absl/random/seed_sequences.cc \
     third_party/abseil-cpp/absl/status/internal/status_internal.cc \
     third_party/abseil-cpp/absl/status/status.cc \
     third_party/abseil-cpp/absl/status/status_payload_printer.cc \
@@ -934,19 +992,40 @@ if test "$PHP_GRPC" != "no"; then
     third_party/abseil-cpp/absl/strings/escaping.cc \
     third_party/abseil-cpp/absl/strings/internal/charconv_bigint.cc \
     third_party/abseil-cpp/absl/strings/internal/charconv_parse.cc \
+    third_party/abseil-cpp/absl/strings/internal/cord_internal.cc \
+    third_party/abseil-cpp/absl/strings/internal/cord_rep_btree.cc \
+    third_party/abseil-cpp/absl/strings/internal/cord_rep_btree_navigator.cc \
+    third_party/abseil-cpp/absl/strings/internal/cord_rep_btree_reader.cc \
+    third_party/abseil-cpp/absl/strings/internal/cord_rep_consume.cc \
+    third_party/abseil-cpp/absl/strings/internal/cord_rep_crc.cc \
+    third_party/abseil-cpp/absl/strings/internal/cordz_functions.cc \
+    third_party/abseil-cpp/absl/strings/internal/cordz_handle.cc \
+    third_party/abseil-cpp/absl/strings/internal/cordz_info.cc \
     third_party/abseil-cpp/absl/strings/internal/damerau_levenshtein_distance.cc \
+    third_party/abseil-cpp/absl/strings/internal/escaping.cc \
     third_party/abseil-cpp/absl/strings/internal/memutil.cc \
+    third_party/abseil-cpp/absl/strings/internal/ostringstream.cc \
+    third_party/abseil-cpp/absl/strings/internal/str_format/arg.cc \
+    third_party/abseil-cpp/absl/strings/internal/str_format/bind.cc \
+    third_party/abseil-cpp/absl/strings/internal/str_format/extension.cc \
+    third_party/abseil-cpp/absl/strings/internal/str_format/float_conversion.cc \
+    third_party/abseil-cpp/absl/strings/internal/str_format/output.cc \
+    third_party/abseil-cpp/absl/strings/internal/str_format/parser.cc \
     third_party/abseil-cpp/absl/strings/internal/stringify_sink.cc \
+    third_party/abseil-cpp/absl/strings/internal/utf8.cc \
     third_party/abseil-cpp/absl/strings/match.cc \
     third_party/abseil-cpp/absl/strings/numbers.cc \
     third_party/abseil-cpp/absl/strings/str_cat.cc \
     third_party/abseil-cpp/absl/strings/str_replace.cc \
     third_party/abseil-cpp/absl/strings/str_split.cc \
+    third_party/abseil-cpp/absl/strings/string_view.cc \
     third_party/abseil-cpp/absl/strings/substitute.cc \
     third_party/abseil-cpp/absl/synchronization/barrier.cc \
     third_party/abseil-cpp/absl/synchronization/blocking_counter.cc \
     third_party/abseil-cpp/absl/synchronization/internal/create_thread_identity.cc \
     third_party/abseil-cpp/absl/synchronization/internal/futex_waiter.cc \
+    third_party/abseil-cpp/absl/synchronization/internal/graphcycles.cc \
+    third_party/abseil-cpp/absl/synchronization/internal/kernel_timeout.cc \
     third_party/abseil-cpp/absl/synchronization/internal/per_thread_sem.cc \
     third_party/abseil-cpp/absl/synchronization/internal/pthread_waiter.cc \
     third_party/abseil-cpp/absl/synchronization/internal/sem_waiter.cc \
@@ -959,7 +1038,19 @@ if test "$PHP_GRPC" != "no"; then
     third_party/abseil-cpp/absl/time/clock.cc \
     third_party/abseil-cpp/absl/time/duration.cc \
     third_party/abseil-cpp/absl/time/format.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/civil_time_detail.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_fixed.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_format.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_if.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_impl.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_info.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_libc.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_lookup.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.cc \
+    third_party/abseil-cpp/absl/time/internal/cctz/src/zone_info_source.cc \
     third_party/abseil-cpp/absl/time/time.cc \
+    third_party/abseil-cpp/absl/types/bad_optional_access.cc \
+    third_party/abseil-cpp/absl/types/bad_variant_access.cc \
     third_party/address_sorting/address_sorting.c \
     third_party/address_sorting/address_sorting_posix.c \
     third_party/address_sorting/address_sorting_windows.c \
@@ -1559,17 +1650,30 @@ if test "$PHP_GRPC" != "no"; then
   PHP_ADD_BUILD_DIR($ext_builddir/src/php/ext/grpc)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/base)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/base/internal)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/container/internal)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/crc)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/crc/internal)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/debugging)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/debugging/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/flags)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/flags/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/hash/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/log)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/log/internal)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/numeric)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/profiling/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/random)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/random/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/status)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/status/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/strings)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/strings/internal)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/strings/internal/str_format)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/synchronization)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/synchronization/internal)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/time)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/time/internal/cctz/src)
+  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/types)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/address_sorting)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl-with-bazel/src/crypto)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl-with-bazel/src/crypto/asn1)
diff --git a/tools/artifact_gen/metadata_for_wrapped_languages.cc b/tools/artifact_gen/metadata_for_wrapped_languages.cc
index f02ed9a88d5ae..0376e099ea7c0 100644
--- a/tools/artifact_gen/metadata_for_wrapped_languages.cc
+++ b/tools/artifact_gen/metadata_for_wrapped_languages.cc
@@ -24,6 +24,7 @@
 #include "absl/strings/numbers.h"
 #include "absl/strings/str_cat.h"
 #include "absl/strings/str_split.h"
+#include "absl/strings/str_join.h"
 #include "utils.h"
 
 namespace {
@@ -55,8 +56,6 @@ void AddPhpConfig(nlohmann::json& config) {
       const nlohmann::json* lib = it->second;
       std::vector<std::string> src = (*lib)["src"];
       srcs.insert(src.begin(), src.end());
-    } else {
-      LOG(INFO) << "php not found " << dep;
     }
   }
   config["php_config_m4"]["srcs"] = srcs;
@@ -141,8 +140,7 @@ void AddBoringSslMetadata(nlohmann::json& metadata) {
         file_list({"ssl_headers", "ssl_internal_headers", "crypto_headers",
                    "crypto_internal_headers", "fips_fragments"})},
        {"boringssl", true},
-       {"defaults", "boringssl"},
-       {"transitive_deps", nlohmann::json::array()}});
+       {"defaults", "boringssl"}});
   metadata["libs"].push_back({{"name", "boringssl_test_util"},
                               {"build", "private"},
                               {"language", "c++"},
@@ -186,11 +184,61 @@ void AddAbseilMetadata(nlohmann::json& config) {
     config["libs"].push_back(build);
   }
 }
+
+class TransitiveDepsCalculator {
+public:
+  void DeclareDeps(std::string name, std::set<std::string> deps) {
+    auto& dst = deps_[name];
+    for (const auto& dep : deps) dst.insert(dep);
+  }
+
+  std::set<std::string> Calculate(std::string which) {
+    std::set<std::string> deps;
+    Fill(which, &deps);
+    return deps;
+  }
+
+private:
+  void Fill(std::string which, std::set<std::string>* out) {
+    auto it = deps_.find(which);
+    if (it == deps_.end()) return;
+    for (const auto& dep : it->second) {
+      if (out->emplace(dep).second) {
+        Fill(dep, out);
+      }
+    }
+  }
+
+  std::map<std::string, std::set<std::string>> deps_;
+};
+
+void ExpandTransitiveDeps(nlohmann::json& config) {
+  TransitiveDepsCalculator calc;
+  for (auto& lib : config["libs"]) {
+    calc.DeclareDeps(lib["name"], {});
+    auto grab = [&lib, &calc](std::string tag) {
+      auto value = lib[tag];
+      if (!value.is_array()) {
+        if (!value.is_null()) {
+          LOG(INFO) << lib["name"] << " " << tag << " " << value;
+        }
+        return;
+      }
+      calc.DeclareDeps(lib["name"], value);
+    };
+    grab("transitive_deps");
+    grab("deps");
+  }
+  for (auto& lib : config["libs"]) {
+    lib["transitive_deps"] = calc.Calculate(lib["name"]);
+  }
+}
 }  // namespace
 
 void AddMetadataForWrappedLanguages(nlohmann::json& config) {
   AddBoringSslMetadata(config);
   AddAbseilMetadata(config);
+  ExpandTransitiveDeps(config);
   AddPhpConfig(config);
   ExpandVersion(config);
 }