diff --git a/BUILD b/BUILD
index a1a9c395447..1b1a4ef5081 100644
--- a/BUILD
+++ b/BUILD
@@ -4000,26 +4000,6 @@ grpc_cc_library(
     ],
 )
 
-grpc_cc_library(
-    name = "subprocess",
-    srcs = [
-        "//src/core:lib/gpr/subprocess_posix.cc",
-        "//src/core:lib/gpr/subprocess_windows.cc",
-    ],
-    hdrs = [
-        "//src/core:lib/gpr/subprocess.h",
-    ],
-    external_deps = [
-        "absl/strings",
-        "absl/types:span",
-    ],
-    deps = [
-        "gpr",
-        "//src/core:strerror",
-        "//src/core:tchar",
-    ],
-)
-
 # TODO(yashykt): Remove the UPB definitions from here once they are no longer needed
 ### UPB Targets
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f2b7f516196..0392d456561 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3281,6 +3281,8 @@ add_library(benchmark_helpers
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   test/cpp/microbenchmarks/helpers.cc
 )
@@ -3998,8 +4000,6 @@ endif()
 if(gRPC_BUILD_TESTS)
 
 add_library(grpc++_test_util
-  src/core/lib/gpr/subprocess_posix.cc
-  src/core/lib/gpr/subprocess_windows.cc
   test/core/end2end/data/client_certs.cc
   test/core/end2end/data/server1_cert.cc
   test/core/end2end/data/server1_key.cc
@@ -4013,6 +4013,8 @@ add_library(grpc++_test_util
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   test/cpp/util/byte_buffer_proto_helper.cc
   test/cpp/util/create_test_channel.cc
@@ -5033,6 +5035,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
   )
   target_compile_features(fd_conservation_posix_test PUBLIC cxx_std_14)
@@ -5168,6 +5172,8 @@ add_executable(test_core_iomgr_timer_list_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
 )
 target_compile_features(test_core_iomgr_timer_list_test PUBLIC cxx_std_14)
@@ -5281,8 +5287,6 @@ if(gRPC_BUILD_TESTS)
 if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
 
   add_executable(address_sorting_test_unsecure
-    src/core/lib/gpr/subprocess_posix.cc
-    src/core/lib/gpr/subprocess_windows.cc
     test/core/util/cmdline.cc
     test/core/util/fuzzer_util.cc
     test/core/util/grpc_profiler.cc
@@ -5292,6 +5296,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     test/cpp/naming/address_sorting_test.cc
     test/cpp/util/byte_buffer_proto_helper.cc
@@ -5403,6 +5409,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     test/cpp/common/alarm_test.cc
     third_party/googletest/googletest/src/gtest-all.cc
@@ -5845,6 +5853,8 @@ add_executable(alts_security_connector_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -6179,6 +6189,8 @@ add_executable(auth_context_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -6263,6 +6275,8 @@ add_executable(authorization_matchers_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -6387,6 +6401,8 @@ add_executable(aws_request_signer_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -6585,8 +6601,6 @@ if(gRPC_BUILD_TESTS)
 if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
 
   add_executable(bad_ssl_alpn_test
-    src/core/lib/gpr/subprocess_posix.cc
-    src/core/lib/gpr/subprocess_windows.cc
     test/core/bad_ssl/bad_ssl_test.cc
     test/core/end2end/cq_verifier.cc
     test/core/util/cmdline.cc
@@ -6598,6 +6612,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -6637,8 +6653,6 @@ if(gRPC_BUILD_TESTS)
 if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
 
   add_executable(bad_ssl_cert_test
-    src/core/lib/gpr/subprocess_posix.cc
-    src/core/lib/gpr/subprocess_windows.cc
     test/core/bad_ssl/bad_ssl_test.cc
     test/core/end2end/cq_verifier.cc
     test/core/util/cmdline.cc
@@ -6650,6 +6664,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -7205,6 +7221,8 @@ add_executable(buffer_list_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -7963,6 +7981,8 @@ add_executable(cel_authorization_engine_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -8297,6 +8317,8 @@ add_executable(channel_creds_registry_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -8592,6 +8614,8 @@ add_executable(check_gcp_environment_linux_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -8639,6 +8663,8 @@ add_executable(check_gcp_environment_windows_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -9280,6 +9306,8 @@ add_executable(cmdline_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -9404,6 +9432,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -9726,6 +9756,8 @@ add_executable(connectivity_state_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -10787,6 +10819,8 @@ add_executable(endpoint_pair_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -10922,6 +10956,8 @@ add_executable(error_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -10969,6 +11005,8 @@ add_executable(error_utils_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -11016,6 +11054,8 @@ add_executable(evaluate_args_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -11584,6 +11624,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -12239,6 +12281,8 @@ add_executable(format_request_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -12922,6 +12966,8 @@ add_executable(grpc_alts_credentials_options_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13007,6 +13053,8 @@ add_executable(grpc_authorization_engine_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13054,6 +13102,8 @@ add_executable(grpc_authorization_policy_provider_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13413,6 +13463,8 @@ add_executable(grpc_ipv6_loopback_available_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13670,6 +13722,8 @@ add_executable(grpc_tls_certificate_distributor_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13717,6 +13771,8 @@ add_executable(grpc_tls_certificate_provider_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13764,6 +13820,8 @@ add_executable(grpc_tls_certificate_verifier_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13811,6 +13869,8 @@ add_executable(grpc_tls_credentials_options_comparator_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -13858,6 +13918,8 @@ add_executable(grpc_tls_credentials_options_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -14462,6 +14524,8 @@ add_executable(histogram_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -14546,6 +14610,8 @@ add_executable(hpack_encoder_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -14593,6 +14659,8 @@ add_executable(hpack_parser_table_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -14640,6 +14708,8 @@ add_executable(hpack_parser_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -15150,6 +15220,8 @@ add_executable(insecure_security_connector_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -15657,6 +15729,8 @@ add_executable(json_token_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -15704,6 +15778,8 @@ add_executable(jwt_verifier_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -16308,6 +16384,8 @@ add_executable(matchers_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -16677,6 +16755,8 @@ add_executable(message_compress_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -16761,6 +16841,8 @@ add_executable(metadata_map_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -17851,6 +17933,8 @@ add_executable(parser_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -18114,6 +18198,8 @@ add_executable(pid_controller_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -18161,6 +18247,8 @@ add_executable(ping_abuse_policy_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -18208,6 +18296,8 @@ add_executable(ping_configuration_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -18303,6 +18393,8 @@ add_executable(ping_rate_policy_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -19431,6 +19523,8 @@ add_executable(rbac_translator_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -19737,6 +19831,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -19787,6 +19883,8 @@ add_executable(resolve_address_using_ares_resolver_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -19836,6 +19934,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -19886,6 +19986,8 @@ add_executable(resolve_address_using_native_resolver_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -21992,6 +22094,8 @@ add_executable(secure_endpoint_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -22039,6 +22143,8 @@ add_executable(security_connector_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -22236,6 +22342,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     test/cpp/server/server_builder_test.cc
     third_party/googletest/googletest/src/gtest-all.cc
@@ -22302,6 +22410,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     test/cpp/server/server_builder_with_socket_mutator_test.cc
     third_party/googletest/googletest/src/gtest-all.cc
@@ -22712,6 +22822,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     test/cpp/server/server_request_call_test.cc
     third_party/googletest/googletest/src/gtest-all.cc
@@ -22982,6 +23094,8 @@ add_executable(settings_timeout_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -23594,6 +23708,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -23715,6 +23831,8 @@ add_executable(ssl_credentials_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -23993,6 +24111,8 @@ add_executable(status_conversion_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -24116,6 +24236,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -24309,6 +24431,8 @@ add_executable(streams_not_seen_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -24468,6 +24592,8 @@ add_executable(system_roots_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -24557,6 +24683,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -24646,6 +24774,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -24695,6 +24825,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     third_party/googletest/googletest/src/gtest-all.cc
     third_party/googletest/googlemock/src/gmock-all.cc
@@ -25118,6 +25250,8 @@ add_executable(test_core_iomgr_load_file_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -25165,6 +25299,8 @@ add_executable(test_core_iomgr_timer_heap_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -25212,6 +25348,8 @@ add_executable(test_core_security_credentials_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -25819,6 +25957,8 @@ add_executable(timeout_encoding_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -26033,6 +26173,8 @@ add_executable(tls_security_connector_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
@@ -27347,6 +27489,8 @@ if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
     test/core/util/passthru_endpoint.cc
     test/core/util/resolve_localhost_ip46.cc
     test/core/util/slice_splitter.cc
+    test/core/util/subprocess_posix.cc
+    test/core/util/subprocess_windows.cc
     test/core/util/tracer_util.cc
     test/cpp/performance/writes_per_rpc_test.cc
     third_party/googletest/googletest/src/gtest-all.cc
@@ -28367,6 +28511,8 @@ add_executable(xds_credentials_test
   test/core/util/passthru_endpoint.cc
   test/core/util/resolve_localhost_ip46.cc
   test/core/util/slice_splitter.cc
+  test/core/util/subprocess_posix.cc
+  test/core/util/subprocess_windows.cc
   test/core/util/tracer_util.cc
   third_party/googletest/googletest/src/gtest-all.cc
   third_party/googletest/googlemock/src/gmock-all.cc
diff --git a/build_autogenerated.yaml b/build_autogenerated.yaml
index 5b8542b7b9c..da1291c2353 100644
--- a/build_autogenerated.yaml
+++ b/build_autogenerated.yaml
@@ -2773,6 +2773,7 @@ libs:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   - test/cpp/microbenchmarks/fullstack_context_mutators.h
   - test/cpp/microbenchmarks/fullstack_fixtures.h
@@ -2791,6 +2792,8 @@ libs:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/microbenchmarks/helpers.cc
   deps:
@@ -3179,7 +3182,6 @@ libs:
   language: c++
   public_headers: []
   headers:
-  - src/core/lib/gpr/subprocess.h
   - test/core/end2end/data/ssl_test_data.h
   - test/core/util/cmdline.h
   - test/core/util/evaluate_args_test_util.h
@@ -3192,6 +3194,7 @@ libs:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   - test/cpp/util/byte_buffer_proto_helper.h
   - test/cpp/util/create_test_channel.h
@@ -3199,8 +3202,6 @@ libs:
   - test/cpp/util/subprocess.h
   - test/cpp/util/test_credentials_provider.h
   src:
-  - src/core/lib/gpr/subprocess_posix.cc
-  - src/core/lib/gpr/subprocess_windows.cc
   - test/core/end2end/data/client_certs.cc
   - test/core/end2end/data/server1_cert.cc
   - test/core/end2end/data/server1_key.cc
@@ -3214,6 +3215,8 @@ libs:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/util/byte_buffer_proto_helper.cc
   - test/cpp/util/create_test_channel.cc
@@ -4195,6 +4198,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/fd_conservation_posix_test.cc
@@ -4207,6 +4211,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4268,6 +4274,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/timer_list_test.cc
@@ -4280,6 +4287,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4339,7 +4348,6 @@ targets:
   build: test
   language: c++
   headers:
-  - src/core/lib/gpr/subprocess.h
   - test/core/util/cmdline.h
   - test/core/util/evaluate_args_test_util.h
   - test/core/util/fuzzer_util.h
@@ -4351,13 +4359,12 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   - test/cpp/util/byte_buffer_proto_helper.h
   - test/cpp/util/string_ref_helper.h
   - test/cpp/util/subprocess.h
   src:
-  - src/core/lib/gpr/subprocess_posix.cc
-  - src/core/lib/gpr/subprocess_windows.cc
   - test/core/util/cmdline.cc
   - test/core/util/fuzzer_util.cc
   - test/core/util/grpc_profiler.cc
@@ -4367,6 +4374,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/naming/address_sorting_test.cc
   - test/cpp/util/byte_buffer_proto_helper.cc
@@ -4414,6 +4423,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/util/cmdline.cc
@@ -4425,6 +4435,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/common/alarm_test.cc
   deps:
@@ -4570,6 +4582,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/alts_security_connector_test.cc
@@ -4582,6 +4595,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4680,6 +4695,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/auth_context_test.cc
@@ -4692,6 +4708,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4722,6 +4740,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/authorization_matchers_test.cc
@@ -4734,6 +4753,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4779,6 +4800,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/aws_request_signer_test.cc
@@ -4791,6 +4813,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4865,7 +4889,6 @@ targets:
   build: test
   language: c++
   headers:
-  - src/core/lib/gpr/subprocess.h
   - test/core/end2end/cq_verifier.h
   - test/core/util/cmdline.h
   - test/core/util/evaluate_args_test_util.h
@@ -4878,10 +4901,9 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
-  - src/core/lib/gpr/subprocess_posix.cc
-  - src/core/lib/gpr/subprocess_windows.cc
   - test/core/bad_ssl/bad_ssl_test.cc
   - test/core/end2end/cq_verifier.cc
   - test/core/util/cmdline.cc
@@ -4893,6 +4915,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -4905,7 +4929,6 @@ targets:
   build: test
   language: c++
   headers:
-  - src/core/lib/gpr/subprocess.h
   - test/core/end2end/cq_verifier.h
   - test/core/util/cmdline.h
   - test/core/util/evaluate_args_test_util.h
@@ -4918,10 +4941,9 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
-  - src/core/lib/gpr/subprocess_posix.cc
-  - src/core/lib/gpr/subprocess_windows.cc
   - test/core/bad_ssl/bad_ssl_test.cc
   - test/core/end2end/cq_verifier.cc
   - test/core/util/cmdline.cc
@@ -4933,6 +4955,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -5206,6 +5230,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/buffer_list_test.cc
@@ -5218,6 +5243,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -5707,6 +5734,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - src/core/ext/upb-generated/envoy/annotations/deprecation.upb.c
@@ -5808,6 +5836,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -5920,6 +5950,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/channel_creds_registry_test.cc
@@ -5932,6 +5963,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -6021,6 +6054,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/check_gcp_environment_linux_test.cc
@@ -6033,6 +6067,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -6052,6 +6088,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/check_gcp_environment_windows_test.cc
@@ -6064,6 +6101,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -6367,6 +6406,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/util/cmdline.cc
@@ -6379,6 +6419,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -6422,6 +6464,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/combiner_test.cc
@@ -6434,6 +6477,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -6556,6 +6601,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/connectivity_state_test.cc
@@ -6568,6 +6614,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -7063,6 +7111,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/endpoint_pair_test.cc
@@ -7076,6 +7125,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -7119,6 +7170,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/endpoint_tests.cc
@@ -7132,6 +7184,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -7152,6 +7206,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/error_utils_test.cc
@@ -7164,6 +7219,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -7183,6 +7240,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/evaluate_args_test.cc
@@ -7195,6 +7253,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -7497,6 +7557,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/fd_posix_test.cc
@@ -7509,6 +7570,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -7945,6 +8008,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/end2end/data/client_certs.cc
@@ -7961,6 +8025,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -8662,6 +8728,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_alts_credentials_options_test.cc
@@ -8674,6 +8741,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -8703,6 +8772,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_authorization_engine_test.cc
@@ -8716,6 +8786,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -8735,6 +8807,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_authorization_policy_provider_test.cc
@@ -8747,6 +8820,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_authorization_provider
@@ -8880,6 +8955,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/grpc_ipv6_loopback_available_test.cc
@@ -8892,6 +8968,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -8951,6 +9029,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_tls_certificate_distributor_test.cc
@@ -8963,6 +9042,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -8982,6 +9063,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_tls_certificate_provider_test.cc
@@ -8994,6 +9076,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9013,6 +9097,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_tls_certificate_verifier_test.cc
@@ -9025,6 +9110,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9044,6 +9131,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_tls_credentials_options_comparator_test.cc
@@ -9056,6 +9144,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9075,6 +9165,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/grpc_tls_credentials_options_test.cc
@@ -9087,6 +9178,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9329,6 +9422,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/util/cmdline.cc
@@ -9341,6 +9435,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9371,6 +9467,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/hpack_encoder_test.cc
@@ -9383,6 +9480,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9403,6 +9502,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/hpack_parser_table_test.cc
@@ -9415,6 +9515,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9435,6 +9537,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/hpack_parser_test.cc
@@ -9447,6 +9550,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9635,6 +9740,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/insecure_security_connector_test.cc
@@ -9647,6 +9753,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9908,6 +10016,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/json_token_test.cc
@@ -9920,6 +10029,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -9940,6 +10051,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/jwt_verifier_test.cc
@@ -9952,6 +10064,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -10296,6 +10410,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/matchers/matchers_test.cc
@@ -10308,6 +10423,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -10506,6 +10623,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/compression/message_compress_test.cc
@@ -10518,6 +10636,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -10547,6 +10667,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/metadata_map_test.cc
@@ -10559,6 +10680,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -10963,6 +11086,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/end2end/data/client_certs.cc
@@ -10979,6 +11103,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -11118,6 +11244,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/pid_controller_test.cc
@@ -11130,6 +11257,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -11149,6 +11278,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/ping_abuse_policy_test.cc
@@ -11161,6 +11291,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -11181,6 +11313,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/ping_configuration_test.cc
@@ -11193,6 +11326,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -11248,6 +11383,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/ping_rate_policy_test.cc
@@ -11260,6 +11396,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -11719,6 +11857,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/rbac_translator_test.cc
@@ -11731,6 +11870,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_authorization_provider
@@ -11887,6 +12028,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/resolve_address_posix_test.cc
@@ -11899,6 +12041,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - absl/flags:parse
@@ -11926,6 +12070,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/resolve_address_test.cc
@@ -11939,6 +12084,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -11959,6 +12106,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/resolve_address_posix_test.cc
@@ -11971,6 +12119,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - absl/flags:parse
@@ -11998,6 +12148,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/resolve_address_test.cc
@@ -12011,6 +12162,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -13365,6 +13518,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/endpoint_tests.cc
@@ -13378,6 +13532,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -13397,6 +13553,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/security_connector_test.cc
@@ -13409,6 +13566,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -13471,6 +13630,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - src/proto/grpc/testing/echo.proto
@@ -13486,6 +13646,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/server/server_builder_test.cc
   deps:
@@ -13511,6 +13673,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - src/proto/grpc/testing/echo.proto
@@ -13526,6 +13689,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/server/server_builder_with_socket_mutator_test.cc
   deps:
@@ -13668,6 +13833,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - src/proto/grpc/testing/echo.proto
@@ -13683,6 +13849,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/server/server_request_call_test.cc
   deps:
@@ -13792,6 +13960,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/chttp2/settings_timeout_test.cc
@@ -13804,6 +13973,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14096,6 +14267,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/socket_utils_test.cc
@@ -14108,6 +14280,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14152,6 +14326,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/ssl_credentials_test.cc
@@ -14164,6 +14339,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14258,6 +14435,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/status_conversion_test.cc
@@ -14270,6 +14448,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14311,6 +14491,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/end2end/cq_verifier.cc
@@ -14324,6 +14505,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14410,6 +14593,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/end2end/cq_verifier.cc
@@ -14423,6 +14607,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14473,6 +14659,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/system_roots_test.cc
@@ -14485,6 +14672,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14521,6 +14710,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/tcp_client_posix_test.cc
@@ -14533,6 +14723,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14571,6 +14763,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/endpoint_tests.cc
@@ -14584,6 +14777,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14606,6 +14801,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/tcp_server_posix_test.cc
@@ -14618,6 +14814,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14803,6 +15001,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/load_file_test.cc
@@ -14815,6 +15014,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14835,6 +15036,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/iomgr/timer_heap_test.cc
@@ -14847,6 +15049,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -14867,6 +15071,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/credentials_test.cc
@@ -14879,6 +15084,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -15078,6 +15285,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/transport/timeout_encoding_test.cc
@@ -15090,6 +15298,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -15156,6 +15366,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/tls_security_connector_test.cc
@@ -15168,6 +15379,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
@@ -15878,6 +16091,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - src/proto/grpc/testing/echo.proto
@@ -15893,6 +16107,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   - test/cpp/performance/writes_per_rpc_test.cc
   deps:
@@ -16234,6 +16450,7 @@ targets:
   - test/core/util/passthru_endpoint.h
   - test/core/util/resolve_localhost_ip46.h
   - test/core/util/slice_splitter.h
+  - test/core/util/subprocess.h
   - test/core/util/tracer_util.h
   src:
   - test/core/security/xds_credentials_test.cc
@@ -16246,6 +16463,8 @@ targets:
   - test/core/util/passthru_endpoint.cc
   - test/core/util/resolve_localhost_ip46.cc
   - test/core/util/slice_splitter.cc
+  - test/core/util/subprocess_posix.cc
+  - test/core/util/subprocess_windows.cc
   - test/core/util/tracer_util.cc
   deps:
   - grpc_test_util
diff --git a/grpc.gyp b/grpc.gyp
index 38b14acf973..9a53deff7e9 100644
--- a/grpc.gyp
+++ b/grpc.gyp
@@ -1504,6 +1504,8 @@
         'test/core/util/passthru_endpoint.cc',
         'test/core/util/resolve_localhost_ip46.cc',
         'test/core/util/slice_splitter.cc',
+        'test/core/util/subprocess_posix.cc',
+        'test/core/util/subprocess_windows.cc',
         'test/core/util/tracer_util.cc',
         'test/cpp/microbenchmarks/helpers.cc',
       ],
@@ -1644,8 +1646,6 @@
         'grpc_test_util',
       ],
       'sources': [
-        'src/core/lib/gpr/subprocess_posix.cc',
-        'src/core/lib/gpr/subprocess_windows.cc',
         'test/core/end2end/data/client_certs.cc',
         'test/core/end2end/data/server1_cert.cc',
         'test/core/end2end/data/server1_key.cc',
@@ -1659,6 +1659,8 @@
         'test/core/util/passthru_endpoint.cc',
         'test/core/util/resolve_localhost_ip46.cc',
         'test/core/util/slice_splitter.cc',
+        'test/core/util/subprocess_posix.cc',
+        'test/core/util/subprocess_windows.cc',
         'test/core/util/tracer_util.cc',
         'test/cpp/util/byte_buffer_proto_helper.cc',
         'test/cpp/util/create_test_channel.cc',
diff --git a/src/core/lib/gpr/subprocess_posix.cc b/src/core/lib/gpr/subprocess_posix.cc
deleted file mode 100644
index b482c440da7..00000000000
--- a/src/core/lib/gpr/subprocess_posix.cc
+++ /dev/null
@@ -1,266 +0,0 @@
-//
-//
-// Copyright 2015 gRPC authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-//
-
-#include <grpc/support/port_platform.h>
-
-#ifdef GPR_POSIX_SUBPROCESS
-
-#include <errno.h>
-#include <signal.h>
-#include <string.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#include <iostream>
-
-#include "absl/strings/substitute.h"
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-
-#include "src/core/lib/gpr/subprocess.h"
-#include "src/core/lib/gprpp/memory.h"
-#include "src/core/lib/gprpp/strerror.h"
-
-struct gpr_subprocess {
-  int pid;
-  bool joined;
-  int child_stdin_;
-  int child_stdout_;
-};
-
-const char* gpr_subprocess_binary_extension() { return ""; }
-
-gpr_subprocess* gpr_subprocess_create(int argc, const char** argv) {
-  gpr_subprocess* r;
-  int pid;
-  char** exec_args;
-  int stdin_pipe[2];
-  int stdout_pipe[2];
-  int p0 = pipe(stdin_pipe);
-  int p1 = pipe(stdout_pipe);
-  GPR_ASSERT(p0 != -1);
-  GPR_ASSERT(p1 != -1);
-  pid = fork();
-  if (pid == -1) {
-    return nullptr;
-  } else if (pid == 0) {
-    dup2(stdin_pipe[0], STDIN_FILENO);
-    dup2(stdout_pipe[1], STDOUT_FILENO);
-    close(stdin_pipe[0]);
-    close(stdin_pipe[1]);
-    close(stdout_pipe[0]);
-    close(stdout_pipe[1]);
-    exec_args = static_cast<char**>(
-        gpr_malloc((static_cast<size_t>(argc) + 1) * sizeof(char*)));
-    memcpy(exec_args, argv, static_cast<size_t>(argc) * sizeof(char*));
-    exec_args[argc] = nullptr;
-    execv(exec_args[0], exec_args);
-    // if we reach here, an error has occurred
-    gpr_log(GPR_ERROR, "execv '%s' failed: %s", exec_args[0],
-            grpc_core::StrError(errno).c_str());
-    _exit(1);
-  } else {
-    r = grpc_core::Zalloc<gpr_subprocess>();
-    r->pid = pid;
-    close(stdin_pipe[0]);
-    close(stdout_pipe[1]);
-    r->child_stdin_ = stdin_pipe[1];
-    r->child_stdout_ = stdout_pipe[0];
-    return r;
-  }
-}
-
-gpr_subprocess* gpr_subprocess_create_with_envp(int argc, const char** argv,
-                                                int envc, const char** envp) {
-  gpr_subprocess* r;
-  int pid;
-  char **exec_args, **envp_args;
-  int stdin_pipe[2];
-  int stdout_pipe[2];
-  int p0 = pipe(stdin_pipe);
-  int p1 = pipe(stdout_pipe);
-  GPR_ASSERT(p0 != -1);
-  GPR_ASSERT(p1 != -1);
-  pid = fork();
-  if (pid == -1) {
-    return nullptr;
-  } else if (pid == 0) {
-    dup2(stdin_pipe[0], STDIN_FILENO);
-    dup2(stdout_pipe[1], STDOUT_FILENO);
-    close(stdin_pipe[0]);
-    close(stdin_pipe[1]);
-    close(stdout_pipe[0]);
-    close(stdout_pipe[1]);
-    exec_args = static_cast<char**>(
-        gpr_malloc((static_cast<size_t>(argc) + 1) * sizeof(char*)));
-    memcpy(exec_args, argv, static_cast<size_t>(argc) * sizeof(char*));
-    exec_args[argc] = nullptr;
-    envp_args = static_cast<char**>(
-        gpr_malloc((static_cast<size_t>(envc) + 1) * sizeof(char*)));
-    memcpy(envp_args, envp, static_cast<size_t>(envc) * sizeof(char*));
-    envp_args[envc] = nullptr;
-    execve(exec_args[0], exec_args, envp_args);
-    // if we reach here, an error has occurred
-    gpr_log(GPR_ERROR, "execvpe '%s' failed: %s", exec_args[0],
-            grpc_core::StrError(errno).c_str());
-    _exit(1);
-  } else {
-    r = grpc_core::Zalloc<gpr_subprocess>();
-    r->pid = pid;
-    close(stdin_pipe[0]);
-    close(stdout_pipe[1]);
-    r->child_stdin_ = stdin_pipe[1];
-    r->child_stdout_ = stdout_pipe[0];
-    return r;
-  }
-}
-
-bool gpr_subprocess_communicate(gpr_subprocess* p, std::string& input_data,
-                                std::string* output_data, std::string* error) {
-  typedef void SignalHandler(int);
-
-  // Make sure SIGPIPE is disabled so that if the child dies it doesn't kill us.
-  SignalHandler* old_pipe_handler = signal(SIGPIPE, SIG_IGN);
-
-  int input_pos = 0;
-  int max_fd = std::max(p->child_stdin_, p->child_stdout_);
-
-  while (p->child_stdout_ != -1) {
-    fd_set read_fds;
-    fd_set write_fds;
-    FD_ZERO(&read_fds);
-    FD_ZERO(&write_fds);
-    if (p->child_stdout_ != -1) {
-      FD_SET(p->child_stdout_, &read_fds);
-    }
-    if (p->child_stdin_ != -1) {
-      FD_SET(p->child_stdin_, &write_fds);
-    }
-
-    if (select(max_fd + 1, &read_fds, &write_fds, nullptr, nullptr) < 0) {
-      if (errno == EINTR) {
-        // Interrupted by signal.  Try again.
-        continue;
-      } else {
-        std::cerr << "select: " << strerror(errno) << std::endl;
-        GPR_ASSERT(0);
-      }
-    }
-
-    if (p->child_stdin_ != -1 && FD_ISSET(p->child_stdin_, &write_fds)) {
-      int n = write(p->child_stdin_, input_data.data() + input_pos,
-                    input_data.size() - input_pos);
-      if (n < 0) {
-        // Child closed pipe.  Presumably it will report an error later.
-        // Pretend we're done for now.
-        input_pos = input_data.size();
-      } else {
-        input_pos += n;
-      }
-
-      if (input_pos == static_cast<int>(input_data.size())) {
-        // We're done writing.  Close.
-        close(p->child_stdin_);
-        p->child_stdin_ = -1;
-      }
-    }
-
-    if (p->child_stdout_ != -1 && FD_ISSET(p->child_stdout_, &read_fds)) {
-      char buffer[4096];
-      int n = read(p->child_stdout_, buffer, sizeof(buffer));
-
-      if (n > 0) {
-        output_data->append(buffer, static_cast<size_t>(n));
-      } else {
-        // We're done reading.  Close.
-        close(p->child_stdout_);
-        p->child_stdout_ = -1;
-      }
-    }
-  }
-
-  if (p->child_stdin_ != -1) {
-    // Child did not finish reading input before it closed the output.
-    // Presumably it exited with an error.
-    close(p->child_stdin_);
-    p->child_stdin_ = -1;
-  }
-
-  int status;
-  while (waitpid(p->pid, &status, 0) == -1) {
-    if (errno != EINTR) {
-      std::cerr << "waitpid: " << strerror(errno) << std::endl;
-      GPR_ASSERT(0);
-    }
-  }
-
-  // Restore SIGPIPE handling.
-  signal(SIGPIPE, old_pipe_handler);
-
-  if (WIFEXITED(status)) {
-    if (WEXITSTATUS(status) != 0) {
-      int error_code = WEXITSTATUS(status);
-      *error =
-          absl::Substitute("Plugin failed with status code $0.", error_code);
-      return false;
-    }
-  } else if (WIFSIGNALED(status)) {
-    int signal = WTERMSIG(status);
-    *error = absl::Substitute("Plugin killed by signal $0.", signal);
-    return false;
-  } else {
-    *error = "Neither WEXITSTATUS nor WTERMSIG is true?";
-    return false;
-  }
-
-  return true;
-}
-
-void gpr_subprocess_destroy(gpr_subprocess* p) {
-  if (!p->joined) {
-    kill(p->pid, SIGKILL);
-    gpr_subprocess_join(p);
-  }
-  gpr_free(p);
-}
-
-int gpr_subprocess_join(gpr_subprocess* p) {
-  int status;
-retry:
-  if (waitpid(p->pid, &status, 0) == -1) {
-    if (errno == EINTR) {
-      goto retry;
-    }
-    gpr_log(GPR_ERROR, "waitpid failed for pid %d: %s", p->pid,
-            grpc_core::StrError(errno).c_str());
-    return -1;
-  }
-  p->joined = true;
-  return status;
-}
-
-void gpr_subprocess_interrupt(gpr_subprocess* p) {
-  if (!p->joined) {
-    kill(p->pid, SIGINT);
-  }
-}
-
-int gpr_subprocess_get_process_id(gpr_subprocess* p) { return p->pid; }
-
-#endif  // GPR_POSIX_SUBPROCESS
diff --git a/test/core/bad_ssl/bad_ssl_test.cc b/test/core/bad_ssl/bad_ssl_test.cc
index 5faa7b7bc5a..51d5a95b63f 100644
--- a/test/core/bad_ssl/bad_ssl_test.cc
+++ b/test/core/bad_ssl/bad_ssl_test.cc
@@ -32,11 +32,11 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/lib/gpr/subprocess.h"
 #include "src/core/lib/gprpp/env.h"
 #include "src/core/lib/gprpp/host_port.h"
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
+#include "test/core/util/subprocess.h"
 #include "test/core/util/test_config.h"
 
 static void run_test(const char* target, size_t nops) {
diff --git a/test/core/bad_ssl/generate_tests.bzl b/test/core/bad_ssl/generate_tests.bzl
index ecce282765a..f2f3fcab93e 100755
--- a/test/core/bad_ssl/generate_tests.bzl
+++ b/test/core/bad_ssl/generate_tests.bzl
@@ -61,7 +61,6 @@ def grpc_bad_ssl_tests():
                 "//test/core/util:grpc_test_util_base",
                 "//:gpr",
                 "//:grpc",
-                "//:subprocess",
                 "//test/core/end2end:cq_verifier",
             ],
             tags = ["no_windows"],
diff --git a/test/core/event_engine/test_suite/tests/BUILD b/test/core/event_engine/test_suite/tests/BUILD
index 4c187e2c5d4..ef297860a97 100644
--- a/test/core/event_engine/test_suite/tests/BUILD
+++ b/test/core/event_engine/test_suite/tests/BUILD
@@ -68,7 +68,6 @@ grpc_cc_library(
         "address_sorting",
     ],
     deps = [
-        "//:subprocess",
         "//src/core:env",
         "//test/core/event_engine:event_engine_test_utils",
         "//test/core/event_engine/test_suite:event_engine_test_framework",
diff --git a/test/core/http/BUILD b/test/core/http/BUILD
index 2495cfb1cbd..965a7a84ca9 100644
--- a/test/core/http/BUILD
+++ b/test/core/http/BUILD
@@ -68,7 +68,6 @@ grpc_cc_library(
     hdrs = ["httpcli_test_util.h"],
     deps = [
         "//:gpr",
-        "//:subprocess",
         "//test/core/end2end:ssl_test_data",
         "//test/core/util:grpc_test_util",
         "//test/core/util:grpc_test_util_base",
@@ -91,7 +90,6 @@ grpc_cc_test(
         ":httpcli_test_util",
         "//:gpr",
         "//:grpc",
-        "//:subprocess",
         "//test/core/end2end:ssl_test_data",
         "//test/core/util:fake_udp_and_tcp_server",
         "//test/core/util:grpc_test_util",
@@ -105,7 +103,6 @@ grpc_cc_test(
     data = [
         "python_wrapper.sh",
         "test_server.py",
-        "//:subprocess",
         "//src/core/tsi/test_creds:ca.pem",
         "//src/core/tsi/test_creds:server1.key",
         "//src/core/tsi/test_creds:server1.pem",
diff --git a/test/core/http/httpcli_test.cc b/test/core/http/httpcli_test.cc
index 98fc2c934fd..519e7fd3aaf 100644
--- a/test/core/http/httpcli_test.cc
+++ b/test/core/http/httpcli_test.cc
@@ -44,7 +44,6 @@
 #include <grpc/support/time.h>
 
 #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
-#include "src/core/lib/gpr/subprocess.h"
 #include "src/core/lib/gprpp/status_helper.h"
 #include "src/core/lib/gprpp/time.h"
 #include "src/core/lib/gprpp/time_util.h"
@@ -54,6 +53,7 @@
 #include "test/core/http/httpcli_test_util.h"
 #include "test/core/util/fake_udp_and_tcp_server.h"
 #include "test/core/util/port.h"
+#include "test/core/util/subprocess.h"
 #include "test/core/util/test_config.h"
 
 namespace {
diff --git a/test/core/http/httpcli_test_util.cc b/test/core/http/httpcli_test_util.cc
index 5381fb03dd3..763413cc373 100644
--- a/test/core/http/httpcli_test_util.cc
+++ b/test/core/http/httpcli_test_util.cc
@@ -32,8 +32,8 @@
 #include <grpc/support/time.h>
 
 #include "src/core/lib/config/config_vars.h"
-#include "src/core/lib/gpr/subprocess.h"
 #include "test/core/util/port.h"
+#include "test/core/util/subprocess.h"
 
 namespace grpc_core {
 namespace testing {
diff --git a/test/core/http/httpcli_test_util.h b/test/core/http/httpcli_test_util.h
index 6007a4be203..e1ecebe7926 100644
--- a/test/core/http/httpcli_test_util.h
+++ b/test/core/http/httpcli_test_util.h
@@ -19,7 +19,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#include "src/core/lib/gpr/subprocess.h"
+#include "test/core/util/subprocess.h"
 
 namespace grpc_core {
 namespace testing {
diff --git a/test/core/http/httpscli_test.cc b/test/core/http/httpscli_test.cc
index 35da8634f7e..281ccda4269 100644
--- a/test/core/http/httpscli_test.cc
+++ b/test/core/http/httpscli_test.cc
@@ -42,7 +42,6 @@
 #include <grpc/support/time.h>
 
 #include "src/core/lib/channel/channel_args.h"
-#include "src/core/lib/gpr/subprocess.h"
 #include "src/core/lib/gprpp/orphanable.h"
 #include "src/core/lib/gprpp/status_helper.h"
 #include "src/core/lib/gprpp/sync.h"
@@ -61,6 +60,7 @@
 #include "src/core/lib/uri/uri_parser.h"
 #include "test/core/http/httpcli_test_util.h"
 #include "test/core/util/fake_udp_and_tcp_server.h"
+#include "test/core/util/subprocess.h"
 #include "test/core/util/test_config.h"
 
 namespace {
diff --git a/test/core/memory_usage/BUILD b/test/core/memory_usage/BUILD
index cfc2880b688..41aab426c18 100644
--- a/test/core/memory_usage/BUILD
+++ b/test/core/memory_usage/BUILD
@@ -159,7 +159,6 @@ grpc_cc_test(
     deps = [
         "//:gpr",
         "//:grpc",
-        "//:subprocess",
         "//test/core/util:grpc_test_util",
         "//test/core/util:grpc_test_util_base",
     ],
@@ -179,7 +178,6 @@ grpc_cc_binary(
     deps = [
         "//:gpr",
         "//:grpc",
-        "//:subprocess",
         "//test/core/util:grpc_test_util",
         "//test/core/util:grpc_test_util_base",
     ],
diff --git a/test/core/memory_usage/memory_usage_test.cc b/test/core/memory_usage/memory_usage_test.cc
index 0c2c9ee2b73..671539654be 100644
--- a/test/core/memory_usage/memory_usage_test.cc
+++ b/test/core/memory_usage/memory_usage_test.cc
@@ -37,9 +37,9 @@
 #include <grpc/support/time.h>
 
 #include "src/core/lib/config/config_vars.h"
-#include "src/core/lib/gpr/subprocess.h"
 #include "src/core/lib/gprpp/host_port.h"
 #include "test/core/util/port.h"
+#include "test/core/util/subprocess.h"
 #include "test/core/util/test_config.h"
 
 ABSL_FLAG(std::string, benchmark_names, "call,channel",
diff --git a/test/core/util/BUILD b/test/core/util/BUILD
index e520da58a06..2b88fd11f58 100644
--- a/test/core/util/BUILD
+++ b/test/core/util/BUILD
@@ -59,6 +59,8 @@ grpc_cc_library(
         "passthru_endpoint.cc",
         "resolve_localhost_ip46.cc",
         "slice_splitter.cc",
+        "subprocess_posix.cc",
+        "subprocess_windows.cc",
         "tracer_util.cc",
     ],
     hdrs = [
@@ -73,6 +75,7 @@ grpc_cc_library(
         "passthru_endpoint.h",
         "resolve_localhost_ip46.h",
         "slice_splitter.h",
+        "subprocess.h",
         "tracer_util.h",
     ],
     external_deps = [
diff --git a/src/core/lib/gpr/subprocess.h b/test/core/util/subprocess.h
similarity index 68%
rename from src/core/lib/gpr/subprocess.h
rename to test/core/util/subprocess.h
index 71d4796fde6..a46be258516 100644
--- a/src/core/lib/gpr/subprocess.h
+++ b/test/core/util/subprocess.h
@@ -16,26 +16,17 @@
 //
 //
 
-#ifndef GRPC_SRC_CORE_LIB_GPR_SUBPROCESS_H
-#define GRPC_SRC_CORE_LIB_GPR_SUBPROCESS_H
+#ifndef GRPC_TEST_CORE_UTIL_SUBPROCESS_H
+#define GRPC_TEST_CORE_UTIL_SUBPROCESS_H
 
 #include <grpc/support/port_platform.h>
 
-#include <string>
-
 typedef struct gpr_subprocess gpr_subprocess;
 
 /// .exe on windows, empty on unices
 const char* gpr_subprocess_binary_extension();
 
 gpr_subprocess* gpr_subprocess_create(int argc, const char** argv);
-
-gpr_subprocess* gpr_subprocess_create_with_envp(int argc, const char** argv,
-                                                int envc, const char** envp);
-
-// communicate to the subprocess via stdin, stdout and stderr
-bool gpr_subprocess_communicate(gpr_subprocess* p, std::string& input_data,
-                                std::string* output_data, std::string* error);
 /// if subprocess has not been joined, kill it
 void gpr_subprocess_destroy(gpr_subprocess* p);
 /// returns exit status; can be called at most once
@@ -43,4 +34,4 @@ int gpr_subprocess_join(gpr_subprocess* p);
 void gpr_subprocess_interrupt(gpr_subprocess* p);
 int gpr_subprocess_get_process_id(gpr_subprocess* p);
 
-#endif  // GRPC_SRC_CORE_LIB_GPR_SUBPROCESS_H
+#endif  // GRPC_TEST_CORE_UTIL_SUBPROCESS_H
diff --git a/test/core/util/subprocess_posix.cc b/test/core/util/subprocess_posix.cc
new file mode 100644
index 00000000000..1b97df0d26d
--- /dev/null
+++ b/test/core/util/subprocess_posix.cc
@@ -0,0 +1,101 @@
+//
+//
+// Copyright 2015 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//
+
+#include <grpc/support/port_platform.h>
+
+#include <string>
+
+#ifdef GPR_POSIX_SUBPROCESS
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/strerror.h"
+#include "test/core/util/subprocess.h"
+
+struct gpr_subprocess {
+  int pid;
+  bool joined;
+};
+
+const char* gpr_subprocess_binary_extension() { return ""; }
+
+gpr_subprocess* gpr_subprocess_create(int argc, const char** argv) {
+  gpr_subprocess* r;
+  int pid;
+  char** exec_args;
+
+  pid = fork();
+  if (pid == -1) {
+    return nullptr;
+  } else if (pid == 0) {
+    exec_args = static_cast<char**>(
+        gpr_malloc((static_cast<size_t>(argc) + 1) * sizeof(char*)));
+    memcpy(exec_args, argv, static_cast<size_t>(argc) * sizeof(char*));
+    exec_args[argc] = nullptr;
+    execv(exec_args[0], exec_args);
+    // if we reach here, an error has occurred
+    gpr_log(GPR_ERROR, "execv '%s' failed: %s", exec_args[0],
+            grpc_core::StrError(errno).c_str());
+    _exit(1);
+  } else {
+    r = grpc_core::Zalloc<gpr_subprocess>();
+    r->pid = pid;
+    return r;
+  }
+}
+
+void gpr_subprocess_destroy(gpr_subprocess* p) {
+  if (!p->joined) {
+    kill(p->pid, SIGKILL);
+    gpr_subprocess_join(p);
+  }
+  gpr_free(p);
+}
+
+int gpr_subprocess_join(gpr_subprocess* p) {
+  int status;
+retry:
+  if (waitpid(p->pid, &status, 0) == -1) {
+    if (errno == EINTR) {
+      goto retry;
+    }
+    gpr_log(GPR_ERROR, "waitpid failed for pid %d: %s", p->pid,
+            grpc_core::StrError(errno).c_str());
+    return -1;
+  }
+  p->joined = true;
+  return status;
+}
+
+void gpr_subprocess_interrupt(gpr_subprocess* p) {
+  if (!p->joined) {
+    kill(p->pid, SIGINT);
+  }
+}
+
+int gpr_subprocess_get_process_id(gpr_subprocess* p) { return p->pid; }
+
+#endif  // GPR_POSIX_SUBPROCESS
diff --git a/src/core/lib/gpr/subprocess_windows.cc b/test/core/util/subprocess_windows.cc
similarity index 98%
rename from src/core/lib/gpr/subprocess_windows.cc
rename to test/core/util/subprocess_windows.cc
index 3efadd2a9b0..b639b3ef737 100644
--- a/src/core/lib/gpr/subprocess_windows.cc
+++ b/test/core/util/subprocess_windows.cc
@@ -31,9 +31,9 @@
 #include <grpc/support/log.h>
 
 #include "src/core/lib/gpr/string.h"
-#include "src/core/lib/gpr/subprocess.h"
 #include "src/core/lib/gprpp/crash.h"
 #include "src/core/lib/gprpp/tchar.h"
+#include "test/core/util/subprocess.h"
 
 struct gpr_subprocess {
   PROCESS_INFORMATION pi;
diff --git a/test/cpp/util/BUILD b/test/cpp/util/BUILD
index e4b98dc1ec2..d8aed93aa50 100644
--- a/test/cpp/util/BUILD
+++ b/test/cpp/util/BUILD
@@ -80,7 +80,6 @@ grpc_cc_library(
     ],
     deps = [
         "//:grpc++",
-        "//:subprocess",
         "//test/core/end2end:ssl_test_data",
         "//test/core/util:grpc_test_util",
         "//test/core/util:grpc_test_util_base",
@@ -115,7 +114,6 @@ grpc_cc_library(
     ],
     deps = [
         "//:grpc++_unsecure",
-        "//:subprocess",
         "//test/core/util:grpc_test_util_base",
         "//test/core/util:grpc_test_util_unsecure",
     ],
diff --git a/test/cpp/util/subprocess.cc b/test/cpp/util/subprocess.cc
index 2f0c9cd03b2..1cd7fbd44a4 100644
--- a/test/cpp/util/subprocess.cc
+++ b/test/cpp/util/subprocess.cc
@@ -20,7 +20,7 @@
 
 #include <vector>
 
-#include "src/core/lib/gpr/subprocess.h"
+#include "test/core/util/subprocess.h"
 
 namespace grpc {