From b4cff023374f4ebf82498eed94ae3451531c5e8f Mon Sep 17 00:00:00 2001
From: dbolduc <dbolduc@google.com>
Date: Fri, 17 Nov 2023 11:04:23 -0600
Subject: [PATCH] better workaround

---
 ci/cloudbuild/dockerfiles/centos-7.Dockerfile |  4 ++++
 .../cloud/internal/grpc_opentelemetry_test.cc | 19 -------------------
 2 files changed, 4 insertions(+), 19 deletions(-)

diff --git a/ci/cloudbuild/dockerfiles/centos-7.Dockerfile b/ci/cloudbuild/dockerfiles/centos-7.Dockerfile
index d1327be235654..a122753e2c757 100644
--- a/ci/cloudbuild/dockerfiles/centos-7.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/centos-7.Dockerfile
@@ -164,9 +164,13 @@ RUN curl -fsSL https://github.com/google/benchmark/archive/v1.8.3.tar.gz | \
     cmake --build cmake-out --target install && \
     ldconfig && cd /var/tmp && rm -fr build
 
+# We need to patch opentelemetry-cpp to work around a compiler bug in (at least)
+# GCC 7.x. See https://github.com/open-telemetry/opentelemetry-cpp/issues/1014
+# for more details.
 WORKDIR /var/tmp/build/
 RUN curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.12.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
+    sed -i 's/Stack &GetStack()/Stack \&GetStack() __attribute__((noinline, noclone))/' "api/include/opentelemetry/context/runtime_context.h" && \
     cmake \
         -DCMAKE_CXX_STANDARD=14 \
         -DCMAKE_BUILD_TYPE=Release \
diff --git a/google/cloud/internal/grpc_opentelemetry_test.cc b/google/cloud/internal/grpc_opentelemetry_test.cc
index 83dfbc67c1f24..9302f431aed07 100644
--- a/google/cloud/internal/grpc_opentelemetry_test.cc
+++ b/google/cloud/internal/grpc_opentelemetry_test.cc
@@ -13,7 +13,6 @@
 // limitations under the License.
 
 #include "google/cloud/internal/grpc_opentelemetry.h"
-#include "google/cloud/internal/compiler_info.h"
 #include "google/cloud/internal/make_status.h"
 #include "google/cloud/internal/trace_propagator.h"
 #include "google/cloud/testing_util/mock_completion_queue_impl.h"
@@ -211,24 +210,6 @@ TEST(OpenTelemetry, TracedAsyncBackoffDisabled) {
 }
 
 TEST(OpenTelemetry, TracedAsyncBackoffPreservesContext) {
-  if (CompilerId() == "GNU" && CompilerVersion() == "7.3.1") {
-    // Skip this test because there is a compiler bug in gcc < ???, where active
-    // spans are not set as the parent of newly created spans.
-    //
-    // This problem exists in opentelemetry-cpp. It is outside of any types used
-    // in our repo. The following test reproduces the bug:
-    //
-    // @code
-    // auto parent = tracer->StartSpan("parent");
-    // opentelemetry::trace::Scope parent_scope(parent);
-    // auto child = tracer->StartSpan("child");
-    // child->End();
-    // parent->End();
-    // EXPECT_THAT(parent, IsParentOf(child));
-    // @endcode
-    GTEST_SKIP();
-  }
-
   auto span_catcher = InstallSpanCatcher();
   auto parent = MakeSpan("parent");