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From de6255941a5e1c2fb2d50e57f84e38c09f45023d Mon Sep 17 00:00:00 2001
From: Juanli Shen <juanlishen@google.com>
Date: Fri, 23 Aug 2019 08:46:09 -0700
Subject: [PATCH] Fix gettid() naming conflict

---
 src/core/lib/gpr/log_linux.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/core/lib/gpr/log_linux.cc b/src/core/lib/gpr/log_linux.cc
index 561276f0c20..81026e5689b 100644
--- a/src/core/lib/gpr/log_linux.cc
+++ b/src/core/lib/gpr/log_linux.cc
@@ -40,7 +40,9 @@
 #include <time.h>
 #include <unistd.h>
 
-static long gettid(void) { return syscall(__NR_gettid); }
+// Not naming it as gettid() to avoid duplicate declarations when complied with
+// GCC 9.1.
+static long local_gettid(void) { return syscall(__NR_gettid); }
 
 void gpr_log(const char* file, int line, gpr_log_severity severity,
              const char* format, ...) {
@@ -70,7 +72,7 @@ void gpr_default_log(gpr_log_func_args* args) {
   gpr_timespec now = gpr_now(GPR_CLOCK_REALTIME);
   struct tm tm;
   static __thread long tid = 0;
-  if (tid == 0) tid = gettid();
+  if (tid == 0) tid = local_gettid();
 
   timer = static_cast<time_t>(now.tv_sec);
   final_slash = strrchr(args->file, '/');


From c0763be75f4cd9216e89c22fb30449d38b83b74c Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Sat, 24 Aug 2019 07:57:56 +0200
Subject: [PATCH] fix gettid() naming conflict

---
 src/core/lib/iomgr/ev_epollex_linux.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/lib/iomgr/ev_epollex_linux.cc b/src/core/lib/iomgr/ev_epollex_linux.cc
index c2d80c08ddb..aec4d813610 100644
--- a/src/core/lib/iomgr/ev_epollex_linux.cc
+++ b/src/core/lib/iomgr/ev_epollex_linux.cc
@@ -1077,7 +1077,7 @@ static void end_worker(grpc_pollset* pollset, grpc_pollset_worker* worker,
 }
 
 #ifndef NDEBUG
-static long gettid(void) { return syscall(__NR_gettid); }
+static long local_gettid(void) { return syscall(__NR_gettid); }
 #endif
 
 /* pollset->mu lock must be held by the caller before calling this.
@@ -1097,7 +1097,7 @@ static grpc_error* pollset_work(grpc_pollset* pollset,
 #define WORKER_PTR (&worker)
 #endif
 #ifndef NDEBUG
-  WORKER_PTR->originator = gettid();
+  WORKER_PTR->originator = local_gettid();
 #endif
   if (GRPC_TRACE_FLAG_ENABLED(grpc_polling_trace)) {
     gpr_log(GPR_INFO,