[release-branch.go1.14] runtime/cgo: fix Android build with NDK 22

Fixes #43405

Change-Id: I7d2b70098a4ba4dcb325fb0be076043789b86135
Reviewed-on: https://go-review.googlesource.com/c/go/+/280312
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Elias Naur <mail@eliasnaur.com>
(cherry picked from commit 1d78139128d6d839d7da0aeb10b3e51b6c7c0749)
Reviewed-on: https://go-review.googlesource.com/c/go/+/289150
diff --git a/src/runtime/cgo/gcc_linux_386.c b/src/runtime/cgo/gcc_linux_386.c
index ece9f93..70c942a 100644
--- a/src/runtime/cgo/gcc_linux_386.c
+++ b/src/runtime/cgo/gcc_linux_386.c
@@ -12,7 +12,7 @@
 static void (*setg_gcc)(void*);
 
 // This will be set in gcc_android.c for android-specific customization.
-void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
+void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
 
 void
 x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
diff --git a/src/runtime/cgo/gcc_linux_amd64.c b/src/runtime/cgo/gcc_linux_amd64.c
index 9134e0d..f2bf648 100644
--- a/src/runtime/cgo/gcc_linux_amd64.c
+++ b/src/runtime/cgo/gcc_linux_amd64.c
@@ -14,7 +14,7 @@
 static void (*setg_gcc)(void*);
 
 // This will be set in gcc_android.c for android-specific customization.
-void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
+void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
 
 void
 x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
diff --git a/src/runtime/cgo/gcc_linux_arm.c b/src/runtime/cgo/gcc_linux_arm.c
index 61855b9..5bc0fee 100644
--- a/src/runtime/cgo/gcc_linux_arm.c
+++ b/src/runtime/cgo/gcc_linux_arm.c
@@ -10,7 +10,7 @@
 
 static void *threadentry(void*);
 
-void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
+void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
 static void (*setg_gcc)(void*);
 
 void
diff --git a/src/runtime/cgo/gcc_linux_arm64.c b/src/runtime/cgo/gcc_linux_arm64.c
index 261c884..17ff274 100644
--- a/src/runtime/cgo/gcc_linux_arm64.c
+++ b/src/runtime/cgo/gcc_linux_arm64.c
@@ -12,7 +12,7 @@
 
 static void *threadentry(void*);
 
-void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
+void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
 static void (*setg_gcc)(void*);
 
 void