runtime/cgo: fix Android build with NDK 22

Fixes #42655

Change-Id: I7d2b70098a4ba4dcb325fb0be076043789b86135
Reviewed-on: https://go-review.googlesource.com/c/go/+/280312
Run-TryBot: Elias Naur <[email protected]>
TryBot-Result: Go Bot <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>
Trust: Elias Naur <[email protected]>

Author: eliasnaur

src/runtime/cgo/gcc_linux_386.c

@@ -12,7 +12,7 @@ static void *threadentry(void*);
 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)

src/runtime/cgo/gcc_linux_amd64.c

@@ -14,7 +14,7 @@ static void* threadentry(void*);
 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)

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

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