Avoid warning on Addr sp, unused on some platforms (e.g. ppc32)

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14850

diff --git a/coregrind/vgdb-invoker-ptrace.c b/coregrind/vgdb-invoker-ptrace.c
index a9b79cd23e51a840a1f0f66b85725c2051f2f647..bccf9571d71631707673e36e6acd8bf7a2191024 100644 (file)
--- a/coregrind/vgdb-invoker-ptrace.c
+++ b/coregrind/vgdb-invoker-ptrace.c
@@ -797,7 +797,8 @@ Bool invoker_invoke_gdbserver (pid_t pid)
 #  else
    struct user user_mod;
 #  endif
-   Addr sp;
+   Addr sp __attribute__((unused)); // Not used on all platforms.
+
    /* A specific int value is passed to invoke_gdbserver, to check
       everything goes according to the plan. */
    const int check = 0x8BADF00D; // ate bad food.