linux-user: avoid gcc array overrun warning for sparc

Suppress a gcc array bounds overrun warning when filling in the SPARC
signal frame by adjusting our definition of the structure so that the
fp and callers_pc membes are part of the ins[] array rather than
separate fields; since qemu has no need to access the fields individually
there is no need to follow the kernel's structure field naming exactly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

diff --git a/linux-user/signal.c b/linux-user/signal.c
index 0664770c94fef3498c86afad41d743dbb340251e..b01bd6401176392d3d580fde5c893a225b7886c1 100644 (file)
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -1817,9 +1817,10 @@ struct target_sigcontext {
 /* A Sparc stack frame */
 struct sparc_stackf {
         abi_ulong locals[8];
-        abi_ulong ins[6];
-        struct sparc_stackf *fp;
-        abi_ulong callers_pc;
+        abi_ulong ins[8];
+        /* It's simpler to treat fp and callers_pc as elements of ins[]
+         * since we never need to access them ourselves.
+         */
         char *structptr;
         abi_ulong xargs[6];
         abi_ulong xxargs[1];