sim: riscv: Make stack 16-byte aligned
Various gcc test cases fail due to the stack
alignment of 16 bytes is expected by gcc,
causing issues mostly with vararg functions,
e.g.
FAIL: gcc.c-torture/execute/nest-align-1.c -O0 execution test
FAIL: gcc.c-torture/execute/nest-stdar-1.c -O0 execution test
FAIL: gcc.c-torture/execute/va-arg-12.c -O0 execution test
FAIL: gcc.c-torture/execute/va-arg-15.c -O0 execution test
FAIL: gcc.c-torture/execute/va-arg-16.c -O0 execution test
FAIL: gcc.c-torture/execute/va-arg-17.c -O0 execution test
FAIL: gcc.c-torture/execute/va-arg-20.c -O0 execution test
FAIL: gcc.c-torture/execute/va-arg-26.c -O0 execution test
...
Approved-By: Andrew Burgess <aburgess@redhat.com>
1 file changed
