Message ID | 20170803181224.21748-4-rth@twiddle.net |
---|---|
State | New |
Headers | show |
diff --git a/tcg/tcg.h b/tcg/tcg.h index da78721a0d..17b7750ee6 100644 --- a/tcg/tcg.h +++ b/tcg/tcg.h @@ -762,7 +762,10 @@ static inline void *tcg_malloc(int size) { TCGContext *s = &tcg_ctx; uint8_t *ptr, *ptr_end; - size = (size + sizeof(long) - 1) & ~(sizeof(long) - 1); + + /* ??? This is a weak placeholder for minimum malloc alignment. */ + size = QEMU_ALIGN_UP(size, 8); + ptr = s->pool_cur; ptr_end = ptr + size; if (unlikely(ptr_end > s->pool_end)) {
For a 64-bit ILP32 host, aligning to sizeof(long) is not enough. Guess the minimum for any host is 8, as that covers uint64_t. Qemu doesn't use a host long double or host vectors, except in extremely limited circumstances. Fixes a bus error for a sparc v8plus host. Signed-off-by: Richard Henderson <rth@twiddle.net> --- tcg/tcg.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)