From 4387345a962284c77435a9644d528d2356adecc5 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 28 Mar 2014 15:29:47 +0000 Subject: [PATCH] tcg: Avoid stores to unaligned addresses MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid stores to unaligned addresses in TCG code generation, by using the usual memcpy() approach. (Using bswap.h would drag a lot of QEMU baggage into TCG, so it's simpler just to do direct memcpy() here.) Reviewed-by: Alex Bennée Signed-off-by: Peter Maydell Signed-off-by: Richard Henderson --- tcg/tcg.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index e71f7a0975..293f00bc5a 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -125,21 +125,21 @@ static inline void tcg_out8(TCGContext *s, uint8_t v) static inline void tcg_out16(TCGContext *s, uint16_t v) { uint8_t *p = s->code_ptr; - *(uint16_t *)p = v; + memcpy(p, &v, sizeof(v)); s->code_ptr = p + 2; } static inline void tcg_out32(TCGContext *s, uint32_t v) { uint8_t *p = s->code_ptr; - *(uint32_t *)p = v; + memcpy(p, &v, sizeof(v)); s->code_ptr = p + 4; } static inline void tcg_out64(TCGContext *s, uint64_t v) { uint8_t *p = s->code_ptr; - *(uint64_t *)p = v; + memcpy(p, &v, sizeof(v)); s->code_ptr = p + 8; }