From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42187) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eEakE-0001H6-FK for qemu-devel@nongnu.org; Tue, 14 Nov 2017 07:55:18 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eEak9-0006C4-Gg for qemu-devel@nongnu.org; Tue, 14 Nov 2017 07:55:14 -0500 Received: from mail-wm0-x243.google.com ([2a00:1450:400c:c09::243]:35045) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eEak9-0006Ab-63 for qemu-devel@nongnu.org; Tue, 14 Nov 2017 07:55:09 -0500 Received: by mail-wm0-x243.google.com with SMTP id y80so21058254wmd.0 for ; Tue, 14 Nov 2017 04:55:08 -0800 (PST) From: Richard Henderson Date: Tue, 14 Nov 2017 13:53:04 +0100 Message-Id: <20171114125304.854-1-richard.henderson@linaro.org> In-Reply-To: <20171114094203.28030-1-richard.henderson@linaro.org> References: <20171114094203.28030-1-richard.henderson@linaro.org> Subject: [Qemu-devel] [PATCH 2/1] target/arm: Use helper_retaddr in stxp helpers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org We use raw memory primitives along the !parallel_cpus paths in order to simplify the endianness handling. Because of that, we did not benefit from the generic changes to cpu_ldst_user_only_template.h. The simplest fix is to manipulate helper_retaddr here. Signed-off-by: Richard Henderson --- target/arm/helper-a64.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index d0e435ca4b..96a3ecf707 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -456,6 +456,8 @@ static uint64_t do_paired_cmpxchg64_le(CPUARMState *env, uint64_t addr, #ifdef CONFIG_USER_ONLY /* ??? Enforce alignment. */ uint64_t *haddr = g2h(addr); + + helper_retaddr = ra; o0 = ldq_le_p(haddr + 0); o1 = ldq_le_p(haddr + 1); oldv = int128_make128(o0, o1); @@ -465,6 +467,7 @@ static uint64_t do_paired_cmpxchg64_le(CPUARMState *env, uint64_t addr, stq_le_p(haddr + 0, int128_getlo(newv)); stq_le_p(haddr + 1, int128_gethi(newv)); } + helper_retaddr = 0; #else int mem_idx = cpu_mmu_index(env, false); TCGMemOpIdx oi0 = make_memop_idx(MO_LEQ | MO_ALIGN_16, mem_idx); @@ -523,6 +526,8 @@ static uint64_t do_paired_cmpxchg64_be(CPUARMState *env, uint64_t addr, #ifdef CONFIG_USER_ONLY /* ??? Enforce alignment. */ uint64_t *haddr = g2h(addr); + + helper_retaddr = ra; o1 = ldq_be_p(haddr + 0); o0 = ldq_be_p(haddr + 1); oldv = int128_make128(o0, o1); @@ -532,6 +537,7 @@ static uint64_t do_paired_cmpxchg64_be(CPUARMState *env, uint64_t addr, stq_be_p(haddr + 0, int128_gethi(newv)); stq_be_p(haddr + 1, int128_getlo(newv)); } + helper_retaddr = 0; #else int mem_idx = cpu_mmu_index(env, false); TCGMemOpIdx oi0 = make_memop_idx(MO_BEQ | MO_ALIGN_16, mem_idx); -- 2.12.0