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Mon, 1 Aug 2022 16:02:24 -0700 (PDT) Received: from toolbox.wdc.com (unknown [10.225.165.18]) by usg-ed-osssrv.wdc.com (Postfix) with ESMTPSA id 4LxYYB41BCz1Rwnl; Mon, 1 Aug 2022 16:02:22 -0700 (PDT) From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Richard Henderson , Alistair Francis Subject: [PULL 1/1] linux-user/riscv: Align signal frame to 16 bytes Date: Tue, 2 Aug 2022 09:02:12 +1000 Message-Id: <20220801230212.3406689-2-alistair.francis@opensource.wdc.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220801230212.3406689-1-alistair.francis@opensource.wdc.com> References: <20220801230212.3406689-1-alistair.francis@opensource.wdc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=216.71.153.141; envelope-from=prvs=2052cf057=alistair.francis@opensource.wdc.com; helo=esa3.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson Follow the kernel's alignment, as we already noted. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1093 Signed-off-by: Richard Henderson Reviewed-by: Alistair Francis Message-Id: <20220729201942.30738-1-richard.henderson@linaro.org> Signed-off-by: Alistair Francis --- linux-user/riscv/signal.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/linux-user/riscv/signal.c b/linux-user/riscv/signal.c index 296e39fbf0..eaa168199a 100644 --- a/linux-user/riscv/signal.c +++ b/linux-user/riscv/signal.c @@ -64,9 +64,7 @@ static abi_ulong get_sigframe(struct target_sigaction *ka, /* This is the X/Open sanctioned signal stack switching. */ sp = target_sigsp(sp, ka) - framesize; - - /* XXX: kernel aligns with 0xf ? */ - sp &= ~3UL; /* align sp on 4-byte boundary */ + sp &= ~0xf; return sp; }