From nobody Mon Feb 9 11:32:02 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1493264079715593.4285955885024; Wed, 26 Apr 2017 20:34:39 -0700 (PDT) Received: from localhost ([::1]:58525 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3aCU-0003oq-5s for importer@patchew.org; Wed, 26 Apr 2017 23:34:38 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37466) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3a7c-0007xa-3J for qemu-devel@nongnu.org; Wed, 26 Apr 2017 23:29:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3a7a-0001xh-T8 for qemu-devel@nongnu.org; Wed, 26 Apr 2017 23:29:36 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:40617) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3a7U-0001rv-3G; Wed, 26 Apr 2017 23:29:28 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 97E9520894; Wed, 26 Apr 2017 23:29:27 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute4.internal (MEProxy); Wed, 26 Apr 2017 23:29:27 -0400 Received: from localhost (flamenco.cs.columbia.edu [128.59.20.216]) by mail.messagingengine.com (Postfix) with ESMTPA id 54B607E6E3; Wed, 26 Apr 2017 23:29:27 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=braap.org; h=cc :date:from:in-reply-to:message-id:references:subject:to :x-me-sender:x-me-sender:x-sasl-enc:x-sasl-enc; s=mesmtp; bh=EIS I8m3qTNYJGjaKYqnMgdbJGaVfkobnGc2uNRWdbOg=; b=GulO4cyVGGamxxIbG7m h6eTBR5VqJOEbCQDRw2XPEF0gdOpD9dqMmekafARaIKrXQTyuh6XtzmaqdAoXwx8 tGRys+k19K/yxaMWx4wqCtUQSUcQXKHcvCJZX+sRbl3zsiAXJ2gKC97FjqqEqy/9 OLKoqiOGORjh1J3mpq4g7izc= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:date:from:in-reply-to:message-id :references:subject:to:x-me-sender:x-me-sender:x-sasl-enc :x-sasl-enc; s=fm1; bh=EISI8m3qTNYJGjaKYqnMgdbJGaVfkobnGc2uNRWdb Og=; b=kPOwcd8HAygm3bsbDIQfYBut9k0RA2MDkkNET2JV0/8rST5ncqAbV0Yi5 HWOhycAdR+UpTSvOQ8yy/HaLbDVVJ7QR3Zmc3eY4hKAr8EjJFMqI0e26NoL0J2cN kTcvxnDdwYfEog/VLjKCzPkpkhCrc0oQuCnVnSBacs42WwNRMGo+DmNcUNN2AuzJ qlI2UDgA5cvgKi//zUFz47BuznaZ6mAcTtD2JCZsTqmbFG0PyWruSsgn3ky9Bm4y hBnW+NB05usnkL+mEYcCjQ/HxPejYRqFiYecaU8c2IyuOWe+SsSAv0n0PEumQyM7 6YSsE+FyFQb9n7GH+TtcN8QKI8BEQ== X-ME-Sender: X-Sasl-enc: hcodvfmp0oCdwxKNwjH5SUTmyb0a4EyUjYY9o1iz/VSx 1493263767 From: "Emilio G. Cota" To: qemu-devel@nongnu.org Date: Wed, 26 Apr 2017 23:29:18 -0400 Message-Id: <1493263764-18657-6-git-send-email-cota@braap.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1493263764-18657-1-git-send-email-cota@braap.org> References: <1493263764-18657-1-git-send-email-cota@braap.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.111.4.28 Subject: [Qemu-devel] [PATCH v4 05/11] tcg/i386: implement goto_ptr op X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Eduardo Habkost , Peter Crosthwaite , Stefan Weil , Alexander Graf , alex.bennee@linaro.org, qemu-arm@nongnu.org, Pranith Kumar , Paolo Bonzini , Aurelien Jarno , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Suggested-by: Richard Henderson Reviewed-by: Richard Henderson Signed-off-by: Emilio G. Cota --- tcg/i386/tcg-target.h | 2 +- tcg/i386/tcg-target.inc.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h index 59d9835..73a15f7 100644 --- a/tcg/i386/tcg-target.h +++ b/tcg/i386/tcg-target.h @@ -107,7 +107,7 @@ extern bool have_popcnt; #define TCG_TARGET_HAS_muls2_i32 1 #define TCG_TARGET_HAS_muluh_i32 0 #define TCG_TARGET_HAS_mulsh_i32 0 -#define TCG_TARGET_HAS_goto_ptr 0 +#define TCG_TARGET_HAS_goto_ptr 1 =20 #if TCG_TARGET_REG_BITS =3D=3D 64 #define TCG_TARGET_HAS_extrl_i64_i32 0 diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c index 5918008..d0bf53a 100644 --- a/tcg/i386/tcg-target.inc.c +++ b/tcg/i386/tcg-target.inc.c @@ -1906,6 +1906,10 @@ static inline void tcg_out_op(TCGContext *s, TCGOpco= de opc, } s->tb_jmp_reset_offset[a0] =3D tcg_current_code_size(s); break; + case INDEX_op_goto_ptr: + /* jmp to the given host address (could be epilogue) */ + tcg_out_modrm(s, OPC_GRP5, EXT5_JMPN_Ev, a0); + break; case INDEX_op_br: tcg_out_jxx(s, JCC_JMP, arg_label(a0), 0); break; @@ -2277,6 +2281,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcod= e opc, =20 static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) { + static const TCGTargetOpDef r =3D { .args_ct_str =3D { "r" } }; static const TCGTargetOpDef ri_r =3D { .args_ct_str =3D { "ri", "r" } = }; static const TCGTargetOpDef re_r =3D { .args_ct_str =3D { "re", "r" } = }; static const TCGTargetOpDef qi_r =3D { .args_ct_str =3D { "qi", "r" } = }; @@ -2299,6 +2304,9 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpc= ode op) =3D { .args_ct_str =3D { "L", "L", "L", "L" } }; =20 switch (op) { + case INDEX_op_goto_ptr: + return &r; + case INDEX_op_ld8u_i32: case INDEX_op_ld8u_i64: case INDEX_op_ld8s_i32: @@ -2567,6 +2575,13 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_modrm(s, OPC_GRP5, EXT5_JMPN_Ev, tcg_target_call_iarg_regs[1]); #endif =20 + /* + * Return path for goto_ptr. Set return value to 0, a-la exit_tb, + * and fall through to the rest of the epilogue. + */ + s->code_gen_epilogue =3D s->code_ptr; + tcg_out_movi(s, TCG_TYPE_REG, TCG_REG_EAX, 0); + /* TB epilogue */ tb_ret_addr =3D s->code_ptr; =20 --=20 2.7.4