From patchwork Fri Aug 4 05:44:09 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 9880551 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C479460360 for ; Fri, 4 Aug 2017 05:45:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BC32528953 for ; Fri, 4 Aug 2017 05:45:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B0177289A3; Fri, 4 Aug 2017 05:45:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3EA4028953 for ; Fri, 4 Aug 2017 05:45:55 +0000 (UTC) Received: from localhost ([::1]:36654 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ddVQo-0003wb-EH for patchwork-qemu-devel@patchwork.kernel.org; Fri, 04 Aug 2017 01:45:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59534) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ddVPZ-0003rb-Bt for qemu-devel@nongnu.org; Fri, 04 Aug 2017 01:44:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ddVPW-0003Az-UC for qemu-devel@nongnu.org; Fri, 04 Aug 2017 01:44:37 -0400 Received: from mail-pg0-x243.google.com ([2607:f8b0:400e:c05::243]:37013) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ddVPW-00038r-MN for qemu-devel@nongnu.org; Fri, 04 Aug 2017 01:44:34 -0400 Received: by mail-pg0-x243.google.com with SMTP id 83so821932pgb.4 for ; Thu, 03 Aug 2017 22:44:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:subject:date:message-id:in-reply-to:references; bh=X/0Co6YW9K1lstOeC237kzVIM42M5nyF0b897QyeSKE=; b=jqGLG4sAeFVdowsIuLoGgG2BFeacr4PsR1bYTpRYdMqxWMHVC3+0MpaYX8YOaJfrMb bJADp3Ch0ntkNRRuE+cQ0eAITrCyIis3jA3/K/Yb7E+TGZBya9jeNhcOOEiDbDlIJxnZ 0gQ6mZVza1RtwLHgs7dmJyyZaSd918JrNpnJqhhwt5i/4KJx0LipjzAGyDz2EsjHKRas lgQ1xsa2Mn+EljK9D1WHh7pw/uaSfG0eL+QVG8XTAxTl873AyYyrY3zKspjlFnEkdu4V q5oQ4LM+R7Rw7yvLeCBB7sFuoRGJSoCZzWtqxKiha2Zp7pannLTkfasrVfcRK8BzDYOL AYUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:subject:date:message-id :in-reply-to:references; bh=X/0Co6YW9K1lstOeC237kzVIM42M5nyF0b897QyeSKE=; b=j0EqWH9Knvq1F5go12RSCBYEmFX4aKC4Xwg0zv2e7GG1tMwn9+d0Ic7TdCgCdDyeVG /FX/+/74u9fY0CsSwM1hkfps43IHvaMPyong8KjTwyVTP14vmY+PTsVe62qS+CIEtriW /VnJo6eIysRWSLJQ8CPtLdXtugY5HNagQ/g6h8vHxtZoesy3oYMZWptEduwdXsxWpojI IOYZfQSRvD6grgqnm7Z22K8gC7l2oJAJReJttG7oc6C8QZ6gg3nIIHSOuX/QWBcDWzbn bOkmNWLF0fR2YkTJnNy0KCt70cFZz8GiI9f3j+JZ3tQ/e6tAtqQRdTgLCsrNsw98H2QC rnkA== X-Gm-Message-State: AIVw110wXKtYOReENEh0IrNOKYMamzALQo6aQdtgoNeZikmsueo6M5d2 VjbH7qhY64qz8U3zytY= X-Received: by 10.84.171.195 with SMTP id l61mr1452096plb.464.1501825473469; Thu, 03 Aug 2017 22:44:33 -0700 (PDT) Received: from bigtime.twiddle.net (97-126-108-236.tukw.qwest.net. [97.126.108.236]) by smtp.gmail.com with ESMTPSA id o14sm1061063pfi.158.2017.08.03.22.44.32 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Aug 2017 22:44:32 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Thu, 3 Aug 2017 22:44:09 -0700 Message-Id: <20170804054426.10590-7-rth@twiddle.net> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20170804054426.10590-1-rth@twiddle.net> References: <20170804054426.10590-1-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c05::243 Subject: [Qemu-devel] [PATCH for-2.11 06/23] tcg/s390: Fix sign of patch_reloc addend 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: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We were passing in -2 instead of +2, but then ignoring the actual contents of addend in the calculation. Signed-off-by: Richard Henderson --- tcg/s390/tcg-target.inc.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c index e007586315..59c0da0922 100644 --- a/tcg/s390/tcg-target.inc.c +++ b/tcg/s390/tcg-target.inc.c @@ -360,21 +360,22 @@ uint64_t s390_facilities; static void patch_reloc(tcg_insn_unit *code_ptr, int type, intptr_t value, intptr_t addend) { - intptr_t pcrel2 = (tcg_insn_unit *)value - (code_ptr - 1); - tcg_debug_assert(addend == -2); + intptr_t pcrel2; + + value += addend; + pcrel2 = (tcg_insn_unit *)value - code_ptr; switch (type) { case R_390_PC16DBL: - tcg_debug_assert(pcrel2 == (int16_t)pcrel2); + assert(pcrel2 == (int16_t)pcrel2); tcg_patch16(code_ptr, pcrel2); break; case R_390_PC32DBL: - tcg_debug_assert(pcrel2 == (int32_t)pcrel2); + assert(pcrel2 == (int32_t)pcrel2); tcg_patch32(code_ptr, pcrel2); break; default: - tcg_abort(); - break; + g_assert_not_reached(); } } @@ -1270,11 +1271,11 @@ static void tgen_branch(TCGContext *s, int cc, TCGLabel *l) tgen_gotoi(s, cc, l->u.value_ptr); } else if (USE_LONG_BRANCHES) { tcg_out16(s, RIL_BRCL | (cc << 4)); - tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, l, -2); + tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, l, 2); s->code_ptr += 2; } else { tcg_out16(s, RI_BRC | (cc << 4)); - tcg_out_reloc(s, s->code_ptr, R_390_PC16DBL, l, -2); + tcg_out_reloc(s, s->code_ptr, R_390_PC16DBL, l, 2); s->code_ptr += 1; } } @@ -1289,7 +1290,7 @@ static void tgen_compare_branch(TCGContext *s, S390Opcode opc, int cc, } else { /* We need to keep the offset unchanged for retranslation. */ off = s->code_ptr[1]; - tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, -2); + tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2); } tcg_out16(s, (opc & 0xff00) | (r1 << 4) | r2); @@ -1307,7 +1308,7 @@ static void tgen_compare_imm_branch(TCGContext *s, S390Opcode opc, int cc, } else { /* We need to keep the offset unchanged for retranslation. */ off = s->code_ptr[1]; - tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, -2); + tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2); } tcg_out16(s, (opc & 0xff00) | (r1 << 4) | cc); @@ -1571,7 +1572,7 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) TCGMemOpIdx oi = lb->oi; TCGMemOp opc = get_memop(oi); - patch_reloc(lb->label_ptr[0], R_390_PC16DBL, (intptr_t)s->code_ptr, -2); + patch_reloc(lb->label_ptr[0], R_390_PC16DBL, (intptr_t)s->code_ptr, 2); tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_AREG0); if (TARGET_LONG_BITS == 64) { @@ -1592,7 +1593,7 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) TCGMemOpIdx oi = lb->oi; TCGMemOp opc = get_memop(oi); - patch_reloc(lb->label_ptr[0], R_390_PC16DBL, (intptr_t)s->code_ptr, -2); + patch_reloc(lb->label_ptr[0], R_390_PC16DBL, (intptr_t)s->code_ptr, 2); tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_AREG0); if (TARGET_LONG_BITS == 64) {