From patchwork Wed Aug 28 09:52:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajeet Singh X-Patchwork-Id: 13781025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA9F6C5479A for ; Wed, 28 Aug 2024 09:56:57 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sjFMa-0002OE-Dt; Wed, 28 Aug 2024 05:53:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sjFMY-0002HJ-Rx for qemu-devel@nongnu.org; Wed, 28 Aug 2024 05:53:14 -0400 Received: from mail-oa1-x36.google.com ([2001:4860:4864:20::36]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sjFMX-0001p3-1E for qemu-devel@nongnu.org; Wed, 28 Aug 2024 05:53:14 -0400 Received: by mail-oa1-x36.google.com with SMTP id 586e51a60fabf-2704d461058so4490188fac.0 for ; Wed, 28 Aug 2024 02:53:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724838791; x=1725443591; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=mQk2A/hTjmVjUN/uDmSNUdNIQXXqerO9SIB89nvt1XM=; b=K7FX7Gt2n7Yao//0xJXu/zTrGHvJswwg3G+JgBNpN1F8S3zh/Iwefyf4xAtYFA7dpe 4GAx1wWy0ltm4Lmq15VYpasbRA3pj3AaMVqPpfXxYypWYO46jT4zZPW/B+LGeoU7+kjD pzErsSgsxtw4HjSJF79t7BYL0E6/din7FAnWrOAfmICOgdgMnWXV2To9X1QoZ8Q7xqWn upKKxio2ZJoHiIRu2XvGLDJtmPmTD6wF5ZkNHB48GOEF9igcn1Lz7j+fPqOFxfdD8cGh CZwosXKLp7+ubKUhhQX67J14W73FJ+aDL0lbv0DPYI1y2PgIEiTVSp6rkE+exlVXV3aB Q41w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724838791; x=1725443591; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mQk2A/hTjmVjUN/uDmSNUdNIQXXqerO9SIB89nvt1XM=; b=XpF02S9W4fwP9UmLynjf6OFBDICx9AcPPk0tXBsLo7hPgpOqkbW69F6966kvxpASav yrJjqEwnyHpYED+qz77LI3IFNmmUk3wF2PYwbdS0EeDMBgI0U7scVDsajE3A1p788GLN oq2xN4HdBisket7IS+h0UmS0/5osgtOXfpIeKDBESrEWix7zkHc07g/XD1m+gA/HV3v4 Nkjrky0CK+llKZzfdVdAyuYXqbSV9roiW7aVtaSOcBJx0tBEhPuv/eE7+UylO3UR5UaG OfiK7SdOfknUEhbSEtdZ2c3ml1POyysOHoop3WV4RfEUnR3wJZHKFNnHlJ07P7hKEIFl Xq4w== X-Gm-Message-State: AOJu0Yx19l4OxwcYLiGMzZ44nh0BHOyaP/Pnw2JS2+UZAiuDn40XV7L2 EGxPZexfySJbo6P0ph6bFO3XvjCgS9YgQyqL2sbCYXf/tCr+QwN71rgi9Ylf X-Google-Smtp-Source: AGHT+IEBYdz0kwr9sC/X0GP0Yi1PlyHTXTgcSqIleC5qpHghXH4OkPjles+onTsrHFn601Q/h5mmTQ== X-Received: by 2002:a05:6870:8286:b0:270:130f:cee0 with SMTP id 586e51a60fabf-273e661aeadmr17559877fac.39.1724838791525; Wed, 28 Aug 2024 02:53:11 -0700 (PDT) Received: from localhost.localdomain ([220.253.126.131]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7143430f6e7sm9787508b3a.160.2024.08.28.02.53.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2024 02:53:11 -0700 (PDT) From: Ajeet Singh X-Google-Original-From: Ajeet Singh To: qemu-devel@nongnu.org Cc: Mark Corbin , Warner Losh , Ajeet Singh , Richard Henderson Subject: [PATCH v4 07/17] bsd-user: Add RISC-V signal trampoline setup function Date: Wed, 28 Aug 2024 19:52:33 +1000 Message-Id: <20240828095243.90491-8-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240828095243.90491-1-itachis@FreeBSD.org> References: <20240828095243.90491-1-itachis@FreeBSD.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2001:4860:4864:20::36; envelope-from=itachis6234@gmail.com; helo=mail-oa1-x36.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Mark Corbin Implemented the 'setup_sigtramp' function for setting up the signal trampoline code in the RISC-V architecture. Signed-off-by: Mark Corbin Signed-off-by: Ajeet Singh Reviewed-by: Richard Henderson --- bsd-user/riscv/target_arch_sigtramp.h | 42 +++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 bsd-user/riscv/target_arch_sigtramp.h diff --git a/bsd-user/riscv/target_arch_sigtramp.h b/bsd-user/riscv/target_arch_sigtramp.h new file mode 100644 index 0000000000..fce673e65a --- /dev/null +++ b/bsd-user/riscv/target_arch_sigtramp.h @@ -0,0 +1,42 @@ +/* + * RISC-V sigcode + * + * Copyright (c) 2019 Mark Corbin + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#ifndef TARGET_ARCH_SIGTRAMP_H +#define TARGET_ARCH_SIGTRAMP_H + +/* Compare with sigcode() in riscv/riscv/locore.S */ +static inline abi_long setup_sigtramp(abi_ulong offset, unsigned sigf_uc, + unsigned sys_sigreturn) +{ + int i; + uint32_t sys_exit = TARGET_FREEBSD_NR_exit; + + static const uint32_t sigtramp_code[] = { + /* 1 */ const_le32(0x00010513), /* mv a0, sp */ + /* 2 */ const_le32(0x00050513 + (sigf_uc << 20)), /* addi a0, a0, sigf_uc */ + /* 3 */ const_le32(0x00000293 + (sys_sigreturn << 20)), /* li t0, sys_sigreturn */ + /* 4 */ const_le32(0x00000073), /* ecall */ + /* 5 */ const_le32(0x00000293 + (sys_exit << 20)), /* li t0, sys_exit */ + /* 6 */ const_le32(0x00000073), /* ecall */ + /* 7 */ const_le32(0xFF1FF06F) /* b -16 */ + }; + + return memcpy_to_target(offset, sigtramp_code, TARGET_SZSIGCODE); +} +#endif /* TARGET_ARCH_SIGTRAMP_H */