From patchwork Wed Aug 28 09:52:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajeet Singh X-Patchwork-Id: 13781023 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 67F26C5479A for ; Wed, 28 Aug 2024 09:55:58 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sjFMy-0003xN-N3; Wed, 28 Aug 2024 05:53:40 -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 1sjFMx-0003r4-3e for qemu-devel@nongnu.org; Wed, 28 Aug 2024 05:53:39 -0400 Received: from mail-oo1-xc2a.google.com ([2607:f8b0:4864:20::c2a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sjFMv-0001qr-JU for qemu-devel@nongnu.org; Wed, 28 Aug 2024 05:53:38 -0400 Received: by mail-oo1-xc2a.google.com with SMTP id 006d021491bc7-5da686531d3so5092679eaf.3 for ; Wed, 28 Aug 2024 02:53:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724838816; x=1725443616; 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=9FVE9uwE5SGNsSu9ob6L64WLDml4rbiZ/hyx7tyV/IQ=; b=IKBsic42fRyfnnfVFwpJCQiyT3Cgizw8TBWnEEKl0TJ+xB0UBGEgv9x3RU/r+Zsovq pNOSDv8fjGW6piCXMuZYYt7r0pczQjIW3Q5Z/esbrOSFdv48QxxLmytn6IIcxIGyZJPE gfuLeQkUiD1L9KZ2q5ZASNwVi6VwDMLiy3weDWvSHy3wM4FUhR+LqgQ2HABGjTxn/i6e AgDgnQ30Ob+Vod55CCOFIhqaw2Em8frQK47HFD96mCtwgLjHf1xwNGOnbAOccDSKo3Wj O/HqPBjstQ4NMMC2+wmlfvLn3O0q4oAQW3FdDBszKjbHs4kaZAhe1v9lBEOHDWVT8LQM ielw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724838816; x=1725443616; 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=9FVE9uwE5SGNsSu9ob6L64WLDml4rbiZ/hyx7tyV/IQ=; b=GpCUNlW2lIbmaLmZk0QWKB12wa856rNOe+jVeB/Y+akU+sWrs774PMKYucmdK9lYhD IsonIYvcZjler6h842gJ209P+M9uve60KHfRh6ja6n2pWAGkNBdmw5DYqDKbfnOH+I74 nXeRB4w2oYe/vkqr5PWEYWmFxQ5MnAN5IGjh2yvtlubTpvEfDaQsD1MRuVmvjsMjGp4W TFkE8AY6WaSniTx1FzDBI4X3PvpGe0NdV//02GEzN6cMoLReZKzqVWXKnXu6qEBiEoGF Va0CnUIGXI4T+/23ssoVY6bGRI4JK75omKDRwBp9/6wtlJHqfrUkL5UqzmtlX2D3WJ8M Kp8w== X-Gm-Message-State: AOJu0YxzvtMhIycE4ur0qbBxepHdX2hxHxCOj0zlPCLSHs6DS13mIw3d o9fkkZAUJIV+U1sPB8vsV3W8pl/5O9CBTkJ4Z3d4omv/676yJd0j+HEmCg== X-Google-Smtp-Source: AGHT+IHR+mVWu+8f4uV9yDbglWqT0a7Hw5K/+g4Rp9SbCBYcuNeahjokD+i/+bfrKiTDqXgVcxAr9Q== X-Received: by 2002:a05:6358:d39b:b0:1b5:e9d4:66f4 with SMTP id e5c5f4694b2df-1b5e9d467eemr733723255d.9.1724838816173; Wed, 28 Aug 2024 02:53:36 -0700 (PDT) Received: from localhost.localdomain ([220.253.126.131]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7143430f6e7sm9787508b3a.160.2024.08.28.02.53.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2024 02:53:35 -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 16/17] bsd-user: Implement set_mcontext and get_ucontext_sigreturn for RISCV Date: Wed, 28 Aug 2024 19:52:42 +1000 Message-Id: <20240828095243.90491-17-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=2607:f8b0:4864:20::c2a; envelope-from=itachis6234@gmail.com; helo=mail-oo1-xc2a.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 Added implementations for 'set_mcontext' and 'get_ucontext_sigreturn' functions for RISC-V architecture, Both functions ensure that the CPU state and user context are properly managed. Signed-off-by: Mark Corbin Signed-off-by: Warner Losh Signed-off-by: Ajeet Singh Co-authored-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/riscv/signal.c | 54 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) diff --git a/bsd-user/riscv/signal.c b/bsd-user/riscv/signal.c index 072ad821d2..10c940cd49 100644 --- a/bsd-user/riscv/signal.c +++ b/bsd-user/riscv/signal.c @@ -114,3 +114,57 @@ abi_long get_mcontext(CPURISCVState *regs, target_mcontext_t *mcp, return 0; } + +/* Compare with set_mcontext() in riscv/riscv/exec_machdep.c */ +abi_long set_mcontext(CPURISCVState *regs, target_mcontext_t *mcp, + int srflag) +{ + + regs->gpr[5] = tswap64(mcp->mc_gpregs.gp_t[0]); + regs->gpr[6] = tswap64(mcp->mc_gpregs.gp_t[1]); + regs->gpr[7] = tswap64(mcp->mc_gpregs.gp_t[2]); + regs->gpr[28] = tswap64(mcp->mc_gpregs.gp_t[3]); + regs->gpr[29] = tswap64(mcp->mc_gpregs.gp_t[4]); + regs->gpr[30] = tswap64(mcp->mc_gpregs.gp_t[5]); + regs->gpr[31] = tswap64(mcp->mc_gpregs.gp_t[6]); + + regs->gpr[8] = tswap64(mcp->mc_gpregs.gp_s[0]); + regs->gpr[9] = tswap64(mcp->mc_gpregs.gp_s[1]); + regs->gpr[18] = tswap64(mcp->mc_gpregs.gp_s[2]); + regs->gpr[19] = tswap64(mcp->mc_gpregs.gp_s[3]); + regs->gpr[20] = tswap64(mcp->mc_gpregs.gp_s[4]); + regs->gpr[21] = tswap64(mcp->mc_gpregs.gp_s[5]); + regs->gpr[22] = tswap64(mcp->mc_gpregs.gp_s[6]); + regs->gpr[23] = tswap64(mcp->mc_gpregs.gp_s[7]); + regs->gpr[24] = tswap64(mcp->mc_gpregs.gp_s[8]); + regs->gpr[25] = tswap64(mcp->mc_gpregs.gp_s[9]); + regs->gpr[26] = tswap64(mcp->mc_gpregs.gp_s[10]); + regs->gpr[27] = tswap64(mcp->mc_gpregs.gp_s[11]); + + regs->gpr[10] = tswap64(mcp->mc_gpregs.gp_a[0]); + regs->gpr[11] = tswap64(mcp->mc_gpregs.gp_a[1]); + regs->gpr[12] = tswap64(mcp->mc_gpregs.gp_a[2]); + regs->gpr[13] = tswap64(mcp->mc_gpregs.gp_a[3]); + regs->gpr[14] = tswap64(mcp->mc_gpregs.gp_a[4]); + regs->gpr[15] = tswap64(mcp->mc_gpregs.gp_a[5]); + regs->gpr[16] = tswap64(mcp->mc_gpregs.gp_a[6]); + regs->gpr[17] = tswap64(mcp->mc_gpregs.gp_a[7]); + + + regs->gpr[1] = tswap64(mcp->mc_gpregs.gp_ra); + regs->gpr[2] = tswap64(mcp->mc_gpregs.gp_sp); + regs->gpr[3] = tswap64(mcp->mc_gpregs.gp_gp); + regs->gpr[4] = tswap64(mcp->mc_gpregs.gp_tp); + regs->pc = tswap64(mcp->mc_gpregs.gp_sepc); + + return 0; +} + +/* Compare with sys_sigreturn() in riscv/riscv/machdep.c */ +abi_long get_ucontext_sigreturn(CPURISCVState *regs, + abi_ulong target_sf, abi_ulong *target_uc) +{ + + *target_uc = target_sf; + return 0; +}