From patchwork Sat Aug 24 04:56:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajeet Singh X-Patchwork-Id: 13776308 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 CA207C5472C for ; Sat, 24 Aug 2024 04:58:36 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1shiqG-0008On-86; Sat, 24 Aug 2024 00:57:36 -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 1shiqE-0008Hc-Ew for qemu-devel@nongnu.org; Sat, 24 Aug 2024 00:57:34 -0400 Received: from mail-oa1-x29.google.com ([2001:4860:4864:20::29]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1shiqC-0002K4-VB for qemu-devel@nongnu.org; Sat, 24 Aug 2024 00:57:34 -0400 Received: by mail-oa1-x29.google.com with SMTP id 586e51a60fabf-26fde6117cfso2040668fac.1 for ; Fri, 23 Aug 2024 21:57:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724475451; x=1725080251; 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=HBveA9HR89dzAdmLNGGCih1TYzzp+ahXTDrxSQcRf0l6tZ/jdil/V20qC01RPYH2y0 dsrl712pCxozaFCK6uFIb2DXleWP6spNSr/wJTNQ0T6+0X2V048BiR1k/v5Awq7kTkej f3Zv97gtVXnzlW6WTAeQkrFG9qhOWBzzEbIlKfKmLkI6AIVAUCj9tPLq00K0LrYRov+u C11UrpDhY4tlTmE86Td1xJI7Pu87WNehJ8lUaDApFawLOAnhB0ZqkgziztCbVWFWwqi+ fGZ7i72TBUwLcsNNsll7pU9GTFShUYfXbp5828P5SgnwIBHxWGuyMihJAmKwn3Pwb3Vj UOrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724475451; x=1725080251; 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=wWQfwD7pIwx1AM+vp0PQP00U9wkfLBqxHVHQ1hSahbF46FiBZ+FZUf7SVtxNkfGr2y HSb2ThZs7n+u7KwYyLkBnpR3ekesNgU5XU6tMgzDoHCMqmf0EBIIuYGjnPlxXoPy/rkG 719oxxRCk9tvsTPtjR48tnVxvGo0d7hT623m3AdvKqaELisljlXmMFxS1QeGDJz0RiGP PSeExoFRdzsWcRBlAO+9EAjQodOMD0XdjuftOjrnZPtqFe537dFRReVdxJOmoObidpS5 2kMfR1KDFXO9wRzCAHi6cf3g0kAk1BoHTUqHr1dYnIOZmMFSAInkoA49F7Fm6k2v4l2B PdlQ== X-Gm-Message-State: AOJu0Yy7NqNP5q5iam1JeYVtSau8n8N8qYFR/PDdmr40wiTSLK3VxH9v FytStTRbqk+iIEgoNtwolGeOvlsubfEnqNDmYxnL3KQ+iYS6Kq+7j+BHlQjshhY= X-Google-Smtp-Source: AGHT+IFIdxD8Agzgja6YuScIQ4Xmtv6kFGqmjFMpf6Xctb07loH/sIG4TzDTeoVj0NfYJObE3AW+QA== X-Received: by 2002:a05:6870:c6a1:b0:260:3c34:bc60 with SMTP id 586e51a60fabf-273e64e6b16mr4887547fac.17.1724475451363; Fri, 23 Aug 2024 21:57:31 -0700 (PDT) Received: from localhost.localdomain ([220.253.126.131]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7143422ecedsm3805934b3a.25.2024.08.23.21.57.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Aug 2024 21:57:31 -0700 (PDT) From: Ajeet Singh X-Google-Original-From: Ajeet Singh To: qemu-devel@nongnu.org Cc: Warner Losh , Mark Corbin , Ajeet Singh , Richard Henderson Subject: [PATCH v3 16/17] bsd-user: Implement set_mcontext and get_ucontext_sigreturn for RISCV Date: Sat, 24 Aug 2024 14:56:34 +1000 Message-Id: <20240824045635.8978-17-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240824045635.8978-1-itachis@FreeBSD.org> References: <20240824045635.8978-1-itachis@FreeBSD.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2001:4860:4864:20::29; envelope-from=itachis6234@gmail.com; helo=mail-oa1-x29.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; +}