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[14.200.149.22]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-207946f34c1sm22554335ad.184.2024.09.15.08.26.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Sep 2024 08:26:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1726414015; x=1727018815; 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=gy74LlRTmtwc1XLq4kdnjaS7OlYM0YhDmnWN/nXgpX8=; b=l8KBLw7gczQDl1hfyBEIlFf0GgGntPZV5aqAYDQ2Yx3t0zWTLuOe+xKXcZrFDg/pFY HN/+6xm/ayNLelalJrgk2lIkd5A396Ek6r+bOM2DxvTJcivVnPGNJqWb0dVezwWxzyLp pdpjJEt0FdQNyIJGjm8HXddjWWH3oVdHCdQ55QDzkA5v1dKqpzHAS/d8LLTX1F9FQ3Vs ShfmyAt8UOM/19FCi0v+saFzBqePHzqEEuc5qMuSY2/3kjbLF6WnMuGpBW32Fu9rUENU y58LbrGzAngfVhVaRzWXQH/tGoOdzmX+ljBkMJCaIPI7RPqIF6x+SHKweLD/C7TrvqDC LyfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726414015; x=1727018815; 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=gy74LlRTmtwc1XLq4kdnjaS7OlYM0YhDmnWN/nXgpX8=; b=DLFuH85oWdbckO2VzJcNmf3v/WY+VUk1pI3yEasErW7/JaCKgcCK4rTOI1IfhGOkqr M7O4Jk0Md2imEog/EabRvWulk2tyc9XKugbdHsO5PDnhgvE1F/0gvgdpICCqUMsamRi6 sXVD/uLvtBUdh4nI4fcmwp2Ki21WdQORzzL81LScUSzUN+ABcH1e0+rulhR1w7krvycs yhLLQa8MdETRvB2tzq7poykQjRDLhrDXrFvNMbQmcMYosvzv/uODub0ICuubsEl1mp9x D6n0Y0mPUQ1qGnrwc5jwCFm8T7EP8mT6EN84HMbO+VQ0ItaQQUYNgID9p0KODAh4Hj83 ks6A== X-Gm-Message-State: AOJu0YyTeZLZmIIxxTUXhHZ37n49+mL1axwavN/baFjebM+uAbLWCUS6 z8JGICp9tycjDtp1deAkc0/DMvHnNYOkG98p7WfuEmxtB3cNcT98PMx0OA== X-Google-Smtp-Source: AGHT+IHau58JLY6Ku78VHDiG8lI6bEgv1JT5MyREJC1gNngDW8GMmQs7Qj0Bt5JBSf+soxAw6ti3XQ== X-Received: by 2002:a17:902:db0f:b0:1fb:7c7f:6458 with SMTP id d9443c01a7336-2078243596dmr163949055ad.32.1726414015027; Sun, 15 Sep 2024 08:26:55 -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 v6 15/17] bsd-user: Implement 'get_mcontext' for RISC-V Date: Mon, 16 Sep 2024 01:25:52 +1000 Message-Id: <20240915152554.8394-16-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240915152554.8394-1-itachis@FreeBSD.org> References: <20240915152554.8394-1-itachis@FreeBSD.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::632; envelope-from=itachis6234@gmail.com; helo=mail-pl1-x632.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 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 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1726414179792116600 Content-Type: text/plain; charset="utf-8" From: Mark Corbin Added the 'get_mcontext' function to extract and populate the RISC-V machine context from the CPU state. This function is used to gather the current state of the general-purpose registers and store it in a 'target_mcontext_' structure. Signed-off-by: Mark Corbin Signed-off-by: Ajeet Singh Signed-off-by: Warner Losh Co-authored-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/riscv/signal.c | 53 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/bsd-user/riscv/signal.c b/bsd-user/riscv/signal.c index 2597fec2fd..072ad821d2 100644 --- a/bsd-user/riscv/signal.c +++ b/bsd-user/riscv/signal.c @@ -61,3 +61,56 @@ abi_long setup_sigframe_arch(CPURISCVState *env, abi_ulo= ng frame_addr, get_mcontext(env, mcp, flags); return 0; } + +/* + * Compare with get_mcontext() in riscv/riscv/machdep.c + * Assumes that the memory is locked if mcp points to user memory. + */ +abi_long get_mcontext(CPURISCVState *regs, target_mcontext_t *mcp, + int flags) +{ + + mcp->mc_gpregs.gp_t[0] =3D tswap64(regs->gpr[5]); + mcp->mc_gpregs.gp_t[1] =3D tswap64(regs->gpr[6]); + mcp->mc_gpregs.gp_t[2] =3D tswap64(regs->gpr[7]); + mcp->mc_gpregs.gp_t[3] =3D tswap64(regs->gpr[28]); + mcp->mc_gpregs.gp_t[4] =3D tswap64(regs->gpr[29]); + mcp->mc_gpregs.gp_t[5] =3D tswap64(regs->gpr[30]); + mcp->mc_gpregs.gp_t[6] =3D tswap64(regs->gpr[31]); + + mcp->mc_gpregs.gp_s[0] =3D tswap64(regs->gpr[8]); + mcp->mc_gpregs.gp_s[1] =3D tswap64(regs->gpr[9]); + mcp->mc_gpregs.gp_s[2] =3D tswap64(regs->gpr[18]); + mcp->mc_gpregs.gp_s[3] =3D tswap64(regs->gpr[19]); + mcp->mc_gpregs.gp_s[4] =3D tswap64(regs->gpr[20]); + mcp->mc_gpregs.gp_s[5] =3D tswap64(regs->gpr[21]); + mcp->mc_gpregs.gp_s[6] =3D tswap64(regs->gpr[22]); + mcp->mc_gpregs.gp_s[7] =3D tswap64(regs->gpr[23]); + mcp->mc_gpregs.gp_s[8] =3D tswap64(regs->gpr[24]); + mcp->mc_gpregs.gp_s[9] =3D tswap64(regs->gpr[25]); + mcp->mc_gpregs.gp_s[10] =3D tswap64(regs->gpr[26]); + mcp->mc_gpregs.gp_s[11] =3D tswap64(regs->gpr[27]); + + mcp->mc_gpregs.gp_a[0] =3D tswap64(regs->gpr[10]); + mcp->mc_gpregs.gp_a[1] =3D tswap64(regs->gpr[11]); + mcp->mc_gpregs.gp_a[2] =3D tswap64(regs->gpr[12]); + mcp->mc_gpregs.gp_a[3] =3D tswap64(regs->gpr[13]); + mcp->mc_gpregs.gp_a[4] =3D tswap64(regs->gpr[14]); + mcp->mc_gpregs.gp_a[5] =3D tswap64(regs->gpr[15]); + mcp->mc_gpregs.gp_a[6] =3D tswap64(regs->gpr[16]); + mcp->mc_gpregs.gp_a[7] =3D tswap64(regs->gpr[17]); + + if (flags & TARGET_MC_GET_CLEAR_RET) { + mcp->mc_gpregs.gp_a[0] =3D 0; /* a0 */ + mcp->mc_gpregs.gp_a[1] =3D 0; /* a1 */ + mcp->mc_gpregs.gp_t[0] =3D 0; /* clear syscall error */ + } + + mcp->mc_gpregs.gp_ra =3D tswap64(regs->gpr[1]); + mcp->mc_gpregs.gp_sp =3D tswap64(regs->gpr[2]); + mcp->mc_gpregs.gp_gp =3D tswap64(regs->gpr[3]); + mcp->mc_gpregs.gp_tp =3D tswap64(regs->gpr[4]); + mcp->mc_gpregs.gp_sepc =3D tswap64(regs->pc); + + return 0; +} --=20 2.34.1