From patchwork Fri Aug 2 08:34:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajeet Singh X-Patchwork-Id: 13751250 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 95986C3DA7F for ; Fri, 2 Aug 2024 08:37:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sZnka-0008Nh-0u; Fri, 02 Aug 2024 04:35:00 -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 1sZnkX-0008FN-TB for qemu-devel@nongnu.org; Fri, 02 Aug 2024 04:34:57 -0400 Received: from mail-pf1-x434.google.com ([2607:f8b0:4864:20::434]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sZnkW-0006Sm-9j for qemu-devel@nongnu.org; Fri, 02 Aug 2024 04:34:57 -0400 Received: by mail-pf1-x434.google.com with SMTP id d2e1a72fcca58-70d150e8153so2060114b3a.0 for ; Fri, 02 Aug 2024 01:34:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1722587695; x=1723192495; 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=3NW5Vf8ctLM3k+PwXCXDOXjwI/0K8umnSkecfcCvyd0=; b=HC5cAhEiREV/xGNsRM/914/5KqO+vpTls5gzqo2WZYmUQECPq1Kw2UAknvUtuQKhxO EVgPaNssyBhWyDKHEfX1ETx+HjkEnF4Jp0+gs7ctmNom12KG2e0t6PZwy0DCPR349xQu 1x57+1Lv1cBHyTa9VG7FhPqQZPOUkfjcSkATXkPkKRE2yZsCQFoLyRirvOnViYb/h4Ew 3+PKE9cd6d65QCfNTmrSP/Rtszeliint6MnltMKNas8zElaK+B1s+LCnULSdZ0gmlN1T yYfmizQYQhIseCsPEDm1tPxX+MWyo4LGa9UhTiofqLZrw6vvrx/KAuwzx+5nRnUSqBKZ h8aw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722587695; x=1723192495; 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=3NW5Vf8ctLM3k+PwXCXDOXjwI/0K8umnSkecfcCvyd0=; b=maCALBCyRlRY66588kB1EHNE9cF47dxu3V4KgHGpfR5KCzNz30dsKmMKC6oD6dgxID 2XYgOsMLKznRfmydxIpxDbf6/RWSrUZl1/uUpGjIEoiRM5C8SGT4Tdy5ZQ4UzL+JIHvx 9T1YtwwleiLTyLq+C1XKXtKUuQF7K/LeeaaLYQof9aXhMyMvgrV54WQ5Z8MafZ3Fterx R0zM/XIxfsJTBMlX0qdHr+zPyvJMHrerAuWbAeNCTfn/cTQeQSDFWlDb31r93SmEHWJE a+EVExfOyzQ7zhDVJBm1EpDyfIUunb34KRGBOyqqazRTrcm5np0OXHU3mfLND9kKMyMm Hx+Q== X-Gm-Message-State: AOJu0YyWlPuWFfsQKoCyYaATd9b1ArH7B/2i9vbKFFAbUB7gxUkQTlKM Jg3suFGvM9wtOBCOja4+GxMdhU+3Ajk7PDyJHjTiF5uoWaABAHAB1QwRUoR3DNQ= X-Google-Smtp-Source: AGHT+IFvAJu05tNTzClhqDKz/gQOsEIDDYrTD+8KcxoWB1Vh0tQ30ZNd/7VToU10F2DxS9rtgYZHog== X-Received: by 2002:a05:6a00:66e7:b0:70d:2208:c98e with SMTP id d2e1a72fcca58-7106d8d6efcmr4361867b3a.0.1722587694611; Fri, 02 Aug 2024 01:34:54 -0700 (PDT) Received: from localhost.localdomain ([203.87.101.91]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7106ec06a25sm951673b3a.33.2024.08.02.01.34.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Aug 2024 01:34:54 -0700 (PDT) From: Ajeet Singh X-Google-Original-From: Ajeet Singh To: qemu-devel@nongnu.org Cc: Warner Losh , Mark Corbin , Ajeet Singh Subject: [PATCH 08/18] bsd-user: Add RISC-V signal trampoline setup function Date: Fri, 2 Aug 2024 18:34:13 +1000 Message-Id: <20240802083423.142365-9-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240802083423.142365-1-itachis@FreeBSD.org> References: <20240802083423.142365-1-itachis@FreeBSD.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=itachis6234@gmail.com; helo=mail-pf1-x434.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+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 | 46 +++++++++++++++++++++++++++ 1 file changed, 46 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..39c878db22 --- /dev/null +++ b/bsd-user/riscv/target_arch_sigtramp.h @@ -0,0 +1,46 @@ +/* + * 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; + + uint32_t sigtramp_code[] = { + /* 1 */ 0x00010513, /* mv a0, sp */ + /* 2 */ 0x00050513 + (sigf_uc << 20), /* addi a0, a0, sigf_uc */ + /* 3 */ 0x00000293 + (sys_sigreturn << 20), /* li t0, sys_sigreturn */ + /* 4 */ 0x00000073, /* ecall */ + /* 5 */ 0x00000293 + (sys_exit << 20), /* li t0, sys_exit */ + /* 6 */ 0x00000073, /* ecall */ + /* 7 */ 0xFF1FF06F /* b -16 */ + }; + + for (i = 0; i < 7; i++) { + tswap32s(&sigtramp_code[i]); + } + + return memcpy_to_target(offset, sigtramp_code, TARGET_SZSIGCODE); +} +#endif /* TARGET_ARCH_SIGTRAMP_H */