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[121.45.122.195]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2d3ac7ca33dsm5988407a91.6.2024.08.16.10.10.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Aug 2024 10:10:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1723828218; x=1724433018; 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=/QpyEkD5hCyf20bjl/PDPkzUK6GQYLJTPRQ87D7+i+w=; b=d/2kc3FTlUTUT3GlcNvPQxIqARcXt3/OhFNUiYbQpxtHAiKGUhAjBPJQ2c27ihHCt9 OJXIJEkKB33cLJJbcyrZueAeG6cEf1Oh3+c76AqByomkNYGVGmHaGz6lZ4Sx3LCOAX+d TFAk9gUnzAm7UVlK1W+eK9A+gWidFpSGZ4y2ASvcdggR77jDlnKGDCOSr1gzdDAo/zEy z9TMdejeHQnbr+4bF61hRigjA/hMnrSb+lOzkholbzHR9lBjBkXoCmcLiB3t4cGQTEjN UrbJ4M78nfJXNtuN7yeQcBso2qmlskP9I85MRKxGlaLHk6RqHVrFkDuDA0zqs/DzTghe YDDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723828218; x=1724433018; 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=/QpyEkD5hCyf20bjl/PDPkzUK6GQYLJTPRQ87D7+i+w=; b=i/ehDtociJHTh7YA554lEodQRJozU/ePljunGffTGKl/zmh6hsaO7lWcpGQxTaBSVS aW6qEanzHLqMtwzGpxqStTVnCgWmq6Lj7k6iyY5+2gDU/50970WKu58SH+EI3RI7WQwY emyBOE7glJnxQgBvHlLL5soJMgQFVdbyPbd1FDzb8s7zgW8E9W3uIIdDAp0JyuIQILM+ tDqJeMxxOdSNkiuZ5+MYVBXzq0nVsM7ypsf0yVS3Faojbp4rHi00c42w1WjkAkuqxlTn m2ZwTrZIcRyLq7d0pkY9TgsevGmdikUu7IxpLN5aOXtuNXKP0EysV9Xxodktxf+jZsQ8 nz8Q== X-Gm-Message-State: AOJu0Yx1ousZzOCZm9K2uYQgAmIcZ09s6/jxUObExkmjCiA3+ka8Xxpg 7+uXUxeCQLqR8FsioP3PUGry6dFDG0cHhopEOw/Q/iyQmSr7Cyp6AEWRsfWB8kA= X-Google-Smtp-Source: AGHT+IH97/l1YXdafw9Awg7EUD49r2KWO3/xqvQtwSnmXQHkZqKP4tGMb662y1+vDeNXn7BIb42hYw== X-Received: by 2002:a17:90b:b07:b0:2d3:dcc1:f98f with SMTP id 98e67ed59e1d1-2d3dffb5360mr4111319a91.10.1723828218023; Fri, 16 Aug 2024 10:10:18 -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 v2 07/17] bsd-user: Add RISC-V signal trampoline setup function Date: Sat, 17 Aug 2024 03:09:39 +1000 Message-Id: <20240816170949.238511-8-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240816170949.238511-1-itachis@FreeBSD.org> References: <20240816170949.238511-1-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::533; envelope-from=itachis6234@gmail.com; helo=mail-pg1-x533.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1723828247629116600 Content-Type: text/plain; charset="utf-8" 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 =3D TARGET_FREEBSD_NR_exit; + + uint32_t sigtramp_code[] =3D { + /* 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 =3D 0; i < 7; i++) { + tswap32s(&sigtramp_code[i]); + } + + return memcpy_to_target(offset, sigtramp_code, TARGET_SZSIGCODE); +} +#endif /* TARGET_ARCH_SIGTRAMP_H */ --=20 2.34.1