From patchwork Wed Nov 14 17:27:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 151099 Delivered-To: patch@linaro.org Received: by 2002:a2e:299d:0:0:0:0:0 with SMTP id p29-v6csp5964051ljp; Wed, 14 Nov 2018 09:29:15 -0800 (PST) X-Google-Smtp-Source: AJdET5dwu1y0/Dc4yIa5wtwNltMSYsmNUcXhO8RhOmbVPodfWfQ2jLF4Ol5V8ELC1nDu7EV25RCH X-Received: by 2002:ac8:4258:: with SMTP id r24mr2683817qtm.213.1542216555759; Wed, 14 Nov 2018 09:29:15 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1542216555; cv=none; d=google.com; s=arc-20160816; b=Qe+dc9YHuH2VdZGkuady4p6CdZ7RkJiqbLADz+c37g+EkFrFvWjA8FuFesOjicb86L sbLGdWsaneO01NeNvou+JDwOgpSJ5BQ8TpFWPewJd+I4bNoAb7BHVdYRH/Shh+LE0ciN or/5zRRykc8BNyWd4Ntkq76dtoi/MK+bbqajWaNEEMRr3Y8D9sI74OILgBElFXnljisj EekRzSBXlrDWVCu8WdKpnPVV0HFHWw5VXIgUs7l0tKwOnE8mcwOttNmnOREl8X6QnomR 4IyQnDKF4CoMPdsbBE4OVtkQVhWygsYw1AC/Ae1R/aBU8YPI74ILJ5sPUQ+VMzrFddjd m30g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version:cc:reply-to :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:references:in-reply-to:message-id:date:subject :to:from; bh=Z0WTfoUVWNU7ckGgsxYcqIVHdjLX920f2NGoN52eDA0=; b=NReLR8VOdpekvLnxblQTSIysOB2etCcx70v7KFaceZTcdpILgMqIjo0D9SQoYqcKhC NuuVN1TOmJqksYQluad+LrWOQVhOYSHogNv27UpGwNH6eJsmZmX8uFRYbxTnt7W6i+np jM8KOvxaXZufuViW3igTF/2SR1XUHAdQHZPbZfxy6dqY65/b9ytmtFet4nMx2OLawB4B vDhe997URO2KBlbkHlBVgZsgWpaZET5GHIRsLL48gt/Yum6gZBIOLV5WubokGZxyuhj6 Z+HVlFkfJ7lmSckYkRlH/NjsDYYQVRuYDM/V50OuVAKXZygdfA2PlqqdU3PGJhf+vY3U verg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of grub-devel-bounces+patch=linaro.org@gnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom="grub-devel-bounces+patch=linaro.org@gnu.org" Return-Path: Received: from lists.gnu.org (lists.gnu.org. [2001:4830:134:3::11]) by mx.google.com with ESMTPS id b67si4563232qkj.34.2018.11.14.09.29.15 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 14 Nov 2018 09:29:15 -0800 (PST) Received-SPF: pass (google.com: domain of grub-devel-bounces+patch=linaro.org@gnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; spf=pass (google.com: domain of grub-devel-bounces+patch=linaro.org@gnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom="grub-devel-bounces+patch=linaro.org@gnu.org" Received: from localhost ([::1]:33497 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gMyyY-00064t-SG for patch@linaro.org; Wed, 14 Nov 2018 12:29:14 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35230) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gMyxF-00056p-B0 for grub-devel@gnu.org; Wed, 14 Nov 2018 12:27:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gMyxD-0007gh-Ux for grub-devel@gnu.org; Wed, 14 Nov 2018 12:27:53 -0500 Received: from mx2.suse.de ([195.135.220.15]:48658 helo=mx1.suse.de) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gMyxD-0007YN-CZ for grub-devel@gnu.org; Wed, 14 Nov 2018 12:27:51 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 0EB93AFC1; Wed, 14 Nov 2018 17:27:41 +0000 (UTC) From: Alexander Graf To: grub-devel@gnu.org Subject: [PATCH v3 04/10] RISC-V: Add setjmp implementation Date: Wed, 14 Nov 2018 18:27:33 +0100 Message-Id: <20181114172739.51640-5-agraf@suse.de> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20181114172739.51640-1-agraf@suse.de> References: <20181114172739.51640-1-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] X-Received-From: 195.135.220.15 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: The development of GNU GRUB Cc: "rickchen36 @ gmail . com" , David Abdurachmanov , schwab@suse.de, "greentime @ andestech . com" , leif.lindholm@linaro.org, atish.patra@wdc.com, Michael Chang , Alistair Francis , Lukas Auer , Paul Walmsley , Bin Meng MIME-Version: 1.0 Errors-To: grub-devel-bounces+patch=linaro.org@gnu.org Sender: "Grub-devel" This patch adds a 32/64 capable setjmp implementation for RISC-V. Signed-off-by: Alexander Graf Reviewed-by: Alistair Francis --- grub-core/lib/riscv/setjmp.S | 82 +++++++++++++++++++++++++++++++++++++++++++ include/grub/riscv32/setjmp.h | 27 ++++++++++++++ include/grub/riscv64/setjmp.h | 27 ++++++++++++++ 3 files changed, 136 insertions(+) create mode 100644 grub-core/lib/riscv/setjmp.S create mode 100644 include/grub/riscv32/setjmp.h create mode 100644 include/grub/riscv64/setjmp.h -- 2.12.3 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel Reviewed-by: Bin Meng Tested-by: Bin Meng diff --git a/grub-core/lib/riscv/setjmp.S b/grub-core/lib/riscv/setjmp.S new file mode 100644 index 000000000..053e2e6ba --- /dev/null +++ b/grub-core/lib/riscv/setjmp.S @@ -0,0 +1,82 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#include +#include + + .file "setjmp.S" +GRUB_MOD_LICENSE "GPLv3+" + .text + +#if __riscv_xlen == 64 +#define STORE_IDX(reg, idx) sd reg, (idx*8)(a0) +#define LOAD_IDX(reg, idx) ld reg, (idx*8)(a0) +#else +#define STORE_IDX(reg, idx) sw reg, (idx*4)(a0) +#define LOAD_IDX(reg, idx) lw reg, (idx*4)(a0) +#endif + +/* + * int grub_setjmp (grub_jmp_buf env) + */ +FUNCTION(grub_setjmp) + /* Preserve all callee-saved registers and the SP */ + STORE_IDX(s0, 0) + STORE_IDX(s1, 1) + STORE_IDX(s2, 2) + STORE_IDX(s3, 3) + STORE_IDX(s4, 4) + STORE_IDX(s5, 5) + STORE_IDX(s6, 6) + STORE_IDX(s7, 7) + STORE_IDX(s8, 8) + STORE_IDX(s9, 9) + STORE_IDX(s10, 10) + STORE_IDX(s11, 11) + STORE_IDX(ra, 12) + STORE_IDX(sp, 13) + li a0, 0 + ret + +/* + * int grub_longjmp (grub_jmp_buf env, int val) + */ +FUNCTION(grub_longjmp) + LOAD_IDX(s0, 0) + LOAD_IDX(s1, 1) + LOAD_IDX(s2, 2) + LOAD_IDX(s3, 3) + LOAD_IDX(s4, 4) + LOAD_IDX(s5, 5) + LOAD_IDX(s6, 6) + LOAD_IDX(s7, 7) + LOAD_IDX(s8, 8) + LOAD_IDX(s9, 9) + LOAD_IDX(s10, 10) + LOAD_IDX(s11, 11) + LOAD_IDX(ra, 12) + LOAD_IDX(sp, 13) + + /* Move the return value in place, but return 1 if passed 0. */ + beq a1, zero, longjmp_1 + mv a0, a1 + ret + + longjmp_1: + li a0, 1 + ret diff --git a/include/grub/riscv32/setjmp.h b/include/grub/riscv32/setjmp.h new file mode 100644 index 000000000..7a0ed0548 --- /dev/null +++ b/include/grub/riscv32/setjmp.h @@ -0,0 +1,27 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#ifndef GRUB_SETJMP_CPU_HEADER +#define GRUB_SETJMP_CPU_HEADER 1 + +typedef unsigned long long grub_jmp_buf[14]; + +int grub_setjmp (grub_jmp_buf env) RETURNS_TWICE; +void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn)); + +#endif /* ! GRUB_SETJMP_CPU_HEADER */ diff --git a/include/grub/riscv64/setjmp.h b/include/grub/riscv64/setjmp.h new file mode 100644 index 000000000..7a0ed0548 --- /dev/null +++ b/include/grub/riscv64/setjmp.h @@ -0,0 +1,27 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#ifndef GRUB_SETJMP_CPU_HEADER +#define GRUB_SETJMP_CPU_HEADER 1 + +typedef unsigned long long grub_jmp_buf[14]; + +int grub_setjmp (grub_jmp_buf env) RETURNS_TWICE; +void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn)); + +#endif /* ! GRUB_SETJMP_CPU_HEADER */