From patchwork Wed Nov 8 05:55:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greentime Hu X-Patchwork-Id: 835654 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="MKEmBRQL"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yWxFN6QSYz9s8J for ; Wed, 8 Nov 2017 17:28:24 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754954AbdKHG0d (ORCPT ); Wed, 8 Nov 2017 01:26:33 -0500 Received: from mail-pl0-f68.google.com ([209.85.160.68]:43353 "EHLO mail-pl0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754072AbdKHGUc (ORCPT ); Wed, 8 Nov 2017 01:20:32 -0500 Received: by mail-pl0-f68.google.com with SMTP id t7so668116plm.0; Tue, 07 Nov 2017 22:20:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=maWFsOnPeEoq5bUK4im4HT0oLK8ZhBeuq17Tn6RsQCo=; b=MKEmBRQL3BKCkn1ccyeKtaWcm3ympxOghW0KmXfqJZePN6WyLNYnZmJ8SjQFC34CkP PsjuS2FEF227QlAXlLbZ1pW1CgTGH8S8YK16T+63TDrPzRAHo9KXXn2FYMBawT7a2y2F gHbN/UWHioNIrhmLXRFKOYHlt+kYpBFEpzZiZYAQAI/nfgDQA0b2lTjpDUd6EP15dX8F MYcn1+J5iAXXOhjQUT/J5iaQVFH9FCysMxatWhXszk3O/UJobr+D9+4HBdb3pwkNRbX2 vtUyAciTsKzJC9bX8d83ueyJ0SS55RWIffo/Au3AwkCwNTliA36J6ezvJbZDVTkrOP20 HrPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=maWFsOnPeEoq5bUK4im4HT0oLK8ZhBeuq17Tn6RsQCo=; b=nUdcm6zNsuHfFwsN20yNCeZU3hDHIN/zzi8jNNNjpJ+tOkel02RFE8MnNkx472THGE EY71ZmnZE+lwZBOhVcm5W2I5tc4ECoA0yYzYkpWrwQrUfJmIos3Tn8cH1Jbd+rvRaVlV N+kwFDTwsgIDISu4wiakaswZesOnQOijcTvUGdvLP5piu5NchfIngMPBFirmNQmKXHBy bF3avnoLgcT25WljipYM5qOZteQOTWYT6Zod8w6IGLZ98Nu/V3Rm5XnLxJ09r5bNGmdo om+pw+u78Ppt42iJNfiuE7Kc3K788xP4UdAaj6LAGI/wNh9CE8TKlRrYMmlg2tnYxvne r0rg== X-Gm-Message-State: AJaThX7BJ910fHkmY2O0pqsal/72PkTyR/TUPpdm2LHRfIAaasi76OQn bo9SnWvF0ndflBjQQBYdoIgAWU3G X-Google-Smtp-Source: ABhQp+Tic6PCnlpvPAgMd8tD3JOqQWGUNDEcfVGM+8YFDc4GPVH1pGw3RbTJl4j6kMr17agyAi4twg== X-Received: by 10.159.229.15 with SMTP id s15mr1223546plq.69.1510122032003; Tue, 07 Nov 2017 22:20:32 -0800 (PST) Received: from app09.andestech.com ([118.163.51.199]) by smtp.gmail.com with ESMTPSA id a4sm6581339pfj.72.2017.11.07.22.20.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 07 Nov 2017 22:20:31 -0800 (PST) From: Greentime Hu To: greentime@andestech.com, linux-kernel@vger.kernel.org, arnd@arndb.de, linux-arch@vger.kernel.org, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, robh+dt@kernel.org, netdev@vger.kernel.org Cc: green.hu@gmail.com, Vincent Chen Subject: [PATCH 14/31] nds32: ELF definitions Date: Wed, 8 Nov 2017 13:55:02 +0800 Message-Id: <2889e83774846be0e914bc16e0d6807c13903eb2.1510118606.git.green.hu@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Greentime Hu Signed-off-by: Vincent Chen Signed-off-by: Greentime Hu --- arch/nds32/include/asm/elf.h | 192 ++++++++++++++++++++++++++++++++++ arch/nds32/include/uapi/asm/auxvec.h | 25 +++++ arch/nds32/include/uapi/asm/param.h | 24 +++++ 3 files changed, 241 insertions(+) create mode 100644 arch/nds32/include/asm/elf.h create mode 100644 arch/nds32/include/uapi/asm/auxvec.h create mode 100644 arch/nds32/include/uapi/asm/param.h diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h new file mode 100644 index 0000000..a6e4c56 --- /dev/null +++ b/arch/nds32/include/asm/elf.h @@ -0,0 +1,192 @@ +/* + * Copyright (C) 2005-2017 Andes Technology Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 this program. If not, see . + */ + +#ifndef __ASMNDS32_ELF_H +#define __ASMNDS32_ELF_H + +/* + * ELF register definitions.. + */ + +#include + +typedef unsigned long elf_greg_t; +typedef unsigned long elf_freg_t[3]; + +extern unsigned int elf_hwcap; + +#define EM_NDS32 167 + +#define R_NDS32_NONE 0 +#define R_NDS32_16_RELA 19 +#define R_NDS32_32_RELA 20 +#define R_NDS32_9_PCREL_RELA 22 +#define R_NDS32_15_PCREL_RELA 23 +#define R_NDS32_17_PCREL_RELA 24 +#define R_NDS32_25_PCREL_RELA 25 +#define R_NDS32_HI20_RELA 26 +#define R_NDS32_LO12S3_RELA 27 +#define R_NDS32_LO12S2_RELA 28 +#define R_NDS32_LO12S1_RELA 29 +#define R_NDS32_LO12S0_RELA 30 +#define R_NDS32_SDA15S3_RELA 31 +#define R_NDS32_SDA15S2_RELA 32 +#define R_NDS32_SDA15S1_RELA 33 +#define R_NDS32_SDA15S0_RELA 34 +#define R_NDS32_GOT20 37 +#define R_NDS32_25_PLTREL 38 +#define R_NDS32_COPY 39 +#define R_NDS32_GLOB_DAT 40 +#define R_NDS32_JMP_SLOT 41 +#define R_NDS32_RELATIVE 42 +#define R_NDS32_GOTOFF 43 +#define R_NDS32_GOTPC20 44 +#define R_NDS32_GOT_HI20 45 +#define R_NDS32_GOT_LO12 46 +#define R_NDS32_GOTPC_HI20 47 +#define R_NDS32_GOTPC_LO12 48 +#define R_NDS32_GOTOFF_HI20 49 +#define R_NDS32_GOTOFF_LO12 50 +#define R_NDS32_INSN16 51 +#define R_NDS32_LABEL 52 +#define R_NDS32_LONGCALL1 53 +#define R_NDS32_LONGCALL2 54 +#define R_NDS32_LONGCALL3 55 +#define R_NDS32_LONGJUMP1 56 +#define R_NDS32_LONGJUMP2 57 +#define R_NDS32_LONGJUMP3 58 +#define R_NDS32_LOADSTORE 59 +#define R_NDS32_9_FIXED_RELA 60 +#define R_NDS32_15_FIXED_RELA 61 +#define R_NDS32_17_FIXED_RELA 62 +#define R_NDS32_25_FIXED_RELA 63 +#define R_NDS32_PLTREL_HI20 64 +#define R_NDS32_PLTREL_LO12 65 +#define R_NDS32_PLT_GOTREL_HI20 66 +#define R_NDS32_PLT_GOTREL_LO12 67 +#define R_NDS32_LO12S0_ORI_RELA 72 +#define R_NDS32_DWARF2_OP1_RELA 77 +#define R_NDS32_DWARF2_OP2_RELA 78 +#define R_NDS32_DWARF2_LEB_RELA 79 +#define R_NDS32_WORD_9_PCREL_RELA 94 +#define R_NDS32_LONGCALL4 107 +#define R_NDS32_RELA_NOP_MIX 192 +#define R_NDS32_RELA_NOP_MAX 255 + +#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Core file format: The core file is written in such a way that gdb + can understand it and provide useful information to the user (under + linux we use the 'trad-core' bfd). There are quite a number of + obstacles to being able to view the contents of the floating point + registers, and until these are solved you will not be able to view the + contents of them. Actually, you can read in the core file and look at + the contents of the user struct to find out what the floating point + registers contain. + The actual file contents are as follows: + UPAGE: 1 page consisting of a user struct that tells gdb what is present + in the file. Directly after this is a copy of the task_struct, which + is currently not used by gdb, but it may come in useful at some point. + All of the registers are stored as part of the upage. The upage should + always be only one page. + DATA: The data area is stored. We use current->end_text to + current->brk to pick up all of the user variables, plus any memory + that may have been malloced. No attempt is made to determine if a page + is demand-zero or if a page is totally unused, we just cover the entire + range. All of the addresses are rounded in such a way that an integral + number of pages is written. + STACK: We need the stack information in order to get a meaningful + backtrace. We need to write the data from (esp) to + current->start_stack, so we round each of these off in order to be able + to write an integer number of pages. + The minimum core file size is 3 pages, or 12288 bytes. +*/ + +struct user_fp { + struct fp_reg { + unsigned int sign1:1; + unsigned int unused:15; + unsigned int sign2:1; + unsigned int exponent:14; + unsigned int j:1; + unsigned int mantissa1:31; + unsigned int mantissa0:32; + } fpregs[8]; + unsigned int fpsr:32; + unsigned int fpcr:32; + unsigned char ftype[8]; + unsigned int init_flag; +}; + +typedef struct user_fp elf_fpregset_t; + +struct elf32_hdr; +#define elf_check_arch(x) ((x)->e_machine == EM_NDS32) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#ifdef __NDS32_EB__ +#define ELF_DATA ELFDATA2MSB; +#else +#define ELF_DATA ELFDATA2LSB; +#endif +#define ELF_ARCH EM_NDS32 +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE PAGE_SIZE + +/* This is the location that an ET_DYN program is loaded if exec'ed. Typical + use of this is to invoke "./ld.so someprog" to test out a new version of + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) + +/* When the program starts, a1 contains a pointer to a function to be + registered with atexit, as per the SVR4 ABI. A value of 0 means we + have no such handler. */ +#define ELF_PLAT_INIT(_r, load_addr) (_r)->uregs[0] = 0 + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. */ + +#define ELF_HWCAP (elf_hwcap) + +#ifdef __KERNEL__ + +#define ELF_PLATFORM (NULL) + +/* Old NetWinder binaries were compiled in such a way that the iBCS + heuristic always trips on them. Until these binaries become uncommon + enough not to care, don't trust the `ibcs' flag here. In any case + there is no other ELF system currently supported by iBCS. + @@ Could print a warning message to encourage users to upgrade. */ +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) + +#endif + +#define ARCH_DLINFO \ +do { \ + NEW_AUX_ENT(AT_SYSINFO_EHDR, \ + (elf_addr_t)current->mm->context.vdso); \ +} while (0) +#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 +struct linux_binprm; +int arch_setup_additional_pages(struct linux_binprm *, int); + +#endif diff --git a/arch/nds32/include/uapi/asm/auxvec.h b/arch/nds32/include/uapi/asm/auxvec.h new file mode 100644 index 0000000..02e9757 --- /dev/null +++ b/arch/nds32/include/uapi/asm/auxvec.h @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2005-2017 Andes Technology Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 this program. If not, see . + */ + +#ifndef __ASM_AUXVEC_H +#define __ASM_AUXVEC_H + +/* VDSO location */ +#define AT_SYSINFO_EHDR 33 + +#define AT_VECTOR_SIZE_ARCH 1 + +#endif diff --git a/arch/nds32/include/uapi/asm/param.h b/arch/nds32/include/uapi/asm/param.h new file mode 100644 index 0000000..2e4527f3 --- /dev/null +++ b/arch/nds32/include/uapi/asm/param.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2005-2017 Andes Technology Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 this program. If not, see . + */ + +#ifndef __ASM_NDS32_PARAM_H +#define __ASM_NDS32_PARAM_H + +#define EXEC_PAGESIZE 8192 + +#include + +#endif /* __ASM_NDS32_PARAM_H */