From patchwork Mon Apr 23 05:59:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 133954 Delivered-To: patch@linaro.org Received: by 10.46.151.6 with SMTP id r6csp616997lji; Sun, 22 Apr 2018 23:03:00 -0700 (PDT) X-Google-Smtp-Source: AIpwx4+1XkfNjLwmCQlqff/G++MO39jqd0/maRyrc48x7AHRgphTXp5wlDwyAFFTxn1txPZkP0nR X-Received: by 10.80.208.156 with SMTP id v28mr21401438edd.137.1524463380464; Sun, 22 Apr 2018 23:03:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1524463380; cv=none; d=google.com; s=arc-20160816; b=F/MDP4lCDVidHV+NUxJVFaOTFZKdxQv88QLvXvu05257hzuUOL2H6yjGU7vQIeQbWy qItzhruL6ib+dQfL+IH9WMe+gogDeskNeSb7fJqfBfds/fr2GVTNygrkHDVcMUCG+qSA bHwmFXxvrJRAfCk/mg4vTiWjmj+H5BG5jHSqKPBR+AJxKTjUpCuNVi6vKpBdxJCfqVeI 9NuWt+xdfUv4pgEBBTCNtv8M0mo+/5KwJ4Awj6bzdxO7Odnx0A7h2LD3aLohp+DwsPhd juYA2bKmmolg9GAojcNKZcSsK4Wa5IWQct5hkB/nCZvV2TGXX7mssvlkKp+KMyPq+RSV 3w1A== 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 :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:subject:cc:references:in-reply-to:message-id :date:to:from:arc-authentication-results; bh=F6RK0d5+jKb9NQy2HbmWWlQk/kGlRwj4sRP5s4QYB9M=; b=09zo6sht3vsH1cGymHwvQapRFq2Fy0D0mlxW63vea0HirNN1RoJ+fnissXfn2lxuu6 Zxn+9LM9rIUDVXBnDhy0bd4J2XgVxnLqTWcdo4tk99Dj7Yw8LhZSN/zic0v0uX+yw5vf 1zCth/j8erBgR+oinIEmMWByGi0S42ZMxuH//fgLw5smC/sv+74OHcT8MyY9GWvM25Aj EfBDEFij4YyEDMba01UXVZDFLqqCjHSYA0hB3R2tQ8zv5byzq7w8u4Z0Nu1oaE/nXbA1 jGWdr5tEyZnn8vmffXm+Co48qOwmzIuZtPrdSywQRWEdjUnRY036vzio87q7wSQPd5p7 l0Hw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de Return-Path: Received: from lists.denx.de (dione.denx.de. [81.169.180.215]) by mx.google.com with ESMTP id m44si2501915edd.71.2018.04.22.23.03.00; Sun, 22 Apr 2018 23:03:00 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) client-ip=81.169.180.215; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by lists.denx.de (Postfix, from userid 105) id 0A3F5C21CB6; Mon, 23 Apr 2018 06:01:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RCVD_IN_DNSWL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id CAD85C21E1D; Mon, 23 Apr 2018 06:00:05 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 5FAB9C21C6A; Mon, 23 Apr 2018 05:59:52 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by lists.denx.de (Postfix) with ESMTPS id BCAC0C21DB5 for ; Mon, 23 Apr 2018 05:59:51 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 61228AE17; Mon, 23 Apr 2018 05:59:51 +0000 (UTC) From: Alexander Graf To: u-boot@lists.denx.de Date: Mon, 23 Apr 2018 07:59:45 +0200 Message-Id: <20180423055950.78818-4-agraf@suse.de> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20180423055950.78818-1-agraf@suse.de> References: <20180423055950.78818-1-agraf@suse.de> Cc: Heinrich Schuchardt , schwab@suse.de, Greentime Hu Subject: [U-Boot] [PATCH v3 3/8] riscv: Add EFI application infrastructure X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" The hello world binary and a few selftests require to build EFI target binaries, not just the EFI host environment. This patch adds all required files to generate an EFI binary for RISC-V. Signed-off-by: Alexander Graf --- new in v2 v2 -> v3: - Add missing crt0 source --- arch/riscv/config.mk | 5 ++ arch/riscv/lib/Makefile | 11 +++ arch/riscv/lib/crt0_riscv_efi.S | 152 +++++++++++++++++++++++++++++++++++++ arch/riscv/lib/elf_riscv32_efi.lds | 70 +++++++++++++++++ arch/riscv/lib/elf_riscv64_efi.lds | 70 +++++++++++++++++ arch/riscv/lib/reloc_riscv_efi.c | 97 +++++++++++++++++++++++ 6 files changed, 405 insertions(+) create mode 100644 arch/riscv/lib/crt0_riscv_efi.S create mode 100644 arch/riscv/lib/elf_riscv32_efi.lds create mode 100644 arch/riscv/lib/elf_riscv64_efi.lds create mode 100644 arch/riscv/lib/reloc_riscv_efi.c diff --git a/arch/riscv/config.mk b/arch/riscv/config.mk index 69f4cf6ce8..9175aa765d 100644 --- a/arch/riscv/config.mk +++ b/arch/riscv/config.mk @@ -19,10 +19,12 @@ endif ifdef CONFIG_32BIT PLATFORM_LDFLAGS += -m $(32bit-emul) +EFI_LDS := elf_riscv32_efi.lds endif ifdef CONFIG_64BIT PLATFORM_LDFLAGS += -m $(64bit-emul) +EFI_LDS := elf_riscv64_efi.lds endif CONFIG_STANDALONE_LOAD_ADDR = 0x00000000 \ @@ -31,3 +33,6 @@ CONFIG_STANDALONE_LOAD_ADDR = 0x00000000 \ PLATFORM_CPPFLAGS += -ffixed-gp -fpic PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -gdwarf-2 -ffunction-sections LDFLAGS_u-boot += --gc-sections -static -pie + +EFI_CRT0 := crt0_riscv_efi.o +EFI_RELOC := reloc_riscv_efi.o diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile index 6d97aa2719..33f80ebdca 100644 --- a/arch/riscv/lib/Makefile +++ b/arch/riscv/lib/Makefile @@ -13,3 +13,14 @@ obj-$(CONFIG_CMD_GO) += boot.o obj-y += cache.o obj-y += interrupts.o obj-y += setjmp.o + +# For building EFI apps +CFLAGS_$(EFI_CRT0) := $(CFLAGS_EFI) +CFLAGS_REMOVE_$(EFI_CRT0) := $(CFLAGS_NON_EFI) + +CFLAGS_$(EFI_RELOC) := $(CFLAGS_EFI) +CFLAGS_REMOVE_$(EFI_RELOC) := $(CFLAGS_NON_EFI) + +extra-$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE) += $(EFI_CRT0) $(EFI_RELOC) +extra-$(CONFIG_CMD_BOOTEFI_SELFTEST) += $(EFI_CRT0) $(EFI_RELOC) +extra-$(CONFIG_EFI) += $(EFI_CRT0) $(EFI_RELOC) diff --git a/arch/riscv/lib/crt0_riscv_efi.S b/arch/riscv/lib/crt0_riscv_efi.S new file mode 100644 index 0000000000..498870e1be --- /dev/null +++ b/arch/riscv/lib/crt0_riscv_efi.S @@ -0,0 +1,152 @@ +/* + * crt0-efi-riscv.S - PE/COFF header for RISC-V EFI applications + * + * Copright (C) 2014 Linaro Ltd. + * Copright (C) 2018 Alexander Graf + * + * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause + * + * This file is inspired by arch/arm/lib/crt0_aarch64_efi.S + */ + +#include + +#if __riscv_xlen == 64 +#define SIZE_LONG 8 +#define SAVE_LONG(reg, idx) sd reg, (idx*SIZE_LONG)(sp) +#define LOAD_LONG(reg, idx) ld reg, (idx*SIZE_LONG)(sp) +#define PE_MACHINE 0x5064 +#else +#define SIZE_LONG 4 +#define SAVE_LONG(reg, idx) sw reg, (idx*SIZE_LONG)(sp) +#define LOAD_LONG(reg, idx) lw reg, (idx*SIZE_LONG)(sp) +#define PE_MACHINE 0x5032 +#endif + + + .section .text.head + + /* + * Magic "MZ" signature for PE/COFF + */ + .globl ImageBase +ImageBase: + .ascii "MZ" + .skip 58 /* 'MZ' + pad + offset == 64 */ + .long pe_header - ImageBase /* Offset to the PE header */ +pe_header: + .ascii "PE" + .short 0 +coff_header: + .short PE_MACHINE /* RISC-V 64/32-bit */ + .short 2 /* nr_sections */ + .long 0 /* TimeDateStamp */ + .long 0 /* PointerToSymbolTable */ + .long 1 /* NumberOfSymbols */ + .short section_table - optional_header /* SizeOfOptionalHeader */ + /* + * Characteristics: IMAGE_FILE_DEBUG_STRIPPED | + * IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_LINE_NUMS_STRIPPED + */ + .short 0x206 +optional_header: + .short 0x20b /* PE32+ format */ + .byte 0x02 /* MajorLinkerVersion */ + .byte 0x14 /* MinorLinkerVersion */ + .long _edata - _start /* SizeOfCode */ + .long 0 /* SizeOfInitializedData */ + .long 0 /* SizeOfUninitializedData */ + .long _start - ImageBase /* AddressOfEntryPoint */ + .long _start - ImageBase /* BaseOfCode */ + +extra_header_fields: + .quad 0 /* ImageBase */ + .long 0x20 /* SectionAlignment */ + .long 0x8 /* FileAlignment */ + .short 0 /* MajorOperatingSystemVersion */ + .short 0 /* MinorOperatingSystemVersion */ + .short 0 /* MajorImageVersion */ + .short 0 /* MinorImageVersion */ + .short 0 /* MajorSubsystemVersion */ + .short 0 /* MinorSubsystemVersion */ + .long 0 /* Win32VersionValue */ + + .long _edata - ImageBase /* SizeOfImage */ + + /* + * Everything before the kernel image is considered part of the header + */ + .long _start - ImageBase /* SizeOfHeaders */ + .long 0 /* CheckSum */ + .short IMAGE_SUBSYSTEM_EFI_APPLICATION /* Subsystem */ + .short 0 /* DllCharacteristics */ + .quad 0 /* SizeOfStackReserve */ + .quad 0 /* SizeOfStackCommit */ + .quad 0 /* SizeOfHeapReserve */ + .quad 0 /* SizeOfHeapCommit */ + .long 0 /* LoaderFlags */ + .long 0x6 /* NumberOfRvaAndSizes */ + + .quad 0 /* ExportTable */ + .quad 0 /* ImportTable */ + .quad 0 /* ResourceTable */ + .quad 0 /* ExceptionTable */ + .quad 0 /* CertificationTable */ + .quad 0 /* BaseRelocationTable */ + + /* Section table */ +section_table: + + /* + * The EFI application loader requires a relocation section + * because EFI applications must be relocatable. This is a + * dummy section as far as we are concerned. + */ + .ascii ".reloc" + .byte 0 + .byte 0 /* end of 0 padding of section name */ + .long 0 + .long 0 + .long 0 /* SizeOfRawData */ + .long 0 /* PointerToRawData */ + .long 0 /* PointerToRelocations */ + .long 0 /* PointerToLineNumbers */ + .short 0 /* NumberOfRelocations */ + .short 0 /* NumberOfLineNumbers */ + .long 0x42100040 /* Characteristics (section flags) */ + + + .ascii ".text" + .byte 0 + .byte 0 + .byte 0 /* end of 0 padding of section name */ + .long _edata - _start /* VirtualSize */ + .long _start - ImageBase /* VirtualAddress */ + .long _edata - _start /* SizeOfRawData */ + .long _start - ImageBase /* PointerToRawData */ + + .long 0 /* PointerToRelocations (0 for executables) */ + .long 0 /* PointerToLineNumbers (0 for executables) */ + .short 0 /* NumberOfRelocations (0 for executables) */ + .short 0 /* NumberOfLineNumbers (0 for executables) */ + .long 0xe0500020 /* Characteristics (section flags) */ + +_start: + addi sp, sp, -(SIZE_LONG * 3) + SAVE_LONG(a0, 0) + SAVE_LONG(a1, 1) + SAVE_LONG(ra, 2) + + lla a0, ImageBase + lla a1, _DYNAMIC + call _relocate + bne a0, zero, 0f + + LOAD_LONG(a1, 1) + LOAD_LONG(a0, 0) + call efi_main + + LOAD_LONG(ra, 2) + +0: addi sp, sp, (SIZE_LONG * 3) + ret diff --git a/arch/riscv/lib/elf_riscv32_efi.lds b/arch/riscv/lib/elf_riscv32_efi.lds new file mode 100644 index 0000000000..96d11985b0 --- /dev/null +++ b/arch/riscv/lib/elf_riscv32_efi.lds @@ -0,0 +1,70 @@ +/* + * U-Boot riscv32 EFI linker script + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Modified from arch/arm/lib/elf_aarch64_efi.lds + */ + +OUTPUT_FORMAT("elf32-littleriscv", "elf32-littleriscv", "elf32-littleriscv") +OUTPUT_ARCH(riscv) +ENTRY(_start) +SECTIONS +{ + .text 0x0 : { + _text = .; + *(.text.head) + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + *(.srodata) + *(.rodata*) + . = ALIGN(16); + } + _etext = .; + _text_size = . - _text; + .dynamic : { *(.dynamic) } + .data : { + _data = .; + *(.sdata) + *(.data) + *(.data1) + *(.data.*) + *(.got.plt) + *(.got) + + /* + * The EFI loader doesn't seem to like a .bss section, so we + * stick it all into .data: + */ + . = ALIGN(16); + _bss = .; + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(.bss.*) + *(COMMON) + . = ALIGN(16); + _bss_end = .; + _edata = .; + } + .rela.dyn : { *(.rela.dyn) } + .rela.plt : { *(.rela.plt) } + .rela.got : { *(.rela.got) } + .rela.data : { *(.rela.data) *(.rela.data*) } + _data_size = . - _etext; + + . = ALIGN(4096); + .dynsym : { *(.dynsym) } + . = ALIGN(4096); + .dynstr : { *(.dynstr) } + . = ALIGN(4096); + .note.gnu.build-id : { *(.note.gnu.build-id) } + /DISCARD/ : { + *(.rel.reloc) + *(.eh_frame) + *(.note.GNU-stack) + } + .comment 0 : { *(.comment) } +} diff --git a/arch/riscv/lib/elf_riscv64_efi.lds b/arch/riscv/lib/elf_riscv64_efi.lds new file mode 100644 index 0000000000..25c863de8a --- /dev/null +++ b/arch/riscv/lib/elf_riscv64_efi.lds @@ -0,0 +1,70 @@ +/* + * U-Boot riscv64 EFI linker script + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Modified from arch/arm/lib/elf_aarch64_efi.lds + */ + +OUTPUT_FORMAT("elf64-littleriscv", "elf64-littleriscv", "elf64-littleriscv") +OUTPUT_ARCH(riscv) +ENTRY(_start) +SECTIONS +{ + .text 0x0 : { + _text = .; + *(.text.head) + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + *(.srodata) + *(.rodata*) + . = ALIGN(16); + } + _etext = .; + _text_size = . - _text; + .dynamic : { *(.dynamic) } + .data : { + _data = .; + *(.sdata) + *(.data) + *(.data1) + *(.data.*) + *(.got.plt) + *(.got) + + /* + * The EFI loader doesn't seem to like a .bss section, so we + * stick it all into .data: + */ + . = ALIGN(16); + _bss = .; + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(.bss.*) + *(COMMON) + . = ALIGN(16); + _bss_end = .; + _edata = .; + } + .rela.dyn : { *(.rela.dyn) } + .rela.plt : { *(.rela.plt) } + .rela.got : { *(.rela.got) } + .rela.data : { *(.rela.data) *(.rela.data*) } + _data_size = . - _etext; + + . = ALIGN(4096); + .dynsym : { *(.dynsym) } + . = ALIGN(4096); + .dynstr : { *(.dynstr) } + . = ALIGN(4096); + .note.gnu.build-id : { *(.note.gnu.build-id) } + /DISCARD/ : { + *(.rel.reloc) + *(.eh_frame) + *(.note.GNU-stack) + } + .comment 0 : { *(.comment) } +} diff --git a/arch/riscv/lib/reloc_riscv_efi.c b/arch/riscv/lib/reloc_riscv_efi.c new file mode 100644 index 0000000000..d80ffc975c --- /dev/null +++ b/arch/riscv/lib/reloc_riscv_efi.c @@ -0,0 +1,97 @@ +/* reloc_riscv.c - position independent ELF shared object relocator + Copyright (C) 2018 Alexander Graf + Copyright (C) 2014 Linaro Ltd. + Copyright (C) 1999 Hewlett-Packard Co. + Contributed by David Mosberger . + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + * Neither the name of Hewlett-Packard Co. nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. +*/ + +#include + +#include + +#if __riscv_xlen == 64 +#define Elf_Dyn Elf64_Dyn +#define Elf_Rela Elf64_Rela +#define ELF_R_TYPE ELF64_R_TYPE +#else +#define Elf_Dyn Elf32_Dyn +#define Elf_Rela Elf32_Rela +#define ELF_R_TYPE ELF32_R_TYPE +#endif + +efi_status_t _relocate(long ldbase, Elf_Dyn *dyn, efi_handle_t image, + struct efi_system_table *systab) +{ + long relsz = 0, relent = 0; + Elf_Rela *rel = 0; + unsigned long *addr; + int i; + + for (i = 0; dyn[i].d_tag != DT_NULL; ++i) { + switch (dyn[i].d_tag) { + case DT_RELA: + rel = (Elf_Rela *)((ulong)dyn[i].d_un.d_ptr + ldbase); + break; + case DT_RELASZ: + relsz = dyn[i].d_un.d_val; + break; + case DT_RELAENT: + relent = dyn[i].d_un.d_val; + break; + default: + break; + } + } + + if (!rel && relent == 0) + return EFI_SUCCESS; + + if (!rel || relent == 0) + return EFI_LOAD_ERROR; + + while (relsz > 0) { + /* apply the relocs */ + switch (ELF_R_TYPE(rel->r_info)) { + case R_RISCV_RELATIVE: + addr = (ulong *)(ldbase + rel->r_offset); + *addr = ldbase + rel->r_addend; + break; + default: + /* Panic */ + while (1) ; + } + rel = (Elf_Rela *)((char *)rel + relent); + relsz -= relent; + } + return EFI_SUCCESS; +}