81f1133174
* include: Introduce elf64.h and elf.h
Added elf64.h for 64bit ELF support and moved common definitions
from elf32.h to elf.h. Also introduced Elf_xxx to be used in
common libraries such as binfmt.
* binfmt, include, modlib, module: Add support for ELF64
Elf_xxx must be used instead of Elf32_xxx to support ELF64.
To use ELF64, CONFIG_ELF_64BIT must be enabled.
* binfmt, modlib: Add support for relocate address
* arch: risc-v: Add include/elf.h
* libs: machine: Add risc-v related files.
NOTE: Currently only supports ELF64
* boards: maix-bit: Add elf and posix_spawn configurations
* boards: maix-bit: Add support for module configuration
128 lines
4.7 KiB
C
128 lines
4.7 KiB
C
/****************************************************************************
|
|
* include/nuttx/elf.h
|
|
*
|
|
* Copyright (C) 2019 Pinecone Inc. All rights reserved.
|
|
* Author: Xiang Xiao <xiaoxiang@pinecone.net>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. Neither the name NuttX 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 ANY DIRECT, 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __INCLUDE_NUTTX_ELF_H
|
|
#define __INCLUDE_NUTTX_ELF_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <elf.h>
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: up_checkarch
|
|
*
|
|
* Description:
|
|
* Given the ELF header in 'hdr', verify that the module is appropriate
|
|
* for the current, configured architecture. Every architecture that uses
|
|
* the module loader must provide this function.
|
|
*
|
|
* Input Parameters:
|
|
* hdr - The ELF header read from the module file.
|
|
*
|
|
* Returned Value:
|
|
* True if the architecture supports this module file.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_LIBC_ARCH_ELF
|
|
bool up_checkarch(FAR const Elf_Ehdr *hdr);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: up_relocate and up_relocateadd
|
|
*
|
|
* Description:
|
|
* Perform on architecture-specific ELF relocation. Every architecture
|
|
* that uses the module loader must provide this function.
|
|
*
|
|
* Input Parameters:
|
|
* rel - The relocation type
|
|
* sym - The ELF symbol structure containing the fully resolved value.
|
|
* There are a few relocation types for a few architectures that do
|
|
* not require symbol information. For those, this value will be
|
|
* NULL. Implementations of these functions must be able to handle
|
|
* that case.
|
|
* addr - The address that requires the relocation.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) if the relocation was successful. Otherwise, a negated errno
|
|
* value indicating the cause of the relocation failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_LIBC_ARCH_ELF
|
|
int up_relocate(FAR const Elf_Rel *rel, FAR const Elf_Sym *sym,
|
|
uintptr_t addr);
|
|
int up_relocateadd(FAR const Elf_Rela *rel,
|
|
FAR const Elf_Sym *sym, uintptr_t addr);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: up_init_exidx
|
|
*
|
|
* Description:
|
|
* Initialize the exception index section.
|
|
*
|
|
* Input Parameters:
|
|
* address - The exception index section address.
|
|
* size - The exception index section size.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) if the initialization was successful. Otherwise, a negated errno
|
|
* value indicating the cause of the failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_CXX_EXCEPTION
|
|
int up_init_exidx(Elf_Addr address, Elf_Word size);
|
|
#endif
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCLUDE_NUTTX_ELF_H */
|