113 lines
3.9 KiB
C
113 lines
3.9 KiB
C
/****************************************************************************
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* include/nuttx/elf.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_ELF_H
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#define __INCLUDE_NUTTX_ELF_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <elf.h>
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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/****************************************************************************
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* Name: up_checkarch
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*
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* Description:
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* Given the ELF header in 'hdr', verify that the module is appropriate
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* for the current, configured architecture. Every architecture that uses
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* the module loader must provide this function.
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*
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* Input Parameters:
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* hdr - The ELF header read from the module file.
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*
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* Returned Value:
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* True if the architecture supports this module file.
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*
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****************************************************************************/
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#ifdef CONFIG_LIBC_ARCH_ELF
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bool up_checkarch(FAR const Elf_Ehdr *hdr);
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#endif
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/****************************************************************************
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* Name: up_relocate and up_relocateadd
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*
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* Description:
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* Perform on architecture-specific ELF relocation. Every architecture
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* that uses the module loader must provide this function.
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*
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* Input Parameters:
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* rel - The relocation type
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* sym - The ELF symbol structure containing the fully resolved value.
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* There are a few relocation types for a few architectures that do
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* not require symbol information. For those, this value will be
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* NULL. Implementations of these functions must be able to handle
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* that case.
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* addr - The address that requires the relocation.
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*
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* Returned Value:
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* Zero (OK) if the relocation was successful. Otherwise, a negated errno
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* value indicating the cause of the relocation failure.
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*
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****************************************************************************/
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#ifdef CONFIG_LIBC_ARCH_ELF
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int up_relocate(FAR const Elf_Rel *rel, FAR const Elf_Sym *sym,
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uintptr_t addr);
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int up_relocateadd(FAR const Elf_Rela *rel,
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FAR const Elf_Sym *sym, uintptr_t addr);
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#endif
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/****************************************************************************
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* Name: up_init_exidx
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*
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* Description:
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* Initialize the exception index section.
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*
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* Input Parameters:
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* address - The exception index section address.
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* size - The exception index section size.
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*
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* Returned Value:
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* Zero (OK) if the initialization was successful. Otherwise, a negated
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* errno value indicating the cause of the failure.
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*
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****************************************************************************/
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#ifdef CONFIG_CXX_EXCEPTION
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int up_init_exidx(Elf_Addr address, Elf_Word size);
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __INCLUDE_NUTTX_ELF_H */
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