177 lines
6.0 KiB
C
177 lines
6.0 KiB
C
/****************************************************************************
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* include/nuttx/elf.h
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*
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* SPDX-License-Identifier: Apache-2.0
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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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#include <arch/elf.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define ELF_PRARGSZ (80) /* Number of chars for args */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifdef CONFIG_COREDUMP
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typedef struct elf_prpsinfo_s
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{
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char pr_state; /* Numeric process state */
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char pr_sname; /* Char for pr_state */
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char pr_zomb; /* Zombie */
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char pr_nice; /* Nice val */
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unsigned long pr_flag; /* Flags */
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unsigned short pr_uid;
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unsigned short pr_gid;
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int pr_pid;
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int pr_ppid;
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int pr_pgrp;
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int pr_sid;
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char pr_fname[16]; /* Filename of executable */
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char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list */
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} elf_prpsinfo_t;
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typedef struct elf_siginfo_s
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{
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int si_signo; /* Signal number */
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int si_code; /* Extra code */
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int si_errno; /* Errno */
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} elf_siginfo_t;
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typedef struct elf_timeval_s
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{
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long tv_sec; /* Seconds */
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long tv_usec; /* Microseconds */
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} elf_timeval_t;
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typedef struct elf_prstatus_s
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{
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elf_siginfo_t pr_info; /* Info associated with signal */
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short pr_cursig; /* Current signal */
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short pr_padding; /* Padding align */
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unsigned long pr_sigpend; /* Set of pending signals */
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unsigned long pr_sighold; /* Set of held signals */
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int pr_pid;
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int pr_ppid;
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int pr_pgrp;
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int pr_sid;
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elf_timeval_t pr_utime; /* User time */
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elf_timeval_t pr_stime; /* System time */
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elf_timeval_t pr_cutime; /* Cumulative user time */
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elf_timeval_t pr_cstime; /* Cumulative system time */
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elf_gregset_t pr_regs;
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int pr_fpvalid; /* True if math co-processor being used */
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} elf_prstatus_t;
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#endif
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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, FAR void *arch_data);
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int up_relocateadd(FAR const Elf_Rela *rel, FAR const Elf_Sym *sym,
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uintptr_t addr, FAR void *arch_data);
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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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