elf64_getphdr man page on FreeBSD

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GELF_GETPHDR(3)		 BSD Library Functions Manual	       GELF_GETPHDR(3)

NAME
     elf32_getphdr, elf64_getphdr, gelf_getphdr — retrieve an ELF program
     header table

LIBRARY
     library “libelf”

SYNOPSIS
     #include <libelf.h>

     Elf32_Phdr *
     elf32_getphdr(Elf *elf);

     Elf64_Phdr *
     elf64_getphdr(Elf *elf);

     #include <gelf.h>

     GElf_Phdr *
     gelf_getphdr(Elf *elf, int index, GElf_Phdr *dst);

DESCRIPTION
     These functions retrieve and translate ELF program header information
     from an ELF descriptor, if this information exists.

     Functions elf32_getphdr() and elf64_getphdr() return a pointer to an
     array of translated Elf32_Phdr and Elf64_Phdr descriptors respectively.
     These descriptors are described in elf(5).	 The number of entries in this
     array may be determined using the elf_getphnum(3) function.

     Function gelf_getphdr() will retrieve the program header table entry at
     index index from ELF descriptor elf. The translated program header table
     entry will be written to the address pointed to be argument dst.

     Applications may inform the library of modifications to a program header
     table entry by using the elf_flagphdr(3) API.  Applications using the
     gelf(3) interface need to use the gelf_update_phdr(3) API to copy modifi‐
     cations to a program header entry back to the underlying ELF descriptor.

RETURN VALUES
     The functions a valid pointer if successful, or NULL in case an error was
     encountered.

ERRORS
     These functions may fail with the following errors:

     [ELF_E_ARGUMENT]  Argument elf was NULL.

     [ELF_E_ARGUMENT]  Argument elf was not a descriptor for an ELF object.

     [ELF_E_ARGUMENT]  Argument dst was NULL.

     [ELF_E_ARGUMENT]  Index index was out of range.

     [ELF_E_CLASS]     The class of ELF descriptor elf did not match the
		       expected class of the function being called.

     [ELF_E_HEADER]    ELF descriptor elf did not possess an executable
		       header.

     [ELF_E_HEADER]    ELF descriptor elf had a corrupt executable header.

     [ELF_E_RESOURCE]  An out of memory condition was detected.

     [ELF_E_SECTION]   The ELF descriptor in argument elf did not adhere to
		       the conventions used for extended numbering.

     [ELF_VERSION]     ELF descriptor elf was of an unsupported version.

SEE ALSO
     elf(3), elf32_getehdr(3), elf32_newphdr(3), elf64_getehdr(3),
     elf64_newphdr(3), elf_flagphdr(3), elf_getphnum(3), gelf(3),
     gelf_getehdr(3), gelf_newphdr(3), gelf_update_phdr(3), elf(5)

BSD			       October 21, 2007				   BSD
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