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Man Pages


Manual Reference Pages  -  ELF64_NEWPHDR (3)

NAME

elf32_newphdr, elf64_newphdr, gelf_newphdr - allocate an ELF program header table

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also

LIBRARY


.Lb libelf

SYNOPSIS


.In libelf.h Elf32_Phdr * elf32_newphdr Elf *elf size_t count Elf64_Phdr * elf64_newphdr Elf *elf size_t count
.In gelf.h void * gelf_newphdr Elf *elf size_t count

DESCRIPTION

These functions allocate an ELF Program Header table for an ELF descriptor.
.Vt Elf32_Phdr and
.Vt Elf64_Phdr descriptors are described further in elf(5).

Functions elf32_newphdr and elf64_newphdr allocate a table of count
.Vt Elf32_Phdr and
.Vt Elf64_Phdr descriptors respectively, discarding any existing program header table already present in the ELF descriptor elf. A value of zero for argument count may be used to delete an existing program header table from an ELF descriptor.

Function gelf_newphdr will return a table of
.Vt Elf32_Phdr or
.Vt Elf64_Phdr with count elements depending on the ELF class of ELF descriptor elf.

The functions set the ELF_F_DIRTY flag on the program header table. All members of the returned array of Phdr structures will be initialized to zero.

After a successful call to these functions, the pointer returned by a prior call to elf32_getphdr or elf64_getphdr on the same descriptor elf will no longer be valid.

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_CLASS] ELF descriptor elf was of an unrecognized class.
[ELF_E_RESOURCE] An out of memory condition was detected.
[ELF_E_SEQUENCE] An executable header was not allocated for ELF descriptor elf before using these APIs.

SEE ALSO

elf(3), elf32_getphdr(3), elf32_newehdr(3), elf64_getphdr(3), elf64_newehdr(3), elf_flagphdr(3), elf_getphnum(3), gelf(3), gelf_getphdr(3), gelf_newehdr(3), elf(5)
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