aa12cea2cc
Although groff_mdoc(7) gives another impression, this is the ordering most widely used and also required by mdocml/mandoc. Reviewed by: ru Approved by: philip, ed (mentors)
134 lines
3.5 KiB
Groff
134 lines
3.5 KiB
Groff
.\" Copyright (c) 2006,2007 Joseph Koshy. All rights reserved.
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" This software is provided by Joseph Koshy ``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 Joseph Koshy 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd October 22, 2007
|
|
.Dt GELF_NEWPHDR 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm elf32_newphdr ,
|
|
.Nm elf64_newphdr ,
|
|
.Nm gelf_newphdr
|
|
.Nd allocate an ELF program header table
|
|
.Sh LIBRARY
|
|
.Lb libelf
|
|
.Sh SYNOPSIS
|
|
.In libelf.h
|
|
.Ft "Elf32_Phdr *"
|
|
.Fn elf32_newphdr "Elf *elf" "size_t count"
|
|
.Ft "Elf64_Phdr *"
|
|
.Fn elf64_newphdr "Elf *elf" "size_t count"
|
|
.In gelf.h
|
|
.Ft "void *"
|
|
.Fn gelf_newphdr "Elf *elf" "size_t count"
|
|
.Sh 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
|
|
.Xr elf 5 .
|
|
.Pp
|
|
Functions
|
|
.Fn elf32_newphdr
|
|
and
|
|
.Fn elf64_newphdr
|
|
allocate a table of
|
|
.Ar count
|
|
.Vt Elf32_Phdr
|
|
and
|
|
.Vt Elf64_Phdr
|
|
descriptors respectively,
|
|
discarding any existing program header table
|
|
already present in the ELF descriptor
|
|
.Ar elf .
|
|
A value of zero for argument
|
|
.Ar count
|
|
may be used to delete an existing program header table
|
|
from an ELF descriptor.
|
|
.Pp
|
|
Function
|
|
.Fn gelf_newphdr
|
|
will return a table of
|
|
.Vt Elf32_Phdr
|
|
or
|
|
.Vt Elf64_Phdr
|
|
with
|
|
.Ar count
|
|
elements depending on the ELF class of ELF descriptor
|
|
.Ar elf .
|
|
.Pp
|
|
The functions set the
|
|
.Dv ELF_F_DIRTY
|
|
flag on the program header table.
|
|
All members of the returned array of Phdr structures
|
|
will be initialized to zero.
|
|
.Pp
|
|
After a successful call to these functions, the pointer returned
|
|
by a prior call to
|
|
.Fn elf32_getphdr
|
|
or
|
|
.Fn elf64_getphdr
|
|
on the same descriptor
|
|
.Ar elf
|
|
will no longer be valid.
|
|
.Sh RETURN VALUES
|
|
The functions a valid pointer if successful, or NULL in case an error
|
|
was encountered.
|
|
.Sh ERRORS
|
|
These functions may fail with the following errors:
|
|
.Bl -tag -width "[ELF_E_RESOURCE]"
|
|
.It Bq Er ELF_E_ARGUMENT
|
|
Argument
|
|
.Ar elf
|
|
was NULL.
|
|
.It Bq Er ELF_E_ARGUMENT
|
|
Argument
|
|
.Ar elf
|
|
was not a descriptor for an ELF object.
|
|
.It Bq Er ELF_E_CLASS
|
|
ELF descriptor
|
|
.Ar elf
|
|
was of an unrecognized class.
|
|
.It Bq Er ELF_E_RESOURCE
|
|
An out of memory condition was detected.
|
|
.It Bq Er ELF_E_SEQUENCE
|
|
An executable header was not allocated for ELF descriptor
|
|
.Ar elf
|
|
before using these APIs.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr elf 3 ,
|
|
.Xr elf32_getphdr 3 ,
|
|
.Xr elf32_newehdr 3 ,
|
|
.Xr elf64_getphdr 3 ,
|
|
.Xr elf64_newehdr 3 ,
|
|
.Xr elf_flagphdr 3 ,
|
|
.Xr elf_getphnum 3 ,
|
|
.Xr gelf 3 ,
|
|
.Xr gelf_getphdr 3 ,
|
|
.Xr gelf_newehdr 3 ,
|
|
.Xr elf 5
|