xref: /freebsd/contrib/elftoolchain/libelf/gelf_fsize.3 (revision 2e3f49888ec8851bafb22011533217487764fdb0)
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24.\" $Id: gelf_fsize.3 3639 2018-10-14 14:07:02Z jkoshy $
25.\"
26.Dd February 5, 2008
27.Dt GELF_FSIZE 3
28.Os
29.Sh NAME
30.Nm gelf_fsize ,
31.Nm elf32_fsize ,
32.Nm elf64_fsize
33.Nd return the size of a file type
34.Sh LIBRARY
35.Lb libelf
36.Sh SYNOPSIS
37.In libelf.h
38.Ft size_t
39.Fn elf32_fsize "Elf_Type type" "size_t count" "unsigned int version"
40.Ft size_t
41.Fn elf64_fsize "Elf_Type type" "size_t count" "unsigned int version"
42.In gelf.h
43.Ft size_t
44.Fn gelf_fsize "Elf *elf" "Elf_Type type" "size_t count" "unsigned int version"
45.Sh DESCRIPTION
46These functions return the size in bytes of the file representation of
47.Ar count
48numbers of objects of ELF type
49.Ar type .
50For ELF types that are of variable length, these functions return a
51size of one byte.
52.Pp
53Functions
54.Fn elf32_fsize
55and
56.Fn elf64_fsize
57return sizes for files of class
58.Dv ELFCLASS32
59and
60.Dv ELFCLASS64
61respectively.
62Function
63.Fn gelf_fsize
64returns the size for the class of ELF descriptor
65.Ar elf .
66.Sh RETURN VALUES
67These functions return a non-zero value in case of success, or zero in
68case of an error.
69.Sh ERRORS
70These functions may fail with:
71.Bl -tag -width "[ELF_E_RESOURCE]"
72.It Bq Er ELF_E_ARGUMENT
73Argument
74.Ar elf
75was NULL in a call to
76.Fn gelf_fsize .
77.It Bq Er ELF_E_ARGUMENT
78ELF descriptor
79.Ar elf
80had an unknown ELF class.
81.It Bq Er ELF_E_ARGUMENT
82Argument
83.Ar type
84contained an illegal value.
85.It Bq Er ELF_E_UNIMPL
86Support for ELF type
87.Ar type
88has not been implemented.
89.It Bq Er ELF_E_VERSION
90Argument
91.Ar version
92is not a supported version.
93.El
94.Sh SEE ALSO
95.Xr elf 3 ,
96.Xr gelf 3
97