elf32_getehdr,
elf64_getehdr,
gelf_getehdr —
retrieve the object file header
ELF Access Library (libelf, -lelf)
#include
<libelf.h>
Elf32_Ehdr *
elf32_getehdr(
Elf
*elf);
Elf64_Ehdr *
elf64_getehdr(
Elf
*elf);
#include
<gelf.h>
GElf_Ehdr *
gelf_getehdr(
Elf
*elf,
GElf_Ehdr
*dst);
These functions retrieve the ELF object file header from the ELF descriptor
elf and return a translated header descriptor
to their callers.
Functions
elf32_getehdr() and
elf64_getehdr() return a pointer to the
appropriate class-specific header descriptor if it exists in the file
referenced by descriptor
elf. These functions
return
NULL
if an ELF header was not found
in file
elf.
Function
gelf_getehdr() stores a translated copy of
the header for ELF file
elf into the
descriptor pointed to by argument
dst. It
returns argument
dst if successful or
NULL
in case of failure.
These functions return a pointer to a translated header descriptor if
successful, or NULL on failure.
These functions can fail with the following errors:
-
-
- [
ELF_E_ARGUMENT
]
- The argument elf was
null.
-
-
- [
ELF_E_ARGUMENT
]
- Argument elf was not a
descriptor for an ELF file.
-
-
- [
ELF_E_ARGUMENT
]
- The elf class of descriptor
elf was not recognized.
-
-
- [
ELF_E_ARGUMENT
]
- Argument dst was
null.
-
-
- [
ELF_E_CLASS
]
- The ELF class of descriptor
elf did not match that of the API
function being called.
-
-
- []
- ELF descriptor elf does
not have an associated header.
-
-
- [
ELF_E_RESOURCE
]
- An out of memory condition was detected during
execution.
-
-
- [
ELF_E_SECTION
]
- The ELF descriptor in argument
elf did not adhere to the conventions
used for extended numbering.
-
-
- [
ELF_E_VERSION
]
- The ELF descriptor elf had
an unsupported ELF version number.
elf(3),
elf32_newehdr(3),
elf64_newehdr(3),
elf_flagehdr(3),
elf_getident(3),
gelf(3),
gelf_newehdr(3),
elf(5)