dladdr.3c (2010 09)

dladdr(3C) dladdr(3C)

DIAGNOSTICS

If no symbol is found within the load module containing address whose value is less than or equal to

address , the dli_sname , dli_saddr , and dli_size ﬁelds are set to

0; the dli_bind ﬁeld is set to

STB_LOCAL, and the dli_type ﬁeld is set to

STT_NOTYPE.

For

a.out’s, only a subset of externally visible symbols are typically exported: speciﬁcally those refer-

enced by the load modules with which the

a.out is linked. The exact set of exported symbols for any

shared library or the

a.out can be controlled using the linker (see ld(1)).

ERRORS

dladdr() fails, a subsequent call to

dlerrno() returns one of the following values:

[RTLD_ERR_BAD_DLL] Invalid symbol address in load module.

[RTLD_ERR_CANT_APPLY_RELOC] Cannot apply relocation in library.

[RTLD_ERR_DLADDR_NOTFOUND] Address not found in any load module.

[RTLD_ERR_NO_MEMORY] Out of memory.

[RTLD_ERR_SETCANCELSTATE_FAILED]

__thread_setcancelstate

failed on entry to or

exit from

dladdr().

[RTLD_ERR_SIGENABLE_FAILED]

sigenable failed on exit from dladdr().

[RTLD_ERR_SIGINHIBIT_FAILED]

siginhibit failed on entry to dladdr().