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Command: dwarf_formblock | Section: 3 | Source: NetBSD | File: dwarf_formblock.3
DWARF_FORMBLOCK(3) FreeBSD Library Functions Manual DWARF_FORMBLOCK(3)
NAME
dwarf_formblock - return the value of a BLOCK attribute
LIBRARY
DWARF Access Library (libdwarf, -ldwarf)
SYNOPSIS
#include <libdwarf.h>
int
dwarf_formblock(Dwarf_Attribute attr, Dwarf_Block **ret,
Dwarf_Error *err);
DESCRIPTION
Function dwarf_formblock() sets the location pointed to by argument ret
to a pointer to a Dwarf_Block structure containing the value of the
attribute referenced by argument attr. The form of argument attr must be
one of DW_FORM_block, DW_FORM_block1, DW_FORM_block2 or DW_FORM_block4.
If argument err is not NULL, it will be used to return an error
descriptor in case of an error.
Memory Management
The memory area referenced by the returned pointer is managed by the
DWARF(3) library. The application should not attempt to free this memory
area. Portable code may indicate that the memory area is to be freed by
using dwarf_dealloc(3).
RETURN VALUES
Function dwarf_formblock() returns DW_DLV_OK on success. In case of an
error, it returns DW_DLV_ERROR and sets argument err.
ERRORS
Function dwarf_formblock() may fail with the following errors:
[DW_DLE_ARGUMENT] Either of arguments attr or ret was NULL.
[DW_DLE_ATTR_FORM_BAD] The attribute referenced by argument attr was
not of a permitted kind.
SEE ALSO
dwarf(3), dwarf_attr(3), dwarf_formflag(3), dwarf_formref(3),
dwarf_formsdata(3), dwarf_formsig8(3), dwarf_formstring(3),
dwarf_formudata(3), dwarf_hasattr(3)
FreeBSD 14.1-RELEASE-p8 July 23, 2010 FreeBSD 14.1-RELEASE-p8