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.

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)