| DWARF_ATTRVAL_SIGNED(3) | Library Functions Manual | DWARF_ATTRVAL_SIGNED(3) | 
dwarf_attrval_flag,
  dwarf_attrval_signed,
  dwarf_attrval_string,
  dwarf_attrval_unsigned —
#include <libdwarf.h>
int
  
  dwarf_attrval_flag(Dwarf_Die
    die, Dwarf_Half attr, Dwarf_Bool
    *ret, Dwarf_Error *err);
int
  
  dwarf_attrval_signed(Dwarf_Die
    die, Dwarf_Half attr,
    Dwarf_Signed *ret, Dwarf_Error
    *err);
int
  
  dwarf_attrval_string(Dwarf_Die
    die, Dwarf_Half attr, const char
    **ret, Dwarf_Error *err);
int
  
  dwarf_attrval_unsigned(Dwarf_Die
    die, Dwarf_Half attr,
    Dwarf_Unsigned *ret, Dwarf_Error
    *err);
Function dwarf_attrval_flag() sets the
    location pointed to by argument ret to either 0 or 1.
    If the form of the attribute named by argument attr is
    DW_FORM_flag, function
    dwarf_attrval_flag() sets the location pointed to by
    argument ret to 1 if the attribute has a non-zero
    value, or to 0 otherwise. If the form of the attribute named by argument
    attr is DW_FORM_flag_present,
    function dwarf_attrval_flag() unconditionally sets
    the location pointed to by argument ret to 1. The form
    of the attribute must be one of DW_FORM_flag or
    DW_FORM_flag_present.
Function dwarf_attrval_signed() stores the
    value for the attribute named by argument attr, into
    the location pointed to by argument ret. The
    attribute's value is treated as a signed integral quantity and is
    sign-extended as needed. The attribute named by the argument
    attr must belong to the
    CONSTANT class and must have one of the following
    forms: DW_FORM_data1,
    DW_FORM_data2,
    DW_FORM_data4, DW_FORM_data8
    or DW_FORM_sdata.
Function dwarf_attrval_string() sets the
    location pointed to by argument ret to a pointer to a
    NUL-terminated string that is the value of the attribute named by argument
    attr. The form of the attribute must be one of
    DW_FORM_string or
    DW_FORM_strp.
Function dwarf_attrval_unsigned() stores
    the value for the attribute named by argument attr
    into the location pointed to by argument ret. The
    attribute's value is treated as an unsigned integral quantity, and is
    zero-extended as needed. The named attribute must belong to one of the
    CONSTANT, ADDRESS or
    REFERENCE classes and must have one of the following
    forms: DW_FORM_addr,
    DW_FORM_data1,
    DW_FORM_data2,
    DW_FORM_data4,
    DW_FORM_data8,
    DW_FORM_udata, DW_FORM_ref1,
    DW_FORM_ref2, DW_FORM_ref4,
    DW_FORM_ref8, or
    DW_FORM_ref_udata.
If the attribute named by argument attr is
    not present in the debugging information entry referenced by argument
    die, and if a
    DW_AT_abstract_origin attribute is present in the
    debugging information entry, function
    dwarf_attrval_unsigned() will search for the named
    attribute in the debugging information entry referenced by the
    DW_AT_abstract_origin attribute.
DW_DLV_OK. If the
  named attribute was not found in the specified debugging information entry
  descriptor these functions return DW_DLV_NO_ENTRY and
  set argument err. For other errors, these functions
  return DW_DLV_ERROR and set argument
  err.
DW_DLE_ARGUMENT]DW_DLE_NO_ENTRY]DW_DLE_ATTR_FORM_BAD]| January 18, 2014 | NetBSD 9.4 |