dwarf_formstring —
return the value of a STRING class
attribute
DWARF Access Library (libdwarf, -ldwarf)
#include
<libdwarf.h>
int
dwarf_formstring(
Dwarf_Attribute
attr,
char **ret,
Dwarf_Error *err);
Function
dwarf_formstring() sets the location
pointed to by argument
ret to a pointer to a
NUL-terminated string containing the value of the attribute referenced by
argument
attr. The form of argument
attr must be one of
DW_FORM_string
or
DW_FORM_strp
.
If argument
err is not NULL, it will be used to
return an error descriptor in case of an error.
The memory area referenced by the returned pointer is managed by the DWARF(3)
library. The application should not attempt to directly free this memory area.
Function
dwarf_formstring() returns
DW_DLV_OK
on success. In case of an error,
it returns
DW_DLV_ERROR
and sets argument
err.
Function
dwarf_formstring() 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.
dwarf(3),
dwarf_attr(3),
dwarf_formblock(3),
dwarf_formref(3),
dwarf_formsdata(3),
dwarf_formsig8(3),
dwarf_formudata(3),
dwarf_hasattr(3)