dwarf_get_arange_cu_header_offset(3) [freebsd man page]

DWARF_GET_CU_DIE_OFFSET(3)				   BSD Library Functions Manual 				DWARF_GET_CU_DIE_OFFSET(3)

NAME

     dwarf_get_arange_cu_header_offset, dwarf_get_cu_die_offset -- retrieve compilation unit offsets

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     int
     dwarf_get_arange_cu_header_offset(Dwarf_Arange ar, Dwarf_Off *ret, Dwarf_Error *err);

     int
     dwarf_get_cu_die_offset(Dwarf_Arange ar, Dwarf_Off *ret, Dwarf_Error *err);

DESCRIPTION

     These functions retrieve the offsets, relative to the ``.debug_info'' DWARF section, of the debugging information entries describing the com-
     pilation unit associated with a Dwarf_Arange descriptor.

     Function dwarf_get_arange_cu_header_offset() retrieves the offset of the compilation unit header associated with argument ar, and stores it
     in the location pointed to by argument ret.

     Function dwarf_get_cu_die_offset() retrieves the offset of the debugging information entry for the compilation unit associated with argument
     ar, and stores it in the location pointed to by argument ret.

     If argument err is not NULL, these functions will use it to store error information, in case of an error.

RETURN VALUES

     On success, these functions returns DW_DLV_OK.  In case of an error, they return DW_DLV_ERROR and set the argument err.

ERRORS

     These functions may fail with:

     [DW_DLE_ARGUMENT]	Argument ar was not a valid Dwarf_Arange descriptor.

     [DW_DLE_ARGUMENT]	Argument ret was NULL.

SEE ALSO

     dwarf(3), dwarf_get_arange(3), dwarf_get_arange_info(3), dwarf_get_aranges(3)

BSD
								  April 10, 2011							       BSD

DWARF_DIEOFFSET(3)					   BSD Library Functions Manual 					DWARF_DIEOFFSET(3)

NAME

     dwarf_die_CU_offset, dwarf_die_CU_offset_range, dwarf_dieoffset, dwarf_get_cu_die_offset_given_cu_header_offset,
     dwarf_get_cu_die_offset_given_cu_header_offset_b -- return offsets of DWARF debugging information entries

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     int
     dwarf_die_CU_offset(Dwarf_Die die, Dwarf_Off *ret_offset, Dwarf_Error *err);

     int
     dwarf_die_CU_offset_range(Dwarf_Die die, Dwarf_Off *cu_offset, Dwarf_Off *cu_length, Dwarf_Error *err);

     int
     dwarf_dieoffset(Dwarf_Die die, Dwarf_Off *ret_offset, Dwarf_Error *err);

     int
     dwarf_get_cu_die_offset_given_cu_header_offset(Dwarf_Debug dbg, Dwarf_Off in_cu_header_offset, Dwarf_Off *out_cu_die_offset,
	 Dwarf_Error *err);

     int
     dwarf_get_cu_die_offset_given_cu_header_offset_b(Dwarf_Debug dbg, Dwarf_Off in_cu_header_offset, Dwarf_Bool is_info,
	 Dwarf_Off *out_cu_die_offset, Dwarf_Error *err);

DESCRIPTION

     These functions are used to retrieve offsets for DWARF debugging information entries.

     Function dwarf_die_CU_offset() returns the offset of the debugging information entry referenced by argument die relative to the start of its
     containing compilation unit.  Argument ret_offset should point to the location that is to hold the returned offset.  If argument err is non-
     NULL, it will be used to return an error descriptor in case of an error.

     Function dwarf_die_CU_offset_range() returns the section-relative offset and length of the compilation unit containing the debugging informa-
     tion entry referenced by argument die.  Argument cu_offset should point to a location that will hold the returned offset.	Argument cu_length
     should point to a location that will hold the returned length of the compilation unit.  If argument err is non-NULL, it will be used to
     return an error descriptor in case of an error.

     Function dwarf_dieoffset() retrieves the section-relative offset of the debugging information entry referenced by argument die.  Argument
     ret_offset should point to a location that is to hold the returned section-relative offset.  If argument err is non-NULL, it will be used to
     return an error descriptor in case of an error.

     Function dwarf_get_cu_die_offset_given_cu_header_offset() returns the offset for the first debugging information entry for a compilation
     unit, given an offset to the header of the compilation unit.  Argument dbg should reference a valid debugging context allocated using
     dwarf_init(3).  Argument in_cu_header_offset contains the offset to the start of a compilation unit.  Argument out_cu_die_offset points to a
     location that will hold the returned offset.  If argument err is non-NULL, it will be used to return an error descriptor in case of an error.

     Function dwarf_get_cu_die_offset_given_cu_header_offset_b() behaves identically to the function
     dwarf_get_cu_die_offset_given_cu_header_offset() when the argument is_info is non-zero.  When the argument is_info is zero, function
     dwarf_get_cu_die_offset_given_cu_header_offset_b() returns the offset for the first debugging information entry for a type unit, given an
     offset to the header of the type unit in argument in_cu_header_offset.  Argument out_cu_die_offset points to a location that will hold the
     returned offset.  If the argument err is non-NULL, it will be used to return an error descriptor in case of an error.

RETURN VALUES

     On success, these functions return DW_DLV_OK.  In case of an error, these functions return DW_DLV_ERROR and set argument err.

     Function dwarf_get_cu_die_offset_given_cu_header_offset() and dwarf_get_cu_die_offset_given_cu_header_offset_b() returns DW_DLV_NO_ENTRY and
     sets argument err if there is no compilation or type unit located at the offset specified in argument in_cu_header_offset.

ERRORS

     These functions may fail with the following errors:

     [DW_DLE_ARGUMENT]	One of the arguments cu_length, cu_offset, dbg, die, out_cu_die_offset or ret_offset was NULL.

     [DW_DLE_NO_ENTRY]	Argument in_cu_header_offset specified an unknown offset.

SEE ALSO

     dwarf(3), dwarf_next_cu_header(3), dwarf_offdie(3), dwarf_offdie_b(3)

BSD
								 December 21, 2014							       BSD