dwarf_add_AT_signed_const.3 revision 261246
Copyright (c) 2011 Kai Wang
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$Id: dwarf_add_AT_signed_const.3 2072 2011-10-27 03:26:49Z jkoshy $

.Dd September 4, 2011 .Os .Dt DWARF_ADD_AT_SIGNED_CONST 3 .Sh NAME .Nm dwarf_add_AT_signed_const , .Nm dwarf_add_AT_unsigned_const .Nd create and attach constant class attributes .Sh LIBRARY .Lb libdwarf .Sh SYNOPSIS n libdwarf.h .Ft Dwarf_P_Attribute .Fo dwarf_add_AT_signed_const .Fa "Dwarf_P_Debug dbg" .Fa "Dwarf_P_Die die" .Fa "Dwarf_Half attr" .Fa "Dwarf_Signed value" .Fa "Dwarf_Error *err" .Fc .Ft Dwarf_P_Attribute .Fo dwarf_add_AT_unsigned_const .Fa "Dwarf_P_Debug dbg" .Fa "Dwarf_P_Die die" .Fa "Dwarf_Half attr" .Fa "Dwarf_Unsigned value" .Fa "Dwarf_Error *err" .Fc .Sh DESCRIPTION These functions create attribute descriptors belonging to the .Sq constant class and attach them to the debugging information entry referenced by argument .Ar die .

p Argument .Ar dbg should reference a DWARF producer instance allocated using .Xr dwarf_producer_init 3 or .Xr dwarf_producer_init_b 3 .

p Argument .Ar die should reference a debugging information entry allocated using .Xr dwarf_new_die 3 .

p Argument .Ar attr specifies the attribute code of the created attribute descriptor.

p Function .Fn dwarf_add_AT_signed_const creates an attribute descriptor with the signed value specified in argument .Ar value .

p Function .Fn dwarf_add_AT_unsigned_const creates an attribute descriptor with the unsigned value specified in argument .Ar value .

p The attribute created by these function will have one of the DWARF forms .Dv DW_FORM_data1 , .Dv DW_FORM_data2 , .Dv DW_FORM_data4 or .Dv DW_FORM_data8 , depending on the size of the value specified in argument .Ar value .

p If argument .Ar err is not NULL, it will be used by these functions to store error information in case of an error. .Sh RETURN VALUES On success, these functions return the created attribute descriptor. In case of an error, these functions return .Dv DW_DLV_BADADDR and set the argument .Ar err . .Sh ERRORS These functions can fail with: l -tag -width ".Bq Er DW_DLE_ARGUMENT" t Bq Er DW_DLE_ARGUMENT Either of the arguments .Ar dbg or .Ar die was NULL. t Bq Er DW_DLE_MEMORY An out of memory condition was encountered during execution. .El .Sh SEE ALSO .Xr dwarf 3 , .Xr dwarf_add_AT_const_value_signedint 3 , .Xr dwarf_add_AT_const_value_unsignedint 3 , .Xr dwarf_add_AT_dataref 3 , .Xr dwarf_add_AT_ref_address 3 , .Xr dwarf_add_AT_targ_address_b 3 , .Xr dwarf_new_die 3 , .Xr dwarf_producer_init 3 , .Xr dwarf_producer_init_b 3