dwarf_add_fde_inst(3) [freebsd man page]

DWARF_ADD_FDE_INST(3)					   BSD Library Functions Manual 				     DWARF_ADD_FDE_INST(3)

NAME

     dwarf_add_fde_inst -- add a call frame instruction to a DWARF frame descriptor

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     Dwarf_P_Fde
     dwarf_add_fde_inst(Dwarf_P_Fde fde, Dwarf_Small op, Dwarf_Unsigned val1, Dwarf_Unsigned val2, Dwarf_Error *err);

DESCRIPTION

     Function dwarf_add_fde_inst() adds a call frame instruction to the DWARF frame descriptor referenced by argument fde.

     Argument fde should reference a frame descriptor allocated using dwarf_new_fde(3).

     Argument op specifies the operator for the frame instruction.  The DWARF standard defines the set of legal values for this argument.

     Argument val1 specifies the first operand of the frame instruction.

     Argument val2 specifies the second operand of the frame instruction.

     If argument err is not NULL, it will be used to store error information in case of an error.

RETURN VALUES

     On success, function dwarf_add_fde_inst() returns the frame descriptor given in argument fde.  In case of an error, function
     dwarf_add_fde_inst() returns DW_DLV_BADADDR and sets the argument err.

ERRORS

     Function dwarf_add_fde_inst() can fail with:

     [DW_DLE_ARGUMENT]		      Argument fde was NULL.

     [DW_DLE_FRAME_INSTR_EXEC_ERROR]  The frame instruction operator specified in argument op was invalid.

     [DW_DLE_MEMORY]		      An out of memory condition was encountered during the execution of the function.

SEE ALSO

     dwarf(3), dwarf_add_frame_fde(3), dwarf_add_frame_fde_b(3), dwarf_add_frame_cie(3), dwarf_fde_cfa_offset(3), dwarf_new_fde(3)

     The DWARF Debugging Information Format, Version 4, http://www.dwarfstd.org/.

BSD
								September 26, 2011							       BSD

DWARF_ADD_EXPR_GEN(3)					   BSD Library Functions Manual 				     DWARF_ADD_EXPR_GEN(3)

NAME

     dwarf_add_expr_gen -- add an operator to a location expression descriptor

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     Dwarf_Unsigned
     dwarf_add_expr_gen(Dwarf_P_Expr expr, Dwarf_Small opcode, Dwarf_Unsigned val1, Dwarf_Unsigned val2, Dwarf_Error *err);

DESCRIPTION

     Function dwarf_add_expr_gen() adds a location expression operator to the location expression descriptor referenced by argument expr.

     Argument expr should reference a location expression descriptor allocated using the function dwarf_new_expr(3).

     Argument opcode specifies the operation code of the location expression operator.	Valid values for this argument are those denoted by the
     DW_OP_* constants defined in <libdwarf.h>.

     To generate a DW_OP_addr operation, application code should instead use dwarf_add_expr_addr_b(3).

     Argument val1 specifies the first operand of the location expression operator.

     Argument val2 specifies the second operand of the location expression operator.

     If argument err is not NULL, it will be used to store error information in case of an error.

RETURN VALUES

     On success, function dwarf_add_expr_gen() returns the size in bytes of the location expression byte stream generated.  In case of an error,
     function dwarf_add_expr_gen() returns DW_DLV_NOCOUNT and sets the argument err.

ERRORS

     Function dwarf_add_expr_gen() can fail with:

     [DW_DLE_ARGUMENT]	    Argument expr was NULL.

     [DW_DLE_LOC_EXPR_BAD]  The operation code specified in argument opcode was invalid.

     [DW_DLE_MEMORY]	    An out of memory condition was encountered during the execution of the function.

SEE ALSO

     dwarf(3), dwarf_add_AT_location_expr(3), dwarf_add_expr_addr(3), dwarf_add_expr_addr_b(3), dwarf_expr_current_offset(3),
     dwarf_expr_into_block(3), dwarf_new_expr(3)

BSD
								 September 9, 2011							       BSD