dwarf_add_fde_inst —
add a call frame instruction to a DWARF frame
descriptor
DWARF Access Library (libdwarf, -ldwarf)
#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);
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.
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.
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.
dwarf(3),
dwarf_add_frame_cie(3),
dwarf_add_frame_fde(3),
dwarf_add_frame_fde_b(3),
dwarf_fde_cfa_offset(3),
dwarf_new_fde(3)
The DWARF Debugging Information
Format, Version 4,
http://www.dwarfstd.org/.