NAME
dwarf_get_fde_instr_bytes —
retrieve instructions from FDE
descritpor
LIBRARY
library “libdwarf”
SYNOPSIS
#include
<libdwarf.h>
int
dwarf_get_fde_instr_bytes(Dwarf_Fde
fde, Dwarf_Ptr *ret_inst,
Dwarf_Unsigned *ret_len, Dwarf_Error
*error);
DESCRIPTION
Functiondwarf_get_fde_instr_bytes()
retrieves instruction bytes from a given FDE descriptor.
Argument fde should reference a valid DWARF FDE descriptor.
Argument ret_inst should point to a location that will be set to a pointer to an array of bytes containing the instructions of the FDE descriptor.
Argument ret_len should point to a location that will hold the length in bytes of the instructions returned in argument ret_inst.
If argument err is not NULL, it will be used to store error information in case of an error.
Applications can use the function dwarf_expand_frame_instructions(3) to parse and expand the returned instruction bytes into an array of Dwarf_Frame_Op descriptors.
RETURN VALUES
Function dwarf_get_fde_instr_bytes()
returns DW_DLV_OK when it succeeds. In case of an
error, it returns DW_DLV_ERROR and sets the argument
err.
ERRORS
Function dwarf_get_fde_instr_bytes() can
fail with:
- [
DW_DLE_ARGUMENT] - One of the arguments fde, ret_inst or ret_len was NULL.
SEE ALSO
dwarf(3), dwarf_expand_frame_instructions(3), dwarf_get_cie_index(3), dwarf_get_cie_info(3), dwarf_get_cie_of_fde(3), dwarf_get_fde_at_pc(3), dwarf_get_fde_info_for_all_regs(3), dwarf_get_fde_info_for_all_regs3(3), dwarf_get_fde_info_for_cfa_reg3(3), dwarf_get_fde_info_for_reg(3), dwarf_get_fde_info_for_reg3(3), dwarf_get_fde_list(3), dwarf_get_fde_list_eh(3), dwarf_get_fde_n(3), dwarf_get_fde_range(3)