NAME
dwarf_get_fde_range —
retrieve range information from an FDE
descriptor
LIBRARY
library “libdwarf”
SYNOPSIS
#include
<libdwarf.h>
int
dwarf_get_fde_range(Dwarf_Fde
fde, Dwarf_Addr *low_pc,
Dwarf_Unsigned *func_len, Dwarf_Ptr
*fde_bytes, Dwarf_Unsigned *fde_byte_len,
Dwarf_Off *cie_offset, Dwarf_Signed
*cie_index, Dwarf_Off *fde_offset,
Dwarf_Error *err);
DESCRIPTION
Functiondwarf_get_fde_range()
retrieves range and offset information from a given FDE descriptor.
Argument fde should reference a valid DWARF FDE descriptor.
Argument low_pc should point to a location that will be set to the lowest program counter address covered by the FDE descriptor.
Argument func_len should point to a location that will hold the length in bytes of the address range covered by the FDE descriptor.
Argument fde_bytes should point to a location that will be set to a pointer to the content of the FDE descriptor itself.
Argument fde_byte_len should point to a location that will hold the length in bytes of the FDE descriptor itself.
Argument cie_offset should point to a location that will be set to the offset, relative to the DWARF “.debug_frame” section, of the CIE descriptor associated with the given FDE descriptor.
Argument cie_index should point to a location that will hold the index of the CIE descriptor associated with the FDE descriptor. The returned value is a zero-based index into the array of CIE descriptors returned by a prior call to functions dwarf_get_fde_list(3) or dwarf_get_fde_list_eh(3).
Argument fde_offset should point to a location that will be set to the offset, relative to the DWARF “.debug_frame” section, of the FDE descriptor.
If argument err is not NULL, it will be used to store error information in case of an error.
RETURN VALUES
Function dwarf_get_fde_range() 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_range() can fail
with:
- [
DW_DLE_ARGUMENT] - One of the arguments fde, low_pc, func_len, fde_bytes, fde_byte_len, cie_offset, cie_index or fde_offset was NULL.
SEE ALSO
dwarf(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_instr_bytes(3), dwarf_get_fde_list(3), dwarf_get_fde_list_eh(3), dwarf_get_fde_n(3)