DWARF_GET_FDE_RANGE(3) FreeBSD Library Functions Manual
NAME
dwarf_get_fde_range - retrieve range information from an FDE descriptor
LIBRARY
DWARF Access Library (libdwarf, -ldwarf)
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
Function dwarf_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)
FreeBSD 13.1-RELEASE-p6 May 22, 2011 FreeBSD 13.1-RELEASE-p6
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