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$Id: dwarf_get_fde_range.3 3644 2018-10-15 19:55:01Z jkoshy $
.Dd May 22, 2011 .Dt DWARF_GET_FDE_RANGE 3 .Os .Sh NAME .Nm dwarf_get_fde_range .Nd retrieve range information from an FDE descriptor .Sh LIBRARY .Lb libdwarf .Sh SYNOPSIS n libdwarf.h .Ft int .Fo dwarf_get_fde_range .Fa "Dwarf_Fde fde" .Fa "Dwarf_Addr *low_pc" .Fa "Dwarf_Unsigned *func_len" .Fa "Dwarf_Ptr *fde_bytes" .Fa "Dwarf_Unsigned *fde_byte_len" .Fa "Dwarf_Off *cie_offset" .Fa "Dwarf_Signed *cie_index" .Fa "Dwarf_Off *fde_offset" .Fa "Dwarf_Error *err" .Fc .Sh DESCRIPTION Function .Fn dwarf_get_fde_range retrieves range and offset information from a given FDE descriptor.
p Argument .Ar fde should reference a valid DWARF FDE descriptor.
p Argument .Ar low_pc should point to a location that will be set to the lowest program counter address covered by the FDE descriptor.
p Argument .Ar func_len should point to a location that will hold the length in bytes of the address range covered by the FDE descriptor.
p Argument .Ar fde_bytes should point to a location that will be set to a pointer to the content of the FDE descriptor itself.
p Argument .Ar fde_byte_len should point to a location that will hold the length in bytes of the FDE descriptor itself.
p Argument .Ar cie_offset should point to a location that will be set to the offset, relative to the DWARF .Dq ".debug_frame" section, of the CIE descriptor associated with the given FDE descriptor.
p Argument .Ar 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 .Xr dwarf_get_fde_list 3 or .Xr dwarf_get_fde_list_eh 3 .
p Argument .Ar fde_offset should point to a location that will be set to the offset, relative to the DWARF .Dq ".debug_frame" section, of the FDE descriptor.
p If argument .Ar err is not NULL, it will be used to store error information in case of an error. .Sh RETURN VALUES Function .Fn dwarf_get_fde_range returns .Dv DW_DLV_OK when it succeeds. In case of an error, it returns .Dv DW_DLV_ERROR and sets the argument .Ar err . .Sh ERRORS Function .Fn dwarf_get_fde_range can fail with: l -tag -width ".Bq Er DW_DLE_ARGUMENT" t Bq Er DW_DLE_ARGUMENT One of the arguments .Ar fde , .Ar low_pc , .Ar func_len , .Ar fde_bytes , .Ar fde_byte_len , .Ar cie_offset , .Ar cie_index or .Ar fde_offset was NULL. .El .Sh SEE ALSO .Xr dwarf 3 , .Xr dwarf_get_cie_index 3 , .Xr dwarf_get_cie_info 3 , .Xr dwarf_get_cie_of_fde 3 , .Xr dwarf_get_fde_at_pc 3 , .Xr dwarf_get_fde_info_for_all_regs 3 , .Xr dwarf_get_fde_info_for_all_regs3 3 , .Xr dwarf_get_fde_info_for_cfa_reg3 3 , .Xr dwarf_get_fde_info_for_reg 3 , .Xr dwarf_get_fde_info_for_reg3 3 , .Xr dwarf_get_fde_instr_bytes 3 , .Xr dwarf_get_fde_list 3 , .Xr dwarf_get_fde_list_eh 3 , .Xr dwarf_get_fde_n 3