Source: gnu_ext_dynamic.ml (p.linksem.0.8.doc.src.linksem

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This should match something *) let elf_dt_gnu_posflag_1 : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939523838))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffdfd*) let elf_dt_gnu_relcount : Nat_big_num.num= (Nat_big_num.mul( (Nat_big_num.of_int 939524093))( (Nat_big_num.of_int 2))) (*0x6ffffffa*) let elf_dt_gnu_relacount : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939524092))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6FFFFFF9*) let elf_dt_gnu_syminent : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939523839))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffdff*) let elf_dt_gnu_syminfo : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939523967))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffeff*) let elf_dt_gnu_syminsz : Nat_big_num.num= (Nat_big_num.mul( (Nat_big_num.of_int 939523839))( (Nat_big_num.of_int 2))) (*0x6ffffdfe*) let elf_dt_gnu_valrnghi : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939523839))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffdff*) let elf_dt_gnu_valrnglo : Nat_big_num.num= ( Nat_big_num.mul( (Nat_big_num.of_int 939523712))( (Nat_big_num.of_int 2))) (*0x6ffffd00*) let elf_dt_gnu_verdef : Nat_big_num.num= (Nat_big_num.mul( (Nat_big_num.of_int 939524094))( (Nat_big_num.of_int 2))) (*0x6ffffffc*) let elf_dt_gnu_verdefnum : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939524094))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffffd*) let elf_dt_gnu_verneed : Nat_big_num.num= (Nat_big_num.mul( (Nat_big_num.of_int 939524095))( (Nat_big_num.of_int 2))) (*0x6ffffffe*) let elf_dt_gnu_verneednum : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939524095))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6fffffff*) let elf_dt_gnu_versym : Nat_big_num.num= (Nat_big_num.mul( (Nat_big_num.of_int 939524088))( (Nat_big_num.of_int 2))) (*0x6ffffff0*) (** Not present in the LSB but turns up in "real" ELF files... *) let elf_dt_gnu_hash : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939523962))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffef5*) let elf_dt_gnu_flags_1 : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 939524093))( (Nat_big_num.of_int 2)))( (Nat_big_num.of_int 1))) (*0x6ffffffb*) let elf_dt_gnu_checksum : Nat_big_num.num= ( Nat_big_num.mul( (Nat_big_num.of_int 939523836))( (Nat_big_num.of_int 2))) (* 0x6FFFFDF8 *) let elf_dt_gnu_prelinked : Nat_big_num.num= (Nat_big_num.add ( Nat_big_num.mul( (Nat_big_num.of_int 2))( (Nat_big_num.of_int 939523834)))( (Nat_big_num.of_int 1))) (* 0x6FFFFDF5 *) (** Extended DT flags for FLAGS_1 dynamic section types. Taken from GLibC source * as they appear to be completely unspecified! *) let gnu_df_1_now : Nat_big_num.num= ( (Nat_big_num.of_int 1)) (*0x00000001*) let gnu_df_1_global : Nat_big_num.num= ( (Nat_big_num.of_int 2)) (*0x00000002*) let gnu_df_1_group : Nat_big_num.num= ( (Nat_big_num.of_int 4)) (*0x00000004*) let gnu_df_1_nodelete : Nat_big_num.num= ( (Nat_big_num.of_int 8)) (*0x00000008*) let gnu_df_1_loadfltr : Nat_big_num.num= ( (Nat_big_num.of_int 16)) (*0x00000010*) let gnu_df_1_initfirst : Nat_big_num.num= ( (Nat_big_num.of_int 32)) (*0x00000020*) let gnu_df_1_noopen : Nat_big_num.num= ( (Nat_big_num.of_int 64)) (*0x00000040*) let gnu_df_1_origin : Nat_big_num.num= ( (Nat_big_num.of_int 128)) (*0x00000080*) let gnu_df_1_direct : Nat_big_num.num= ( (Nat_big_num.of_int 256)) (*0x00000100*) let gnu_df_1_trans : Nat_big_num.num= ( (Nat_big_num.of_int 512)) (*0x00000200*) let gnu_df_1_interpose : Nat_big_num.num= ( (Nat_big_num.of_int 1024)) (*0x00000400*) let gnu_df_1_nodeflib : Nat_big_num.num= ( (Nat_big_num.of_int 2048)) (*0x00000800*) let gnu_df_1_nodump : Nat_big_num.num= ( (Nat_big_num.of_int 4096)) (*0x00001000*) let gnu_df_1_confalt : Nat_big_num.num= ( (Nat_big_num.of_int 8192)) (*0x00002000*) let gnu_df_1_endfiltee : Nat_big_num.num= ( (Nat_big_num.of_int 16384)) (*0x00004000*) let gnu_df_1_dispreldne : Nat_big_num.num= ( (Nat_big_num.of_int 32768)) (*0x00008000*) let gnu_df_1_disprelpnd : Nat_big_num.num= ( (Nat_big_num.of_int 65536)) (*0x00010000*) (** [gnu_string_of_dt_flag1 m] produces a string based representation of GNU * extensions flag_1 value [m]. *) (*val gnu_string_of_dt_flag_1 : natural -> string*) let gnu_string_of_dt_flag_1 flag:string= (if check_flag flag( (Nat_big_num.of_int 0)) then "None" else if check_flag flag gnu_df_1_now then "NOW" else if check_flag flag gnu_df_1_global then "GLOBAL" else if check_flag flag gnu_df_1_group then "GROUP" else if check_flag flag gnu_df_1_nodelete then "NODELETE" else if check_flag flag gnu_df_1_loadfltr then "LOADFLTR" else if check_flag flag gnu_df_1_initfirst then "INITFIRST" else if check_flag flag gnu_df_1_noopen then "NOOPEN" else if check_flag flag gnu_df_1_origin then "ORIGIN" else if check_flag flag gnu_df_1_direct then "DIRECT" else if check_flag flag gnu_df_1_trans then "TRANS" else if check_flag flag gnu_df_1_interpose then "INTERPOSE" else if check_flag flag gnu_df_1_nodeflib then "NODEFLIB" else if check_flag flag gnu_df_1_nodump then "NODUMP" else if check_flag flag gnu_df_1_confalt then "CONFALT" else if check_flag flag gnu_df_1_endfiltee then "ENDFILTEE" else if check_flag flag gnu_df_1_dispreldne then "DISPRELDNE" else if check_flag flag gnu_df_1_disprelpnd then "DISPRELPND" else if check_flag flag ( Nat_big_num.add gnu_df_1_nodelete gnu_df_1_now) then "NOW NODELETE" else if check_flag flag ( Nat_big_num.add gnu_df_1_nodelete gnu_df_1_initfirst) then "NODELETE INITFIRST" else (* XXX: add more as necessary *) "Invalid GNU dynamic flag") (** [gnu_ext_os_additional_ranges m] checks whether dynamic section type [m] * lies within the ranges set aside for GNU specific functionality. * NB: quite ad hoc as this is not properly specified anywhere. *) (*val gnu_ext_os_additional_ranges : natural -> bool*) let gnu_ext_os_additional_ranges m:bool= (if Nat_big_num.greater_equal m elf_dt_gnu_addrrnglo && Nat_big_num.less_equal m elf_dt_gnu_addrrnghi then true else Nat_big_num.equal (* ad hoc extensions go here... *) m elf_dt_gnu_verneed || (Nat_big_num.equal m elf_dt_gnu_verneednum || (Nat_big_num.equal m elf_dt_gnu_versym || (Nat_big_num.equal m elf_dt_gnu_verdef || (Nat_big_num.equal m elf_dt_gnu_verdefnum || (Nat_big_num.equal m elf_dt_gnu_flags_1 || (Nat_big_num.equal m elf_dt_gnu_relcount || (Nat_big_num.equal m elf_dt_gnu_relacount || (Nat_big_num.equal m elf_dt_gnu_checksum || Nat_big_num.equal m elf_dt_gnu_prelinked))))))))) (** [gnu_ext_tag_correspondence_of_tag0 m] produces a tag correspondence for the * extended GNU-specific dynamic section types [m]. Used to provide the ABI * specific functionality expected of the corresponding function in the elf_dynamic * module. *) (*val gnu_ext_tag_correspondence_of_tag0 : natural -> error tag_correspondence*) let gnu_ext_tag_correspondence_of_tag0 m:(tag_correspondence)error= (if Nat_big_num.equal m elf_dt_gnu_hash then return C_Ptr else if Nat_big_num.equal m elf_dt_gnu_flags_1 then return C_Val else if Nat_big_num.equal m elf_dt_gnu_versym then return C_Ptr else if Nat_big_num.equal m elf_dt_gnu_verneednum then return C_Val else if Nat_big_num.equal m elf_dt_gnu_verneed then return C_Ptr else if Nat_big_num.equal m elf_dt_gnu_verdef then return C_Ptr else if Nat_big_num.equal m elf_dt_gnu_verdefnum then return C_Val else if Nat_big_num.equal m elf_dt_gnu_relcount then return C_Val else if Nat_big_num.equal m elf_dt_gnu_relacount then return C_Val else if Nat_big_num.equal m elf_dt_gnu_checksum then return C_Val else if Nat_big_num.equal m elf_dt_gnu_prelinked then return C_Val else fail "gnu_ext_tag_correspondence_of_tag0: invalid dynamic tag") (** [gnu_ext_tag_correspondence_of_tag m] produces a tag correspondence for the * extended GNU-specific dynamic section types [m]. Used to provide the ABI * specific functionality expected of the corresponding function in the elf_dynamic * module. * TODO: examine whether this and the function above really need separating into * two functions. *) (*val gnu_ext_tag_correspondence_of_tag : natural -> error tag_correspondence*) let gnu_ext_tag_correspondence_of_tag m:(tag_correspondence)error= (if Nat_big_num.greater_equal m elf_dt_gnu_addrrnglo && Nat_big_num.less_equal m elf_dt_gnu_addrrnghi then return C_Ptr else if Nat_big_num.greater_equal m elf_dt_gnu_valrnglo && Nat_big_num.less_equal m elf_dt_gnu_valrnghi then return C_Val else if gnu_ext_os_additional_ranges m then gnu_ext_tag_correspondence_of_tag0 m else if Nat_big_num.equal m elf_dt_gnu_syminsz then return C_Val (** unsure *) else if Nat_big_num.equal m elf_dt_gnu_syminfo then return C_Ptr (** unsure *) else if Nat_big_num.equal m elf_dt_gnu_syminent then return C_Val (** unsure *) else if Nat_big_num.equal m elf_dt_gnu_posflag_1 then return C_Val (** unsure *) else if Nat_big_num.equal m elf_dt_gnu_num then return C_Ignored else if Nat_big_num.equal m elf_dt_gnu_filter then return C_Val (** unsure *) else if Nat_big_num.equal m elf_dt_gnu_auxiliary then return C_Val (** unsure *) else fail ("gnu_ext_tag_correspondence_of_tag: unrecognised GNU dynamic tag")) (** [gnu_ext_elf32_value_of_elf32_dyn0 dyn] extracts a dynamic value from the * dynamic section entry [dyn] under the assumption that its type is a GNU * extended dynamic section type. Fails otherwise. Used to provide the * ABI-specific functionality expected of the corresponding functions in * elf_dynamic.lem. *) (*val gnu_ext_elf32_value_of_elf32_dyn0 : elf32_dyn -> string_table -> error elf32_dyn_value*) let gnu_ext_elf32_value_of_elf32_dyn0 dyn stbl:(((Uint32_wrapper.uint32),(Uint32_wrapper.uint32))dyn_value)error= (let tag = (Nat_big_num.abs (Nat_big_num.of_int32 dyn.elf32_dyn_tag)) in if Nat_big_num.equal tag elf_dt_gnu_hash then bind (match dyn.elf32_dyn_d_un with | D_Val v -> fail "gnu_ext_elf32_value_of_elf32_dyn: GNU_HASH must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: GNU_HASH must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_flags_1 then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: FLAGS_1 must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: FlAGS_1 must be a Val" ) (fun f -> return (Flags1 (Uint32_wrapper.to_bigint f))) else if Nat_big_num.equal tag elf_dt_gnu_versym then bind (match dyn.elf32_dyn_d_un with | D_Val v -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERSYM must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERSYM must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_verdef then bind (match dyn.elf32_dyn_d_un with | D_Val v -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERDEF must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERDEF must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_verdefnum then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERDEFNUM must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERDEFNUM must be a Val" ) (fun sz -> return (Numeric (Uint32_wrapper.to_bigint sz))) else if Nat_big_num.equal tag elf_dt_gnu_verneednum then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERNEEDNUM must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERNEEDNUM must be a Val" ) (fun sz -> return (Numeric (Uint32_wrapper.to_bigint sz))) else if Nat_big_num.equal tag elf_dt_gnu_verneed then bind (match dyn.elf32_dyn_d_un with | D_Val v -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERNEED must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: VERNEED must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_relcount then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: RELCOUNT must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: RELCOUNT must be a Val" ) (fun sz -> return (Numeric (Uint32_wrapper.to_bigint sz))) else if Nat_big_num.equal tag elf_dt_gnu_relacount then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: RELACOUNT must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: RELACOUNT must be a Val" ) (fun sz -> return (Numeric (Uint32_wrapper.to_bigint sz))) else if Nat_big_num.equal tag elf_dt_gnu_checksum then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: CHECKSUM must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: CHECKSUM must be a Val" ) (fun sz -> return (Checksum (Uint32_wrapper.to_bigint sz))) else if Nat_big_num.equal tag elf_dt_gnu_prelinked then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: GNU_PRELINKED must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: GNU_PRELINKED must be a Val" ) (fun off -> return (Timestamp (Uint32_wrapper.to_bigint off))) else fail "gnu_ext_elf32_value_of_elf32_dyn0: unrecognised GNU dynamic tag") (** [gnu_ext_elf64_value_of_elf64_dyn0 dyn] extracts a dynamic value from the * dynamic section entry [dyn] under the assumption that its type is a GNU * extended dynamic section type. Fails otherwise. Used to provide the * ABI-specific functionality expected of the corresponding functions in * elf_dynamic.lem. *) (*val gnu_ext_elf64_value_of_elf64_dyn0 : elf64_dyn -> string_table -> error elf64_dyn_value*) let gnu_ext_elf64_value_of_elf64_dyn0 dyn stbl:(((Uint64_wrapper.uint64),(Uint64_wrapper.uint64))dyn_value)error= (let tag = (Nat_big_num.abs (Nat_big_num.of_int64 dyn.elf64_dyn_tag)) in if Nat_big_num.equal tag elf_dt_gnu_hash then bind (match dyn.elf64_dyn_d_un with | D_Val v -> fail "gnu_ext_elf64_value_of_elf64_dyn: GNU_HASH must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: GNU_HASH must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_flags_1 then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: FLAGS_1 must be a Val" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: FlAGS_1 must be a Val" ) (fun f -> return (Flags1 (Ml_bindings.nat_big_num_of_uint64 f))) else if Nat_big_num.equal tag elf_dt_gnu_versym then bind (match dyn.elf64_dyn_d_un with | D_Val v -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERSYM must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERSYM must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_verdef then bind (match dyn.elf64_dyn_d_un with | D_Val v -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERDEF must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERDEF must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_verdefnum then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf64_dyn: VERDEFNUM must be a Val" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf64_dyn: VERDEFNUM must be a Val" ) (fun sz -> return (Numeric (Ml_bindings.nat_big_num_of_uint64 sz))) else if Nat_big_num.equal tag elf_dt_gnu_verneednum then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERNEEDNUM must be a Val" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERNEEDNUM must be a Val" ) (fun sz -> return (Numeric (Ml_bindings.nat_big_num_of_uint64 sz))) else if Nat_big_num.equal tag elf_dt_gnu_verneed then bind (match dyn.elf64_dyn_d_un with | D_Val v -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERNEED must be a PTR" | D_Ptr p -> return p | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: VERNEED must be a PTR" ) (fun addr -> return (Address addr)) else if Nat_big_num.equal tag elf_dt_gnu_relcount then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: RELCOUNT must be a Val" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: RELCOUNT must be a Val" ) (fun sz -> return (Numeric (Ml_bindings.nat_big_num_of_uint64 sz))) else if Nat_big_num.equal tag elf_dt_gnu_relacount then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: RELACOUNT must be a Val" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: RELACOUNT must be a Val" ) (fun sz -> return (Numeric (Ml_bindings.nat_big_num_of_uint64 sz))) else if Nat_big_num.equal tag elf_dt_gnu_checksum then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: CHECKSUM must be a Val" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: CHECKSUM must be a Val" ) (fun sz -> return (Checksum (Ml_bindings.nat_big_num_of_uint64 sz))) else if Nat_big_num.equal tag elf_dt_gnu_prelinked then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: GNU_PRELINKED must be a Val" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: GNU_PRELINKED must be a Val" ) (fun off -> return (Timestamp (Ml_bindings.nat_big_num_of_uint64 off))) else fail "gnu_ext_elf64_value_of_elf64_dyn0: unrecognised GNU dynamic tag") (** [gnu_ext_elf32_value_of_elf32_dyn dyn] extracts a dynamic value from the * dynamic section entry [dyn] under the assumption that its type is a GNU * extended dynamic section type. Fails otherwise. Used to provide the * ABI-specific functionality expected of the corresponding functions in * elf_dynamic.lem. * TODO: some of these cases are missing as they have never come up in "real" * ELF files that have been processed as part of validation. Try and find some * files that do actually exhibit these. *) (*val gnu_ext_elf32_value_of_elf32_dyn : elf32_dyn -> string_table -> error elf32_dyn_value*) let gnu_ext_elf32_value_of_elf32_dyn dyn stbl:(elf32_dyn_value)error= (let tag = (Nat_big_num.abs (Nat_big_num.of_int32 dyn.elf32_dyn_tag)) in if gnu_ext_os_additional_ranges tag then (* this should cover valrngs and addrrngs *) gnu_ext_elf32_value_of_elf32_dyn0 dyn stbl else if Nat_big_num.equal tag elf_dt_gnu_syminsz then bind (match dyn.elf32_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf32_value_of_elf32_dyn: SYMINSZ must be a VAL" | D_Ignored i -> fail "gnu_ext_elf32_value_of_elf32_dyn: SYMINSZ must be a VAL" ) (fun sz -> return (Size sz)) else if Nat_big_num.equal tag elf_dt_gnu_syminfo then fail "SYMINFO" (* XXX: never seen in 32-bit ELF *) else if Nat_big_num.equal tag elf_dt_gnu_syminent then fail "SYMINENT" (* XXX: never seen in 32-bit ELF *) else if Nat_big_num.equal tag elf_dt_gnu_posflag_1 then fail "POSFLAG_1" (* XXX: never seen in 32-bit ELF *) else if Nat_big_num.equal tag elf_dt_gnu_num then fail "NUM" (* XXX: never seen in 32-bit ELF *) else if Nat_big_num.equal tag elf_dt_gnu_filter then fail "FILTER" (* XXX: never seen in 32-bit ELF *) else if Nat_big_num.equal tag elf_dt_gnu_auxiliary then fail "AUXILIARY" (* XXX: never seen in 32-bit ELF *) else fail "gnu_ext_elf32_value_of_elf32_dyn: unrecognised GNU dynamic tag") (** [gnu_ext_elf64_value_of_elf64_dyn dyn] extracts a dynamic value from the * dynamic section entry [dyn] under the assumption that its type is a GNU * extended dynamic section type. Fails otherwise. Used to provide the * ABI-specific functionality expected of the corresponding functions in * elf_dynamic.lem. * TODO: some of these cases are missing as they have never come up in "real" * ELF files that have been processed as part of validation. Try and find some * files that do actually exhibit these. *) (*val gnu_ext_elf64_value_of_elf64_dyn : elf64_dyn -> string_table -> error elf64_dyn_value*) let gnu_ext_elf64_value_of_elf64_dyn dyn stbl:(elf64_dyn_value)error= (let tag = (Nat_big_num.abs (Nat_big_num.of_int64 dyn.elf64_dyn_tag)) in if gnu_ext_os_additional_ranges tag then (* this should cover valrngs and addrrngs *) gnu_ext_elf64_value_of_elf64_dyn0 dyn stbl else if Nat_big_num.equal tag elf_dt_gnu_syminsz then bind (match dyn.elf64_dyn_d_un with | D_Val v -> return v | D_Ptr p -> fail "gnu_ext_elf64_value_of_elf64_dyn: SYMINSZ must be a VAL" | D_Ignored i -> fail "gnu_ext_elf64_value_of_elf64_dyn: SYMINSZ must be a VAL" ) (fun sz -> return (Size sz)) else if Nat_big_num.equal tag elf_dt_gnu_syminfo then fail "SYMINFO" (* XXX: fill in as seen *) else if Nat_big_num.equal tag elf_dt_gnu_syminent then fail "SYMINENT" (* XXX: fill in as seen *) else if Nat_big_num.equal tag elf_dt_gnu_posflag_1 then fail "POSFLAG_1" (* XXX: fill in as seen *) else if Nat_big_num.equal tag elf_dt_gnu_num then fail "NUM" (* XXX: fill in as seen *) else if Nat_big_num.equal tag elf_dt_gnu_filter then fail "FILTER" (* XXX: fill in as seen *) else if Nat_big_num.equal tag elf_dt_gnu_auxiliary then fail "AUXILIARY" (* XXX: fill in as seen *) else fail "gnu_ext_elf64_value_of_elf64_dyn: unrecognised GNU dynamic tag") (** [string_of_gnu_ext_dynamic_tag0 m] produces a string based representation of * GNU extensions dynamic tag value [m]. *) (*val string_of_gnu_ext_dynamic_tag0 : natural -> string*) let string_of_gnu_ext_dynamic_tag0 m:string= (if Nat_big_num.equal m elf_dt_gnu_hash then "GNU_HASH" else if Nat_big_num.equal m elf_dt_gnu_flags_1 then "FLAGS_1" else if Nat_big_num.equal m elf_dt_gnu_versym then "VERSYM" else if Nat_big_num.equal m elf_dt_gnu_verneednum then "VERNEEDNUM" else if Nat_big_num.equal m elf_dt_gnu_verneed then "VERNEED" else if Nat_big_num.equal m elf_dt_gnu_relcount then "RELCOUNT" else if Nat_big_num.equal m elf_dt_gnu_relacount then "RELACOUNT" else if Nat_big_num.equal m elf_dt_gnu_verdefnum then "VERDEFNUM" else if Nat_big_num.equal m elf_dt_gnu_verdef then "VERDEF" else if Nat_big_num.equal m elf_dt_gnu_checksum then "CHECKSUM" else if Nat_big_num.equal m elf_dt_gnu_prelinked then "GNU_PRELINKED" else "Invalid dynamic tag") (** [string_of_gnu_ext_dynamic_tag m] produces a string based representation of * GNU extensions dynamic tag value [m]. *) (*val string_of_gnu_ext_dynamic_tag : natural -> string*) let string_of_gnu_ext_dynamic_tag m:string= (if Nat_big_num.greater_equal m elf_dt_gnu_addrrnglo && Nat_big_num.less_equal m elf_dt_gnu_addrrnghi then string_of_gnu_ext_dynamic_tag0 m else if Nat_big_num.greater_equal m elf_dt_gnu_valrnglo && Nat_big_num.less_equal m elf_dt_gnu_valrnghi then string_of_gnu_ext_dynamic_tag0 m else if gnu_ext_os_additional_ranges m then string_of_gnu_ext_dynamic_tag0 m else if Nat_big_num.equal m elf_dt_gnu_syminsz then "SYMINSZ" else if Nat_big_num.equal m elf_dt_gnu_syminfo then "SYMINFO" else if Nat_big_num.equal m elf_dt_gnu_syminent then "SYMINENT" else if Nat_big_num.equal m elf_dt_gnu_posflag_1 then "POSFLAG_1" else if Nat_big_num.equal m elf_dt_gnu_num then "NUM" else if Nat_big_num.equal m elf_dt_gnu_filter then "FILTER" else if Nat_big_num.equal m elf_dt_gnu_auxiliary then "AUXILIARY" else "Invalid dynamic tag")