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Library functions that are used in the silver searcher including some from the pcre library #1138

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merged 4 commits into from
Sep 12, 2023
Merged

Library functions that are used in the silver searcher including some from the pcre library #1138

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5713231
Add some library functions that are used in the silver searcher
karoliineh Aug 16, 2023
039edfe
Move fnmatch to posix group
karoliineh Aug 21, 2023
c416816
Fix pthread_setaffinity_np and pthread_getaffinity_np
karoliineh Aug 21, 2023
0bae7fd
Merge branch 'master' into libfuns-silver-searcher
sim642 Sep 12, 2023
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15 changes: 15 additions & 0 deletions src/analyses/libraryFunctions.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -196,6 +196,7 @@ let posix_descs_list: (string * LibraryDesc.t) list = LibraryDsl.[
("unsetenv", unknown ~attrs:[ThreadUnsafe] [drop "name" [r]]);
("lseek", unknown [drop "fd" []; drop "offset" []; drop "whence" []]);
("fcntl", unknown (drop "fd" [] :: drop "cmd" [] :: VarArgs (drop' [r; w])));
("__open_missing_mode", unknown []);
("fseeko", unknown [drop "stream" [r_deep; w_deep]; drop "offset" []; drop "whence" []]);
("fileno", unknown [drop "stream" [r_deep; w_deep]]);
("fdopen", unknown [drop "fd" []; drop "mode" [r]]);
Expand Down Expand Up @@ -286,6 +287,7 @@ let posix_descs_list: (string * LibraryDesc.t) list = LibraryDsl.[
("siglongjmp", special [__ "env" [r]; __ "value" []] @@ fun env value -> Longjmp { env; value });
("ftw", unknown ~attrs:[ThreadUnsafe] [drop "dirpath" [r]; drop "fn" [s]; drop "nopenfd" []]); (* TODO: use Call instead of Spawn *)
("nftw", unknown ~attrs:[ThreadUnsafe] [drop "dirpath" [r]; drop "fn" [s]; drop "nopenfd" []; drop "flags" []]); (* TODO: use Call instead of Spawn *)
("fnmatch", unknown [drop "pattern" [r]; drop "string" [r]; drop "flags" []]);
]

(** Pthread functions. *)
Expand Down Expand Up @@ -351,6 +353,8 @@ let pthread_descs_list: (string * LibraryDesc.t) list = LibraryDsl.[
("pthread_mutexattr_destroy", unknown [drop "attr" [f]]);
("pthread_attr_setschedparam", unknown [drop "attr" [r; w]; drop "param" [r]]);
("sem_timedwait", unknown [drop "sem" [r]; drop "abs_timeout" [r]]); (* no write accesses to sem because sync primitive itself has no race *)
("pthread_setaffinity_np", unknown [drop "thread" []; drop "cpusetsize" []; drop "cpuset" [r]]);
("pthread_getaffinity_np", unknown [drop "thread" []; drop "cpusetsize" []; drop "cpuset" [w]]);
]

(** GCC builtin functions.
Expand Down Expand Up @@ -461,6 +465,7 @@ let linux_userspace_descs_list: (string * LibraryDesc.t) list = LibraryDsl.[
("sysinfo", unknown [drop "info" [w_deep]]);
("__xpg_basename", unknown [drop "path" [r]]);
("ptrace", unknown (drop "request" [] :: VarArgs (drop' [r_deep; w_deep]))); (* man page has 4 arguments, but header has varargs and real-world programs may call with <4 *)
("madvise", unknown [drop "addr" []; drop "length" []; drop "advice" []]);
]

let big_kernel_lock = AddrOf (Cil.var (Cilfacade.create_var (makeGlobalVar "[big kernel lock]" intType)))
Expand Down Expand Up @@ -810,6 +815,15 @@ let ncurses_descs_list: (string * LibraryDesc.t) list = LibraryDsl.[
("wbkgd", unknown [drop "win" [r_deep; w_deep]; drop "ch" []]);
]

let pcre_descs_list: (string * LibraryDesc.t) list = LibraryDsl.[
("pcre_compile", unknown [drop "pattern" [r]; drop "options" []; drop "errptr" [w]; drop "erroffset" [w]; drop "tableptr" [r]]);
("pcre_compile2", unknown [drop "pattern" [r]; drop "options" []; drop "errorcodeptr" [w]; drop "errptr" [w]; drop "erroffset" [w]; drop "tableptr" [r]]);
("pcre_config", unknown [drop "what" []; drop "where" [w]]);
("pcre_exec", unknown [drop "code" [r_deep]; drop "extra" [r_deep]; drop "subject" [r]; drop "length" []; drop "startoffset" []; drop "options" []; drop "ovector" [w]; drop "ovecsize" []]);
("pcre_study", unknown [drop "code" [r_deep]; drop "options" []; drop "errptr" [w]]);
("pcre_version", unknown []);
]

let libraries = Hashtbl.of_list [
("c", c_descs_list @ math_descs_list);
("posix", posix_descs_list);
Expand All @@ -822,6 +836,7 @@ let libraries = Hashtbl.of_list [
("sv-comp", svcomp_descs_list);
("ncurses", ncurses_descs_list);
("zstd", zstd_descs_list);
("pcre", pcre_descs_list);
]

let activated_library_descs: (string, LibraryDesc.t) Hashtbl.t ResettableLazy.t =
Expand Down
3 changes: 2 additions & 1 deletion src/util/options.schema.json
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Expand Up @@ -1284,7 +1284,8 @@
"goblint",
"sv-comp",
"ncurses",
"zstd"
"zstd",
"pcre"
]
},
"default": [
Expand Down
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