| #!/usr/bin/env python3 |
| |
| """Generate many skeletal functions with a thick call graph spanning a |
| large address space to induce lld to create branch-islands for arm64. |
| |
| """ |
| from __future__ import print_function |
| import random |
| import argparse |
| import string |
| from pprint import pprint |
| from math import factorial |
| from itertools import permutations |
| |
| # This list comes from libSystem.tbd and contains a sizeable subset |
| # of dylib calls available for all MacOS target archs. |
| libSystem_calls = ( |
| "__CurrentRuneLocale", "__DefaultRuneLocale", "__Exit", "__NSGetArgc", |
| "__NSGetArgv", "__NSGetEnviron", "__NSGetMachExecuteHeader", |
| "__NSGetProgname", "__PathLocale", "__Read_RuneMagi", "___Balloc_D2A", |
| "___Bfree_D2A", "___ULtod_D2A", "____mb_cur_max", "____mb_cur_max_l", |
| "____runetype", "____runetype_l", "____tolower", "____tolower_l", |
| "____toupper", "____toupper_l", "___add_ovflpage", "___addel", |
| "___any_on_D2A", "___assert_rtn", "___b2d_D2A", "___big_delete", |
| "___big_insert", "___big_keydata", "___big_return", "___big_split", |
| "___bigtens_D2A", "___bt_close", "___bt_cmp", "___bt_defcmp", |
| "___bt_defpfx", "___bt_delete", "___bt_dleaf", "___bt_fd", |
| "___bt_free", "___bt_get", "___bt_new", "___bt_open", "___bt_pgin", |
| "___bt_pgout", "___bt_put", "___bt_ret", "___bt_search", "___bt_seq", |
| "___bt_setcur", "___bt_split", "___bt_sync", "___buf_free", |
| "___call_hash", "___cleanup", "___cmp_D2A", "___collate_equiv_match", |
| "___collate_load_error", "___collate_lookup", "___collate_lookup_l", |
| "___copybits_D2A", "___cxa_atexit", "___cxa_finalize", |
| "___cxa_finalize_ranges", "___cxa_thread_atexit", "___d2b_D2A", |
| "___dbpanic", "___decrement_D2A", "___default_hash", "___default_utx", |
| "___delpair", "___diff_D2A", "___dtoa", "___expand_table", |
| "___fflush", "___fgetwc", "___find_bigpair", "___find_last_page", |
| "___fix_locale_grouping_str", "___fread", "___free_ovflpage", |
| "___freedtoa", "___gdtoa", "___gdtoa_locks", "___get_buf", |
| "___get_page", "___gethex_D2A", "___getonlyClocaleconv", |
| "___hash_open", "___hdtoa", "___hexdig_D2A", "___hexdig_init_D2A", |
| "___hexnan_D2A", "___hi0bits_D2A", "___hldtoa", "___i2b_D2A", |
| "___ibitmap", "___increment_D2A", "___isctype", "___istype", |
| "___istype_l", "___ldtoa", "___libc_init", "___lo0bits_D2A", |
| "___log2", "___lshift_D2A", "___maskrune", "___maskrune_l", |
| "___match_D2A", "___mb_cur_max", "___mb_sb_limit", "___memccpy_chk", |
| "___memcpy_chk", "___memmove_chk", "___memset_chk", "___mult_D2A", |
| "___multadd_D2A", "___nrv_alloc_D2A", "___opendir2", "___ovfl_delete", |
| "___ovfl_get", "___ovfl_put", "___pow5mult_D2A", "___put_page", |
| "___quorem_D2A", "___ratio_D2A", "___rec_close", "___rec_delete", |
| "___rec_dleaf", "___rec_fd", "___rec_fmap", "___rec_fpipe", |
| "___rec_get", "___rec_iput", "___rec_open", "___rec_put", |
| "___rec_ret", "___rec_search", "___rec_seq", "___rec_sync", |
| "___rec_vmap", "___rec_vpipe", "___reclaim_buf", "___rshift_D2A", |
| "___rv_alloc_D2A", "___s2b_D2A", "___sF", "___sclose", "___sdidinit", |
| "___set_ones_D2A", "___setonlyClocaleconv", "___sflags", "___sflush", |
| "___sfp", "___sfvwrite", "___sglue", "___sinit", "___slbexpand", |
| "___smakebuf", "___snprintf_chk", "___snprintf_object_size_chk", |
| "___split_page", "___sprintf_chk", "___sprintf_object_size_chk", |
| "___sread", "___srefill", "___srget", "___sseek", "___stack_chk_fail", |
| "___stack_chk_guard", "___stderrp", "___stdinp", "___stdoutp", |
| "___stpcpy_chk", "___stpncpy_chk", "___strcat_chk", "___strcp_D2A", |
| "___strcpy_chk", "___strlcat_chk", "___strlcpy_chk", "___strncat_chk", |
| "___strncpy_chk", "___strtodg", "___strtopdd", "___sum_D2A", |
| "___svfscanf", "___swbuf", "___swhatbuf", "___swrite", "___swsetup", |
| "___tens_D2A", "___tinytens_D2A", "___tolower", "___tolower_l", |
| "___toupper", "___toupper_l", "___trailz_D2A", "___ulp_D2A", |
| "___ungetc", "___ungetwc", "___vsnprintf_chk", "___vsprintf_chk", |
| "___wcwidth", "___wcwidth_l", "__allocenvstate", "__atexit_receipt", |
| "__c_locale", "__cleanup", "__closeutx", "__copyenv", |
| "__cthread_init_routine", "__deallocenvstate", "__endutxent", |
| "__flockfile_debug_stub", "__fseeko", "__ftello", "__fwalk", |
| "__getenvp", "__getutxent", "__getutxid", "__getutxline", |
| "__inet_aton_check", "__init_clock_port", "__int_to_time", |
| "__libc_fork_child", "__libc_initializer", "__long_to_time", |
| "__mkpath_np", "__mktemp", "__openutx", "__os_assert_log", |
| "__os_assert_log_ctx", "__os_assumes_log", "__os_assumes_log_ctx", |
| "__os_avoid_tail_call", "__os_crash", "__os_crash_callback", |
| "__os_crash_fmt", "__os_debug_log", "__os_debug_log_error_str", |
| "__putenvp", "__pututxline", "__rand48_add", "__rand48_mult", |
| "__rand48_seed", "__readdir_unlocked", "__reclaim_telldir", |
| "__seekdir", "__setenvp", "__setutxent", "__sigaction_nobind", |
| "__sigintr", "__signal_nobind", "__sigvec_nobind", "__sread", |
| "__sseek", "__subsystem_init", "__swrite", "__time32_to_time", |
| "__time64_to_time", "__time_to_int", "__time_to_long", |
| "__time_to_time32", "__time_to_time64", "__unsetenvp", "__utmpxname", |
| "_a64l", "_abort", "_abort_report_np", "_abs", "_acl_add_flag_np", |
| "_acl_add_perm", "_acl_calc_mask", "_acl_clear_flags_np", |
| "_acl_clear_perms", "_acl_copy_entry", "_acl_copy_ext", |
| "_acl_copy_ext_native", "_acl_copy_int", "_acl_copy_int_native", |
| "_acl_create_entry", "_acl_create_entry_np", "_acl_delete_def_file", |
| "_acl_delete_entry", "_acl_delete_fd_np", "_acl_delete_file_np", |
| "_acl_delete_flag_np", "_acl_delete_link_np", "_acl_delete_perm", |
| "_acl_dup", "_acl_free", "_acl_from_text", "_acl_get_entry", |
| "_acl_get_fd", "_acl_get_fd_np", "_acl_get_file", "_acl_get_flag_np", |
| "_acl_get_flagset_np", "_acl_get_link_np", "_acl_get_perm_np", |
| "_acl_get_permset", "_acl_get_permset_mask_np", "_acl_get_qualifier", |
| "_acl_get_tag_type", "_acl_init", "_acl_maximal_permset_mask_np", |
| "_acl_set_fd", "_acl_set_fd_np", "_acl_set_file", "_acl_set_flagset_np", |
| "_acl_set_link_np", "_acl_set_permset", "_acl_set_permset_mask_np", |
| "_acl_set_qualifier", "_acl_set_tag_type", "_acl_size", "_acl_to_text", |
| "_acl_valid", "_acl_valid_fd_np", "_acl_valid_file_np", |
| "_acl_valid_link", "_addr2ascii", "_alarm", "_alphasort", |
| "_arc4random", "_arc4random_addrandom", "_arc4random_buf", |
| "_arc4random_stir", "_arc4random_uniform", "_ascii2addr", "_asctime", |
| "_asctime_r", "_asprintf", "_asprintf_l", "_asxprintf", |
| "_asxprintf_exec", "_atexit", "_atexit_b", "_atof", "_atof_l", |
| "_atoi", "_atoi_l", "_atol", "_atol_l", "_atoll", "_atoll_l", |
| "_backtrace", "_backtrace_from_fp", "_backtrace_image_offsets", |
| "_backtrace_symbols", "_backtrace_symbols_fd", "_basename", |
| "_basename_r", "_bcopy", "_brk", "_bsd_signal", "_bsearch", |
| "_bsearch_b", "_btowc", "_btowc_l", "_catclose", "_catgets", |
| "_catopen", "_cfgetispeed", "_cfgetospeed", "_cfmakeraw", |
| "_cfsetispeed", "_cfsetospeed", "_cfsetspeed", "_cgetcap", |
| "_cgetclose", "_cgetent", "_cgetfirst", "_cgetmatch", "_cgetnext", |
| "_cgetnum", "_cgetset", "_cgetstr", "_cgetustr", "_chmodx_np", |
| "_clearerr", "_clearerr_unlocked", "_clock", "_clock_getres", |
| "_clock_gettime", "_clock_gettime_nsec_np", "_clock_port", |
| "_clock_sem", "_clock_settime", "_closedir", "_compat_mode", |
| "_confstr", "_copy_printf_domain", "_creat", "_crypt", "_ctermid", |
| "_ctermid_r", "_ctime", "_ctime_r", "_daemon", "_daylight", |
| "_dbm_clearerr", "_dbm_close", "_dbm_delete", "_dbm_dirfno", |
| "_dbm_error", "_dbm_fetch", "_dbm_firstkey", "_dbm_nextkey", |
| "_dbm_open", "_dbm_store", "_dbopen", "_devname", "_devname_r", |
| "_difftime", "_digittoint", "_digittoint_l", "_dirfd", "_dirname", |
| "_dirname_r", "_div", "_dprintf", "_dprintf_l", "_drand48", |
| "_duplocale", "_dxprintf", "_dxprintf_exec", "_ecvt", "_encrypt", |
| "_endttyent", "_endusershell", "_endutxent", "_endutxent_wtmp", |
| "_erand48", "_err", "_err_set_exit", "_err_set_exit_b", |
| "_err_set_file", "_errc", "_errx", "_execl", "_execle", "_execlp", |
| "_execv", "_execvP", "_execvp", "_exit", "_f_prealloc", "_fchmodx_np", |
| "_fclose", "_fcvt", "_fdopen", "_fdopendir", "_feof", "_feof_unlocked", |
| "_ferror", "_ferror_unlocked", "_fflagstostr", "_fflush", "_fgetc", |
| "_fgetln", "_fgetpos", "_fgetrune", "_fgets", "_fgetwc", "_fgetwc_l", |
| "_fgetwln", "_fgetwln_l", "_fgetws", "_fgetws_l", "_fileno", |
| "_fileno_unlocked", "_filesec_dup", "_filesec_free", |
| "_filesec_get_property", "_filesec_init", "_filesec_query_property", |
| "_filesec_set_property", "_filesec_unset_property", "_flockfile", |
| "_fmemopen", "_fmtcheck", "_fmtmsg", "_fnmatch", "_fopen", "_fork", |
| "_forkpty", "_fparseln", "_fprintf", "_fprintf_l", "_fpurge", |
| "_fputc", "_fputrune", "_fputs", "_fputwc", "_fputwc_l", "_fputws", |
| "_fputws_l", "_fread", "_free_printf_comp", "_free_printf_domain", |
| "_freelocale", "_freopen", "_fscanf", "_fscanf_l", "_fseek", |
| "_fseeko", "_fsetpos", "_fstatvfs", "_fstatx_np", "_fsync_volume_np", |
| "_ftell", "_ftello", "_ftime", "_ftok", "_ftrylockfile", |
| "_fts_children", "_fts_close", "_fts_open", "_fts_open_b", |
| "_fts_read", "_fts_set", "_ftw", "_fungetrune", "_funlockfile", |
| "_funopen", "_fwide", "_fwprintf", "_fwprintf_l", "_fwrite", |
| "_fwscanf", "_fwscanf_l", "_fxprintf", "_fxprintf_exec", "_gcvt", |
| "_getbsize", "_getc", "_getc_unlocked", "_getchar", "_getchar_unlocked", |
| "_getcwd", "_getdate", "_getdate_err", "_getdelim", "_getdiskbyname", |
| "_getenv", "_gethostid", "_gethostname", "_getipv4sourcefilter", |
| "_getlastlogx", "_getlastlogxbyname", "_getline", "_getloadavg", |
| "_getlogin", "_getlogin_r", "_getmntinfo", "_getmntinfo_r_np", |
| "_getmode", "_getopt", "_getopt_long", "_getopt_long_only", |
| "_getpagesize", "_getpass", "_getpeereid", "_getprogname", "_gets", |
| "_getsourcefilter", "_getsubopt", "_gettimeofday", "_getttyent", |
| "_getttynam", "_getusershell", "_getutmp", "_getutmpx", "_getutxent", |
| "_getutxent_wtmp", "_getutxid", "_getutxline", "_getvfsbyname", |
| "_getw", "_getwc", "_getwc_l", "_getwchar", "_getwchar_l", "_getwd", |
| "_glob", "_glob_b", "_globfree", "_gmtime", "_gmtime_r", "_grantpt", |
| "_hash_create", "_hash_destroy", "_hash_purge", "_hash_search", |
| "_hash_stats", "_hash_traverse", "_hcreate", "_hdestroy", |
| "_heapsort", "_heapsort_b", "_hsearch", "_imaxabs", "_imaxdiv", |
| "_inet_addr", "_inet_aton", "_inet_lnaof", "_inet_makeaddr", |
| "_inet_net_ntop", "_inet_net_pton", "_inet_neta", "_inet_netof", |
| "_inet_network", "_inet_nsap_addr", "_inet_nsap_ntoa", "_inet_ntoa", |
| "_inet_ntop", "_inet_ntop4", "_inet_ntop6", "_inet_pton", |
| "_initstate", "_insque", "_isalnum", "_isalnum_l", "_isalpha", |
| "_isalpha_l", "_isascii", "_isatty", "_isblank", "_isblank_l", |
| "_iscntrl", "_iscntrl_l", "_isdigit", "_isdigit_l", "_isgraph", |
| "_isgraph_l", "_ishexnumber", "_ishexnumber_l", "_isideogram", |
| "_isideogram_l", "_islower", "_islower_l", "_isnumber", "_isnumber_l", |
| "_isphonogram", "_isphonogram_l", "_isprint", "_isprint_l", |
| "_ispunct", "_ispunct_l", "_isrune", "_isrune_l", "_isspace", |
| "_isspace_l", "_isspecial", "_isspecial_l", "_isupper", "_isupper_l", |
| "_iswalnum", "_iswalnum_l", "_iswalpha", "_iswalpha_l", "_iswascii", |
| "_iswblank", "_iswblank_l", "_iswcntrl", "_iswcntrl_l", "_iswctype", |
| "_iswctype_l", "_iswdigit", "_iswdigit_l", "_iswgraph", "_iswgraph_l", |
| "_iswhexnumber", "_iswhexnumber_l", "_iswideogram", "_iswideogram_l", |
| "_iswlower", "_iswlower_l", "_iswnumber", "_iswnumber_l", |
| "_iswphonogram", "_iswphonogram_l", "_iswprint", "_iswprint_l", |
| "_iswpunct", "_iswpunct_l", "_iswrune", "_iswrune_l", "_iswspace", |
| "_iswspace_l", "_iswspecial", "_iswspecial_l", "_iswupper", |
| "_iswupper_l", "_iswxdigit", "_iswxdigit_l", "_isxdigit", |
| "_isxdigit_l", "_jrand48", "_kOSThermalNotificationPressureLevelName", |
| "_killpg", "_l64a", "_labs", "_lchflags", "_lchmod", "_lcong48", |
| "_ldiv", "_lfind", "_link_addr", "_link_ntoa", "_llabs", "_lldiv", |
| "_localeconv", "_localeconv_l", "_localtime", "_localtime_r", |
| "_lockf", "_login", "_login_tty", "_logout", "_logwtmp", "_lrand48", |
| "_lsearch", "_lstatx_np", "_lutimes", "_mblen", "_mblen_l", |
| "_mbmb", "_mbrlen", "_mbrlen_l", "_mbrrune", "_mbrtowc", "_mbrtowc_l", |
| "_mbrune", "_mbsinit", "_mbsinit_l", "_mbsnrtowcs", "_mbsnrtowcs_l", |
| "_mbsrtowcs", "_mbsrtowcs_l", "_mbstowcs", "_mbstowcs_l", "_mbtowc", |
| "_mbtowc_l", "_memmem", "_memset_s", "_mergesort", "_mergesort_b", |
| "_mkdirx_np", "_mkdtemp", "_mkdtempat_np", "_mkfifox_np", |
| "_mkostemp", "_mkostemps", "_mkostempsat_np", "_mkpath_np", |
| "_mkpathat_np", "_mkstemp", "_mkstemp_dprotected_np", "_mkstemps", |
| "_mkstempsat_np", "_mktemp", "_mktime", "_monaddition", "_moncontrol", |
| "_moncount", "_moninit", "_monitor", "_monoutput", "_monreset", |
| "_monstartup", "_mpool_close", "_mpool_filter", "_mpool_get", |
| "_mpool_new", "_mpool_open", "_mpool_put", "_mpool_sync", "_mrand48", |
| "_nanosleep", "_new_printf_comp", "_new_printf_domain", "_newlocale", |
| "_nextwctype", "_nextwctype_l", "_nftw", "_nice", "_nl_langinfo", |
| "_nl_langinfo_l", "_nrand48", "_nvis", "_off32", "_off64", |
| "_offtime", "_open_memstream", "_open_with_subsystem", |
| "_open_wmemstream", "_opendev", "_opendir", "_openpty", "_openx_np", |
| "_optarg", "_opterr", "_optind", "_optopt", "_optreset", "_pause", |
| "_pclose", "_perror", "_popen", "_posix2time", "_posix_openpt", |
| "_posix_spawnp", "_printf", "_printf_l", "_psignal", "_psort", |
| "_psort_b", "_psort_r", "_ptsname", "_ptsname_r", "_putc", |
| "_putc_unlocked", "_putchar", "_putchar_unlocked", "_putenv", |
| "_puts", "_pututxline", "_putw", "_putwc", "_putwc_l", "_putwchar", |
| "_putwchar_l", "_qsort", "_qsort_b", "_qsort_r", "_querylocale", |
| "_radixsort", "_raise", "_rand", "_rand_r", "_random", "_rb_tree_count", |
| "_rb_tree_find_node", "_rb_tree_find_node_geq", "_rb_tree_find_node_leq", |
| "_rb_tree_init", "_rb_tree_insert_node", "_rb_tree_iterate", |
| "_rb_tree_remove_node", "_readdir", "_readdir_r", "_readpassphrase", |
| "_reallocf", "_realpath", "_recv", "_regcomp", "_regcomp_l", |
| "_regerror", "_regexec", "_regfree", "_register_printf_domain_function", |
| "_register_printf_domain_render_std", "_regncomp", "_regncomp_l", |
| "_regnexec", "_regwcomp", "_regwcomp_l", "_regwexec", "_regwncomp", |
| "_regwncomp_l", "_regwnexec", "_remove", "_remque", "_rewind", |
| "_rewinddir", "_rindex", "_rpmatch", "_sbrk", "_scandir", |
| "_scandir_b", "_scanf", "_scanf_l", "_seed48", "_seekdir", "_send", |
| "_setbuf", "_setbuffer", "_setenv", "_sethostid", "_sethostname", |
| "_setinvalidrune", "_setipv4sourcefilter", "_setkey", "_setlinebuf", |
| "_setlocale", "_setlogin", "_setmode", "_setpgrp", "_setprogname", |
| "_setrgid", "_setruid", "_setrunelocale", "_setsourcefilter", |
| "_setstate", "_settimeofday", "_setttyent", "_setusershell", |
| "_setutxent", "_setutxent_wtmp", "_setvbuf", "_sigaction", |
| "_sigaddset", "_sigaltstack", "_sigblock", "_sigdelset", |
| "_sigemptyset", "_sigfillset", "_sighold", "_sigignore", |
| "_siginterrupt", "_sigismember", "_signal", "_sigpause", "_sigrelse", |
| "_sigset", "_sigsetmask", "_sigvec", "_skip", "_sl_add", "_sl_find", |
| "_sl_free", "_sl_init", "_sleep", "_snprintf", "_snprintf_l", |
| "_snvis", "_sockatmark", "_sprintf", "_sprintf_l", "_sradixsort", |
| "_srand", "_srand48", "_sranddev", "_srandom", "_srandomdev", |
| "_sscanf", "_sscanf_l", "_stat_with_subsystem", "_statvfs", |
| "_statx_np", "_stpcpy", "_stpncpy", "_strcasecmp", "_strcasecmp_l", |
| "_strcasestr", "_strcasestr_l", "_strcat", "_strcoll", "_strcoll_l", |
| "_strcspn", "_strdup", "_strenvisx", "_strerror", "_strerror_r", |
| "_strfmon", "_strfmon_l", "_strftime", "_strftime_l", "_strmode", |
| "_strncasecmp", "_strncasecmp_l", "_strncat", "_strndup", "_strnstr", |
| "_strnunvis", "_strnunvisx", "_strnvis", "_strnvisx", "_strpbrk", |
| "_strptime", "_strptime_l", "_strrchr", "_strsenvisx", "_strsep", |
| "_strsignal", "_strsignal_r", "_strsnvis", "_strsnvisx", "_strspn", |
| "_strsvis", "_strsvisx", "_strtod", "_strtod_l", "_strtof", |
| "_strtof_l", "_strtofflags", "_strtoimax", "_strtoimax_l", |
| "_strtok", "_strtok_r", "_strtol", "_strtol_l", "_strtold", |
| "_strtold_l", "_strtoll", "_strtoll_l", "_strtonum", "_strtoq", |
| "_strtoq_l", "_strtoul", "_strtoul_l", "_strtoull", "_strtoull_l", |
| "_strtoumax", "_strtoumax_l", "_strtouq", "_strtouq_l", "_strunvis", |
| "_strunvisx", "_strvis", "_strvisx", "_strxfrm", "_strxfrm_l", |
| "_suboptarg", "_svis", "_swab", "_swprintf", "_swprintf_l", |
| "_swscanf", "_swscanf_l", "_sxprintf", "_sxprintf_exec", |
| "_sync_volume_np", "_sys_errlist", "_sys_nerr", "_sys_siglist", |
| "_sys_signame", "_sysconf", "_sysctl", "_sysctlbyname", |
| "_sysctlnametomib", "_system", "_tcdrain", "_tcflow", "_tcflush", |
| "_tcgetattr", "_tcgetpgrp", "_tcgetsid", "_tcsendbreak", "_tcsetattr", |
| "_tcsetpgrp", "_tdelete", "_telldir", "_tempnam", "_tfind", |
| "_thread_stack_pcs", "_time", "_time2posix", "_timegm", "_timelocal", |
| "_timeoff", "_times", "_timespec_get", "_timezone", "_timingsafe_bcmp", |
| "_tmpfile", "_tmpnam", "_toascii", "_tolower", "_tolower_l", |
| "_toupper", "_toupper_l", "_towctrans", "_towctrans_l", "_towlower", |
| "_towlower_l", "_towupper", "_towupper_l", "_tre_ast_new_catenation", |
| "_tre_ast_new_iter", "_tre_ast_new_literal", "_tre_ast_new_node", |
| "_tre_ast_new_union", "_tre_compile", "_tre_fill_pmatch", |
| "_tre_free", "_tre_mem_alloc_impl", "_tre_mem_destroy", |
| "_tre_mem_new_impl", "_tre_parse", "_tre_stack_destroy", |
| "_tre_stack_new", "_tre_stack_num_objects", "_tre_tnfa_run_backtrack", |
| "_tre_tnfa_run_parallel", "_tsearch", "_ttyname", "_ttyname_r", |
| "_ttyslot", "_twalk", "_tzname", "_tzset", "_tzsetwall", "_ualarm", |
| "_ulimit", "_umaskx_np", "_uname", "_ungetc", "_ungetwc", |
| "_ungetwc_l", "_unlockpt", "_unsetenv", "_unvis", "_uselocale", |
| "_usleep", "_utime", "_utmpxname", "_uuid_clear", "_uuid_compare", |
| "_uuid_copy", "_uuid_generate", "_uuid_generate_random", |
| "_uuid_generate_time", "_uuid_is_null", "_uuid_pack", "_uuid_parse", |
| "_uuid_unpack", "_uuid_unparse", "_uuid_unparse_lower", |
| "_uuid_unparse_upper", "_vasprintf", "_vasprintf_l", "_vasxprintf", |
| "_vasxprintf_exec", "_vdprintf", "_vdprintf_l", "_vdxprintf", |
| "_vdxprintf_exec", "_verr", "_verrc", "_verrx", "_vfprintf", |
| "_vfprintf_l", "_vfscanf", "_vfscanf_l", "_vfwprintf", "_vfwprintf_l", |
| "_vfwscanf", "_vfwscanf_l", "_vfxprintf", "_vfxprintf_exec", |
| "_vis", "_vprintf", "_vprintf_l", "_vscanf", "_vscanf_l", |
| "_vsnprintf", "_vsnprintf_l", "_vsprintf", "_vsprintf_l", "_vsscanf", |
| "_vsscanf_l", "_vswprintf", "_vswprintf_l", "_vswscanf", |
| "_vswscanf_l", "_vsxprintf", "_vsxprintf_exec", "_vwarn", "_vwarnc", |
| "_vwarnx", "_vwprintf", "_vwprintf_l", "_vwscanf", "_vwscanf_l", |
| "_vxprintf", "_vxprintf_exec", "_wait", "_wait3", "_waitpid", |
| "_warn", "_warnc", "_warnx", "_wcpcpy", "_wcpncpy", "_wcrtomb", |
| "_wcrtomb_l", "_wcscasecmp", "_wcscasecmp_l", "_wcscat", "_wcschr", |
| "_wcscmp", "_wcscoll", "_wcscoll_l", "_wcscpy", "_wcscspn", |
| "_wcsdup", "_wcsftime", "_wcsftime_l", "_wcslcat", "_wcslcpy", |
| "_wcslen", "_wcsncasecmp", "_wcsncasecmp_l", "_wcsncat", "_wcsncmp", |
| "_wcsncpy", "_wcsnlen", "_wcsnrtombs", "_wcsnrtombs_l", "_wcspbrk", |
| "_wcsrchr", "_wcsrtombs", "_wcsrtombs_l", "_wcsspn", "_wcsstr", |
| "_wcstod", "_wcstod_l", "_wcstof", "_wcstof_l", "_wcstoimax", |
| "_wcstoimax_l", "_wcstok", "_wcstol", "_wcstol_l", "_wcstold", |
| "_wcstold_l", "_wcstoll", "_wcstoll_l", "_wcstombs", "_wcstombs_l", |
| "_wcstoul", "_wcstoul_l", "_wcstoull", "_wcstoull_l", "_wcstoumax", |
| "_wcstoumax_l", "_wcswidth", "_wcswidth_l", "_wcsxfrm", "_wcsxfrm_l", |
| "_wctob", "_wctob_l", "_wctomb", "_wctomb_l", "_wctrans", |
| "_wctrans_l", "_wctype", "_wctype_l", "_wcwidth", "_wcwidth_l", |
| "_wmemchr", "_wmemcmp", "_wmemcpy", "_wmemmove", "_wmemset", |
| "_wordexp", "_wordfree", "_wprintf", "_wprintf_l", "_wscanf", |
| "_wscanf_l", "_wtmpxname", "_xprintf", "_xprintf_exec" |
| ) |
| |
| def print_here_head(name): |
| print("""\ |
| (tee %s.s |llvm-mc -filetype=obj -triple %s -o %s.o) <<END_OF_FILE &""" % (name, triple, name)) |
| |
| def print_here_tail(): |
| print("""\ |
| END_OF_FILE |
| """) |
| |
| def print_function_head(p2align, name): |
| if args.os == "macos": |
| print("""\ |
| .section __TEXT,__text,regular,pure_instructions |
| .p2align %d, 0x90 |
| .globl _%s |
| _%s:""" % (p2align, name, name)) |
| elif args.os == "windows": |
| print("""\ |
| .text |
| .def %s; |
| .scl 2; |
| .type 32; |
| .endef |
| .globl %s |
| .p2align %d |
| %s:""" % (name, name, p2align, name)) |
| elif args.os == "linux": |
| print("""\ |
| .text |
| .p2align %d |
| .globl %s |
| %s:""" % (p2align, name, name)) |
| |
| def print_function(addr, size, addrs): |
| name = "x%08x" % addr |
| calls = random.randint(0, size>>12) |
| print_here_head(name) |
| print("""\ |
| ### %s size=%x calls=%x""" % (name, size, calls)) |
| print_function_head(4, name) |
| for i in range(calls): |
| print(" bl %sx%08x\n .p2align 4" % |
| ("_" if args.os == "macos" else "", |
| addrs[random.randint(0, len(addrs)-1)])) |
| if args.os == "macos": |
| print(" bl %s\n .p2align 4" % |
| (libSystem_calls[random.randint(0, len(libSystem_calls)-1)])) |
| fill = size - 4 * (calls + 1) |
| assert fill > 0 |
| print("""\ |
| .fill 0x%x |
| ret""" % (fill)) |
| print_here_tail() |
| |
| def random_seed(): |
| """Generate a seed that can easily be passsed back in via --seed=STRING""" |
| return ''.join(random.choice(string.ascii_lowercase) for i in range(10)) |
| |
| def generate_sizes(base, megabytes): |
| total = 0 |
| while total < megabytes: |
| size = random.randint(0x100, 0x10000) * 0x10 |
| yield size |
| total += size |
| |
| def generate_addrs(addr, sizes): |
| i = 0 |
| while i < len(sizes): |
| yield addr |
| addr += sizes[i] |
| i += 1 |
| |
| def main(): |
| parser = argparse.ArgumentParser( |
| description=__doc__, |
| epilog="""\ |
| WRITEME |
| """) |
| parser.add_argument('--seed', type=str, default=random_seed(), |
| help='Seed the random number generator') |
| parser.add_argument('--size', type=int, default=None, |
| help='Total text size to generate, in megabytes') |
| parser.add_argument('--os', type=str, default="macos", |
| help='Target OS: macos, windows, or linux') |
| global args |
| args = parser.parse_args() |
| triples = { |
| "macos": "arm64-apple-macos", |
| "linux": "aarch64-pc-linux", |
| "windows": "aarch64-pc-windows" |
| } |
| global triple |
| triple = triples.get(args.os) |
| |
| print("""\ |
| ### seed=%s triple=%s |
| """ % (args.seed, triple)) |
| |
| random.seed(args.seed) |
| |
| base = 0x4010 |
| megabytes = (int(args.size) if args.size else 512) * 1024 * 1024 |
| sizes = [size for size in generate_sizes(base, megabytes)] |
| addrs = [addr for addr in generate_addrs(base, sizes)] |
| |
| for i in range(len(addrs)): |
| print_function(addrs[i], sizes[i], addrs) |
| |
| print_here_head("main") |
| print("""\ |
| ### _x%08x |
| """ % (addrs[-1] + sizes[-1])) |
| print_function_head(14 if args.os == "macos" else 4, "main") |
| print(" ret") |
| print_here_tail() |
| print("wait") |
| |
| |
| if __name__ == '__main__': |
| main() |
