ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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static char *expand_string(const char *in); static void __attribute__((noreturn)) pperror(const char *format, ...) { va_list ap; fprintf(stderr, "%s:%d: ", current_file->name, yylineno); va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); fprintf(stderr, "\n"); exit(1); } /* * Environment variables */ static LIST_HEAD(env_list); struct env { char *name; char *value; struct list_head node; }; static void env_add(const char *name, const char *value) { struct env *e; e = xmalloc(sizeof(*e)); e->name = xstrdup(name); e->value = xstrdup(value); list_add_tail(&e->node, &env_list); } static void env_del(struct env *e) { list_del(&e->node); free(e->name); free(e->value); free(e); } /* The returned pointer must be freed when done */ static char *env_expand(const char *name) { struct env *e; const char *value; if (!*name) return NULL; list_for_each_entry(e, &env_list, node) { if (!strcmp(name, e->name)) return xstrdup(e->value); } value = getenv(name); if (!value) return NULL; /* * We need to remember all referenced environment variables. * They will be written out to include/config/auto.conf.cmd */ env_add(name, value); return xstrdup(value); } void env_write_dep(FILE *f, const char *autoconfig_name) { struct env *e, *tmp; list_for_each_entry_safe(e, tmp, &env_list, node) { fprintf(f, "ifneq \"$(%s)\" \"%s\"\n", e->name, e->value); fprintf(f, "%s: FORCE\n", autoconfig_name); fprintf(f, "endif\n"); env_del(e); } } /* * Built-in functions */ struct function { const char *name; unsigned int min_args; unsigned int max_args; char *(*func)(int argc, char *argv[]); }; static char *do_error_if(int argc, char *argv[]) { if (!strcmp(argv[0], "y")) pperror("%s", argv[1]); return xstrdup(""); } static char *do_filename(int argc, char *argv[]) { return xstrdup(current_file->name); } static char *do_info(int argc, char *argv[]) { printf("%s\n", argv[0]); return xstrdup(""); } static char *do_lineno(int argc, char *argv[]) { char buf[16]; sprintf(buf, "%d", yylineno); return xstrdup(buf); } static char *do_shell(int argc, char *argv[]) { FILE *p; char buf[4096]; char *cmd; size_t nread; int i; cmd = argv[0]; p = popen(cmd, "r"); if (!p) { perror(cmd); exit(1); } nread = fread(buf, 1, sizeof(buf), p); if (nread == sizeof(buf)) nread--; /* remove trailing new lines */ while (nread > 0 && buf[nread - 1] == '\n') nread--; buf[nread] = 0; /* replace a new line with a space */ for (i = 0; i < nread; i++) { if (buf[i] == '\n') buf[i] = ' '; } if (pclose(p) == -1) { perror(cmd); exit(1); } return xstrdup(buf); } static char *do_warning_if(int argc, char *argv[]) { if (!strcmp(argv[0], "y")) fprintf(stderr, "%s:%d: %s\n", current_file->name, yylineno, argv[1]); return xstrdup(""); } static const struct function function_table[] = { /* Name MIN MAX Function */ { "error-if", 2, 2, do_error_if }, { "filename", 0, 0, do_filename }, { "info", 1, 1, do_info }, { "lineno", 0, 0, do_lineno }, { "shell", 1, 1, do_shell }, { "warning-if", 2, 2, do_warning_if }, }; #define FUNCTION_MAX_ARGS 16 static char *function_expand(const char *name, int argc, char *argv[]) { const struct function *f; int i; for (i = 0; i < ARRAY_SIZE(function_table); i++) { f = &function_table[i]; if (strcmp(f->name, name)) continue; if (argc < f->min_args) pperror("too few function arguments passed to '%s'", name); if (argc > f->max_args) pperror("too many function arguments passed to '%s'", name); return f->func(argc, argv); } return NULL; } /* * Variables (and user-defined functions) */ static LIST_HEAD(variable_list); struct variable { char *name; char *value; enum variable_flavor flavor; int exp_count; struct list_head node; }; static struct variable *variable_lookup(const char *name) { struct variable *v; list_for_each_entry(v, &variable_list, node) { if (!strcmp(name, v->name)) return v; } return NULL; } static char *variable_expand(const char *name, int argc, char *argv[]) { struct variable *v; char *res; v = variable_lookup(name); if (!v) return NULL; if (argc == 0 && v->exp_count) pperror("Recursive variable '%s' references itself (eventually)", name); if (v->exp_count > 1000) pperror("Too deep recursive expansion"); v->exp_count++; if (v->flavor == VAR_RECURSIVE) res = expand_string_with_args(v->value, argc, argv); else res = xstrdup(v->value); v->exp_count--; return res; } void variable_add(const char *name, const char *value, enum variable_flavor flavor) { struct variable *v; char *new_value; bool append = false; v = variable_lookup(name); if (v) { /* For defined variables, += inherits the existing flavor */ if (flavor == VAR_APPEND) { flavor = v->flavor; append = true; } else { free(v->value); } } else { /* For undefined variables, += assumes the recursive flavor */ if (flavor == VAR_APPEND) flavor = VAR_RECURSIVE; v = xmalloc(sizeof(*v)); v->name = xstrdup(name); v->exp_count = 0; list_add_tail(&v->node, &variable_list); } v->flavor = flavor; if (flavor == VAR_SIMPLE) new_value = expand_string(value); else new_value = xstrdup(value); if (append) { v->value = xrealloc(v->value, strlen(v->value) + strlen(new_value) + 2); strcat(v->value, " "); strcat(v->value, new_value); free(new_value); } else { v->value = new_value; } } static void variable_del(struct variable *v) { list_del(&v->node); free(v->name); free(v->value); free(v); } void variable_all_del(void) { struct variable *v, *tmp; list_for_each_entry_safe(v, tmp, &variable_list, node) variable_del(v); } /* * Evaluate a clause with arguments. argc/argv are arguments from the upper * function call. * * Returned string must be freed when done */ static char *eval_clause(const char *str, size_t len, int argc, char *argv[]) { char *tmp, *name, *res, *endptr, *prev, *p; int new_argc = 0; char *new_argv[FUNCTION_MAX_ARGS]; int nest = 0; int i; unsigned long n; tmp = xstrndup(str, len); /* * If variable name is '1', '2', etc. It is generally an argument * from a user-function call (i.e. local-scope variable). If not * available, then look-up global-scope variables. */ n = strtoul(tmp, &endptr, 10); if (!*endptr && n > 0 && n <= argc) { res = xstrdup(argv[n - 1]); goto free_tmp; } prev = p = tmp; /* * Split into tokens * The function name and arguments are separated by a comma. * For example, if the function call is like this: * $(foo,$(x),$(y)) * * The input string for this helper should be: * foo,$(x),$(y) * * and split into: * new_argv[0] = 'foo' * new_argv[1] = '$(x)' * new_argv[2] = '$(y)' */ while (*p) { if (nest == 0 && *p == ',') { *p = 0; if (new_argc >= FUNCTION_MAX_ARGS) pperror("too many function arguments"); new_argv[new_argc++] = prev; prev = p + 1; } else if (*p == '(') { nest++; } else if (*p == ')') { nest--; } p++; } if (new_argc >= FUNCTION_MAX_ARGS) pperror("too many function arguments"); new_argv[new_argc++] = prev; /* * Shift arguments * new_argv[0] represents a function name or a variable name. Put it * into 'name', then shift the rest of the arguments. This simplifies * 'const' handling. */ name = expand_string_with_args(new_argv[0], argc, argv); new_argc--; for (i = 0; i < new_argc; i++) new_argv[i] = expand_string_with_args(new_argv[i + 1], argc, argv); /* Search for variables */ res = variable_expand(name, new_argc, new_argv); if (res) goto free; /* Look for built-in functions */ res = function_expand(name, new_argc, new_argv); if (res) goto free; /* Last, try environment variable */ if (new_argc == 0) { res = env_expand(name); if (res) goto free; } res = xstrdup(""); free: for (i = 0; i < new_argc; i++) free(new_argv[i]); free(name); free_tmp: free(tmp); return res; } /* * Expand a string that follows '$' * * For example, if the input string is * ($(FOO)$($(BAR)))$(BAZ) * this helper evaluates * $($(FOO)$($(BAR))) * and returns a new string containing the expansion (note that the string is * recursively expanded), also advancing 'str' to point to the next character * after the corresponding closing parenthesis, in this case, *str will be * $(BAR) */ static char *expand_dollar_with_args(const char **str, int argc, char *argv[]) { const char *p = *str; const char *q; int nest = 0; /* * In Kconfig, variable/function references always start with "$(". * Neither single-letter variables as in $A nor curly braces as in ${CC} * are supported. '$' not followed by '(' loses its special meaning. */ if (*p != '(') { *str = p; return xstrdup("$"); } p++; q = p; while (*q) { if (*q == '(') { nest++; } else if (*q == ')') { if (nest-- == 0) break; } q++; } if (!*q) pperror("unterminated reference to '%s': missing ')'", p); /* Advance 'str' to after the expanded initial portion of the string */ *str = q + 1; return eval_clause(p, q - p, argc, argv); } char *expand_dollar(const char **str) { return expand_dollar_with_args(str, 0, NULL); } static char *__expand_string(const char **str, bool (*is_end)(char c), int argc, char *argv[]) { const char *in, *p; char *expansion, *out; size_t in_len, out_len; out = xmalloc(1); *out = 0; out_len = 1; p = in = *str; while (1) { if (*p == '$') { in_len = p - in; p++; expansion = expand_dollar_with_args(&p, argc, argv); out_len += in_len + strlen(expansion); out = xrealloc(out, out_len); strncat(out, in, in_len); strcat(out, expansion); free(expansion); in = p; continue; } if (is_end(*p)) break; p++; } in_len = p - in; out_len += in_len; out = xrealloc(out, out_len); strncat(out, in, in_len); /* Advance 'str' to the end character */ *str = p; return out; } static bool is_end_of_str(char c) { return !c; } /* * Expand variables and functions in the given string. Undefined variables * expand to an empty string. * The returned string must be freed when done. */ static char *expand_string_with_args(const char *in, int argc, char *argv[]) { return __expand_string(&in, is_end_of_str, argc, argv); } static char *expand_string(const char *in) { return expand_string_with_args(in, 0, NULL); } static bool is_end_of_token(char c) { return !(isalnum(c) || c == '_' || c == '-'); } /* * Expand variables in a token. The parsing stops when a token separater * (in most cases, it is a whitespace) is encountered. 'str' is updated to * point to the next character. * * The returned string must be freed when done. */ char *expand_one_token(const char **str) { return __expand_string(str, is_end_of_token, 0, NULL); }