--- zzzz-none-000/linux-2.6.39.4/scripts/kconfig/confdata.c 2011-08-03 19:43:28.000000000 +0000 +++ puma6-arm-6490-729/linux-2.6.39.4/scripts/kconfig/confdata.c 2021-11-10 13:23:11.000000000 +0000 @@ -7,13 +7,13 @@ #include #include #include +#include #include #include #include #include #include -#define LKC_DIRECT_LINK #include "lkc.h" static void conf_warning(const char *fmt, ...) @@ -128,6 +128,7 @@ sym->flags |= def_flags; break; } + /* fall through */ case S_BOOLEAN: if (p[0] == 'y') { sym->def[def].tri = yes; @@ -140,7 +141,7 @@ break; } conf_warning("symbol value '%s' invalid for %s", p, sym->name); - break; + return 1; case S_OTHER: if (*p != '"') { for (p2 = p; *p2 && !isspace(*p2); p2++) @@ -148,6 +149,7 @@ sym->type = S_STRING; goto done; } + /* fall through */ case S_STRING: if (*p++ != '"') break; @@ -162,6 +164,7 @@ conf_warning("invalid string found"); return 1; } + /* fall through */ case S_INT: case S_HEX: done: @@ -237,6 +240,7 @@ case S_STRING: if (sym->def[def].val) free(sym->def[def].val); + /* fall through */ default: sym->def[def].val = NULL; sym->def[def].tri = no; @@ -363,6 +367,7 @@ break; if (!sym_is_choice(sym)) goto sym_ok; + /* fall through */ default: if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) goto sym_ok; @@ -417,64 +422,202 @@ return 0; } -/* Write a S_STRING */ -static void conf_write_string(bool headerfile, const char *name, - const char *str, FILE *out) -{ - int l; - if (headerfile) - fprintf(out, "#define %s%s \"", CONFIG_, name); - else - fprintf(out, "%s%s=\"", CONFIG_, name); +/* + * Kconfig configuration printer + * + * This printer is used when generating the resulting configuration after + * kconfig invocation and `defconfig' files. Unset symbol might be omitted by + * passing a non-NULL argument to the printer. + * + */ +static void +kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) +{ + + switch (sym->type) { + case S_BOOLEAN: + case S_TRISTATE: + if (*value == 'n') { + bool skip_unset = (arg != NULL); + + if (!skip_unset) + fprintf(fp, "# %s%s is not set\n", + CONFIG_, sym->name); + return; + } + break; + default: + break; + } + + fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value); +} + +static void +kconfig_print_comment(FILE *fp, const char *value, void *arg) +{ + const char *p = value; + size_t l; - while (1) { - l = strcspn(str, "\"\\"); + for (;;) { + l = strcspn(p, "\n"); + fprintf(fp, "#"); if (l) { - xfwrite(str, l, 1, out); - str += l; + fprintf(fp, " "); + fwrite(p, l, 1, fp); + p += l; } - if (!*str) + fprintf(fp, "\n"); + if (*p++ == '\0') break; - fprintf(out, "\\%c", *str++); } - fputs("\"\n", out); } -static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no) +static struct conf_printer kconfig_printer_cb = +{ + .print_symbol = kconfig_print_symbol, + .print_comment = kconfig_print_comment, +}; + +/* + * Header printer + * + * This printer is used when generating the `include/generated/autoconf.h' file. + */ +static void +header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) { - const char *str; switch (sym->type) { case S_BOOLEAN: - case S_TRISTATE: - switch (sym_get_tristate_value(sym)) { - case no: - if (write_no) - fprintf(out, "# %s%s is not set\n", - CONFIG_, sym->name); - break; - case mod: - fprintf(out, "%s%s=m\n", CONFIG_, sym->name); - break; - case yes: - fprintf(out, "%s%s=y\n", CONFIG_, sym->name); + case S_TRISTATE: { + const char *suffix = ""; + + switch (*value) { + case 'n': break; + case 'm': + suffix = "_MODULE"; + /* fall through */ + default: + fprintf(fp, "#define %s%s%s 1\n", + CONFIG_, sym->name, suffix); } + /* + * Generate the __enabled_CONFIG_* and + * __enabled_CONFIG_*_MODULE macros for use by the + * IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is + * generated even for booleans so that the IS_ENABLED() macro + * works. + */ + fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n", + sym->name, (*value == 'y')); + fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n", + sym->name, (*value == 'm')); break; - case S_STRING: - conf_write_string(false, sym->name, sym_get_string_value(sym), out); + } + case S_HEX: { + const char *prefix = ""; + + if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) + prefix = "0x"; + fprintf(fp, "#define %s%s %s%s\n", + CONFIG_, sym->name, prefix, value); break; - case S_HEX: + } + case S_STRING: case S_INT: - str = sym_get_string_value(sym); - fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str); + fprintf(fp, "#define %s%s %s\n", + CONFIG_, sym->name, value); break; + default: + break; + } + +} + +static void +header_print_comment(FILE *fp, const char *value, void *arg) +{ + const char *p = value; + size_t l; + + fprintf(fp, "/*\n"); + for (;;) { + l = strcspn(p, "\n"); + fprintf(fp, " *"); + if (l) { + fprintf(fp, " "); + fwrite(p, l, 1, fp); + p += l; + } + fprintf(fp, "\n"); + if (*p++ == '\0') + break; + } + fprintf(fp, " */\n"); +} + +static struct conf_printer header_printer_cb = +{ + .print_symbol = header_print_symbol, + .print_comment = header_print_comment, +}; + +/* + * Tristate printer + * + * This printer is used when generating the `include/config/tristate.conf' file. + */ +static void +tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg) +{ + + if (sym->type == S_TRISTATE && *value != 'n') + fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value)); +} + +static struct conf_printer tristate_printer_cb = +{ + .print_symbol = tristate_print_symbol, + .print_comment = kconfig_print_comment, +}; + +static void conf_write_symbol(FILE *fp, struct symbol *sym, + struct conf_printer *printer, void *printer_arg) +{ + const char *str; + + switch (sym->type) { case S_OTHER: case S_UNKNOWN: break; + case S_STRING: + str = sym_get_string_value(sym); + str = sym_escape_string_value(str); + printer->print_symbol(fp, sym, str, printer_arg); + free((void *)str); + break; + default: + str = sym_get_string_value(sym); + printer->print_symbol(fp, sym, str, printer_arg); } } +static void +conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg) +{ + char buf[256]; + + snprintf(buf, sizeof(buf), + "\n" + "Automatically generated file; DO NOT EDIT.\n" + "%s\n", + rootmenu.prompt->text); + + printer->print_comment(fp, buf, printer_arg); +} + /* * Write out a minimal config. * All values that has default values are skipped as this is redundant. @@ -531,7 +674,7 @@ goto next_menu; } } - conf_write_symbol(sym, out, true); + conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); } next_menu: if (menu->list != NULL) { @@ -560,8 +703,6 @@ const char *basename; const char *str; char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1]; - time_t now; - int use_timestamp = 1; char *env; dirname[0] = 0; @@ -598,19 +739,7 @@ if (!out) return 1; - time(&now); - env = getenv("KCONFIG_NOTIMESTAMP"); - if (env && *env) - use_timestamp = 0; - - fprintf(out, _("#\n" - "# Automatically generated make config: don't edit\n" - "# %s\n" - "%s%s" - "#\n"), - rootmenu.prompt->text, - use_timestamp ? "# " : "", - use_timestamp ? ctime(&now) : ""); + conf_write_heading(out, &kconfig_printer_cb, NULL); if (!conf_get_changed()) sym_clear_all_valid(); @@ -631,8 +760,8 @@ if (!(sym->flags & SYMBOL_WRITE)) goto next; sym->flags &= ~SYMBOL_WRITE; - /* Write config symbol to file */ - conf_write_symbol(sym, out, true); + + conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); } next: @@ -781,10 +910,8 @@ int conf_write_autoconf(void) { struct symbol *sym; - const char *str; const char *name; FILE *out, *tristate, *out_h; - time_t now; int i; sym_clear_all_valid(); @@ -811,71 +938,23 @@ return 1; } - time(&now); - fprintf(out, "#\n" - "# Automatically generated make config: don't edit\n" - "# %s\n" - "# %s" - "#\n", - rootmenu.prompt->text, ctime(&now)); - fprintf(tristate, "#\n" - "# Automatically generated - do not edit\n" - "\n"); - fprintf(out_h, "/*\n" - " * Automatically generated C config: don't edit\n" - " * %s\n" - " * %s" - " */\n", - rootmenu.prompt->text, ctime(&now)); + conf_write_heading(out, &kconfig_printer_cb, NULL); + + conf_write_heading(tristate, &tristate_printer_cb, NULL); + + conf_write_heading(out_h, &header_printer_cb, NULL); for_all_symbols(i, sym) { sym_calc_value(sym); if (!(sym->flags & SYMBOL_WRITE) || !sym->name) continue; - /* write symbol to config file */ - conf_write_symbol(sym, out, false); + /* write symbol to auto.conf, tristate and header files */ + conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); - /* update autoconf and tristate files */ - switch (sym->type) { - case S_BOOLEAN: - case S_TRISTATE: - switch (sym_get_tristate_value(sym)) { - case no: - break; - case mod: - fprintf(tristate, "%s%s=M\n", - CONFIG_, sym->name); - fprintf(out_h, "#define %s%s_MODULE 1\n", - CONFIG_, sym->name); - break; - case yes: - if (sym->type == S_TRISTATE) - fprintf(tristate,"%s%s=Y\n", - CONFIG_, sym->name); - fprintf(out_h, "#define %s%s 1\n", - CONFIG_, sym->name); - break; - } - break; - case S_STRING: - conf_write_string(true, sym->name, sym_get_string_value(sym), out_h); - break; - case S_HEX: - str = sym_get_string_value(sym); - if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) { - fprintf(out_h, "#define %s%s 0x%s\n", - CONFIG_, sym->name, str); - break; - } - case S_INT: - str = sym_get_string_value(sym); - fprintf(out_h, "#define %s%s %s\n", - CONFIG_, sym->name, str); - break; - default: - break; - } + conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1); + + conf_write_symbol(out_h, sym, &header_printer_cb, NULL); } fclose(out); fclose(tristate);