From 6997e461fdb39985957d24d81e612113cf39e35c Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 4 Apr 2013 11:24:24 +0000 Subject: support/kconfig: upgrade to 3.9-rc2 Our kconfig code is updated to the version of kernel 3.9-rc2. No major issues during the migration, except: * Some conflicts when applying 03-change-config-option-prefix.patch due to upstream kernel changes. * The need of adding a new patch, 15-fix-qconf-moc-rule.patch, to fix the make rule that generates the moc file for the Qt-based interface. Signed-off-by: Thomas Petazzoni Acked-by: Gustavo Zacarias Tested-by: Gustavo Zacarias Signed-off-by: Peter Korsgaard --- support/kconfig/confdata.c | 369 ++++++++++++++++++++++++++++++--------------- 1 file changed, 247 insertions(+), 122 deletions(-) (limited to 'support/kconfig/confdata.c') diff --git a/support/kconfig/confdata.c b/support/kconfig/confdata.c index 54f20ca96..b7df92f9b 100644 --- a/support/kconfig/confdata.c +++ b/support/kconfig/confdata.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -14,7 +15,6 @@ #include #include -#define LKC_DIRECT_LINK #include "lkc.h" static void conf_warning(const char *fmt, ...) @@ -127,6 +127,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) sym->flags |= def_flags; break; } + /* fall through */ case S_BOOLEAN: if (p[0] == 'y') { sym->def[def].tri = yes; @@ -139,7 +140,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) 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++) @@ -147,6 +148,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) sym->type = S_STRING; goto done; } + /* fall through */ case S_STRING: if (*p++ != '"') break; @@ -161,6 +163,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) conf_warning("invalid string found"); return 1; } + /* fall through */ case S_INT: case S_HEX: done: @@ -178,10 +181,66 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) return 0; } +#define LINE_GROWTH 16 +static int add_byte(int c, char **lineptr, size_t slen, size_t *n) +{ + char *nline; + size_t new_size = slen + 1; + if (new_size > *n) { + new_size += LINE_GROWTH - 1; + new_size *= 2; + nline = realloc(*lineptr, new_size); + if (!nline) + return -1; + + *lineptr = nline; + *n = new_size; + } + + (*lineptr)[slen] = c; + + return 0; +} + +static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream) +{ + char *line = *lineptr; + size_t slen = 0; + + for (;;) { + int c = getc(stream); + + switch (c) { + case '\n': + if (add_byte(c, &line, slen, n) < 0) + goto e_out; + slen++; + /* fall through */ + case EOF: + if (add_byte('\0', &line, slen, n) < 0) + goto e_out; + *lineptr = line; + if (slen == 0) + return -1; + return slen; + default: + if (add_byte(c, &line, slen, n) < 0) + goto e_out; + slen++; + } + } + +e_out: + line[slen-1] = '\0'; + *lineptr = line; + return -1; +} + int conf_read_simple(const char *name, int def) { FILE *in = NULL; - char line[1024]; + char *line = NULL; + size_t line_asize = 0; char *p, *p2; struct symbol *sym; int i, def_flags; @@ -236,13 +295,14 @@ load: 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; } } - while (fgets(line, sizeof(line), in)) { + while (compat_getline(&line, &line_asize, in) != -1) { conf_lineno++; sym = NULL; if (line[0] == '#') { @@ -330,6 +390,7 @@ setsym: cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri); } } + free(line); fclose(in); if (modules_sym) @@ -339,10 +400,8 @@ setsym: int conf_read(const char *name) { - struct symbol *sym, *choice_sym; - struct property *prop; - struct expr *e; - int i, flags; + struct symbol *sym; + int i; sym_set_change_count(0); @@ -352,7 +411,7 @@ int conf_read(const char *name) for_all_symbols(i, sym) { sym_calc_value(sym); if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO)) - goto sym_ok; + continue; if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) { /* check that calculated value agrees with saved value */ switch (sym->type) { @@ -361,29 +420,18 @@ int conf_read(const char *name) if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym)) break; if (!sym_is_choice(sym)) - goto sym_ok; + continue; + /* fall through */ default: if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val)) - goto sym_ok; + continue; break; } } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE)) /* no previous value and not saved */ - goto sym_ok; + continue; conf_unsaved++; /* maybe print value in verbose mode... */ - sym_ok: - if (!sym_is_choice(sym)) - continue; - /* The choice symbol only has a set value (and thus is not new) - * if all its visible childs have values. - */ - prop = sym_get_choice_prop(sym); - flags = sym->flags; - expr_list_for_each_sym(prop->expr, e, choice_sym) - if (choice_sym->visible != no) - flags &= choice_sym->flags; - sym->flags &= flags | ~SYMBOL_DEF_USER; } for_all_symbols(i, sym) { @@ -416,64 +464,191 @@ int conf_read(const char *name) return 0; } -/* Write a S_STRING */ -static void conf_write_string(bool headerfile, const char *name, - const char *str, FILE *out) +/* + * 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) { - int l; - if (headerfile) - fprintf(out, "#define %s \"", name); - else - fprintf(out, "%s=\"", name); - while (1) { - l = strcspn(str, "\"\\"); + switch (sym->type) { + case S_BOOLEAN: + case S_TRISTATE: + if (*value == 'n') { + bool skip_unset = (arg != NULL); + + if (!skip_unset) + fprintf(fp, "# %s is not set\n", + sym->name); + return; + } + break; + default: + break; + } + + fprintf(fp, "%s=%s\n", sym->name, value); +} + +static void +kconfig_print_comment(FILE *fp, const char *value, void *arg) +{ + const char *p = value; + size_t l; + + for (;;) { + l = strcspn(p, "\n"); + fprintf(fp, "#"); if (l) { - xfwrite(str, l, 1, out); - str += l; + fprintf(fp, " "); + xfwrite(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 is not set\n", - sym->name); - break; - case mod: - fprintf(out, "%s=m\n", sym->name); - break; - case yes: - fprintf(out, "%s=y\n", 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 1\n", + sym->name, suffix); } 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\n", + sym->name, prefix, value); break; - case S_HEX: + } + case S_STRING: case S_INT: - str = sym_get_string_value(sym); - fprintf(out, "%s=%s\n", sym->name, str); + fprintf(fp, "#define %s %s\n", + 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, " "); + xfwrite(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=%c\n", 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. @@ -530,7 +705,7 @@ int conf_write_defconfig(const char *filename) goto next_menu; } } - conf_write_symbol(sym, out, true); + conf_write_symbol(out, sym, &kconfig_printer_cb, NULL); } next_menu: if (menu->list != NULL) { @@ -598,11 +773,7 @@ int conf_write(const char *name) if (!out) return 1; - fprintf(out, _("#\n" - "# Automatically generated make config: don't edit\n" - "# %s\n" - "#\n"), - rootmenu.prompt->text); + conf_write_heading(out, &kconfig_printer_cb, NULL); if (!conf_get_changed()) sym_clear_all_valid(); @@ -623,8 +794,8 @@ int conf_write(const char *name) 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: @@ -788,7 +959,6 @@ err: int conf_write_autoconf(void) { struct symbol *sym; - const char *str; const char *name; FILE *out, *tristate, *out_h; int i; @@ -830,68 +1000,23 @@ int conf_write_autoconf(void) return 1; } - fprintf(out, "#\n" - "# Automatically generated make config: don't edit\n" - "# %s\n" - "#\n", - rootmenu.prompt->text); - fprintf(tristate, "#\n" - "# Automatically generated - do not edit\n" - "\n"); - fprintf(out_h, "/*\n" - " * Automatically generated C config: don't edit\n" - " * %s\n" - " */\n", - rootmenu.prompt->text); + 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=M\n", - sym->name); - fprintf(out_h, "#define %s_MODULE 1\n", - sym->name); - break; - case yes: - if (sym->type == S_TRISTATE) - fprintf(tristate,"%s=Y\n", - sym->name); - fprintf(out_h, "#define %s 1\n", - 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 0x%s\n", - sym->name, str); - break; - } - case S_INT: - str = sym_get_string_value(sym); - fprintf(out_h, "#define %s %s\n", - 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); -- cgit v1.2.3