diff options
Diffstat (limited to 'scripts/kconfig/confdata.c')
-rw-r--r-- | scripts/kconfig/confdata.c | 161 |
1 files changed, 78 insertions, 83 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 4a6811d77d..f53dcdd445 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -155,6 +155,13 @@ static void conf_message(const char *fmt, ...) static const char *conf_filename; static int conf_lineno, conf_warnings; +bool conf_errors(void) +{ + if (conf_warnings) + return getenv("KCONFIG_WERROR"); + return false; +} + static void conf_warning(const char *fmt, ...) { va_list ap; @@ -289,16 +296,12 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p) #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 = xrealloc(*lineptr, new_size); - if (!nline) - return -1; - - *lineptr = nline; + *lineptr = xrealloc(*lineptr, new_size); *n = new_size; } @@ -341,19 +344,37 @@ e_out: return -1; } +/* like getline(), but the newline character is stripped away */ +static ssize_t getline_stripped(char **lineptr, size_t *n, FILE *stream) +{ + ssize_t len; + + len = compat_getline(lineptr, n, stream); + + if (len > 0 && (*lineptr)[len - 1] == '\n') { + len--; + (*lineptr)[len] = '\0'; + + if (len > 0 && (*lineptr)[len - 1] == '\r') { + len--; + (*lineptr)[len] = '\0'; + } + } + + return len; +} + int conf_read_simple(const char *name, int def) { FILE *in = NULL; char *line = NULL; size_t line_asize = 0; - char *p, *p2; + char *p, *val; struct symbol *sym; int i, def_flags; - const char *warn_unknown; - const char *werror; + const char *warn_unknown, *sym_name; warn_unknown = getenv("KCONFIG_WARN_UNKNOWN_SYMBOLS"); - werror = getenv("KCONFIG_WERROR"); if (name) { in = zconf_fopen(name); } else { @@ -417,8 +438,7 @@ load: case S_INT: case S_HEX: case S_STRING: - if (sym->def[def].val) - free(sym->def[def].val); + free(sym->def[def].val); /* fall through */ default: sym->def[def].val = NULL; @@ -426,90 +446,68 @@ load: } } - while (compat_getline(&line, &line_asize, in) != -1) { + while (getline_stripped(&line, &line_asize, in) != -1) { conf_lineno++; - sym = NULL; + + if (!line[0]) /* blank line */ + continue; + if (line[0] == '#') { - if (memcmp(line + 2, CONFIG_, strlen(CONFIG_))) + if (line[1] != ' ') + continue; + p = line + 2; + if (memcmp(p, CONFIG_, strlen(CONFIG_))) continue; - p = strchr(line + 2 + strlen(CONFIG_), ' '); + sym_name = p + strlen(CONFIG_); + p = strchr(sym_name, ' '); if (!p) continue; *p++ = 0; - if (strncmp(p, "is not set", 10)) + if (strcmp(p, "is not set")) continue; - if (def == S_DEF_USER) { - sym = sym_find(line + 2 + strlen(CONFIG_)); - if (!sym) { - if (warn_unknown) - conf_warning("unknown symbol: %s", - line + 2 + strlen(CONFIG_)); - - conf_set_changed(true); - continue; - } - } else { - sym = sym_lookup(line + 2 + strlen(CONFIG_), 0); - if (sym->type == S_UNKNOWN) - sym->type = S_BOOLEAN; - } - if (sym->flags & def_flags) { - conf_warning("override: reassigning to symbol %s", sym->name); - } - switch (sym->type) { - case S_BOOLEAN: - case S_TRISTATE: - sym->def[def].tri = no; - sym->flags |= def_flags; - break; - default: - ; - } - } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) { - p = strchr(line + strlen(CONFIG_), '='); - if (!p) + + val = "n"; + } else { + if (memcmp(line, CONFIG_, strlen(CONFIG_))) { + conf_warning("unexpected data: %s", line); continue; - *p++ = 0; - p2 = strchr(p, '\n'); - if (p2) { - *p2-- = 0; - if (*p2 == '\r') - *p2 = 0; } - sym = sym_find(line + strlen(CONFIG_)); - if (!sym) { - if (def == S_DEF_AUTO) { - /* - * Reading from include/config/auto.conf - * If CONFIG_FOO previously existed in - * auto.conf but it is missing now, - * include/config/FOO must be touched. - */ - conf_touch_dep(line + strlen(CONFIG_)); - } else { - if (warn_unknown) - conf_warning("unknown symbol: %s", - line + strlen(CONFIG_)); - - conf_set_changed(true); - } + sym_name = line + strlen(CONFIG_); + p = strchr(sym_name, '='); + if (!p) { + conf_warning("unexpected data: %s", line); continue; } + *p = 0; + val = p + 1; + } - if (sym->flags & def_flags) { - conf_warning("override: reassigning to symbol %s", sym->name); - } - if (conf_set_sym_val(sym, def, def_flags, p)) - continue; - } else { - if (line[0] != '\r' && line[0] != '\n') - conf_warning("unexpected data: %.*s", - (int)strcspn(line, "\r\n"), line); + sym = sym_find(sym_name); + if (!sym) { + if (def == S_DEF_AUTO) { + /* + * Reading from include/config/auto.conf. + * If CONFIG_FOO previously existed in auto.conf + * but it is missing now, include/config/FOO + * must be touched. + */ + conf_touch_dep(sym_name); + } else { + if (warn_unknown) + conf_warning("unknown symbol: %s", sym_name); + conf_set_changed(true); + } continue; } + if (sym->flags & def_flags) + conf_warning("override: reassigning to symbol %s", sym->name); + + if (conf_set_sym_val(sym, def, def_flags, val)) + continue; + if (sym && sym_is_choice_value(sym)) { struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); switch (sym->def[def].tri) { @@ -533,9 +531,6 @@ load: free(line); fclose(in); - if (conf_warnings && werror) - exit(1); - return 0; } @@ -594,7 +589,7 @@ int conf_read(const char *name) /* Reset a string value if it's out of range */ if (sym_string_within_range(sym, sym->def[S_DEF_USER].val)) break; - sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER); + sym->flags &= ~SYMBOL_VALID; conf_unsaved++; break; default: |