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kconfig: introduce specialized printer
Make conf_write_symbol() grammar agnostic to be able to use it from different
code path. These path pass a printer callback which will print a symbol's name
and its value in different format.
conf_write_symbol()'s job become mostly only to prepare a string for the
printer. This avoid to have to pass specialized flag to generic
functions
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
[mmarek: rebased on top of de12518 (kconfig: autogenerated config_is_xxx
macro)]
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Arnaud Lacombe
Michal Marek
parent
ec6452a5ec
commit
e54e692ba6
@ -422,64 +422,228 @@ int conf_read(const char *name)
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return 0;
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}
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/* Write a S_STRING */
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static void conf_write_string(bool headerfile, const char *name,
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const char *str, FILE *out)
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/*
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* Kconfig configuration printer
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*
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* This printer is used when generating the resulting configuration after
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* kconfig invocation and `defconfig' files. Unset symbol might be omitted by
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* passing a non-NULL argument to the printer.
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*
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*/
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static void
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kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
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{
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int l;
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if (headerfile)
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fprintf(out, "#define %s%s \"", CONFIG_, name);
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else
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fprintf(out, "%s%s=\"", CONFIG_, name);
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while (1) {
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l = strcspn(str, "\"\\");
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if (l) {
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xfwrite(str, l, 1, out);
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str += l;
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}
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if (!*str)
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break;
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fprintf(out, "\\%c", *str++);
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}
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fputs("\"\n", out);
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}
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static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no)
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{
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const char *str;
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switch (sym->type) {
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case S_BOOLEAN:
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case S_TRISTATE:
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switch (sym_get_tristate_value(sym)) {
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case no:
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if (write_no)
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fprintf(out, "# %s%s is not set\n",
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if (*value == 'n') {
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bool skip_unset = (arg != NULL);
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if (!skip_unset)
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fprintf(fp, "# %s%s is not set\n",
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CONFIG_, sym->name);
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break;
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case mod:
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fprintf(out, "%s%s=m\n", CONFIG_, sym->name);
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break;
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case yes:
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fprintf(out, "%s%s=y\n", CONFIG_, sym->name);
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break;
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return;
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}
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break;
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case S_STRING:
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conf_write_string(false, sym->name, sym_get_string_value(sym), out);
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default:
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break;
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case S_HEX:
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case S_INT:
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str = sym_get_string_value(sym);
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fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str);
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}
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fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
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}
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static void
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kconfig_print_comment(FILE *fp, const char *value, void *arg)
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{
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const char *p = value;
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size_t l;
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for (;;) {
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l = strcspn(p, "\n");
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fprintf(fp, "#");
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if (l) {
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fprintf(fp, " ");
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fwrite(p, l, 1, fp);
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p += l;
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}
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fprintf(fp, "\n");
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if (*p++ == '\0')
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break;
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}
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}
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static struct conf_printer kconfig_printer_cb =
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{
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.print_symbol = kconfig_print_symbol,
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.print_comment = kconfig_print_comment,
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};
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/*
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* Header printer
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*
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* This printer is used when generating the `include/generated/autoconf.h' file.
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*/
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static void
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header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
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{
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const char *suffix = "";
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switch (sym->type) {
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case S_BOOLEAN:
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case S_TRISTATE:
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switch (*value) {
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case 'n':
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return;
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case 'm':
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suffix = "_MODULE";
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/* FALLTHROUGH */
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default:
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value = "1";
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}
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break;
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default:
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break;
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}
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fprintf(fp, "#define %s%s%s %s\n",
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CONFIG_, sym->name, suffix, value);
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}
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static void
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header_print_comment(FILE *fp, const char *value, void *arg)
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{
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const char *p = value;
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size_t l;
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fprintf(fp, "/*\n");
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for (;;) {
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l = strcspn(p, "\n");
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fprintf(fp, " *");
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if (l) {
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fprintf(fp, " ");
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fwrite(p, l, 1, fp);
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p += l;
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}
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fprintf(fp, "\n");
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if (*p++ == '\0')
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break;
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}
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fprintf(fp, " */\n");
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}
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static struct conf_printer header_printer_cb =
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{
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.print_symbol = header_print_symbol,
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.print_comment = header_print_comment,
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};
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/*
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* Function-style header printer
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*
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* This printer is used to generate the config_is_xxx() function-style macros
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* in `include/generated/autoconf.h'
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*/
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static void
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header_function_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
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{
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int val = 0;
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char c;
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char *tmp, *d;
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switch (sym->type) {
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case S_BOOLEAN:
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case S_TRISTATE:
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break;
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default:
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return;
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}
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if (*value == 'm')
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val = 2;
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else if (*value == 'y')
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val = 1;
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d = strdup(CONFIG_);
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tmp = d;
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while ((c = *d)) {
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*d = tolower(c);
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d++;
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}
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fprintf(fp, "#define %sis_", tmp);
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free(tmp);
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d = strdup(sym->name);
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tmp = d;
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while ((c = *d)) {
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*d = tolower(c);
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d++;
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}
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fprintf(fp, "%s%s() %d\n", tmp, (val > 1) ? "_module" : "",
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val ? 1 : 0);
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free(tmp);
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}
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static struct conf_printer header_function_printer_cb =
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{
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.print_symbol = header_function_print_symbol,
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};
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/*
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* Tristate printer
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*
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* This printer is used when generating the `include/config/tristate.conf' file.
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*/
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static void
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tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
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{
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if (sym->type == S_TRISTATE && *value != 'n')
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fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
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}
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static struct conf_printer tristate_printer_cb =
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{
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.print_symbol = tristate_print_symbol,
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.print_comment = kconfig_print_comment,
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};
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static void conf_write_symbol(FILE *fp, struct symbol *sym,
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struct conf_printer *printer, void *printer_arg)
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{
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const char *str;
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switch (sym->type) {
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case S_OTHER:
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case S_UNKNOWN:
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break;
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case S_STRING:
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str = sym_get_string_value(sym);
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str = sym_escape_string_value(str);
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printer->print_symbol(fp, sym, str, printer_arg);
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free((void *)str);
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break;
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default:
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str = sym_get_string_value(sym);
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printer->print_symbol(fp, sym, str, printer_arg);
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}
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}
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static void
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conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
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{
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char buf[256];
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snprintf(buf, sizeof(buf),
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"\n"
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"Automatically generated file; DO NOT EDIT.\n"
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"%s\n",
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rootmenu.prompt->text);
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printer->print_comment(fp, buf, printer_arg);
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}
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/*
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* Write out a minimal config.
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* All values that has default values are skipped as this is redundant.
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@ -536,7 +700,7 @@ int conf_write_defconfig(const char *filename)
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goto next_menu;
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}
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}
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conf_write_symbol(sym, out, true);
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conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
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}
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next_menu:
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if (menu->list != NULL) {
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@ -601,11 +765,7 @@ int conf_write(const char *name)
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if (!out)
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return 1;
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fprintf(out, _("#\n"
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"# Automatically generated make config: don't edit\n"
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"# %s\n"
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"#\n"),
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rootmenu.prompt->text);
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conf_write_heading(out, &kconfig_printer_cb, NULL);
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if (!conf_get_changed())
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sym_clear_all_valid();
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@ -626,8 +786,8 @@ int conf_write(const char *name)
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if (!(sym->flags & SYMBOL_WRITE))
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goto next;
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sym->flags &= ~SYMBOL_WRITE;
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/* Write config symbol to file */
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conf_write_symbol(sym, out, true);
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conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
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}
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next:
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@ -773,33 +933,9 @@ out:
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return res;
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}
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static void conf_write_function_autoconf(FILE *out, char* conf, char* name,
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int val)
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{
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char c;
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char *tmp, *d;
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d = strdup(conf);
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tmp = d;
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while ((c = *conf++))
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*d++ = tolower(c);
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fprintf(out, "#define %sis_", tmp);
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free(tmp);
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d = strdup(name);
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tmp = d;
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while ((c = *name++))
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*d++ = tolower(c);
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fprintf(out, "%s%s() %d\n", tmp, (val > 1) ? "_module" : "",
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val ? 1 : 0);
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free(tmp);
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}
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int conf_write_autoconf(void)
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{
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struct symbol *sym;
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const char *str;
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const char *name;
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FILE *out, *tristate, *out_h;
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int i;
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@ -828,72 +964,24 @@ int conf_write_autoconf(void)
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return 1;
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}
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fprintf(out, "#\n"
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"# Automatically generated make config: don't edit\n"
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"# %s\n"
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"#\n",
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rootmenu.prompt->text);
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fprintf(tristate, "#\n"
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"# Automatically generated - do not edit\n"
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"\n");
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fprintf(out_h, "/*\n"
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" * Automatically generated C config: don't edit\n"
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" * %s\n"
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" */\n",
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rootmenu.prompt->text);
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conf_write_heading(out, &kconfig_printer_cb, NULL);
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conf_write_heading(tristate, &tristate_printer_cb, NULL);
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conf_write_heading(out_h, &header_printer_cb, NULL);
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for_all_symbols(i, sym) {
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int fct_val = 0;
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sym_calc_value(sym);
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if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
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continue;
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/* write symbol to config file */
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conf_write_symbol(sym, out, false);
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/* write symbol to auto.conf, tristate and header files */
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conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
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/* update autoconf and tristate files */
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switch (sym->type) {
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case S_BOOLEAN:
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case S_TRISTATE:
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switch (sym_get_tristate_value(sym)) {
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case no:
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break;
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case mod:
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fprintf(tristate, "%s%s=M\n",
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CONFIG_, sym->name);
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fprintf(out_h, "#define %s%s_MODULE 1\n",
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CONFIG_, sym->name);
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fct_val = 2;
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break;
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case yes:
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if (sym->type == S_TRISTATE)
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fprintf(tristate,"%s%s=Y\n",
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CONFIG_, sym->name);
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fprintf(out_h, "#define %s%s 1\n",
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CONFIG_, sym->name);
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fct_val = 1;
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break;
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}
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conf_write_function_autoconf(out_h, CONFIG_, sym->name, fct_val);
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break;
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case S_STRING:
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conf_write_string(true, sym->name, sym_get_string_value(sym), out_h);
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break;
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case S_HEX:
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str = sym_get_string_value(sym);
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if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
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fprintf(out_h, "#define %s%s 0x%s\n",
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CONFIG_, sym->name, str);
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break;
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}
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case S_INT:
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str = sym_get_string_value(sym);
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fprintf(out_h, "#define %s%s %s\n",
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CONFIG_, sym->name, str);
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break;
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default:
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break;
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}
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conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
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conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
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conf_write_symbol(out_h, sym, &header_function_printer_cb, NULL);
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}
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fclose(out);
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fclose(tristate);
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@ -87,6 +87,11 @@ void sym_set_change_count(int count);
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void sym_add_change_count(int count);
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void conf_set_all_new_symbols(enum conf_def_mode mode);
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struct conf_printer {
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void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
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void (*print_comment)(FILE *, const char *, void *);
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};
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/* confdata.c and expr.c */
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static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
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{
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@ -31,6 +31,7 @@ P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
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P(sym_lookup,struct symbol *,(const char *name, int flags));
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P(sym_find,struct symbol *,(const char *name));
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P(sym_expand_string_value,const char *,(const char *in));
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P(sym_escape_string_value, const char *,(const char *in));
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P(sym_re_search,struct symbol **,(const char *pattern));
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P(sym_type_name,const char *,(enum symbol_type type));
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P(sym_calc_value,void,(struct symbol *sym));
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@ -750,7 +750,8 @@ const char *sym_get_string_value(struct symbol *sym)
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case no:
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return "n";
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case mod:
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return "m";
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sym_calc_value(modules_sym);
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return (modules_sym->curr.tri == no) ? "n" : "m";
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case yes:
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return "y";
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}
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@ -892,6 +893,49 @@ const char *sym_expand_string_value(const char *in)
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return res;
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}
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const char *sym_escape_string_value(const char *in)
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{
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const char *p;
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size_t reslen;
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char *res;
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size_t l;
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reslen = strlen(in) + strlen("\"\"") + 1;
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p = in;
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for (;;) {
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l = strcspn(p, "\"\\");
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p += l;
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if (p[0] == '\0')
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break;
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reslen++;
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p++;
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}
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res = malloc(reslen);
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res[0] = '\0';
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strcat(res, "\"");
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p = in;
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for (;;) {
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l = strcspn(p, "\"\\");
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strncat(res, p, l);
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p += l;
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if (p[0] == '\0')
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break;
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strcat(res, "\\");
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strncat(res, p++, 1);
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}
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strcat(res, "\"");
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return res;
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}
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struct symbol **sym_re_search(const char *pattern)
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||||
{
|
||||
struct symbol *sym, **sym_arr = NULL;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user