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build: Update kconfig to always emit symbols - even when false. 

Always emit CONFIG_X definitions in autoconf.h - set them to 0 when
they are disabled.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2014-08-23 22:13:19 -04:00
parent 8cd497a117
commit 37a91e9c10
1 changed files with 9 additions and 1 deletions
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10
scripts/kconfig/confdata.c
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@ -543,6 +543,8 @@ header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
switch (*value) { switch (*value) {
case 'n': case 'n':
fprintf(fp, "#define %s%s%s 0\n",
CONFIG_, sym->name, suffix);
break; break;
case 'm': case 'm':
suffix = "_MODULE"; suffix = "_MODULE";
@ -558,6 +560,8 @@ header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X')) if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
prefix = "0x"; prefix = "0x";
if (!value[0])
prefix = "0";
fprintf(fp, "#define %s%s %s%s\n", fprintf(fp, "#define %s%s %s%s\n",
CONFIG_, sym->name, prefix, value); CONFIG_, sym->name, prefix, value);
break; break;
@ -983,8 +987,12 @@ int conf_write_autoconf(void)
for_all_symbols(i, sym) { for_all_symbols(i, sym) {
sym_calc_value(sym); sym_calc_value(sym);
if (!(sym->flags & SYMBOL_WRITE) || !sym->name) if (!sym->name)
continue; continue;
if (!(sym->flags & SYMBOL_WRITE)) {
conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
continue;
}
/* write symbol to auto.conf, tristate and header files */ /* write symbol to auto.conf, tristate and header files */
conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1); conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);