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commit ab0cc6067d5a00182e89fbec82b942eb3d803204
Author: Patrick Georgi <pgeorgi@google.com>
Date: Fri Nov 22 22:08:15 2019 +0100
util/kconfig: Allow emitting false booleans into kconfig output
This is controlled by an environment variable so the same tool is
useful in different contexts.
Change-Id: I9e62b05e45709f1539e455e2eed37308609be15e
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Index: kconfig/symbol.c
===================================================================
--- kconfig.orig/symbol.c
+++ kconfig/symbol.c
@@ -757,7 +757,7 @@ const char *sym_get_string_default(struc
}
case S_INT:
case S_HEX:
- return str;
+ return "0";
case S_STRING:
return str;
case S_UNKNOWN:
Index: kconfig/confdata.c
===================================================================
--- kconfig.orig/confdata.c
+++ kconfig/confdata.c
@@ -715,7 +715,12 @@ static void print_symbol_for_dotconfig(F
static void print_symbol_for_autoconf(FILE *fp, struct symbol *sym)
{
- __print_symbol(fp, sym, OUTPUT_N_NONE, false);
+ int print_negatives = getenv("KCONFIG_NEGATIVES") != NULL;
+ enum output_n out = OUTPUT_N_NONE;
+ if (print_negatives) {
+ out = OUTPUT_N;
+ }
+ __print_symbol(fp, sym, out, false);
}
void print_symbol_for_listconfig(struct symbol *sym)
@@ -740,6 +745,10 @@ static void print_symbol_for_c(FILE *fp,
case S_TRISTATE:
switch (*val) {
case 'n':
+ if (getenv("KCONFIG_NEGATIVES") != NULL) {
+ val = "0";
+ break;
+ }
return;
case 'm':
sym_suffix = "_MODULE";
@@ -751,6 +760,12 @@ static void print_symbol_for_c(FILE *fp,
case S_HEX:
if (val[0] != '0' || (val[1] != 'x' && val[1] != 'X'))
val_prefix = "0x";
+ /* fall through */
+ case S_INT:
+ if (val[0] == '\0') {
+ val = "0";
+ val_prefix = "";
+ }
break;
case S_STRING:
escaped = escape_string_value(val);
@@ -1108,8 +1123,9 @@ static int __conf_write_autoconf(const c
conf_write_heading(file, comment_style);
+ int print_negatives = getenv("KCONFIG_NEGATIVES") != NULL;
for_all_symbols(i, sym)
- if ((sym->flags & SYMBOL_WRITE) && sym->name)
+ if (((sym->flags & SYMBOL_WRITE) || (print_negatives && sym->type != S_STRING)) && sym->name)
print_symbol(file, sym);
fflush(file);
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