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kconfig: autogenerated config_is_xxx macro

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this will allow to use to use

	if(config_is_xxx())
	if(config_is_xxx_module())

in the code instead of

	#ifdef CONFIG_xxx
	#ifdef CONFIG_xxx_MODULE

and now let the compiler remove the non usefull code and not the
pre-processor

as done in the mach-types for arm as exmaple

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2011-05-06 07:03:49 +02:00 committed by Michal Marek
parent 76ce94a371
commit de125187dc
1 changed files with 29 additions and 0 deletions
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29
scripts/kconfig/confdata.c
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@ -778,6 +778,29 @@ static int conf_split_config(void)
return res; return res;
} }
static void conf_write_function_autoconf(FILE *out, char* conf, char* name,
int val)
{
char c;
char *tmp, *d;
d = strdup(conf);
tmp = d;
while ((c = *conf++))
*d++ = tolower(c);
fprintf(out, "#define %sis_", tmp);
free(tmp);
d = strdup(name);
tmp = d;
while ((c = *name++))
*d++ = tolower(c);
fprintf(out, "%s%s() %d\n", tmp, (val > 1) ? "_module" : "",
val ? 1 : 0);
free(tmp);
}
int conf_write_autoconf(void) int conf_write_autoconf(void)
{ {
struct symbol *sym; struct symbol *sym;
@ -785,6 +808,7 @@ int conf_write_autoconf(void)
const char *name; const char *name;
FILE *out, *tristate, *out_h; FILE *out, *tristate, *out_h;
int i; int i;
int fct_val;
sym_clear_all_valid(); sym_clear_all_valid();
@ -825,6 +849,7 @@ int conf_write_autoconf(void)
rootmenu.prompt->text); rootmenu.prompt->text);
for_all_symbols(i, sym) { for_all_symbols(i, sym) {
fct_val = 1;
sym_calc_value(sym); sym_calc_value(sym);
if (!(sym->flags & SYMBOL_WRITE) || !sym->name) if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
continue; continue;
@ -838,12 +863,14 @@ int conf_write_autoconf(void)
case S_TRISTATE: case S_TRISTATE:
switch (sym_get_tristate_value(sym)) { switch (sym_get_tristate_value(sym)) {
case no: case no:
fct_val = 0;
break; break;
case mod: case mod:
fprintf(tristate, "%s%s=M\n", fprintf(tristate, "%s%s=M\n",
CONFIG_, sym->name); CONFIG_, sym->name);
fprintf(out_h, "#define %s%s_MODULE 1\n", fprintf(out_h, "#define %s%s_MODULE 1\n",
CONFIG_, sym->name); CONFIG_, sym->name);
fct_val = 2;
break; break;
case yes: case yes:
if (sym->type == S_TRISTATE) if (sym->type == S_TRISTATE)
@ -870,8 +897,10 @@ int conf_write_autoconf(void)
CONFIG_, sym->name, str); CONFIG_, sym->name, str);
break; break;
default: default:
fct_val = 0;
break; break;
} }
conf_write_function_autoconf(out_h, CONFIG_, sym->name, fct_val);
} }
fclose(out); fclose(out);
fclose(tristate); fclose(tristate);