Commit de125187 authored by Jean-Christophe PLAGNIOL-VILLARD's avatar Jean-Christophe PLAGNIOL-VILLARD Committed by Michal Marek
Browse files

kconfig: autogenerated config_is_xxx macro 



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: default avatarJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
parent 76ce94a3

scripts/kconfig/confdata.c

+29 −0
Original line number Diff line number Diff line
@@ -778,6 +778,29 @@ out: 
	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)

{

	struct symbol *sym;
@@ -785,6 +808,7 @@ int conf_write_autoconf(void) 
	const char *name;

	FILE *out, *tristate, *out_h;

	int i;

	int fct_val;



	sym_clear_all_valid();
@@ -825,6 +849,7 @@ int conf_write_autoconf(void) 
		       rootmenu.prompt->text);



	for_all_symbols(i, sym) {

		fct_val = 1;

		sym_calc_value(sym);

		if (!(sym->flags & SYMBOL_WRITE) || !sym->name)

			continue;
@@ -838,12 +863,14 @@ int conf_write_autoconf(void) 
		case S_TRISTATE:

			switch (sym_get_tristate_value(sym)) {

			case no:

				fct_val = 0;

				break;

			case mod:

				fprintf(tristate, "%s%s=M\n",

				    CONFIG_, sym->name);

				fprintf(out_h, "#define %s%s_MODULE 1\n",

				    CONFIG_, sym->name);

				fct_val = 2;

				break;

			case yes:

				if (sym->type == S_TRISTATE)
@@ -870,8 +897,10 @@ int conf_write_autoconf(void) 
			    CONFIG_, sym->name, str);

			break;

		default:

			fct_val = 0;

			break;

		}

		conf_write_function_autoconf(out_h, CONFIG_, sym->name, fct_val);

	}

	fclose(out);

	fclose(tristate);

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