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util/kconfig: Add `toada` Ada spec generation tool 

Converts `auto.conf` to an Ada spec file. Write to
$(obj)/cb-config.ads and set the package name to
`CB.Config`.

Change-Id: I97c060d8a613c74a82a18aff9524ad4b01f9df56
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/31053
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Nico Huber 2019-01-01 19:03:33 +01:00 committed by Patrick Georgi
parent a402a9e7ab
commit 533bc0a7ef
3 changed files with 159 additions and 0 deletions
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9
Makefile
View File

@ -44,6 +44,7 @@ COREBOOT_EXPORTS += top src srck obj objutil objk
DOTCONFIG ?= $(top)/.config
KCONFIG_CONFIG = $(DOTCONFIG)
KCONFIG_AUTOADS := $(obj)/cb-config.ads
KCONFIG_AUTOHEADER := $(obj)/config.h
KCONFIG_AUTOCONFIG := $(obj)/auto.conf
KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
@ -51,10 +52,12 @@ KCONFIG_SPLITCONFIG := $(obj)/config
KCONFIG_TRISTATE := $(obj)/tristate.conf
KCONFIG_NEGATIVES := 1
KCONFIG_STRICT := 1
KCONFIG_PACKAGE := CB.Config
COREBOOT_EXPORTS += KCONFIG_CONFIG KCONFIG_AUTOHEADER KCONFIG_AUTOCONFIG
COREBOOT_EXPORTS += KCONFIG_DEPENDENCIES KCONFIG_SPLITCONFIG KCONFIG_TRISTATE
COREBOOT_EXPORTS += KCONFIG_NEGATIVES KCONFIG_STRICT
COREBOOT_EXPORTS += KCONFIG_AUTOADS KCONFIG_PACKAGE
# directory containing the toplevel Makefile.inc
TOPLEVEL := .
@ -179,6 +182,12 @@ real-all: real-target
$(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG) $(objutil)/kconfig/conf
+$(MAKE) oldconfig
$(KCONFIG_AUTOCONFIG): $(KCONFIG_AUTOHEADER)
true
$(KCONFIG_AUTOADS): $(KCONFIG_AUTOCONFIG) $(objutil)/kconfig/toada
$(objutil)/kconfig/toada CB.Config <$< >$@
# Add a new class of source/object files to the build system
add-class= \
$(eval $(1)-srcs:=) \

5
util/kconfig/Makefile
View File

@ -344,6 +344,8 @@ $(objk)/nconf: $(patsubst %,$(objk)/%,$(nconf-objs))
$(HOSTCC) $(HOSTCFLAGS) -o $@ $^ $(HOSTLOADLIBES_nconf)
$(objk)/conf: $(patsubst %,$(objk)/%,$(conf-objs))
$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -o $@ $^
$(objk)/toada: $(objk)/toada.o
$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -o $@ $^
$(objk)/mconf.o: $(srck)/mconf.c
$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -c -o $@ $<
@ -382,5 +384,8 @@ $(objk)/lxdialog/lxdialog: $(objk)/dochecklxdialog \
$(objk)/lxdialog/%.o: $(srck)/lxdialog/%.c
$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $^ -c -o $@
$(objk)/toada.o: $(srck)/toada.c
$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -c -o $@ $<
$(objk)/%.o: HOSTCFLAGS+=-I$(srck) -I$(objk)
$(objk)/%.o: HOSTCXXFLAGS+=-I$(srck) -I$(objk)

145
util/kconfig/toada.c Normal file
View File

@ -0,0 +1,145 @@
/*
* This file is part of the coreboot project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
static void print_bool(const char *const name, const bool val)
{
printf(" %-46s : constant boolean := %s;\n",
name, val ? "true" : "false");
}
static void print_hex(const char *const name, const char *val)
{
unsigned int hexlen;
printf(" %-46s : constant := 16#", name);
for (hexlen = strlen(val); hexlen > 0;) {
const unsigned int len = hexlen % 4 ? : 4;
char quad[] = "0000";
unsigned int i;
for (i = 0; i < len; ++i)
quad[4 - len + i] = val[i];
printf("%s", quad);
val += len;
hexlen -= len;
if (hexlen > 0)
printf("_");
}
printf ("#;\n");
}
static void print_dec(const char *const name, const char *const val)
{
printf(" %-46s : constant := %s;\n", name, val);
}
static void print_string(const char *const name, const char *const val)
{
printf(" %-46s : constant string := \"%s\";\n", name, val);
}
int main(int argc, char *argv[])
{
char unset_fmt[256], string_fmt[256], set_fmt[256], line[256];
char *prefix = "CONFIG", *package = "KConfig";
if (argc > 3) {
fprintf(stderr,
"Usage: %s [<package name> [<config prefix>]]\n\n",
argv[0]);
return 1;
}
if (argc > 2)
prefix = argv[2];
if (argc > 1)
package = argv[1];
snprintf(set_fmt, sizeof(set_fmt), "%s_%%255[^=]=%%255s", prefix);
snprintf(string_fmt, sizeof(string_fmt),
"%s_%%255[^=]=\"%%255[^\"]\"", prefix);
snprintf(unset_fmt, sizeof(unset_fmt),
"# %s_%%255s is not set", prefix);
printf("package %s is\n\n", package);
while (fgets(line, sizeof(line), stdin)) {
char name[256], val[256];
if (line[strlen(line) - 1] != '\n') {
fprintf(stderr,
"Line longer than %zu chars, skipping...\n",
sizeof(line) - 1);
while (fgets(line, sizeof(line), stdin)) {
if (line[strlen(line) - 1] == '\n')
break;
}
continue;
}
if (sscanf(line, unset_fmt, name) == 1) {
print_bool(name, false);
continue;
}
if (sscanf(line, string_fmt, name, val) == 2) {
print_string(name, val);
continue;
}
switch (sscanf(line, set_fmt, name, val)) {
case 1:
/* ignore for now, our Kconfig is full of these atm */
/* fprintf(stderr, "unset non-bool: %s=\n", name); */
continue;
case 2:
if (strcmp(val, "\"\"") == 0) {
print_string(name, "");
} else if (strcmp(val, "y") == 0) {
print_bool(name, true);
} else if (strncmp(val, "0x", 2) == 0) {
print_hex(name, val + 2);
} else if (isdigit(val[0])) {
print_dec(name, val);
} else {
fprintf(stderr,
"couldn't parse value '%s' for '%s'\n",
val, name);
}
continue;
default:
break;
}
unsigned int i = 0;
while (isspace(line[i]))
++i;
if (line[i] == '#') {
printf(" --%s", line + i + 1);
continue;
} else if (i == strlen(line)) {
continue;
}
fprintf(stderr, "spurious line:\n%s", line);
}
printf("\nend %s;\n", package);
return 0;
}