kumquat-buildroot/package/config/util.c
Thomas Petazzoni 52a142a631 Bump package/config to 2.6.36-rc1
The goal is to be able to use savedefconfig to generate minimal
defconfig files.

Four of our patches are removed since the modifications have been
merged upstream. The new nconf configuration utility has appeared.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2010-09-01 12:26:49 +02:00

263 lines
5.6 KiB
C

/*
* Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
* Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
*
* Released under the terms of the GNU GPL v2.0.
*/
#include <string.h>
#include "lkc.h"
/* file already present in list? If not add it */
struct file *file_lookup(const char *name)
{
struct file *file;
for (file = file_list; file; file = file->next) {
if (!strcmp(name, file->name))
return file;
}
file = malloc(sizeof(*file));
memset(file, 0, sizeof(*file));
file->name = strdup(name);
file->next = file_list;
file_list = file;
return file;
}
static char* br2_symbol_printer(const char * const in)
{
ssize_t i, j, len = strlen(in);
char *ret;
if (len < 1)
return NULL;
ret = malloc(len);
if (!ret) {
printf("Out of memory!");
exit(1);
}
memset(ret, 0, len);
i = j = 0;
if (strncmp("BR2_", in, 4) == 0)
i += 4;
if (strncmp("PACKAGE_", in + i, 8) == 0)
i += 8;
else if (strncmp("TARGET_", in + i, 7) == 0)
i += 7;
while (i <= len)
ret[j++] = tolower(in[i++]);
return ret;
}
/* write dependencies of the infividual config-symbols */
static int write_make_deps(const char *name)
{
char *str;
char dir[PATH_MAX+1], buf[PATH_MAX+1], buf2[PATH_MAX+1];
struct menu *menu;
struct symbol *sym;
struct property *prop, *p;
unsigned done;
const char * const name_tmp = "..make.deps.tmp";
FILE *out;
if (!name)
name = ".auto.deps";
strcpy(dir, conf_get_configname());
str = strrchr(dir, '/');
if (str)
str[1] = 0;
else
dir[0] = 0;
sprintf(buf, "%s%s", dir, name_tmp);
out = fopen(buf, "w");
if (!out)
return 1;
fprintf(out, "# ATTENTION! This does not handle 'depends', just 'select'! \n"
"# See package/config/util.c write_make_deps()\n#\n");
menu = &rootmenu;//rootmenu.list;
while (menu) {
sym = menu->sym;
if (!sym) {
if (!menu_is_visible(menu))
goto next;
} else if (!(sym->flags & SYMBOL_CHOICE)) {
sym_calc_value(sym);
if (sym->type == S_BOOLEAN
&& sym_get_tristate_value(sym) != no) {
done = 0;
for_all_prompts(sym, prop) {
struct expr *e;
//printf("\nname=%s\n", sym->name);
for_all_properties(sym, p, P_SELECT) {
e = p->expr;
if (e && e->left.sym->name) {
if (!done) {
fprintf(out, "%s: $(BASE_TARGETS)", br2_symbol_printer(sym->name));
done = 1;
}
//printf("SELECTS %s\n",e->left.sym->name);
fprintf(out, " %s",br2_symbol_printer(e->left.sym->name));
}
}
if (done)
fprintf(out, "\n");
#if 0
e = sym->rev_dep.expr;
if (e && e->type == E_SYMBOL
&& e->left.sym->name) {
fprintf(out, "%s: %s", br2_symbol_printer(e->left.sym->name),
br2_symbol_printer(sym->name));
printf("%s is Selected BY: %s", sym->name, e->left.sym->name);
}
#endif
}
}
}
next:
if (menu->list) {
menu = menu->list;
continue;
}
if (menu->next)
menu = menu->next;
else while ((menu = menu->parent)) {
if (menu->next) {
menu = menu->next;
break;
}
}
}
fclose(out);
sprintf(buf2, "%s%s", dir, name);
rename(buf, buf2);
printf(_("#\n"
"# make dependencies written to %s\n"
"# ATTENTION buildroot devels!\n"
"# See top of this file before playing with this auto-preprequisites!\n"
"#\n"), name);
return 0;
}
/* write a dependency file as used by kbuild to track dependencies */
int file_write_dep(const char *name)
{
char *str;
char buf[PATH_MAX+1], buf2[PATH_MAX+1], dir[PATH_MAX+1];
struct symbol *sym, *env_sym;
struct expr *e;
struct file *file;
FILE *out;
if (!name)
name = ".kconfig.d";
strcpy(dir, conf_get_configname());
str = strrchr(dir, '/');
if (str)
str[1] = 0;
else
dir[0] = 0;
sprintf(buf, "%s..config.tmp", dir);
out = fopen(buf, "w");
if (!out)
return 1;
fprintf(out, "deps_config := \\\n");
for (file = file_list; file; file = file->next) {
if (file->next)
fprintf(out, "\t%s \\\n", file->name);
else
fprintf(out, "\t%s\n", file->name);
}
fprintf(out, "\n%s: \\\n"
"\t$(deps_config)\n\n", conf_get_autoconfig_name());
expr_list_for_each_sym(sym_env_list, e, sym) {
struct property *prop;
const char *value;
prop = sym_get_env_prop(sym);
env_sym = prop_get_symbol(prop);
if (!env_sym)
continue;
value = getenv(env_sym->name);
if (!value)
value = "";
fprintf(out, "ifneq \"$(%s)\" \"%s\"\n", env_sym->name, value);
fprintf(out, "%s: FORCE\n", conf_get_autoconfig_name());
fprintf(out, "endif\n");
}
fprintf(out, "\n$(deps_config): ;\n");
fclose(out);
sprintf(buf2, "%s%s", dir, name);
rename(buf, buf2);
return write_make_deps(NULL);
}
/* Allocate initial growable string */
struct gstr str_new(void)
{
struct gstr gs;
gs.s = malloc(sizeof(char) * 64);
gs.len = 64;
gs.max_width = 0;
strcpy(gs.s, "\0");
return gs;
}
/* Allocate and assign growable string */
struct gstr str_assign(const char *s)
{
struct gstr gs;
gs.s = strdup(s);
gs.len = strlen(s) + 1;
gs.max_width = 0;
return gs;
}
/* Free storage for growable string */
void str_free(struct gstr *gs)
{
if (gs->s)
free(gs->s);
gs->s = NULL;
gs->len = 0;
}
/* Append to growable string */
void str_append(struct gstr *gs, const char *s)
{
size_t l;
if (s) {
l = strlen(gs->s) + strlen(s) + 1;
if (l > gs->len) {
gs->s = realloc(gs->s, l);
gs->len = l;
}
strcat(gs->s, s);
}
}
/* Append printf formatted string to growable string */
void str_printf(struct gstr *gs, const char *fmt, ...)
{
va_list ap;
char s[10000]; /* big enough... */
va_start(ap, fmt);
vsnprintf(s, sizeof(s), fmt, ap);
str_append(gs, s);
va_end(ap);
}
/* Retrieve value of growable string */
const char *str_get(struct gstr *gs)
{
return gs->s;
}