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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2011-08-31 23:35:05 +0200
committerPeter Korsgaard <jacmet@sunsite.dk>2011-09-17 08:17:06 +0200
commit56da3859c770b83631ebae810dfb3024c1a9cbd2 (patch)
tree0f253485b64572a2ec87b6d91cd07f09d2fab652 /support/kconfig/util.c
parent59a326b934737483531c49c99acda7874c72e335 (diff)
support: move kconfig stuff from package/config to support/kconfig
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Diffstat (limited to 'support/kconfig/util.c')
-rw-r--r--support/kconfig/util.c265
1 files changed, 265 insertions, 0 deletions
diff --git a/support/kconfig/util.c b/support/kconfig/util.c
new file mode 100644
index 000000000..8a5efaa17
--- /dev/null
+++ b/support/kconfig/util.c
@@ -0,0 +1,265 @@
+/*
+ * 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;
+ const char *file_name = sym_expand_string_value(name);
+
+ for (file = file_list; file; file = file->next) {
+ if (!strcmp(name, file->name)) {
+ free((void *)file_name);
+ return file;
+ }
+ }
+
+ file = malloc(sizeof(*file));
+ memset(file, 0, sizeof(*file));
+ file->name = file_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+1);
+ if (!ret) {
+ printf("Out of memory!");
+ exit(1);
+ }
+ memset(ret, 0, len+1);
+ 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 individual 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 support/kconfig/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;
+}
+