diff options
Diffstat (limited to 'support/kconfig/util.c')
| -rw-r--r-- | support/kconfig/util.c | 265 |
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; +} + |