diff options
Diffstat (limited to 'scripts/config/util.c')
| -rw-r--r-- | scripts/config/util.c | 86 |
1 files changed, 52 insertions, 34 deletions
diff --git a/scripts/config/util.c b/scripts/config/util.c index 29585394df..0e76042473 100644 --- a/scripts/config/util.c +++ b/scripts/config/util.c @@ -1,7 +1,8 @@ -// SPDX-License-Identifier: GPL-2.0 /* * 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 <stdarg.h> @@ -13,21 +14,69 @@ 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 = xmalloc(sizeof(*file)); memset(file, 0, sizeof(*file)); - file->name = xstrdup(name); + file->name = file_name; file->next = file_list; file_list = file; return file; } +/* write a dependency file as used by kbuild to track dependencies */ +int file_write_dep(const char *name) +{ + struct symbol *sym, *env_sym; + struct expr *e; + struct file *file; + FILE *out; + + if (!name) + name = ".kconfig.d"; + out = fopen("..config.tmp", "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); + rename("..config.tmp", name); + return 0; +} + + /* Allocate initial growable string */ struct gstr str_new(void) { @@ -55,7 +104,7 @@ void str_append(struct gstr *gs, const char *s) if (s) { l = strlen(gs->s) + strlen(s) + 1; if (l > gs->len) { - gs->s = xrealloc(gs->s, l); + gs->s = realloc(gs->s, l); gs->len = l; } strcat(gs->s, s); @@ -96,34 +145,3 @@ void *xcalloc(size_t nmemb, size_t size) fprintf(stderr, "Out of memory.\n"); exit(1); } - -void *xrealloc(void *p, size_t size) -{ - p = realloc(p, size); - if (p) - return p; - fprintf(stderr, "Out of memory.\n"); - exit(1); -} - -char *xstrdup(const char *s) -{ - char *p; - - p = strdup(s); - if (p) - return p; - fprintf(stderr, "Out of memory.\n"); - exit(1); -} - -char *xstrndup(const char *s, size_t n) -{ - char *p; - - p = strndup(s, n); - if (p) - return p; - fprintf(stderr, "Out of memory.\n"); - exit(1); -} |