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![Tom Rini](/assets/img/avatar_default.png)
Align Kconfig and Kbuild logic to Linux 4.19 release with minimal impact
on files outside of this scope.
Our previous Kconfig sync was done by commit 5972ff077e
("kconfig /
kbuild: re-sync with Linux 4.18").
In this particular re-sync in order to keep clang support working a
number of related changes needed to be pulled in that had been missed
previously. Not all of these changes we easily traceable and so have
been omitted from the list below.
The imported Linux commits are:
[From prior to v4.18]
9f3f1fd29976 kbuild: Add __cc-option macro
d7f14c66c273 kbuild: Enable Large File Support for hostprogs
6d79a7b424a5 kbuild: suppress warnings from 'getconf LFS_*'
24403874316a Shared library support
86a9df597cdd kbuild: fix linker feature test macros when cross compiling with Clang
0294e6f4a000 kbuild: simplify ld-option implementation
[From v4.18 to v4.19]
96f14fe738b6 kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS
10844aebf448 kbuild: Rename HOSTCXXFLAGS to KBUILD_HOSTCXXFLAGS
b90a368000ab kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS
8377bd2b9ee1 kbuild: Rename HOST_LOADLIBES to KBUILD_HOSTLDLIBS
f92d19e0ef9b kbuild: Use HOST*FLAGS options from the command line
4ab3b80159d4 kconfig: check for pkg-config on make {menu,n,g,x}config
693359f7ac90 kconfig: rename SYMBOL_AUTO to SYMBOL_NO_WRITE
f60b992e30ff kbuild: replace $(LDFLAGS) $(ldflags-y) with $(ld_flags)
2fb9279f2c3e kbuild: change ld_flags to contain LDFLAGS_$(@F)
c931d34ea085 arm64: build with baremetal linker target instead of Linux when available
5accd7f3360e kconfig: handle format string before calling conf_message_callback()
a2ff4040151a kconfig: rename file_write_dep and move it to confdata.c
0608182ad542 kconfig: split out useful helpers in confdata.c
adc18acf42a1 kconfig: remove unneeded directory generation from local*config
79123b1389cc kconfig: create directories needed for syncconfig by itself
16952b77d8b5 kconfig: make syncconfig update .config regardless of sym_change_count
d6c6ab93e17f kbuild: remove deprecated host-progs variable
56869d45e364 kconfig: fix the rule of mainmenu_stmt symbol
c151272d1687 kconfig: remove unused sym_get_env_prop() function
1880861226c1 kconfig: remove P_ENV property type
e3fd9b5384f3 scripts/dtc: consolidate include path options in Makefile
4bf6a9af0e91 kconfig: add build-only configurator targets
f1575595d156 kconfig: error out when seeing recursive dependency
5e8c5299d315 kconfig: report recursive dependency involving 'imply'
f498926c47aa kconfig: improve the recursive dependency report
98a4afbfafd2 kconfig: fix "Can't open ..." in parallel build
9a9ddcf47831 kconfig: suppress "configuration written to .config" for syncconfig
87a32e624037 kbuild: pass LDFLAGS to recordmcount.pl
d503ac531a52 kbuild: rename LDFLAGS to KBUILD_LDFLAGS
217c3e019675 disable stringop truncation warnings for now
bc8d2e20a3eb kconfig: remove a spurious self-assignment
fd65465b7016 kconfig: do not require pkg-config on make {menu,n}config
5a4630aadb9a ftrace: Build with CPPFLAGS to get -Qunused-arguments
Note that this adds new cleanup work to do in that we should adapt the
shared library support we have to what is now upstream.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
1318 lines
27 KiB
C
1318 lines
27 KiB
C
/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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* Released under the terms of the GNU GPL v2.0.
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*/
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#include <sys/stat.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "lkc.h"
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/* return true if 'path' exists, false otherwise */
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static bool is_present(const char *path)
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{
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struct stat st;
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return !stat(path, &st);
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}
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/* return true if 'path' exists and it is a directory, false otherwise */
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static bool is_dir(const char *path)
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{
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struct stat st;
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if (stat(path, &st))
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return 0;
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return S_ISDIR(st.st_mode);
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}
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/*
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* Create the parent directory of the given path.
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*
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* For example, if 'include/config/auto.conf' is given, create 'include/config'.
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*/
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static int make_parent_dir(const char *path)
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{
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char tmp[PATH_MAX + 1];
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char *p;
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strncpy(tmp, path, sizeof(tmp));
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tmp[sizeof(tmp) - 1] = 0;
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/* Remove the base name. Just return if nothing is left */
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p = strrchr(tmp, '/');
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if (!p)
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return 0;
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*(p + 1) = 0;
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/* Just in case it is an absolute path */
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p = tmp;
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while (*p == '/')
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p++;
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while ((p = strchr(p, '/'))) {
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*p = 0;
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/* skip if the directory exists */
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if (!is_dir(tmp) && mkdir(tmp, 0755))
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return -1;
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*p = '/';
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while (*p == '/')
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p++;
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}
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return 0;
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}
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struct conf_printer {
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void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
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void (*print_comment)(FILE *, const char *, void *);
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};
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static void conf_warning(const char *fmt, ...)
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__attribute__ ((format (printf, 1, 2)));
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static void conf_message(const char *fmt, ...)
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__attribute__ ((format (printf, 1, 2)));
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static const char *conf_filename;
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static int conf_lineno, conf_warnings;
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const char conf_defname[] = "arch/$(ARCH)/defconfig";
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static void conf_warning(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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conf_warnings++;
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}
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static void conf_default_message_callback(const char *s)
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{
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printf("#\n# ");
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printf("%s", s);
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printf("\n#\n");
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}
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static void (*conf_message_callback)(const char *s) =
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conf_default_message_callback;
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void conf_set_message_callback(void (*fn)(const char *s))
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{
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conf_message_callback = fn;
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}
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static void conf_message(const char *fmt, ...)
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{
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va_list ap;
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char buf[4096];
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if (!conf_message_callback)
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return;
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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conf_message_callback(buf);
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va_end(ap);
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}
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const char *conf_get_configname(void)
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{
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char *name = getenv("KCONFIG_CONFIG");
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return name ? name : ".config";
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}
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const char *conf_get_autoconfig_name(void)
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{
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char *name = getenv("KCONFIG_AUTOCONFIG");
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return name ? name : "include/config/auto.conf";
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}
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char *conf_get_default_confname(void)
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{
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static char fullname[PATH_MAX+1];
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char *env, *name;
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name = expand_string(conf_defname);
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env = getenv(SRCTREE);
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if (env) {
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sprintf(fullname, "%s/%s", env, name);
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if (is_present(fullname))
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return fullname;
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}
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return name;
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}
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static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
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{
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char *p2;
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switch (sym->type) {
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case S_TRISTATE:
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if (p[0] == 'm') {
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sym->def[def].tri = mod;
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sym->flags |= def_flags;
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break;
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}
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/* fall through */
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case S_BOOLEAN:
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if (p[0] == 'y') {
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sym->def[def].tri = yes;
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sym->flags |= def_flags;
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break;
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}
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if (p[0] == 'n') {
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sym->def[def].tri = no;
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sym->flags |= def_flags;
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break;
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}
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if (def != S_DEF_AUTO)
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conf_warning("symbol value '%s' invalid for %s",
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p, sym->name);
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return 1;
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case S_OTHER:
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if (*p != '"') {
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for (p2 = p; *p2 && !isspace(*p2); p2++)
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;
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sym->type = S_STRING;
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goto done;
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}
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/* fall through */
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case S_STRING:
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if (*p++ != '"')
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break;
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/* Last char has to be a '"' */
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if (p[strlen(p) - 1] != '"') {
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if (def != S_DEF_AUTO)
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conf_warning("invalid string found");
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return 1;
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}
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/* Overwrite '"' with \0 for string termination */
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p[strlen(p) - 1] = 0;
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/* fall through */
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case S_INT:
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case S_HEX:
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done:
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if (sym_string_valid(sym, p)) {
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sym->def[def].val = xstrdup(p);
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sym->flags |= def_flags;
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} else {
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if (def != S_DEF_AUTO)
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conf_warning("symbol value '%s' invalid for %s",
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p, sym->name);
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return 1;
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}
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break;
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default:
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;
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}
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return 0;
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}
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#define LINE_GROWTH 16
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static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
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{
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char *nline;
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size_t new_size = slen + 1;
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if (new_size > *n) {
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new_size += LINE_GROWTH - 1;
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new_size *= 2;
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nline = xrealloc(*lineptr, new_size);
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if (!nline)
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return -1;
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*lineptr = nline;
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*n = new_size;
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}
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(*lineptr)[slen] = c;
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return 0;
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}
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static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
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{
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char *line = *lineptr;
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size_t slen = 0;
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for (;;) {
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int c = getc(stream);
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switch (c) {
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case '\n':
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if (add_byte(c, &line, slen, n) < 0)
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goto e_out;
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slen++;
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/* fall through */
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case EOF:
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if (add_byte('\0', &line, slen, n) < 0)
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goto e_out;
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*lineptr = line;
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if (slen == 0)
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return -1;
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return slen;
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default:
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if (add_byte(c, &line, slen, n) < 0)
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goto e_out;
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slen++;
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}
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}
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e_out:
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line[slen-1] = '\0';
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*lineptr = line;
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return -1;
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}
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int conf_read_simple(const char *name, int def)
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{
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FILE *in = NULL;
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char *line = NULL;
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size_t line_asize = 0;
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char *p, *p2;
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struct symbol *sym;
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int i, def_flags;
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if (name) {
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in = zconf_fopen(name);
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} else {
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struct property *prop;
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name = conf_get_configname();
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in = zconf_fopen(name);
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if (in)
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goto load;
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sym_add_change_count(1);
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if (!sym_defconfig_list)
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return 1;
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for_all_defaults(sym_defconfig_list, prop) {
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if (expr_calc_value(prop->visible.expr) == no ||
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prop->expr->type != E_SYMBOL)
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continue;
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sym_calc_value(prop->expr->left.sym);
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name = sym_get_string_value(prop->expr->left.sym);
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in = zconf_fopen(name);
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if (in) {
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conf_message("using defaults found in %s",
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name);
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goto load;
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}
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}
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}
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if (!in)
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return 1;
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load:
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conf_filename = name;
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conf_lineno = 0;
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conf_warnings = 0;
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def_flags = SYMBOL_DEF << def;
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for_all_symbols(i, sym) {
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sym->flags |= SYMBOL_CHANGED;
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sym->flags &= ~(def_flags|SYMBOL_VALID);
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if (sym_is_choice(sym))
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sym->flags |= def_flags;
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switch (sym->type) {
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case S_INT:
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case S_HEX:
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case S_STRING:
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if (sym->def[def].val)
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free(sym->def[def].val);
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/* fall through */
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default:
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sym->def[def].val = NULL;
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sym->def[def].tri = no;
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}
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}
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while (compat_getline(&line, &line_asize, in) != -1) {
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conf_lineno++;
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sym = NULL;
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if (line[0] == '#') {
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if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
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continue;
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p = strchr(line + 2 + strlen(CONFIG_), ' ');
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if (!p)
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continue;
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*p++ = 0;
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if (strncmp(p, "is not set", 10))
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continue;
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if (def == S_DEF_USER) {
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sym = sym_find(line + 2 + strlen(CONFIG_));
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if (!sym) {
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sym_add_change_count(1);
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goto setsym;
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}
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} else {
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sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
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if (sym->type == S_UNKNOWN)
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sym->type = S_BOOLEAN;
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}
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if (sym->flags & def_flags) {
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conf_warning("override: reassigning to symbol %s", sym->name);
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}
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switch (sym->type) {
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case S_BOOLEAN:
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case S_TRISTATE:
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sym->def[def].tri = no;
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sym->flags |= def_flags;
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break;
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default:
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;
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}
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} else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
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p = strchr(line + strlen(CONFIG_), '=');
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if (!p)
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continue;
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*p++ = 0;
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p2 = strchr(p, '\n');
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if (p2) {
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*p2-- = 0;
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if (*p2 == '\r')
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*p2 = 0;
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}
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if (def == S_DEF_USER) {
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sym = sym_find(line + strlen(CONFIG_));
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if (!sym) {
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sym_add_change_count(1);
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goto setsym;
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}
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} else {
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sym = sym_lookup(line + strlen(CONFIG_), 0);
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if (sym->type == S_UNKNOWN)
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sym->type = S_OTHER;
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}
|
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if (sym->flags & def_flags) {
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conf_warning("override: reassigning to symbol %s", sym->name);
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}
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if (conf_set_sym_val(sym, def, def_flags, p))
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continue;
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} else {
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if (line[0] != '\r' && line[0] != '\n')
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conf_warning("unexpected data: %.*s",
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(int)strcspn(line, "\r\n"), line);
|
|
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continue;
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}
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|
setsym:
|
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if (sym && sym_is_choice_value(sym)) {
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struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
|
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switch (sym->def[def].tri) {
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case no:
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break;
|
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case mod:
|
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if (cs->def[def].tri == yes) {
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conf_warning("%s creates inconsistent choice state", sym->name);
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cs->flags &= ~def_flags;
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}
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break;
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case yes:
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if (cs->def[def].tri != no)
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conf_warning("override: %s changes choice state", sym->name);
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cs->def[def].val = sym;
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break;
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}
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cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
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}
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}
|
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free(line);
|
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fclose(in);
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return 0;
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}
|
|
|
|
int conf_read(const char *name)
|
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{
|
|
struct symbol *sym;
|
|
int conf_unsaved = 0;
|
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int i;
|
|
|
|
sym_set_change_count(0);
|
|
|
|
if (conf_read_simple(name, S_DEF_USER)) {
|
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sym_calc_value(modules_sym);
|
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return 1;
|
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}
|
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|
|
sym_calc_value(modules_sym);
|
|
|
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for_all_symbols(i, sym) {
|
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sym_calc_value(sym);
|
|
if (sym_is_choice(sym) || (sym->flags & SYMBOL_NO_WRITE))
|
|
continue;
|
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if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
|
|
/* check that calculated value agrees with saved value */
|
|
switch (sym->type) {
|
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case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
|
|
break;
|
|
if (!sym_is_choice(sym))
|
|
continue;
|
|
/* fall through */
|
|
default:
|
|
if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
|
|
continue;
|
|
break;
|
|
}
|
|
} else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
|
|
/* no previous value and not saved */
|
|
continue;
|
|
conf_unsaved++;
|
|
/* maybe print value in verbose mode... */
|
|
}
|
|
|
|
for_all_symbols(i, sym) {
|
|
if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
|
|
/* Reset values of generates values, so they'll appear
|
|
* as new, if they should become visible, but that
|
|
* doesn't quite work if the Kconfig and the saved
|
|
* configuration disagree.
|
|
*/
|
|
if (sym->visible == no && !conf_unsaved)
|
|
sym->flags &= ~SYMBOL_DEF_USER;
|
|
switch (sym->type) {
|
|
case S_STRING:
|
|
case S_INT:
|
|
case S_HEX:
|
|
/* Reset a string value if it's out of range */
|
|
if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
|
|
break;
|
|
sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
|
|
conf_unsaved++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
sym_add_change_count(conf_warnings || conf_unsaved);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Kconfig configuration printer
|
|
*
|
|
* This printer is used when generating the resulting configuration after
|
|
* kconfig invocation and `defconfig' files. Unset symbol might be omitted by
|
|
* passing a non-NULL argument to the printer.
|
|
*
|
|
*/
|
|
static void
|
|
kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
|
|
{
|
|
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
if (*value == 'n') {
|
|
bool skip_unset = (arg != NULL);
|
|
|
|
if (!skip_unset)
|
|
fprintf(fp, "# %s%s is not set\n",
|
|
CONFIG_, sym->name);
|
|
return;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
|
|
}
|
|
|
|
static void
|
|
kconfig_print_comment(FILE *fp, const char *value, void *arg)
|
|
{
|
|
const char *p = value;
|
|
size_t l;
|
|
|
|
for (;;) {
|
|
l = strcspn(p, "\n");
|
|
fprintf(fp, "#");
|
|
if (l) {
|
|
fprintf(fp, " ");
|
|
xfwrite(p, l, 1, fp);
|
|
p += l;
|
|
}
|
|
fprintf(fp, "\n");
|
|
if (*p++ == '\0')
|
|
break;
|
|
}
|
|
}
|
|
|
|
static struct conf_printer kconfig_printer_cb =
|
|
{
|
|
.print_symbol = kconfig_print_symbol,
|
|
.print_comment = kconfig_print_comment,
|
|
};
|
|
|
|
/*
|
|
* Header printer
|
|
*
|
|
* This printer is used when generating the `include/generated/autoconf.h' file.
|
|
*/
|
|
static void
|
|
header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
|
|
{
|
|
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE: {
|
|
const char *suffix = "";
|
|
|
|
switch (*value) {
|
|
case 'n':
|
|
break;
|
|
case 'm':
|
|
suffix = "_MODULE";
|
|
/* fall through */
|
|
default:
|
|
fprintf(fp, "#define %s%s%s 1\n",
|
|
CONFIG_, sym->name, suffix);
|
|
}
|
|
break;
|
|
}
|
|
case S_HEX: {
|
|
const char *prefix = "";
|
|
|
|
if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
|
|
prefix = "0x";
|
|
fprintf(fp, "#define %s%s %s%s\n",
|
|
CONFIG_, sym->name, prefix, value);
|
|
break;
|
|
}
|
|
case S_STRING:
|
|
case S_INT:
|
|
fprintf(fp, "#define %s%s %s\n",
|
|
CONFIG_, sym->name, value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
header_print_comment(FILE *fp, const char *value, void *arg)
|
|
{
|
|
const char *p = value;
|
|
size_t l;
|
|
|
|
fprintf(fp, "/*\n");
|
|
for (;;) {
|
|
l = strcspn(p, "\n");
|
|
fprintf(fp, " *");
|
|
if (l) {
|
|
fprintf(fp, " ");
|
|
xfwrite(p, l, 1, fp);
|
|
p += l;
|
|
}
|
|
fprintf(fp, "\n");
|
|
if (*p++ == '\0')
|
|
break;
|
|
}
|
|
fprintf(fp, " */\n");
|
|
}
|
|
|
|
static struct conf_printer header_printer_cb =
|
|
{
|
|
.print_symbol = header_print_symbol,
|
|
.print_comment = header_print_comment,
|
|
};
|
|
|
|
/*
|
|
* Tristate printer
|
|
*
|
|
* This printer is used when generating the `include/config/tristate.conf' file.
|
|
*/
|
|
static void
|
|
tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
|
|
{
|
|
|
|
if (sym->type == S_TRISTATE && *value != 'n')
|
|
fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
|
|
}
|
|
|
|
static struct conf_printer tristate_printer_cb =
|
|
{
|
|
.print_symbol = tristate_print_symbol,
|
|
.print_comment = kconfig_print_comment,
|
|
};
|
|
|
|
static void conf_write_symbol(FILE *fp, struct symbol *sym,
|
|
struct conf_printer *printer, void *printer_arg)
|
|
{
|
|
const char *str;
|
|
char *str2;
|
|
|
|
switch (sym->type) {
|
|
case S_OTHER:
|
|
case S_UNKNOWN:
|
|
break;
|
|
case S_STRING:
|
|
str = sym_get_string_value(sym);
|
|
str2 = xmalloc(strlen(str) + 3);
|
|
sprintf(str2, "\"%s\"", str);
|
|
printer->print_symbol(fp, sym, str2, printer_arg);
|
|
free((void *)str2);
|
|
break;
|
|
default:
|
|
str = sym_get_string_value(sym);
|
|
printer->print_symbol(fp, sym, str, printer_arg);
|
|
}
|
|
}
|
|
|
|
static void
|
|
conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
|
|
{
|
|
char buf[256];
|
|
|
|
snprintf(buf, sizeof(buf),
|
|
"\n"
|
|
"Automatically generated file; DO NOT EDIT.\n"
|
|
"%s\n",
|
|
rootmenu.prompt->text);
|
|
|
|
printer->print_comment(fp, buf, printer_arg);
|
|
}
|
|
|
|
/*
|
|
* Write out a minimal config.
|
|
* All values that has default values are skipped as this is redundant.
|
|
*/
|
|
int conf_write_defconfig(const char *filename)
|
|
{
|
|
struct symbol *sym;
|
|
struct menu *menu;
|
|
FILE *out;
|
|
|
|
out = fopen(filename, "w");
|
|
if (!out)
|
|
return 1;
|
|
|
|
sym_clear_all_valid();
|
|
|
|
/* Traverse all menus to find all relevant symbols */
|
|
menu = rootmenu.list;
|
|
|
|
while (menu != NULL)
|
|
{
|
|
sym = menu->sym;
|
|
if (sym == NULL) {
|
|
if (!menu_is_visible(menu))
|
|
goto next_menu;
|
|
} else if (!sym_is_choice(sym)) {
|
|
sym_calc_value(sym);
|
|
if (!(sym->flags & SYMBOL_WRITE))
|
|
goto next_menu;
|
|
sym->flags &= ~SYMBOL_WRITE;
|
|
/* If we cannot change the symbol - skip */
|
|
if (!sym_is_changable(sym))
|
|
goto next_menu;
|
|
/* If symbol equals to default value - skip */
|
|
if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
|
|
goto next_menu;
|
|
|
|
/*
|
|
* If symbol is a choice value and equals to the
|
|
* default for a choice - skip.
|
|
* But only if value is bool and equal to "y" and
|
|
* choice is not "optional".
|
|
* (If choice is "optional" then all values can be "n")
|
|
*/
|
|
if (sym_is_choice_value(sym)) {
|
|
struct symbol *cs;
|
|
struct symbol *ds;
|
|
|
|
cs = prop_get_symbol(sym_get_choice_prop(sym));
|
|
ds = sym_choice_default(cs);
|
|
if (!sym_is_optional(cs) && sym == ds) {
|
|
if ((sym->type == S_BOOLEAN) &&
|
|
sym_get_tristate_value(sym) == yes)
|
|
goto next_menu;
|
|
}
|
|
}
|
|
conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
|
|
}
|
|
next_menu:
|
|
if (menu->list != NULL) {
|
|
menu = menu->list;
|
|
}
|
|
else if (menu->next != NULL) {
|
|
menu = menu->next;
|
|
} else {
|
|
while ((menu = menu->parent)) {
|
|
if (menu->next != NULL) {
|
|
menu = menu->next;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
fclose(out);
|
|
return 0;
|
|
}
|
|
|
|
int conf_write(const char *name)
|
|
{
|
|
FILE *out;
|
|
struct symbol *sym;
|
|
struct menu *menu;
|
|
const char *basename;
|
|
const char *str;
|
|
char dirname[PATH_MAX+1], tmpname[PATH_MAX+22], newname[PATH_MAX+8];
|
|
char *env;
|
|
|
|
dirname[0] = 0;
|
|
if (name && name[0]) {
|
|
char *slash;
|
|
|
|
if (is_dir(name)) {
|
|
strcpy(dirname, name);
|
|
strcat(dirname, "/");
|
|
basename = conf_get_configname();
|
|
} else if ((slash = strrchr(name, '/'))) {
|
|
int size = slash - name + 1;
|
|
memcpy(dirname, name, size);
|
|
dirname[size] = 0;
|
|
if (slash[1])
|
|
basename = slash + 1;
|
|
else
|
|
basename = conf_get_configname();
|
|
} else
|
|
basename = name;
|
|
} else
|
|
basename = conf_get_configname();
|
|
|
|
sprintf(newname, "%s%s", dirname, basename);
|
|
env = getenv("KCONFIG_OVERWRITECONFIG");
|
|
if (!env || !*env) {
|
|
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
|
|
out = fopen(tmpname, "w");
|
|
} else {
|
|
*tmpname = 0;
|
|
out = fopen(newname, "w");
|
|
}
|
|
if (!out)
|
|
return 1;
|
|
|
|
conf_write_heading(out, &kconfig_printer_cb, NULL);
|
|
|
|
if (!conf_get_changed())
|
|
sym_clear_all_valid();
|
|
|
|
menu = rootmenu.list;
|
|
while (menu) {
|
|
sym = menu->sym;
|
|
if (!sym) {
|
|
if (!menu_is_visible(menu))
|
|
goto next;
|
|
str = menu_get_prompt(menu);
|
|
fprintf(out, "\n"
|
|
"#\n"
|
|
"# %s\n"
|
|
"#\n", str);
|
|
} else if (!(sym->flags & SYMBOL_CHOICE)) {
|
|
sym_calc_value(sym);
|
|
if (!(sym->flags & SYMBOL_WRITE))
|
|
goto next;
|
|
sym->flags &= ~SYMBOL_WRITE;
|
|
|
|
conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
|
|
}
|
|
|
|
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);
|
|
|
|
if (*tmpname) {
|
|
strcat(dirname, basename);
|
|
strcat(dirname, ".old");
|
|
rename(newname, dirname);
|
|
if (rename(tmpname, newname))
|
|
return 1;
|
|
}
|
|
|
|
conf_message("configuration written to %s", newname);
|
|
|
|
sym_set_change_count(0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* write a dependency file as used by kbuild to track dependencies */
|
|
static int conf_write_dep(const char *name)
|
|
{
|
|
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());
|
|
|
|
env_write_dep(out, conf_get_autoconfig_name());
|
|
|
|
fprintf(out, "\n$(deps_config): ;\n");
|
|
fclose(out);
|
|
|
|
if (make_parent_dir(name))
|
|
return 1;
|
|
rename("..config.tmp", name);
|
|
return 0;
|
|
}
|
|
|
|
static int conf_split_config(void)
|
|
{
|
|
const char *name;
|
|
char path[PATH_MAX+1];
|
|
char *s, *d, c;
|
|
struct symbol *sym;
|
|
int res, i, fd;
|
|
|
|
name = conf_get_autoconfig_name();
|
|
conf_read_simple(name, S_DEF_AUTO);
|
|
sym_calc_value(modules_sym);
|
|
|
|
if (make_parent_dir("include/config/foo.h"))
|
|
return 1;
|
|
if (chdir("include/config"))
|
|
return 1;
|
|
|
|
res = 0;
|
|
for_all_symbols(i, sym) {
|
|
sym_calc_value(sym);
|
|
if ((sym->flags & SYMBOL_NO_WRITE) || !sym->name)
|
|
continue;
|
|
if (sym->flags & SYMBOL_WRITE) {
|
|
if (sym->flags & SYMBOL_DEF_AUTO) {
|
|
/*
|
|
* symbol has old and new value,
|
|
* so compare them...
|
|
*/
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
if (sym_get_tristate_value(sym) ==
|
|
sym->def[S_DEF_AUTO].tri)
|
|
continue;
|
|
break;
|
|
case S_STRING:
|
|
case S_HEX:
|
|
case S_INT:
|
|
if (!strcmp(sym_get_string_value(sym),
|
|
sym->def[S_DEF_AUTO].val))
|
|
continue;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
/*
|
|
* If there is no old value, only 'no' (unset)
|
|
* is allowed as new value.
|
|
*/
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
if (sym_get_tristate_value(sym) == no)
|
|
continue;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
} else if (!(sym->flags & SYMBOL_DEF_AUTO))
|
|
/* There is neither an old nor a new value. */
|
|
continue;
|
|
/* else
|
|
* There is an old value, but no new value ('no' (unset)
|
|
* isn't saved in auto.conf, so the old value is always
|
|
* different from 'no').
|
|
*/
|
|
|
|
/* Replace all '_' and append ".h" */
|
|
s = sym->name;
|
|
d = path;
|
|
while ((c = *s++)) {
|
|
c = tolower(c);
|
|
*d++ = (c == '_') ? '/' : c;
|
|
}
|
|
strcpy(d, ".h");
|
|
|
|
/* Assume directory path already exists. */
|
|
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
|
if (fd == -1) {
|
|
if (errno != ENOENT) {
|
|
res = 1;
|
|
break;
|
|
}
|
|
|
|
if (make_parent_dir(path)) {
|
|
res = 1;
|
|
goto out;
|
|
}
|
|
|
|
/* Try it again. */
|
|
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
|
if (fd == -1) {
|
|
res = 1;
|
|
break;
|
|
}
|
|
}
|
|
close(fd);
|
|
}
|
|
out:
|
|
if (chdir("../.."))
|
|
return 1;
|
|
|
|
return res;
|
|
}
|
|
|
|
int conf_write_autoconf(void)
|
|
{
|
|
struct symbol *sym;
|
|
const char *name;
|
|
FILE *out, *tristate, *out_h;
|
|
int i;
|
|
|
|
sym_clear_all_valid();
|
|
|
|
conf_write_dep("include/config/auto.conf.cmd");
|
|
|
|
if (conf_split_config())
|
|
return 1;
|
|
|
|
out = fopen(".tmpconfig", "w");
|
|
if (!out)
|
|
return 1;
|
|
|
|
tristate = fopen(".tmpconfig_tristate", "w");
|
|
if (!tristate) {
|
|
fclose(out);
|
|
return 1;
|
|
}
|
|
|
|
out_h = fopen(".tmpconfig.h", "w");
|
|
if (!out_h) {
|
|
fclose(out);
|
|
fclose(tristate);
|
|
return 1;
|
|
}
|
|
|
|
conf_write_heading(out, &kconfig_printer_cb, NULL);
|
|
|
|
conf_write_heading(tristate, &tristate_printer_cb, NULL);
|
|
|
|
conf_write_heading(out_h, &header_printer_cb, NULL);
|
|
|
|
for_all_symbols(i, sym) {
|
|
sym_calc_value(sym);
|
|
if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
|
|
continue;
|
|
|
|
/* write symbol to auto.conf, tristate and header files */
|
|
conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
|
|
|
|
conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
|
|
|
|
conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
|
|
}
|
|
fclose(out);
|
|
fclose(tristate);
|
|
fclose(out_h);
|
|
|
|
name = getenv("KCONFIG_AUTOHEADER");
|
|
if (!name)
|
|
name = "include/generated/autoconf.h";
|
|
if (make_parent_dir(name))
|
|
return 1;
|
|
if (rename(".tmpconfig.h", name))
|
|
return 1;
|
|
|
|
name = getenv("KCONFIG_TRISTATE");
|
|
if (!name)
|
|
name = "include/config/tristate.conf";
|
|
if (make_parent_dir(name))
|
|
return 1;
|
|
if (rename(".tmpconfig_tristate", name))
|
|
return 1;
|
|
|
|
name = conf_get_autoconfig_name();
|
|
if (make_parent_dir(name))
|
|
return 1;
|
|
/*
|
|
* This must be the last step, kbuild has a dependency on auto.conf
|
|
* and this marks the successful completion of the previous steps.
|
|
*/
|
|
if (rename(".tmpconfig", name))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sym_change_count;
|
|
static void (*conf_changed_callback)(void);
|
|
|
|
void sym_set_change_count(int count)
|
|
{
|
|
int _sym_change_count = sym_change_count;
|
|
sym_change_count = count;
|
|
if (conf_changed_callback &&
|
|
(bool)_sym_change_count != (bool)count)
|
|
conf_changed_callback();
|
|
}
|
|
|
|
void sym_add_change_count(int count)
|
|
{
|
|
sym_set_change_count(count + sym_change_count);
|
|
}
|
|
|
|
bool conf_get_changed(void)
|
|
{
|
|
return sym_change_count;
|
|
}
|
|
|
|
void conf_set_changed_callback(void (*fn)(void))
|
|
{
|
|
conf_changed_callback = fn;
|
|
}
|
|
|
|
static bool randomize_choice_values(struct symbol *csym)
|
|
{
|
|
struct property *prop;
|
|
struct symbol *sym;
|
|
struct expr *e;
|
|
int cnt, def;
|
|
|
|
/*
|
|
* If choice is mod then we may have more items selected
|
|
* and if no then no-one.
|
|
* In both cases stop.
|
|
*/
|
|
if (csym->curr.tri != yes)
|
|
return false;
|
|
|
|
prop = sym_get_choice_prop(csym);
|
|
|
|
/* count entries in choice block */
|
|
cnt = 0;
|
|
expr_list_for_each_sym(prop->expr, e, sym)
|
|
cnt++;
|
|
|
|
/*
|
|
* find a random value and set it to yes,
|
|
* set the rest to no so we have only one set
|
|
*/
|
|
def = (rand() % cnt);
|
|
|
|
cnt = 0;
|
|
expr_list_for_each_sym(prop->expr, e, sym) {
|
|
if (def == cnt++) {
|
|
sym->def[S_DEF_USER].tri = yes;
|
|
csym->def[S_DEF_USER].val = sym;
|
|
}
|
|
else {
|
|
sym->def[S_DEF_USER].tri = no;
|
|
}
|
|
sym->flags |= SYMBOL_DEF_USER;
|
|
/* clear VALID to get value calculated */
|
|
sym->flags &= ~SYMBOL_VALID;
|
|
}
|
|
csym->flags |= SYMBOL_DEF_USER;
|
|
/* clear VALID to get value calculated */
|
|
csym->flags &= ~(SYMBOL_VALID);
|
|
|
|
return true;
|
|
}
|
|
|
|
void set_all_choice_values(struct symbol *csym)
|
|
{
|
|
struct property *prop;
|
|
struct symbol *sym;
|
|
struct expr *e;
|
|
|
|
prop = sym_get_choice_prop(csym);
|
|
|
|
/*
|
|
* Set all non-assinged choice values to no
|
|
*/
|
|
expr_list_for_each_sym(prop->expr, e, sym) {
|
|
if (!sym_has_value(sym))
|
|
sym->def[S_DEF_USER].tri = no;
|
|
}
|
|
csym->flags |= SYMBOL_DEF_USER;
|
|
/* clear VALID to get value calculated */
|
|
csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
|
|
}
|
|
|
|
bool conf_set_all_new_symbols(enum conf_def_mode mode)
|
|
{
|
|
struct symbol *sym, *csym;
|
|
int i, cnt, pby, pty, ptm; /* pby: probability of bool = y
|
|
* pty: probability of tristate = y
|
|
* ptm: probability of tristate = m
|
|
*/
|
|
|
|
pby = 50; pty = ptm = 33; /* can't go as the default in switch-case
|
|
* below, otherwise gcc whines about
|
|
* -Wmaybe-uninitialized */
|
|
if (mode == def_random) {
|
|
int n, p[3];
|
|
char *env = getenv("KCONFIG_PROBABILITY");
|
|
n = 0;
|
|
while( env && *env ) {
|
|
char *endp;
|
|
int tmp = strtol( env, &endp, 10 );
|
|
if( tmp >= 0 && tmp <= 100 ) {
|
|
p[n++] = tmp;
|
|
} else {
|
|
errno = ERANGE;
|
|
perror( "KCONFIG_PROBABILITY" );
|
|
exit( 1 );
|
|
}
|
|
env = (*endp == ':') ? endp+1 : endp;
|
|
if( n >=3 ) {
|
|
break;
|
|
}
|
|
}
|
|
switch( n ) {
|
|
case 1:
|
|
pby = p[0]; ptm = pby/2; pty = pby-ptm;
|
|
break;
|
|
case 2:
|
|
pty = p[0]; ptm = p[1]; pby = pty + ptm;
|
|
break;
|
|
case 3:
|
|
pby = p[0]; pty = p[1]; ptm = p[2];
|
|
break;
|
|
}
|
|
|
|
if( pty+ptm > 100 ) {
|
|
errno = ERANGE;
|
|
perror( "KCONFIG_PROBABILITY" );
|
|
exit( 1 );
|
|
}
|
|
}
|
|
bool has_changed = false;
|
|
|
|
for_all_symbols(i, sym) {
|
|
if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID))
|
|
continue;
|
|
switch (sym_get_type(sym)) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
has_changed = true;
|
|
switch (mode) {
|
|
case def_yes:
|
|
sym->def[S_DEF_USER].tri = yes;
|
|
break;
|
|
case def_mod:
|
|
sym->def[S_DEF_USER].tri = mod;
|
|
break;
|
|
case def_no:
|
|
if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
|
|
sym->def[S_DEF_USER].tri = yes;
|
|
else
|
|
sym->def[S_DEF_USER].tri = no;
|
|
break;
|
|
case def_random:
|
|
sym->def[S_DEF_USER].tri = no;
|
|
cnt = rand() % 100;
|
|
if (sym->type == S_TRISTATE) {
|
|
if (cnt < pty)
|
|
sym->def[S_DEF_USER].tri = yes;
|
|
else if (cnt < (pty+ptm))
|
|
sym->def[S_DEF_USER].tri = mod;
|
|
} else if (cnt < pby)
|
|
sym->def[S_DEF_USER].tri = yes;
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
if (!(sym_is_choice(sym) && mode == def_random))
|
|
sym->flags |= SYMBOL_DEF_USER;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
sym_clear_all_valid();
|
|
|
|
/*
|
|
* We have different type of choice blocks.
|
|
* If curr.tri equals to mod then we can select several
|
|
* choice symbols in one block.
|
|
* In this case we do nothing.
|
|
* If curr.tri equals yes then only one symbol can be
|
|
* selected in a choice block and we set it to yes,
|
|
* and the rest to no.
|
|
*/
|
|
if (mode != def_random) {
|
|
for_all_symbols(i, csym) {
|
|
if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
|
|
sym_is_choice_value(csym))
|
|
csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
|
|
}
|
|
}
|
|
|
|
for_all_symbols(i, csym) {
|
|
if (sym_has_value(csym) || !sym_is_choice(csym))
|
|
continue;
|
|
|
|
sym_calc_value(csym);
|
|
if (mode == def_random)
|
|
has_changed = randomize_choice_values(csym);
|
|
else {
|
|
set_all_choice_values(csym);
|
|
has_changed = true;
|
|
}
|
|
}
|
|
|
|
return has_changed;
|
|
}
|