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-rw-r--r--scripts/kconfig/conf.c16
-rw-r--r--scripts/kconfig/confdata.c177
-rw-r--r--scripts/kconfig/lkc_proto.h1
-rw-r--r--scripts/kconfig/util.c4
4 files changed, 143 insertions, 55 deletions
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 8012d1076876..9334da65f364 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -599,7 +599,15 @@ int main(int ac, char **av)
input_mode = ask_silent;
valid_stdin = 1;
}
- }
+ } else if (sym_change_count) {
+ name = getenv("KCONFIG_NOSILENTUPDATE");
+ if (name && *name) {
+ fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n"));
+ return 1;
+ }
+ } else
+ goto skip_check;
+
do {
conf_cnt = 0;
check_conf(&rootmenu);
@@ -608,5 +616,11 @@ int main(int ac, char **av)
fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
return 1;
}
+skip_check:
+ if (input_mode == ask_silent && conf_write_autoconf()) {
+ fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
+ return 1;
+ }
+
return 0;
}
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index a9e3b6abf661..2da4a8d775a5 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -342,7 +342,7 @@ int conf_read(const char *name)
int conf_write(const char *name)
{
- FILE *out, *out_h;
+ FILE *out;
struct symbol *sym;
struct menu *menu;
const char *basename;
@@ -379,13 +379,6 @@ int conf_write(const char *name)
out = fopen(newname, "w");
if (!out)
return 1;
- out_h = NULL;
- if (!name) {
- out_h = fopen(".tmpconfig.h", "w");
- if (!out_h)
- return 1;
- file_write_dep(NULL);
- }
sym = sym_lookup("KERNELVERSION", 0);
sym_calc_value(sym);
time(&now);
@@ -401,16 +394,6 @@ int conf_write(const char *name)
sym_get_string_value(sym),
use_timestamp ? "# " : "",
use_timestamp ? ctime(&now) : "");
- if (out_h)
- fprintf(out_h, "/*\n"
- " * Automatically generated C config: don't edit\n"
- " * Linux kernel version: %s\n"
- "%s%s"
- " */\n"
- "#define AUTOCONF_INCLUDED\n",
- sym_get_string_value(sym),
- use_timestamp ? " * " : "",
- use_timestamp ? ctime(&now) : "");
if (!sym_change_count)
sym_clear_all_valid();
@@ -426,11 +409,6 @@ int conf_write(const char *name)
"#\n"
"# %s\n"
"#\n", str);
- if (out_h)
- fprintf(out_h, "\n"
- "/*\n"
- " * %s\n"
- " */\n", str);
} else if (!(sym->flags & SYMBOL_CHOICE)) {
sym_calc_value(sym);
if (!(sym->flags & SYMBOL_WRITE))
@@ -448,59 +426,39 @@ int conf_write(const char *name)
switch (sym_get_tristate_value(sym)) {
case no:
fprintf(out, "# CONFIG_%s is not set\n", sym->name);
- if (out_h)
- fprintf(out_h, "#undef CONFIG_%s\n", sym->name);
break;
case mod:
fprintf(out, "CONFIG_%s=m\n", sym->name);
- if (out_h)
- fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
break;
case yes:
fprintf(out, "CONFIG_%s=y\n", sym->name);
- if (out_h)
- fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
break;
}
break;
case S_STRING:
- // fix me
str = sym_get_string_value(sym);
fprintf(out, "CONFIG_%s=\"", sym->name);
- if (out_h)
- fprintf(out_h, "#define CONFIG_%s \"", sym->name);
- do {
+ while (1) {
l = strcspn(str, "\"\\");
if (l) {
fwrite(str, l, 1, out);
- if (out_h)
- fwrite(str, l, 1, out_h);
- }
- str += l;
- while (*str == '\\' || *str == '"') {
- fprintf(out, "\\%c", *str);
- if (out_h)
- fprintf(out_h, "\\%c", *str);
- str++;
+ str += l;
}
- } while (*str);
+ if (!*str)
+ break;
+ fprintf(out, "\\%c", *str++);
+ }
fputs("\"\n", out);
- if (out_h)
- fputs("\"\n", out_h);
break;
case S_HEX:
str = sym_get_string_value(sym);
if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
- if (out_h)
- fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
break;
}
case S_INT:
str = sym_get_string_value(sym);
fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
- if (out_h)
- fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
break;
}
}
@@ -520,10 +478,6 @@ int conf_write(const char *name)
}
}
fclose(out);
- if (out_h) {
- fclose(out_h);
- rename(".tmpconfig.h", "include/linux/autoconf.h");
- }
if (!name || basename != conf_def_filename) {
if (!name)
name = conf_def_filename;
@@ -542,3 +496,120 @@ int conf_write(const char *name)
return 0;
}
+
+int conf_write_autoconf(void)
+{
+ struct symbol *sym;
+ const char *str;
+ char *name;
+ FILE *out, *out_h;
+ time_t now;
+ int i, l;
+
+ file_write_dep("include/config/auto.conf.cmd");
+
+ out = fopen(".tmpconfig", "w");
+ if (!out)
+ return 1;
+
+ out_h = fopen(".tmpconfig.h", "w");
+ if (!out_h) {
+ fclose(out);
+ return 1;
+ }
+
+ sym = sym_lookup("KERNELVERSION", 0);
+ sym_calc_value(sym);
+ time(&now);
+ fprintf(out, "#\n"
+ "# Automatically generated make config: don't edit\n"
+ "# Linux kernel version: %s\n"
+ "# %s"
+ "#\n",
+ sym_get_string_value(sym), ctime(&now));
+ fprintf(out_h, "/*\n"
+ " * Automatically generated C config: don't edit\n"
+ " * Linux kernel version: %s\n"
+ " * %s"
+ " */\n"
+ "#define AUTOCONF_INCLUDED\n",
+ sym_get_string_value(sym), ctime(&now));
+
+ sym_clear_all_valid();
+
+ for_all_symbols(i, sym) {
+ sym_calc_value(sym);
+ if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
+ continue;
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ switch (sym_get_tristate_value(sym)) {
+ case no:
+ break;
+ case mod:
+ fprintf(out, "CONFIG_%s=m\n", sym->name);
+ fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
+ break;
+ case yes:
+ fprintf(out, "CONFIG_%s=y\n", sym->name);
+ fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
+ break;
+ }
+ break;
+ case S_STRING:
+ str = sym_get_string_value(sym);
+ fprintf(out, "CONFIG_%s=\"", sym->name);
+ fprintf(out_h, "#define CONFIG_%s \"", sym->name);
+ while (1) {
+ l = strcspn(str, "\"\\");
+ if (l) {
+ fwrite(str, l, 1, out);
+ fwrite(str, l, 1, out_h);
+ str += l;
+ }
+ if (!*str)
+ break;
+ fprintf(out, "\\%c", *str);
+ fprintf(out_h, "\\%c", *str);
+ str++;
+ }
+ fputs("\"\n", out);
+ fputs("\"\n", out_h);
+ break;
+ case S_HEX:
+ str = sym_get_string_value(sym);
+ if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
+ fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
+ fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
+ break;
+ }
+ case S_INT:
+ str = sym_get_string_value(sym);
+ fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
+ fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
+ break;
+ default:
+ break;
+ }
+ }
+ fclose(out);
+ fclose(out_h);
+
+ name = getenv("KCONFIG_AUTOHEADER");
+ if (!name)
+ name = "include/linux/autoconf.h";
+ if (rename(".tmpconfig.h", name))
+ return 1;
+ name = getenv("KCONFIG_AUTOCONFIG");
+ if (!name)
+ name = "include/config/auto.conf";
+ /*
+ * 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;
+}
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index b6a389c5fcbd..bd0fb1dc1322 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -4,6 +4,7 @@ P(conf_parse,void,(const char *name));
P(conf_read,int,(const char *name));
P(conf_read_simple,int,(const char *name));
P(conf_write,int,(const char *name));
+P(conf_write_autoconf,int,(void));
/* menu.c */
P(rootmenu,struct menu,);
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index 656d2c87d661..e3f28b9d59f4 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -44,7 +44,9 @@ int file_write_dep(const char *name)
else
fprintf(out, "\t%s\n", file->name);
}
- fprintf(out, "\n.config include/linux/autoconf.h: $(deps_config)\n\n$(deps_config):\n");
+ fprintf(out, "\ninclude/config/auto.conf: \\\n"
+ "\t$(deps_config)\n\n"
+ "$(deps_config): ;\n");
fclose(out);
rename("..config.tmp", name);
return 0;
generated by cgit (git 2.34.1) at 2024-06-15 06:34:01 +0000