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-rw-r--r--scripts/kconfig/confdata.c126
1 files changed, 72 insertions, 54 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 515253fe46cf..9df80114b47b 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -5,6 +5,7 @@
#include <sys/stat.h>
#include <ctype.h>
+#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
@@ -18,6 +19,9 @@
static void conf_warning(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+static void conf_message(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
+
static const char *conf_filename;
static int conf_lineno, conf_warnings, conf_unsaved;
@@ -34,6 +38,29 @@ static void conf_warning(const char *fmt, ...)
conf_warnings++;
}
+static void conf_default_message_callback(const char *fmt, va_list ap)
+{
+ printf("#\n# ");
+ vprintf(fmt, ap);
+ printf("\n#\n");
+}
+
+static void (*conf_message_callback) (const char *fmt, va_list ap) =
+ conf_default_message_callback;
+void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
+{
+ conf_message_callback = fn;
+}
+
+static void conf_message(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ if (conf_message_callback)
+ conf_message_callback(fmt, ap);
+}
+
const char *conf_get_configname(void)
{
char *name = getenv("KCONFIG_CONFIG");
@@ -183,9 +210,8 @@ int conf_read_simple(const char *name, int def)
name = conf_expand_value(prop->expr->left.sym->name);
in = zconf_fopen(name);
if (in) {
- printf(_("#\n"
- "# using defaults found in %s\n"
- "#\n"), name);
+ conf_message(_("using defaults found in %s"),
+ name);
goto load;
}
}
@@ -220,24 +246,23 @@ load:
while (fgets(line, sizeof(line), in)) {
conf_lineno++;
sym = NULL;
- switch (line[0]) {
- case '#':
- if (memcmp(line + 2, "CONFIG_", 7))
+ if (line[0] == '#') {
+ if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
continue;
- p = strchr(line + 9, ' ');
+ p = strchr(line + 2 + strlen(CONFIG_), ' ');
if (!p)
continue;
*p++ = 0;
if (strncmp(p, "is not set", 10))
continue;
if (def == S_DEF_USER) {
- sym = sym_find(line + 9);
+ sym = sym_find(line + 2 + strlen(CONFIG_));
if (!sym) {
sym_add_change_count(1);
- break;
+ goto setsym;
}
} else {
- sym = sym_lookup(line + 9, 0);
+ sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
if (sym->type == S_UNKNOWN)
sym->type = S_BOOLEAN;
}
@@ -253,13 +278,8 @@ load:
default:
;
}
- break;
- case 'C':
- if (memcmp(line, "CONFIG_", 7)) {
- conf_warning("unexpected data");
- continue;
- }
- p = strchr(line + 7, '=');
+ } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
+ p = strchr(line + strlen(CONFIG_), '=');
if (!p)
continue;
*p++ = 0;
@@ -270,13 +290,13 @@ load:
*p2 = 0;
}
if (def == S_DEF_USER) {
- sym = sym_find(line + 7);
+ sym = sym_find(line + strlen(CONFIG_));
if (!sym) {
sym_add_change_count(1);
- break;
+ goto setsym;
}
} else {
- sym = sym_lookup(line + 7, 0);
+ sym = sym_lookup(line + strlen(CONFIG_), 0);
if (sym->type == S_UNKNOWN)
sym->type = S_OTHER;
}
@@ -285,14 +305,12 @@ load:
}
if (conf_set_sym_val(sym, def, def_flags, p))
continue;
- break;
- case '\r':
- case '\n':
- break;
- default:
- conf_warning("unexpected data");
+ } else {
+ if (line[0] != '\r' && line[0] != '\n')
+ conf_warning("unexpected data");
continue;
}
+setsym:
if (sym && sym_is_choice_value(sym)) {
struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
switch (sym->def[def].tri) {
@@ -405,9 +423,9 @@ static void conf_write_string(bool headerfile, const char *name,
{
int l;
if (headerfile)
- fprintf(out, "#define CONFIG_%s \"", name);
+ fprintf(out, "#define %s%s \"", CONFIG_, name);
else
- fprintf(out, "CONFIG_%s=\"", name);
+ fprintf(out, "%s%s=\"", CONFIG_, name);
while (1) {
l = strcspn(str, "\"\\");
@@ -433,13 +451,14 @@ static void conf_write_symbol(struct symbol *sym, enum symbol_type type,
switch (sym_get_tristate_value(sym)) {
case no:
if (write_no)
- fprintf(out, "# CONFIG_%s is not set\n", sym->name);
+ fprintf(out, "# %s%s is not set\n",
+ CONFIG_, sym->name);
break;
case mod:
- fprintf(out, "CONFIG_%s=m\n", sym->name);
+ fprintf(out, "%s%s=m\n", CONFIG_, sym->name);
break;
case yes:
- fprintf(out, "CONFIG_%s=y\n", sym->name);
+ fprintf(out, "%s%s=y\n", CONFIG_, sym->name);
break;
}
break;
@@ -449,7 +468,7 @@ static void conf_write_symbol(struct symbol *sym, enum symbol_type type,
case S_HEX:
case S_INT:
str = sym_get_string_value(sym);
- fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
+ fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str);
break;
case S_OTHER:
case S_UNKNOWN:
@@ -541,7 +560,7 @@ int conf_write(const char *name)
struct menu *menu;
const char *basename;
const char *str;
- char dirname[128], tmpname[128], newname[128];
+ char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
enum symbol_type type;
time_t now;
int use_timestamp = 1;
@@ -581,8 +600,6 @@ int conf_write(const char *name)
if (!out)
return 1;
- sym = sym_lookup("KERNELVERSION", 0);
- sym_calc_value(sym);
time(&now);
env = getenv("KCONFIG_NOTIMESTAMP");
if (env && *env)
@@ -590,10 +607,10 @@ int conf_write(const char *name)
fprintf(out, _("#\n"
"# Automatically generated make config: don't edit\n"
- "# Linux kernel version: %s\n"
+ "# %s\n"
"%s%s"
"#\n"),
- sym_get_string_value(sym),
+ rootmenu.prompt->text,
use_timestamp ? "# " : "",
use_timestamp ? ctime(&now) : "");
@@ -650,9 +667,7 @@ next:
return 1;
}
- printf(_("#\n"
- "# configuration written to %s\n"
- "#\n"), newname);
+ conf_message(_("configuration written to %s"), newname);
sym_set_change_count(0);
@@ -662,7 +677,7 @@ next:
static int conf_split_config(void)
{
const char *name;
- char path[128];
+ char path[PATH_MAX+1];
char *s, *d, c;
struct symbol *sym;
struct stat sb;
@@ -804,25 +819,23 @@ int conf_write_autoconf(void)
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"
"# %s"
"#\n",
- sym_get_string_value(sym), ctime(&now));
+ rootmenu.prompt->text, ctime(&now));
fprintf(tristate, "#\n"
"# Automatically generated - do not edit\n"
"\n");
fprintf(out_h, "/*\n"
" * Automatically generated C config: don't edit\n"
- " * Linux kernel version: %s\n"
+ " * %s\n"
" * %s"
" */\n"
"#define AUTOCONF_INCLUDED\n",
- sym_get_string_value(sym), ctime(&now));
+ rootmenu.prompt->text, ctime(&now));
for_all_symbols(i, sym) {
sym_calc_value(sym);
@@ -840,14 +853,17 @@ int conf_write_autoconf(void)
case no:
break;
case mod:
- fprintf(tristate, "CONFIG_%s=M\n", sym->name);
- fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
+ fprintf(tristate, "%s%s=M\n",
+ CONFIG_, sym->name);
+ fprintf(out_h, "#define %s%s_MODULE 1\n",
+ CONFIG_, sym->name);
break;
case yes:
if (sym->type == S_TRISTATE)
- fprintf(tristate, "CONFIG_%s=Y\n",
- sym->name);
- fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
+ fprintf(tristate,"%s%s=Y\n",
+ CONFIG_, sym->name);
+ fprintf(out_h, "#define %s%s 1\n",
+ CONFIG_, sym->name);
break;
}
break;
@@ -857,12 +873,14 @@ int conf_write_autoconf(void)
case S_HEX:
str = sym_get_string_value(sym);
if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
- fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
+ fprintf(out_h, "#define %s%s 0x%s\n",
+ CONFIG_, sym->name, str);
break;
}
case S_INT:
str = sym_get_string_value(sym);
- fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
+ fprintf(out_h, "#define %s%s %s\n",
+ CONFIG_, sym->name, str);
break;
default:
break;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.