From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Masahiro Yamada <masahiroy@kernel.org>, linux-kernel@vger.kernel.org
Subject: [PATCH 07/10] kconfig: refactor conf_write_autoconf()
Date: Fri, 1 Oct 2021 14:32:50 +0900 [thread overview]
Message-ID: <20211001053253.1223316-7-masahiroy@kernel.org> (raw)
In-Reply-To: <20211001053253.1223316-1-masahiroy@kernel.org>
This function does similar for auto.conf and autoconf.h
Create __conf_write_autoconf() helper to factor out the common code.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
scripts/kconfig/confdata.c | 94 +++++++++++++++++++++++---------------
1 file changed, 57 insertions(+), 37 deletions(-)
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 2c518aaa5255..6eb2c806fec0 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -1058,13 +1058,53 @@ static int conf_touch_deps(void)
return 0;
}
+static int __conf_write_autoconf(const char *filename,
+ void (*print_symbol)(FILE *, struct symbol *),
+ const struct comment_style *comment_style)
+{
+ char tmp[PATH_MAX];
+ FILE *file;
+ struct symbol *sym;
+ int ret, i;
+
+ if (make_parent_dir(filename))
+ return -1;
+
+ ret = snprintf(tmp, sizeof(tmp), "%s.tmp", filename);
+ if (ret >= sizeof(tmp)) /* check truncation */
+ return -1;
+
+ file = fopen(tmp, "w");
+ if (!file) {
+ perror("fopen");
+ return -1;
+ }
+
+ conf_write_heading(file, comment_style);
+
+ for_all_symbols(i, sym)
+ if ((sym->flags & SYMBOL_WRITE) && sym->name)
+ print_symbol(file, sym);
+
+ /* check possible errors in conf_write_heading() and print_symbol() */
+ if (ferror(file))
+ return -1;
+
+ fclose(file);
+
+ if (rename(tmp, filename)) {
+ perror("rename");
+ return -1;
+ }
+
+ return 0;
+}
+
int conf_write_autoconf(int overwrite)
{
struct symbol *sym;
- const char *name;
const char *autoconf_name = conf_get_autoconfig_name();
- FILE *out, *out_h;
- int i;
+ int ret, i;
if (!overwrite && is_present(autoconf_name))
return 0;
@@ -1074,45 +1114,25 @@ int conf_write_autoconf(int overwrite)
if (conf_touch_deps())
return 1;
- out = fopen(".tmpconfig", "w");
- if (!out)
- return 1;
-
- out_h = fopen(".tmpconfig.h", "w");
- if (!out_h) {
- fclose(out);
- return 1;
- }
-
- conf_write_heading(out, &comment_style_pound);
- conf_write_heading(out_h, &comment_style_c);
-
- for_all_symbols(i, sym) {
+ for_all_symbols(i, sym)
sym_calc_value(sym);
- if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
- continue;
- /* write symbols to auto.conf and autoconf.h */
- print_symbol_for_autoconf(out, sym);
- print_symbol_for_c(out_h, sym);
- }
- fclose(out);
- fclose(out_h);
-
- name = conf_get_autoheader_name();
- if (make_parent_dir(name))
- return 1;
- if (rename(".tmpconfig.h", name))
- return 1;
+ ret = __conf_write_autoconf(conf_get_autoheader_name(),
+ print_symbol_for_c,
+ &comment_style_c);
+ if (ret)
+ return ret;
- if (make_parent_dir(autoconf_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.
+ * Create include/config/auto.conf. This must be the last step because
+ * Kbuild has a dependency on auto.conf and this marks the successful
+ * completion of the previous steps.
*/
- if (rename(".tmpconfig", autoconf_name))
- return 1;
+ ret = __conf_write_autoconf(conf_get_autoconfig_name(),
+ print_symbol_for_autoconf,
+ &comment_style_pound);
+ if (ret)
+ return ret;
return 0;
}
--
2.30.2
next prev parent reply other threads:[~2021-10-01 5:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-01 5:32 [PATCH 01/10] kconfig: remove 'const' from the return type of sym_escape_string_value() Masahiro Yamada
2021-10-01 5:32 ` [PATCH 02/10] kconfig: refactor conf_write_heading() Masahiro Yamada
2021-10-01 5:32 ` [PATCH 03/10] kconfig: refactor conf_write_symbol() Masahiro Yamada
2021-10-28 5:16 ` Boris Kolpackov
2021-11-05 8:46 ` Masahiro Yamada
2021-11-05 11:40 ` Boris Kolpackov
2021-10-01 5:32 ` [PATCH 04/10] kconfig: refactor listnewconfig code Masahiro Yamada
2021-10-01 5:32 ` [PATCH 05/10] kconfig: move sym_escape_string_value() to confdata.c Masahiro Yamada
2021-10-01 5:32 ` [PATCH 06/10] kconfig: add conf_get_autoheader_name() Masahiro Yamada
2021-10-01 5:32 ` Masahiro Yamada [this message]
2021-10-01 5:32 ` [PATCH 08/10] kconfig: refactor conf_write_dep() Masahiro Yamada
2021-10-01 5:32 ` [PATCH 09/10] kconfig: refactor conf_touch_dep() Masahiro Yamada
2021-10-01 5:32 ` [PATCH 10/10] [for next only] kconfig: generate include/generated/rustc_cfg Masahiro Yamada
2021-10-01 11:28 ` n.schier
2021-10-02 8:59 ` Masahiro Yamada
2021-10-05 15:37 ` [PATCH 01/10] kconfig: remove 'const' from the return type of sym_escape_string_value() Masahiro Yamada
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