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| author | Roman Zippel <zippel@linux-m68k.org> | 2006-06-08 22:12:51 -0700 |
|---|---|---|
| committer | Sam Ravnborg <sam@mars.ravnborg.org> | 2006-06-09 16:28:07 +0200 |
| commit | 14cdd3c402bf7c66f0bcd76e290f0770a54a4b21 (patch) | |
| tree | 1a58bdd177f1d5723a1a695e6165c5904c641c55 | |
| parent | 250725aa13f5c9595e5bc265ebed8471e816d8b4 (diff) | |
| download | linux-3.10-14cdd3c402bf7c66f0bcd76e290f0770a54a4b21.tar.gz linux-3.10-14cdd3c402bf7c66f0bcd76e290f0770a54a4b21.tar.bz2 linux-3.10-14cdd3c402bf7c66f0bcd76e290f0770a54a4b21.zip | |
kconfig: KCONFIG_OVERWRITECONFIG
If you set KCONFIG_OVERWRITECONFIG in environment, Kconfig will not break
symlinks when .config is a symlink to somewhere else.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| -rw-r--r-- | Makefile | 6 | ||||
| -rw-r--r-- | scripts/kconfig/confdata.c | 46 | ||||
| -rw-r--r-- | scripts/kconfig/lkc.h | 2 |
3 files changed, 33 insertions, 21 deletions
@@ -178,6 +178,8 @@ CROSS_COMPILE ?= # Architecture as present in compile.h UTS_MACHINE := $(ARCH) +KCONFIG_CONFIG ?= .config + # SHELL used by kbuild CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ @@ -437,13 +439,13 @@ ifeq ($(dot-config),1) -include include/config/auto.conf # To avoid any implicit rule to kick in, define an empty command -.config include/config/auto.conf.cmd: ; +$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; # If .config is newer than include/config/auto.conf, someone tinkered # with it and forgot to run make oldconfig. # if auto.conf.cmd is missing then we are probarly in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files -include/config/auto.conf: .config include/config/auto.conf.cmd +include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 5bd66f45118..2ee48c377b6 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -21,8 +21,6 @@ static void conf_warning(const char *fmt, ...) static const char *conf_filename; static int conf_lineno, conf_warnings, conf_unsaved; -const char conf_def_filename[] = ".config"; - const char conf_defname[] = "arch/$ARCH/defconfig"; static void conf_warning(const char *fmt, ...) @@ -36,6 +34,13 @@ static void conf_warning(const char *fmt, ...) conf_warnings++; } +const char *conf_get_configname(void) +{ + char *name = getenv("KCONFIG_CONFIG"); + + return name ? name : ".config"; +} + static char *conf_expand_value(const char *in) { struct symbol *sym; @@ -91,7 +96,7 @@ int conf_read_simple(const char *name, int def) } else { struct property *prop; - name = conf_def_filename; + name = conf_get_configname(); in = zconf_fopen(name); if (in) goto load; @@ -381,7 +386,7 @@ int conf_write(const char *name) if (!stat(name, &st) && S_ISDIR(st.st_mode)) { strcpy(dirname, name); strcat(dirname, "/"); - basename = conf_def_filename; + basename = conf_get_configname(); } else if ((slash = strrchr(name, '/'))) { int size = slash - name + 1; memcpy(dirname, name, size); @@ -389,16 +394,24 @@ int conf_write(const char *name) if (slash[1]) basename = slash + 1; else - basename = conf_def_filename; + basename = conf_get_configname(); } else basename = name; } else - basename = conf_def_filename; + basename = conf_get_configname(); - sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid()); - out = fopen(newname, "w"); + 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; + sym = sym_lookup("KERNELVERSION", 0); sym_calc_value(sym); time(&now); @@ -498,19 +511,18 @@ int conf_write(const char *name) } } fclose(out); - if (!name || basename != conf_def_filename) { - if (!name) - name = conf_def_filename; - sprintf(tmpname, "%s.old", name); - rename(name, tmpname); + + if (*tmpname) { + strcat(dirname, name ? name : conf_get_configname()); + strcat(dirname, ".old"); + rename(newname, dirname); + if (rename(tmpname, newname)) + return 1; } - sprintf(tmpname, "%s%s", dirname, basename); - if (rename(newname, tmpname)) - return 1; printf(_("#\n" "# configuration written to %s\n" - "#\n"), tmpname); + "#\n"), newname); sym_change_count = 0; diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h index 2d3d4ed3c9f..2628023a1fe 100644 --- a/scripts/kconfig/lkc.h +++ b/scripts/kconfig/lkc.h @@ -64,8 +64,6 @@ int zconf_lineno(void); char *zconf_curname(void); /* confdata.c */ -extern const char conf_def_filename[]; - char *conf_get_default_confname(void); /* kconfig_load.c */ |