diff options
| -rw-r--r-- | Makefile | 27 | ||||
| -rw-r--r-- | scripts/Makefile.build | 2 | ||||
| -rw-r--r-- | scripts/Makefile.modpost | 2 | ||||
| -rw-r--r-- | scripts/kconfig/conf.c | 16 | ||||
| -rw-r--r-- | scripts/kconfig/confdata.c | 177 | ||||
| -rw-r--r-- | scripts/kconfig/lkc_proto.h | 1 | ||||
| -rw-r--r-- | scripts/kconfig/util.c | 4 |
7 files changed, 156 insertions, 73 deletions
@@ -404,7 +404,7 @@ include $(srctree)/arch/$(ARCH)/Makefile export KBUILD_DEFCONFIG config %config: scripts_basic outputmakefile FORCE - $(Q)mkdir -p include/linux + $(Q)mkdir -p include/linux include/config $(Q)$(MAKE) $(build)=scripts/kconfig $@ $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease @@ -421,8 +421,6 @@ PHONY += scripts scripts: scripts_basic include/config/MARKER $(Q)$(MAKE) $(build)=$(@) -scripts_basic: include/linux/autoconf.h - # Objects we will link into vmlinux / subdirs we need to visit init-y := init/ drivers-y := drivers/ sound/ @@ -436,25 +434,22 @@ ifeq ($(dot-config),1) # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. --include .kconfig.d - -include .config +-include include/config/auto.conf.cmd +-include include/config/auto.conf -# If .config needs to be updated, it will be done via the dependency -# that autoconf has on .config. # To avoid any implicit rule to kick in, define an empty command -.config .kconfig.d: ; +.config include/config/auto.conf.cmd: ; -# If .config is newer than include/linux/autoconf.h, someone tinkered +# If .config is newer than include/config/auto.conf, someone tinkered # with it and forgot to run make oldconfig. -# If kconfig.d is missing then we are probarly in a cleaned tree so +# 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/linux/autoconf.h: .kconfig.d .config - $(Q)mkdir -p include/linux +include/config/auto.conf: .config include/config/auto.conf.cmd $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig + else # Dummy target needed, because used as prerequisite -include/linux/autoconf.h: ; +include/config/auto.conf: ; endif # The all: target is the default when no target is given on the @@ -779,7 +774,7 @@ PHONY += prepare-all prepare3: .kernelrelease ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' - $(Q)if [ -f $(srctree)/.config ]; then \ + $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ echo " $(srctree) is not clean, please run 'make mrproper'";\ echo " in the '$(srctree)' directory.";\ /bin/false; \ @@ -822,7 +817,7 @@ include/asm: # Split autoconf.h into include/linux/config/* -include/config/MARKER: scripts/basic/split-include include/linux/autoconf.h +include/config/MARKER: scripts/basic/split-include include/config/auto.conf @echo ' SPLIT include/linux/autoconf.h -> include/config/*' @scripts/basic/split-include include/linux/autoconf.h include/config @touch $@ diff --git a/scripts/Makefile.build b/scripts/Makefile.build index e48e60da3040..53e53a2e80ae 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -8,7 +8,7 @@ PHONY := __build __build: # Read .config if it exist, otherwise ignore --include .config +-include include/config/auto.conf include scripts/Kbuild.include diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 0e056cffffdb..576cce5e387f 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -35,7 +35,7 @@ PHONY := _modpost _modpost: __modpost -include .config +include include/config/auto.conf include scripts/Kbuild.include include scripts/Makefile.lib 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; |
