[1/3] kbuild: generate modules.builtin

Message ID	200911172245.nAHMjCgX000377@imap1.linux-foundation.org (mailing list archive)
State	New, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nAHMkAa5007186 for <patchwork-kbuild@patchwork.kernel.org>; Tue, 17 Nov 2009 22:46:11 GMT Message-Id: <200911172245.nAHMjCgX000377@imap1.linux-foundation.org> Subject: [patch 1/3] kbuild: generate modules.builtin To: sam@ravnborg.org Cc: linux-kbuild@vger.kernel.org, akpm@linux-foundation.org, mmarek@suse.cz, JBeulich@novell.com From: akpm@linux-foundation.org Date: Tue, 17 Nov 2009 14:45:12 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk

diff -puN .gitignore~kbuild-generate-modulesbuiltin .gitignore --- a/.gitignore~kbuild-generate-modulesbuiltin +++ a/.gitignore @@ -22,6 +22,7 @@ *.lst *.symtypes *.order +modules.builtin *.elf *.bin *.gz diff -puN Makefile~kbuild-generate-modulesbuiltin Makefile --- a/Makefile~kbuild-generate-modulesbuiltin +++ a/Makefile @@ -887,6 +887,9 @@ $(sort $(vmlinux-init) $(vmlinux-main)) PHONY += $(vmlinux-dirs) $(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ +ifdef CONFIG_MODULES + $(Q)$(MAKE) $(modbuiltin)=$@ +endif # Build the kernel release string # @@ -1091,6 +1094,7 @@ all: modules PHONY += modules modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order + $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.builtin) > $(objtree)/modules.builtin @$(kecho) ' Building modules, stage 2.'; $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild @@ -1119,7 +1123,7 @@ _modinst_: rm -f $(MODLIB)/build ; \ ln -s $(objtree) $(MODLIB)/build ; \ fi - @cp -f $(objtree)/modules.order $(MODLIB)/ + @cp -f $(objtree)/modules.{order,builtin} $(MODLIB)/ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst # This depmod is only for convenience to give the initial @@ -1181,8 +1185,9 @@ clean: archclean $(clean-dirs) $ -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ -o -name '*.symtypes' -o -name 'modules.order' \ - -o -name 'Module.markers' -o -name '.tmp_*.o.*' \ - -o -name '*.gcno' $ -type f -print | xargs rm -f + -o -name 'modules.builtin' -o -name 'Module.markers' \ + -o -name '.tmp_*.o.*' -o -name '*.gcno' \) \ + -type f -print | xargs rm -f # mrproper - Delete all generated files, including .config # @@ -1380,7 +1385,8 @@ $(clean-dirs): clean: rm-dirs := $(MODVERDIR) clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \ $(KBUILD_EXTMOD)/Module.markers \ - $(KBUILD_EXTMOD)/modules.order + $(KBUILD_EXTMOD)/modules.order \ + $(KBUILD_EXTMOD)/modules.builtin clean: $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) diff -puN scripts/Kbuild.include~kbuild-generate-modulesbuiltin scripts/Kbuild.include --- a/scripts/Kbuild.include~kbuild-generate-modulesbuiltin +++ a/scripts/Kbuild.include @@ -149,6 +149,12 @@ ld-option = $(call try-run,\ # $(Q)$(MAKE) $(build)=dir build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj +### +# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj= +# Usage: +# $(Q)$(MAKE) $(modbuiltin)=dir +modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj + # Prefix -I with $(srctree) if it is not an absolute path. # skip if -I has no parameter addtree = $(if $(patsubst -I%,%,$(1)), \ diff -puN scripts/Makefile.lib~kbuild-generate-modulesbuiltin scripts/Makefile.lib --- a/scripts/Makefile.lib~kbuild-generate-modulesbuiltin +++ a/scripts/Makefile.lib @@ -37,6 +37,8 @@ modorder := $(patsubst %/,%/modules.orde __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) subdir-y += $(__subdir-y) +__subdir-Y := $(patsubst %/,%,$(filter %/, $(obj-Y))) +subdir-Y += $(__subdir-Y) __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) subdir-m += $(__subdir-m) obj-y := $(patsubst %/, %/built-in.o, $(obj-y)) @@ -44,7 +46,7 @@ obj-m := $(filter-out %/, $(obj-m)) # Subdirectories we need to descend into -subdir-ym := $(sort $(subdir-y) $(subdir-m)) +subdir-ym := $(sort $(subdir-y) $(subdir-Y) $(subdir-m)) # if $(foo-objs) exists, foo.o is a composite object multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) @@ -76,6 +78,7 @@ always := $(addprefix $(obj)/,$(always) targets := $(addprefix $(obj)/,$(targets)) modorder := $(addprefix $(obj)/,$(modorder)) obj-y := $(addprefix $(obj)/,$(obj-y)) +obj-Y := $(addprefix $(obj)/,$(obj-Y)) obj-m := $(addprefix $(obj)/,$(obj-m)) lib-y := $(addprefix $(obj)/,$(lib-y)) subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) diff -puN /dev/null scripts/Makefile.modbuiltin --- /dev/null +++ a/scripts/Makefile.modbuiltin @@ -0,0 +1,48 @@ +# ========================================================================== +# Generating modules.builtin +# ========================================================================== + +src := $(obj) + +PHONY := __modbuiltin +__modbuiltin: + +# Read auto2.conf which sets tristate variables to 'Y' instead of 'y' +# That way, we get the list of built-in modules in obj-Y +-include include/config/auto2.conf + +include scripts/Kbuild.include + +# The filename Kbuild has precedence over Makefile +kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) +kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile) +include $(kbuild-file) + +include scripts/Makefile.lib + +modbuiltin-subdirs := $(patsubst %,%/modules.builtin, $(subdir-ym)) +modbuiltin-mods := $(filter %.ko, $(obj-Y:.o=.ko)) +modbuiltin-target := $(obj)/modules.builtin + +__modbuiltin: $(modbuiltin-target) $(subdir-ym) + @: + +modbuiltin-cmds = \ + for m in $(modbuiltin-mods); do echo kernel/$$m; done; \ + cat /dev/null $(modbuiltin-subdirs); + +$(modbuiltin-target): $(subdir-ym) + $(Q)($(modbuiltin-cmds)) > $@ + +# Descending +# --------------------------------------------------------------------------- + +PHONY += $(subdir-ym) +$(subdir-ym): + $(Q)$(MAKE) $(modbuiltin)=$@ + + +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable se we can use it in if_changed and friends. + +.PHONY: $(PHONY) diff -puN scripts/kconfig/confdata.c~kbuild-generate-modulesbuiltin scripts/kconfig/confdata.c --- a/scripts/kconfig/confdata.c~kbuild-generate-modulesbuiltin +++ a/scripts/kconfig/confdata.c @@ -672,12 +672,27 @@ out: return res; } +int fprintf2(FILE *f1, FILE *f2, const char *fmt, ...) +{ + va_list ap; + int res; + + va_start(ap, fmt); + vfprintf(f1, fmt, ap); + va_end(ap); + va_start(ap, fmt); + res = vfprintf(f2, fmt, ap); + va_end(ap); + + return res; +} + int conf_write_autoconf(void) { struct symbol *sym; const char *str; const char *name; - FILE *out, *out_h; + FILE *out, *out2, *out_h; time_t now; int i, l; @@ -692,16 +707,23 @@ int conf_write_autoconf(void) if (!out) return 1; + out2 = fopen(".tmpconfig2", "w"); + if (!out2) { + fclose(out); + return 1; + } + out_h = fopen(".tmpconfig.h", "w"); if (!out_h) { fclose(out); + fclose(out2); return 1; } sym = sym_lookup("KERNELVERSION", 0); sym_calc_value(sym); time(&now); - fprintf(out, "#\n" + fprintf2(out, out2, "#\n" "# Automatically generated make config: don't edit\n" "# Linux kernel version: %s\n" "# %s" @@ -726,45 +748,51 @@ int conf_write_autoconf(void) case no: break; case mod: - fprintf(out, "CONFIG_%s=m\n", sym->name); + fprintf2(out, out2, "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(out2, "CONFIG_%s=%c\n", sym->name, + sym->type == S_BOOLEAN ? 'y' : 'Y'); 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); + fprintf2(out, out2, "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, out2); fwrite(str, l, 1, out_h); str += l; } if (!*str) break; - fprintf(out, "\\%c", *str); + fprintf2(out, out2, "\\%c", *str); fprintf(out_h, "\\%c", *str); str++; } fputs("\"\n", out); + fputs("\"\n", out2); 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); + fprintf2(out, out2, "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); + fprintf2(out, out2, "CONFIG_%s=%s\n", sym->name, str); fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str); break; default: @@ -772,6 +800,7 @@ int conf_write_autoconf(void) } } fclose(out); + fclose(out2); fclose(out_h); name = getenv("KCONFIG_AUTOHEADER"); @@ -779,6 +808,11 @@ int conf_write_autoconf(void) name = "include/generated/autoconf.h"; if (rename(".tmpconfig.h", name)) return 1; + name = getenv("KCONFIG_AUTOCONFIG2"); + if (!name) + name = "include/config/auto2.conf"; + if (rename(".tmpconfig2", name)) + return 1; name = conf_get_autoconfig_name(); /* * This must be the last step, kbuild has a dependency on auto.conf

[1/3] kbuild: generate modules.builtin

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