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authorMichal Marek <mmarek@suse.cz>2009-12-07 10:38:33 -0500
committerMichal Marek <mmarek@suse.cz>2009-12-12 07:08:16 -0500
commitbc081dd6e9f622c73334dc465359168543ccaabf (patch)
treec015f5eba8e1bc79b2eb3861b8e95f15ee6d047d /scripts/kconfig
parent6299fee7b84ac7b4429b4e2787b99470a89cd5f5 (diff)
kbuild: generate modules.builtin
To make it easier for module-init-tools and scripts like mkinitrd to distinguish builtin and missing modules, install a modules.builtin file listing all builtin modules. This is done by generating an additional config file (tristate.conf) with tristate options set to uppercase 'Y' or 'M'. If we source that config file, the builtin modules appear in obj-Y. Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/kconfig')
-rw-r--r--scripts/kconfig/confdata.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 797a7410f690..c4dec80cfd8e 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -677,7 +677,7 @@ int conf_write_autoconf(void)
677 struct symbol *sym; 677 struct symbol *sym;
678 const char *str; 678 const char *str;
679 const char *name; 679 const char *name;
680 FILE *out, *out_h; 680 FILE *out, *tristate, *out_h;
681 time_t now; 681 time_t now;
682 int i, l; 682 int i, l;
683 683
@@ -692,9 +692,16 @@ int conf_write_autoconf(void)
692 if (!out) 692 if (!out)
693 return 1; 693 return 1;
694 694
695 tristate = fopen(".tmpconfig_tristate", "w");
696 if (!tristate) {
697 fclose(out);
698 return 1;
699 }
700
695 out_h = fopen(".tmpconfig.h", "w"); 701 out_h = fopen(".tmpconfig.h", "w");
696 if (!out_h) { 702 if (!out_h) {
697 fclose(out); 703 fclose(out);
704 fclose(tristate);
698 return 1; 705 return 1;
699 } 706 }
700 707
@@ -707,6 +714,9 @@ int conf_write_autoconf(void)
707 "# %s" 714 "# %s"
708 "#\n", 715 "#\n",
709 sym_get_string_value(sym), ctime(&now)); 716 sym_get_string_value(sym), ctime(&now));
717 fprintf(tristate, "#\n"
718 "# Automatically generated - do not edit\n"
719 "\n");
710 fprintf(out_h, "/*\n" 720 fprintf(out_h, "/*\n"
711 " * Automatically generated C config: don't edit\n" 721 " * Automatically generated C config: don't edit\n"
712 " * Linux kernel version: %s\n" 722 " * Linux kernel version: %s\n"
@@ -727,10 +737,14 @@ int conf_write_autoconf(void)
727 break; 737 break;
728 case mod: 738 case mod:
729 fprintf(out, "CONFIG_%s=m\n", sym->name); 739 fprintf(out, "CONFIG_%s=m\n", sym->name);
740 fprintf(tristate, "CONFIG_%s=M\n", sym->name);
730 fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name); 741 fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
731 break; 742 break;
732 case yes: 743 case yes:
733 fprintf(out, "CONFIG_%s=y\n", sym->name); 744 fprintf(out, "CONFIG_%s=y\n", sym->name);
745 if (sym->type == S_TRISTATE)
746 fprintf(tristate, "CONFIG_%s=Y\n",
747 sym->name);
734 fprintf(out_h, "#define CONFIG_%s 1\n", sym->name); 748 fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
735 break; 749 break;
736 } 750 }
@@ -772,6 +786,7 @@ int conf_write_autoconf(void)
772 } 786 }
773 } 787 }
774 fclose(out); 788 fclose(out);
789 fclose(tristate);
775 fclose(out_h); 790 fclose(out_h);
776 791
777 name = getenv("KCONFIG_AUTOHEADER"); 792 name = getenv("KCONFIG_AUTOHEADER");
@@ -779,6 +794,11 @@ int conf_write_autoconf(void)
779 name = "include/generated/autoconf.h"; 794 name = "include/generated/autoconf.h";
780 if (rename(".tmpconfig.h", name)) 795 if (rename(".tmpconfig.h", name))
781 return 1; 796 return 1;
797 name = getenv("KCONFIG_TRISTATE");
798 if (!name)
799 name = "include/config/tristate.conf";
800 if (rename(".tmpconfig_tristate", name))
801 return 1;
782 name = conf_get_autoconfig_name(); 802 name = conf_get_autoconfig_name();
783 /* 803 /*
784 * This must be the last step, kbuild has a dependency on auto.conf 804 * This must be the last step, kbuild has a dependency on auto.conf