Merge bk://linux-sam.bkbits.net/kbuild

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Makefile

@@ -18,7 +18,7 @@ MAKEFLAGS += --no-print-directory
 #
 # Most importantly: sub-Makefiles should only ever modify files in
 # their own directory. If in some directory we have a dependency on
-# a file in another dir (which doesn't happen often, but it's of
+# a file in another dir (which doesn't happen often, but it's often
 # unavoidable when linking the built-in.o targets which finally
 # turn into vmlinux), we will call a sub make in that other dir, and
 # after that we are sure that everything which is in that other dir
@@ -67,7 +67,7 @@ endif
 
 
 # kbuild supports saving output files in a separate directory.
-# To locate output files in a separate directory two syntax'es are supported.
+# To locate output files in a separate directory two syntaxes are supported.
 # In both cases the working directory must be the root of the kernel src.
 # 1) O=
 # Use "make O=dir/to/store/output/files/"
@@ -78,7 +78,8 @@ endif
 # export KBUILD_OUTPUT=dir/to/store/output/files/
 # make
 #
-# The O= assigment takes precedence over the KBUILD_OUTPUT environment variable.
+# The O= assignment takes precedence over the KBUILD_OUTPUT environment
+# variable.
 
 
 # KBUILD_SRC is set on invocation of make in OBJ directory
@@ -539,16 +540,14 @@ CFLAGS += $(call cc-option,-Wno-pointer-sign,)
 # Default kernel image to build when no specific target is given.
 # KBUILD_IMAGE may be overruled on the commandline or
 # set in the environment
-# Also any assingments in arch/$(ARCH)/Makefiel take precedence over
+# Also any assignments in arch/$(ARCH)/Makefile take precedence over
 # this default value
 export KBUILD_IMAGE ?= vmlinux
 
 #
 # INSTALL_PATH specifies where to place the updated kernel and system map
-# images.  Uncomment if you want to place them anywhere other than root.
-#
-
-#export	INSTALL_PATH=/boot
+# images. Default is /boot, but you can set it to other values
+export	INSTALL_PATH ?= /boot
 
 #
 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
@@ -898,7 +897,7 @@ depmod_opts	:= -b $(INSTALL_MOD_PATH) -r
 endif
 .PHONY: _modinst_post
 _modinst_post: _modinst_
-	if [ -r System.map ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
+	if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
 
 else # CONFIG_MODULES
 
@@ -1096,9 +1095,17 @@ KBUILD_MODULES := 1
 crmodverdir:
 	$(Q)mkdir -p $(MODVERDIR)
 
+.PHONY: $(objtree)/Module.symvers
+$(objtree)/Module.symvers:
+	@test -e $(objtree)/Module.symvers || ( \
+	echo; \
+	echo "  WARNING: Symbol version dump $(objtree)/Module.symvers"; \
+	echo "           is missing; modules will have no dependencies and modversions."; \
+	echo )
+
 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
 .PHONY: $(module-dirs) modules
-$(module-dirs): crmodverdir
+$(module-dirs): crmodverdir $(objtree)/Module.symvers
 	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
 
 modules: $(module-dirs)
@@ -1136,20 +1143,30 @@ endif # KBUILD_EXTMOD
 # Generate tags for editors
 # ---------------------------------------------------------------------------
 
+#We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
+#(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
+#Adding $(srctree) adds about 20M on i386 to the size of the output file!
+
+ifeq ($(KBUILD_OUTPUT),)
+__srctree =
+else
+__srctree = $(srctree)/
+endif
+
 define all-sources
-	( find $(srctree) $(RCS_FIND_IGNORE) \
+	( find $(__srctree) $(RCS_FIND_IGNORE) \
 	       \( -name include -o -name arch \) -prune -o \
 	       -name '*.[chS]' -print; \
-	  find $(srctree)/arch/$(ARCH) $(RCS_FIND_IGNORE) \
+	  find $(__srctree)arch/$(ARCH) $(RCS_FIND_IGNORE) \
 	       -name '*.[chS]' -print; \
-	  find $(srctree)/security/selinux/include $(RCS_FIND_IGNORE) \
+	  find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
 	       -name '*.[chS]' -print; \
-	  find $(srctree)/include $(RCS_FIND_IGNORE) \
+	  find $(__srctree)include $(RCS_FIND_IGNORE) \
 	       \( -name config -o -name 'asm-*' \) -prune \
 	       -o -name '*.[chS]' -print; \
-	  find $(srctree)/include/asm-$(ARCH) $(RCS_FIND_IGNORE) \
+	  find $(__srctree)include/asm-$(ARCH) $(RCS_FIND_IGNORE) \
 	       -name '*.[chS]' -print; \
-	  find $(srctree)/include/asm-generic $(RCS_FIND_IGNORE) \
+	  find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
 	       -name '*.[chS]' -print )
 endef
 
@@ -1172,7 +1189,7 @@ quiet_cmd_tags = MAKE   $@
 define cmd_tags
 	rm -f $@; \
 	CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL"`; \
-	$(all-sources) | xargs ctags $$CTAGSF -a
+	$(all-sources) | xargs ctags $$CTAGSF -a --extra=+f
 endef
 
 TAGS: FORCE

arch/i386/Makefile

@@ -142,7 +142,10 @@ zlilo bzlilo: vmlinux
 zdisk bzdisk: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
 
-install fdimage fdimage144 fdimage288: vmlinux
+fdimage fdimage144 fdimage288: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
+
+install:
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
 
 prepare: include/asm-$(ARCH)/asm_offsets.h

arch/i386/kernel/Makefile

@@ -46,7 +46,7 @@ targets += vsyscall.lds
 
 # The DSO images are built using a special linker script.
 quiet_cmd_syscall = SYSCALL $@
-      cmd_syscall = $(CC) -nostdlib $(SYSCFLAGS_$(@F)) \
+      cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
 		          -Wl,-T,$(filter-out FORCE,$^) -o $@
 
 export CPPFLAGS_vsyscall.lds += -P -C -U$(ARCH)

drivers/net/wireless/prism54/Makefile

@@ -6,5 +6,3 @@ prism54-objs := islpci_eth.o islpci_mgt.o \
 
 obj-$(CONFIG_PRISM54) += prism54.o
 
-EXTRA_CFLAGS = -I$(PWD) #-DCONFIG_PRISM54_WDS
-

drivers/video/console/Makefile

@@ -39,5 +39,5 @@ quiet_cmd_conmakehash = CNMKHSH $@
 		sed -e '/\#include <[^>]*>/p' -e 's/types/init/' \
 		-e 's/dfont\(_uni.*\]\)/promfont\1 __initdata/' > $@
 
-$(obj)/promcon_tbl.c: $(src)/prom.uni FORCE
-	$(call if_changed,conmakehash)
+$(obj)/promcon_tbl.c: $(src)/prom.uni
+	$(call cmd,conmakehash)

include/linux/module.h

@@ -77,24 +77,14 @@ void sort_main_extable(void);
 extern struct subsystem module_subsys;
 
 #ifdef MODULE
-#define ___module_cat(a,b) __mod_ ## a ## b
-#define __module_cat(a,b) ___module_cat(a,b)
-#define __MODULE_INFO(tag, name, info)					  \
-static const char __module_cat(name,__LINE__)[]				  \
-  __attribute_used__							  \
-  __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
-
 #define MODULE_GENERIC_TABLE(gtype,name)			\
 extern const struct gtype##_id __mod_##gtype##_table		\
   __attribute__ ((unused, alias(__stringify(name))))
 
 extern struct module __this_module;
 #define THIS_MODULE (&__this_module)
-
 #else  /* !MODULE */
-
 #define MODULE_GENERIC_TABLE(gtype,name)
-#define __MODULE_INFO(tag, name, info)
 #define THIS_MODULE ((struct module *)0)
 #endif
 
@@ -560,7 +550,8 @@ static inline void MODULE_PARM_(void) { }
 /* DEPRECATED: Do not use. */
 #define MODULE_PARM(var,type)						    \
 struct obsolete_modparm __parm_##var __attribute__((section("__obsparm"))) = \
-{ __stringify(var), type, &MODULE_PARM_ };
+{ __stringify(var), type, &MODULE_PARM_ }; \
+__MODULE_PARM_TYPE(var, type);
 #else
 #define MODULE_PARM(var,type) static void __attribute__((__unused__)) *__parm_##var = &MODULE_PARM_;
 #endif

include/linux/moduleparam.h

@@ -13,6 +13,19 @@
 #define MODULE_PARAM_PREFIX __stringify(KBUILD_MODNAME) "."
 #endif
 
+#ifdef MODULE
+#define ___module_cat(a,b) __mod_ ## a ## b
+#define __module_cat(a,b) ___module_cat(a,b)
+#define __MODULE_INFO(tag, name, info)					  \
+static const char __module_cat(name,__LINE__)[]				  \
+  __attribute_used__							  \
+  __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
+#else  /* !MODULE */
+#define __MODULE_INFO(tag, name, info)
+#endif
+#define __MODULE_PARM_TYPE(name, _type)					  \
+  __MODULE_INFO(parmtype, name##type, #name ":" _type)
+
 struct kernel_param;
 
 /* Returns 0, or -errno.  arg is in kp->arg. */
@@ -65,7 +78,7 @@ struct kparam_array
 #define module_param_named(name, value, type, perm)			   \
 	param_check_##type(name, &(value));				   \
 	module_param_call(name, param_set_##type, param_get_##type, &value, perm); \
-	__MODULE_INFO(parmtype, name##type, #name ":" #type)
+	__MODULE_PARM_TYPE(name, #type)
 
 #define module_param(name, type, perm)				\
 	module_param_named(name, name, type, perm)
@@ -76,7 +89,7 @@ struct kparam_array
 		= { len, string };					\
 	module_param_call(name, param_set_copystring, param_get_string,	\
 		   &__param_string_##name, perm);			\
-	__MODULE_INFO(parmtype, name##type, #name ":string")
+	__MODULE_PARM_TYPE(name, "string")
 
 /* Called on module insert or kernel boot */
 extern int parse_args(const char *name,
@@ -138,7 +151,7 @@ extern int param_get_invbool(char *buffer, struct kernel_param *kp);
 	    sizeof(array[0]), array };					\
 	module_param_call(name, param_array_set, param_array_get, 	\
 			  &__param_arr_##name, perm);			\
-	__MODULE_INFO(parmtype, name##type, #name ":array of " #type)
+	__MODULE_PARM_TYPE(name, "array of " #type)
 
 #define module_param_array(name, type, nump, perm)		\
 	module_param_array_named(name, name, type, nump, perm)

kernel/Makefile

@@ -47,7 +47,7 @@ $(obj)/config_data.gz: .config FORCE
 	$(call if_changed,gzip)
 
 quiet_cmd_ikconfiggz = IKCFG   $@
-      cmd_ikconfiggz = (echo "const char kernel_config_data[] = MAGIC_START"; cat $< | scripts/bin2c; echo "MAGIC_END;") > $@
+      cmd_ikconfiggz = (echo "static const char kernel_config_data[] = MAGIC_START"; cat $< | scripts/bin2c; echo "MAGIC_END;") > $@
 targets += config_data.h
 $(obj)/config_data.h: $(obj)/config_data.gz FORCE
 	$(call if_changed,ikconfiggz)

kernel/kallsyms.c

@@ -355,7 +355,7 @@ static int s_show(struct seq_file *m, void *p)
 	return 0;
 }
 
-struct seq_operations kallsyms_op = {
+static struct seq_operations kallsyms_op = {
 	.start = s_start,
 	.next = s_next,
 	.stop = s_stop,
@@ -397,7 +397,7 @@ static struct file_operations kallsyms_operations = {
 	.release = kallsyms_release,
 };
 
-int __init kallsyms_init(void)
+static int __init kallsyms_init(void)
 {
 	struct proc_dir_entry *entry;
 

scripts/Makefile.lib

@@ -183,15 +183,24 @@ cmd_gzip = gzip -f -9 < $< > $@
 # Generic stuff
 # ===========================================================================
 
+ifneq ($(KBUILD_NOCMDDEP),1)
+# Check if both arguments has same arguments. Result in empty string if equal
+# User may override this check using make KBUILD_NOCMDDEP=1
+arg-check = $(strip $(filter-out $(1), $(2)) $(filter-out $(2), $(1)) )
+
+endif
+
+# echo command. Short version is $(quiet) equals quiet, otherwise full command
+echo-cmd = $(if $($(quiet)cmd_$(1)), \
+	echo '  $(subst ','\'',$($(quiet)cmd_$(1)))';)
+
 # function to only execute the passed command if necessary
 # >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file
 # note: when using inline perl scripts [perl -e '...$$t=1;...'] in $(cmd_xxx) double $$ your perl vars
-
-if_changed = $(if $(strip $? \
-		          $(filter-out $(cmd_$(1)),$(cmd_$@))\
-			  $(filter-out $(cmd_$@),$(cmd_$(1)))),\
+# 
+if_changed = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \
 	@set -e; \
-	$(if $($(quiet)cmd_$(1)),echo '  $(subst ','\'',$($(quiet)cmd_$(1)))';) \
+	$(echo-cmd) \
 	$(cmd_$(1)); \
 	echo 'cmd_$@ := $(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).cmd)
 
@@ -200,10 +209,9 @@ if_changed = $(if $(strip $? \
 # file
 
 if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\
-		          $(filter-out $(cmd_$(1)),$(cmd_$@))\
-			  $(filter-out $(cmd_$@),$(cmd_$(1)))),\
+	$(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),                  \
 	@set -e; \
-	$(if $($(quiet)cmd_$(1)),echo '  $(subst ','\'',$($(quiet)cmd_$(1)))';) \
+	$(echo-cmd) \
 	$(cmd_$(1)); \
 	scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(subst ','\'',$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \
 	rm -f $(depfile); \
@@ -213,9 +221,7 @@ if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\
 # will check if $(cmd_foo) changed, or any of the prequisites changed,
 # and if so will execute $(rule_foo)
 
-if_changed_rule = $(if $(strip $? \
-		               $(filter-out $(cmd_$(1)),$(cmd_$@))\
-			       $(filter-out $(cmd_$@),$(cmd_$(1)))),\
+if_changed_rule = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),\
 			@set -e; \
 			$(rule_$(1)))
 

scripts/Makefile.modinst

@@ -21,8 +21,9 @@ quiet_cmd_modules_install = INSTALL $@
 
 # Modules built outside the kernel source tree go into extra by default
 INSTALL_MOD_DIR ?= extra
+ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(KBUILD_EXTMOD),,$(@D))
 
-modinst_dir = $(MODLIB)/$(if $(filter ../% /%,$@),$(INSTALL_MOD_DIR)/,kernel/$(@D))
+modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D))
 
 $(modules):
-	$(call cmd,modules_install,$(modinst_dir))
+	$(call cmd,modules_install,$(MODLIB)/$(modinst_dir))

scripts/genksyms/genksyms.h

@@ -25,7 +25,6 @@
 #define MODUTILS_GENKSYMS_H 1
 
 #include <stdio.h>
-#include <assert.h>
 
 
 enum symbol_type
@@ -89,8 +88,17 @@ void error_with_pos(const char *, ...);
 
 #define MODUTILS_VERSION "<in-kernel>"
 
-#define xmalloc(size) ({ void *__ptr = malloc(size); assert(__ptr || size == 0); __ptr; })
-#define xstrdup(str)  ({ char *__str = strdup(str); assert(__str); __str; })
-
+#define xmalloc(size) ({ void *__ptr = malloc(size);		\
+	if(!__ptr && size != 0) {				\
+		fprintf(stderr, "out of memory\n");		\
+		exit(1);					\
+	}							\
+	__ptr; })
+#define xstrdup(str)  ({ char *__str = strdup(str);		\
+	if (!__str) {						\
+		fprintf(stderr, "out of memory\n");		\
+		exit(1);					\
+	}							\
+	__str; })
 
 #endif /* genksyms.h */

scripts/kconfig/Makefile

@@ -50,10 +50,12 @@ endif
 
 # Help text used by make help
 help:
-	@echo  '  oldconfig	  - Update current config utilising a line-oriented program'
+	@echo  '  config	  - Update current config utilising a line-oriented program'
 	@echo  '  menuconfig	  - Update current config utilising a menu based program'
 	@echo  '  xconfig	  - Update current config utilising a QT based front-end'
 	@echo  '  gconfig	  - Update current config utilising a GTK based front-end'
+	@echo  '  oldconfig	  - Update current config utilising a provided .config as base'
+	@echo  '  randconfig	  - New config with random answer to all options'
 	@echo  '  defconfig	  - New config with default answer to all options'
 	@echo  '  allmodconfig	  - New config selecting modules when possible'
 	@echo  '  allyesconfig	  - New config where all options are accepted with yes'
@@ -107,6 +109,10 @@ HOSTCFLAGS_gconf.o	= `pkg-config gtk+-2.0 gmodule-2.0 libglade-2.0 --cflags` \
 
 $(obj)/conf.o $(obj)/mconf.o $(obj)/qconf.o $(obj)/gconf.o: $(obj)/zconf.tab.h
 
+$(obj)/zconf.tab.h: $(src)/zconf.tab.h_shipped
+$(obj)/zconf.tab.c: $(src)/zconf.tab.c_shipped
+$(obj)/lex.zconf.c: $(src)/lex.zconf.c_shipped
+
 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
 
 ifeq ($(qconf-target),1)

scripts/mod/modpost.c

@@ -47,11 +47,10 @@ warn(const char *fmt, ...)
 	va_end(arglist);
 }
 
-void *do_nofail(void *ptr, const char *file, int line, const char *expr)
+void *do_nofail(void *ptr, const char *expr)
 {
 	if (!ptr) {
-		fatal("Memory allocation failure %s line %d: %s.\n",
-		      file, line, expr);
+		fatal("modpost: Memory allocation failure: %s.\n", expr);
 	}
 	return ptr;
 }

scripts/mod/modpost.h

@@ -53,8 +53,8 @@ static inline void __endian(const void *src, void *dest, unsigned int size)
 
 #endif
 
-#define NOFAIL(ptr)   do_nofail((ptr), __FILE__, __LINE__, #ptr)
-void *do_nofail(void *ptr, const char *file, int line, const char *expr);
+#define NOFAIL(ptr)   do_nofail((ptr), #ptr)
+void *do_nofail(void *ptr, const char *expr);
 
 struct buffer {
 	char *p;

scripts/namespace.pl

@@ -406,6 +406,11 @@ sub resolve_external_references
 					&& $name !~ /^__.*per_cpu_end/
 					&& $name !~ /^__alt_instructions/
 					&& $name !~ /^__setup_/
+					&& $name !~ /^jiffies/
+					&& $name !~ /^__mod_timer/
+					&& $name !~ /^__mod_page_state/
+					&& $name !~ /^init_module/
+					&& $name !~ /^cleanup_module/
 				) {
 					printf "Cannot resolve ";
 					printf "weak " if ($type eq "w");