kconfig: Make a variable local in streamline_config.pl
[linux-3.10.git] / scripts / Makefile.build
index 67fb453..0b94d2f 100644 (file)
@@ -27,12 +27,15 @@ ccflags-y  :=
 cppflags-y :=
 ldflags-y  :=
 
-# Read .config if it exist, otherwise ignore
+subdir-asflags-y :=
+subdir-ccflags-y :=
+
+# Read auto.conf if it exists, otherwise ignore
 -include include/config/auto.conf
 
 include scripts/Kbuild.include
 
-# For backward compatibility check that these variables does not change
+# For backward compatibility check that these variables do not change
 save-cflags := $(CFLAGS)
 
 # The filename Kbuild has precedence over Makefile
@@ -55,7 +58,7 @@ hostprogs-y += $(host-progs)
 endif
 endif
 
-# Do not include host rules unles needed
+# Do not include host rules unless needed
 ifneq ($(hostprogs-y)$(hostprogs-m),)
 include scripts/Makefile.host
 endif
@@ -112,13 +115,13 @@ endif
 # ---------------------------------------------------------------------------
 
 # Default is built-in, unless we know otherwise
-modkern_cflags := $(CFLAGS_KERNEL)
+modkern_cflags = $(if $(part-of-module), $(CFLAGS_MODULE), $(CFLAGS_KERNEL))
 quiet_modtag := $(empty)   $(empty)
 
-$(real-objs-m)        : modkern_cflags := $(CFLAGS_MODULE)
-$(real-objs-m:.o=.i)  : modkern_cflags := $(CFLAGS_MODULE)
-$(real-objs-m:.o=.s)  : modkern_cflags := $(CFLAGS_MODULE)
-$(real-objs-m:.o=.lst): modkern_cflags := $(CFLAGS_MODULE)
+$(real-objs-m)        : part-of-module := y
+$(real-objs-m:.o=.i)  : part-of-module := y
+$(real-objs-m:.o=.s)  : part-of-module := y
+$(real-objs-m:.o=.lst): part-of-module := y
 
 $(real-objs-m)        : quiet_modtag := [M]
 $(real-objs-m:.o=.i)  : quiet_modtag := [M]
@@ -151,14 +154,20 @@ cmd_cc_i_c       = $(CPP) $(c_flags)   -o $@ $<
 $(obj)/%.i: $(src)/%.c FORCE
        $(call if_changed_dep,cc_i_c)
 
+cmd_gensymtypes =                                                           \
+    $(CPP) -D__GENKSYMS__ $(c_flags) $< |                                   \
+    $(GENKSYMS) -T $@ -a $(ARCH)                                            \
+     $(if $(KBUILD_PRESERVE),-p)                                            \
+     $(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null)))
+
 quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
-cmd_cc_symtypes_c         = \
-               $(CPP) -D__GENKSYMS__ $(c_flags) $<                     \
-               | $(GENKSYMS) -T $@ >/dev/null;                         \
-               test -s $@ || rm -f $@
+cmd_cc_symtypes_c =                                                         \
+    set -e;                                                                 \
+    $(call cmd_gensymtypes, true) >/dev/null;                               \
+    test -s $@ || rm -f $@
 
 $(obj)/%.symtypes : $(src)/%.c FORCE
-       $(call if_changed_dep,cc_symtypes_c)
+       $(call cmd,cc_symtypes_c)
 
 # C (.c) files
 # The C file is compiled and updated dependency information is generated.
@@ -185,10 +194,8 @@ else
 cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
 cmd_modversions =                                                      \
        if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then     \
-               $(CPP) -D__GENKSYMS__ $(c_flags) $<                     \
-               | $(GENKSYMS) $(if $(KBUILD_SYMTYPES),                  \
-                             -T $(@D)/$(@F:.o=.symtypes)) -a $(ARCH)   \
-               > $(@D)/.tmp_$(@F:.o=.ver);                             \
+               $(call cmd_gensymtypes, $(KBUILD_SYMTYPES))             \
+                   > $(@D)/.tmp_$(@F:.o=.ver);                         \
                                                                        \
                $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F)              \
                        -T $(@D)/.tmp_$(@F:.o=.ver);                    \
@@ -198,10 +205,20 @@ cmd_modversions =                                                 \
        fi;
 endif
 
+ifdef CONFIG_FTRACE_MCOUNT_RECORD
+cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
+       "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
+       "$(if $(CONFIG_64BIT),64,32)" \
+       "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" "$(NM)" "$(RM)" "$(MV)" \
+       "$(if $(part-of-module),1,0)" "$(@)";
+endif
+
 define rule_cc_o_c
        $(call echo-cmd,checksrc) $(cmd_checksrc)                         \
        $(call echo-cmd,cc_o_c) $(cmd_cc_o_c);                            \
        $(cmd_modversions)                                                \
+       $(call echo-cmd,record_mcount)                                    \
+       $(cmd_record_mcount)                                              \
        scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' >    \
                                                      $(dot-target).tmp;  \
        rm -f $(depfile);                                                 \
@@ -254,7 +271,8 @@ targets += $(extra-y) $(MAKECMDGOALS) $(always)
 # Linker scripts preprocessor (.lds.S -> .lds)
 # ---------------------------------------------------------------------------
 quiet_cmd_cpp_lds_S = LDS     $@
-      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -D__ASSEMBLY__ -o $@ $<
+      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
+                            -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
 
 $(obj)/%.lds: $(src)/%.lds.S FORCE
        $(call if_changed_dep,cpp_lds_S)