[PATCH] get rid of the last symlink in uml build

Al Viro
2008-12-17T06:13:10Z

We need to make asm-offsets.h contents visible for objects built
with userland headers. Instead of creating a symlink, just have the
file with equivalent include (relative to location of header) created
once.

That kills the last symlink used in arch/um builds. Have fun...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
diff --git a/arch/um/Makefile b/arch/um/Makefile
index d944c34..3fd7e45 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -22,10 +22,11 @@ MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas

include $(srctree)/$(ARCH_DIR)/Makefile-skas

-ARCH_INCLUDE := -I$(srctree)/$(ARCH_DIR)/include/shared
+SHARED_HEADERS := $(ARCH_DIR)/include/shared
+ARCH_INCLUDE := -I$(srctree)/$(SHARED_HEADERS)
ARCH_INCLUDE += -I$(srctree)/$(ARCH_DIR)/sys-$(SUBARCH)/shared
ifneq ($(KBUILD_SRC),)
-ARCH_INCLUDE += -I$(ARCH_DIR)/include/shared # for two generated files
+ARCH_INCLUDE += -I$(SHARED_HEADERS)
endif
KBUILD_CPPFLAGS += -I$(srctree)/$(ARCH_DIR)/sys-$(SUBARCH)

@@ -85,8 +86,8 @@ endef

KBUILD_KCONFIG := arch/um/Kconfig.$(HEADER_ARCH)

-archprepare: $(ARCH_DIR)/include/shared/user_constants.h
-prepare: $(ARCH_DIR)/include/shared/kern_constants.h
+archprepare: $(SHARED_HEADERS)/user_constants.h
+prepare: $(SHARED_HEADERS)/kern_constants.h

LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
@@ -119,17 +120,13 @@ endef
# When cleaning we don't include .config, so we don't include
# TT or skas makefiles and don't clean skas_ptregs.h.
CLEAN_FILES += linux x.i gmon.out \
- $(ARCH_DIR)/include/shared/user_constants.h \
- $(ARCH_DIR)/include/shared/kern_constants.h
+ $(SHARED_HEADERS)/user_constants.h \
+ $(SHARED_HEADERS)/kern_constants.h

archclean:
@find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \
-o -name '*.gcov' \) -type f -print | xargs rm -f

-$(objtree)/$(ARCH_DIR)/include/shared:
- @echo ' MKDIR $@'
- $(Q)mkdir -p $@
-
# Generated files

$(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s: FORCE
@@ -148,11 +145,11 @@ define filechk_gen-asm-offsets
echo ""; )
endef

-$(ARCH_DIR)/include/shared/user_constants.h: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s
+$(SHARED_HEADERS)/user_constants.h: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s
$(call filechk,gen-asm-offsets)

-$(ARCH_DIR)/include/shared/kern_constants.h: $(objtree)/$(ARCH_DIR)/include/shared
- @echo ' SYMLINK $@'
- $(Q)ln -sf ../../../../include/asm/asm-offsets.h $@
+$(SHARED_HEADERS)/kern_constants.h:
+ $(Q)mkdir -p $(dir $@)
+ $(Q)echo '#include "../../../../include/asm/asm-offsets.h"' >$@

export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH