#
# Kbuild for top-level directory of the kernel
# This file takes care of the following:
-# 1) Generate asm-offsets.h
+# 1) Generate bounds.h
+# 2) Generate asm-offsets.h (may need bounds.h)
+# 3) Check for missing system calls
#####
-# 1) Generate asm-offsets.h
+# 1) Generate bounds.h
+
+bounds-file := include/linux/bounds.h
+
+always := $(bounds-file)
+targets := $(bounds-file) kernel/bounds.s
+
+quiet_cmd_bounds = GEN $@
+define cmd_bounds
+ (set -e; \
+ echo "#ifndef __LINUX_BOUNDS_H__"; \
+ echo "#define __LINUX_BOUNDS_H__"; \
+ echo "/*"; \
+ echo " * DO NOT MODIFY."; \
+ echo " *"; \
+ echo " * This file was generated by Kbuild"; \
+ echo " *"; \
+ echo " */"; \
+ echo ""; \
+ sed -ne $(sed-y) $<; \
+ echo ""; \
+ echo "#endif" ) > $@
+endef
+
+# We use internal kbuild rules to avoid the "is up to date" message from make
+kernel/bounds.s: kernel/bounds.c FORCE
+ $(Q)mkdir -p $(dir $@)
+ $(call if_changed_dep,cc_s_c)
+
+$(obj)/$(bounds-file): kernel/bounds.s Kbuild
+ $(Q)mkdir -p $(dir $@)
+ $(call cmd,bounds)
+
+#####
+# 2) Generate asm-offsets.h
#
-offsets-file := include/asm-$(ARCH)/asm-offsets.h
+offsets-file := include/asm-$(SRCARCH)/asm-offsets.h
+
+always += $(offsets-file)
+targets += $(offsets-file)
+targets += arch/$(SRCARCH)/kernel/asm-offsets.s
-always := $(offsets-file)
-targets := $(offsets-file)
-targets += arch/$(ARCH)/kernel/asm-offsets.s
# Default sed regexp - multiline due to syntax constraints
define sed-y
- "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"
+ "/^->/{s:->#\(.*\):/* \1 */:; \
+ s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
+ s:->::; p;}"
endef
-# Override default regexp for specific architectures
-sed-$(CONFIG_MIPS) := "/^@@@/{s/^@@@//; s/ \#.*\$$//; p;}"
quiet_cmd_offsets = GEN $@
define cmd_offsets
echo "/*"; \
echo " * DO NOT MODIFY."; \
echo " *"; \
- echo " * This file was generated by $(srctree)/Kbuild"; \
+ echo " * This file was generated by Kbuild"; \
echo " *"; \
echo " */"; \
echo ""; \
endef
# We use internal kbuild rules to avoid the "is up to date" message from make
-arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE
+arch/$(SRCARCH)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c \
+ $(obj)/$(bounds-file) FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,cc_s_c)
-$(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
+$(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s Kbuild
$(Q)mkdir -p $(dir $@)
$(call cmd,offsets)
+#####
+# 3) Check for missing system calls
+#
+
+quiet_cmd_syscalls = CALL $<
+ cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags)
+
+PHONY += missing-syscalls
+missing-syscalls: scripts/checksyscalls.sh FORCE
+ $(call cmd,syscalls)
+
+# Delete all targets during make clean
+clean-files := $(addprefix $(objtree)/,$(filter-out $(bounds-file) $(offsets-file),$(targets)))