forked from Minki/linux
Merge branch 'kbuild/rc-fixes' into kbuild/misc
This commit is contained in:
Michal Marek
commit
ff5b1ce6b2
5
Makefile
5
Makefile
@ -399,11 +399,12 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
|
||||
-fno-strict-aliasing -fno-common \
|
||||
-Werror-implicit-function-declaration \
|
||||
-Wno-format-security \
|
||||
-std=gnu89
|
||||
-std=gnu89 $(call cc-option,-fno-PIE)
|
||||
|
||||
|
||||
KBUILD_AFLAGS_KERNEL :=
|
||||
KBUILD_CFLAGS_KERNEL :=
|
||||
KBUILD_AFLAGS := -D__ASSEMBLY__
|
||||
KBUILD_AFLAGS := -D__ASSEMBLY__ $(call cc-option,-fno-PIE)
|
||||
KBUILD_AFLAGS_MODULE := -DMODULE
|
||||
KBUILD_CFLAGS_MODULE := -DMODULE
|
||||
KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
|
||||
|
||||
@ -16,6 +16,7 @@ KCOV_INSTRUMENT := n
|
||||
|
||||
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
|
||||
KBUILD_CFLAGS += -m$(BITS)
|
||||
KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
|
||||
|
||||
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
|
||||
$(call if_changed,ld)
|
||||
|
||||
@ -159,7 +159,8 @@ cmd_cpp_i_c = $(CPP) $(c_flags) -o $@ $<
|
||||
$(obj)/%.i: $(src)/%.c FORCE
|
||||
$(call if_changed_dep,cpp_i_c)
|
||||
|
||||
cmd_gensymtypes = \
|
||||
# These mirror gensymtypes_S and co below, keep them in synch.
|
||||
cmd_gensymtypes_c = \
|
||||
$(CPP) -D__GENKSYMS__ $(c_flags) $< | \
|
||||
$(GENKSYMS) $(if $(1), -T $(2)) \
|
||||
$(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX)) \
|
||||
@ -169,7 +170,7 @@ cmd_gensymtypes = \
|
||||
quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
|
||||
cmd_cc_symtypes_c = \
|
||||
set -e; \
|
||||
$(call cmd_gensymtypes,true,$@) >/dev/null; \
|
||||
$(call cmd_gensymtypes_c,true,$@) >/dev/null; \
|
||||
test -s $@ || rm -f $@
|
||||
|
||||
$(obj)/%.symtypes : $(src)/%.c FORCE
|
||||
@ -198,9 +199,10 @@ else
|
||||
# the actual value of the checksum generated by genksyms
|
||||
|
||||
cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
|
||||
cmd_modversions = \
|
||||
|
||||
cmd_modversions_c = \
|
||||
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
|
||||
$(call cmd_gensymtypes,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
||||
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
||||
> $(@D)/.tmp_$(@F:.o=.ver); \
|
||||
\
|
||||
$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
|
||||
@ -268,13 +270,14 @@ endif # CONFIG_STACK_VALIDATION
|
||||
define rule_cc_o_c
|
||||
$(call echo-cmd,checksrc) $(cmd_checksrc) \
|
||||
$(call cmd_and_fixdep,cc_o_c) \
|
||||
$(cmd_modversions) \
|
||||
$(cmd_modversions_c) \
|
||||
$(cmd_objtool) \
|
||||
$(call echo-cmd,record_mcount) $(cmd_record_mcount)
|
||||
endef
|
||||
|
||||
define rule_as_o_S
|
||||
$(call cmd_and_fixdep,as_o_S) \
|
||||
$(cmd_modversions_S) \
|
||||
$(cmd_objtool)
|
||||
endef
|
||||
|
||||
@ -314,6 +317,39 @@ modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
|
||||
$(real-objs-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
|
||||
$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
|
||||
|
||||
# .S file exports must have their C prototypes defined in asm/asm-prototypes.h
|
||||
# or a file that it includes, in order to get versioned symbols. We build a
|
||||
# dummy C file that includes asm-prototypes and the EXPORT_SYMBOL lines from
|
||||
# the .S file (with trailing ';'), and run genksyms on that, to extract vers.
|
||||
#
|
||||
# This is convoluted. The .S file must first be preprocessed to run guards and
|
||||
# expand names, then the resulting exports must be constructed into plain
|
||||
# EXPORT_SYMBOL(symbol); to build our dummy C file, and that gets preprocessed
|
||||
# to make the genksyms input.
|
||||
#
|
||||
# These mirror gensymtypes_c and co above, keep them in synch.
|
||||
cmd_gensymtypes_S = \
|
||||
(echo "\#include <linux/kernel.h>" ; \
|
||||
echo "\#include <asm/asm-prototypes.h>" ; \
|
||||
$(CPP) $(a_flags) $< | \
|
||||
grep "\<___EXPORT_SYMBOL\>" | \
|
||||
sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ) | \
|
||||
$(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
|
||||
$(GENKSYMS) $(if $(1), -T $(2)) \
|
||||
$(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX)) \
|
||||
$(if $(KBUILD_PRESERVE),-p) \
|
||||
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
|
||||
|
||||
quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
|
||||
cmd_cc_symtypes_S = \
|
||||
set -e; \
|
||||
$(call cmd_gensymtypes_S,true,$@) >/dev/null; \
|
||||
test -s $@ || rm -f $@
|
||||
|
||||
$(obj)/%.symtypes : $(src)/%.S FORCE
|
||||
$(call cmd,cc_symtypes_S)
|
||||
|
||||
|
||||
quiet_cmd_cpp_s_S = CPP $(quiet_modtag) $@
|
||||
cmd_cpp_s_S = $(CPP) $(a_flags) -o $@ $<
|
||||
|
||||
@ -321,7 +357,37 @@ $(obj)/%.s: $(src)/%.S FORCE
|
||||
$(call if_changed_dep,cpp_s_S)
|
||||
|
||||
quiet_cmd_as_o_S = AS $(quiet_modtag) $@
|
||||
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
|
||||
|
||||
ifndef CONFIG_MODVERSIONS
|
||||
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
|
||||
|
||||
else
|
||||
|
||||
ASM_PROTOTYPES := $(wildcard $(srctree)/arch/$(SRCARCH)/include/asm/asm-prototypes.h)
|
||||
|
||||
ifeq ($(ASM_PROTOTYPES),)
|
||||
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
|
||||
|
||||
else
|
||||
|
||||
# versioning matches the C process described above, with difference that
|
||||
# we parse asm-prototypes.h C header to get function definitions.
|
||||
|
||||
cmd_as_o_S = $(CC) $(a_flags) -c -o $(@D)/.tmp_$(@F) $<
|
||||
|
||||
cmd_modversions_S = \
|
||||
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
|
||||
$(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
||||
> $(@D)/.tmp_$(@F:.o=.ver); \
|
||||
\
|
||||
$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
|
||||
-T $(@D)/.tmp_$(@F:.o=.ver); \
|
||||
rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
|
||||
else \
|
||||
mv -f $(@D)/.tmp_$(@F) $@; \
|
||||
fi;
|
||||
endif
|
||||
endif
|
||||
|
||||
$(obj)/%.o: $(src)/%.S $(objtool_obj) FORCE
|
||||
$(call if_changed_rule,as_o_S)
|
||||
@ -430,6 +496,9 @@ cmd_export_list = $(OBJDUMP) -h $< | \
|
||||
|
||||
$(obj)/lib-ksyms.o: $(lib-target) FORCE
|
||||
$(call if_changed,export_list)
|
||||
|
||||
targets += $(obj)/lib-ksyms.o
|
||||
|
||||
endif
|
||||
|
||||
#
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
#!/bin/sh
|
||||
|
||||
echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
|
||||
echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
|
||||
if [ "$?" -eq "0" ] ; then
|
||||
echo y
|
||||
else
|
||||
|
||||
@ -51,7 +51,7 @@ set_debarch() {
|
||||
debarch=hppa ;;
|
||||
mips*)
|
||||
debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
|
||||
arm64)
|
||||
aarch64|arm64)
|
||||
debarch=arm64 ;;
|
||||
arm*)
|
||||
if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
|
||||
|
||||
Loading…
Reference in New Issue
Block a user