diff options
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index fd03d60f6c5a..850b611f4aba 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -63,7 +63,9 @@ ifneq ($(strip $(real-obj-y) $(need-builtin)),) builtin-target := $(obj)/built-in.a endif +ifdef CONFIG_MODULES modorder-target := $(obj)/modules.order +endif # We keep a list of all modules in $(MODVERDIR) @@ -104,7 +106,7 @@ modkern_cflags = \ quiet_modtag = $(if $(part-of-module),[M], ) quiet_cmd_cc_s_c = CC $(quiet_modtag) $@ -cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $< + cmd_cc_s_c = $(CC) $(filter-out $(DEBUG_CFLAGS), $(c_flags)) $(DISABLE_LTO) -fverbose-asm -S -o $@ $< $(obj)/%.s: $(src)/%.c FORCE $(call if_changed_dep,cc_s_c) @@ -118,7 +120,7 @@ $(obj)/%.i: $(src)/%.c FORCE # These mirror gensymtypes_S and co below, keep them in synch. cmd_gensymtypes_c = \ $(CPP) -D__GENKSYMS__ $(c_flags) $< | \ - $(GENKSYMS) $(if $(1), -T $(2)) \ + scripts/genksyms/genksyms $(if $(1), -T $(2)) \ $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \ $(if $(KBUILD_PRESERVE),-p) \ -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null)) @@ -312,13 +314,13 @@ $(real-obj-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE) # # These mirror gensymtypes_c and co above, keep them in synch. cmd_gensymtypes_S = \ - (echo "\#include <linux/kernel.h>" ; \ + { 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);/' ) | \ + sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ; } | \ $(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \ - $(GENKSYMS) $(if $(1), -T $(2)) \ + scripts/genksyms/genksyms $(if $(1), -T $(2)) \ $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \ $(if $(KBUILD_PRESERVE),-p) \ -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null)) @@ -394,17 +396,12 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler $(sort $(subdir-obj-y)): $(subdir-ym) ; # -# Rule to compile a set of .o files into one .o file +# Rule to compile a set of .o files into one .a file (without symbol table) # ifdef builtin-target -# built-in.a archives are made with no symbol table or index which -# makes them small and fast, but unable to be used by the linker. -# scripts/link-vmlinux.sh builds an aggregate built-in.a with a symbol -# table and index. quiet_cmd_ar_builtin = AR $@ - cmd_ar_builtin = rm -f $@; \ - $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(filter $(real-obj-y), $^) + cmd_ar_builtin = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(real-prereqs) $(builtin-target): $(real-obj-y) FORCE $(call if_changed,ar_builtin) @@ -426,13 +423,13 @@ $(modorder-target): $(subdir-ym) FORCE $(Q)(cat /dev/null; $(modorder-cmds)) > $@ # -# Rule to compile a set of .o files into one .a file +# Rule to compile a set of .o files into one .a file (with symbol table) # ifdef lib-target quiet_cmd_link_l_target = AR $@ # lib target archives do get a symbol table and index -cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(lib-y) +cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs) $(lib-target): $(lib-y) FORCE $(call if_changed,link_l_target) @@ -457,6 +454,10 @@ targets += $(obj)/lib-ksyms.o endif +# NOTE: +# Do not replace $(filter %.o,^) with $(real-prereqs). When a single object +# module is turned into a multi object module, $^ will contain header file +# dependencies recorded in the .*.cmd file. quiet_cmd_link_multi-m = LD [M] $@ cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(filter %.o,$^) $(cmd_secanalysis) |