Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

Pull x86 build updates from Ingo Molnar:
 "A handful of build system (Makefile, linker script) cleanups by
  Masahiro Yamada"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/build/vdso: Put generated linker scripts to $(obj)/
  x86/build/vdso: Remove unnecessary export in Makefile
  x86/build/vdso: Remove unused $(vobjs-nox32) in Makefile
  x86/build: Remove no-op macro VMLINUX_SYMBOL()

diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index d998a48..261802b 100644 (file)
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -44,14 +44,14 @@ obj-y += $(vdso_img_objs)
 targets += $(vdso_img_cfiles)
 targets += $(vdso_img_sodbg) $(vdso_img-y:%=vdso%.so)
 
-export CPPFLAGS_vdso.lds += -P -C
+CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
                        -Wl,--no-undefined \
                        -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 \
                        $(DISABLE_LTO)
 
-$(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
+$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE
        $(call if_changed,vdso)
 
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi -I$(srctree)/arch/$(SUBARCH)/include/uapi
@@ -100,11 +100,8 @@ VDSO_LDFLAGS_vdsox32.lds = -Wl,-m,elf32_x86_64 \
                           -Wl,-z,max-page-size=4096 \
                           -Wl,-z,common-page-size=4096
 
-# 64-bit objects to re-brand as x32
-vobjs64-for-x32 := $(filter-out $(vobjs-nox32),$(vobjs-y))
-
 # x32-rebranded versions
-vobjx32s-y := $(vobjs64-for-x32:.o=-x32.o)
+vobjx32s-y := $(vobjs-y:.o=-x32.o)
 
 # same thing, but in the output directory
 vobjx32s := $(foreach F,$(vobjx32s-y),$(obj)/$F)
@@ -122,7 +119,7 @@ $(obj)/%.so: OBJCOPYFLAGS := -S
 $(obj)/%.so: $(obj)/%.so.dbg
        $(call if_changed,objcopy)
 
-$(obj)/vdsox32.so.dbg: $(src)/vdsox32.lds $(vobjx32s) FORCE
+$(obj)/vdsox32.so.dbg: $(obj)/vdsox32.lds $(vobjx32s) FORCE
        $(call if_changed,vdso)
 
 CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 795f3a8..5e1458f 100644 (file)
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -117,11 +117,11 @@ SECTIONS
 
 #ifdef CONFIG_X86_64
                . = ALIGN(PAGE_SIZE);
-               VMLINUX_SYMBOL(__entry_trampoline_start) = .;
+               __entry_trampoline_start = .;
                _entry_trampoline = .;
                *(.entry_trampoline)
                . = ALIGN(PAGE_SIZE);
-               VMLINUX_SYMBOL(__entry_trampoline_end) = .;
+               __entry_trampoline_end = .;
                ASSERT(. - _entry_trampoline == PAGE_SIZE, "entry trampoline is too big");
 #endif
 

diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index 1000335..b2d6967 100644 (file)
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -23,14 +23,14 @@ $(obj)/vdso.o: $(obj)/vdso.so
 
 targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y)
 
-export CPPFLAGS_vdso.lds += -P -C
+CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
        -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
 
 $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
 
-$(obj)/vdso.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
+$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE
        $(call if_changed,vdso)
 
 $(obj)/%.so: OBJCOPYFLAGS := -S