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authorRoland McGrath <roland@redhat.com>2007-10-17 18:04:32 +0200
committerThomas Gleixner <tglx@inhelltoy.tec.linutronix.de>2007-10-17 20:15:18 +0200
commitaf7e6a7464249251efb2c4f67124e4d022985994 (patch)
treee9065a1d8df5c0094d7a0eb258716f05910253ad
parent8957ecab029669f43512e53521e8b59ec6b07bdd (diff)
downloadop-kernel-dev-af7e6a7464249251efb2c4f67124e4d022985994.zip
op-kernel-dev-af7e6a7464249251efb2c4f67124e4d022985994.tar.gz
x86_64: install unstripped copies of compat vdso on disk
This keeps an unstripped copy of the vDSO images built before they are stripped and embedded in the kernel. The unstripped copies get installed in $(MODLIB)/vdso/ by "make install" (or you can explicitly use the subtarget "make vdso_install"). These files can be useful when they contain source-level debugging information. [ tglx: arch/x86 adaptation ] Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/ia32/Makefile25
-rw-r--r--arch/x86_64/Makefile7
2 files changed, 27 insertions, 5 deletions
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index cdae364..e2edda2 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -18,18 +18,35 @@ $(obj)/syscall32_syscall.o: \
$(foreach F,sysenter syscall,$(obj)/vsyscall-$F.so)
# Teach kbuild about targets
-targets := $(foreach F,sysenter syscall,vsyscall-$F.o vsyscall-$F.so)
+targets := $(foreach F,$(addprefix vsyscall-,sysenter syscall),\
+ $F.o $F.so $F.so.dbg)
# The DSO images are built using a special linker script
quiet_cmd_syscall = SYSCALL $@
- cmd_syscall = $(CC) -m32 -nostdlib -shared -s \
+ cmd_syscall = $(CC) -m32 -nostdlib -shared \
$(call ld-option, -Wl$(comma)--hash-style=sysv) \
-Wl,-soname=linux-gate.so.1 -o $@ \
-Wl,-T,$(filter-out FORCE,$^)
-$(obj)/vsyscall-sysenter.so $(obj)/vsyscall-syscall.so: \
-$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
+$(obj)/%.so: OBJCOPYFLAGS := -S
+$(obj)/%.so: $(obj)/%.so.dbg FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/vsyscall-sysenter.so.dbg $(obj)/vsyscall-syscall.so.dbg: \
+$(obj)/vsyscall-%.so.dbg: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
$(call if_changed,syscall)
AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32
AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32
+
+vdsos := vdso32-sysenter.so vdso32-syscall.so
+
+quiet_cmd_vdso_install = INSTALL $@
+ cmd_vdso_install = cp $(@:vdso32-%.so=$(obj)/vsyscall-%.so.dbg) \
+ $(MODLIB)/vdso/$@
+
+$(vdsos):
+ @mkdir -p $(MODLIB)/vdso
+ $(call cmd,vdso_install)
+
+vdso_install: $(vdsos)
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 9daa32d..d460bef 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -110,9 +110,14 @@ bzdisk: vmlinux
fdimage fdimage144 fdimage288 isoimage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
-install:
+install: vdso_install
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
+vdso_install:
+ifeq ($(CONFIG_IA32_EMULATION),y)
+ $(Q)$(MAKE) $(build)=arch/x86/ia32 $@
+endif
+
archclean:
$(Q)rm -rf $(objtree)/arch/x86_64/boot
$(Q)$(MAKE) $(clean)=$(boot)
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