From f79eb83b3af419c4e079c8312b3c70fb6391117a Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 17 Oct 2007 18:04:32 +0200 Subject: [PATCH] x86: Install unstripped copy of 64bit vdso to disk This keeps an unstripped copy of the 64bit 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 Signed-off-by: Andi Kleen Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/vdso/Makefile | 17 ++++++++++++++++- arch/x86_64/Makefile | 1 + 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index dcd6bb9e0bb..7a2ba458393 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -13,7 +13,7 @@ vobjs := $(foreach F,$(vobjs-y),$(obj)/$F) $(obj)/vdso.o: $(obj)/vdso.so -targets += vdso.so vdso.lds $(vobjs-y) vdso-syms.o +targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y) vdso-syms.o # The DSO images are built using a special linker script. quiet_cmd_syscall = SYSCALL $@ @@ -26,12 +26,19 @@ vdso-flags = -fPIC -shared -Wl,-soname=linux-vdso.so.1 \ $(call ld-option, -Wl$(comma)--hash-style=sysv) \ -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 SYSCFLAGS_vdso.so = $(vdso-flags) +SYSCFLAGS_vdso.so.dbg = $(vdso-flags) $(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so $(obj)/vdso.so: $(src)/vdso.lds $(vobjs) FORCE + +$(obj)/vdso.so.dbg: $(src)/vdso.lds $(vobjs) FORCE $(call if_changed,syscall) +$(obj)/%.so: OBJCOPYFLAGS := -S +$(obj)/%.so: $(obj)/%.so.dbg FORCE + $(call if_changed,objcopy) + CFL := $(PROFILING) -mcmodel=small -fPIC -g0 -O2 -fasynchronous-unwind-tables -m64 $(obj)/vclock_gettime.o: KBUILD_CFLAGS = $(CFL) @@ -47,3 +54,11 @@ $(obj)/built-in.o: ld_flags += -R $(obj)/vdso-syms.o SYSCFLAGS_vdso-syms.o = -r -d $(obj)/vdso-syms.o: $(src)/vdso.lds $(vobjs) FORCE $(call if_changed,syscall) + +quiet_cmd_vdso_install = INSTALL $@ + cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ +vdso.so: + @mkdir -p $(MODLIB)/vdso + $(call cmd,vdso_install) + +vdso_install: vdso.so diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index d460bef2ab8..03e1ede27b8 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -117,6 +117,7 @@ vdso_install: ifeq ($(CONFIG_IA32_EMULATION),y) $(Q)$(MAKE) $(build)=arch/x86/ia32 $@ endif + $(Q)$(MAKE) $(build)=arch/x86/vdso $@ archclean: $(Q)rm -rf $(objtree)/arch/x86_64/boot -- 2.41.1