summaryrefslogtreecommitdiffstats
path: root/arch/x86/vdso
diff options
context:
space:
mode:
authorRoland McGrath2007-10-17 18:04:32 +0200
committerThomas Gleixner2007-10-17 20:15:20 +0200
commitf79eb83b3af419c4e079c8312b3c70fb6391117a (patch)
tree3b4484a7191eaff65b600bda491a32ccc67aa31a /arch/x86/vdso
parentx86_64: install unstripped copies of compat vdso on disk (diff)
downloadkernel-qcow2-linux-f79eb83b3af419c4e079c8312b3c70fb6391117a.tar.gz
kernel-qcow2-linux-f79eb83b3af419c4e079c8312b3c70fb6391117a.tar.xz
kernel-qcow2-linux-f79eb83b3af419c4e079c8312b3c70fb6391117a.zip
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 <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>
Diffstat (limited to 'arch/x86/vdso')
-rw-r--r--arch/x86/vdso/Makefile17
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index dcd6bb9e0bb3..7a2ba4583939 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