leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

x86: Install unstripped copy of 64bit vdso to disk

Browse Source 
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>
This commit is contained in:
Roland McGrath 2007-10-17 18:04:32 +02:00 committed by Thomas Gleixner
parent af7e6a7464
commit f79eb83b3a
2 changed files with 17 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/x86/vdso/Makefile
View File

@ -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

1
arch/x86_64/Makefile
View File

@ -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