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x86/um: fix vDSO installation

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The generic vDSO installation logic used by 'make vdso_install' requires
that $(vdso-install-y) is defined by the top-level architecture Makefile
and that it contains a path relative to the root of the tree.
For UML neither of these is satisfied.

Move the definition of $(vdso-install-y) to a place which is included by
the arch/um/Makefile and use the full relative path.

Fixes: f1c2bb8b99 ("um: implement a x86_64 vDSO")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20260318-um-vdso-install-v1-1-26a4ca5c4210@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Thomas Weißschuh
2026-03-18 22:03:26 +01:00
committed by Johannes Berg
parent 92d5c5c04e
commit d1895c15fc
2 changed files with 2 additions and 2 deletions
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2
arch/x86/Makefile.um
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@@ -60,4 +60,6 @@ ELF_FORMAT := elf64-x86-64
LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64
LINK-y += -m64
vdso-install-y += arch/x86/um/vdso/vdso.so.dbg
endif

2
arch/x86/um/vdso/Makefile
View File

@@ -3,8 +3,6 @@
# Building vDSO images for x86.
#
vdso-install-y += vdso.so
# files to link into the vdso
vobjs-y := vdso-note.o um_vdso.o