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That's due to LLD converting almost all symbols from global to local in the last linking step, and thus confusing tools/symbols into adding a file prefix to all text symbols, the results looks like: Xen call trace: [] R xxhash64.c#__start_xen+0x3938/0x39c0 [] F __high_start+0x94/0xa0 In order to workaround this create a list of global symbols prior to the linking step, and use objcopy to convert the symbols in the final binary back to global before processing with tools/symbols. Signed-off-by: Roger Pau Monn=C3=A9 --- I haven't found a way to prevent LLD from converting the symbols, so I've come up with this rather crappy workaround. Not applied to EFI, partially because I don't have an environment with LLD capable of generating the EFI binary. Obtaining the global symbol list could likely be a target on itself, if it is to be shared between the ELF and the EFI binary generation. --- xen/arch/x86/Makefile | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/xen/arch/x86/Makefile b/xen/arch/x86/Makefile index 177a2ff742..f3817827bc 100644 --- a/xen/arch/x86/Makefile +++ b/xen/arch/x86/Makefile @@ -134,24 +134,34 @@ $(TARGET): $(TARGET)-syms $(efi-y) $(obj)/boot/mkelf32 CFLAGS-$(XEN_BUILD_EFI) +=3D -DXEN_BUILD_EFI =20 $(TARGET)-syms: $(objtree)/prelink.o $(obj)/xen.lds + # Dump global text symbols before the linking step + $(NM) -pa --format=3Dbsd $< | awk '{ if($$2 =3D=3D "T") print $$3}' \ + > $(@D)/.$(@F).global-syms $(LD) $(XEN_LDFLAGS) -T $(obj)/xen.lds -N $< $(build_id_linker) \ - $(objtree)/common/symbols-dummy.o -o $(@D)/.$(@F).0 + $(objtree)/common/symbols-dummy.o -o $(@D)/.$(@F).0.tmp + # LLVM LD has converted global symbols into local ones as part of the + # linking step, convert those back to global before using tools/symbols. + $(OBJCOPY) --globalize-symbols=3D$(@D)/.$(@F).global-syms \ + $(@D)/.$(@F).0.tmp $(@D)/.$(@F).0 $(NM) -pa --format=3Dsysv $(@D)/.$(@F).0 \ | $(objtree)/tools/symbols $(all_symbols) --sysv --sort \ >$(@D)/.$(@F).0.S $(MAKE) $(build)=3D$(@D) $(@D)/.$(@F).0.o $(LD) $(XEN_LDFLAGS) -T $(obj)/xen.lds -N $< $(build_id_linker) \ - $(@D)/.$(@F).0.o -o $(@D)/.$(@F).1 + $(@D)/.$(@F).0.o -o $(@D)/.$(@F).1.tmp + $(OBJCOPY) --globalize-symbols=3D$(@D)/.$(@F).global-syms \ + $(@D)/.$(@F).1.tmp $(@D)/.$(@F).1 $(NM) -pa --format=3Dsysv $(@D)/.$(@F).1 \ | $(objtree)/tools/symbols $(all_symbols) --sysv --sort $(syms-warn-dup-= y) \ >$(@D)/.$(@F).1.S $(MAKE) $(build)=3D$(@D) $(@D)/.$(@F).1.o $(LD) $(XEN_LDFLAGS) -T $(obj)/xen.lds -N $< $(build_id_linker) \ - $(orphan-handling-y) $(@D)/.$(@F).1.o -o $@ + $(orphan-handling-y) $(@D)/.$(@F).1.o -o $@.tmp + $(OBJCOPY) --globalize-symbols=3D$(@D)/.$(@F).global-syms $@.tmp $@ $(NM) -pa --format=3Dsysv $(@D)/$(@F) \ | $(objtree)/tools/symbols --all-symbols --xensyms --sysv --sort \ >$(@D)/$(@F).map - rm -f $(@D)/.$(@F).[0-9]* $(@D)/..$(@F).[0-9]* + rm -f $(@D)/.$(@F).[0-9]* $(@D)/..$(@F).[0-9]* $(@D)/.$(@F).global-syms ifeq ($(CONFIG_XEN_IBT),y) $(SHELL) $(srctree)/tools/check-endbr.sh $@ endif @@ -266,6 +276,7 @@ $(obj)/xen.lds $(obj)/efi.lds: $(src)/xen.lds.S FORCE clean-files :=3D \ include/asm/asm-macros.* \ $(objtree)/.xen-syms.[0-9]* \ + $(objtree)/.xen-syms.global-syms \ $(objtree)/.xen.elf32 \ $(objtree)/.xen.efi.[0-9]* \ efi/*.efi --=20 2.35.1