From: Sami Tolvanen <samitolvanen@google.com> To: Masahiro Yamada <masahiroy@kernel.org>, Steven Rostedt <rostedt@goodmis.org>, Will Deacon <will@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Paul E. McKenney" <paulmck@kernel.org>, Kees Cook <keescook@chromium.org>, Nick Desaulniers <ndesaulniers@google.com>, clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Sami Tolvanen <samitolvanen@google.com> Subject: [PATCH v8 03/16] kbuild: lto: fix module versioning Date: Tue, 1 Dec 2020 13:36:54 -0800 [thread overview] Message-ID: <20201201213707.541432-4-samitolvanen@google.com> (raw) In-Reply-To: <20201201213707.541432-1-samitolvanen@google.com> With CONFIG_MODVERSIONS, version information is linked into each compilation unit that exports symbols. With LTO, we cannot use this method as all C code is compiled into LLVM bitcode instead. This change collects symbol versions into .symversions files and merges them in link-vmlinux.sh where they are all linked into vmlinux.o at the same time. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> --- .gitignore | 1 + Makefile | 3 ++- arch/Kconfig | 1 - scripts/Makefile.build | 33 +++++++++++++++++++++++++++++++-- scripts/Makefile.modpost | 6 +++++- scripts/link-vmlinux.sh | 23 ++++++++++++++++++++++- 6 files changed, 61 insertions(+), 6 deletions(-) diff --git a/.gitignore b/.gitignore index d01cda8e1177..44e34991875e 100644 --- a/.gitignore +++ b/.gitignore @@ -41,6 +41,7 @@ *.so.dbg *.su *.symtypes +*.symversions *.tab.[ch] *.tar *.xz diff --git a/Makefile b/Makefile index f5cac2428efc..222ae96d179d 100644 --- a/Makefile +++ b/Makefile @@ -1829,7 +1829,8 @@ clean: $(clean-dirs) -o -name '.tmp_*.o.*' \ -o -name '*.c.[012]*.*' \ -o -name '*.ll' \ - -o -name '*.gcno' \) -type f -print | xargs rm -f + -o -name '*.gcno' \ + -o -name '*.*.symversions' \) -type f -print | xargs rm -f # Generate tags for editors # --------------------------------------------------------------------------- diff --git a/arch/Kconfig b/arch/Kconfig index 30907b554451..c3c13ec9a74c 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -633,7 +633,6 @@ config HAS_LTO_CLANG depends on !FTRACE_MCOUNT_USE_RECORDMCOUNT depends on !KASAN depends on !GCOV_KERNEL - depends on !MODVERSIONS help The compiler and Kconfig options support building with Clang's LTO. diff --git a/scripts/Makefile.build b/scripts/Makefile.build index ed74b2f986f7..eae2f5386a03 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -166,6 +166,15 @@ ifdef CONFIG_MODVERSIONS # the actual value of the checksum generated by genksyms # o remove .tmp_<file>.o to <file>.o +ifdef CONFIG_LTO_CLANG +# Generate .o.symversions files for each .o with exported symbols, and link these +# to the kernel and/or modules at the end. +cmd_modversions_c = \ + if $(NM) $@ 2>/dev/null | grep -q __ksymtab; then \ + $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \ + > $@.symversions; \ + fi; +else cmd_modversions_c = \ if $(OBJDUMP) -h $@ | grep -q __ksymtab; then \ $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \ @@ -177,6 +186,7 @@ cmd_modversions_c = \ rm -f $(@D)/.tmp_$(@F:.o=.ver); \ fi endif +endif ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT # compiler will not generate __mcount_loc use recordmcount or recordmcount.pl @@ -390,6 +400,18 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler $(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ; $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ; +# combine symversions for later processing +quiet_cmd_update_lto_symversions = SYMVER $@ +ifeq ($(CONFIG_LTO_CLANG) $(CONFIG_MODVERSIONS),y y) + cmd_update_lto_symversions = \ + rm -f $@.symversions \ + $(foreach n, $(filter-out FORCE,$^), \ + $(if $(wildcard $(n).symversions), \ + ; cat $(n).symversions >> $@.symversions)) +else + cmd_update_lto_symversions = echo >/dev/null +endif + # # Rule to compile a set of .o files into one .a file (without symbol table) # @@ -397,8 +419,11 @@ $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ; quiet_cmd_ar_builtin = AR $@ cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs) +quiet_cmd_ar_and_symver = AR $@ + cmd_ar_and_symver = $(cmd_update_lto_symversions); $(cmd_ar_builtin) + $(obj)/built-in.a: $(real-obj-y) FORCE - $(call if_changed,ar_builtin) + $(call if_changed,ar_and_symver) # # Rule to create modules.order file @@ -418,8 +443,11 @@ $(obj)/modules.order: $(obj-m) FORCE # # Rule to compile a set of .o files into one .a file (with symbol table) # +quiet_cmd_ar_lib = AR $@ + cmd_ar_lib = $(cmd_update_lto_symversions); $(cmd_ar) + $(obj)/lib.a: $(lib-y) FORCE - $(call if_changed,ar) + $(call if_changed,ar_lib) # NOTE: # Do not replace $(filter %.o,^) with $(real-prereqs). When a single object @@ -428,6 +456,7 @@ $(obj)/lib.a: $(lib-y) FORCE ifdef CONFIG_LTO_CLANG quiet_cmd_link_multi-m = AR [M] $@ cmd_link_multi-m = \ + $(cmd_update_lto_symversions); \ rm -f $@; \ $(AR) cDPrsT $@ $(filter %.o,$^) else diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 9ff8bfdb574d..066beffca09a 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -111,7 +111,11 @@ ifdef CONFIG_LTO_CLANG prelink-ext := .lto quiet_cmd_cc_lto_link_modules = LTO [M] $@ -cmd_cc_lto_link_modules = $(LD) $(ld_flags) -r -o $@ --whole-archive $^ +cmd_cc_lto_link_modules = \ + $(LD) $(ld_flags) -r -o $@ \ + $(shell [ -s $(@:.lto.o=.o.symversions) ] && \ + echo -T $(@:.lto.o=.o.symversions)) \ + --whole-archive $^ %.lto.o: %.o $(call if_changed,cc_lto_link_modules) diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 596507573a48..78e55fe7210b 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -43,11 +43,26 @@ info() fi } +# If CONFIG_LTO_CLANG is selected, collect generated symbol versions into +# .tmp_symversions.lds +gen_symversions() +{ + info GEN .tmp_symversions.lds + rm -f .tmp_symversions.lds + + for o in ${KBUILD_VMLINUX_OBJS} ${KBUILD_VMLINUX_LIBS}; do + if [ -f ${o}.symversions ]; then + cat ${o}.symversions >> .tmp_symversions.lds + fi + done +} + # Link of vmlinux.o used for section mismatch analysis # ${1} output file modpost_link() { local objects + local lds="" objects="--whole-archive \ ${KBUILD_VMLINUX_OBJS} \ @@ -57,6 +72,11 @@ modpost_link() --end-group" if [ -n "${CONFIG_LTO_CLANG}" ]; then + if [ -n "${CONFIG_MODVERSIONS}" ]; then + gen_symversions + lds="${lds} -T .tmp_symversions.lds" + fi + # This might take a while, so indicate that we're doing # an LTO link info LTO ${1} @@ -64,7 +84,7 @@ modpost_link() info LD ${1} fi - ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${objects} + ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${lds} ${objects} } objtool_link() @@ -242,6 +262,7 @@ cleanup() { rm -f .btf.* rm -f .tmp_System.map + rm -f .tmp_symversions.lds rm -f .tmp_vmlinux* rm -f System.map rm -f vmlinux -- 2.29.2.576.ga3fc446d84-goog
WARNING: multiple messages have this Message-ID (diff)
From: Sami Tolvanen <samitolvanen@google.com> To: Masahiro Yamada <masahiroy@kernel.org>, Steven Rostedt <rostedt@goodmis.org>, Will Deacon <will@kernel.org> Cc: linux-arch@vger.kernel.org, Kees Cook <keescook@chromium.org>, "Paul E. McKenney" <paulmck@kernel.org>, kernel-hardening@lists.openwall.com, Peter Zijlstra <peterz@infradead.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-kbuild@vger.kernel.org, Nick Desaulniers <ndesaulniers@google.com>, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, clang-built-linux@googlegroups.com, Sami Tolvanen <samitolvanen@google.com>, Josh Poimboeuf <jpoimboe@redhat.com>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 03/16] kbuild: lto: fix module versioning Date: Tue, 1 Dec 2020 13:36:54 -0800 [thread overview] Message-ID: <20201201213707.541432-4-samitolvanen@google.com> (raw) In-Reply-To: <20201201213707.541432-1-samitolvanen@google.com> With CONFIG_MODVERSIONS, version information is linked into each compilation unit that exports symbols. With LTO, we cannot use this method as all C code is compiled into LLVM bitcode instead. This change collects symbol versions into .symversions files and merges them in link-vmlinux.sh where they are all linked into vmlinux.o at the same time. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> --- .gitignore | 1 + Makefile | 3 ++- arch/Kconfig | 1 - scripts/Makefile.build | 33 +++++++++++++++++++++++++++++++-- scripts/Makefile.modpost | 6 +++++- scripts/link-vmlinux.sh | 23 ++++++++++++++++++++++- 6 files changed, 61 insertions(+), 6 deletions(-) diff --git a/.gitignore b/.gitignore index d01cda8e1177..44e34991875e 100644 --- a/.gitignore +++ b/.gitignore @@ -41,6 +41,7 @@ *.so.dbg *.su *.symtypes +*.symversions *.tab.[ch] *.tar *.xz diff --git a/Makefile b/Makefile index f5cac2428efc..222ae96d179d 100644 --- a/Makefile +++ b/Makefile @@ -1829,7 +1829,8 @@ clean: $(clean-dirs) -o -name '.tmp_*.o.*' \ -o -name '*.c.[012]*.*' \ -o -name '*.ll' \ - -o -name '*.gcno' \) -type f -print | xargs rm -f + -o -name '*.gcno' \ + -o -name '*.*.symversions' \) -type f -print | xargs rm -f # Generate tags for editors # --------------------------------------------------------------------------- diff --git a/arch/Kconfig b/arch/Kconfig index 30907b554451..c3c13ec9a74c 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -633,7 +633,6 @@ config HAS_LTO_CLANG depends on !FTRACE_MCOUNT_USE_RECORDMCOUNT depends on !KASAN depends on !GCOV_KERNEL - depends on !MODVERSIONS help The compiler and Kconfig options support building with Clang's LTO. diff --git a/scripts/Makefile.build b/scripts/Makefile.build index ed74b2f986f7..eae2f5386a03 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -166,6 +166,15 @@ ifdef CONFIG_MODVERSIONS # the actual value of the checksum generated by genksyms # o remove .tmp_<file>.o to <file>.o +ifdef CONFIG_LTO_CLANG +# Generate .o.symversions files for each .o with exported symbols, and link these +# to the kernel and/or modules at the end. +cmd_modversions_c = \ + if $(NM) $@ 2>/dev/null | grep -q __ksymtab; then \ + $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \ + > $@.symversions; \ + fi; +else cmd_modversions_c = \ if $(OBJDUMP) -h $@ | grep -q __ksymtab; then \ $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \ @@ -177,6 +186,7 @@ cmd_modversions_c = \ rm -f $(@D)/.tmp_$(@F:.o=.ver); \ fi endif +endif ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT # compiler will not generate __mcount_loc use recordmcount or recordmcount.pl @@ -390,6 +400,18 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler $(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ; $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ; +# combine symversions for later processing +quiet_cmd_update_lto_symversions = SYMVER $@ +ifeq ($(CONFIG_LTO_CLANG) $(CONFIG_MODVERSIONS),y y) + cmd_update_lto_symversions = \ + rm -f $@.symversions \ + $(foreach n, $(filter-out FORCE,$^), \ + $(if $(wildcard $(n).symversions), \ + ; cat $(n).symversions >> $@.symversions)) +else + cmd_update_lto_symversions = echo >/dev/null +endif + # # Rule to compile a set of .o files into one .a file (without symbol table) # @@ -397,8 +419,11 @@ $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ; quiet_cmd_ar_builtin = AR $@ cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs) +quiet_cmd_ar_and_symver = AR $@ + cmd_ar_and_symver = $(cmd_update_lto_symversions); $(cmd_ar_builtin) + $(obj)/built-in.a: $(real-obj-y) FORCE - $(call if_changed,ar_builtin) + $(call if_changed,ar_and_symver) # # Rule to create modules.order file @@ -418,8 +443,11 @@ $(obj)/modules.order: $(obj-m) FORCE # # Rule to compile a set of .o files into one .a file (with symbol table) # +quiet_cmd_ar_lib = AR $@ + cmd_ar_lib = $(cmd_update_lto_symversions); $(cmd_ar) + $(obj)/lib.a: $(lib-y) FORCE - $(call if_changed,ar) + $(call if_changed,ar_lib) # NOTE: # Do not replace $(filter %.o,^) with $(real-prereqs). When a single object @@ -428,6 +456,7 @@ $(obj)/lib.a: $(lib-y) FORCE ifdef CONFIG_LTO_CLANG quiet_cmd_link_multi-m = AR [M] $@ cmd_link_multi-m = \ + $(cmd_update_lto_symversions); \ rm -f $@; \ $(AR) cDPrsT $@ $(filter %.o,$^) else diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 9ff8bfdb574d..066beffca09a 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -111,7 +111,11 @@ ifdef CONFIG_LTO_CLANG prelink-ext := .lto quiet_cmd_cc_lto_link_modules = LTO [M] $@ -cmd_cc_lto_link_modules = $(LD) $(ld_flags) -r -o $@ --whole-archive $^ +cmd_cc_lto_link_modules = \ + $(LD) $(ld_flags) -r -o $@ \ + $(shell [ -s $(@:.lto.o=.o.symversions) ] && \ + echo -T $(@:.lto.o=.o.symversions)) \ + --whole-archive $^ %.lto.o: %.o $(call if_changed,cc_lto_link_modules) diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 596507573a48..78e55fe7210b 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -43,11 +43,26 @@ info() fi } +# If CONFIG_LTO_CLANG is selected, collect generated symbol versions into +# .tmp_symversions.lds +gen_symversions() +{ + info GEN .tmp_symversions.lds + rm -f .tmp_symversions.lds + + for o in ${KBUILD_VMLINUX_OBJS} ${KBUILD_VMLINUX_LIBS}; do + if [ -f ${o}.symversions ]; then + cat ${o}.symversions >> .tmp_symversions.lds + fi + done +} + # Link of vmlinux.o used for section mismatch analysis # ${1} output file modpost_link() { local objects + local lds="" objects="--whole-archive \ ${KBUILD_VMLINUX_OBJS} \ @@ -57,6 +72,11 @@ modpost_link() --end-group" if [ -n "${CONFIG_LTO_CLANG}" ]; then + if [ -n "${CONFIG_MODVERSIONS}" ]; then + gen_symversions + lds="${lds} -T .tmp_symversions.lds" + fi + # This might take a while, so indicate that we're doing # an LTO link info LTO ${1} @@ -64,7 +84,7 @@ modpost_link() info LD ${1} fi - ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${objects} + ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${lds} ${objects} } objtool_link() @@ -242,6 +262,7 @@ cleanup() { rm -f .btf.* rm -f .tmp_System.map + rm -f .tmp_symversions.lds rm -f .tmp_vmlinux* rm -f System.map rm -f vmlinux -- 2.29.2.576.ga3fc446d84-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-12-01 21:39 UTC|newest] Thread overview: 141+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-01 21:36 [PATCH v8 00/16] Add support for Clang LTO Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` [PATCH v8 01/16] tracing: move function tracer options to Kconfig Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:47 ` Steven Rostedt 2020-12-01 21:47 ` Steven Rostedt 2020-12-01 21:36 ` [PATCH v8 02/16] kbuild: add support for Clang LTO Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-02 2:59 ` Masahiro Yamada 2020-12-02 2:59 ` Masahiro Yamada 2020-12-03 0:07 ` Nick Desaulniers 2020-12-03 0:07 ` Nick Desaulniers 2020-12-03 0:07 ` Nick Desaulniers 2020-12-01 21:36 ` Sami Tolvanen [this message] 2020-12-01 21:36 ` [PATCH v8 03/16] kbuild: lto: fix module versioning Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` [PATCH v8 04/16] kbuild: lto: limit inlining Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` [PATCH v8 05/16] kbuild: lto: merge module sections Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` [PATCH v8 06/16] kbuild: lto: remove duplicate dependencies from .mod files Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` [PATCH v8 07/16] init: lto: ensure initcall ordering Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` [PATCH v8 08/16] init: lto: fix PREL32 relocations Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:36 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 09/16] PCI: Fix PREL32 relocations for LTO Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 10/16] modpost: lto: strip .lto from module names Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 11/16] scripts/mod: disable LTO for empty.c Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 12/16] efi/libstub: disable LTO Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 13/16] drivers/misc/lkdtm: disable LTO for rodata.o Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 14/16] arm64: vdso: disable LTO Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 15/16] arm64: disable recordmcount with DYNAMIC_FTRACE_WITH_REGS Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` [PATCH v8 16/16] arm64: allow LTO to be selected Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-01 21:37 ` Sami Tolvanen 2020-12-03 0:01 ` [PATCH v8 00/16] Add support for Clang LTO Nick Desaulniers 2020-12-03 0:01 ` Nick Desaulniers 2020-12-03 0:01 ` Nick Desaulniers 2020-12-03 11:26 ` Will Deacon 2020-12-03 11:26 ` Will Deacon 2020-12-03 17:07 ` Sami Tolvanen 2020-12-03 17:07 ` Sami Tolvanen 2020-12-03 17:07 ` Sami Tolvanen 2020-12-03 18:21 ` Nathan Chancellor 2020-12-03 18:21 ` Nathan Chancellor 2020-12-03 18:22 ` Will Deacon 2020-12-03 18:22 ` Will Deacon 2020-12-03 22:32 ` Nick Desaulniers 2020-12-03 22:32 ` Nick Desaulniers 2020-12-03 22:32 ` Nick Desaulniers 2020-12-04 9:35 ` Will Deacon 2020-12-04 9:35 ` Will Deacon 2020-12-04 22:52 ` Sami Tolvanen 2020-12-04 22:52 ` Sami Tolvanen 2020-12-04 22:52 ` Sami Tolvanen 2020-12-06 6:50 ` Nathan Chancellor 2020-12-06 6:50 ` Nathan Chancellor 2020-12-06 20:09 ` Sami Tolvanen 2020-12-06 20:09 ` Sami Tolvanen 2020-12-06 20:09 ` Sami Tolvanen 2020-12-08 0:46 ` Nathan Chancellor 2020-12-08 0:46 ` Nathan Chancellor 2020-12-08 12:15 ` Arnd Bergmann 2020-12-08 12:15 ` Arnd Bergmann 2020-12-08 12:15 ` Arnd Bergmann 2020-12-08 13:54 ` Arnd Bergmann 2020-12-08 13:54 ` Arnd Bergmann 2020-12-08 13:54 ` Arnd Bergmann 2020-12-08 16:53 ` Sami Tolvanen 2020-12-08 16:53 ` Sami Tolvanen 2020-12-08 16:53 ` Sami Tolvanen 2020-12-08 16:56 ` Arnd Bergmann 2020-12-08 16:56 ` Arnd Bergmann 2020-12-08 16:56 ` Arnd Bergmann 2020-12-08 16:43 ` Sami Tolvanen 2020-12-08 16:43 ` Sami Tolvanen 2020-12-08 16:43 ` Sami Tolvanen 2020-12-08 20:59 ` Arnd Bergmann 2020-12-08 20:59 ` Arnd Bergmann 2020-12-08 21:02 ` Arnd Bergmann 2020-12-08 21:02 ` Arnd Bergmann 2020-12-09 5:23 ` Fāng-ruì Sòng 2020-12-09 5:23 ` Fāng-ruì Sòng 2020-12-09 5:23 ` Fāng-ruì Sòng 2020-12-09 9:07 ` Arnd Bergmann 2020-12-09 9:07 ` Arnd Bergmann 2020-12-09 9:07 ` Arnd Bergmann 2020-12-09 9:59 ` Arnd Bergmann 2020-12-09 9:59 ` Arnd Bergmann 2020-12-09 16:09 ` Sami Tolvanen 2020-12-09 16:09 ` Sami Tolvanen 2020-12-09 16:09 ` Sami Tolvanen 2020-12-09 19:24 ` Arnd Bergmann 2020-12-09 19:24 ` Arnd Bergmann 2020-12-09 19:24 ` Arnd Bergmann 2020-12-08 21:09 ` Nick Desaulniers 2020-12-08 21:09 ` Nick Desaulniers 2020-12-08 21:09 ` Nick Desaulniers 2020-12-08 22:20 ` Arnd Bergmann 2020-12-08 22:20 ` Arnd Bergmann 2020-12-08 22:20 ` Arnd Bergmann 2020-12-09 16:11 ` Sami Tolvanen 2020-12-09 16:11 ` Sami Tolvanen 2020-12-09 16:11 ` Sami Tolvanen 2020-12-09 4:55 ` Fangrui Song 2020-12-09 4:55 ` Fangrui Song 2020-12-09 9:19 ` Arnd Bergmann 2020-12-09 9:19 ` Arnd Bergmann 2020-12-09 9:19 ` Arnd Bergmann 2020-12-09 12:35 ` Arnd Bergmann 2020-12-09 12:35 ` Arnd Bergmann 2020-12-09 12:35 ` Arnd Bergmann 2020-12-09 16:25 ` Sami Tolvanen 2020-12-09 16:25 ` Sami Tolvanen 2020-12-09 16:25 ` Sami Tolvanen 2020-12-09 17:51 ` Arnd Bergmann 2020-12-09 17:51 ` Arnd Bergmann 2020-12-09 17:51 ` Arnd Bergmann
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