From f5db80a3ab387cc840f5602cc81d3c2028cb7401 Mon Sep 17 00:00:00 2001 From: Alois Klink Date: Sat, 9 Jul 2022 20:16:00 +0100 Subject: [PATCH] uclibc++: fix compilation with long file paths Currently, uClic++ 0.2.5 fails to compile when using a long filepath. For example, if the openwrt directory is in the path: /tmp/this_directory_name_is_very_long/more_long_paths/.../openwrt, then uclibc++ will cause a very obtuse error. Although the uclibc++ makefiles do print a "File name too long" error, it's not the final error that's printed, so it's a bit confusing: > /bin/sh: 1: > cannot create src/abi/libsupc/_libsupc++.a.dep: File name too long > > array_type_info.o: No such file or directory Although OpenWRT 22.03 and current master branch have removed uClib++, I thought I'd make a PR for OpenWRT 21.02, since I encountered it and there seems to be quite a few other people experiencing the same issue. It especially happens when using the SDK, (or when using an encrypted fs) since the pre-packaged SDKs have very long filenames. This patch is already in upstream [1], but has not yet been released. [1]: https://git.busybox.net/uClibc++/commit/?id=6687fc9276fa52defaf8592f2001c19b826aec93 Signed-off-by: Alois Klink --- ...-buildsys-shorten-abi-deb-file-names.patch | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 package/libs/uclibc++/patches/006-buildsys-shorten-abi-deb-file-names.patch diff --git a/package/libs/uclibc++/patches/006-buildsys-shorten-abi-deb-file-names.patch b/package/libs/uclibc++/patches/006-buildsys-shorten-abi-deb-file-names.patch new file mode 100644 index 00000000000000..8a4677c7091038 --- /dev/null +++ b/package/libs/uclibc++/patches/006-buildsys-shorten-abi-deb-file-names.patch @@ -0,0 +1,86 @@ +From 6687fc9276fa52defaf8592f2001c19b826aec93 Mon Sep 17 00:00:00 2001 +From: Bernhard Reutner-Fischer +Date: Thu, 4 Jun 2020 10:21:43 +0200 +Subject: buildsys: shorten abi dep-file names + +certain crypto-layers encode required information in the +filename hence crippling NAME_MAX from 255 down to about 143 +ascii chars. + +Since the dependency files of libgcc_eh and libsupc encode the full +path to the corresponding libraries, the names of the dep files can +get quite large. Shorten them by some (arbitrary, short) hash. + +Signed-off-by: Bernhard Reutner-Fischer +--- + Rules.mak | 2 ++ + src/abi/libgcc_eh/Makefile.in | 4 ++-- + src/abi/libsupc/Makefile.in | 4 ++-- + 3 files changed, 6 insertions(+), 4 deletions(-) + +diff --git a/Rules.mak b/Rules.mak +index 1b5ed30..9162c64 100644 +--- a/Rules.mak ++++ b/Rules.mak +@@ -50,6 +50,7 @@ RM = rm -f + TAR = tar + SED = sed + AWK = awk ++MD5SUM = md5sum + + ARFLAGS:= cr + +@@ -249,6 +250,7 @@ endif + + list-archive-members = $(if $(1),$(shell $(AR) t $(1))) + variablify = $(strip $(subst /,_,$(subst :,_,$(subst ;,_,$(subst |,_,$(subst >,_,$(subst <,_,$(1)))))))) ++print-hash = $(strip $(if $(1),$(shell printf "%s" "$(1)" | $(MD5SUM) | $(SED) 's/[^0-9a-zA-Z]//g'))) + + GEN_LIBS:= -lc + ifneq ($(LIBGCC_DIR),$(UCLIBCXX_RUNTIME_LIBDIR)) +diff --git a/src/abi/libgcc_eh/Makefile.in b/src/abi/libgcc_eh/Makefile.in +index 46b0017..1553b34 100644 +--- a/src/abi/libgcc_eh/Makefile.in ++++ b/src/abi/libgcc_eh/Makefile.in +@@ -4,7 +4,7 @@ OBJS = $(call list-archive-members,$(LIBGCC_EH)) + libgcc_eh-$(IMPORT_LIBGCC_EH) := $(OBJS) + + LIBGCC_EH_VAR := $(call variablify,$(LIBGCC_EH)) +-LIBGCC_EH_DEP := $(LIBGCC_EH_OUT).$(LIBGCC_EH_VAR).dep ++LIBGCC_EH_DEP := $(LIBGCC_EH_OUT).$(call print-hash,$(LIBGCC_EH_VAR)).dep + + ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) + -include $(LIBGCC_EH_DEP) +@@ -17,7 +17,7 @@ endif + $(LIBGCC_EH_DEP): $(LIBGCC_EH) + $(Q)$(RM) $(LIBGCC_EH_OUT).*dep $(LIBGCC_EH_OUT)*.o + $(Q)$(if $(LIBGCC_EH),(cd $(LIBGCC_EH_OUT) && $(AR) x $(LIBGCC_EH))) +- $(Q)echo "libgcc_eh-y := \$$(addprefix \$$(LIBGCC_EH_OUT),$(libgcc_eh-y))" > $@ ++ $(Q)printf "# %s\n\n%s\n" "$(LIBGCC_EH)" "libgcc_eh-y := \$$(addprefix \$$(LIBGCC_EH_OUT),$(libgcc_eh-y))" > $@ + + CLEAN_src/abi/libgcc_eh: ; + DISTCLEAN_src/abi/libgcc_eh: +diff --git a/src/abi/libsupc/Makefile.in b/src/abi/libsupc/Makefile.in +index 89e0e8a..9c00df0 100644 +--- a/src/abi/libsupc/Makefile.in ++++ b/src/abi/libsupc/Makefile.in +@@ -5,7 +5,7 @@ OBJS-OMIT = $(filter new_op%.o del_op%.o pure.o new_handler.o eh_alloc.o eh_glob + libsupc-$(IMPORT_LIBSUP) := $(filter-out $(OBJS-OMIT),$(OBJS)) + + LIBSUP_VAR := $(call variablify,$(LIBSUP)) +-LIBSUP_DEP :=$(LIBSUPC_OUT).$(LIBSUP_VAR).dep ++LIBSUP_DEP := $(LIBSUPC_OUT).$(call print-hash,$(LIBSUP_VAR)).dep + + ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) + -include $(LIBSUP_DEP) +@@ -17,7 +17,7 @@ endif + $(LIBSUP_DEP): $(LIBSUP) $(LIBSUPC_OUT)Makefile.in + $(Q)$(RM) $(LIBSUPC_OUT).*dep $(LIBSUPC_OUT)*.o + $(Q)$(if $(LIBSUP),(cd $(LIBSUPC_OUT) && $(AR) x $(LIBSUP) && $(RM) $(OBJS-OMIT))) +- $(Q)echo "libsupc-y := \$$(addprefix \$$(LIBSUPC_OUT),$(libsupc-y))" > $@ ++ $(Q)printf "# %s\n\n%s\n" "$(LIBSUP)" "libsupc-y := \$$(addprefix \$$(LIBSUPC_OUT),$(libsupc-y))" > $@ + + CLEAN_src/abi/libsupc: ; + DISTCLEAN_src/abi/libsupc: +-- +cgit v1.2.3