package/libs/uclibc++/patches/006-buildsys-shorten-abi-deb-file-names.patch

   1 From 6687fc9276fa52defaf8592f2001c19b826aec93 Mon Sep 17 00:00:00 2001
   2 From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
   3 Date: Thu, 4 Jun 2020 10:21:43 +0200
   4 Subject: buildsys: shorten abi dep-file names
   5
   6 certain crypto-layers encode required information in the
   7 filename hence crippling NAME_MAX from 255 down to about 143
   8 ascii chars.
   9
  10 Since the dependency files of libgcc_eh and libsupc encode the full
  11 path to the corresponding libraries, the names of the dep files can
  12 get quite large. Shorten them by some (arbitrary, short) hash.
  13
  14 Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
  15 ---
  16  Rules.mak                     | 2 ++
  17  src/abi/libgcc_eh/Makefile.in | 4 ++--
  18  src/abi/libsupc/Makefile.in   | 4 ++--
  19  3 files changed, 6 insertions(+), 4 deletions(-)
  20
  21 diff --git a/Rules.mak b/Rules.mak
  22 index 1b5ed30..9162c64 100644
  23 --- a/Rules.mak
  24 +++ b/Rules.mak
  25 @@ -50,6 +50,7 @@ RM      = rm -f
  26  TAR     = tar
  27  SED     = sed
  28  AWK     = awk
  29 +MD5SUM  = md5sum
  30
  31  ARFLAGS:= cr
  32
  33 @@ -249,6 +250,7 @@ endif
  34
  35  list-archive-members = $(if $(1),$(shell $(AR) t $(1)))
  36  variablify = $(strip $(subst /,_,$(subst :,_,$(subst ;,_,$(subst |,_,$(subst >,_,$(subst <,_,$(1))))))))
  37 +print-hash = $(strip $(if $(1),$(shell printf "%s" "$(1)" | $(MD5SUM) | $(SED) 's/[^0-9a-zA-Z]//g')))
  38
  39  GEN_LIBS:= -lc
  40  ifneq ($(LIBGCC_DIR),$(UCLIBCXX_RUNTIME_LIBDIR))
  41 diff --git a/src/abi/libgcc_eh/Makefile.in b/src/abi/libgcc_eh/Makefile.in
  42 index 46b0017..1553b34 100644
  43 --- a/src/abi/libgcc_eh/Makefile.in
  44 +++ b/src/abi/libgcc_eh/Makefile.in
  45 @@ -4,7 +4,7 @@ OBJS = $(call list-archive-members,$(LIBGCC_EH))
  46  libgcc_eh-$(IMPORT_LIBGCC_EH) := $(OBJS)
  47
  48  LIBGCC_EH_VAR := $(call variablify,$(LIBGCC_EH))
  49 -LIBGCC_EH_DEP := $(LIBGCC_EH_OUT).$(LIBGCC_EH_VAR).dep
  50 +LIBGCC_EH_DEP := $(LIBGCC_EH_OUT).$(call print-hash,$(LIBGCC_EH_VAR)).dep
  51
  52  ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  53  -include $(LIBGCC_EH_DEP)
  54 @@ -17,7 +17,7 @@ endif
  55  $(LIBGCC_EH_DEP): $(LIBGCC_EH)
  56         $(Q)$(RM) $(LIBGCC_EH_OUT).*dep $(LIBGCC_EH_OUT)*.o
  57         $(Q)$(if $(LIBGCC_EH),(cd $(LIBGCC_EH_OUT) && $(AR) x $(LIBGCC_EH)))
  58 -       $(Q)echo "libgcc_eh-y := \$$(addprefix \$$(LIBGCC_EH_OUT),$(libgcc_eh-y))" > $@
  59 +       $(Q)printf "# %s\n\n%s\n" "$(LIBGCC_EH)" "libgcc_eh-y := \$$(addprefix \$$(LIBGCC_EH_OUT),$(libgcc_eh-y))" > $@
  60
  61  CLEAN_src/abi/libgcc_eh: ;
  62  DISTCLEAN_src/abi/libgcc_eh:
  63 diff --git a/src/abi/libsupc/Makefile.in b/src/abi/libsupc/Makefile.in
  64 index 89e0e8a..9c00df0 100644
  65 --- a/src/abi/libsupc/Makefile.in
  66 +++ b/src/abi/libsupc/Makefile.in
  67 @@ -5,7 +5,7 @@ OBJS-OMIT = $(filter new_op%.o del_op%.o pure.o new_handler.o eh_alloc.o eh_glob
  68  libsupc-$(IMPORT_LIBSUP) := $(filter-out $(OBJS-OMIT),$(OBJS))
  69
  70  LIBSUP_VAR := $(call variablify,$(LIBSUP))
  71 -LIBSUP_DEP :=$(LIBSUPC_OUT).$(LIBSUP_VAR).dep
  72 +LIBSUP_DEP := $(LIBSUPC_OUT).$(call print-hash,$(LIBSUP_VAR)).dep
  73
  74  ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  75  -include $(LIBSUP_DEP)
  76 @@ -17,7 +17,7 @@ endif
  77  $(LIBSUP_DEP): $(LIBSUP) $(LIBSUPC_OUT)Makefile.in
  78         $(Q)$(RM) $(LIBSUPC_OUT).*dep $(LIBSUPC_OUT)*.o
  79         $(Q)$(if $(LIBSUP),(cd $(LIBSUPC_OUT) && $(AR) x $(LIBSUP) && $(RM) $(OBJS-OMIT)))
  80 -       $(Q)echo "libsupc-y := \$$(addprefix \$$(LIBSUPC_OUT),$(libsupc-y))" > $@
  81 +       $(Q)printf "# %s\n\n%s\n" "$(LIBSUP)" "libsupc-y := \$$(addprefix \$$(LIBSUPC_OUT),$(libsupc-y))" > $@
  82
  83  CLEAN_src/abi/libsupc: ;
  84  DISTCLEAN_src/abi/libsupc:
  85 --
  86 cgit v1.2.3