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-rw-r--r--meta/recipes-devtools/gcc/gcc-6.2/0013-64-bit-multilib-hack.patch85
1 files changed, 85 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-6.2/0013-64-bit-multilib-hack.patch b/meta/recipes-devtools/gcc/gcc-6.2/0013-64-bit-multilib-hack.patch
new file mode 100644
index 0000000000..e31cde4317
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.2/0013-64-bit-multilib-hack.patch
@@ -0,0 +1,85 @@
+From 7fc7a070ac53a55950a1eac76f02877d4106b4b3 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 09:10:06 +0400
+Subject: [PATCH 13/46] 64-bit multilib hack.
+
+GCC has internal multilib handling code but it assumes a very specific rigid directory
+layout. The build system implementation of multilib layout is very generic and allows
+complete customisation of the library directories.
+
+This patch is a partial solution to allow any custom directories to be passed into gcc
+and handled correctly. It forces gcc to use the base_libdir (which is the current
+directory, "."). We need to do this for each multilib that is configured as we don't
+know which compiler options may be being passed into the compiler. Since we have a compiler
+per mulitlib at this point that isn't an issue.
+
+The one problem is the target compiler is only going to work for the default multlilib at
+this point. Ideally we'd figure out which multilibs were being enabled with which paths
+and be able to patch these entries with a complete set of correct paths but this we
+don't have such code at this point. This is something the target gcc recipe should do
+and override these platform defaults in its build config.
+
+RP 15/8/11
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Elvis Dowson <elvis.dowson@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/config/i386/t-linux64 | 6 ++----
+ gcc/config/mips/t-linux64 | 10 +++-------
+ gcc/config/rs6000/t-linux64 | 5 ++---
+ 3 files changed, 7 insertions(+), 14 deletions(-)
+
+diff --git a/gcc/config/i386/t-linux64 b/gcc/config/i386/t-linux64
+index c0cc8a3..365a5d6 100644
+--- a/gcc/config/i386/t-linux64
++++ b/gcc/config/i386/t-linux64
+@@ -32,7 +32,5 @@
+ #
+ comma=,
+ MULTILIB_OPTIONS = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+-MULTILIB_DIRNAMES = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
+-MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
++MULTILIB_DIRNAMES = . .
++MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
+diff --git a/gcc/config/mips/t-linux64 b/gcc/config/mips/t-linux64
+index 16c8adf..b932ace 100644
+--- a/gcc/config/mips/t-linux64
++++ b/gcc/config/mips/t-linux64
+@@ -17,10 +17,6 @@
+ # <http://www.gnu.org/licenses/>.
+
+ MULTILIB_OPTIONS = mabi=n32/mabi=32/mabi=64
+-MULTILIB_DIRNAMES = n32 32 64
+-MIPS_EL = $(if $(filter %el, $(firstword $(subst -, ,$(target)))),el)
+-MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, $(target_cpu_default)) $(filter soft, $(with_float))),soft)
+-MULTILIB_OSDIRNAMES = \
+- ../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+- ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+- ../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
++MULTILIB_DIRNAMES = . . .
++MULTILIB_OSDIRNAMES = ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
++
+diff --git a/gcc/config/rs6000/t-linux64 b/gcc/config/rs6000/t-linux64
+index fa7550b..9b5d9ef 100644
+--- a/gcc/config/rs6000/t-linux64
++++ b/gcc/config/rs6000/t-linux64
+@@ -26,10 +26,9 @@
+ # MULTILIB_OSDIRNAMES according to what is found on the target.
+
+ MULTILIB_OPTIONS := m64/m32
+-MULTILIB_DIRNAMES := 64 32
++MULTILIB_DIRNAMES := . .
+ MULTILIB_EXTRA_OPTS :=
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
++MULTILIB_OSDIRNAMES := ../$(shell basename $(base_libdir)) ../$(shell basename $(base_libdir))
+
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.c
+ $(COMPILE) $<
+--
+2.8.2
+