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-rw-r--r--target/linux/ppc44x/patches-3.18/900-bootwrapper-parallel-make-fix.patch45
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/ppc44x/patches-3.18/900-bootwrapper-parallel-make-fix.patch b/target/linux/ppc44x/patches-3.18/900-bootwrapper-parallel-make-fix.patch
new file mode 100644
index 0000000000..313347ceaf
--- /dev/null
+++ b/target/linux/ppc44x/patches-3.18/900-bootwrapper-parallel-make-fix.patch
@@ -0,0 +1,45 @@
+From: Jo-Philipp Wich <jo@mein.io>
+Date: Wed, 4 Jan 2017 10:35:00 +0100
+Subject: [PATCH] powerpc: boot: fix build with parallel make
+
+The powerpc boot wrapper Makefile is not parallel build safe, causing fixdep
+to fail reading dependency files of the addnote, hack-coff and mktree
+utilities when concurrently building different image targets.
+
+A typical failure looks like:
+
+ Building modules, stage 2.
+ HOSTCC arch/powerpc/boot/addnote
+ HOSTCC arch/powerpc/boot/hack-coff
+ DTC arch/powerpc/boot/taishan.dtb
+ HOSTCC arch/powerpc/boot/addnote
+ HOSTCC arch/powerpc/boot/hack-coff
+ MODPOST 800 modules
+ fixdep: error opening depfile: arch/powerpc/boot/.hack-coff.d: No such file or directory
+ scripts/Makefile.host:91: recipe for target 'arch/powerpc/boot/hack-coff' failed
+ make[5]: *** [arch/powerpc/boot/hack-coff] Error 2
+ make[5]: *** Waiting for unfinished jobs....
+ fixdep: error opening depfile: arch/powerpc/boot/.addnote.d: No such file or directory
+ scripts/Makefile.host:91: recipe for target 'arch/powerpc/boot/addnote' failed
+ make[5]: *** [arch/powerpc/boot/addnote] Error 2
+ rm arch/powerpc/boot/taishan.dtb
+ arch/powerpc/Makefile:263: recipe for target 'cuImage.taishan' failed
+ make[4]: *** [cuImage.taishan] Error 2
+ make[4]: *** Waiting for unfinished jobs....
+
+Add a GNU make specific .NOTPARALLEL pseudo rule to enforce sequential building
+of the addnote, hack-coff and mktree executables.
+
+Signed-off-by: Jo-Philipp Wich <jo@mein.io>
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -194,6 +194,8 @@ wrapper :=$(srctree)/$(src)/wrapper
+ wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) \
+ $(wrapper) FORCE
+
++.NOTPARALLEL: $(addprefix $(obj)/,addnote hack-coff mktree) $(wrapper)
++
+ #############
+ # Bits for building various flavours of zImage
+