[Buildroot] [git commit] package/assimp: workaround m68k build issues

Yann E. MORIN yann.morin.1998 at free.fr
Tue Aug 25 21:23:37 UTC 2020

commit: https://git.buildroot.net/buildroot/commit/?id=e235d8fc8b8becabacf9254c1e3dfdb7a95ad9f1
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

On m68k coldfire, we already pass -mxgot, but since the bump to assimp
5.0.1, this is no longer sufficient, and we have failures such as:

/tmp/ccqmJLil.s: Assembler messages:
/tmp/ccqmJLil.s:307948: Error: value -43420 out of range
/tmp/ccqmJLil.s:307985: Error: value -38606 out of range
/tmp/ccqmJLil.s:308010: Error: value -38626 out of range
/tmp/ccqmJLil.s:308056: Error: value -33280 out of range

Since these issues only arise when building with -O2, let's disable
the optimization for this package on m68k. The very relative relevance
of assimp on m68k coldfire makes the research of a better solution not
really useful (for the record, assimp is a "library to import various
well-known 3D model formats in a uniform manner").



Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998 at free.fr>
 package/assimp/assimp.mk | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/package/assimp/assimp.mk b/package/assimp/assimp.mk
index 4aeb2963a9..e8620c859a 100644
--- a/package/assimp/assimp.mk
+++ b/package/assimp/assimp.mk
@@ -10,9 +10,11 @@ ASSIMP_LICENSE = BSD-3-Clause
-# relocation truncated to fit: R_68K_GOT16O
+# relocation truncated to fit: R_68K_GOT16O. We also need to disable
+# optimizations to not run into "Error: value -43420 out of range"
+# assembler issues.
 ifeq ($(BR2_m68k),y)
+ASSIMP_CXXFLAGS += -mxgot -O0
 # workaround SuperH compiler failure when static linking (i.e -fPIC is

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