Merge pull request #2571 from martin-frbg/issue2299

Work around IDAMAX/IZAMAX bugs on POWER8BE with ELFv2 FreeBSD

Makefile.system

@@ -1349,6 +1349,7 @@ export ARCH
 export CORE
 export LIBCORE
 export __BYTE_ORDER__
+export ELF_VERSION
 export PGCPATH
 export CONFIG
 export CC

getarch.c

@@ -1362,10 +1362,12 @@ int main(int argc, char *argv[]){
 
 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 printf("__BYTE_ORDER__=__ORDER_BIG_ENDIAN__\n");
-#endif
-#if defined(__BIG_ENDIAN__) && __BIG_ENDIAN__ > 0
+#elif defined(__BIG_ENDIAN__) && __BIG_ENDIAN__ > 0
 printf("__BYTE_ORDER__=__ORDER_BIG_ENDIAN__\n");
 #endif
+#if defined(_CALL_ELF) && (_CALL_ELF == 2)
+printf("ELF_VERSION=2\n");
+#endif
 
 #ifdef MAKE_NB_JOBS
   #if MAKE_NB_JOBS > 0

kernel/power/KERNEL.POWER8

@@ -232,3 +232,11 @@ QCABS_KERNEL	= ../generic/cabs.c
 #Dump kernel
 CGEMM3MKERNEL    = ../generic/zgemm3mkernel_dump.c
 ZGEMM3MKERNEL    = ../generic/zgemm3mkernel_dump.c
+
+ifeq ($(__BYTE_ORDER__)$(ELF_VERSION),__ORDER_BIG_ENDIAN__2)
+IDAMAXKERNEL  = ../arm/iamax.c
+IDAMINKERNEL  = ../arm/iamin.c
+IZAMAXKERNEL  = ../arm/izamax.c
+IZAMINKERNEL  = ../arm/izamin.c
+endif
+