--- /dev/null
+From 71471cb1d05f3877c8fb935fbf70a6bae789ac49 Mon Sep 17 00:00:00 2001
+From: Jens Axboe <axboe@fb.com>
+Date: Thu, 10 Mar 2016 08:09:41 -0700
+Subject: [PATCH] Fix compile of test programs on archs that use arch_flags at
+ runtime
+
+SuperH compile currently fails with:
+
+gettime.o: In function fio_gettime':
+/home/thomas/projets/buildroot/output/build/fio-fio-2.7/gettime.c:163: undefined reference to arch_flags'
+gettime.o: In function utime_since_now':
+/home/thomas/projets/buildroot/output/build/fio-fio-2.7/gettime.c:164: undefined reference to arch_flags'
+gettime.o: In function mtime_since_now':
+/home/thomas/projets/buildroot/output/build/fio-fio-2.7/gettime.c:164: undefined reference to arch_flags'
+gettime.o: In function time_since_now':
+/home/thomas/projets/buildroot/output/build/fio-fio-2.7/gettime.c:164: undefined reference to arch_flags'
+mutex.o: In function fio_mutex_up':
+/home/thomas/projets/buildroot/output/build/fio-fio-2.7/mutex.c:189: undefined reference to arch_flags'
+collect2: error: ld returned 1 exit status
+Makefile:375: recipe for target 't/stest' failed
+make[2]: *** [t/stest] Error 1
+make[2]: *** Waiting for unfinished jobs....
+
+Fix that by ensuring we have a stub arch.o with the necessary arch flags
+for the standalone test programs.
+
+Signed-off-by: Jens Axboe <axboe@fb.com>
+---
+ Makefile | 6 +++---
+ t/arch.c | 5 +++++
+ t/dedupe.c | 1 +
+ t/lfsr-test.c | 2 ++
+ t/stest.c | 2 ++
+ 5 files changed, 13 insertions(+), 3 deletions(-)
+ create mode 100644 t/arch.c
+
+diff --git a/Makefile b/Makefile
+index 6b4c9db..a2502dc 100644
+--- a/Makefile
++++ b/Makefile
+@@ -191,7 +191,7 @@ endif
+ -include $(OBJS:.o=.d)
+
+ T_SMALLOC_OBJS = t/stest.o
+-T_SMALLOC_OBJS += gettime.o mutex.o smalloc.o t/log.o t/debug.o
++T_SMALLOC_OBJS += gettime.o mutex.o smalloc.o t/log.o t/debug.o t/arch.o
+ T_SMALLOC_PROGS = t/stest
+
+ T_IEEE_OBJS = t/ieee754.o
+@@ -208,7 +208,7 @@ T_AXMAP_OBJS += lib/lfsr.o lib/axmap.o
+ T_AXMAP_PROGS = t/axmap
+
+ T_LFSR_TEST_OBJS = t/lfsr-test.o
+-T_LFSR_TEST_OBJS += lib/lfsr.o gettime.o t/log.o t/debug.o
++T_LFSR_TEST_OBJS += lib/lfsr.o gettime.o t/log.o t/debug.o t/arch.o
+ T_LFSR_TEST_PROGS = t/lfsr-test
+
+ T_GEN_RAND_OBJS = t/gen-rand.o
+@@ -223,7 +223,7 @@ endif
+
+ T_DEDUPE_OBJS = t/dedupe.o
+ T_DEDUPE_OBJS += lib/rbtree.o t/log.o mutex.o smalloc.o gettime.o crc/md5.o \
+- lib/memalign.o lib/bloom.o t/debug.o crc/xxhash.o \
++ lib/memalign.o lib/bloom.o t/debug.o crc/xxhash.o t/arch.o \
+ crc/murmur3.o crc/crc32c.o crc/crc32c-intel.o crc/fnv.o
+ T_DEDUPE_PROGS = t/fio-dedupe
+
+diff --git a/t/arch.c b/t/arch.c
+new file mode 100644
+index 0000000..befb7c7
+--- /dev/null
++++ b/t/arch.c
+@@ -0,0 +1,5 @@
++#include "../arch/arch.h"
++
++unsigned long arch_flags = 0;
++int tsc_reliable;
++int arch_random;
+diff --git a/t/dedupe.c b/t/dedupe.c
+index 3a66820..7856da1 100644
+--- a/t/dedupe.c
++++ b/t/dedupe.c
+@@ -537,6 +537,7 @@ int main(int argc, char *argv[])
+ uint64_t nextents = 0, nchunks = 0;
+ int c, ret;
+
++ arch_init(argv);
+ debug_init();
+
+ while ((c = getopt(argc, argv, "b:t:d:o:c:p:B:")) != -1) {
+diff --git a/t/lfsr-test.c b/t/lfsr-test.c
+index 4352b89..bad5097 100644
+--- a/t/lfsr-test.c
++++ b/t/lfsr-test.c
+@@ -38,6 +38,8 @@ int main(int argc, char *argv[])
+ void *v = NULL, *v_start;
+ double total, mean;
+
++ arch_init(argv);
++
+ /* Read arguments */
+ switch (argc) {
+ case 5: if (strncmp(argv[4], "verify", 7) == 0)
+diff --git a/t/stest.c b/t/stest.c
+index fb51989..0e0d8b0 100644
+--- a/t/stest.c
++++ b/t/stest.c
+@@ -4,6 +4,7 @@
+
+ #include "../smalloc.h"
+ #include "../flist.h"
++#include "../arch/arch.h"
+ #include "debug.h"
+
+ #define MAGIC1 0xa9b1c8d2
+@@ -69,6 +70,7 @@ static int do_specific_alloc(unsigned long size)
+
+ int main(int argc, char *argv[])
+ {
++ arch_init(argv);
+ sinit();
+ debug_init();
+
+--
+2.6.4
+
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