[dpdk-dev] [PATCH] mk: fix static link with glibc < 2.17

[Gu, YongjieX]

Tested-by: Yongjie Gu <yongjiex.gu at intel.com>



- Check patch: success

- Apply patch: success

- compilation: success

     OS: fedora20

     GCC: gcc_x86-64, 4.8.3

     ICC: 16.0.2

Commit: 608487f3fc96704271c624d0f3fe9d7fb2187aea<http://dpdk.org/browse/dpdk/commit/?id=608487f3fc96704271c624d0f3fe9d7fb2187aea>

     i686-native-linuxapp-icc: compile pass

     x86_64-native-linuxapp-gcc-combined: compile pass

     i686-native-linuxapp-gcc: compile pass

     x86_64-native-linuxapp-gcc: compile pass

     x86_64-native-linuxapp-icc: compile pass

     x86_64-native-linuxapp-gcc-debug: compile pass

     x86_64-native-linuxapp-gcc-shared: compile pass

     x86_64-native-linuxapp-clang: compile pass



     OS: UB1204

     GCC: 4.6.3

     Kernel: 3.8.0-29

Commit: 608487f3fc96704271c624d0f3fe9d7fb2187aea<http://dpdk.org/browse/dpdk/commit/?id=608487f3fc96704271c624d0f3fe9d7fb2187aea>

X86_64-ivshmem-linuxapp-gcc: compile pass







Thanks

Yongjie



-----Original Message-----
From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
Sent: Monday, July 18, 2016 5:44 PM
To: dev at dpdk.org
Subject: [dpdk-dev] [PATCH] mk: fix static link with glibc < 2.17



There is an error when linking static EAL library with an application:



eal_alarm.c:(.text+0xd7): undefined reference to `clock_gettime'

eal_alarm.c:(.text+0x20f): undefined reference to `clock_gettime'

eal_timer.c:(.text+0x108): undefined reference to `clock_gettime'

eal_timer.c:(.text+0x146): undefined reference to `clock_gettime'



The function clock_gettime() is in librt for old glibc.



Fixes: 281948b4753e ("mk: fix missing librt dependencies")



Signed-off-by: Thomas Monjalon <thomas.monjalon at 6wind.com<mailto:thomas.monjalon at 6wind.com>>

---

mk/rte.app.mk | 1 +

1 file changed, 1 insertion(+)



diff --git a/mk/rte.app.mk b/mk/rte.app.mk index 886dbdd..eb28e11 100644

--- a/mk/rte.app.mk

+++ b/mk/rte.app.mk

@@ -151,6 +151,7 @@ _LDLIBS-y += --no-whole-archive  ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n)

# The static libraries do not know their dependencies.

# So linking with static library requires explicit dependencies.

+_LDLIBS-$(CONFIG_RTE_LIBRTE_EAL)            += -lrt

_LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED)          += -lm

_LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED)          += -lrt

_LDLIBS-$(CONFIG_RTE_LIBRTE_METER)          += -lm

--

2.7.0