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* [dpdk-dev] [PATCH] test: Disable strict-aliasing warnings
@ 2015-03-26 19:17 Pablo de Lara
  2015-03-27  8:41 ` Qiu, Michael
                   ` (4 more replies)
  0 siblings, 5 replies; 17+ messages in thread
From: Pablo de Lara @ 2015-03-26 19:17 UTC (permalink / raw)
  To: dev

DPDK does not build on gcc 4.4, as it complains due to
strict-aliasing rules in virtual_pmd and link_bonding_mode4 tests,
with no errors in next gcc versions:

CC virtual_pmd.o
CC test_link_bonding_mode4.o
cc1: warnings being treated as errors
/root/dpdk/app/test/test_link_bonding_mode4.c: In function ‘test_mode4_expired’:
/root/dpdk/x86_64-native-linuxapp-gcc/include/rte_ring.h:645: error: dereferencing pointer ‘pkt.409’ does break strict-aliasing rules
/root/dpdk/x86_64-native-linuxapp-gcc/include/rte_ring.h:729: error: dereferencing pointer ‘pkt.409’ does break strict-aliasing rules
...
cc1: warnings being treated as errors
/root/dpdk/app/test/virtual_pmd.c: In function ‘virtual_ethdev_stats_reset’:
/root/dpdk/x86_64-native-linuxapp-gcc/include/rte_ring.h:645: error: dereferencing pointer ‘pkt.338’ does break strict-aliasing rules
/root/dpdk/x86_64-native-linuxapp-gcc/include/rte_ring.h:729: error: dereferencing pointer ‘pkt.338’ does break strict-aliasing rules

This patch fixes the compilation by disabling
these warnings.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
 app/test/Makefile |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/app/test/Makefile b/app/test/Makefile
index 4aca77c..0d62d07 100644
--- a/app/test/Makefile
+++ b/app/test/Makefile
@@ -158,6 +158,11 @@ CFLAGS_test_memcpy_perf.o += -fno-var-tracking-assignments
 endif
 endif
 
+# Disable warnings of no-strict-aliasing in virtual_pmd
+# and test_link_bonding_mode4 tests
+CFLAGS_virtual_pmd.o += -Wno-strict-aliasing
+CFLAGS_test_link_bonding_mode4.o += -Wno-strict-aliasing
+
 # this application needs libraries first
 DEPDIRS-y += lib
 
-- 
1.7.4.1

^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2015-03-30 20:49 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-03-26 19:17 [dpdk-dev] [PATCH] test: Disable strict-aliasing warnings Pablo de Lara
2015-03-27  8:41 ` Qiu, Michael
2015-03-27  8:57   ` De Lara Guarch, Pablo
2015-03-27  9:20 ` Thomas Monjalon
2015-03-27  9:29   ` De Lara Guarch, Pablo
2015-03-27 10:00     ` Thomas Monjalon
2015-03-27 10:11       ` De Lara Guarch, Pablo
2015-03-30 11:11         ` De Lara Guarch, Pablo
2015-03-27 10:55 ` [dpdk-dev] [PATCH v2 0/2] test: fix strict aliasing rule errors in gcc 4.4 Pawel Wodkowski
2015-03-27 10:56   ` [dpdk-dev] [PATCH v2 1/2] test: fix strict aliasing rule error in virtual pmd Pawel Wodkowski
2015-03-27 15:47     ` Stephen Hemminger
2015-03-27 10:56   ` [dpdk-dev] [PATCH v2 2/2] test: fix strict aliasing rule error in link bonding mode 4 test Pawel Wodkowski
2015-03-30 20:48   ` [dpdk-dev] [PATCH v2 0/2] test: fix strict aliasing rule errors in gcc 4.4 Thomas Monjalon
2015-03-27 15:46 ` [dpdk-dev] [PATCH] test: Disable strict-aliasing warnings Stephen Hemminger
2015-03-27 15:48   ` De Lara Guarch, Pablo
2015-03-30 11:06 ` [dpdk-dev] [PATCH v2] DPDK does not build on gcc 4.4, as it complains due to strict-aliasing rules in virtual_pmd and link_bonding_mode4 tests, with no errors in next gcc versions: Pablo de Lara
2015-03-30 20:47   ` Thomas Monjalon

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