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From: gavin hu <gavin.hu@arm.com>
To: dev@dpdk.org
Cc: nd@arm.com, thomas@monjalon.net, jerinj@marvell.com,
	hemant.agrawal@nxp.com, Honnappa.Nagarahalli@arm.com,
	gavin.hu@arm.com, olivier.matz@6wind.com,
	bruce.richardson@intel.com, stable@dpdk.org
Subject: [dpdk-dev] [PATCH v5 1/4] eal: fix clang compilation error on x86
Date: Tue, 15 Jan 2019 18:32:31 +0800	[thread overview]
Message-ID: <1547548354-44671-2-git-send-email-gavin.hu@arm.com> (raw)
In-Reply-To: <1547548354-44671-1-git-send-email-gavin.hu@arm.com>
In-Reply-To: <20181220104246.5590-1-gavin.hu@arm.com>

From: Gavin Hu <gavin.hu@arm.com>

When CONFIG_RTE_FORCE_INTRINSICS is enabled for x86, the clang
compilation error was:
	include/generic/rte_atomic.h:215:9: error:
		implicit declaration of function '__atomic_exchange_2'
		is invalid in C99
	include/generic/rte_atomic.h:494:9: error:
		implicit declaration of function '__atomic_exchange_4'
		is invalid in C99
	include/generic/rte_atomic.h:772:9: error:
		implicit declaration of function '__atomic_exchange_8'
		is invalid in C99

Use __atomic_exchange_n instead of __atomic_exchange_(2/4/8).
For more information, please refer to:
http://mails.dpdk.org/archives/dev/2018-April/096776.html

Fixes: 7bdccb93078e ("eal: fix ARM build with clang")
Cc: stable@dpdk.org

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
---
 lib/librte_eal/common/include/generic/rte_atomic.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/common/include/generic/rte_atomic.h b/lib/librte_eal/common/include/generic/rte_atomic.h
index b99ba46..ed5b125 100644
--- a/lib/librte_eal/common/include/generic/rte_atomic.h
+++ b/lib/librte_eal/common/include/generic/rte_atomic.h
@@ -212,7 +212,7 @@ rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val);
 static inline uint16_t
 rte_atomic16_exchange(volatile uint16_t *dst, uint16_t val)
 {
-#if defined(RTE_ARCH_ARM64) && defined(RTE_TOOLCHAIN_CLANG)
+#if defined(RTE_TOOLCHAIN_CLANG)
 	return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
 #else
 	return __atomic_exchange_2(dst, val, __ATOMIC_SEQ_CST);
@@ -495,7 +495,7 @@ rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val);
 static inline uint32_t
 rte_atomic32_exchange(volatile uint32_t *dst, uint32_t val)
 {
-#if defined(RTE_ARCH_ARM64) && defined(RTE_TOOLCHAIN_CLANG)
+#if defined(RTE_TOOLCHAIN_CLANG)
 	return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
 #else
 	return __atomic_exchange_4(dst, val, __ATOMIC_SEQ_CST);
@@ -777,7 +777,7 @@ rte_atomic64_exchange(volatile uint64_t *dst, uint64_t val);
 static inline uint64_t
 rte_atomic64_exchange(volatile uint64_t *dst, uint64_t val)
 {
-#if defined(RTE_ARCH_ARM64) && defined(RTE_TOOLCHAIN_CLANG)
+#if defined(RTE_TOOLCHAIN_CLANG)
 	return __atomic_exchange_n(dst, val, __ATOMIC_SEQ_CST);
 #else
 	return __atomic_exchange_8(dst, val, __ATOMIC_SEQ_CST);
-- 
2.7.4

  parent reply	other threads:[~2019-01-15 10:32 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-20 10:42 [dpdk-dev] [PATCH v1 0/5] spinlock optimization and test case enhancements Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 1/5] test/spinlock: remove 1us delay for correct spinlock benchmarking Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 2/5] test/spinlock: get timestamp more precisely Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 3/5] test/spinlock: amortize the cost of getting time Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 4/5] spinlock: move the implementation to arm specific file Gavin Hu
2018-12-20 12:47   ` David Marchand
2018-12-20 12:55     ` David Marchand
2018-12-20 14:40       ` Gavin Hu (Arm Technology China)
2018-12-20 14:36     ` Gavin Hu (Arm Technology China)
2018-12-20 15:09       ` David Marchand
2018-12-20 15:58         ` Gavin Hu (Arm Technology China)
2018-12-20 15:59           ` David Marchand
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 5/5] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2018-12-20 17:42 ` [dpdk-dev] [PATCH v2 0/5] spinlock optimization and test case enhancements Gavin Hu
2018-12-20 17:42   ` [dpdk-dev] [PATCH v2 1/5] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2018-12-20 17:42   ` [dpdk-dev] [PATCH v2 2/5] test/spinlock: get timestamp more precisely Gavin Hu
2018-12-20 17:42   ` [dpdk-dev] [PATCH v2 3/5] test/spinlock: amortize the cost of getting time Gavin Hu
2018-12-20 17:42   ` [dpdk-dev] [PATCH v2 4/5] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2018-12-20 17:42   ` [dpdk-dev] [PATCH v2 5/5] eal: fix clang compilation error on x86 Gavin Hu
2019-01-15  7:54 ` [dpdk-dev] [PATCH v4 0/4] spinlock optimization and test case enhancements gavin hu
2019-01-15  7:54 ` [dpdk-dev] [PATCH v4 1/4] eal: fix clang compilation error on x86 gavin hu
2019-01-15  7:54 ` [dpdk-dev] [PATCH v4 2/4] test/spinlock: remove 1us delay for correct benchmarking gavin hu
2019-01-15  7:54 ` [dpdk-dev] [PATCH v4 3/4] test/spinlock: amortize the cost of getting time gavin hu
2019-01-15  7:54 ` [dpdk-dev] [PATCH v4 4/4] spinlock: reimplement with atomic one-way barrier builtins gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 0/4] spinlock optimization and test case enhancements gavin hu
2019-01-15 10:32 ` gavin hu [this message]
2019-01-15 17:42   ` [dpdk-dev] [PATCH v5 1/4] eal: fix clang compilation error on x86 Honnappa Nagarahalli
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 2/4] test/spinlock: remove 1us delay for correct benchmarking gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 3/4] test/spinlock: amortize the cost of getting time gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 4/4] spinlock: reimplement with atomic one-way barrier builtins gavin hu
2019-03-08  7:16 ` [dpdk-dev] [PATCH v6 0/3] generic spinlock optimization and test case enhancements Gavin Hu
2019-03-08  7:16 ` [dpdk-dev] [PATCH v6 1/3] test/spinlock: dealy 1 us to create contention Gavin Hu
2019-03-08  7:16 ` [dpdk-dev] [PATCH v6 2/3] test/spinlock: amortize the cost of getting time Gavin Hu
2019-03-08  7:16 ` [dpdk-dev] [PATCH v6 3/3] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2019-03-08  7:37 ` [dpdk-dev] [PATCH v7 0/3] generic spinlock optimization and test case enhancements Gavin Hu
2019-03-08  7:37 ` [dpdk-dev] [PATCH v7 1/3] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2019-03-08  7:37 ` [dpdk-dev] [PATCH v7 2/3] test/spinlock: amortize the cost of getting time Gavin Hu
2019-03-08  7:37 ` [dpdk-dev] [PATCH v7 3/3] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2019-03-08  7:56 ` [dpdk-dev] [PATCH v8 0/3] generic spinlock optimization and test case enhancements Gavin Hu
2019-03-11 12:21   ` Nipun Gupta
2019-03-15 12:21   ` Ananyev, Konstantin
2019-03-15 12:21     ` Ananyev, Konstantin
2019-03-28  7:47   ` Thomas Monjalon
2019-03-28  7:47     ` Thomas Monjalon
2019-03-08  7:56 ` [dpdk-dev] [PATCH v8 1/3] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2019-03-08  7:56 ` [dpdk-dev] [PATCH v8 2/3] test/spinlock: amortize the cost of getting time Gavin Hu
2019-03-08  7:56 ` [dpdk-dev] [PATCH v8 3/3] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2019-03-12 14:53   ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-03-14  0:31     ` Honnappa Nagarahalli
2019-03-14  0:31       ` Honnappa Nagarahalli
2019-03-14  2:36       ` Gavin Hu (Arm Technology China)
2019-03-14  2:36         ` Gavin Hu (Arm Technology China)
2019-03-14 14:22   ` Jerin Jacob Kollanukkaran
2019-03-14 14:22     ` Jerin Jacob Kollanukkaran

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