[dpdk-dev] [PATCH] eal: add config option to enable asserts
Xueming Li
xuemingl at mellanox.com
Wed Aug 23 16:00:08 CEST 2017
Currently, enabling assertion have to set CONFIG_RTE_LOG_LEVEL to
RTE_LOG_DEBUG. CONFIG_RTE_LOG_LEVEL is the default log level of control
path, RTE_LOG_DP_LEVEL is the log level of data path. It's a little bit
hard to understand literally that assertion is decided by control path
LOG_LEVEL, especially assertion used on data path.
On the other hand, DPDK need an assertion enabling switch w/o impacting
log output level, assuming "--log-level" not specified.
Assertion is an important API to balance DPDK high performance and
robustness. To promote assertion usage, it's valuable to unhide
assertion out of COFNIG_RTE_LOG_LEVEL.
In one word, log is log, assertion is assertion, debug is hot pot :)
Rationale of this patch is to introduce an independant switch of
assertion.
BTW, CONFIG_RTE_LOG_LEVEL is merely a default value of runtime global
log level, not sure the value to keep it in compile time configuration.
Signed-off-by: Xueming Li <xuemingl at mellanox.com>
---
config/common_base | 1 +
lib/librte_eal/common/include/rte_debug.h | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/config/common_base b/config/common_base
index 5e97a08b6..ce14b1cac 100644
--- a/config/common_base
+++ b/config/common_base
@@ -93,6 +93,7 @@ CONFIG_RTE_MAX_NUMA_NODES=8
CONFIG_RTE_MAX_MEMSEG=256
CONFIG_RTE_MAX_MEMZONE=2560
CONFIG_RTE_MAX_TAILQ=32
+CONFIG_RTE_ASSERTION=n
CONFIG_RTE_LOG_LEVEL=RTE_LOG_INFO
CONFIG_RTE_LOG_DP_LEVEL=RTE_LOG_INFO
CONFIG_RTE_LOG_HISTORY=256
diff --git a/lib/librte_eal/common/include/rte_debug.h b/lib/librte_eal/common/include/rte_debug.h
index cab6fb4c9..d1104c240 100644
--- a/lib/librte_eal/common/include/rte_debug.h
+++ b/lib/librte_eal/common/include/rte_debug.h
@@ -79,7 +79,7 @@ void rte_dump_registers(void);
#define rte_panic(...) rte_panic_(__func__, __VA_ARGS__, "dummy")
#define rte_panic_(func, format, ...) __rte_panic(func, format "%.0s", __VA_ARGS__)
-#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+#ifdef RTE_ASSERTION
#define RTE_ASSERT(exp) RTE_VERIFY(exp)
#else
#define RTE_ASSERT(exp) do {} while (0)
--
2.13.3
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