X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=3879f8fc564cd5d0259998b5d893e3f39e84a0dc;hp=8e7ff4c15b4f8914f5de15290e506347565f7387;hb=6eca921cbd5435249e55f2ec9d4a50b171d09972;hpb=4477a87021ffbfbfdb2a2084d05a084171343d36

diff --git a/configure.ac b/configure.ac
index 8e7ff4c..3879f8f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,7 @@ AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.])
 AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.])
 AH_TEMPLATE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [Require the operating system to support the membarrier system call for default and bulletproof flavors.])
 AH_TEMPLATE([CONFIG_RCU_DEBUG], [Enable internal debugging self-checks. Introduce performance penalty.])
+AH_TEMPLATE([CONFIG_CDS_LFHT_ITER_DEBUG], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.])
 
 # Allow requiring the operating system to support the membarrier system
 # call. Applies to default and bulletproof flavors.
@@ -268,6 +269,13 @@ AS_IF([test "x$enable_rcu_debug" = "xyes"], [
        AC_DEFINE([CONFIG_RCU_DEBUG], [1])
 ])
 
+# rculfhash iterator debugging
+AC_ARG_ENABLE([cds-lfht-iter-debug],
+      AS_HELP_STRING([--enable-cds-lfht-iter-debug], [Enable extra debugging checks for lock-free hash table iterator traversal. Alters the rculfhash ABI. Make sure to compile both library and application with matching configuration.]))
+AS_IF([test "x$enable_cds_lfht_iter_debug" = "xyes"], [
+       AC_DEFINE([CONFIG_CDS_LFHT_ITER_DEBUG], [1])
+])
+
 # From the sched_setaffinity(2)'s man page:
 # ~~~~
 # The CPU affinity system calls were introduced in Linux kernel 2.5.8.
@@ -373,7 +381,7 @@ AC_CHECK_FUNCS([sched_setaffinity],[
 AM_CPPFLAGS="-include config.h"
 AC_SUBST(AM_CPPFLAGS)
 
-AM_CFLAGS="-Wall $AM_CFLAGS"
+AM_CFLAGS="-Wall -Wextra -Wno-unused-parameter $AM_CFLAGS"
 AC_SUBST(AM_CFLAGS)
 
 AC_CONFIG_LINKS([
@@ -508,6 +516,10 @@ PPRINT_PROP_BOOL([Require membarrier], $value)
 test "x$enable_rcu_debug" = "xyes" && value=1 || value=0
 PPRINT_PROP_BOOL([Internal debugging], $value)
 
+# rculfhash iterator debug enabled/disabled
+test "x$enable_cds_lfht_iter_debug" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([Lock-free hash table iterator debugging], $value)
+
 PPRINT_PROP_BOOL([Multi-flavor support], 1)
 
 report_bindir="`eval eval echo $bindir`"