From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Thu, 14 Jun 2018 20:39:30 +0000 (-0700)
Subject: Add a test program for the membarrier() system call
X-Git-Tag: VALGRIND_3_14_0~101
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e9a82f3d759189868f7bdb33729dfe4c0bbc119c;p=thirdparty%2Fvalgrind.git

Add a test program for the membarrier() system call

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
---

diff --git a/configure.ac b/configure.ac
index 306fbc78e7..71c96ed52b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1727,6 +1727,20 @@ if test "$sys_user_has_user_regs" = "yes"; then
             [Define to 1 if <sys/user.h> defines struct user_regs_struct])
 fi
 
+AC_MSG_CHECKING([for __NR_membarrier])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <linux/unistd.h>
+]], [[
+return __NR_membarrier
+]])], [
+ac_have_nr_membarrier=yes
+AC_MSG_RESULT([yes])
+], [
+ac_have_nr_membarrier=no
+AC_MSG_RESULT([no])
+])
+
+AM_CONDITIONAL(HAVE_NR_MEMBARRIER, [test x$ac_have_nr_membarrier = xyes])
 
 #----------------------------------------------------------------------------
 # Checking for supported compiler flags.
diff --git a/none/tests/linux/Makefile.am b/none/tests/linux/Makefile.am
index 299476dfd9..d16ac4d0f4 100644
--- a/none/tests/linux/Makefile.am
+++ b/none/tests/linux/Makefile.am
@@ -8,6 +8,7 @@ EXTRA_DIST = \
 	brk-overflow1.stderr.exp brk-overflow1.vgtest \
 	brk-overflow2.stderr.exp brk-overflow2.vgtest \
 	clonev.stdout.exp clonev.stderr.exp clonev.vgtest \
+        membarrier.sterr.exp membarrier.vgtest \
 	mremap.stderr.exp mremap.stderr.exp-glibc27 mremap.stdout.exp \
 	    mremap.vgtest \
 	mremap2.stderr.exp mremap2.stdout.exp mremap2.vgtest \
@@ -32,6 +33,10 @@ check_PROGRAMS = \
 	pthread-stack \
 	stack-overflow
 
+if HAVE_NR_MEMBARRIER
+        check_PROGRAMS += membarrier
+endif
+
 
 AM_CFLAGS   += $(AM_FLAG_M3264_PRI)
 AM_CXXFLAGS += $(AM_FLAG_M3264_PRI)
diff --git a/none/tests/linux/membarrier.c b/none/tests/linux/membarrier.c
new file mode 100644
index 0000000000..f7199ac5cc
--- /dev/null
+++ b/none/tests/linux/membarrier.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <linux/unistd.h>
+
+int main(int argc, char **argv)
+{
+   syscall(__NR_membarrier, 0/*query*/);
+   fprintf(stderr, "Done.\n");
+   return 0;
+}
diff --git a/none/tests/linux/membarrier.stderr.exp b/none/tests/linux/membarrier.stderr.exp
new file mode 100644
index 0000000000..eb9b6c15c3
--- /dev/null
+++ b/none/tests/linux/membarrier.stderr.exp
@@ -0,0 +1,3 @@
+
+Done.
+
diff --git a/none/tests/linux/membarrier.vgtest b/none/tests/linux/membarrier.vgtest
new file mode 100644
index 0000000000..542e2ca265
--- /dev/null
+++ b/none/tests/linux/membarrier.vgtest
@@ -0,0 +1 @@
+prog: membarrier