[LTP] [PATCH v2] sigaction:16-1: leave it untested on the Linux kernel less than 2.6.22

[Peng H. <pe...@cn...>]

As the Linux signal(7) said:
POSIX semaphore interfaces: sem_wait(3) and sem_timedwait(3) (since Linux 2.6.22; beforehand, always failed with EINTR).

So, on Linux, we just leave this untested when the kernel version
is less than 2.6.22.

Signed-off-by: Peng Haitao <pe...@cn...>
Signed-off-by: Jan Stancek <jst...@re...>
---
 testcases/open_posix_testsuite/Makefile            |  4 ++++
 testcases/open_posix_testsuite/Makefile.linux      | 22 ++++++++++++++++++++++
 .../open_posix_testsuite/scripts/tst_kvercmp.sh    | 20 ++++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 testcases/open_posix_testsuite/Makefile.linux
 create mode 100755 testcases/open_posix_testsuite/scripts/tst_kvercmp.sh

diff --git a/testcases/open_posix_testsuite/Makefile b/testcases/open_posix_testsuite/Makefile
index 9c61fa4..500ddc2 100644
--- a/testcases/open_posix_testsuite/Makefile
+++ b/testcases/open_posix_testsuite/Makefile
@@ -40,6 +40,10 @@ exec_prefix?=		$(prefix)
 
 all: conformance-all functional-all stress-all tools-all
 
+ifeq ($(shell uname -s), Linux)
+include Makefile.linux
+endif
+
 clean: $(CRITICAL_MAKEFILES)
 	@rm -f $(LOGFILE)*
 	@for dir in $(SUBDIRS) tools; do \
diff --git a/testcases/open_posix_testsuite/Makefile.linux b/testcases/open_posix_testsuite/Makefile.linux
new file mode 100644
index 0000000..4a32c07
--- /dev/null
+++ b/testcases/open_posix_testsuite/Makefile.linux
@@ -0,0 +1,22 @@
+all: conformance-all functional-all stress-all tools-all filter-broken
+
+cmd_disable = @set -e; \
+	echo "Disabling: $(1)"; \
+	echo "\#!/bin/sh" > $(1); \
+	echo "echo $(1) skipped" >> $(1); \
+	echo "echo $(2)" >> $(1); \
+	echo "exit 0" >> $(1); \
+	chmod a+x $(1)
+
+BROKEN :=
+
+kver_cmp = $(shell $(top_srcdir)/scripts/tst_kvercmp.sh 2 6 22)
+ifeq ($(kver_cmp), 1)
+BROKEN += t_sigaction_16-1
+endif
+
+filter-broken: $(BROKEN)
+
+t_sigaction_16-1:
+	$(call cmd_disable,conformance/interfaces/sigaction/sigaction_16-1.run-test, \
+	  This fails on old linux because sem_wait always be interrupted by a signal.)
diff --git a/testcases/open_posix_testsuite/scripts/tst_kvercmp.sh b/testcases/open_posix_testsuite/scripts/tst_kvercmp.sh
new file mode 100755
index 0000000..d0e101c
--- /dev/null
+++ b/testcases/open_posix_testsuite/scripts/tst_kvercmp.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+if [ $# -ne 3 ]; then
+	echo "Usgae: ./tst_kvercmp.sh r1 r2 r3"
+	exit 1
+fi
+
+ker_ver=$(uname -r)
+r1=$(echo ${ker_ver} | awk -F. '{print $1}')
+r2=$(echo ${ker_ver} | awk -F. '{print $2}')
+r3=$(echo ${ker_ver} | awk -F. '{print $3}')
+r3=${r3%-*}
+
+test_ver=$(($1 * 65536 + $2 * 256 + $3))
+curr_ver=$((${r1} * 65536 + ${r2} * 256 + ${r3}))
+if [ ${curr_ver} -ge ${test_ver} ]; then
+	echo 0
+else
+	echo 1
+fi
-- 
1.8.3.1