New libcs may have unshare but old ones do not. Make a "weak" definition
which will defer to libc.
Signed-off-by: Matt Helsley <matthltc@xxxxxxxxxx>
---
nsexec.c | 5 +++++
test/ipcshm_multi.c | 6 ++++++
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/nsexec.c b/nsexec.c
index 1cf9c97..a9ed016 100644
--- a/nsexec.c
+++ b/nsexec.c
@@ -27,6 +27,11 @@ extern pid_t getsid(pid_t pid);
static const char* procname;
+int __attribute__((weak)) unshare(int flags)
+{
+ return syscall(__NR_unshare, flags);
+}
+
static void usage(const char *name)
{
printf("usage: %s [-h] [-c] [-mnuUip] [-P <pid-file>]"
diff --git a/test/ipcshm_multi.c b/test/ipcshm_multi.c
index ff3712f..da37feb 100644
--- a/test/ipcshm_multi.c
+++ b/test/ipcshm_multi.c
@@ -13,6 +13,12 @@
/* For CLONE_NEWIPC */
#include "../clone.h"
+int __attribute__((weak)) unshare(int flags)
+{
+ return syscall(__NR_unshare, flags);
+}
+
+
#define OUTFILE "/tmp/cr-test.out"
#define SEG_SIZE (20 * 4096)
#define DELAY 20
--
1.6.3.3
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