1 files changed, 90 insertions, 0 deletions
diff --git a/none/tests/solaris/mmap_noreserve.c b/none/tests/solaris/mmap_noreserve.c
new file mode 100644
index 000000000..975e95127
--- /dev/null
+++ b/none/tests/solaris/mmap_noreserve.c
@@ -0,0 +1,90 @@
+/* Maps several pages with or without MAP_NORESEVE.
+   Mappings with MAP_NORESEVE do not show in /proc/self/xmap
+   (only in /proc/self/rmap) until they actually materialize.
+   Very nice from Solaris kernel :-(
+ */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <wait.h>
+#include <sys/mman.h>
+#include <sys/param.h>
+
+static void *do_map(int flags)
+{
+   flags |= MAP_PRIVATE | MAP_ANON;
+   void *addr = mmap(0, PAGESIZE, PROT_READ | PROT_WRITE, flags, -1, 0);
+   if (addr == NULL) {
+      perror("mmap");
+      exit(1);
+   } else {
+      return addr;
+   }
+}
+
+static void *do_dlopen(const char *pathname)
+{
+   int mode = RTLD_LAZY | RTLD_LOCAL;
+   void *handle = dlopen(pathname, mode);
+   if (handle == NULL) {
+      fprintf(stderr, "dlopen failed for %s: %s",
+              pathname, dlerror());
+      exit(1);
+   } else {
+      return handle;
+   }
+}
+
+int main(int argc, const char *argv[])
+{
+   do_map(MAP_NORESERVE);
+   do_dlopen("libm.so");
+   do_map(0);
+   do_map(0);
+   do_map(MAP_NORESERVE);
+   do_dlopen("liby.so");
+   do_map(MAP_NORESERVE);
+   do_map(0);
+   do_map(0);
+   do_map(MAP_NORESERVE);
+   do_map(MAP_NORESERVE);
+   do_dlopen("libz.so");
+   do_map(MAP_NORESERVE);
+   do_map(MAP_NORESERVE);
+   do_map(0);
+
+   pid_t pid = fork();
+   if (pid == -1) {
+      perror("fork");
+      exit(1);
+   }
+
+   if (pid == 0) {
+      do_map(MAP_NORESERVE);
+      do_map(0);
+      do_map(0);
+      do_dlopen("libw.so");
+      do_map(0);
+      do_map(MAP_NORESERVE);
+      do_map(MAP_NORESERVE);
+      do_map(0);
+      printf("CHILD: PASSED\n");
+      fflush(stdout);
+      return 0;
+   }
+
+   int status;
+   if (waitpid(pid, &status, 0) != pid) {
+      perror("waitpid");
+   } else if ((WIFEXITED(status) != 0) && (WEXITSTATUS(status) == 0)) {
+      printf("PASSED\n");
+   } else {
+      fprintf(stderr, "FAILED: child exited with unexpected status %s %d\n",
+              WIFEXITED(status) ? "exit" : "signal", 
+              WIFEXITED(status) ? WEXITSTATUS(status) : WTERMSIG(status));
+   }
+
+   return 0;
+}