From: Masatake YAMATO <yamato@redhat.com>
Date: Fri, 9 Jan 2026 02:48:35 +0000 (+0900)
Subject: tests: (test_mkfds::mmap) add "shared" paramter
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0be33155f7a96725312d90a7fe330a7d82e910cc;p=thirdparty%2Futil-linux.git

tests: (test_mkfds::mmap) add "shared" paramter

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
---

diff --git a/tests/helpers/test_mkfds.c b/tests/helpers/test_mkfds.c
index 7847807ad..b3be3d637 100644
--- a/tests/helpers/test_mkfds.c
+++ b/tests/helpers/test_mkfds.c
@@ -3066,17 +3066,21 @@ static void *make_mmap(const struct factory *factory, struct fdesc fdescs[] _U_,
 {
 	struct arg file = decode_arg("file", factory->params, argc, argv);
 	const char *sfile = ARG_STRING(file);
+	struct arg shared = decode_arg("shared", factory->params, argc, argv);
+	bool bshared = ARG_BOOLEAN(shared);
 
 	int fd = open(sfile, O_RDONLY);
 	if (fd < 0)
 		err(EXIT_FAILURE, "failed in opening %s", sfile);
+	free_arg(&shared);
 	free_arg(&file);
 
 	struct stat sb;
 	if (fstat(fd, &sb) < 0) {
 		err(EXIT_FAILURE, "failed in fstat()");
 	}
-	char *addr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	char *addr = mmap(NULL, sb.st_size, PROT_READ,
+			  bshared ? MAP_SHARED : MAP_PRIVATE, fd, 0);
 	if (addr == MAP_FAILED) {
 		err(EXIT_FAILURE, "failed in mmap()");
 	}
@@ -4308,6 +4312,12 @@ static const struct factory factories[] = {
 				.desc = "file to be opened",
 				.defv.string = "/etc/passwd",
 			},
+			{
+				.name = "shared",
+				.type = PTYPE_BOOLEAN,
+				.desc = "use MAP_SHARED",
+				.defv.boolean = FALSE,
+			},
 			PARAM_END
 		},
 	},