From bf70f6f1face8e36030544a74e5ea04903df16cb Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@uclibc-ng.org>
Date: Wed, 8 Jun 2016 21:49:04 +0200
Subject: test: add new mmap tests from glibc
Rename mmap2 test as this is a ARM specific test, only
execute on ARM systems. Add more new tests from glibc.
---
test/mmap/Makefile.in | 6 +++
test/mmap/mmap-arm.c | 46 +++++++++++++++++
test/mmap/mmap2.c | 46 -----------------
test/mmap/tst-mmap-eofsync.c | 106 ++++++++++++++++++++++++++++++++++++++++
test/mmap/tst-mmap-fflushsync.c | 99 +++++++++++++++++++++++++++++++++++++
test/mmap/tst-mmap-offend.c | 86 ++++++++++++++++++++++++++++++++
test/mmap/tst-mmap-setvbuf.c | 81 ++++++++++++++++++++++++++++++
7 files changed, 424 insertions(+), 46 deletions(-)
create mode 100644 test/mmap/Makefile.in
create mode 100644 test/mmap/mmap-arm.c
delete mode 100644 test/mmap/mmap2.c
create mode 100644 test/mmap/tst-mmap-eofsync.c
create mode 100644 test/mmap/tst-mmap-fflushsync.c
create mode 100644 test/mmap/tst-mmap-offend.c
create mode 100644 test/mmap/tst-mmap-setvbuf.c
diff --git a/test/mmap/Makefile.in b/test/mmap/Makefile.in
new file mode 100644
index 000000000..7bb34acb6
--- /dev/null
+++ b/test/mmap/Makefile.in
@@ -0,0 +1,6 @@
+# uClibc mmap tests
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+
+ifneq ($(TARGET_ARCH),arm)
+TESTS_DISABLED += mmap-arm
+endif
diff --git a/test/mmap/mmap-arm.c b/test/mmap/mmap-arm.c
new file mode 100644
index 000000000..8b94c6199
--- /dev/null
+++ b/test/mmap/mmap-arm.c
@@ -0,0 +1,46 @@
+/* When trying to map /dev/mem with offset 0xFFFFF000 on the ARM platform, mmap
+ * returns -EOVERFLOW.
+ *
+ * Since off_t is defined as a long int and the sign bit is set in the address,
+ * the shift operation shifts in ones instead of zeroes
+ * from the left. This results the offset sent to the kernel function becomes
+ * 0xFFFFFFFF instead of 0x000FFFFF with MMAP2_PAGE_SHIFT set to 12.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#define FATAL do { fprintf(stderr, "Error at line %d, file %s (%d) [%s]\n", \
+ __LINE__, __FILE__, errno, strerror(errno)); exit(1); } while(0)
+
+#define MAP_SIZE 4096UL
+#define MAP_MASK (MAP_SIZE - 1)
+
+int main(int argc, char **argv) {
+ void* map_base = 0;
+ int fd;
+ off_t target = 0xfffff000;
+ if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) {
+ /* skip test for non-root users */
+ if (errno == EACCES)
+ return 0;
+ FATAL;
+ }
+ printf("/dev/mem opened.\n");
+ fflush(stdout);
+
+ /* Map one page */
+ map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+ fd, target & ~MAP_MASK);
+ if(map_base == (void *) -1) FATAL;
+ printf("Memory mapped at address %p.\n", map_base);
+ fflush(stdout);
+ if(munmap(map_base, MAP_SIZE) == -1) FATAL;
+ close(fd);
+ return 0;
+}
diff --git a/test/mmap/mmap2.c b/test/mmap/mmap2.c
deleted file mode 100644
index 8b94c6199..000000000
--- a/test/mmap/mmap2.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/* When trying to map /dev/mem with offset 0xFFFFF000 on the ARM platform, mmap
- * returns -EOVERFLOW.
- *
- * Since off_t is defined as a long int and the sign bit is set in the address,
- * the shift operation shifts in ones instead of zeroes
- * from the left. This results the offset sent to the kernel function becomes
- * 0xFFFFFFFF instead of 0x000FFFFF with MMAP2_PAGE_SHIFT set to 12.
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#define FATAL do { fprintf(stderr, "Error at line %d, file %s (%d) [%s]\n", \
- __LINE__, __FILE__, errno, strerror(errno)); exit(1); } while(0)
-
-#define MAP_SIZE 4096UL
-#define MAP_MASK (MAP_SIZE - 1)
-
-int main(int argc, char **argv) {
- void* map_base = 0;
- int fd;
- off_t target = 0xfffff000;
- if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) {
- /* skip test for non-root users */
- if (errno == EACCES)
- return 0;
- FATAL;
- }
- printf("/dev/mem opened.\n");
- fflush(stdout);
-
- /* Map one page */
- map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
- fd, target & ~MAP_MASK);
- if(map_base == (void *) -1) FATAL;
- printf("Memory mapped at address %p.\n", map_base);
- fflush(stdout);
- if(munmap(map_base, MAP_SIZE) == -1) FATAL;
- close(fd);
- return 0;
-}
diff --git a/test/mmap/tst-mmap-eofsync.c b/test/mmap/tst-mmap-eofsync.c
new file mode 100644
index 000000000..e8ef72714
--- /dev/null
+++ b/test/mmap/tst-mmap-eofsync.c
@@ -0,0 +1,106 @@
+/* Test program for synchronization of stdio state with file after EOF. */
+
+#include <stdio.h>
+#include <error.h>
+#include <errno.h>
+
+static void do_prepare (void);
+#define PREPARE(argc, argv) do_prepare ()
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>
+
+static char *temp_file;
+static int temp_fd;
+
+static char text1[] = "Line the first\n";
+static char text2[] = "Line the second\n";
+
+static void
+do_prepare (void)
+{
+ temp_fd = create_temp_file ("tst-mmap-eofsync.", &temp_file);
+ if (temp_fd == -1)
+ error (1, errno, "cannot create temporary file");
+ else
+ {
+ ssize_t cc = write (temp_fd, text1, sizeof text1 - 1);
+ if (cc != sizeof text1 - 1)
+ error (1, errno, "cannot write to temporary file");
+ }
+}
+
+static int
+do_test (void)
+{
+ FILE *f;
+ char buf[128];
+ int result = 0;
+ int c;
+
+ f = fopen (temp_file, "rm");
+ if (f == NULL)
+ {
+ perror (temp_file);
+ return 1;
+ }
+
+ if (fgets (buf, sizeof buf, f) == NULL)
+ {
+ perror ("fgets");
+ return 1;
+ }
+
+ if (strcmp (buf, text1))
+ {
+ printf ("read \"%s\", expected \"%s\"\n", buf, text1);
+ result = 1;
+ }
+
+ printf ("feof = %d, ferror = %d immediately after fgets\n",
+ feof (f), ferror (f));
+
+#if 1
+ c = fgetc (f);
+ if (c == EOF)
+ printf ("fgetc -> EOF (feof = %d, ferror = %d)\n",
+ feof (f), ferror (f));
+ else
+ {
+ printf ("fgetc returned %o (feof = %d, ferror = %d)\n",
+ c, feof (f), ferror (f));
+ result = 1;
+ }
+#endif
+
+ c = write (temp_fd, text2, sizeof text2 - 1);
+ if (c == sizeof text2 - 1)
+ printf ("wrote more to file\n");
+ else
+ {
+ printf ("wrote %d != %zd (%m)\n", c, sizeof text2 - 1);
+ result = 1;
+ }
+
+ if (fgets (buf, sizeof buf, f) == NULL)
+ {
+ printf ("second fgets fails: feof = %d, ferror = %d (%m)\n",
+ feof (f), ferror (f));
+ clearerr (f);
+ if (fgets (buf, sizeof buf, f) == NULL)
+ {
+ printf ("retry fgets fails: feof = %d, ferror = %d (%m)\n",
+ feof (f), ferror (f));
+ result = 1;
+ }
+ }
+ if (result == 0 && strcmp (buf, text2))
+ {
+ printf ("second time read \"%s\", expected \"%s\"\n", buf, text2);
+ result = 1;
+ }
+
+ fclose (f);
+
+ return result;
+}
diff --git a/test/mmap/tst-mmap-fflushsync.c b/test/mmap/tst-mmap-fflushsync.c
new file mode 100644
index 000000000..24ae33cae
--- /dev/null
+++ b/test/mmap/tst-mmap-fflushsync.c
@@ -0,0 +1,99 @@
+/* Test program for synchronization of stdio state with file after fflush. */
+
+#include <stdio.h>
+#include <error.h>
+#include <errno.h>
+
+static void do_prepare (void);
+#define PREPARE(argc, argv) do_prepare ()
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>
+
+static char *temp_file;
+static int temp_fd;
+
+static char text1[] = "Line the first\n";
+static char text2[] = "Line the second\n";
+
+static void
+do_prepare (void)
+{
+ temp_fd = create_temp_file ("tst-mmap-eofsync.", &temp_file);
+ if (temp_fd == -1)
+ error (1, errno, "cannot create temporary file");
+ else
+ {
+ ssize_t cc = write (temp_fd, text1, sizeof text1 - 1);
+ if (cc != sizeof text1 - 1)
+ error (1, errno, "cannot write to temporary file");
+ }
+}
+
+static int
+do_test (void)
+{
+ FILE *f;
+ char buf[128];
+ int result = 0;
+ int c;
+
+ f = fopen (temp_file, "rm");
+ if (f == NULL)
+ {
+ perror (temp_file);
+ return 1;
+ }
+
+ if (fgets (buf, sizeof buf, f) == NULL)
+ {
+ perror ("fgets");
+ return 1;
+ }
+
+ if (strcmp (buf, text1))
+ {
+ printf ("read \"%s\", expected \"%s\"\n", buf, text1);
+ result = 1;
+ }
+
+ printf ("feof = %d, ferror = %d immediately after fgets\n",
+ feof (f), ferror (f));
+
+ if (fflush (f) != 0)
+ {
+ printf ("fflush failed! %m\n");
+ result = 1;
+ }
+
+ c = write (temp_fd, text2, sizeof text2 - 1);
+ if (c == sizeof text2 - 1)
+ printf ("wrote more to file\n");
+ else
+ {
+ printf ("wrote %d != %zd (%m)\n", c, sizeof text2 - 1);
+ result = 1;
+ }
+
+ if (fgets (buf, sizeof buf, f) == NULL)
+ {
+ printf ("second fgets fails: feof = %d, ferror = %d (%m)\n",
+ feof (f), ferror (f));
+ clearerr (f);
+ if (fgets (buf, sizeof buf, f) == NULL)
+ {
+ printf ("retry fgets fails: feof = %d, ferror = %d (%m)\n",
+ feof (f), ferror (f));
+ result = 1;
+ }
+ }
+ if (result == 0 && strcmp (buf, text2))
+ {
+ printf ("second time read \"%s\", expected \"%s\"\n", buf, text2);
+ result = 1;
+ }
+
+ fclose (f);
+
+ return result;
+}
diff --git a/test/mmap/tst-mmap-offend.c b/test/mmap/tst-mmap-offend.c
new file mode 100644
index 000000000..19732e620
--- /dev/null
+++ b/test/mmap/tst-mmap-offend.c
@@ -0,0 +1,86 @@
+/* Test case for bug with mmap stdio read past end of file. */
+
+#include <stdio.h>
+#include <error.h>
+#include <errno.h>
+
+static void do_prepare (void);
+#define PREPARE(argc, argv) do_prepare ()
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>
+
+static char *temp_file;
+
+static const char text1[] = "hello\n";
+
+static void
+do_prepare (void)
+{
+ int temp_fd = create_temp_file ("tst-mmap-offend.", &temp_file);
+ if (temp_fd == -1)
+ error (1, errno, "cannot create temporary file");
+ else
+ {
+ ssize_t cc = write (temp_fd, text1, sizeof text1 - 1);
+ if (cc != sizeof text1 - 1)
+ error (1, errno, "cannot write to temporary file");
+ }
+ close (temp_fd);
+}
+
+static int
+do_test (void)
+{
+ unsigned char buffer[8192];
+ int result = 0;
+ FILE *f = fopen (temp_file, "rm");
+ size_t cc;
+
+ if (f == NULL)
+ {
+ perror (temp_file);
+ return 1;
+ }
+
+ cc = fread (buffer, 1, sizeof (buffer), f);
+ printf ("fread %zu: \"%.*s\"\n", cc, (int) cc, buffer);
+ if (cc != sizeof text1 - 1)
+ {
+ perror ("fread");
+ result = 1;
+ }
+
+ if (fseek (f, 2048, SEEK_SET) != 0)
+ {
+ perror ("fseek off end");
+ result = 1;
+ }
+
+ if (fread (buffer, 1, sizeof (buffer), f) != 0
+ || ferror (f) || !feof (f))
+ {
+ printf ("after fread error %d eof %d\n",
+ ferror (f), feof (f));
+ result = 1;
+ }
+
+ printf ("ftell %ld\n", ftell (f));
+
+ if (fseek (f, 0, SEEK_SET) != 0)
+ {
+ perror ("fseek rewind");
+ result = 1;
+ }
+
+ cc = fread (buffer, 1, sizeof (buffer), f);
+ printf ("fread after rewind %zu: \"%.*s\"\n", cc, (int) cc, buffer);
+ if (cc != sizeof text1 - 1)
+ {
+ perror ("fread after rewind");
+ result = 1;
+ }
+
+ fclose (f);
+ return result;
+}
diff --git a/test/mmap/tst-mmap-setvbuf.c b/test/mmap/tst-mmap-setvbuf.c
new file mode 100644
index 000000000..33d60b7bd
--- /dev/null
+++ b/test/mmap/tst-mmap-setvbuf.c
@@ -0,0 +1,81 @@
+/* Test setvbuf on readonly fopen (using mmap stdio).
+ Copyright (C) 2002-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int main (void)
+{
+ char name[] = "/tmp/tst-mmap-setvbuf.XXXXXX";
+ char buf[4096];
+ const char * const test = "Let's see if mmap stdio works with setvbuf.\n";
+ char temp[strlen (test) + 1];
+ int fd = mkstemp (name);
+ FILE *f;
+
+ if (fd == -1)
+ {
+ printf ("%u: cannot open temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ f = fdopen (fd, "w");
+ if (f == NULL)
+ {
+ printf ("%u: cannot fdopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ fputs (test, f);
+ fclose (f);
+
+ f = fopen (name, "rm");
+ if (f == NULL)
+ {
+ printf ("%u: cannot fopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (setvbuf (f, buf, _IOFBF, sizeof buf))
+ {
+ printf ("%u: setvbuf failed: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fread (temp, 1, strlen (test), f) != strlen (test))
+ {
+ printf ("%u: couldn't read the file back: %m\n", __LINE__);
+ exit (1);
+ }
+ temp [strlen (test)] = '\0';
+
+ if (strcmp (test, temp))
+ {
+ printf ("%u: read different string than was written:\n%s%s",
+ __LINE__, test, temp);
+ exit (1);
+ }
+
+ fclose (f);
+
+ unlink (name);
+ exit (0);
+}
--
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