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GNU C Library master sources branch master updated. glibc-2.25-117-gb36a65e


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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=b36a65e5cadc201eb840e2b7716ae878e5c3533f

commit b36a65e5cadc201eb840e2b7716ae878e5c3533f
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Mon Mar 13 10:20:05 2017 -0300

    Fix test-errno issues
    
    This patch fixes multiple issues of test-errno.c (9a56f8718341):
    
      - Rename Linux test-errno.c to test-errno-linux.c to avoid build
        the same source for both tests.
    
      - Add a mlock check for 32 bits build running on 64 bits kernels.
        Althuough man pages states that mlock fails with EINVAL if final
        address overflows, kernels does not return it for aforementioned
        condition (it returns ENOMEM instead).  Although it seems to be
        a kernel issue for compat syscall handling, I think it is worth
        to still check syscall return and document the behavior.
    
      - Initialize option lenght for setsockopt check.
    
      - Change open test from EINVAL to EISDIR.
    
    Checked on x86_64-linux-gnu and i686-linux-gnu (running on 64 bits
    kernel).
    
    	* posix/test-errno.c (do_test): Initialize setsockopt optlen.
    	* sysdeps/unix/sysv/linux/test-errno.c: Move to ...
    	* sysdeps/unix/sysv/linux/test-errno-linux.c: ... here.
    	(test_wrp_rv): Fix format.
    	(test_wrp_rv2): New macro.
    	(do_test): Handle mlock return on 64 bits kernels with 32 bits
    	binaries.

diff --git a/ChangeLog b/ChangeLog
index 06d7673..03ea36f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2017-03-13  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
+	* posix/test-errno.c (do_test): Initialize setsockopt optlen.
+	* sysdeps/unix/sysv/linux/test-errno.c: Move to ...
+	* sysdeps/unix/sysv/linux/test-errno-linux.c: ... here.
+	(test_wrp_rv): Fix format.
+	(test_wrp_rv2): New macro.
+	(do_test): Handle mlock return on 64 bits kernels with 32 bits
+	binaries.
+
 2017-03-15  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/x86/fpu/test-math-vector-sincos.h (INIT_VEC_PTRS_LOOP):
diff --git a/posix/test-errno.c b/posix/test-errno.c
index 98df344..c2bfd8a 100644
--- a/posix/test-errno.c
+++ b/posix/test-errno.c
@@ -131,7 +131,7 @@ do_test (void)
   fails |= test_wrp (EINVAL, mprotect, (void *) -1, pagesize, -1);
   fails |= test_wrp (EINVAL, msync, (void *) -1, pagesize, -1);
   fails |= test_wrp (EINVAL, munmap, (void *) -1, 0);
-  fails |= test_wrp (EINVAL, open, "/bin/sh", -1, 0);
+  fails |= test_wrp (EISDIR, open, "/bin", EISDIR, O_WRONLY);
   fails |= test_wrp (EBADF, read, -1, buf, 1);
   fails |= test_wrp (EINVAL, readlink, "/", buf, -1);
   fails |= test_wrp (EBADF, readv, -1, iov, 1);
@@ -142,7 +142,7 @@ do_test (void)
   fails |= test_wrp (EBADF, send, -1, buf, 1, 0);
   fails |= test_wrp (EBADF, sendmsg, -1, &msg, 0);
   fails |= test_wrp (EBADF, sendto, -1, buf, 1, 0, &sa, sl);
-  fails |= test_wrp (EBADF, setsockopt, -1, 0, 0, buf, sl);
+  fails |= test_wrp (EBADF, setsockopt, -1, 0, 0, buf, sizeof (*buf));
   fails |= test_wrp (EBADF, shutdown, -1, SHUT_RD);
   fails |= test_wrp (EBADF, write, -1, "Hello", sizeof ("Hello") );
   fails |= test_wrp (EBADF, writev, -1, iov, 1 );
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 6b7aa3f..1872cdb 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -43,7 +43,7 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
 		  bits/mman-linux.h
 
 tests += tst-clone tst-clone2 tst-fanotify tst-personality tst-quota \
-	 tst-sync_file_range test-errno
+	 tst-sync_file_range test-errno-linux
 
 # Generate the list of SYS_* macros for the system calls (__NR_* macros).
 
diff --git a/sysdeps/unix/sysv/linux/test-errno.c b/sysdeps/unix/sysv/linux/test-errno-linux.c
similarity index 74%
rename from sysdeps/unix/sysv/linux/test-errno.c
rename to sysdeps/unix/sysv/linux/test-errno-linux.c
index ab3735f..03a74bd 100644
--- a/sysdeps/unix/sysv/linux/test-errno.c
+++ b/sysdeps/unix/sysv/linux/test-errno-linux.c
@@ -1,4 +1,5 @@
 /* Test that failing system calls do set errno to the correct value.
+   Linux sycalls version.
 
    Copyright (C) 2017 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
@@ -72,27 +73,55 @@
     rtype ret = syscall (__VA_ARGS__);				\
     int err = errno;						\
     int fail;							\
-    if (ret == (rtype) -1 && err == experr)			\
+    if ((ret == (rtype) -1) && (err == experr))			\
       fail = 0;							\
     else							\
       {								\
         fail = 1;						\
         if (ret != (rtype) -1)					\
           printf ("FAIL: " #syscall ": didn't fail as expected"	\
-               " (return "prtype")\n", ret);			\
+		  " (return "prtype")\n", ret);			\
         else if (err == 0xdead)					\
-          puts("FAIL: " #syscall ": didn't update errno\n");	\
+          puts ("FAIL: " #syscall ": didn't update errno");	\
         else if (err != experr)					\
           printf ("FAIL: " #syscall				\
-               ": errno is: %d (%s) expected: %d (%s)\n",	\
-               err, strerror (err), experr, strerror (experr));	\
+		  ": errno is: %d (%s) expected: %d (%s)\n",	\
+		  err, strerror (err), experr, strerror (experr));\
       }								\
     fail;							\
   }))
 
+#define test_wrp_rv2(rtype, prtype, experr1, experr2, syscall, ...) 	\
+  (__extension__ ({							\
+    errno = 0xdead;							\
+    rtype ret = syscall (__VA_ARGS__);					\
+    int err = errno;							\
+    int fail;								\
+    if ((ret == (rtype) -1) && ((err == experr1) || (err == experr2)))	\
+      fail = 0;								\
+    else								\
+      {									\
+        fail = 1;							\
+        if (ret != (rtype) -1)						\
+          printf ("FAIL: " #syscall ": didn't fail as expected"		\
+		  " (return "prtype")\n", ret);				\
+        else if (err == 0xdead)						\
+          puts ("FAIL: " #syscall ": didn't update errno");		\
+        else if (err != experr1 && err != experr2)			\
+          printf ("FAIL: " #syscall					\
+		  ": errno is: %d (%s) expected: %d (%s) or %d (%s)\n",	\
+		  err, strerror (err), experr1, strerror (experr1),	\
+		  experr2, strerror (experr2));				\
+      }									\
+    fail;								\
+  }))
+
 #define test_wrp(experr, syscall, ...)				\
   test_wrp_rv(int, "%d", experr, syscall, __VA_ARGS__)
 
+#define test_wrp2(experr1, experr2, syscall, ...)		\
+  test_wrp_rv2(int, "%d", experr1, experr2, syscall, __VA_ARGS__)
+
 static int
 do_test (void)
 {
@@ -120,7 +149,12 @@ do_test (void)
   fails |= test_wrp (ESRCH, getpgid, -1);
   fails |= test_wrp (EINVAL, inotify_add_watch, -1, "/", 0);
   fails |= test_wrp (EINVAL, mincore, (void *) -1, 0, vec);
-  fails |= test_wrp (EINVAL, mlock, (void *) -1, 1); // different errors
+  /* mlock fails if the result of the addition addr+len was less than addr
+     (which indicates final address overflow), however on 32 bits binaries
+     running on 64 bits kernels, internal syscall address check won't result
+     in an invalid address and thus syscalls fails later in vma
+     allocation.  */
+  fails |= test_wrp2 (EINVAL, ENOMEM, mlock, (void *) -1, 1);
   fails |= test_wrp (EINVAL, nanosleep, &ts, &ts);
   fails |= test_wrp (EINVAL, poll, &pollfd, -1, 0);
   fails |= test_wrp (ENODEV, quotactl, Q_GETINFO, NULL, -1, (caddr_t) &dqblk);

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |   10 ++++
 posix/test-errno.c                                 |    4 +-
 sysdeps/unix/sysv/linux/Makefile                   |    2 +-
 .../linux/{test-errno.c => test-errno-linux.c}     |   46 +++++++++++++++++---
 4 files changed, 53 insertions(+), 9 deletions(-)
 rename sysdeps/unix/sysv/linux/{test-errno.c => test-errno-linux.c} (74%)


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