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commit 3bad2358d67d371497079bba4f8eca9c0096f4e2
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Author: Stefan Liebler <stli@linux.ibm.com>
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Date: Thu Aug 30 08:44:32 2018 +0200
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Test stdlib/test-bz22786 exits now with unsupported if malloc fails.
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The test tries to allocate more than 2^31 bytes which will always fail on s390
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as it has maximum 2^31bit of memory.
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Before commit 6c3a8a9d868a8deddf0d6dcc785b6d120de90523, this test returned
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unsupported if malloc fails. This patch re enables this behaviour.
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Furthermore support_delete_temp_files() failed to remove the temp directory
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in this case as it is not empty due to the created symlink.
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Thus the creation of the symlink is moved behind malloc.
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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ChangeLog:
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* stdlib/test-bz22786.c (do_test): Return EXIT_UNSUPPORTED
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if malloc fails.
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diff --git a/stdlib/test-bz22786.c b/stdlib/test-bz22786.c
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index d1aa69106ccf6ac5..777bf9180f4b5022 100644
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--- a/stdlib/test-bz22786.c
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+++ b/stdlib/test-bz22786.c
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@@ -39,16 +39,25 @@ do_test (void)
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const char *lnk = xasprintf ("%s/symlink", dir);
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const size_t path_len = (size_t) INT_MAX + strlen (lnk) + 1;
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- TEST_VERIFY_EXIT (symlink (".", lnk) == 0);
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-
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DIAG_PUSH_NEEDS_COMMENT;
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#if __GNUC_PREREQ (7, 0)
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/* GCC 7 warns about too-large allocations; here we need such
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allocation to succeed for the test to work. */
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DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
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#endif
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- char *path = xmalloc (path_len);
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+ char *path = malloc (path_len);
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DIAG_POP_NEEDS_COMMENT;
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+ if (path == NULL)
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+ {
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+ printf ("malloc (%zu): %m\n", path_len);
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+ /* On 31-bit s390 the malloc will always fail as we do not have
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+ so much memory, and we want to mark the test unsupported.
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+ Likewise on systems with little physical memory the test will
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+ fail and should be unsupported. */
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+ return EXIT_UNSUPPORTED;
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+ }
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+
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+ TEST_VERIFY_EXIT (symlink (".", lnk) == 0);
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/* Construct very long path = "/tmp/bz22786.XXXX/symlink/aaaa....." */
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char *p = mempcpy (path, lnk, strlen (lnk));
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