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commit ed983107bbc62245b06b99f02e69acf36a0baa3e
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Author: H.J. Lu <hjl.tools@gmail.com>
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Date: Wed May 23 03:59:56 2018 -0700
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Add a test case for [BZ #23196]
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[BZ #23196]
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* string/test-memcpy.c (do_test1): New function.
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(test_main): Call it.
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diff --git a/string/test-memcpy.c b/string/test-memcpy.c
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index d252400bf5254eee..10a09d0b0fb50dc5 100644
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--- a/string/test-memcpy.c
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+++ b/string/test-memcpy.c
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@@ -206,6 +206,50 @@ do_random_tests (void)
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}
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}
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+static void
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+do_test1 (void)
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+{
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+ size_t size = 0x100000;
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+ void *large_buf;
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+
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+ large_buf = mmap (NULL, size * 2 + page_size, PROT_READ | PROT_WRITE,
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+ MAP_PRIVATE | MAP_ANON, -1, 0);
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+ if (large_buf == MAP_FAILED)
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+ {
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+ puts ("Failed to allocat large_buf, skipping do_test1");
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+ return;
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+ }
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+
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+ if (mprotect (large_buf + size, page_size, PROT_NONE))
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+ error (EXIT_FAILURE, errno, "mprotect failed");
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+
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+ size_t arrary_size = size / sizeof (uint32_t);
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+ uint32_t *dest = large_buf;
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+ uint32_t *src = large_buf + size + page_size;
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+ size_t i;
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+
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+ for (i = 0; i < arrary_size; i++)
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+ src[i] = (uint32_t) i;
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+
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+ FOR_EACH_IMPL (impl, 0)
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+ {
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+ memset (dest, -1, size);
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+ CALL (impl, (char *) dest, (char *) src, size);
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+ for (i = 0; i < arrary_size; i++)
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+ if (dest[i] != src[i])
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+ {
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+ error (0, 0,
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+ "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"",
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+ impl->name, dest, src, i);
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+ ret = 1;
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+ break;
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+ }
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+ }
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+
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+ munmap ((void *) dest, size);
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+ munmap ((void *) src, size);
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+}
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+
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int
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test_main (void)
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{
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@@ -247,6 +291,9 @@ test_main (void)
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do_test (0, 0, getpagesize ());
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do_random_tests ();
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+
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+ do_test1 ();
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+
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return ret;
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}
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