diff options
Diffstat (limited to 'string/test-memmove.c')
| -rw-r--r-- | string/test-memmove.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/string/test-memmove.c b/string/test-memmove.c index 51f79f6eb4..60f77f825b 100644 --- a/string/test-memmove.c +++ b/string/test-memmove.c @@ -24,6 +24,7 @@ # define TEST_NAME "memmove" #endif #include "test-string.h" +#include <support/test-driver.h> char *simple_memmove (char *, const char *, size_t); @@ -245,6 +246,60 @@ do_random_tests (void) } } +static void +do_test2 (void) +{ + size_t size = 0x20000000; + uint32_t * large_buf; + + large_buf = mmap ((void*) 0x70000000, size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0); + + if (large_buf == MAP_FAILED) + error (EXIT_UNSUPPORTED, errno, "Large mmap failed"); + + if ((uintptr_t) large_buf > 0x80000000 - 128 + || 0x80000000 - (uintptr_t) large_buf > 0x20000000) + { + error (0, 0, "Large mmap allocated improperly"); + ret = EXIT_UNSUPPORTED; + munmap ((void *) large_buf, size); + return; + } + + size_t bytes_move = 0x80000000 - (uintptr_t) large_buf; + size_t arr_size = bytes_move / sizeof (uint32_t); + size_t i; + + FOR_EACH_IMPL (impl, 0) + { + for (i = 0; i < arr_size; i++) + large_buf[i] = (uint32_t) i; + + uint32_t * dst = &large_buf[33]; + +#ifdef TEST_BCOPY + CALL (impl, (char *) large_buf, (char *) dst, bytes_move); +#else + CALL (impl, (char *) dst, (char *) large_buf, bytes_move); +#endif + + for (i = 0; i < arr_size; i++) + { + if (dst[i] != (uint32_t) i) + { + error (0, 0, + "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"", + impl->name, dst, large_buf, i); + ret = 1; + break; + } + } + } + + munmap ((void *) large_buf, size); +} + int test_main (void) { @@ -284,6 +339,9 @@ test_main (void) } do_random_tests (); + + do_test2 (); + return ret; } |