diff options
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | string/test-strncpy.c | 59 | ||||
| -rw-r--r-- | sysdeps/ia64/strncpy.S | 6 |
3 files changed, 55 insertions, 18 deletions
@@ -1,3 +1,11 @@ +2002-12-07 Kenneth W. Chen <kenneth.w.chen@intel.com>. + + * sysdeps/ia64/strncpy.S (strncpy): Clear ar.ec. Fix .recovery4. + +2002-12-07 Jakub Jelinek <jakub@redhat.com> + + * string/test-strncpy.c (do_random_tests): Improve test coverage. + 2002-12-06 Ulrich Drepper <drepper@redhat.com> * test-skeleton.c (timeout_handler): Allow expected signal to be diff --git a/string/test-strncpy.c b/string/test-strncpy.c index 7820b61158..c30c9b040b 100644 --- a/string/test-strncpy.c +++ b/string/test-strncpy.c @@ -144,32 +144,57 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char) static void do_random_tests (void) { - size_t i, j, n, align1, align2, len, size; + size_t i, j, n, align1, align2, len, size, mode; unsigned char *p1 = buf1 + page_size - 512; unsigned char *p2 = buf2 + page_size - 512; unsigned char *res; for (n = 0; n < ITERATIONS; n++) { - align1 = random () & 31; - if (random () & 1) - align2 = random () & 31; - else - align2 = align1 + (random () & 24); - len = random () & 511; - j = align1; - if (align2 > j) - j = align2; - if (random () & 1) + mode = random (); + if (mode & 1) { - size = random () & 511; - if (size + align2 > 512) - size = 512 - align2 - (random() & 31); + size = random () & 255; + align1 = 512 - size - (random () & 15); + if (mode & 2) + align2 = align1 - (random () & 24); + else + align2 = align1 - (random () & 31); + if (mode & 4) + { + j = align1; + align1 = align2; + align2 = j; + } + if (mode & 8) + len = size - (random () & 31); + else + len = 512; + if (len >= 512) + len = random () & 511; } else - size = 512 - align2; - if (len + j >= 511) - len = 510 - j - (random () & 7); + { + align1 = random () & 31; + if (mode & 2) + align2 = random () & 31; + else + align2 = align1 + (random () & 24); + len = random () & 511; + j = align1; + if (align2 > j) + j = align2; + if (mode & 4) + { + size = random () & 511; + if (size + j > 512) + size = 512 - j - (random() & 31); + } + else + size = 512 - j; + if ((mode & 8) && len + j >= 512) + len = 512 - j - (random () & 7); + } j = len + align1 + 64; if (j > 512) j = 512; diff --git a/sysdeps/ia64/strncpy.S b/sysdeps/ia64/strncpy.S index a285f90bfc..4fe686165b 100644 --- a/sysdeps/ia64/strncpy.S +++ b/sysdeps/ia64/strncpy.S @@ -63,6 +63,8 @@ ENTRY(strncpy) mov saved_pr = pr // save the predicate registers .save ar.lc, saved_lc mov saved_lc = ar.lc // save the loop counter + mov ar.ec = 0 // ec is not guaranteed to + // be zero upon function entry .body cmp.geu p6, p5 = 24, in2 (p6) br.cond.spnt .short_len @@ -221,7 +223,9 @@ ENTRY(strncpy) ld8 r[MEMLAT] = [tmp] br.cond.sptk .back3 .recovery4: + cmp.eq p5, p6 = len, r0 add tmp = -MEMLAT * 8, src ;; - ld8 r[MEMLAT - 1] = [tmp] +(p6) ld8 r[MEMLAT - 1] = [tmp] +(p5) mov r[MEMLAT - 1] = r0 br.cond.sptk .back4 END(strncpy) |