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| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | 2023-07-25 12:16:41 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-07-26 10:45:49 -0300 |
| commit | 784ae968113011ce832b1808d4d42369f5d2e320 (patch) | |
| tree | 71eeb7adf838ac6c472d955d2e63e6066ce66780 | |
| parent | dbc4b032dc5c4ef0c46e9de23c46b1698bad4412 (diff) | |
| download | glibc-784ae968113011ce832b1808d4d42369f5d2e320.tar.gz glibc-784ae968113011ce832b1808d4d42369f5d2e320.tar.xz glibc-784ae968113011ce832b1808d4d42369f5d2e320.zip | |
string: Fix tester build with fortify enable with gcc 6
When building with fortify enabled, GCC 6 issues an warning the fortify wrapper might overflow the destination buffer. However, GCC does not provide a specific flag to disable the warning (the failure is tied to -Werror). So to avoid disable all errors, only enable the check for GCC 7 or newer. Checked on i686-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
| -rw-r--r-- | string/tester.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/string/tester.c b/string/tester.c index da42c72141..f7d4bac5a8 100644 --- a/string/tester.c +++ b/string/tester.c @@ -385,8 +385,17 @@ test_strncat (void) (void) strcpy (one, "gh"); (void) strcpy (two, "ef"); + /* When building with fortify enabled, GCC 6 issues an warning the fortify + wrapper might overflow the destination buffer. However, GCC does not + provide a specific flag to disable the warning (the failure is tied to + -Werror). So to avoid disable all errors, only enable the check for + GCC 7 or newer. */ +#if __GNUC_PREREQ (7, 0) (void) strncat (one, two, 99); equal (one, "ghef", 5); /* Basic test encore. */ +#else + equal (one, "gh", 2); +#endif equal (two, "ef", 6); /* Stomped on source? */ (void) strcpy (one, ""); |