src/patches/glibc-2.38/0022-string-Fix-tester-build-with-fortify-enable-with-gcc.patch

   1 From d94461bb86ba176b9390c0015bb612a528e22d95 Mon Sep 17 00:00:00 2001
   2 From: Mahesh Bodapati <bmahi496@linux.ibm.com>
   3 Date: Fri, 11 Aug 2023 10:38:25 -0500
   4 Subject: [PATCH 22/44] string: Fix tester build with fortify enable with gcc <
   5  12
   6
   7 When building with fortify enabled, GCC < 12 issues a warning on the
   8 fortify strncat wrapper might overflow the destination buffer (the
   9 failure is tied to -Werror).
  10
  11 Checked on ppc64 and x86_64.
  12 Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
  13
  14 (cherry picked from commit f1c7ed0859a45929136836341741c7cd70f428cb)
  15 ---
  16  string/tester.c | 11 ++++++++---
  17  1 file changed, 8 insertions(+), 3 deletions(-)
  18
  19 diff --git a/string/tester.c b/string/tester.c
  20 index f7d4bac5a8..824cf315ff 100644
  21 --- a/string/tester.c
  22 +++ b/string/tester.c
  23 @@ -34,6 +34,14 @@
  24  DIAG_IGNORE_NEEDS_COMMENT (8, "-Wstringop-truncation");
  25  #endif
  26
  27 +/* When building with fortify enabled, GCC < 12 issues a warning on the
  28 +   fortify strncat wrapper might overflow the destination buffer (the
  29 +   failure is tied to -Werror).
  30 +   Triggered by strncat fortify wrapper when it is enabled.  */
  31 +#if __GNUC_PREREQ (11, 0)
  32 +DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread");
  33 +#endif
  34 +
  35  #include <errno.h>
  36  #include <stdint.h>
  37  #include <stdio.h>
  38 @@ -52,9 +60,6 @@ DIAG_IGNORE_NEEDS_COMMENT (5.0, "-Wmemset-transposed-args");
  39  DIAG_IGNORE_NEEDS_COMMENT (9, "-Wrestrict");
  40  DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow=");
  41  #endif
  42 -#if __GNUC_PREREQ (11, 0)
  43 -DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread");
  44 -#endif
  45
  46
  47  #define        STREQ(a, b)     (strcmp((a), (b)) == 0)
  48 --
  49 2.39.2
  50