[Bug 2021564] [NEW] libs3 ftbfs on ppc64el with -O3

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You have been subscribed to a public bug by Shengjing Zhu (zhsj):

src/util.c:367:13: error: ‘SHA1_transform’ reading 64 bytes from a region of size 63 [-Werror=stringop-overread]
  367 |             SHA1_transform(context->state, &(data[i]));
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/util.c:367:13: note: referencing argument 2 of type ‘const unsigned char[64]’
src/util.c: In function ‘HMAC_SHA1’:
src/util.c:276:13: note: in a call to function ‘SHA1_transform’
  276 | static void SHA1_transform(uint32_t state[5], const unsigned char buffer[64])
      |             ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors


-O3 triggers a -Werror=stringop-overread warning. But building the package with -O2 is just fine.

** Affects: libs3 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: ftbfs update-excuse
-- 
libs3 ftbfs on ppc64el with -O3
https://bugs.launchpad.net/bugs/2021564
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