Haskell SIG meeting 2020-08-04 minutes
by Jens-Ulrik Petersen
Minutes:
https://meetbot.fedoraproject.org/fedora-meeting/2020-08-04/haskell-sig.2...
Minutes (text):
https://meetbot.fedoraproject.org/fedora-meeting/2020-08-04/haskell-sig.2...
Log:
https://meetbot.fedoraproject.org/fedora-meeting/2020-08-04/haskell-sig.2...
3 years, 8 months
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ghc-cryptonite LTO failure on s390x
by Elliott Sales de Andrade
Hi,
The build for ghc-cryptonite failed in the mass rebuild [1] and a
later rebuild by me [2], but only on s390x. The failure appears to be
LTO related. This doesn't appear to affect many other Haskell
packages. (I've found one seemingly-related failure in
ghc-haskell-src-exts [3].) Since it's Haskell, I'm using the standard
macros that should pass consistent flags, etc., so I'm not sure what
more information I can provide.
What happens is that ld.gold warns about mixed LTO/non-LTO:
[ 1 of 131] Compiling Crypto.Cipher.DES.Primitive (
Crypto/Cipher/DES/Primitive.hs,
dist/build/Crypto/Cipher/DES/Primitive.p_o )
/usr/bin/ld.gold: warning: incremental linking of LTO and non-LTO
objects; using -flinker-output=nolto-rel which will bypass whole
program optimization
and then errors out because of many LTO mismatches like:
/tmp/ghc794663_0/ghc_19.c:11:19: error:
warning: type of
‘cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc’
does not match original declaration [-Wlto-type-mismatch]
11 | extern CostCentre
cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc[];
| ^
|
11 | extern CostCentre
cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc[];
| ^
/tmp/ghc794663_0/ghc_18.hc:44:9: error:
note: type ‘StgWord’ should match type ‘struct CostCentre’
44 | StgWord
cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc[]__attribute__((aligned(8)))=
{
| ^
|
44 | StgWord cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc[]__attribute__((aligned(8)))=
{
| ^
/tmp/ghc794663_0/ghc_18.hc:44:9: error:
note: ‘cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc’
was previously declared here
|
44 | StgWord cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc[]__attribute__((aligned(8)))=
{
| ^
/tmp/ghc794663_0/ghc_18.hc:44:9: error:
note: code may be misoptimized unless ‘-fno-strict-aliasing’ is used
|
44 | StgWord cryptonitezm0zi26zmIKFu0XykBrR53imeIPM2Uw_CryptoziCipherziDESziPrimitive_CAFs_cc[]__attribute__((aligned(8)))=
{
| ^
followed by inlining failures:
/usr/include/bits/string_fortified.h: In function ‘fill_segment’:
/usr/include/bits/string_fortified.h:59:1: error:
error: inlining failed in call to ‘always_inline’ ‘memset’:
function body can be overwritten at link time
59 | __NTH (memset (void *__dest, int __ch, size_t __len))
| ^
|
59 | __NTH (memset (void *__dest, int __ch, size_t __len))
| ^
[1] https://koji.fedoraproject.org/koji/taskinfo?taskID=47957210
[2] https://koji.fedoraproject.org/koji/taskinfo?taskID=48408236
[3] https://koji.fedoraproject.org/koji/taskinfo?taskID=48322376
--
Elliott
3 years, 8 months
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