[Pkg-opencl-devel] Bug#1015587: pocl: ftbfs with LTO (link time optimization) enabled

[Matthias Klose]

Package: src:pocl
Version: 1.8-3
Severity: minor
Tags: sid bookworm
User: debian-gcc at lists.debian.org
Usertags: ftbfs-lto

This package currently fails to build (at least on the amd64
architecture) with link time optimizations enabled.  For a background
for LTO please see

https://wiki.debian.org/ToolChain/LTO

The goal is to enable this optimization by default in an upcoming
Debian release in dpkg-buildflags for 64bit architectures.  The goal
is to get this package to build with link time optimizations, or to
explicitly disable link time optimizations for this package build.

To reproduce the build failure, enable the lto optimization in
testing/unstable by adding "optimize=+lto" to DEB_BUILD_MAINT_OPTIONS
in the debian/rules file, or if this macro is unset, just set it:

export DEB_BUILD_MAINT_OPTIONS = optimize=+lto

Please try to fix the build with lto enabled, fixing the packaging or
forwarding the issue upstream. If the issue cannot be fixed,
explicitly disallow building the package with lto by adding to your
rules file:

export DEB_BUILD_MAINT_OPTIONS = optimize=-lto

or adding that string to your existing setting of DEB_BUILD_MAINT_OPTIONS.

The full build log can be found at:
http://qa-logs.debian.net/2022/06/09/dpkglto/pocl_1.8-3_unstable_dpkglto.log
The last lines of the build log are at the end of this report.

[...]
   dh_lintian
   dh_perl
   dh_link
   dh_strip_nondeterminism
   dh_compress
   dh_fixperms
   dh_missing
   dh_dwz -a
dwz: debian/libpocl2/usr/lib/x86_64-linux-gnu/libpocl.so.2.8.0: DWARF compression not beneficial - old size 22243858 new size 22300398
   dh_strip -a
   debian/rules override_dh_makeshlibs
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_makeshlibs
dpkg-gensymbols: warning: debian/libpocl2/DEBIAN/symbols doesn't match completely debian/libpocl2.symbols
--- debian/libpocl2.symbols (libpocl2_1.8-3_amd64)
+++ dpkg-gensymbols0k8SIK	2022-06-10 08:47:42.296586386 +0000
@@ -17,26 +17,26 @@
  _Z21getModuleBoolMetadataRKN4llvm6ModuleEPKcRb at Base 1.8
  _Z23getModuleStringMetadataRKN4llvm6ModuleEPKcRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE at Base 1.8
  _ZN4pocl23eraseFunctionAndCallersEPN4llvm8FunctionE at Base 1.8-3~visibility
-#MISSING: 1.8# (optional=templinst)_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12emplace_backIJS5_EEEvDpOT_ at Base 0.11
-#MISSING: 1.8# (optional=templinst)_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE17_M_realloc_insertIJRKS5_EEEvN9__gnu_cxx17__normal_iteratorIPS5_S7_EEDpOT_ at Base 0.13-9~llvm3.8+gcc7
-#MISSING: 1.8# (optional=templinst)_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE17_M_realloc_insertIJS5_EEEvN9__gnu_cxx17__normal_iteratorIPS5_S7_EEDpOT_ at Base 0.13-9~llvm3.8+gcc7
-#MISSING: 1.8# (optional=templinst)_ZNSt6vectorIPKcSaIS1_EE17_M_realloc_insertIJS1_EEEvN9__gnu_cxx17__normal_iteratorIPS1_S3_EEDpOT_ at Base 0.13-9~llvm3.8+gcc7
-#MISSING: 1.8# (optional=templinst|subst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_replaceE{size_t}{size_t}PKc{size_t}@Base 1.6-2~hardening
+#MISSING: 1.8-3# (optional=templinst)_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE12emplace_backIJS5_EEEvDpOT_ at Base 0.11
+#MISSING: 1.8-3# (optional=templinst)_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE17_M_realloc_insertIJRKS5_EEEvN9__gnu_cxx17__normal_iteratorIPS5_S7_EEDpOT_ at Base 0.13-9~llvm3.8+gcc7
+#MISSING: 1.8-3# (optional=templinst)_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE17_M_realloc_insertIJS5_EEEvN9__gnu_cxx17__normal_iteratorIPS5_S7_EEDpOT_ at Base 0.13-9~llvm3.8+gcc7
+#MISSING: 1.8-3# (optional=templinst)_ZNSt6vectorIPKcSaIS1_EE17_M_realloc_insertIJS1_EEEvN9__gnu_cxx17__normal_iteratorIPS1_S3_EEDpOT_ at Base 0.13-9~llvm3.8+gcc7
+#MISSING: 1.8-3# (optional=templinst|subst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_replaceE{size_t}{size_t}PKc{size_t}@Base 1.6-2~hardening
 #MISSING: 1.8# (optional=templinst|arch=mipsel)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_M_constructIPKcEEvT_S8_St20forward_iterator_tag at Base 1.1-6~llvm6.0+gcc8
-#MISSING: 1.8# (optional=templinst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4swapERS4_ at Base 1.6-2~hardening
-#MISSING: 1.8# (optional=templinst|subst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_appendEPKc{size_t}@Base 1.6-2~hardening
-#MISSING: 1.8# (optional=templinst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_assignERKS4_ at Base 1.6-2~hardening
-#MISSING: 1.8# (optional=templinst|subst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_mutateE{size_t}{size_t}PKc{size_t}@Base 1.6-2~hardening
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St9_IdentityIS5_ESt4lessIS5_ESaIS5_EE24_M_get_insert_unique_posERKS5_ at Base 1.0
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St9_IdentityIS5_ESt4lessIS5_ESaIS5_EE29_M_get_insert_hint_unique_posESt23_Rb_tree_const_iteratorIS5_ERKS5_ at Base 1.0
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St9_IdentityIS5_ESt4lessIS5_ESaIS5_EE8_M_eraseEPSt13_Rb_tree_nodeIS5_E at Base 1.0
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_S5_ESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE8_M_eraseEPSt13_Rb_tree_nodeIS8_E at Base 1.1-2~llvm5.0
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_S5_ESt10_Select1stIS8_ESt4lessIvESaIS8_EE8_M_eraseEPSt13_Rb_tree_nodeIS8_E at Base 1.7-3~llvm10
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_iESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE24_M_get_insert_unique_posERS7_ at Base 0.11
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_iESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE29_M_get_insert_hint_unique_posESt23_Rb_tree_const_iteratorIS8_ERS7_ at Base 0.11
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE24_M_get_insert_unique_posERS7_ at Base 1.0
-#MISSING: 1.8# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE29_M_get_insert_hint_unique_posESt23_Rb_tree_const_iteratorIS8_ERS7_ at Base 1.0
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+#MISSING: 1.8-3# (optional=templinst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4swapERS4_ at Base 1.6-2~hardening
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+#MISSING: 1.8-3# (optional=templinst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_assignERKS4_ at Base 1.6-2~hardening
+#MISSING: 1.8-3# (optional=templinst|subst)_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_mutateE{size_t}{size_t}PKc{size_t}@Base 1.6-2~hardening
+#MISSING: 1.8-3# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St9_IdentityIS5_ESt4lessIS5_ESaIS5_EE24_M_get_insert_unique_posERKS5_ at Base 1.0
+#MISSING: 1.8-3# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St9_IdentityIS5_ESt4lessIS5_ESaIS5_EE29_M_get_insert_hint_unique_posESt23_Rb_tree_const_iteratorIS5_ERKS5_ at Base 1.0
+#MISSING: 1.8-3# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES5_St9_IdentityIS5_ESt4lessIS5_ESaIS5_EE8_M_eraseEPSt13_Rb_tree_nodeIS5_E at Base 1.0
+#MISSING: 1.8-3# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_S5_ESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE8_M_eraseEPSt13_Rb_tree_nodeIS8_E at Base 1.1-2~llvm5.0
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+#MISSING: 1.8-3# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE24_M_get_insert_unique_posERS7_ at Base 1.0
+#MISSING: 1.8-3# (optional=templinst)_ZNSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_jESt10_Select1stIS8_ESt4lessIS5_ESaIS8_EE29_M_get_insert_hint_unique_posESt23_Rb_tree_const_iteratorIS8_ERS7_ at Base 1.0
+#MISSING: 1.8-3# (optional=templinst)_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_RKS8_ at Base 1.6-2~hardening
  (arch=armel riscv64)_ZTIN9__gnu_cxx7__mutexE at Base 1.4-5~llvm9
  (arch=armel riscv64)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE1EE at Base 0.10
  (arch=!armel !riscv64)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE at Base 0.10
+ test -f debian/stamp-failed-testsuite
+ echo ***** The testsuite has failed! *****
***** The testsuite has failed! *****
+ exit 1
make[1]: *** [debian/rules:114: delayed_check_dh_auto_test_result] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:51: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2