When trying LTO (configure flag --enable-jvm-feature-link-time-opt=yes) on
Linux x86_64, gcc 11.3.0, we run into a lot of warnings and finally into this
error :
.. tons of free and malloc related warnings ...
inlined from 'pop_segment' at
src/hotspot/share/utilities/stack.inline.hpp:188:9,
inlined from 'pop' at src/hotspot/share/utilities/stack.inline.hpp:84:30,
inlined from 'pop_overflow' at
src/hotspot/share/gc/shared/taskqueue.inline.hpp:231:28,
inlined from 'trim_queue_to_threshold' at
src/hotspot/share/gc/g1/g1ParScanThreadState.cpp:328:37:
src/hotspot/share/runtime/os.cpp:666:3: warning: call to 'malloc' declared with
attribute warning: use os::malloc [-Wattribute-warning]
src/hotspot/share/runtime/os.cpp:666:3: warning: call to 'malloc' declared with
attribute warning: use os::malloc [-Wattribute-warning]
In function 'malloc',
inlined from 'malloc' at src/hotspot/share/runtime/os.cpp:637:0,
inlined from 'AllocateHeap' at
src/hotspot/share/memory/allocation.cpp:42:31,
inlined from 'new_entry' at
src/hotspot/share/nmt/mallocSiteTable.cpp:181:25,
inlined from 'lookup_or_add' at
src/hotspot/share/nmt/mallocSiteTable.cpp:122:48,
inlined from 'allocation_at' at
src/hotspot/share/nmt/mallocSiteTable.hpp:151:37,
inlined from 'record_malloc' at
src/hotspot/share/nmt/mallocTracker.cpp:179:35,
inlined from 'record_malloc' at src/hotspot/share/nmt/memTracker.hpp:81:42,
inlined from 'realloc' at src/hotspot/share/runtime/os.cpp:746:58,
inlined from 'ReallocateHeap' at
src/hotspot/share/memory/allocation.cpp:59:32,
inlined from 'grow' at src/hotspot/share/utilities/ostream.cpp:377:15,
inlined from 'write' at src/hotspot/share/utilities/ostream.cpp:400:11,
inlined from 'write' at src/hotspot/share/utilities/ostream.cpp:382:0,
inlined from 'put' at src/hotspot/share/utilities/ostream.cpp:212:8,
inlined from 'print_ascii_form' at src/hotspot/share/runtime/os.cpp:965:19,
inlined from 'print_hex_location' at
src/hotspot/share/runtime/os.cpp:1008:21,
inlined from 'print_hex_dump' at src/hotspot/share/runtime/os.cpp:1050:23,
inlined from 'print_hex_dump' at src/hotspot/share/runtime/os.hpp:869:19,
inlined from 'print_block_on_error' at
src/hotspot/share/nmt/mallocHeader.cpp:64:23,
inlined from 'resolve_checked_impl' at
src/hotspot/share/nmt/mallocHeader.inline.hpp:106:41,
inlined from 'resolve_checked' at
src/hotspot/share/nmt/mallocHeader.inline.hpp:113:66,
inlined from 'record_free_block' at
src/hotspot/share/nmt/mallocTracker.cpp:206:55,
inlined from 'record_free' at src/hotspot/share/nmt/memTracker.hpp:93:44,
inlined from 'free' at src/hotspot/share/runtime/os.cpp:787:54,
inlined from 'free' at src/hotspot/share/runtime/os.cpp:773:0,
inlined from 'FreeHeap' at src/hotspot/share/memory/allocation.cpp:68:11,
inlined from 'free' at src/hotspot/share/utilities/stack.inline.hpp:148:0,
inlined from 'pop_segment' at
src/hotspot/share/utilities/stack.inline.hpp:188:9,
inlined from 'pop' at src/hotspot/share/utilities/stack.inline.hpp:84:30,
inlined from 'pop_overflow' at
src/hotspot/share/gc/shared/taskqueue.inline.hpp:231:28,
inlined from 'trim_queue_to_threshold' at
src/hotspot/share/gc/g1/g1ParScanThreadState.cpp:328:37:
src/hotspot/share/runtime/os.cpp:666:3: warning: call to 'malloc' declared with
attribute warning: use os::malloc [-Wattribute-warning]
src/hotspot/share/runtime/os.cpp:666:3: warning: call to 'malloc' declared with
attribute warning: use os::malloc [-Wattribute-warning]
src/hotspot/share/runtime/os.cpp:666:3: warning: call to 'malloc' declared with
attribute warning: use os::malloc [-Wattribute-warning]
g++: fatal error: Killed signal terminated program lto1
compilation terminated.
make[4]: *** [/tmp/cc6nPei6.ltrans63.ltrans.o] Error 1
make[4]: *** Waiting for unfinished jobs....
Looks like the flattening attribute usage in
src/hotspot/share/gc/g1/g1ParScanThreadState.cpp causes the issues.
So it was discussed to remove the flattening attributes in this file but this
was not seen as a good idea. So better disable lto when building this special
file with gcc .
-------------
Commit messages:
- JDK-8343698
Changes: https://git.openjdk.org/jdk/pull/22069/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22069&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8343698
Stats: 6 lines in 2 files changed: 4 ins; 0 del; 2 mod
Patch: https://git.openjdk.org/jdk/pull/22069.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/22069/head:pull/22069
PR: https://git.openjdk.org/jdk/pull/22069
