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soring: build errors with LTO

DPDK/core Bug 1864 [email protected] 1 participant 2 messages Dec 31, 2025 – Jan 19

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http://bugs.dpdk.org/show_bug.cgi?id=1864

            Bug ID: 1864
           Summary: soring: build errors with LTO
           Product: DPDK
           Version: 25.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: core
          Assignee: [email protected]
          Reporter: [email protected]

Target Milestone: ---

Doing release build type with LTO causes more inlining which detects more errors.

In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 128 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 160 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 192 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 224 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 256 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 288 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 320 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 352 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 384 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 416 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 448 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];
| ^
In function ‘__rte_ring_dequeue_elems_128’,
inlined from ‘__rte_ring_do_dequeue_elems’ at
../lib/ring/rte_ring_elem_pvt.h:279:3,
inlined from ‘soring_dequeue’ at ../lib/ring/soring.c:315:3, inlined from ‘rte_soring_dequeue_bulk’ at ../lib/ring/soring.c:552:9, inlined from ‘test_soring_stages’ at ../app/test/test_soring.c:181:14:
../lib/ring/rte_ring_elem_pvt.h:250:25: warning: writing 32 bytes into a region of size 0 [-Wstringop-overflow=]
250 | memcpy((obj + i), (const void *)(ring + idx),
32);
| ^
../app/test/test_soring.c: In function ‘test_soring_stages’:
../app/test/test_soring.c:157:18: note: at offset 480 into destination object ‘dequeued_objs’ of size 128
157 | uint32_t dequeued_objs[32];

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author
#1 lore raw

http://bugs.dpdk.org/show_bug.cgi?id=1864

Stephen Hemminger ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Stephen Hemminger ([email protected]) --- Same LTO build issue

*** This bug has been marked as a duplicate of bug 1727 ***

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