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<head>
<base href="https://bugs.dpdk.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - possible overrun bugs in soring found with LTO"
href="https://bugs.dpdk.org/show_bug.cgi?id=1726">1726</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>possible overrun bugs in soring found with LTO
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>other
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>stephen@networkplumber.org
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">Enabling LTO in build allows compiler to detect more bugs such as out of bounds
references inside libraries. Several warnings in soring
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];
|
</pre>
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