From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [dpdk-dev] [Bug 421] gcc 10.0.1 stringops-overflow warnings
Date: Tue, 24 Mar 2020 18:56:43 +0000 [thread overview]
Message-ID: <bug-421-3@http.bugs.dpdk.org/> (raw)
https://bugs.dpdk.org/show_bug.cgi?id=421
Bug ID: 421
Summary: gcc 10.0.1 stringops-overflow warnings
Product: DPDK
Version: 20.05
Hardware: All
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: core
Assignee: dev@dpdk.org
Reporter: kevuzaj@gmail.com
Target Milestone: ---
Created attachment 85
--> https://bugs.dpdk.org/attachment.cgi?id=85&action=edit
Log of gcc 10.0.1 stringop-overflow warnings
As well as the ones reported for crypto in Bug 394 there are many other
stringop-overflow warnings with gcc 10.0.1 which is the default with Fedora 32.
This is caused by the following documented change since GCC:
https://gcc.gnu.org/gcc-10/changes.html
Enhancements to existing warnings:
-Wstringop-overflow detects more out-of-bounds stores to member arrays
including zero-length arrays, dynamically allocated objects and variable length
arrays, as well as more instances of reads of unterminated character arrays by
string built-in functions. The warning also detects out-of-bounds accesses by
calls to user-defined functions declared with the new attribute access.
The following files trigger have these warnings. Full log of warnings attached.
../drivers/crypto/caam_jr/caam_jr_pvt.h
../drivers/crypto/ccp/ccp_crypto.h
../drivers/crypto/dpaa_sec/dpaa_sec.h
../drivers/crypto/virtio/virtio_cryptodev.h
../drivers/net/enic/base/vnic_dev.c
../drivers/net/iavf/../../common/iavf/virtchnl.h
../drivers/net/ice/base/ice_adminq_cmd.h
../drivers/net/mlx4/mlx4_rxtx.c
../drivers/net/qede/base/ecore_mcp.c
../lib/librte_cryptodev/rte_cryptodev.h
../lib/librte_pipeline/rte_table_action.c
Some of these are easy to spot as false positives because of dynamic memory
allocation. Others seem to be too but would need component maintainers to
confirm. Can add individual Bugs per component if needed.
Proposed solution is to add -Wno-stringop-overflow flag at top level.
--
You are receiving this mail because:
You are the assignee for the bug.
reply other threads:[~2020-03-24 18:56 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-421-3@http.bugs.dpdk.org/ \
--to=bugzilla@dpdk.org \
--cc=dev@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).