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: kevu...@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.