f1f6ebc0ea
Currently there are some public headers that include 'sys/queue.h', which is not POSIX, but usually provided by the Linux/BSD system library. (Not in POSIX.1, POSIX.1-2001, or POSIX.1-2008. Present on the BSDs.) The file is missing on Windows. During the Windows build, DPDK uses a bundled copy, so building a DPDK library works fine. But when OVS or other applications use DPDK as a library, because some DPDK public headers include 'sys/queue.h', on Windows, it triggers an error due to no such file. One solution is to install the 'lib/eal/windows/include/sys/queue.h' into Windows environment, such as [1]. However, this means DPDK exports the functionalities of 'sys/queue.h' into the environment, which might cause symbols, macros, headers clashing with other applications. The patch fixes it by removing the "#include <sys/queue.h>" from DPDK public headers, so programs including DPDK headers don't depend on the system to provide 'sys/queue.h'. When these public headers use macros such as TAILQ_xxx, we replace it by the ones with RTE_ prefix. For Windows, we copy the definitions from <sys/queue.h> to rte_os.h in Windows EAL. Note that these RTE_ macros are compatible with <sys/queue.h>, both at the level of API (to use with <sys/queue.h> macros in C files) and ABI (to avoid breaking it). Additionally, the TAILQ_FOREACH_SAFE is not part of <sys/queue.h>, the patch replaces it with RTE_TAILQ_FOREACH_SAFE. [1] http://mails.dpdk.org/archives/dev/2021-August/216304.html Suggested-by: Nick Connolly <nick.connolly@mayadata.io> Suggested-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com> Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com> Acked-by: Narcisa Vasile <navasile@linux.microsoft.com> |
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| .ci | ||
| .github/workflows | ||
| app | ||
| buildtools | ||
| config | ||
| devtools | ||
| doc | ||
| drivers | ||
| examples | ||
| kernel | ||
| lib | ||
| license | ||
| usertools | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| ABI_VERSION | ||
| MAINTAINERS | ||
| Makefile | ||
| meson_options.txt | ||
| meson.build | ||
| README | ||
| VERSION | ||
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org