From cd27047dbee1eda0e8ed12300bc035636d89607b Mon Sep 17 00:00:00 2001 From: Nick Connolly Date: Mon, 26 Apr 2021 11:07:32 +0100 Subject: [PATCH] build: support drivers symlink on Windows The symlink-drivers-solibs.sh script was disabled as part of 'install' for Windows because there is no support for shell scripts. However, this means that driver related DLLs are not present in the installed 'libdir' directory. Add a python script to perform the install and use it for Windows if the version of meson supports using an external program with add_install_script (>= 0.55.0). On Windows, symbolic links are somewhat problematic since the SeCreateSymbolicLinkPrivilege is required to be able to create them. In addition, different cross-compilation environments handle symbolic links differently, e.g. WSL, Msys2, Cygwin. Rather than trying to distinguish these scenarios, the python script will perform a file copy for any Windows specific names. On Windows, the shared library outputs have different names depending upon which toolset has been used to build them. The script currently handles Clang and GCC. On Linux the functionality is unchanged, but could be replaced with the python script once the required minimum version of meson is >= 0.55.0. Cc: stable@dpdk.org Signed-off-by: Nick Connolly Tested-by: Narcisa Vasile Acked-by: Narcisa Vasile Reviewed-by: Bruce Richardson --- MAINTAINERS | 1 + buildtools/symlink-drivers-solibs.py | 49 ++++++++++++++++++++++++++++ config/meson.build | 4 +++ 3 files changed, 54 insertions(+) create mode 100644 buildtools/symlink-drivers-solibs.py diff --git a/MAINTAINERS b/MAINTAINERS index d5a6cee20b..a7eadba130 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -105,6 +105,7 @@ F: buildtools/call-sphinx-build.py F: buildtools/list-dir-globs.py F: buildtools/pkg-config/ F: buildtools/symlink-drivers-solibs.sh +F: buildtools/symlink-drivers-solibs.py F: devtools/test-meson-builds.sh F: devtools/check-meson.py diff --git a/buildtools/symlink-drivers-solibs.py b/buildtools/symlink-drivers-solibs.py new file mode 100644 index 0000000000..9c999508a9 --- /dev/null +++ b/buildtools/symlink-drivers-solibs.py @@ -0,0 +1,49 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2021 Intel Corporation + +import os +import sys +import glob +import shutil + +# post-install script for meson/ninja builds to symlink the PMDs stored in +# $libdir/dpdk/pmds-*/ to $libdir. This is needed as some PMDs depend on +# others, e.g. PCI device PMDs depending on the PCI bus driver. + +# parameters to script are paths relative to install prefix: +# 1. directory for installed regular libs e.g. lib64 +# 2. subdirectory of libdir where the PMDs are +# 3. directory for installed regular binaries e.g. bin + +os.chdir(os.environ['MESON_INSTALL_DESTDIR_PREFIX']) + +lib_dir = sys.argv[1] +pmd_subdir = sys.argv[2] +bin_dir = sys.argv[3] +pmd_dir = os.path.join(lib_dir, pmd_subdir) + +# copy Windows PMDs to avoid any issues with symlinks since the +# build could be a cross-compilation under WSL, Msys or Cygnus. +# the filenames are dependent upon the specific toolchain in use. + +def copy_pmd_files(pattern, to_dir): + for file in glob.glob(os.path.join(pmd_dir, pattern)): + to = os.path.join(to_dir, os.path.basename(file)) + shutil.copy2(file, to) + print(to + ' -> ' + file) + +copy_pmd_files('*rte_*.dll', bin_dir) +copy_pmd_files('*rte_*.pdb', bin_dir) +copy_pmd_files('*rte_*.lib', lib_dir) +copy_pmd_files('*rte_*.dll.a', lib_dir) + +# symlink shared objects + +os.chdir(lib_dir) +for file in glob.glob(os.path.join(pmd_subdir, 'librte_*.so*')): + to = os.path.basename(file) + if os.path.exists(to): + os.remove(to) + os.symlink(file, to) + print(to + ' -> ' + file) diff --git a/config/meson.build b/config/meson.build index 9f56fab1fe..e80421003b 100644 --- a/config/meson.build +++ b/config/meson.build @@ -59,6 +59,10 @@ eal_pmd_path = join_paths(get_option('prefix'), driver_install_path) if not is_windows meson.add_install_script('../buildtools/symlink-drivers-solibs.sh', get_option('libdir'), pmd_subdir_opt) +elif meson.version().version_compare('>=0.55.0') + # 0.55.0 is required to use external program with add_install_script + meson.add_install_script(py3, '../buildtools/symlink-drivers-solibs.py', + get_option('libdir'), pmd_subdir_opt, get_option('bindir')) endif # init disable/enable driver lists that will be populated in different places