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UBUNTU: [Packaging] provide a wrapper module for python-perf

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BugLink: https://bugs.launchpad.net/bugs/2051560

Provide a virtual python module wrapper to load the actual versioned
python perf module, based on the running kernel version.

Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
This commit is contained in:
Andrea Righi
2024-03-22 07:54:42 +01:00
committed by Roxana Nicolescu
parent 48357b9b6d
commit 51c8aee421
3 changed files with 41 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
debian/rules.d/2-binary-arch.mk
Vendored
+2 -1
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@@ -703,7 +703,8 @@ ifeq ($(do_tools_perf_jvmti),true)
install -m755 $(builddirpa)/tools/perf/libperf-jvmti.so $(toolspkgdir)/usr/lib/$(src_pkg_name)-tools-$(abi_release)
endif
ifeq ($(do_tools_perf_python),true)
install -m755 $(builddirpa)/tools/perf/python/perf*.so $(toolspkgdir)/usr/lib/python3/dist-packages
install -d $(toolspkgdir)/usr/lib/python3/dist-packages/$(src_pkg_name)-tools-$(abi_release)
install -m755 $(builddirpa)/tools/perf/python/perf*.so $(toolspkgdir)/usr/lib/python3/dist-packages/$(src_pkg_name)-tools-$(abi_release)
endif
endif
ifeq ($(do_tools_bpftool),true)
debian/rules.d/3-binary-indep.mk
Vendored
+7
View File
@@ -55,6 +55,7 @@ install-tools: toolspkg = $(tools_common_pkg_name)
install-tools: toolsbin = $(CURDIR)/debian/$(toolspkg)/usr/bin
install-tools: toolssbin = $(CURDIR)/debian/$(toolspkg)/usr/sbin
install-tools: toolsman = $(CURDIR)/debian/$(toolspkg)/usr/share/man
install-tools: toolspython = $(CURDIR)/debian/$(toolspkg)/usr/lib/python3/dist-packages
install-tools: toolsbashcomp = $(CURDIR)/debian/$(toolspkg)/usr/share/bash-completion/completions
install-tools: hosttoolspkg = $(hosttools_pkg_name)
install-tools: hosttoolsbin = $(CURDIR)/debian/$(hosttoolspkg)/usr/bin
@@ -79,6 +80,7 @@ ifeq ($(do_tools_common),true)
install -d $(toolsman)/man1
install -d $(toolsman)/man8
install -d $(toolsbashcomp)
install -d $(toolspython)
install -m755 debian/tools/generic $(toolsbin)/usbip
install -m755 debian/tools/generic $(toolsbin)/usbipd
@@ -106,6 +108,11 @@ ifeq ($(do_tools_common),true)
install -m644 $(CURDIR)/tools/power/x86/x86_energy_perf_policy/*.8 $(toolsman)/man8
install -m644 $(CURDIR)/tools/power/x86/turbostat/*.8 $(toolsman)/man8
ifeq ($(do_tools_perf_python),true)
# Python wrapper module for python-perf
install -d $(toolspython)/perf
install -m755 debian/tools/python-perf.py $(toolspython)/perf/__init__.py
endif
ifeq ($(do_cloud_tools),true)
ifeq ($(do_tools_hyperv),true)
install -d $(cloudsbin)
debian/tools/python-perf.py
Vendored
+32
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@@ -0,0 +1,32 @@
import os
import importlib.util
from glob import glob
class KernelNotFoundError(Exception):
def __init__(self):
kernel_version = os.uname().release
super().__init__(f"WARNING: python perf module not found for kernel {kernel_version}\n\n"
f"You may need to install the following packages for this specific kernel:\n"
f" linux-tools-{kernel_version}-generic\n"
f"You may also want to install of the following package to keep up to date:\n"
f" linux-tools-generic")
# Extract ABI number from kernel version
def _get_abi_version():
_kernel_version = os.uname().release
_parts = _kernel_version.split("-")
return "-".join(_parts[:-1])
# Load the actual python-perf module for the running kernel
_abi_version = _get_abi_version()
_perf_dir = f"/usr/lib/python3/dist-packages/linux-tools-{_abi_version}"
if not os.path.exists(_perf_dir):
raise KernelNotFoundError()
_perf_lib = glob(os.path.join(_perf_dir, "*.so"))[-1]
_spec = importlib.util.spec_from_file_location("perf", _perf_lib)
_perf = importlib.util.module_from_spec(_spec)
_spec.loader.exec_module(_perf)
# Expose the 'perf' module.
__all__ = ['perf']