;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021, 2022 Olivier Dion <olivier.dion@polymtl.ca>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages instrumentation)
  #:use-module (gnu packages base)
  #:use-module (gnu packages bash)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages commencement)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages datastructures)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages elf)
  #:use-module (gnu packages engineering)
  #:use-module (gnu packages file)
  #:use-module (gnu packages flex)
  #:use-module (gnu packages gawk)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages guile)
  #:use-module (gnu packages haskell-xyz)
  #:use-module (gnu packages libunwind)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages llvm)
  #:use-module (gnu packages lua)
  #:use-module (gnu packages man)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages popt)
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages sphinx)
  #:use-module (gnu packages swig)
  #:use-module (gnu packages tbb)
  #:use-module (gnu packages xml)
  #:use-module (guix platform)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system copy)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system linux-module)
  #:use-module (guix download)
  #:use-module (guix gexp)
  #:use-module (guix git-download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (srfi srfi-26)
  #:use-module (guix utils))

(define-public babeltrace
  (package
    (name "babeltrace")
    (version "2.0.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://www.efficios.com/files/babeltrace/babeltrace2-"
                                  version ".tar.bz2"))
              (sha256
               (base32 "1jlv925pr7hykc48mdvbmqm4ipy1r11xwzapa6fdpdfshmk12kvp"))))

    (build-system gnu-build-system)

    (arguments
     `(#:tests? #f  ; FIXME - When Python's bindings are enabled, tests do not
                    ; pass.
       #:make-flags
       ,#~(list (string-append "LDFLAGS=-Wl,-rpath=" #$output "/lib"))
       #:configure-flags
       '("--enable-debug-info"
         "--enable-man-pages"
         "--enable-python-bindings"
         "--enable-python-plugins")
       #:phases
       (modify-phases %standard-phases
         ;; These are recommended in the project's README for a development
         ;; build configuration.
         (add-before 'configure 'set-environment-variables
           (lambda _
             (setenv "BABELTRACE_DEV_MODE" "1")
             (setenv "BABELTRACE_MINIMAL_LOG_LEVEL" "TRACE"))))))
    (inputs
     (list glib))
    ;; NOTE - elfutils is used for the LTTng debug information filter
    ;; component class.  This can be moved to `native-inputs` if
    ;; `--enable-debug-info` is replaced by `--disable-debug-info` in
    ;; `#:configure-flags`.
    (propagated-inputs
     (list elfutils))
    ;; NOTE - python-3 is set here for generating the bindings.  Users need to
    ;; install python-3 in their profile in order to use these bindings.
    (native-inputs
     (list asciidoc
           bison
           flex
           pkg-config
           python-3
           python-sphinx
           swig
           xmltoman))
    (home-page "https://babeltrace.org/")
    (synopsis "Trace manipulation toolkit")
    (description "Babeltrace 2 is a framework for viewing, converting,
transforming, and analyzing traces.  It is also the reference parser
implementation of the Common Trace Format (CTF), produced by tools such as
LTTng and barectf.  This package provides a library with a C API, Python 3
bindings, and the command-line tool @command{babeltrace2}.")
    (license license:expat)))

(define-public dyninst
  (package
    (name "dyninst")
    ;; Newer versions are not promoted on main home page.
    ;; Upgrade to 12.0.1 if anyone require a newer version.
    (version "10.2.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/dyninst/dyninst")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32 "1m04pg824rqx647wvk9xl33ri8i6mm0vmrz9924li25dxbr4zqd5"))))

    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f
       ;; STERILE_BUILD: Do not download/build third-party dependencies from
       ;; source.
       #:configure-flags
       (list "-DSTERILE_BUILD=ON")
       ;; NOTE: dyninst needs to search for shared libraries that are linked
       ;; against the instrumented binary in order to rebuild the entire
       ;; program.  For this purpose, one can use LD_LIBRARY_PATH or
       ;; DYNISNT_REWRITER_PATHS environment variables to add paths for dyinst
       ;; to search.  However, dyninst also tries to be smart by executing
       ;; ldconfig, which is not portable.  If ldconfig is not available on
       ;; the system, dyinst wrongly assumes that the shared libraries can not
       ;; be found, even though it can.  This bad logic is still there with
       ;; newer versions of dyinst.  Thus, this substitution makes the bad
       ;; code path unreachable.
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch-bad-logic
           (lambda _
             (substitute* "dyninstAPI/src/linux.C"
               (("if\\(\\!fgets\\(buffer, 512, ldconfig\\)\\)")
                "fgets(buffer, 512, ldconfig); if (false)")))))))
    (propagated-inputs
     (list elfutils boost tbb-2020))
    (home-page "https://dyninst.org/")
    (synopsis "Dynamic instrumentation")
    (description "Dyninst is a collection of libraries for instrumenting,
analyzing and editing binaries.  It can attach to an existing program or
create a new one out of an ELF file for analysis or modification.  It come
with a handful of C++ libraries.")
    (license license:lgpl2.1+)))

(define-public flamegraph
  ;; No new version since 2019, but there's still some new important commits.
  (let ((commit "810687f180f3c4929b5d965f54817a5218c9d89b")
        (revision "1"))
    (package
      (name "flamegraph")
      (version (git-version "1.0" revision commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brendangregg/FlameGraph")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "1lg02mxzdsm9szn4vcmx76c1bw9gqmxqk8n6v63v03036sc83s22"))))
      (build-system copy-build-system)
      (arguments
       `(#:install-plan
         ',(map (cut list <> "bin/")
                '("flamegraph.pl"
                  "stackcollapse.pl"
                  "stackcollapse-perf.pl"
                  "stackcollapse-pmc.pl"
                  "stackcollapse-stap.pl"
                  "stackcollapse-instruments.pl"
                  "stackcollapse-vtune.pl"
                  "stackcollapse-jstack.pl"
                  "stackcollapse-gdb.pl"
                  "stackcollapse-go.pl"
                  "stackcollapse-vsprof.pl"
                  "stackcollapse-wcp.pl"))))
      (inputs (list perl))
      (home-page "http://www.brendangregg.com/flamegraphs.html")
      (synopsis "Stack trace visualizer")
      (description "Flamegraph is a collection of scripts that generate
interactive SVGs out of traces genated from various tracing tools.  It comes
with the script @command{flamegraph.pl} and many stackcollapse scripts.")
      (license license:cddl1.0))))

(define-public libpatch
  (package
    (name "libpatch")
    (version "1.0.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://git.sr.ht/~old/libpatch")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1sx1sichnnqfi84z37gd04h41vpr8i2vg6yg0jkqxlrv3dys489a"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list
        (string-append
         "--target="
         ,(platform-linux-architecture
           (lookup-platform-by-target-or-system
            (or
             (%current-target-system)
             (%current-system))))))))
    ;;; Add lttng-ust to the inputs if you want tracepoints within libpatch
    ;;; for debugging.
    (inputs
     (list capstone
           elfutils
           libunwind
           liburcu))
    (native-inputs
     (list coreutils
           ;; test-ftrace.scm
           (list coreutils "debug")
           (list guile-3.0 "debug")
           (list gnu-make "debug")

           ;; For eu-nm in test-ftrace.scm.
           (list elfutils "bin")

           guile-3.0
           gnu-make
           pkg-config
           ;; zlib is required by libdw.  This can be removed if zlib is put
           ;; as a propagated-input of elfutils.
           zlib))
    (synopsis "Dynamic binary patcher")
    (description
     "libpatch is a lightweight C library that can be used by tracers,
debuggers and other tools for insertion of probes in a program at runtime.  It
has many strategies to minimize probe overhead and maximize possible
coverage.")
    (home-page "https://git.sr.ht/~old/libpatch")
    (license (list license:lgpl2.1 license:expat license:gpl3+))
    ;; Libpatch only supports instrumentation for x86_64 right now.  Augment
    ;; that list in further version.
    (supported-systems (list "x86_64-linux"))))

(define-public lttng-modules
  (package
    (name "lttng-modules")
    (version "2.13.7")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://lttng.org/files/lttng-modules/"
                                  "lttng-modules-" version ".tar.bz2"))
              (sha256
               (base32
                "0d5jj8227kspmbpwsv691z4szzwhmzjzw61rvv5n0cchyyfng6as"))))
    (build-system linux-module-build-system)
    (arguments
     `(#:tests? #f ; no tests
       #:make-flags (list "CONFIG_LTTNG=m"
                          "CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m")))
    (home-page "https://lttng.org/")
    (synopsis "LTTng kernel modules for the LTTng tracer toolset")
    (description
     "LTTng kernel modules are Linux kernel modules which make
LTTng kernel tracing possible.  They include essential control modules and
many probes which instrument numerous interesting parts of Linux.")
    (license (list license:lgpl2.1 license:gpl2 license:expat))))

(define-public lttng-ust
  (package
    (name "lttng-ust")
    (version "2.13.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://lttng.org/files/lttng-ust/"
                                  "lttng-ust-" version ".tar.bz2"))
              (sha256
               (base32
                "165kz3zsklynkxdkcbkwhw7cccdgmgmld35h1cf9hvn5bpn853v9"))))
    (build-system gnu-build-system)
    (inputs
     (list numactl))
    (propagated-inputs
     (list liburcu))          ;headers of liburcu are used by headers of lttng
    (native-inputs
     (list python-3 pkg-config))
    (home-page "https://lttng.org/")
    (synopsis "LTTng userspace tracer libraries")
    (description "The user space tracing library, liblttng-ust, is the LTTng
user space tracer.  It receives commands from a session daemon, for example to
enable and disable specific instrumentation points, and writes event records
to ring buffers shared with a consumer daemon.")
    (license (list license:lgpl2.1 license:expat))))

(define-public lttng-tools
  (package
    (name "lttng-tools")
    (version "2.13.9")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://lttng.org/files/lttng-tools/"
                                  "lttng-tools-" version ".tar.bz2"))
              (sha256
               (base32
                "0dzk13d0hdzll8hk9qmj5lipmfa2h8zkl801dchp1kq8nsaxr54d"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags '("--enable-python-bindings")
       ;; FIXME - Tests are disabled for now because one test hangs
       ;; indefinetely.  Also, parallel testing is not possible because of how
       ;; the lttng-daemon handles sessions.  Thus, keep parallel testing
       ;; disabled even after tests are enabled!
       #:tests? #f
       #:parallel-tests? #f
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'set-environment-variables
           (lambda _
             (setenv "HOME" "/tmp")
             (setenv "LTTNG_HOME" "/tmp")))
         ;; We don't put (which "man") here because LTTng uses execlp.
         (add-after 'unpack 'patch-default-man-path
           (lambda _
             (substitute* "src/common/defaults.h"
               (("/usr/bin/man") "man")))))))
    ;; NOTE - Users have to install python-3 in their profile to use the
    ;; bindings.  We don't put it in the inputs, because the rest of the tools
    ;; can work without it.
    (inputs
     (list liburcu popt numactl))
    (propagated-inputs
     (list kmod module-init-tools))
    (native-inputs
     (list pkg-config
           perl
           libpfm4
           python-3
           swig
           procps
           which
           flex
           bison
           asciidoc
           libxml2
           lttng-ust))
    (home-page "https://lttng.org/")
    (synopsis "LTTng userspace tracer libraries")
    (description "The lttng-tools project provides a session
daemon @code{lttng-sessiond} that acts as a tracing registry, the @command{lttng} command
line for tracing control, a @code{lttng-ctl} library for tracing control and a
@code{lttng-relayd} for network streaming.")
    (license (list  license:gpl2 license:lgpl2.1))))

(define-public perf-tools
  (package
    (name "perf-tools")
    (version "1.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/brendangregg/perf-tools")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32 "1ab735idi0h62yvhzd7822jj3555vygixv4xjrfrdvi8d2hhz6qn"))))
    (build-system copy-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch-file-names
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* '("execsnoop" "killsnoop" "kernel/funcslower")
               (("/usr/bin/gawk")
                (search-input-file inputs "/bin/awk")))
             (substitute* "execsnoop"
               (("/usr/bin/getconf")
                (search-input-file inputs "/bin/getconf"))))))
       #:install-plan
       ',(append
          (map (cut list <> "bin/")
               '("disk/bitesize"
                 "fs/cachestat"
                 "execsnoop"
                 "kernel/funccount"
                 "kernel/funcgraph"
                 "kernel/funcslower"
                 "kernel/functrace"
                 "iolatency"
                 "iosnoop"
                 "killsnoop"
                 "kernel/kprobe"
                 "opensnoop"
                 "misc/perf-stat-hist"
                 "tools/reset-ftrace"
                 "syscount"
                 "net/tcpretrans"
                 "system/tpoint"
                 "user/uprobe"))
          '(("man/man8/" "share/man/man8")))))
    (propagated-inputs
     (list
      bash
      coreutils                         ; cat + rm
      gawk
      file
      perf
      perl
      procps                            ; sysctl
      which))
    (home-page "https://github.com/brendangregg/perf-tools")
    (synopsis "Performance analysis tools")
    (description "Perf-tools is a collection of scripts for performance
analysis and instrumentation based on Linux perf_events (aka perf) and
ftrace.")
    (license (list license:gpl2))))

(define-public uftrace
  (package
    (name "uftrace")
    (version "0.11")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/namhyung/uftrace")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32 "0gk0hv3rnf5czvazz1prg21rf9qlniz42g5b389n8a29hqj4q6xr"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list
        (string-append "CC=" ,(cc-for-target)))
       ;; runtest hang at some point -- probably dues to
       ;; failed socket connection -- but we want to keep the
       ;; unit tests.  Change the target to "test" when fixed.
       #:test-target "unittest"
       #:phases
       (modify-phases %standard-phases
         (replace 'configure
           (lambda* (#:key outputs target #:allow-other-keys)
             (let ((arch ,(platform-linux-architecture
                           (lookup-platform-by-target-or-system
                            (or (%current-target-system)
                                (%current-system))))))
               (setenv "ARCH"
                       (cond
                        ((string=? arch "arm64") "aarch64")
                        (else arch)))
               (when target
                 (setenv "CROSS_COMPILE" (string-append target "-"))))
             (setenv "SHELL" (which "sh"))
             (invoke "./configure"
                     (string-append "--prefix="
                                    (assoc-ref outputs "out"))))))))
    (inputs
     (list capstone
           elfutils
           libunwind
           ncurses))
    (native-inputs
     (list luajit
           pandoc
           pkg-config
           python-wrapper))
    (home-page "https://github.com/namhyung/uftrace")
    (synopsis "Function graph tracer for C/C++/Rust")
    (description "uftrace is a tool for tracing and analyzing the execution of
programs written in C/C++.  It is heavily inspired by the ftrace framework of
the Linux kernel, while supporting userspace programs.  It supports various
kind of commands and filters to help analysis of the program execution and
performance.  It provides the command @command{uftrace}.  User that want to do
scripting need to install python-3 or luajit in their profile.")
    (license license:gpl2)))