gnu/packages/debug.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2014, 2015, 2016, 2017, 2019 Eric Bavier <bavier@member.fsf.org>
   3 ;;; Copyright © 2016, 2017, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
   4 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
   5 ;;; Copyright © 2018, 2019 Rutger Helling <rhelling@mykolab.com>
   6 ;;; Copyright © 2019 Pkill -9 <pkill9@runbox.com>
   7 ;;;
   8 ;;; This file is part of GNU Guix.
   9 ;;;
  10 ;;; GNU Guix is free software; you can redistribute it and/or modify it
  11 ;;; under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 3 of the License, or (at
  13 ;;; your option) any later version.
  14 ;;;
  15 ;;; GNU Guix is distributed in the hope that it will be useful, but
  16 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19 ;;;
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 (define-module (gnu packages debug)
  24   #:use-module (guix packages)
  25   #:use-module ((guix licenses) #:prefix license:)
  26   #:use-module (guix download)
  27   #:use-module (guix git-download)
  28   #:use-module (guix utils)
  29   #:use-module (guix build-system gnu)
  30   #:use-module (guix build-system cmake)
  31   #:use-module (gnu packages)
  32   #:use-module (gnu packages attr)
  33   #:use-module (gnu packages autotools)
  34   #:use-module (gnu packages base)
  35   #:use-module (gnu packages bash)
  36   #:use-module (gnu packages bison)
  37   #:use-module (gnu packages code)
  38   #:use-module (gnu packages compression)
  39   #:use-module (gnu packages flex)
  40   #:use-module (gnu packages gdb)
  41   #:use-module (gnu packages glib)
  42   #:use-module (gnu packages gtk)
  43   #:use-module (gnu packages golang)
  44   #:use-module (gnu packages image)
  45   #:use-module (gnu packages linux)
  46   #:use-module (gnu packages llvm)
  47   #:use-module (gnu packages ncurses)
  48   #:use-module (gnu packages ninja)
  49   #:use-module (gnu packages perl)
  50   #:use-module (gnu packages pkg-config)
  51   #:use-module (gnu packages pretty-print)
  52   #:use-module (gnu packages python)
  53   #:use-module (gnu packages python-xyz)
  54   #:use-module (gnu packages readline)
  55   #:use-module (gnu packages serialization)
  56   #:use-module (gnu packages virtualization)
  57   #:use-module (gnu packages xdisorg)
  58   #:use-module (ice-9 match)
  59   #:use-module (srfi srfi-1))
  60
  61 (define-public delta
  62   (package
  63     (name "delta")
  64     (version "2006.08.03")
  65     (source
  66      (origin
  67       (method url-fetch)
  68       (uri (list
  69             (string-append "mirror://debian/pool/main/d/delta/"
  70                            "delta_" version ".orig.tar.gz")
  71             ;; This uri seems to send guix download into an infinite loop
  72             (string-append "http://delta.tigris.org/files/documents/3103/"
  73                            "33566/delta-" version ".tar.gz")))
  74       (sha256
  75        (base32
  76         "184wh35pf2ddx97319s6sgkzpz48xxkbwzcjpycv009bm53lh61q"))))
  77     (build-system gnu-build-system)
  78     (inputs                             ;Installed programs are perl scripts
  79      `(("perl" ,perl)))
  80     (arguments
  81      `(#:phases
  82        (modify-phases %standard-phases
  83          (replace 'install
  84            (lambda* (#:key outputs #:allow-other-keys)
  85              ;; Makefile contains no install target
  86              (let* ((out (assoc-ref outputs "out"))
  87                     (bin (string-append out "/bin"))
  88                     (doc (string-append out "/share/doc/delta-" ,version)))
  89                (begin
  90                  (for-each (lambda (h)
  91                              (install-file h doc))
  92                            `("License.txt" ,@(find-files "www" ".*\\.html")))
  93                  (for-each (lambda (b)
  94                              (install-file b bin))
  95                            `("delta" "multidelta" "topformflat"))))
  96              #t))
  97          (delete 'configure))))         ; no configure script
  98     (home-page "http://delta.tigris.org/")
  99     (synopsis "Heuristical file minimizer")
 100     (description
 101      "Delta assists you in minimizing \"interesting\" files subject to a test
 102 of their interestingness.  A common such situation is when attempting to
 103 isolate a small failure-inducing substring of a large input that causes your
 104 program to exhibit a bug.")
 105     ;; See License.txt, which is a bsd-3 license, despite the project's
 106     ;; home-page pointing to a bsd-2 license.
 107     (license license:bsd-3)))
 108
 109 (define-public c-reduce
 110   (package
 111     (name "c-reduce")
 112     (version "2.10.0")
 113     (source
 114      (origin
 115       (method url-fetch)
 116       (uri (list
 117             (string-append "http://embed.cs.utah.edu/creduce/"
 118                            "creduce-" version ".tar.gz")))
 119       (sha256
 120        (base32 "0qx0zq8jxzx2as2zf0740g7kvgq163ayn3041di4vwk77490y76v"))))
 121     (build-system gnu-build-system)
 122     (inputs
 123      `(("astyle"          ,astyle)
 124        ("llvm"            ,llvm)
 125        ("clang"           ,clang)
 126        ("flex"            ,flex)
 127        ("indent"          ,indent)
 128        ("perl"            ,perl)
 129        ("exporter-lite"   ,perl-exporter-lite)
 130        ("file-which"      ,perl-file-which)
 131        ("getopt-tabular"  ,perl-getopt-tabular)
 132        ("regex-common"    ,perl-regexp-common)
 133        ("term-readkey"    ,perl-term-readkey)))
 134     (arguments
 135      `(#:phases
 136        (modify-phases %standard-phases
 137          (replace 'check
 138            (lambda _
 139              (with-directory-excursion "tests"
 140                ;; Running all tests can take a looong time, and tests 4 and 5
 141                ;; require frama-c or kcc.  So run just one for sanity.
 142                (invoke "./run_tests" "1"))))
 143          (add-after 'install 'set-load-paths
 144            (lambda* (#:key inputs outputs #:allow-other-keys)
 145              ;; Tell creduce where to find the perl modules it needs.
 146              (let* ((out (assoc-ref outputs "out"))
 147                     (prog (string-append out "/bin/creduce")))
 148                (wrap-program
 149                    prog
 150                  `("PERL5LIB" ":" prefix
 151                    ,(map (lambda (p)
 152                            (string-append (assoc-ref inputs p)
 153                                           "/lib/perl5/site_perl/"
 154                                           ,(package-version perl)))
 155                          '("term-readkey"    "exporter-lite"
 156                            "file-which"      "getopt-tabular"
 157                            "regex-common")))))
 158              #t)))))
 159     (home-page "https://embed.cs.utah.edu/creduce")
 160     (synopsis "Reducer for interesting code")
 161     (description
 162      "C-Reduce is a tool that takes a large C or C++ program that has a
 163 property of interest (such as triggering a compiler bug) and automatically
 164 produces a much smaller C/C++ program that has the same property.  It is
 165 intended for use by people who discover and report bugs in compilers and other
 166 tools that process C/C++ code.")
 167     (license license:ncsa)))
 168
 169 (define-public american-fuzzy-lop
 170   (let ((machine (match (or (%current-target-system)
 171                             (%current-system))
 172                    ("x86_64-linux"   "x86_64")
 173                    ("i686-linux"     "i386")
 174                    ("aarch64-linux"  "aarch64")
 175                    ("armhf-linux"    "arm")
 176                    ("mips64el-linux" "mips64el")
 177                    ;; Prevent errors when querying this package on unsupported
 178                    ;; platforms, e.g. when running "guix package --search="
 179                    (_                "UNSUPPORTED"))))
 180     (package
 181       (name "american-fuzzy-lop")
 182       (version "2.56b")             ;It seems all releases have the 'b' suffix
 183       (source
 184        (origin
 185          (method git-fetch)
 186          (uri (git-reference
 187                (url "https://github.com/google/AFL")
 188                (commit (string-append "v" version))))
 189          (sha256
 190           (base32 "1q1g59gkm48aa4cg9h70jx4i2gapmypgp5rzs156b2avd95vwkn1"))
 191          (file-name (git-file-name name version))))
 192       (build-system gnu-build-system)
 193       (inputs
 194        `(("qemu" ,qemu-for-american-fuzzy-lop)))
 195       (arguments
 196        `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
 197                             (string-append "DOC_PATH=$(PREFIX)/share/doc/"
 198                                            ,name "-" ,version)
 199                             "CC=gcc")
 200          #:phases (modify-phases %standard-phases
 201                     (add-after 'unpack 'make-git-checkout-writable
 202                       (lambda _
 203                         (for-each make-file-writable (find-files "."))
 204                         #t))
 205                     (delete 'configure)
 206                     ,@(if (string=? (%current-system) (or "x86_64-linux"
 207                                                           "i686-linux"))
 208                         '()
 209                         '((add-before 'build 'set-afl-flag
 210                             (lambda _ (setenv "AFL_NO_X86" "1") #t))
 211                           (add-after 'install 'remove-x86-programs
 212                             (lambda* (#:key outputs #:allow-other-keys)
 213                               (let* ((out (assoc-ref outputs "out"))
 214                                      (bin (string-append out "/bin/")))
 215                                 (delete-file (string-append bin "afl-gcc"))
 216                                 (delete-file (string-append bin "afl-g++"))
 217                                 (delete-file (string-append bin "afl-clang"))
 218                                 (delete-file (string-append bin "afl-clang++")))
 219                               #t))))
 220                     (add-after
 221                      ;; TODO: Build and install the afl-llvm tool.
 222                      'install 'install-qemu
 223                      (lambda* (#:key inputs outputs #:allow-other-keys)
 224                        (let ((qemu (assoc-ref inputs "qemu"))
 225                              (out  (assoc-ref outputs "out")))
 226                          (symlink (string-append qemu "/bin/qemu-" ,machine)
 227                                   (string-append out "/bin/afl-qemu-trace"))
 228                          #t)))
 229                     (delete 'check)))) ; tests are run during 'install phase
 230       (home-page "https://lcamtuf.coredump.cx/afl/")
 231       (synopsis "Security-oriented fuzzer")
 232       (description
 233        "American fuzzy lop is a security-oriented fuzzer that employs a novel
 234 type of compile-time instrumentation and genetic algorithms to automatically
 235 discover clean, interesting test cases that trigger new internal states in the
 236 targeted binary.  This substantially improves the functional coverage for the
 237 fuzzed code.  The compact synthesized corpora produced by the tool are also
 238 useful for seeding other, more labor- or resource-intensive testing regimes
 239 down the road.")
 240       (license license:asl2.0))))
 241
 242 (define-public qemu-for-american-fuzzy-lop
 243   ;; afl only supports using a single afl-qemu-trace executable, so
 244   ;; we only build qemu for the native target.
 245   (let ((machine (match (or (%current-target-system)
 246                             (%current-system))
 247                    ("x86_64-linux"   "x86_64")
 248                    ("i686-linux"     "i386")
 249                    ("aarch64-linux"  "aarch64")
 250                    ("armhf-linux"    "arm")
 251                    ("mips64el-linux" "mips64el")
 252                    ;; Prevent errors when querying this package on unsupported
 253                    ;; platforms, e.g. when running "guix package --search="
 254                    (_                "UNSUPPORTED"))))
 255   (hidden-package
 256    (package
 257     (name "qemu")
 258     (version "2.10.2")
 259     (source (origin
 260              (method url-fetch)
 261              (uri (string-append "https://download.qemu.org/qemu-"
 262                                  version ".tar.xz"))
 263              (sha256
 264               (base32
 265                "17w21spvaxaidi2am5lpsln8yjpyp2zi3s3gc6nsxj5arlgamzgw"))
 266              (patches
 267               (search-patches "qemu-glibc-2.27.patch"))))
 268     (build-system gnu-build-system)
 269     (arguments
 270      `(;; Running tests in parallel can occasionally lead to failures, like:
 271        ;; boot_sector_test: assertion failed (signature == SIGNATURE): (0x00000000 == 0x0000dead)
 272        #:parallel-tests? #f
 273        #:configure-flags
 274        (list (string-append "--target-list=" ,machine "-linux-user"))
 275        #:make-flags '("V=1")
 276        #:phases
 277        (modify-phases %standard-phases
 278          (replace 'configure
 279            (lambda* (#:key inputs outputs (configure-flags '())
 280                            #:allow-other-keys)
 281              ;; The `configure' script doesn't understand some of the
 282              ;; GNU options.  Thus, add a new phase that's compatible.
 283              (let ((out (assoc-ref outputs "out")))
 284                (setenv "SHELL" (which "bash"))
 285
 286                ;; While we're at it, patch for tests.
 287                (substitute* "tests/libqtest.c"
 288                  (("/bin/sh") (which "sh")))
 289
 290                ;; The binaries need to be linked against -lrt.
 291                (setenv "LDFLAGS" "-lrt")
 292                (apply invoke
 293                       `("./configure"
 294                         ,(string-append "--cc=" (which "gcc"))
 295                         ;; Some architectures insist on using HOST_CC
 296                         ,(string-append "--host-cc=" (which "gcc"))
 297                         "--disable-debug-info" ; save build space
 298                         "--enable-virtfs"      ; just to be sure
 299                         ,(string-append "--prefix=" out)
 300                         ,(string-append "--sysconfdir=/etc")
 301                         ,@configure-flags)))))
 302          (add-after
 303           'unpack 'apply-afl-patches
 304           (lambda* (#:key inputs #:allow-other-keys)
 305             (let* ((afl-src (assoc-ref inputs "afl-source"))
 306                    (patch-dir "qemu_mode/patches"))
 307               (copy-recursively (string-append afl-src "/"
 308                                                patch-dir)
 309                                 patch-dir)
 310               (install-file
 311                (string-append patch-dir
 312                               "/afl-qemu-cpu-inl.h")
 313                ".")
 314               (copy-file (string-append afl-src "/config.h")
 315                          "./afl-config.h")
 316               (install-file (string-append afl-src "/types.h")
 317                             ".")
 318               (substitute* "afl-qemu-cpu-inl.h"
 319                 (("\\.\\./\\.\\./config.h") "afl-config.h"))
 320               (substitute* (string-append patch-dir
 321                                           "/cpu-exec.diff")
 322                 (("\\.\\./patches/") ""))
 323
 324               ;; These were already applied to qemu-minimal-2.10.
 325               (for-each (lambda (obsolete-patch)
 326                           (delete-file (string-append
 327                                         patch-dir "/"
 328                                         obsolete-patch)))
 329                         (list "configure.diff"
 330                               "memfd.diff"))
 331
 332               (for-each (lambda (patch-file)
 333                           (invoke "patch" "--force" "-p1"
 334                                   "--input" patch-file))
 335                         (find-files patch-dir
 336                                     "\\.diff$"))
 337               #t)))
 338          (add-before 'check 'disable-unusable-tests
 339            (lambda* (#:key inputs outputs #:allow-other-keys)
 340              (substitute* "tests/Makefile.include"
 341                ;; Comment out the test-qga test, which needs /sys and
 342                ;; fails within the build environment.
 343                (("check-unit-.* tests/test-qga" all)
 344                 (string-append "# " all)))
 345              (substitute* "tests/Makefile.include"
 346                ;; Comment out the test-char test, which needs networking and
 347                ;; fails within the build environment.
 348                (("check-unit-.* tests/test-char" all)
 349                 (string-append "# " all)))
 350              #t)))))
 351     (native-inputs
 352      `(("python-2" ,python-2) ; QEMU 2 needs Python 2
 353        ("glib:bin" ,glib "bin")
 354        ("perl" ,perl)
 355        ("flex" ,flex)
 356        ("bison" ,bison)
 357        ("pkg-config" ,pkg-config)))
 358     (inputs
 359      `(("afl-source" ,(package-source american-fuzzy-lop))
 360        ("alsa-lib" ,alsa-lib)
 361        ("attr" ,attr)
 362        ("glib" ,glib)
 363        ("libaio" ,libaio)
 364        ("libattr" ,attr)
 365        ("libcap" ,libcap)
 366        ("libjpeg" ,libjpeg-turbo)
 367        ("libpng" ,libpng)
 368        ("ncurses" ,ncurses)
 369        ("pixman" ,pixman)
 370        ("util-linux" ,util-linux)
 371        ("zlib" ,zlib)))
 372     (home-page "https://www.qemu.org")
 373     (synopsis "Machine emulator and virtualizer (without GUI) for american fuzzy lop")
 374     (description
 375      "QEMU is a generic machine emulator and virtualizer.  This package
 376 of QEMU is used only by the american fuzzy lop package.
 377
 378 When used as a machine emulator, QEMU can run OSes and programs made for one
 379 machine (e.g. an ARM board) on a different machine---e.g., your own PC.  By
 380 using dynamic translation, it achieves very good performance.
 381
 382 When used as a virtualizer, QEMU achieves near native performances by
 383 executing the guest code directly on the host CPU.  QEMU supports
 384 virtualization when executing under the Xen hypervisor or using
 385 the KVM kernel module in Linux.  When using KVM, QEMU can virtualize x86,
 386 server and embedded PowerPC, and S390 guests.")
 387     ;; Many files are GPLv2+, but some are GPLv2-only---e.g., `memory.c'.
 388     (license license:gpl2)
 389     ;; Several tests fail on MIPS.
 390     (supported-systems (delete "mips64el-linux" %supported-systems))))))
 391
 392 (define-public stress-make
 393   (let ((commit "9e92dff8f0157f012aaf31de5b8b8112ad720100")
 394         (revision "1"))                 ;No official source distribution
 395     (package
 396       (name "stress-make")
 397       (version (git-version "1.0" revision commit))
 398       (source
 399        (origin
 400          (method git-fetch)
 401          (uri (git-reference
 402                (url "https://github.com/lanl/stress-make.git")
 403                (commit commit)))
 404          (file-name (git-file-name name version))
 405          (sha256
 406           (base32
 407            "1z1yiwnqyzv3v6152fnjbfh2lr8q8fi5xxfdclnr8l8sd4c1rasp"))))
 408       (build-system gnu-build-system)
 409       (native-inputs
 410        `(("autoconf" ,autoconf)
 411          ("automake" ,automake)
 412          ("go" ,go)))
 413       (inputs
 414        `(("make-source" ,(package-source gnu-make))))
 415       (arguments
 416        ;; stress-make's configure script insists on having a tarball and does
 417        ;; not accept a directory name instead.  To let the gnu-build-system's
 418        ;; patch-* phases work properly, we unpack the source first, then
 419        ;; repack before the configure phase.
 420        (let ((make-dir (string-append "make-" (package-version gnu-make))))
 421          `(#:configure-flags '("--with-make-tar=./make.tar.xz"
 422                                "make_cv_sys_gnu_glob=yes")
 423            #:phases
 424            (modify-phases %standard-phases
 425              (add-after 'unpack 'unpack-make
 426                (lambda* (#:key inputs #:allow-other-keys)
 427                  (invoke "tar" "xf" (assoc-ref inputs "make-source"))))
 428              (add-after 'unpack-make 'set-default-shell
 429                (lambda _
 430                  ;; Taken mostly directly from (@ (gnu packages base) gnu-make)
 431                  (substitute* (string-append ,make-dir "/job.c")
 432                    (("default_shell = .*$")
 433                     (format #f "default_shell = \"~a\";\n"
 434                             (which "sh"))))))
 435              (add-before 'configure 'repack-make
 436                (lambda _
 437                  (invoke "tar" "cJf" "./make.tar.xz" ,make-dir)))
 438              (add-before 'build 'setup-go
 439                ;; The Go cache is required starting in Go 1.12, and it needs
 440                ;; to be writable.
 441                (lambda _ (setenv "GOCACHE" "/tmp/go-cache") #t))))))
 442       (home-page "https://github.com/lanl/stress-make")
 443       (synopsis "Expose race conditions in Makefiles")
 444       (description
 445        "Stress Make is a customized GNU Make that explicitly manages the order
 446 in which concurrent jobs are run to provoke erroneous behavior into becoming
 447 manifest.  It can run jobs in the order in which they're launched, in backwards
 448 order, or in random order.  The thought is that if code builds correctly with
 449 Stress Make, then it is likely that the @code{Makefile} contains no race
 450 conditions.")
 451       ;; stress-make wrapper is under BSD-3-modifications-must-be-indicated,
 452       ;; and patched GNU Make is under its own license.
 453       (license (list (license:non-copyleft "LICENSE.md")
 454                      license:gpl3+)))))
 455
 456 (define-public zzuf
 457   (package
 458     (name "zzuf")
 459     (version "0.15")
 460     (source
 461      (origin
 462        (method url-fetch)
 463        (uri (string-append
 464              "https://github.com/samhocevar/zzuf/releases/download/v"
 465              version "/" name "-" version ".tar.gz"))
 466        (file-name (string-append name "-" version ".tar.gz"))
 467        (sha256
 468         (base32
 469          "1mpzjaksc2qg2hzqflf39pl06p53qam2dn3hkhkcv6p00d2n4kx3"))))
 470     (build-system gnu-build-system)
 471     (home-page "https://github.com/samhocevar/zzuf")
 472     (synopsis "Transparent application input fuzzer")
 473     (description "Zzuf is a transparent application input fuzzer.  It works by
 474 intercepting file operations and changing random bits in the program's
 475 input.  Zzuf's behaviour is deterministic, making it easy to reproduce bugs.")
 476     (license license:wtfpl2)))
 477
 478 (define-public scanmem
 479   (package
 480     (name "scanmem")
 481     (version "0.17")
 482     (source
 483      (origin
 484        (method git-fetch)
 485        (uri (git-reference
 486              (url "https://github.com/scanmem/scanmem")
 487              (commit (string-append "v" version))))
 488        (file-name (git-file-name name version))
 489        (sha256
 490         (base32
 491          "17p8sh0rj8yqz36ria5bp48c8523zzw3y9g8sbm2jwq7sc27i7s9"))))
 492     (build-system gnu-build-system)
 493     (arguments
 494      `(#:configure-flags '("--enable-gui")
 495        #:phases
 496        (modify-phases %standard-phases
 497          (add-before 'configure 'hardcode-python
 498            (lambda* (#:key inputs outputs #:allow-other-keys)
 499              (substitute* "gui/GameConqueror.py"
 500                (("/usr/bin/env python")
 501                 (string-append (assoc-ref %build-inputs
 502                                           "python-wrapper") "/bin/python")))
 503              #t))
 504          (add-after 'install 'wrap-gameconqueror
 505            (lambda* (#:key inputs outputs #:allow-other-keys)
 506              (let ((out               (assoc-ref outputs "out"))
 507                    (gi-typelib-path   (getenv "GI_TYPELIB_PATH"))
 508                    (python-path       (getenv "PYTHONPATH")))
 509                (wrap-program (string-append out "/share/gameconqueror/GameConqueror.py")
 510                  `("GI_TYPELIB_PATH"        ":" prefix (,gi-typelib-path))
 511                  `("PYTHONPATH"             ":" prefix (,python-path))))
 512              #t)))))
 513     (native-inputs
 514      `(("libtool" ,libtool)
 515        ("python-wrapper" ,python-wrapper)
 516        ("gobject-introspection" ,gobject-introspection)
 517        ("gtk+" ,gtk+)
 518        ("intltool" ,intltool)
 519        ("automake" ,automake)
 520        ("autoconf" ,autoconf)))
 521     (inputs
 522      `(("readline" ,readline)))
 523     (propagated-inputs
 524      `(("python-pygobject" ,python-pygobject)))
 525     (home-page "https://github.com/scanmem/scanmem")
 526     (synopsis "Memory scanner")
 527     (description "Scanmem is a debugging utility designed to isolate the
 528 address of an arbitrary variable in an executing process.  Scanmem simply
 529 needs to be told the pid of the process and the value of the variable at
 530 several different times.  After several scans of the process, scanmem isolates
 531 the position of the variable and allows you to modify its value.")
 532     ;; The library is covered by LGPLv3 or later; the application is covered
 533     ;; by GPLv3 or later.
 534     (license (list license:lgpl3+ license:gpl3+))))
 535
 536 (define-public rr
 537   (package
 538     (name "rr")
 539     (version "5.3.0")
 540     (source (origin
 541               (method git-fetch)
 542               (uri (git-reference
 543                     (url "https://github.com/mozilla/rr")
 544                     (commit version)))
 545               (sha256
 546                (base32
 547                 "1x6l1xsdksnhz9v50p4r7hhmr077cq20kaywqy1jzdklvkjqzf64"))
 548               (file-name (git-file-name name version))))
 549     (build-system cmake-build-system)
 550     (arguments
 551      `(#:configure-flags
 552        ;; The 'rr_exec_stub' is a static binary, which leads CMake to fail
 553        ;; with:
 554        ;;
 555        ;;   file RPATH_CHANGE could not write new RPATH:
 556        ;;
 557        ;; Clear CMAKE_INSTALL_RPATH to avoid that problem.
 558        (list "-DCMAKE_INSTALL_RPATH="
 559              ,@(if (and (not (%current-target-system))
 560                         (member (%current-system)
 561                                 '("x86_64-linux" "aarch64-linux")))
 562                    ;; The toolchain doesn't support '-m32'.
 563                    '("-Ddisable32bit=ON")
 564                    '()))
 565
 566        ;; XXX: Most tests fail with:
 567        ;;
 568        ;;  rr needs /proc/sys/kernel/perf_event_paranoid <= 1, but it is 2.
 569        ;;
 570        ;; This setting cannot be changed from the build environment, so skip
 571        ;; the tests.
 572        #:tests? #f
 573
 574        #:phases (modify-phases %standard-phases
 575                   (add-before 'check 'set-home
 576                     (lambda _
 577                       ;; Some tests expect 'HOME' to be set.
 578                       (setenv "HOME" (getcwd))
 579                       #t)))))
 580     (native-inputs
 581      `(("pkg-config" ,pkg-config)
 582        ("ninja" ,ninja)
 583        ("which" ,which)))
 584     (inputs
 585      `(("gdb" ,gdb)
 586        ("cpanproto" ,capnproto)
 587        ("python" ,python)
 588        ("python-pexpect" ,python-pexpect)))
 589     (home-page "https://rr-project.org/")
 590     (synopsis "Record and reply debugging framework")
 591     (description
 592      "rr is a lightweight tool for recording, replaying and debugging
 593 execution of applications (trees of processes and threads).  Debugging extends
 594 GDB with very efficient reverse-execution, which in combination with standard
 595 GDB/x86 features like hardware data watchpoints, makes debugging much more
 596 fun.")
 597     (license license:expat)))