;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2017-2023 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2017 Leo Famulari <leo@famulari.name>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018, 2020 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2020 Mark Wielaard <mark@klomp.org>
;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
;;; Copyright © 2021 Leo Le Bouter <lle-bout@zaclys.net>
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;;
;;; 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
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bz2"))
              (sha256
               (base32
                "1j2lsicm3dkj5n6spszr9qy5rqm48bqimmz03x6hry8hwvxhs2z7"))
              (patches (search-patches "elfutils-tests-ptrace.patch"))))
    (build-system gnu-build-system)

    ;; Separate programs because that's usually not what elfutils users want,
    ;; and because they duplicate what Binutils provides (but are named
    ;; differently, using the eu- prefix and can be installed in parallel).
    (outputs '("out"                           ; libelf.so, elfutils/*.h, etc.
               "bin"))                         ; eu-nm, eu-objdump, etc.

    (arguments
     ;; Programs don't have libelf.so in their RUNPATH and libraries don't
     ;; know where to find each other.
     `(#:configure-flags (list (string-append "LDFLAGS=-Wl,-rpath="
                                              (assoc-ref %outputs "out")
                                              "/lib")
                               "--disable-static"
                               ;; TODO: Enable the debuginfo server.  It
                               ;; increases the closure size significantly
                               ;; and presents bootstrapping problems, so
                               ;; we disable it for now.  See
                               ;; https://issues.guix.gnu.org/38803 and
                               ;; https://sourceware.org/bugzilla/show_bug.cgi?id=25509
                               ;; for more information.
                               "--disable-libdebuginfod"
                               "--disable-debuginfod")

       ;; Disable tests on MIPS and PowerPC (without changing
       ;; the arguments list on other systems).
       ,@(if (any (cute string-prefix? <> (or (%current-target-system)
                                              (%current-system)))
                  '("mips" "powerpc"))
             '(#:tests? #f)
             '())

       #:phases
       (modify-phases %standard-phases
         ;; No reason has been found for this test to reliably fail on aarch64-linux.
         (add-after 'unpack 'disable-failing-aarch64-tests
           (lambda _
             (substitute* "tests/Makefile.in"
               (("run-backtrace-native.sh") ""))
             #t))
         ,@(if (target-riscv64?)
             `((add-after 'unpack 'disable-failing-riscv64-test
                 (lambda _
                   (substitute* "tests/Makefile.in"
                     ;; dwfl_thread_getframes: No DWARF information found
                     (("run-backtrace-dwarf.sh") "")
                     ;; These tests have several errors:
                     ;; unknown program header entry type 0x70000003
                     ;; '.riscv.attributes' has unsupported type 1879048195
                     (("run-reverse-sections-self.sh") "")
                     (("run-strip-strmerge.sh") "")
                     (("run-elflint-self.sh") "")))))
             '()))))

    (native-inputs (list m4))
    (inputs (list xz zlib))
    (home-page "https://sourceware.org/elfutils/")
    (synopsis "Collection of utilities and libraries to handle ELF files and
DWARF data")
    (description
     "Elfutils is a collection of utilities and libraries to read, create and
modify Executable and Linkable Format (@dfn{ELF}) binary files, find and
handle Debugging With Arbitrary Record Formats (@dfn{DWARF}) debug data,
symbols, thread state and stacktraces for processes and core files on
GNU/Linux.  Elfutils includes @file{libelf} for manipulating ELF files,
@file{libdw} for inspecting DWARF data and process state and utilities like
@command{eu-stack} (to show backtraces), @command{eu-nm} (for listing symbols
from object files), @command{eu-size} (for listing the section sizes of an
object or archive file), @command{eu-strip} (for discarding symbols),
@command{eu-readelf} (to see the raw ELF file structures),
@command{eu-elflint} (to check for well-formed ELF files),
@command{eu-elfcompress} (to compress or decompress ELF sections), and more.")

    ;; Libraries are dual-licensed LGPLv3.0+ | GPLv2, and programs are GPLv3+.
    (license lgpl3+)))

(define-public libabigail
  (package
    (name "libabigail")
    (home-page "https://sourceware.org/libabigail/")
    (version "2.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://sourceware.org/pub/libabigail/"
                                  "libabigail-" version ".tar.gz"))
              (sha256
               (base32
                "1nkg7fsqvdr453hrskscy6xqz6fv45mylpgv1357dw3blnbsw11p"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags '("--disable-static"
                           "--enable-bash-completion"
                           "--enable-manual")
       #:make-flags '("V=1")
       #:phases (modify-phases %standard-phases
                  (add-after 'unpack 'patch-source
                    (lambda _
                      (substitute* "build-aux/ltmain.sh"
                        ;; Don't add -specs=/usr/lib/rpm/redhat/redhat-hardened-ld
                        ;; to the GCC command line.
                        (("compiler_flags=\"-specs=.*")
                         "compiler_flags=\n"))
                      #t))
                  (add-after 'build 'build-documentation
                    (lambda _
                      (invoke "make" "-C" "doc/manuals" "html-doc" "man" "info")))
                  (add-before 'check 'set-test-environment
                    (lambda _
                      (setenv "XDG_CACHE_HOME" "/tmp")
                      #t))
                  (add-after 'install 'install-documentation
                    (lambda _
                      (invoke "make" "-C" "doc/manuals"
                              "install-man-and-info-doc")))
                  (add-after 'install-documentation 'install-bash-completion
                    (lambda* (#:key outputs #:allow-other-keys)
                      (for-each (lambda (file)
                                  (install-file
                                   file (string-append (assoc-ref outputs "out")
                                                       "/share/bash-completion"
                                                       "/completions")))
                                (find-files "bash-completion" ".*abi.*"))
                      #t)))))
    (native-inputs
     (list pkg-config texinfo python-sphinx python))
    (propagated-inputs
     (list elfutils ;libabigail.la says -lelf
           libxml2))           ;in Requires.private of libabigail.pc
    (synopsis "Analyze application binary interfaces (ABIs)")
    (description
     "@dfn{ABIGAIL} stands for the Application Binary Interface Generic
Analysis and Instrumentation Library.  It is a framework which aims at
helping developers and software distributors to spot ABI-related issues
like interface incompatibility in ELF shared libraries by performing a
static analysis of the ELF binaries at hand.")
    (license lgpl3+)))

(define-public libelf
  (package
    (name "libelf")
    (version "0.8.13")
    (source
     (origin
       (method url-fetch)
       (uri (list
             ;; As of May 2019, the original URL at mr511.de redirects to a
             ;; domain that doesn't resolve.  Use these two mirrors instead.
             (string-append "https://fossies.org/linux/misc/old/"
                            "libelf-" version ".tar.gz")
             (string-append "https://ftp.osuosl.org/pub/blfs/conglomeration/"
                            "libelf/libelf-" version ".tar.gz")))
       (sha256
        (base32
         "0vf7s9dwk2xkmhb79aigqm0x0yfbw1j0b9ksm51207qwr179n6jr"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         ;; This old 'configure' script doesn't support cross-compilation
         ;; well.  I.e., it fails to find the cross-compiler.  Also,
         ;; the old `configure' script doesn't support variables passed as
         ;; arguments.  A third problem is that config.sub is too old to
         ;; recognise aarch64 and powerpc64le.
         ;;
         ;; Solve this by regenerating the configure script and letting
         ;; autoreconf update 'config.sub'.  While 'config.sub' is updated
         ;; anyway, update 'config.guess' as well.
         (add-before 'bootstrap 'delete-configure
           (lambda* (#:key native-inputs inputs #:allow-other-keys)
             (delete-file "configure")
             (delete-file "config.sub")
             (delete-file "config.guess")
             (for-each (lambda (file)
                         (install-file
                          (string-append
                           (assoc-ref (or native-inputs inputs) "automake")
                           "/share/automake-"
                           ,(version-major+minor (package-version automake))
                           "/" file) "."))
                       '("config.sub" "config.guess")))))))
    (native-inputs
     (list autoconf
           ;; For up-to-date 'config.guess' and 'config.sub'
           automake))
    (home-page (string-append "https://web.archive.org/web/20181111033959/"
                              "http://www.mr511.de/software/english.html"))
    (synopsis "ELF object file access library")
    (description "Libelf is a C library to access ELF object files.")
    (license lgpl2.0+)))

(define-public patchelf
  (package
    (name "patchelf")
    (version "0.11")
    (source (origin
             (method url-fetch)
             (uri (string-append
                   "https://nixos.org/releases/patchelf/patchelf-"
                   version
                   "/patchelf-" version ".tar.bz2"))
             (sha256
              (base32
               "16ms3ijcihb88j3x6cl8cbvhia72afmfcphczb9cfwr0gbc22chx"))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'fix-tests
           ;; Our GCC code ensures that RUNPATH is never empty, it includes
           ;; at least glibc/lib and gcc:lib/lib.
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "tests/no-rpath.sh"
               ;; Disable checking for an empty runpath:
               (("^if test.*") "")
               ;; Find libgcc_s.so, which is necessary for the test:
               (("/xxxxxxxxxxxxxxx") (string-append (assoc-ref inputs "gcc:lib")
                                                    "/lib")))
             #t)))))
    (native-inputs
     `(("gcc:lib" ,gcc "lib")))
    (home-page "https://nixos.org/patchelf.html")
    (synopsis "Modify the dynamic linker and RPATH of ELF executables")
    (description
     "PatchELF allows the ELF \"interpreter\" and RPATH of an ELF binary to be
changed.")
    ;; This can probably be removed with the next release.
    (properties
     '((release-monitoring-url . "https://github.com/NixOS/patchelf/releases")))
    (license gpl3+)))

(define-public libdwarf
  (package
    (name "libdwarf")
    (version "0.5.0")
    (source (origin
              (method git-fetch)
              ;; The archive at
              ;; https://www.prevanders.net/libdwarf-0.5.0.tar.xz
              ;; has a bad date header (3600).
              (uri (git-reference
                    (url "https://github.com/davea42/libdwarf-code")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "17sgjxx666nxvxn3g1xc8fj0b89jazq9v8ddp3j3ck0r257ki8n2"))))
    (build-system gnu-build-system)
    (arguments
     '(#:configure-flags '("--enable-shared")))
    (native-inputs (list autoconf automake libtool pkg-config python))
    (inputs (list elfutils))
    (home-page "https://www.prevanders.net/dwarf.html")
    (synopsis "Handle DWARF debugging information")
    (description "@code{libdwarf} is a library that handles the DWARF
debugging information format.")
    ;; See https://www.prevanders.net/dwarflicense.html:
    (license (list lgpl2.1 gpl2 bsd-2))))