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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 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 boost)
#:use-module (gnu packages elf)
#:use-module (gnu packages llvm)
#:use-module (gnu packages tbb)
#:use-module (guix build-system cmake)
#:use-module (guix download)
#:use-module (guix git-download)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix packages))
(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+)))
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