HCoop / jackhill / guix / guix.git / blame
| Commit | Line | Data |
|---|---|---|
| 3309e3a1 LC |
1 | ;;; GNU Guix --- Functional package management for GNU |
| 2 | ;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org> | |
| 3 | ;;; | |
| 4 | ;;; This file is part of GNU Guix. | |
| 5 | ;;; | |
| 6 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
| 7 | ;;; under the terms of the GNU General Public License as published by | |
| 8 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
| 9 | ;;; your option) any later version. | |
| 10 | ;;; | |
| 11 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
| 12 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | ;;; GNU General Public License for more details. | |
| 15 | ;;; | |
| 16 | ;;; You should have received a copy of the GNU General Public License | |
| 17 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
| 18 | ||
| 19 | (define-module (guix build rpath) | |
| 20 | #:use-module (ice-9 popen) | |
| 21 | #:use-module (ice-9 rdelim) | |
| 22 | #:export (%patchelf | |
| 23 | file-rpath | |
| 24 | augment-rpath)) | |
| 25 | ||
| 26 | ;;; Commentary: | |
| 27 | ;;; | |
| 28 | ;;; Tools to manipulate the RPATH and RUNPATH of ELF binaries. Currently they | |
| 29 | ;;; rely on PatchELF. | |
| 30 | ;;; | |
| 31 | ;;; Code: | |
| 32 | ||
| 33 | (define %patchelf | |
| 34 | ;; The `patchelf' command. | |
| 35 | (make-parameter "patchelf")) | |
| 36 | ||
| 37 | (define %not-colon | |
| 38 | (char-set-complement (char-set #\:))) | |
| 39 | ||
| 40 | (define (file-rpath file) | |
| 41 | "Return the RPATH (or RUNPATH) of FILE as a list of directory names, or #f | |
| 42 | on failure." | |
| 43 | (let* ((p (open-pipe* OPEN_READ (%patchelf) "--print-rpath" file)) | |
| 44 | (l (read-line p))) | |
| 45 | (and (zero? (close-pipe p)) | |
| 46 | (string-tokenize l %not-colon)))) | |
| 47 | ||
| 48 | (define (augment-rpath file dir) | |
| 49 | "Add DIR to the front of the RPATH and RUNPATH of FILE. Return the new | |
| 50 | RPATH as a list, or #f on failure." | |
| 51 | (let* ((rpath (or (file-rpath file) '())) | |
| 52 | (rpath* (cons dir rpath))) | |
| 53 | (format #t "~a: changing RPATH from ~s to ~s~%" | |
| 54 | file rpath rpath*) | |
| 55 | (and (zero? (system* (%patchelf) "--set-rpath" | |
| 56 | (string-join rpath* ":") file)) | |
| 57 | rpath*))) | |
| 58 | ||
| 59 | ;;; rpath.scm ends here |