diff options
| -rw-r--r-- | gnu/packages/ld-wrapper.scm | 95 |
1 files changed, 50 insertions, 45 deletions
diff --git a/gnu/packages/ld-wrapper.scm b/gnu/packages/ld-wrapper.scm index d3eb083f2f..19856176b3 100644 --- a/gnu/packages/ld-wrapper.scm +++ b/gnu/packages/ld-wrapper.scm @@ -11,7 +11,7 @@ main="(@ (gnu build-support ld-wrapper) ld-wrapper)" exec @GUILE@ -c "(load-compiled \"$0.go\") (apply $main (cdr (command-line)))" "$@" !# ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -30,6 +30,7 @@ exec @GUILE@ -c "(load-compiled \"$0.go\") (apply $main (cdr (command-line)))" " (define-module (gnu build-support ld-wrapper) #:use-module (srfi srfi-1) + #:use-module (ice-9 match) #:export (ld-wrapper)) ;;; Commentary: @@ -103,58 +104,62 @@ exec @GUILE@ -c "(load-compiled \"$0.go\") (apply $main (cdr (command-line)))" " (< depth %max-symlink-depth) (loop (readlink file) (+ 1 depth)))))))) -(define (switch-arguments switch args) - ;; Return the arguments passed for the occurrences of SWITCH--e.g., - ;; "-L"--in ARGS. - (let ((prefix-len (string-length switch))) - (fold-right (lambda (arg path) - (if (string-prefix? switch arg) - (cons (substring arg prefix-len) path) - path)) - '() - args))) - -(define (library-path args) - ;; Return the library search path extracted from `-L' switches in ARGS. - ;; Note: allow references to out-of-store directories. When this leads to - ;; actual impurities, this is caught later. - (switch-arguments "-L" args)) - (define (library-files-linked args) ;; Return the file names of shared libraries explicitly linked against via - ;; `-l' in ARGS. - (map (lambda (lib) - (string-append "lib" lib ".so")) - (switch-arguments "-l" args))) - -(define (rpath-arguments lib-path library-files) - ;; Return the `-rpath' argument list for each of LIBRARY-FILES found in - ;; LIB-PATH. + ;; `-l' or with an absolute file name in ARGS. + (define path+files + (fold (lambda (argument result) + (match result + ((library-path . library-files) + (cond ((string-prefix? "-L" argument) ;augment the search path + (cons (append library-path + (list (string-drop argument 2))) + library-files)) + ((string-prefix? "-l" argument) ;add library + (let* ((lib (string-append "lib" + (string-drop argument 2) + ".so")) + (full (search-path library-path lib))) + (if full + (cons library-path + (cons full library-files)) + result))) + ((and (string-prefix? %store-directory argument) + (string-suffix? ".so" argument)) ;add library + (cons library-path + (cons argument library-files))) + (else + result))))) + (cons '() '()) + args)) + + (match path+files + ((path . files) + (reverse files)))) + +(define (rpath-arguments library-files) + ;; Return the `-rpath' argument list for each of LIBRARY-FILES, a list of + ;; absolute file names. (fold-right (lambda (file args) - (let ((absolute (search-path lib-path file))) - (if absolute - (if (or %allow-impurities? - (pure-file-name? absolute)) - (cons* "-rpath" (dirname absolute) - args) - (begin - (format (current-error-port) - "ld-wrapper: error: attempt to use impure library ~s~%" - absolute) - (exit 1))) - args))) + (if (or %allow-impurities? + (pure-file-name? file)) + (cons* "-rpath" (dirname file) args) + (begin + (format (current-error-port) + "ld-wrapper: error: attempt to use impure library ~s~%" + file) + (exit 1)))) '() library-files)) (define (ld-wrapper . args) ;; Invoke the real `ld' with ARGS, augmented with `-rpath' switches. - (let* ((lib-path (library-path args)) - (libs (library-files-linked args)) - (args (append args (rpath-arguments lib-path libs)))) - (if %debug? - (format (current-error-port) - "ld-wrapper: invoking `~a' with ~s~%" - %real-ld args)) + (let* ((libs (library-files-linked args)) + (args (append args (rpath-arguments libs)))) + (when %debug? + (format (current-error-port) + "ld-wrapper: invoking `~a' with ~s~%" + %real-ld args)) (apply execl %real-ld (basename %real-ld) args))) ;;; ld-wrapper.scm ends here |