unofficial mirror of bug-guix@gnu.org 
 help / color / mirror / code / Atom feed
blob 3dbb8d3643aeea71d9b5edeada1c84798decbb2d 8006 bytes (raw)
name: tests/gremlin.scm 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2018, 2020, 2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2022 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2022 Pierre Langlois <pierre.langlois@gmx.com>
;;;
;;; 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 (test-gremlin)
  #:use-module (guix elf)
  #:use-module (guix tests)
  #:use-module ((guix utils) #:select (call-with-temporary-directory
                                       target-aarch64?))
  #:use-module (guix build utils)
  #:use-module (guix build gremlin)
  #:use-module (gnu packages bootstrap)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-26)
  #:use-module (srfi srfi-34)
  #:use-module (srfi srfi-64)
  #:use-module (rnrs io ports)
  #:use-module (ice-9 popen)
  #:use-module (ice-9 rdelim)
  #:use-module (ice-9 regex)
  #:use-module (ice-9 match))

(define %guile-executable
  (match (false-if-exception (readlink "/proc/self/exe"))
    ((? string? program)
     (and (file-exists? program) (elf-file? program)
          program))
    (_
     #f)))

(define read-elf
  (compose parse-elf get-bytevector-all))

(define c-compiler
  (or (which "gcc") (which "cc") (which "g++")))

\f
(test-begin "gremlin")

(unless %guile-executable (test-skip 1))
(test-assert "elf-dynamic-info-needed, executable"
  (let* ((elf     (call-with-input-file %guile-executable read-elf))
         (dyninfo (elf-dynamic-info elf)))
    (or (not dyninfo)                             ;static executable
        (lset<= string=?
                (list (string-append "libguile-" (effective-version))
                      "libc")
                (map (lambda (lib)
                       (string-take lib (string-contains lib ".so")))
                     (elf-dynamic-info-needed dyninfo))))))

(unless (and %guile-executable (not (getenv "LD_LIBRARY_PATH"))
             (file-needed %guile-executable) ;statically linked?
             ;; When Guix has been built on a foreign distro, using a
             ;; toolchain and libraries from that foreign distro, it is not
             ;; unusual for the runpath to be empty.
             (pair? (file-runpath %guile-executable)))
  (test-skip 1))
(test-assert "file-needed/recursive"
  (let* ((needed (file-needed/recursive %guile-executable))
         (pipe   (dynamic-wind
                   (lambda ()
                     ;; Tell ld.so to list loaded objects, like 'ldd' does.
                     (setenv "LD_TRACE_LOADED_OBJECTS" "yup"))
                   (lambda ()
                     (open-pipe* OPEN_READ %guile-executable))
                   (lambda ()
                     (unsetenv "LD_TRACE_LOADED_OBJECTS")))))
    (define ldd-rx
      (make-regexp "^[[:blank:]]+([[:graph:]]+ => )?([[:graph:]]+) .*$"))

    (define (read-ldd-output port)
      ;; Read from PORT output in GNU ldd format.
      (let loop ((result '()))
        (match (read-line port)
          ((? eof-object?)
           (reverse result))
          ((= (cut regexp-exec ldd-rx <>) m)
           (if m
               (loop (cons (match:substring m 2) result))
               (loop result))))))
    (define ground-truth
      (remove (lambda (entry)
                ;; See vdso(7) for the list of vDSO names across
                ;; architectures.
                (or (string-prefix? "linux-vdso.so" entry)
                    (string-prefix? "linux-vdso32.so" entry) ;32-bit powerpc
                    (string-prefix? "linux-vdso64.so" entry) ;64-bit powerpc
                    (string-prefix? "linux-gate.so" entry)   ;i386
                    ;; FIXME: ELF files on aarch64 do not always include a
                    ;; NEEDED entry for the dynamic linker, and it is unclear
                    ;; if that is OK.  See: https://issues.guix.gnu.org/52943
                    (and (target-aarch64?)
                         (string-contains entry (glibc-dynamic-linker)))))
              (read-ldd-output pipe)))

    (and (zero? (close-pipe pipe))
         ;; It's OK if file-needed/recursive returns multiple entries that are
         ;; different strings referring to the same file.  This appears to be a
         ;; benign edge case.  See: https://issues.guix.gnu.org/52940
         (lset= file=? (pk 'truth ground-truth) (pk 'needed needed)))))

(test-equal "expand-origin"
  '("OOO/../lib"
    "OOO"
    "../OOO/bar/OOO/baz"
    "ORIGIN/foo")
  (map (cut expand-origin <> "OOO")
       '("$ORIGIN/../lib"
         "${ORIGIN}"
         "../${ORIGIN}/bar/$ORIGIN/baz"
         "ORIGIN/foo")))

(unless c-compiler
  (test-skip 1))
(test-equal "strip-runpath"
  "hello\n"
  (call-with-temporary-directory
   (lambda (directory)
     (with-directory-excursion directory
       (call-with-output-file "t.c"
         (lambda (port)
           (display "int main () { puts(\"hello\"); }" port)))
       (invoke c-compiler "t.c"
               "-Wl,--enable-new-dtags" "-Wl,-rpath=/foo" "-Wl,-rpath=/bar")
       (let* ((dyninfo (elf-dynamic-info
                        (parse-elf (call-with-input-file "a.out"
                                     get-bytevector-all))))
              (old     (elf-dynamic-info-runpath dyninfo))
              (new     (strip-runpath "a.out"))
              (new*    (strip-runpath "a.out")))
         (validate-needed-in-runpath "a.out")
         (and (member "/foo" old) (member "/bar" old)
              (not (member "/foo" new))
              (not (member "/bar" new))
              (equal? new* new)
              (let* ((pipe (open-input-pipe "./a.out"))
                     (str  (get-string-all pipe)))
                (close-pipe pipe)
                str)))))))

(unless c-compiler
  (test-skip 1))
(test-equal "set-file-runpath + file-runpath"
  "hello\n"
  (call-with-temporary-directory
   (lambda (directory)
     (with-directory-excursion directory
       (call-with-output-file "t.c"
         (lambda (port)
           (display "int main () { puts(\"hello\"); }" port)))

       (invoke c-compiler "t.c"
               "-Wl,--enable-new-dtags" "-Wl,-rpath=/xxxxxxxxx")

       (let ((original-runpath (file-runpath "a.out")))
         (and (member "/xxxxxxxxx" original-runpath)
              (guard (c ((runpath-too-long-error? c)
                         (string=? "a.out" (runpath-too-long-error-file c))))
                (set-file-runpath "a.out" (list (make-string 777 #\y))))
              (let ((runpath (delete "/xxxxxxxxx" original-runpath)))
                (set-file-runpath "a.out" runpath)
                (equal? runpath (file-runpath "a.out")))
              (let* ((pipe (open-input-pipe "./a.out"))
                     (str  (get-string-all pipe)))
                (close-pipe pipe)
                str)))))))

(unless c-compiler
  (test-skip 1))
(test-equal "elf-dynamic-info-soname"
  "libfoo.so.2"
  (call-with-temporary-directory
   (lambda (directory)
     (with-directory-excursion directory
       (call-with-output-file "t.c"
         (lambda (port)
           (display "// empty file" port)))
       (invoke c-compiler "t.c"
               "-shared" "-Wl,-soname,libfoo.so.2")
       (let* ((dyninfo (elf-dynamic-info
                       (parse-elf (call-with-input-file "a.out"
                                    get-bytevector-all))))
              (soname  (elf-dynamic-info-soname dyninfo)))
	 soname)))))

(test-end "gremlin")

debug log:

solving 3dbb8d3643 ...
found 3dbb8d3643 in https://git.savannah.gnu.org/cgit/guix.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/guix.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).