151 lines
6.6 KiB
Scheme
151 lines
6.6 KiB
Scheme
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (test-debug-link)
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#:use-module (guix elf)
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#:use-module (guix build utils)
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#:use-module (guix build debug-link)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (guix tests)
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#:use-module (guix monads)
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#:use-module (guix derivations)
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#:use-module (gnu packages bootstrap)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-64)
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#:use-module (rnrs io ports)
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#:use-module (ice-9 match))
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(define %guile-executable
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(match (false-if-exception (readlink "/proc/self/exe"))
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((? string? program)
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(and (file-exists? program) (elf-file? program)
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program))
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(_
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#f)))
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(define read-elf
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(compose parse-elf get-bytevector-all))
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(test-begin "debug-link")
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(unless %guile-executable (test-skip 1))
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(test-assert "elf-debuglink"
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(let ((elf (call-with-input-file %guile-executable read-elf)))
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(match (call-with-values (lambda () (elf-debuglink elf)) list)
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((#f #f) ;no '.gnu_debuglink' section
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(pk 'no-debuglink #t))
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(((? string? file) (? integer? crc))
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(string-suffix? ".debug" file)))))
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;; Since we need %BOOTSTRAP-GCC and co., we have to skip the following tests
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;; when networking is unreachable because we'd fail to download it.
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(unless (network-reachable?) (test-skip 1))
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(test-assertm "elf-debuglink"
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;; Check whether we can compute the CRC just like objcopy, and whether we
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;; can retrieve it.
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(let* ((code (plain-file "test.c" "int main () { return 42; }"))
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(exp (with-imported-modules '((guix build utils)
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(guix build debug-link)
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(guix elf))
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#~(begin
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(use-modules (guix build utils)
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(guix build debug-link)
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(guix elf)
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(rnrs io ports))
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(define read-elf
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(compose parse-elf get-bytevector-all))
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(setenv "PATH" (string-join '(#$%bootstrap-gcc
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#$%bootstrap-binutils)
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"/bin:" 'suffix))
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(invoke "gcc" "-O0" "-g" #$code "-o" "exe")
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(copy-file "exe" "exe.debug")
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(invoke "strip" "--only-keep-debug" "exe.debug")
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(invoke "strip" "--strip-debug" "exe")
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(invoke "objcopy" "--add-gnu-debuglink=exe.debug"
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"exe")
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(call-with-values (lambda ()
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(elf-debuglink
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(call-with-input-file "exe"
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read-elf)))
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(lambda (file crc)
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(call-with-output-file #$output
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(lambda (port)
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(let ((expected (call-with-input-file "exe.debug"
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debuglink-crc32)))
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(write (list file (= crc expected))
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port))))))))))
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(mlet* %store-monad ((drv (gexp->derivation "debuglink" exp))
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(x (built-derivations (list drv))))
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(call-with-input-file (derivation->output-path drv)
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(lambda (port)
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(return (match (read port)
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(("exe.debug" #t) #t)
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(x (pk 'fail x #f)))))))))
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(unless (network-reachable?) (test-skip 1))
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(test-assertm "set-debuglink-crc"
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;; Check whether 'set-debuglink-crc' successfully updates the CRC.
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(let* ((code (plain-file "test.c" "int main () { return 42; }"))
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(debug (plain-file "exe.debug" "a"))
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(exp (with-imported-modules '((guix build utils)
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(guix build debug-link)
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(guix elf))
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#~(begin
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(use-modules (guix build utils)
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(guix build debug-link)
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(guix elf)
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(rnrs io ports))
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(define read-elf
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(compose parse-elf get-bytevector-all))
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(setenv "PATH" (string-join '(#$%bootstrap-gcc
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#$%bootstrap-binutils)
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"/bin:" 'suffix))
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(invoke "gcc" "-O0" "-g" #$code "-o" "exe")
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(copy-file "exe" "exe.debug")
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(invoke "strip" "--only-keep-debug" "exe.debug")
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(invoke "strip" "--strip-debug" "exe")
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(invoke "objcopy" "--add-gnu-debuglink=exe.debug"
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"exe")
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(set-debuglink-crc "exe" #$debug)
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(call-with-values (lambda ()
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(elf-debuglink
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(call-with-input-file "exe"
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read-elf)))
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(lambda (file crc)
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(call-with-output-file #$output
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(lambda (port)
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(write (list file crc) port)))))))))
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(mlet* %store-monad ((drv (gexp->derivation "debuglink" exp))
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(x (built-derivations (list drv))))
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(call-with-input-file (derivation->output-path drv)
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(lambda (port)
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(return (match (read port)
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(("exe.debug" crc)
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(= crc (debuglink-crc32 (open-input-string "a"))))
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(x
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(pk 'fail x #f)))))))))
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(test-end "debug-link")
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