diff options
Diffstat (limited to 'guix')
| -rw-r--r-- | guix/scripts/pack.scm | 182 |
1 files changed, 173 insertions, 9 deletions
diff --git a/guix/scripts/pack.scm b/guix/scripts/pack.scm index 0e09a01496..db5609219f 100644 --- a/guix/scripts/pack.scm +++ b/guix/scripts/pack.scm @@ -32,6 +32,8 @@ #:use-module (guix packages) #:use-module (guix profiles) #:use-module (guix derivations) + #:use-module (guix search-paths) + #:use-module (guix build-system gnu) #:use-module (guix scripts build) #:use-module (gnu packages) #:use-module (gnu packages bootstrap) @@ -100,11 +102,14 @@ with a properly initialized store database. SYMLINKS must be a list of (SOURCE -> TARGET) tuples denoting symlinks to be added to the pack." (define build - (with-imported-modules '((guix build utils) - (guix build store-copy) - (gnu build install)) + (with-imported-modules (source-module-closure + '((guix build utils) + (guix build union) + (guix build store-copy) + (gnu build install))) #~(begin (use-modules (guix build utils) + ((guix build union) #:select (relative-file-name)) (gnu build install) (srfi srfi-1) (srfi srfi-26) @@ -119,7 +124,8 @@ added to the pack." ((source '-> target) (let ((target (string-append #$profile "/" target))) `((directory ,(dirname source)) - (,source -> ,target)))))) + (,source + -> ,(relative-file-name (dirname source) target))))))) (define directives ;; Fully-qualified symlinks. @@ -217,11 +223,13 @@ the image." (('gnu rest ...) #t) (rest #f))) + (define defmod 'define-module) ;trick Geiser + (define config ;; (guix config) module for consumption by (guix gcrypt). (scheme-file "gcrypt-config.scm" #~(begin - (define-module (guix config) + (#$defmod (guix config) #:export (%libgcrypt)) ;; XXX: Work around <http://bugs.gnu.org/15602>. @@ -267,6 +275,150 @@ the image." ;;; +;;; Compiling C programs. +;;; + +;; A C compiler. That lowers to a single program that can be passed typical C +;; compiler flags, and it makes sure the whole toolchain is available. +(define-record-type <c-compiler> + (%c-compiler toolchain guile) + c-compiler? + (toolchain c-compiler-toolchain) + (guile c-compiler-guile)) + +(define* (c-compiler #:optional inputs + #:key (guile (default-guile))) + (%c-compiler inputs guile)) + +(define (bootstrap-c-compiler) + "Return the C compiler that uses the bootstrap toolchain. This is used only +by '--bootstrap', for testing purposes." + (define bootstrap-toolchain + (list (first (assoc-ref %bootstrap-inputs "gcc")) + (first (assoc-ref %bootstrap-inputs "binutils")) + (first (assoc-ref %bootstrap-inputs "libc")))) + + (c-compiler bootstrap-toolchain + #:guile %bootstrap-guile)) + +(define-gexp-compiler (c-compiler-compiler (compiler <c-compiler>) system target) + "Lower COMPILER to a single script that does the right thing." + (define toolchain + (or (c-compiler-toolchain compiler) + (list (first (assoc-ref (standard-packages) "gcc")) + (first (assoc-ref (standard-packages) "ld-wrapper")) + (first (assoc-ref (standard-packages) "binutils")) + (first (assoc-ref (standard-packages) "libc")) + (gexp-input (first (assoc-ref (standard-packages) "libc")) + "static")))) + + (define inputs + (match (append-map package-propagated-inputs + (filter package? toolchain)) + (((labels things . _) ...) + (append toolchain things)))) + + (define search-paths + (cons $PATH + (append-map package-native-search-paths + (filter package? inputs)))) + + (define run + (with-imported-modules (source-module-closure + '((guix build utils) + (guix search-paths))) + #~(begin + (use-modules (guix build utils) (guix search-paths) + (ice-9 match)) + + (define (output-file args) + (let loop ((args args)) + (match args + (() "a.out") + (("-o" file _ ...) file) + ((head rest ...) (loop rest))))) + + (set-search-paths (map sexp->search-path-specification + '#$(map search-path-specification->sexp + search-paths)) + '#$inputs) + + (let ((output (output-file (command-line)))) + (apply invoke "gcc" (cdr (command-line))) + (invoke "strip" output))))) + + (when target + ;; TODO: Yep, we'll have to do it someday! + (leave (G_ "cross-compilation not implemented here; +please email '~a'~%") + (@ (guix config) %guix-bug-report-address))) + + (gexp->script "c-compiler" run + #:guile (c-compiler-guile compiler))) + + +;;; +;;; Wrapped package. +;;; + +(define* (wrapped-package package + #:optional (compiler (c-compiler))) + (define runner + (local-file (search-auxiliary-file "run-in-namespace.c"))) + + (define build + (with-imported-modules '((guix build utils)) + #~(begin + (use-modules (guix build utils) + (ice-9 match)) + + (define (strip-store-prefix file) + ;; Given a file name like "/gnu/store/…-foo-1.2/bin/foo", return + ;; "/bin/foo". + (let* ((len (string-length (%store-directory))) + (base (string-drop file (+ 1 len)))) + (match (string-index base #\/) + (#f base) + (index (string-drop base index))))) + + (define (build-wrapper program) + ;; Build a user-namespace wrapper for PROGRAM. + (format #t "building wrapper for '~a'...~%" program) + (copy-file #$runner "run.c") + + (substitute* "run.c" + (("@WRAPPED_PROGRAM@") program) + (("@STORE_DIRECTORY@") (%store-directory))) + + (let* ((base (strip-store-prefix program)) + (result (string-append #$output "/" base))) + (mkdir-p (dirname result)) + (invoke #$compiler "-std=gnu99" "-static" "-Os" "-g0" "-Wall" + "run.c" "-o" result) + (delete-file "run.c"))) + + (setvbuf (current-output-port) + (cond-expand (guile-2.2 'line) + (else _IOLBF))) + (for-each build-wrapper + (append (find-files #$(file-append package "/bin")) + (find-files #$(file-append package "/sbin")) + (find-files #$(file-append package "/libexec"))))))) + + (computed-file (string-append (package-full-name package "-") "R") + build)) + +(define (map-manifest-entries proc manifest) + "Apply PROC to all the entries of MANIFEST and return a new manifest." + (make-manifest + (map (lambda (entry) + (manifest-entry + (inherit entry) + (item (proc (manifest-entry-item entry))))) + (manifest-entries manifest)))) + + +;;; ;;; Command-line options. ;;; @@ -302,6 +454,9 @@ the image." (option '(#\f "format") #t #f (lambda (opt name arg result) (alist-cons 'format (string->symbol arg) result))) + (option '(#\R "relocatable") #f #f + (lambda (opt name arg result) + (alist-cons 'relocatable? #t result))) (option '(#\e "expression") #t #f (lambda (opt name arg result) (alist-cons 'expression arg result))) @@ -354,6 +509,8 @@ Create a bundle of PACKAGE.\n")) (display (G_ " -f, --format=FORMAT build a pack in the given FORMAT")) (display (G_ " + -R, --relocatable produce relocatable executables")) + (display (G_ " -e, --expression=EXPR consider the package EXPR evaluates to")) (display (G_ " -s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\"")) @@ -417,6 +574,9 @@ Create a bundle of PACKAGE.\n")) (with-error-handling (with-store store + ;; Set the build options before we do anything else. + (set-build-options-from-command-line store opts) + (parameterize ((%graft? (assoc-ref opts 'graft?)) (%guile-for-build (package-derivation store @@ -425,7 +585,13 @@ Create a bundle of PACKAGE.\n")) (canonical-package guile-2.2)) #:graft? (assoc-ref opts 'graft?)))) (let* ((dry-run? (assoc-ref opts 'dry-run?)) - (manifest (manifest-from-args store opts)) + (relocatable? (assoc-ref opts 'relocatable?)) + (manifest (let ((manifest (manifest-from-args store opts))) + ;; Note: We cannot honor '--bootstrap' here because + ;; 'glibc-bootstrap' lacks 'libc.a'. + (if relocatable? + (map-manifest-entries wrapped-package manifest) + manifest))) (pack-format (assoc-ref opts 'format)) (name (string-append (symbol->string pack-format) "-pack")) @@ -444,12 +610,10 @@ Create a bundle of PACKAGE.\n")) (leave (G_ "~a: unknown pack format") format)))) (localstatedir? (assoc-ref opts 'localstatedir?))) - ;; Set the build options before we do anything else. - (set-build-options-from-command-line store opts) - (run-with-store store (mlet* %store-monad ((profile (profile-derivation manifest + #:relative-symlinks? relocatable? #:hooks (if bootstrap? '() %default-profile-hooks) |