@@ -610,74 +610,77 @@ (define* (cross-libc* target
(xbinutils (cross-binutils target))
(xheaders (cross-kernel-headers target)))
"Return LIBC cross-built for TARGET, a GNU triplet. Use XGCC and XBINUTILS
-and the cross tool chain."
- (if (target-mingw? target)
- (let ((machine (substring target 0 (string-index target #\-))))
- (make-mingw-w64 machine
- #:xgcc xgcc
- #:xbinutils xbinutils))
- (package
- (inherit libc)
- (name (string-append "glibc-cross-" target))
- (arguments
- (substitute-keyword-arguments
- `( ;; Disable stripping (see above.)
- #:strip-binaries? #f
-
- ;; This package is used as a target input, but it should not have
- ;; the usual cross-compilation inputs since that would include
- ;; itself.
- #:implicit-cross-inputs? #f
-
- ;; We need SRFI 26.
- #:modules ((guix build gnu-build-system)
- (guix build utils)
- (srfi srfi-26))
-
- ,@(package-arguments libc))
- ((#:configure-flags flags)
- `(cons ,(string-append "--host=" target)
- ,(if (target-hurd? target)
- `(append (list "--disable-werror"
- ,@%glibc/hurd-configure-flags)
- ,flags)
- flags)))
- ((#:phases phases)
- `(modify-phases ,phases
- (add-before 'configure 'set-cross-kernel-headers-path
- (lambda* (#:key inputs #:allow-other-keys)
- (let* ((kernel (assoc-ref inputs "kernel-headers"))
- (cpath (string-append kernel "/include")))
- (for-each (cut setenv <> cpath)
- ',%gcc-cross-include-paths)
- (setenv "CROSS_LIBRARY_PATH"
- (string-append kernel "/lib")) ; for Hurd's libihash
- #t)))
- ,@(if (target-hurd? target)
- '((add-after 'install 'augment-libc.so
- (lambda* (#:key outputs #:allow-other-keys)
- (let* ((out (assoc-ref outputs "out")))
- (substitute* (string-append out "/lib/libc.so")
- (("/[^ ]+/lib/libc.so.0.3")
- (string-append out "/lib/libc.so.0.3"
- " libmachuser.so libhurduser.so"))))
- #t)))
- '())))))
-
- ;; Shadow the native "kernel-headers" because glibc's recipe expects the
- ;; "kernel-headers" input to point to the right thing.
- (propagated-inputs `(("kernel-headers" ,xheaders)))
-
- (native-inputs `(("cross-gcc" ,xgcc)
- ("cross-binutils" ,xbinutils)
- ,@(if (target-hurd? target)
- `(("cross-mig"
- ,(cross-mig target
- #:xgcc xgcc
- #:xbinutils xbinutils)))
- '())
- ,@(package-inputs libc) ;FIXME: static-bash
- ,@(package-native-inputs libc))))))
+and the cross tool chain. If TARGET does not have a libc then #f is returned."
+ (match target
+ ((? target-mingw?)
+ (let ((machine (substring target 0 (string-index target #\-))))
+ (make-mingw-w64 machine
+ #:xgcc xgcc
+ #:xbinutils xbinutils)))
+ ((or (? target-linux?) (? target-hurd?))
+ (package
+ (inherit libc)
+ (name (string-append "glibc-cross-" target))
+ (arguments
+ (substitute-keyword-arguments
+ `( ;; Disable stripping (see above.)
+ #:strip-binaries? #f
+
+ ;; This package is used as a target input, but it should not have
+ ;; the usual cross-compilation inputs since that would include
+ ;; itself.
+ #:implicit-cross-inputs? #f
+
+ ;; We need SRFI 26.
+ #:modules ((guix build gnu-build-system)
+ (guix build utils)
+ (srfi srfi-26))
+
+ ,@(package-arguments libc))
+ ((#:configure-flags flags)
+ `(cons ,(string-append "--host=" target)
+ ,(if (target-hurd? target)
+ `(append (list "--disable-werror"
+ ,@%glibc/hurd-configure-flags)
+ ,flags)
+ flags)))
+ ((#:phases phases)
+ `(modify-phases ,phases
+ (add-before 'configure 'set-cross-kernel-headers-path
+ (lambda* (#:key inputs #:allow-other-keys)
+ (let* ((kernel (assoc-ref inputs "kernel-headers"))
+ (cpath (string-append kernel "/include")))
+ (for-each (cut setenv <> cpath)
+ ',%gcc-cross-include-paths)
+ (setenv "CROSS_LIBRARY_PATH"
+ (string-append kernel "/lib")) ; for Hurd's libihash
+ #t)))
+ ,@(if (target-hurd? target)
+ '((add-after 'install 'augment-libc.so
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out")))
+ (substitute* (string-append out "/lib/libc.so")
+ (("/[^ ]+/lib/libc.so.0.3")
+ (string-append out "/lib/libc.so.0.3"
+ " libmachuser.so libhurduser.so"))))
+ #t)))
+ '())))))
+
+ ;; Shadow the native "kernel-headers" because glibc's recipe expects the
+ ;; "kernel-headers" input to point to the right thing.
+ (propagated-inputs `(("kernel-headers" ,xheaders)))
+
+ (native-inputs `(("cross-gcc" ,xgcc)
+ ("cross-binutils" ,xbinutils)
+ ,@(if (target-hurd? target)
+ `(("cross-mig"
+ ,(cross-mig target
+ #:xgcc xgcc
+ #:xbinutils xbinutils)))
+ '())
+ ,@(package-inputs libc) ;FIXME: static-bash
+ ,@(package-native-inputs libc)))))
+ (else #f)))
;;; Concrete cross tool chains are instantiated like this:
@@ -460,10 +460,12 @@ (define standard-cross-packages
`(("cross-gcc" ,(gcc target
#:xbinutils (binutils target)
#:libc libc))
- ("cross-libc" ,libc)
+ ,@(if libc
+ `(("cross-libc" ,libc))
+ '())
;; MinGW's libc doesn't have a "static" output.
- ,@(if (member "static" (package-outputs libc))
+ ,@(if (and libc (member "static" (package-outputs libc)))
`(("cross-libc:static" ,libc "static"))
'()))))))))
* gnu/packages/cross-base.scm (cross-libc): Return #f if TARGET does not contain a libc implementation. This is the common case for most of the bare metal targets like aarch64-none-elf et al. Some bare-metal targets like `avr' do include AVR Libc though, but this patch allows handling that separately in the future. As glibc now only has been tested to work on Linux and GNU Hurd it makes sense to contain it only for those targets. This essentially allows to specify targets on packages like: (arguments (list #:target "aarch64-none-elf" ...)) And it should provide the implicit cross inputs packages without a libc. And opens the door for bare-metal platform definitions on GNU Guix as it'd be nice to have proper cross toolchains and package management for bare metal packages as the industry right now relies on bundling each other's dependencies to compile entire systems. * guix/build-system/gnu.scm (standard-cross-packages): Only add libc inputs if actually present as a result of returning #f on cross-libc. Do the same for the `static' output. Signed-off-by: Jean-Pierre De Jesus DIAZ <jean@foundationdevices.com> --- gnu/packages/cross-base.scm | 139 ++++++++++++++++++------------------ guix/build-system/gnu.scm | 6 +- 2 files changed, 75 insertions(+), 70 deletions(-)