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gnu: cross-base: Externalize cross-gcc arguments.
* gnu/packages/cross-base.scm (cross-gcc-arguments): New procedure. (cross-gcc): Use it. [No functional change.]
This commit is contained in:
Ludovic Courtès
parent
0d5a559f0f
commit
cdb4b4b3ed
1 changed files with 97 additions and 93 deletions
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@ -66,6 +66,102 @@
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`(cons "--with-sysroot=/" ,flags)))))))
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(cross binutils target)))
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(define (cross-gcc-arguments target libc)
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"Return build system arguments for a cross-gcc for TARGET, using LIBC (which
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may be either a libc package or #f.)"
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(substitute-keyword-arguments (package-arguments gcc-4.8)
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((#:configure-flags flags)
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`(append (list ,(string-append "--target=" target)
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,@(gcc-configure-flags-for-triplet target)
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,@(if libc
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'()
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`(;; Disable features not needed at this stage.
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"--disable-shared" "--enable-static"
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;; Disable C++ because libstdc++'s configure
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;; script otherwise fails with "Link tests are not
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;; allowed after GCC_NO_EXECUTABLES."
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"--enable-languages=c"
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"--disable-threads" ;libgcc, would need libc
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"--disable-libatomic"
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"--disable-libmudflap"
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"--disable-libgomp"
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"--disable-libssp"
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"--disable-libquadmath"
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"--disable-decimal-float" ;would need libc
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)))
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,(if libc
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flags
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`(remove (cut string-match "--enable-languages.*" <>)
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,flags))))
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((#:make-flags flags)
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(if libc
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`(let ((libc (assoc-ref %build-inputs "libc")))
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;; FLAGS_FOR_TARGET are needed for the target libraries to receive
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;; the -Bxxx for the startfiles.
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(cons (string-append "FLAGS_FOR_TARGET=-B" libc "/lib")
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,flags))
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flags))
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((#:phases phases)
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(let ((phases
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`(alist-cons-after
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'install 'make-cross-binutils-visible
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(lambda* (#:key outputs inputs #:allow-other-keys)
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(let* ((out (assoc-ref outputs "out"))
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(libexec (string-append out "/libexec/gcc/"
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,target))
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(binutils (string-append
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(assoc-ref inputs "binutils-cross")
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"/bin/" ,target "-")))
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(for-each (lambda (file)
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(symlink (string-append binutils file)
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(string-append libexec "/"
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file)))
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'("as" "ld" "nm"))
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#t))
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,phases)))
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(if libc
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`(alist-cons-before
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'configure 'set-cross-path
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(lambda* (#:key inputs #:allow-other-keys)
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;; Add the cross Linux headers to CROSS_CPATH, and remove them
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;; from CPATH.
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(let ((libc (assoc-ref inputs "libc"))
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(linux (assoc-ref inputs
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"libc/linux-headers")))
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(define (cross? x)
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;; Return #t if X is a cross-libc or cross Linux.
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(or (string-prefix? libc x)
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(string-prefix? linux x)))
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(setenv "CROSS_CPATH"
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(string-append libc "/include:"
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linux "/include"))
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(setenv "CROSS_LIBRARY_PATH"
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(string-append libc "/lib"))
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(let ((cpath (search-path-as-string->list
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(getenv "CPATH")))
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(libpath (search-path-as-string->list
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(getenv "LIBRARY_PATH"))))
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(setenv "CPATH"
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(list->search-path-as-string
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(remove cross? cpath) ":"))
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(setenv "LIBRARY_PATH"
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(list->search-path-as-string
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(remove cross? libpath) ":"))
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#t)))
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,phases)
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phases)))
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((#:strip-binaries? _)
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;; Disable stripping as this can break binaries, with object files of
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;; libgcc.a showing up as having an unknown architecture. See
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;; <http://lists.fedoraproject.org/pipermail/arm/2010-August/000663.html>
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;; for instance.
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#f)))
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(define* (cross-gcc target
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#:optional (xbinutils (cross-binutils target)) libc)
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"Return a cross-compiler for TARGET, where TARGET is a GNU triplet. Use
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@ -92,99 +188,7 @@ GCC that does not target a libc; otherwise, target that libc."
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(srfi srfi-1)
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(srfi srfi-26))
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,@(substitute-keyword-arguments (package-arguments gcc-4.8)
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((#:configure-flags flags)
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`(append (list ,(string-append "--target=" target)
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,@(gcc-configure-flags-for-triplet target)
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,@(if libc
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'()
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`( ;; Disable features not needed at this stage.
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"--disable-shared" "--enable-static"
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;; Disable C++ because libstdc++'s
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;; configure script otherwise fails with
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;; "Link tests are not allowed after
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;; GCC_NO_EXECUTABLES."
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"--enable-languages=c"
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"--disable-threads" ; libgcc, would need libc
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"--disable-libatomic"
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"--disable-libmudflap"
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"--disable-libgomp"
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"--disable-libssp"
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"--disable-libquadmath"
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"--disable-decimal-float" ; would need libc
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)))
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,(if libc
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flags
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`(remove (cut string-match "--enable-languages.*" <>)
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,flags))))
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((#:make-flags flags)
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(if libc
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`(let ((libc (assoc-ref %build-inputs "libc")))
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;; FLAGS_FOR_TARGET are needed for the target libraries to
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;; receive the -Bxxx for the startfiles.
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(cons (string-append "FLAGS_FOR_TARGET=-B" libc "/lib")
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,flags))
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flags))
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((#:phases phases)
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(let ((phases
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`(alist-cons-after
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'install 'make-cross-binutils-visible
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(lambda* (#:key outputs inputs #:allow-other-keys)
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(let* ((out (assoc-ref outputs "out"))
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(libexec (string-append out "/libexec/gcc/"
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,target))
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(binutils (string-append
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(assoc-ref inputs "binutils-cross")
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"/bin/" ,target "-")))
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(for-each (lambda (file)
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(symlink (string-append binutils file)
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(string-append libexec "/"
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file)))
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'("as" "ld" "nm"))
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#t))
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,phases)))
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(if libc
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`(alist-cons-before
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'configure 'set-cross-path
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(lambda* (#:key inputs #:allow-other-keys)
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;; Add the cross Linux headers to CROSS_CPATH, and remove
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;; them from CPATH.
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(let ((libc (assoc-ref inputs "libc"))
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(linux (assoc-ref inputs
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"libc/linux-headers")))
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(define (cross? x)
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;; Return #t if X is a cross-libc or cross Linux.
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(or (string-prefix? libc x)
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(string-prefix? linux x)))
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(setenv "CROSS_CPATH"
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(string-append libc "/include:"
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linux "/include"))
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(setenv "CROSS_LIBRARY_PATH"
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(string-append libc "/lib"))
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(let ((cpath (search-path-as-string->list
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(getenv "CPATH")))
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(libpath (search-path-as-string->list
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(getenv "LIBRARY_PATH"))))
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(setenv "CPATH"
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(list->search-path-as-string
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(remove cross? cpath) ":"))
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(setenv "LIBRARY_PATH"
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(list->search-path-as-string
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(remove cross? libpath) ":"))
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#t)))
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,phases)
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phases)))
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((#:strip-binaries? _)
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;; Disable stripping as this can break binaries, with object files
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;; of libgcc.a showing up as having an unknown architecture. See
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;; <http://lists.fedoraproject.org/pipermail/arm/2010-August/000663.html>
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;; for instance.
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#f))))
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,@(cross-gcc-arguments target libc)))
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(native-inputs
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`(("binutils-cross" ,xbinutils)
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