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utils: Define a target-x86-32? and target-x86-64? predicate.

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* guix/utils.scm (target-x86-32?, target-x86-64?): New predicates.
* tests/utils.scm ("target-x86-32?", "target-x86-64?"): New tests.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
This commit is contained in:
Maxime Devos 2021-07-14 13:12:49 +02:00 committed by Mark H Weaver
parent b96ae47bb0
commit b0519cc4b0
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20
guix/utils.scm
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@ -79,6 +79,8 @@ (define-module (guix utils)
%current-target-system
package-name->name+version
target-mingw?
target-x86-32?
target-x86-64?
target-arm32?
target-aarch64?
target-arm?
@ -535,6 +537,24 @@ (define* (target-mingw? #:optional (target (%current-target-system)))
(and target
(string-suffix? "-mingw32" target)))
(define* (target-x86-32? #:optional (target (or (%current-target-system)
(%current-system))))
"Is the architecture of TARGET a variant of Intel's 32-bit architecture
(IA32)?"
;; Intel also has a 16-bit architecture in the iN86 series, i286
;; (see, e.g. https://en.wikipedia.org/wiki/Intel/808286) so this
;; procedure is not named target-x86?.
(or (string-prefix? "i386-" target)
(string-prefix? "i486-" target)
(string-prefix? "i586-" target)
(string-prefix? "i686-" target)))
(define* (target-x86-64? #:optional (target (or (%current-target-system)
(%current-system))))
"Is the architecture of TARGET a variant of Intel/AMD's 64-bit
architecture (x86_64)?"
(string-prefix? "x86_64-" target))
(define* (target-arm32? #:optional (target (or (%current-target-system)
(%current-system))))
(string-prefix? "arm" target))

23
tests/utils.scm
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@ -289,6 +289,29 @@ (define (test-compression/decompression method run?)
(string-closest "hello" '("kikoo" "helo" "hihihi" "halo"))
(string-closest "hello" '("aaaaa" "12345" "hellohello" "h"))))
(test-equal "target-x86-32?"
'(#f #f #f #t #t #t #t #f)
;; These are (according to Wikipedia) two RISC architectures
;; by Intel and presumably not compatible with the x86-32 series.
(map target-x86-32?
'("i860-gnu" "i960-gnu"
;; This is a 16-bit architecture
"i286-gnu"
;; These are part of the x86-32 series.
"i386-gnu" "i486-gnu" "i586-gnu" "i686-gnu"
;; Maybe this one will exist some day, but not yet.
"i786-gnu")))
(test-equal "target-x86-64?"
'(#t #f #f #f)
(map target-x86-64?
`("x86_64-linux-gnu" "i386-linux-gnu"
;; Just because it includes "64" doesn't make it 64-bit.
"aarch64-linux-gnu"
;; Note that (expt 2 109) in decimal notation starts with 64.
;; However, it isn't 32-bit.
,(format #f "x86_~a-linux-gnu" (expt 2 109)))))
(test-end)
(false-if-exception (delete-file temp-file))