1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix build compile)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:use-module (ice-9 threads)
#:use-module (system base target)
#:use-module (system base compile)
#:use-module (system base message)
#:use-module (guix modules)
#:use-module (guix build utils)
#:use-module (language tree-il optimize)
#:use-module (language cps optimize)
#:export (%default-optimizations
%lightweight-optimizations
compile-files))
;;; Commentary:
;;;
;;; Support code to compile Guile code as efficiently as possible (with 2.2).
;;;
;;; Code:
(define %default-optimizations
;; Default optimization options (equivalent to -O2 on Guile 2.2).
(append (tree-il-default-optimization-options)
(cps-default-optimization-options)))
(define %lightweight-optimizations
;; Lightweight optimizations (like -O0, but with partial evaluation).
(let loop ((opts %default-optimizations)
(result '()))
(match opts
(() (reverse result))
((#:partial-eval? _ rest ...)
(loop rest `(#t #:partial-eval? ,@result)))
((kw _ rest ...)
(loop rest `(#f ,kw ,@result))))))
(define %warnings
;; FIXME: 'format' is missing because it reports "non-literal format
;; strings" due to the fact that we use 'G_' instead of '_'. We'll need
;; help from Guile to solve this.
'(unsupported-warning unbound-variable arity-mismatch
macro-use-before-definition)) ;new in 2.2
(define (optimization-options file)
"Return the default set of optimizations options for FILE."
(if (string-contains file "gnu/packages/")
%lightweight-optimizations ;build faster
'()))
(define (scm->go file)
"Strip the \".scm\" suffix from FILE, and append \".go\"."
(string-append (string-drop-right file 4) ".go"))
(define (relative-file directory file)
"Return FILE relative to DIRECTORY, if possible."
(if (string-prefix? (string-append directory "/") file)
(string-drop file (+ 1 (string-length directory)))
file))
(define* (load-files directory files
#:key
(report-load (const #f))
(debug-port (%make-void-port "w")))
"Load FILES, a list of relative file names, from DIRECTORY."
(define total
(length files))
(let loop ((files files)
(completed 0))
(match files
(()
(unless (zero? total)
(report-load #f total completed))
*unspecified*)
((file files ...)
(let ((file (relative-file directory file)))
(report-load file total completed)
(format debug-port "~%loading '~a'...~%" file)
(resolve-interface (file-name->module-name file))
(loop files (+ 1 completed)))))))
(define-syntax-rule (with-augmented-search-path path item body ...)
"Within the dynamic extent of BODY, augment PATH by adding ITEM to the
front."
(let ((initial-value path))
(dynamic-wind
(lambda ()
(set! path (cons item path)))
(lambda ()
body ...)
(lambda ()
(set! path initial-value)))))
(define (call/exit-on-exception thunk)
"Evaluate THUNK and exit right away if an exception is thrown."
(catch #t
thunk
(const #f)
(lambda (key . args)
(false-if-exception
;; Duplicate stderr to avoid thread-safety issues.
(let* ((port (duplicate-port (current-error-port) "w0"))
(stack (make-stack #t))
(depth (stack-length stack))
(frame (and (> depth 1) (stack-ref stack 1))))
(false-if-exception (display-backtrace stack port))
(print-exception port frame key args)))
;; Don't go any further.
(primitive-exit 1))))
(define-syntax-rule (exit-on-exception exp ...)
"Evaluate EXP and exit if an exception is thrown."
(call/exit-on-exception (lambda () exp ...)))
(define* (compile-files source-directory build-directory files
#:key
(host %host-type)
(workers (current-processor-count))
(optimization-options optimization-options)
(warning-options `(#:warnings ,%warnings))
(report-load (const #f))
(report-compilation (const #f))
(debug-port (%make-void-port "w")))
"Compile FILES, a list of source files taken from SOURCE-DIRECTORY, to
BUILD-DIRECTORY, using up to WORKERS parallel workers. The resulting object
files are for HOST, a GNU triplet such as \"x86_64-linux-gnu\"."
(define progress-lock (make-mutex))
(define total (length files))
(define completed 0)
(define (build file)
(with-mutex progress-lock
(report-compilation file total completed))
;; Exit as soon as something goes wrong.
(exit-on-exception
(with-target host
(lambda ()
(let ((relative (relative-file source-directory file)))
(compile-file file
#:output-file (string-append build-directory "/"
(scm->go relative))
#:opts (append warning-options
(optimization-options relative)))))))
(with-mutex progress-lock
(set! completed (+ 1 completed))))
(with-augmented-search-path %load-path source-directory
(with-augmented-search-path %load-compiled-path build-directory
(with-fluids ((*current-warning-prefix* ""))
;; FIXME: To work around <https://bugs.gnu.org/15602>, we first load all
;; of FILES.
(load-files source-directory files
#:report-load report-load
#:debug-port debug-port)
;; Make sure compilation related modules are loaded before starting to
;; compile files in parallel.
(compile #f)
;; XXX: Don't use too many workers to work around the insane memory
;; requirements of the compiler in Guile 2.2.2:
;; <https://lists.gnu.org/archive/html/guile-devel/2017-05/msg00033.html>.
(n-par-for-each (min workers 8) build files)
(unless (zero? total)
(report-compilation #f total total))))))
(eval-when (eval load)
(when (and (string=? "2" (major-version))
(or (string=? "0" (minor-version))
(and (string=? (minor-version) "2")
(< (string->number (micro-version)) 4))))
;; Work around <https://bugs.gnu.org/31878> on Guile < 2.2.4.
;; Serialize 'try-module-autoload' calls.
(set! (@ (guile) try-module-autoload)
(let ((mutex (make-mutex 'recursive))
(real (@ (guile) try-module-autoload)))
(lambda* (module #:optional version)
(with-mutex mutex
(real module version)))))))
;;; Local Variables:
;;; eval: (put 'with-augmented-search-path 'scheme-indent-function 2)
;;; eval: (put 'with-target 'scheme-indent-function 1)
;;; End:
|