blob: 4b5f1a3294efa981d842484d93a69fb9327a4827 (
plain)
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
|
# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: cuda.eclass
# @MAINTAINER:
# Gentoo Science Project <sci@gentoo.org>
# @SUPPORTED_EAPIS: 7 8
# @BLURB: Common functions for cuda packages
# @DESCRIPTION:
# This eclass contains functions to be used with cuda package. Currently it is
# setting and/or sanitizing NVCCFLAGS, the compiler flags for nvcc. This is
# automatically done and exported in src_prepare() or manually by calling
# cuda_sanatize.
# @EXAMPLE:
# inherit cuda
case ${EAPI} in
7|8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
if [[ -z ${_CUDA_ECLASS} ]]; then
_CUDA_ECLASS=1
inherit flag-o-matic toolchain-funcs
# @ECLASS_VARIABLE: NVCCFLAGS
# @DESCRIPTION:
# nvcc compiler flags (see nvcc --help), which should be used like
# CFLAGS for c compiler
: "${NVCCFLAGS:=-O2}"
# @ECLASS_VARIABLE: CUDA_VERBOSE
# @DESCRIPTION:
# Being verbose during compilation to see underlying commands
: "${CUDA_VERBOSE:=true}"
# @FUNCTION: cuda_gccdir
# @USAGE: [-f]
# @RETURN: gcc bindir compatible with current cuda, optionally (-f) prefixed with "--compiler-bindir "
# @DESCRIPTION:
# Helper for determination of the latest gcc bindir supported by
# then current nvidia cuda toolkit.
#
# Example:
# @CODE
# cuda_gccdir -f
# -> --compiler-bindir "/usr/x86_64-pc-linux-gnu/gcc-bin/4.6.3"
# @CODE
cuda_gccdir() {
debug-print-function ${FUNCNAME} "$@"
local dirs gcc_bindir ver vers="" flag
# Currently we only support the gnu compiler suite
if ! tc-is-gcc ; then
ewarn "Currently we only support the gnu compiler suite"
return 2
fi
while [[ "$1" ]]; do
case $1 in
-f)
flag="--compiler-bindir "
;;
*)
;;
esac
shift
done
if ! vers="$(cuda-config -s)"; then
eerror "Could not execute cuda-config"
eerror "Make sure >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 is installed"
die "cuda-config not found"
fi
if [[ -z ${vers} ]]; then
die "Could not determine supported gcc versions from cuda-config"
fi
# Try the current gcc version first
ver=$(gcc-version)
if [[ -n "${ver}" ]] && [[ ${vers} =~ ${ver} ]]; then
dirs=( "${EPREFIX}"/usr/*pc-linux-gnu/gcc-bin/${ver%.*}*/ )
gcc_bindir="${dirs[${#dirs[@]}-1]}"
fi
if [[ -z ${gcc_bindir} ]]; then
ver=$(best_version "sys-devel/gcc")
ver=$(ver_cut 1-2 "${ver##*sys-devel/gcc-}")
if [[ -n "${ver}" ]] && [[ ${vers} =~ ${ver} ]]; then
dirs=( "${EPREFIX}"/usr/*pc-linux-gnu/gcc-bin/${ver%.*}*/ )
gcc_bindir="${dirs[${#dirs[@]}-1]}"
fi
fi
for ver in ${vers}; do
if has_version "=sys-devel/gcc-${ver}*"; then
dirs=( "${EPREFIX}"/usr/*pc-linux-gnu/gcc-bin/${ver%.*}*/ )
gcc_bindir="${dirs[${#dirs[@]}-1]}"
fi
done
if [[ -n ${gcc_bindir} ]]; then
if [[ -n ${flag} ]]; then
echo "${flag}\"${gcc_bindir%/}\""
else
echo "${gcc_bindir%/}"
fi
return 0
else
eerror "Only gcc version(s) ${vers} are supported,"
eerror "of which none is installed"
die "Only gcc version(s) ${vers} are supported"
return 1
fi
}
# @FUNCTION: cuda_sanitize
# @DESCRIPTION:
# Correct NVCCFLAGS by adding the necessary reference to gcc bindir and
# passing CXXFLAGS to underlying compiler without disturbing nvcc.
cuda_sanitize() {
debug-print-function ${FUNCNAME} "$@"
local rawldflags=$(raw-ldflags)
# Be verbose if wanted
[[ "${CUDA_VERBOSE}" == true ]] && NVCCFLAGS+=" -v"
# Tell nvcc where to find a compatible compiler
NVCCFLAGS+=" $(cuda_gccdir -f)"
# Tell nvcc which flags should be used for underlying C compiler
NVCCFLAGS+=" --compiler-options \"${CXXFLAGS}\" --linker-options \"${rawldflags// /,}\""
debug-print "Using ${NVCCFLAGS} for cuda"
export NVCCFLAGS
}
# @FUNCTION: cuda_add_sandbox
# @USAGE: [-w]
# @DESCRIPTION:
# Add nvidia dev nodes to the sandbox predict list.
# with -w, add to the sandbox write list.
cuda_add_sandbox() {
debug-print-function ${FUNCNAME} "$@"
local i
for i in /dev/nvidia*; do
if [[ $1 == '-w' ]]; then
addwrite $i
else
addpredict $i
fi
done
}
# @FUNCTION: cuda_toolkit_version
# @DESCRIPTION:
# echo the installed version of dev-util/nvidia-cuda-toolkit
cuda_toolkit_version() {
debug-print-function ${FUNCNAME} "$@"
local v
v="$(best_version dev-util/nvidia-cuda-toolkit)"
v="${v##*cuda-toolkit-}"
ver_cut 1-2 "${v}"
}
# @FUNCTION: cuda_cudnn_version
# @DESCRIPTION:
# echo the installed version of dev-libs/cudnn
cuda_cudnn_version() {
debug-print-function ${FUNCNAME} "$@"
local v
v="$(best_version dev-libs/cudnn)"
v="${v##*cudnn-}"
ver_cut 1-2 "${v}"
}
# @FUNCTION: cuda_src_prepare
# @DESCRIPTION:
# Sanitise and export NVCCFLAGS by default
cuda_src_prepare() {
debug-print-function ${FUNCNAME} "$@"
cuda_sanitize
}
fi
EXPORT_FUNCTIONS src_prepare
|
GitWeb