1 | /* |
2 | * Copyright (c) 2015-2017, Intel Corporation |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are met: |
6 | * |
7 | * * Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
9 | * * Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * * Neither the name of Intel Corporation nor the names of its contributors |
13 | * may be used to endorse or promote products derived from this software |
14 | * without specific prior written permission. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | #include "config.h" |
30 | |
31 | #include "cross_compile.h" |
32 | #include "src/ue2common.h" |
33 | #include "src/hs_compile.h" |
34 | #include "src/util/make_unique.h" |
35 | |
36 | #include <sstream> |
37 | #include <string> |
38 | |
39 | using namespace std; |
40 | |
41 | struct XcompileMode { |
42 | const string name; |
43 | unsigned long long cpu_features; |
44 | }; |
45 | |
46 | static const XcompileMode xcompile_options[] = { |
47 | { "avx512" , HS_CPU_FEATURES_AVX512 }, |
48 | { "avx2" , HS_CPU_FEATURES_AVX2 }, |
49 | { "base" , 0 }, |
50 | }; |
51 | |
52 | unique_ptr<hs_platform_info> xcompileReadMode(const char *s) { |
53 | hs_platform_info rv; |
54 | UNUSED hs_error_t err; |
55 | err = hs_populate_platform(&rv); |
56 | assert(!err); |
57 | |
58 | string str(s); |
59 | string mode = str.substr(0, str.find(":" )); |
60 | string opt = str.substr(str.find(":" )+1, str.npos); |
61 | bool found_mode = false; |
62 | |
63 | if (!opt.empty()) { |
64 | for (const auto &xcompile : xcompile_options) { |
65 | if (opt == xcompile.name) { |
66 | rv.cpu_features = xcompile.cpu_features; |
67 | found_mode = true; |
68 | break; |
69 | } |
70 | } |
71 | } |
72 | |
73 | if (!found_mode) { |
74 | return nullptr; |
75 | } else { |
76 | DEBUG_PRINTF("cpu_features %llx\n" , rv.cpu_features); |
77 | return ue2::make_unique<hs_platform_info>(rv); |
78 | } |
79 | } |
80 | |
81 | string to_string(const hs_platform_info &p) { |
82 | ostringstream out; |
83 | if (p.tune) { |
84 | out << p.tune; |
85 | } |
86 | |
87 | if (p.cpu_features) { |
88 | u64a features = p.cpu_features; |
89 | if (features & HS_CPU_FEATURES_AVX512) { |
90 | out << " avx512" ; |
91 | features &= ~HS_CPU_FEATURES_AVX512; |
92 | } |
93 | |
94 | if (features & HS_CPU_FEATURES_AVX2) { |
95 | out << " avx2" ; |
96 | features &= ~HS_CPU_FEATURES_AVX2; |
97 | } |
98 | |
99 | if (features) { |
100 | out << " " << "?cpu_features?:" << features; |
101 | } |
102 | } |
103 | |
104 | return out.str(); |
105 | } |
106 | |
107 | string xcompileUsage(void) { |
108 | string variants = "Instruction set options: " ; |
109 | const auto commaspace = ", " ; |
110 | auto sep = "" ; |
111 | for (const auto &xcompile : xcompile_options) { |
112 | variants += sep + xcompile.name; |
113 | sep = commaspace; |
114 | } |
115 | return variants; |
116 | } |
117 | |