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1 | /* |
2 | * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | /* | |
19 | * This program generates the semantics file that is processed by | |
20 | * the do_qemu.py script. We use the C preporcessor to manipulate the | |
21 | * files imported from the Hexagon architecture library. | |
22 | */ | |
23 | ||
24 | #include <stdio.h> | |
25 | #define STRINGIZE(X) #X | |
26 | ||
27 | int main(int argc, char *argv[]) | |
28 | { | |
29 | FILE *outfile; | |
30 | ||
31 | if (argc != 2) { | |
32 | fprintf(stderr, "Usage: gen_semantics ouptputfile\n"); | |
33 | return 1; | |
34 | } | |
35 | outfile = fopen(argv[1], "w"); | |
36 | if (outfile == NULL) { | |
37 | fprintf(stderr, "Cannot open %s for writing\n", argv[1]); | |
38 | return 1; | |
39 | } | |
40 | ||
41 | /* | |
42 | * Process the instruction definitions | |
43 | * Scalar core instructions have the following form | |
44 | * Q6INSN(A2_add,"Rd32=add(Rs32,Rt32)",ATTRIBS(), | |
45 | * "Add 32-bit registers", | |
46 | * { RdV=RsV+RtV;}) | |
47 | */ | |
48 | #define Q6INSN(TAG, BEH, ATTRIBS, DESCR, SEM) \ | |
49 | do { \ | |
50 | fprintf(outfile, "SEMANTICS( \\\n" \ | |
51 | " \"%s\", \\\n" \ | |
52 | " %s, \\\n" \ | |
53 | " \"\"\"%s\"\"\" \\\n" \ | |
54 | ")\n", \ | |
55 | #TAG, STRINGIZE(BEH), STRINGIZE(SEM)); \ | |
56 | fprintf(outfile, "ATTRIBUTES( \\\n" \ | |
57 | " \"%s\", \\\n" \ | |
58 | " \"%s\" \\\n" \ | |
59 | ")\n", \ | |
60 | #TAG, STRINGIZE(ATTRIBS)); \ | |
61 | } while (0); | |
62 | #include "imported/allidefs.def" | |
63 | #undef Q6INSN | |
64 | ||
65 | /* | |
66 | * Process the macro definitions | |
67 | * Macros definitions have the following form | |
68 | * DEF_MACRO( | |
69 | * fLSBNEW0, | |
70 | * predlog_read(thread,0), | |
71 | * () | |
72 | * ) | |
73 | * The important part here is the attributes. Whenever an instruction | |
74 | * invokes a macro, we add the macro's attributes to the instruction. | |
75 | */ | |
76 | #define DEF_MACRO(MNAME, BEH, ATTRS) \ | |
77 | fprintf(outfile, "MACROATTRIB( \\\n" \ | |
78 | " \"%s\", \\\n" \ | |
79 | " \"\"\"%s\"\"\", \\\n" \ | |
80 | " \"%s\" \\\n" \ | |
81 | ")\n", \ | |
82 | #MNAME, STRINGIZE(BEH), STRINGIZE(ATTRS)); | |
83 | #include "imported/macros.def" | |
84 | #undef DEF_MACRO | |
85 | ||
86 | fclose(outfile); | |
87 | return 0; | |
88 | } |