projects / OpenSPARC-T2-SAM / blame
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1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== | |
| 3 | * | |
| 4 | * OpenSPARC T2 Processor File: vercheck.c | |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
| 7 | * | |
| 8 | * The above named program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public | |
| 10 | * License version 2 as published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * The above named program is distributed in the hope that it will be | |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public | |
| 18 | * License along with this work; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 20 | * | |
| 21 | * ========== Copyright Header End ============================================ | |
| 22 | */ | |
| 23 | // | |
| 24 | // ANSI C file: vercheck.c | |
| 25 | // R. W. Quong Aug 6 2001 | |
| 26 | // | |
| 27 | ||
| 28 | #include <stdlib.h> // atof() | |
| 29 | #include <stdio.h> // fopen(), stderr | |
| 30 | #include "vercheck.h" | |
| 31 | ||
| 32 | // get the index in equivTab | |
| 33 | int verIndex (double ver, double equivTab [][3] ) { | |
| 34 | int i = 0; | |
| 35 | for (i=0; i>=0; i++) { // rely on breaking out of loop | |
| 36 | double (*dp)[3] = &equivTab[i]; | |
| 37 | if ((*dp)[0] <= ver && ver < (*dp)[1]) { | |
| 38 | return i; | |
| 39 | } | |
| 40 | if ((*dp)[0] < 0 || (*dp)[1] < 0) { | |
| 41 | return -1; | |
| 42 | } | |
| 43 | ||
| 44 | // version numbers greater than 4000 are extremely likely | |
| 45 | if ((*dp)[0] > 4000 || (*dp)[1] > 4000) { | |
| 46 | return -1; | |
| 47 | } | |
| 48 | } | |
| 49 | return -1; | |
| 50 | } | |
| 51 | ||
| 52 | // compare version strings, by converting them to doubles via atof() | |
| 53 | // compare compile version CT_STR with runtime version RT_STR using | |
| 54 | // version comparison table VT. | |
| 55 | // If problems, use modname XYZ in the error/warning messages. | |
| 56 | static int generic_verCheck ( | |
| 57 | const char* ct_str, const char* rt_str, double vt[][3] , const char* modname | |
| 58 | ) { | |
| 59 | double ct_ver = atof(ct_str); | |
| 60 | double rt_ver = atof(rt_str); | |
| 61 | return ver_check_dbl(ct_ver, rt_ver, vt, modname); | |
| 62 | } /* generic_verCheck */ | |
| 63 | ||
| 64 | static int ver_check_dbl ( | |
| 65 | double ct_ver, double rt_ver, double vt[][3], const char* modname | |
| 66 | ) { | |
| 67 | int rtidx = verIndex(rt_ver, vt); // index into vt | |
| 68 | int ctidx = verIndex(ct_ver, vt); // index into vt | |
| 69 | ||
| 70 | if (rtidx == -1) { | |
| 71 | fprintf(stderr, "Warning: pkg=%s version %f cannot find entry\n", | |
| 72 | modname, rt_ver); | |
| 73 | } | |
| 74 | if (ctidx == -1) { | |
| 75 | fprintf(stderr, "Warning: pkg=%s version %f cannot find entry\n", | |
| 76 | modname, ct_ver); | |
| 77 | } | |
| 78 | ||
| 79 | if (rtidx == ctidx) { | |
| 80 | return VERCHECK_MATCH; | |
| 81 | } else { | |
| 82 | int rtMajor = vt[rtidx][2]; | |
| 83 | int ctMajor = vt[ctidx][2]; | |
| 84 | if (rtMajor == ctMajor) { | |
| 85 | fprintf(stderr, | |
| 86 | "Warning: pkg=%s version mismatch: compiled-against=%6.3f got=%6.3f\n", | |
| 87 | modname, ct_ver, rt_ver); | |
| 88 | return VERCHECK_SEMIMATCH; | |
| 89 | } else { | |
| 90 | fprintf(stderr, | |
| 91 | "ERROR: %s version mismatch: compiled-against=%6.3f got=%6.3f\n", | |
| 92 | modname, ct_ver, rt_ver); | |
| 93 | return VERCHECK_MISMATCH; | |
| 94 | } | |
| 95 | } | |
| 96 | } /* ver_check_dbl */ | |
| 97 | ||
| 98 |