| Austin Schuh | dace2a6 | 2020-08-18 10:56:48 -0700 | [diff] [blame] | 1 | /* ARM32 calling conventions checking. |
| 2 | |
| 3 | Copyright 2000, 2001, 2004, 2007 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of the GNU MP Library test suite. |
| 6 | |
| 7 | The GNU MP Library test suite is free software; you can redistribute it |
| 8 | and/or modify it under the terms of the GNU General Public License as |
| 9 | published by the Free Software Foundation; either version 3 of the License, |
| 10 | or (at your option) any later version. |
| 11 | |
| 12 | The GNU MP Library test suite 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 General |
| 15 | Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License along with |
| 18 | the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */ |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include "gmp-impl.h" |
| 22 | #include "tests.h" |
| 23 | |
| 24 | |
| 25 | /* Vector if constants and register values. */ |
| 26 | mp_limb_t calling_conventions_values[29] = |
| 27 | { |
| 28 | 0x12345678, /* 0 want_r4 */ |
| 29 | 0x87654321, /* 1 want_r5 */ |
| 30 | 0x89ABCDEF, /* 2 want_r6 */ |
| 31 | 0xFEDCBA98, /* 3 want_r7 */ |
| 32 | 0xDEADBEEF, /* 4 want_r8 */ |
| 33 | 0xBADECAFE, /* 5 want_r9 */ |
| 34 | 0xFFEEDDCC, /* 6 want_r10 */ |
| 35 | 0xBBAA9988, /* 7 want_r11 */ |
| 36 | |
| 37 | 0x00000000, /* 8 save_r4 */ |
| 38 | 0x00000000, /* 9 save_r5 */ |
| 39 | 0x00000000, /* 10 save_r6 */ |
| 40 | 0x00000000, /* 11 save_r7 */ |
| 41 | 0x00000000, /* 12 save_r8 */ |
| 42 | 0x00000000, /* 13 save_r9 */ |
| 43 | 0x00000000, /* 14 save_r10 */ |
| 44 | 0x00000000, /* 15 save_r11 */ |
| 45 | 0x00000000, /* 16 save_r14 */ |
| 46 | |
| 47 | 0x00000000, /* 17 got_r4 */ |
| 48 | 0x00000000, /* 18 got_r5 */ |
| 49 | 0x00000000, /* 19 got_r6 */ |
| 50 | 0x00000000, /* 20 got_r7 */ |
| 51 | 0x00000000, /* 21 got_r8 */ |
| 52 | 0x00000000, /* 22 got_r9 */ |
| 53 | 0x00000000, /* 23 got_r10 */ |
| 54 | 0x00000000, /* 24 got_r11 */ |
| 55 | |
| 56 | 0x00112233, /* 25 junk_r0 */ |
| 57 | 0x44556677, /* 26 junk_r1 */ |
| 58 | 0x12344321, /* 27 junk_r2 */ |
| 59 | 0x56788765, /* 28 junk_r3 */ |
| 60 | }; |
| 61 | |
| 62 | /* Index starts for various regions in above vector. */ |
| 63 | #define WANT_CALLEE_SAVES 0 |
| 64 | #define SAVE_CALLEE_SAVES 8 |
| 65 | #define RETADDR 16 |
| 66 | #define GOT_CALLEE_SAVES 17 |
| 67 | #define JUNK_PARAMS 25 |
| 68 | |
| 69 | /* Return 1 if ok, 0 if not */ |
| 70 | |
| 71 | int |
| 72 | calling_conventions_check (void) |
| 73 | { |
| 74 | const char *header = "Violated calling conventions:\n"; |
| 75 | int ret = 1; |
| 76 | int i; |
| 77 | |
| 78 | #define CHECK(callreg, regnum, value) \ |
| 79 | if (callreg != value) \ |
| 80 | { \ |
| 81 | printf ("%s r%d got 0x%08lX want 0x%08lX\n", \ |
| 82 | header, regnum, callreg, value); \ |
| 83 | header = ""; \ |
| 84 | ret = 0; \ |
| 85 | } |
| 86 | |
| 87 | for (i = 0; i < 8; i++) |
| 88 | { |
| 89 | CHECK (calling_conventions_values[GOT_CALLEE_SAVES + i], |
| 90 | i + 4, |
| 91 | calling_conventions_values[WANT_CALLEE_SAVES + i]); |
| 92 | } |
| 93 | |
| 94 | return ret; |
| 95 | } |