| 1 | // justsyms_exec.c -- test --just-symbols for gold |
| 2 | |
| 3 | // Copyright (C) 2011-2020 Free Software Foundation, Inc. |
| 4 | // Written by Cary Coutant <ccoutant@google.com>. |
| 5 | |
| 6 | // This file is part of gold. |
| 7 | |
| 8 | // This program is free software; you can redistribute it and/or modify |
| 9 | // it under the terms of the GNU General Public License as published by |
| 10 | // the Free Software Foundation; either version 3 of the License, or |
| 11 | // (at your option) any later version. |
| 12 | |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | // MA 02110-1301, USA. |
| 22 | |
| 23 | // The Linux kernel builds an executable file using a linker script, and |
| 24 | // then links against that object file using the -R option. This is a |
| 25 | // test for that usage. |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | |
| 29 | extern int exported_func(void); |
| 30 | |
| 31 | extern int exported_data; |
| 32 | |
| 33 | static int errs = 0; |
| 34 | |
| 35 | void check(void *sym, long v, const char *name); |
| 36 | |
| 37 | void |
| 38 | check(void *sym, long v, const char *name) |
| 39 | { |
| 40 | if (sym != (void *)v) |
| 41 | { |
| 42 | fprintf(stderr, "&%s is %8p, expected %08lx\n", name, sym, v); |
| 43 | errs++; |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | int |
| 48 | main(void) |
| 49 | { |
| 50 | #if !defined (__powerpc64__) || (defined (_CALL_ELF) && _CALL_ELF == 2) |
| 51 | /* PowerPC64 ELFv1 uses function descriptors. */ |
| 52 | check(exported_func, 0x1000200, "exported_func"); |
| 53 | #endif |
| 54 | check(&exported_data, 0x2000000, "exported_data"); |
| 55 | return errs; |
| 56 | } |