| 1 | /* This testcase is part of GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright 2011-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #ifdef SYMBOL_PREFIX |
| 19 | #define SYMBOL(str) SYMBOL_PREFIX #str |
| 20 | #else |
| 21 | #define SYMBOL(str) #str |
| 22 | #endif |
| 23 | |
| 24 | /* FAST_TRACEPOINT_LABEL expands to an assembly instruction large enough to fit |
| 25 | a fast tracepoint jump. The parameter is the label where we'll set |
| 26 | tracepoints and breakpoints. */ |
| 27 | |
| 28 | /* Please keep gdb_trace_common_supports_arch in lib/trace-support.exp |
| 29 | in sync when adding new targets to this file. */ |
| 30 | |
| 31 | #if (defined __x86_64__ || defined __i386__) |
| 32 | |
| 33 | static void |
| 34 | x86_trace_dummy () |
| 35 | { |
| 36 | int x = 0; |
| 37 | int y = x + 4; |
| 38 | } |
| 39 | |
| 40 | #define FAST_TRACEPOINT_LABEL(name) \ |
| 41 | asm (" .global " SYMBOL(name) "\n" \ |
| 42 | SYMBOL(name) ":\n" \ |
| 43 | " call " SYMBOL(x86_trace_dummy) "\n" \ |
| 44 | ) |
| 45 | |
| 46 | #elif (defined __aarch64__) || (defined __powerpc__) |
| 47 | |
| 48 | #define FAST_TRACEPOINT_LABEL(name) \ |
| 49 | asm (" .global " SYMBOL(name) "\n" \ |
| 50 | SYMBOL(name) ":\n" \ |
| 51 | " nop\n" \ |
| 52 | ) |
| 53 | |
| 54 | #elif (defined __s390__) |
| 55 | |
| 56 | #define FAST_TRACEPOINT_LABEL(name) \ |
| 57 | asm (" .global " SYMBOL(name) "\n" \ |
| 58 | SYMBOL(name) ":\n" \ |
| 59 | " mvc 0(8, %r15), 0(%r15)\n" \ |
| 60 | ) |
| 61 | |
| 62 | #else |
| 63 | |
| 64 | #error "unsupported architecture for trace tests" |
| 65 | |
| 66 | #endif |