diff options
Diffstat (limited to 'gdb/testsuite/gdb.arch/aarch64-mops-single-step.c')
-rw-r--r-- | gdb/testsuite/gdb.arch/aarch64-mops-single-step.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.arch/aarch64-mops-single-step.c b/gdb/testsuite/gdb.arch/aarch64-mops-single-step.c new file mode 100644 index 0000000..4a27867 --- /dev/null +++ b/gdb/testsuite/gdb.arch/aarch64-mops-single-step.c @@ -0,0 +1,73 @@ +/* This file is part of GDB, the GNU debugger. + + Copyright 2024 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#define TEST_STRING "Just a test string." +#define BUF_SIZE sizeof(TEST_STRING) + +int +main (void) +{ + char source[BUF_SIZE] = TEST_STRING; + char dest[BUF_SIZE]; + char *p, *q; + long size, zero; + + /* Note: The prfm instruction in the asm statements below is there just + to allow the testcase to recognize when the PC is at the instruction + right after the MOPS sequence. */ + + p = dest; + size = sizeof (dest); + zero = 0; + /* Break memset. */ + /* memset implemented in MOPS instructions. */ + __asm__ volatile ("setp [%0]!, %1!, %2\n\t" + "setm [%0]!, %1!, %2\n\t" + "sete [%0]!, %1!, %2\n\t" + "prfm pldl3keep, [%0, #0]\n\t" + : "+&r"(p), "+&r"(size) + : "r"(zero) + : "memory"); + + p = dest; + q = source; + size = sizeof (dest); + /* Break memcpy. */ + /* memcpy implemented in MOPS instructions. */ + __asm__ volatile ("cpyfp [%0]!, [%1]!, %2!\n\t" + "cpyfm [%0]!, [%1]!, %2!\n\t" + "cpyfe [%0]!, [%1]!, %2!\n\t" + "prfm pldl3keep, [%0, #0]\n\t" + : "+&r" (p), "+&r" (q), "+&r" (size) + : + : "memory"); + + p = dest; + q = source; + size = sizeof (dest); + /* Break memmove. */ + /* memmove implemented in MOPS instructions. */ + __asm__ volatile ("cpyp [%0]!, [%1]!, %2!\n\t" + "cpym [%0]!, [%1]!, %2!\n\t" + "cpye [%0]!, [%1]!, %2!\n\t" + "prfm pldl3keep, [%0, #0]\n\t" + : "+&r" (p), "+&r" (q), "+&r" (size) + : + : "memory"); + + return 0; +} |