diff options
author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-12-23 13:02:52 +0100 |
---|---|---|
committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-05 11:41:29 -0800 |
commit | d4846c33ebe04d2141dcc613b5558d2f1d8077af (patch) | |
tree | e539661999b555bf68097bf561189f059a5afa9f /tests/tcg/multiarch/nop_func.h | |
parent | e630c0126c561b7db26790e8288c4fe9b61ae8dc (diff) |
tests/tcg/multiarch: add vma-pthread.c
Add a test that locklessly changes and exercises page protection bits
from various threads. This helps catch race conditions in the VMA
handling.
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20221223120252.513319-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tests/tcg/multiarch/nop_func.h')
-rw-r--r-- | tests/tcg/multiarch/nop_func.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/tcg/multiarch/nop_func.h b/tests/tcg/multiarch/nop_func.h new file mode 100644 index 0000000000..f714d21000 --- /dev/null +++ b/tests/tcg/multiarch/nop_func.h @@ -0,0 +1,25 @@ +/* + * No-op functions that can be safely copied. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#ifndef NOP_FUNC_H +#define NOP_FUNC_H + +static const char nop_func[] = { +#if defined(__aarch64__) + 0xc0, 0x03, 0x5f, 0xd6, /* ret */ +#elif defined(__alpha__) + 0x01, 0x80, 0xFA, 0x6B, /* ret */ +#elif defined(__arm__) + 0x1e, 0xff, 0x2f, 0xe1, /* bx lr */ +#elif defined(__riscv) + 0x67, 0x80, 0x00, 0x00, /* ret */ +#elif defined(__s390__) + 0x07, 0xfe, /* br %r14 */ +#elif defined(__i386__) || defined(__x86_64__) + 0xc3, /* ret */ +#endif +}; + +#endif |