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| author | Jordan Niethe <jniethe5@gmail.com> | 2020-05-06 13:40:44 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-19 00:11:02 +1000 |
| commit | f77f8ff7f13e6411c2e0ba25bb7e012a5ae6c927 (patch) | |
| tree | ca1f04043b48492cef46e372f62a1a66bd66c8a3 /arch/powerpc/lib/test_code-patching.S | |
| parent | 650b55b707fdfa764e9f2b81314d3eb4216fb962 (diff) | |
| download | linux-f77f8ff7f13e6411c2e0ba25bb7e012a5ae6c927.tar.gz linux-f77f8ff7f13e6411c2e0ba25bb7e012a5ae6c927.tar.bz2 linux-f77f8ff7f13e6411c2e0ba25bb7e012a5ae6c927.zip | |
powerpc: Test prefixed code patching
Expand the code-patching self-tests to includes tests for patching
prefixed instructions.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
[mpe: Use CONFIG_PPC64 not __powerpc64__]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-25-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/lib/test_code-patching.S')
| -rw-r--r-- | arch/powerpc/lib/test_code-patching.S | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/lib/test_code-patching.S b/arch/powerpc/lib/test_code-patching.S new file mode 100644 index 000000000000..a9be6107844e --- /dev/null +++ b/arch/powerpc/lib/test_code-patching.S @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 IBM Corporation + */ +#include <asm/ppc-opcode.h> + + .text + +#define globl(x) \ + .globl x; \ +x: + +globl(code_patching_test1) + nop + nop +globl(end_code_patching_test1) + +globl(code_patching_test1_expected) + .long OP_PREFIX << 26 + .long 0x0000000 |