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| author |   Xiongwei Song <sxwjean@gmail.com> | 2021-08-07 09:02:36 +0800 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-08-26 21:21:06 +1000 |
| commit | 4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a (patch) | |
| tree | 2993bcc95e5bbccf0a2101a7c6acd861f505bfec /arch/powerpc/include/asm/ptrace.h | |
| parent | selftests: Skip TM tests on synthetic TM implementations (diff) | |
| download | linux-dev-4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a.tar.xz linux-dev-4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a.zip | |
powerpc: Add esr as a synonym for pt_regs.dsisr
Create an anonymous union for dsisr and esr regsiters, we can reference
esr to get the exception detail when CONFIG_4xx=y or CONFIG_BOOKE=y.
Otherwise, reference dsisr. This makes code more clear.
Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
[mpe: Reword commit title]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210807010239.416055-2-sxwjean@me.com
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 333979cf5d1e..ab58939653db 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -44,7 +44,10 @@ struct pt_regs #endif unsigned long trap; unsigned long dar; - unsigned long dsisr; + union { + unsigned long dsisr; + unsigned long esr; + }; unsigned long result; }; }; |