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| author | Xiongwei Song <sxwjean@gmail.com> | 2021-08-07 03:02:36 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-08-26 13:21:06 +0200 |
| commit | 4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a (patch) | |
| tree | 2993bcc95e5bbccf0a2101a7c6acd861f505bfec /arch/powerpc/kernel/ptrace/ptrace.c | |
| parent | selftests: Skip TM tests on synthetic TM implementations (diff) | |
| download | linux-4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a.tar.xz linux-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/kernel/ptrace/ptrace.c')
| -rw-r--r-- | arch/powerpc/kernel/ptrace/ptrace.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c index 0a0a33eb0d28..a222fd4d6334 100644 --- a/arch/powerpc/kernel/ptrace/ptrace.c +++ b/arch/powerpc/kernel/ptrace/ptrace.c @@ -375,6 +375,8 @@ void __init pt_regs_check(void) offsetof(struct user_pt_regs, dar)); BUILD_BUG_ON(offsetof(struct pt_regs, dsisr) != offsetof(struct user_pt_regs, dsisr)); + BUILD_BUG_ON(offsetof(struct pt_regs, esr) != + offsetof(struct user_pt_regs, dsisr)); BUILD_BUG_ON(offsetof(struct pt_regs, result) != offsetof(struct user_pt_regs, result)); |