diff options
| author | Xiongwei Song <sxwjean@gmail.com> | 2021-08-07 09:02:38 +0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-08-26 21:21:07 +1000 |
| commit | 4872cbd0ca35ca5b20d52e2539e7e1950f126e7b (patch) | |
| tree | 29c33ca9887a0c182c0c0a5c1e1e2f6c03375884 /arch/powerpc/kernel/ptrace | |
| parent | cfa47772ca8d53d7a6c9b331a7f6e7c4c9827214 (diff) | |
powerpc: Add dear as a synonym for pt_regs.dar register
Create an anonymous union for dar and dear regsiters, we can reference
dear to get the effective address when CONFIG_4xx=y or CONFIG_BOOKE=y.
Otherwise, reference dar. 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/20210807010239.416055-4-sxwjean@me.com
Diffstat (limited to 'arch/powerpc/kernel/ptrace')
| -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 a222fd4d6334..7c7093c17c45 100644 --- a/arch/powerpc/kernel/ptrace/ptrace.c +++ b/arch/powerpc/kernel/ptrace/ptrace.c @@ -373,6 +373,8 @@ void __init pt_regs_check(void) offsetof(struct user_pt_regs, trap)); BUILD_BUG_ON(offsetof(struct pt_regs, dar) != offsetof(struct user_pt_regs, dar)); + BUILD_BUG_ON(offsetof(struct pt_regs, dear) != + 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) != |