powerpc: copy_thread fill in interrupt frame marker and back chain

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Backtraces will not recognise the fork system call interrupt without
the regs marker. And regular interrupt entry from userspace creates
the back chain to the user stack, so do this for the initial fork
frame too, to be consistent.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221127124942.1665522-13-npiggin@gmail.com

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Nicholas Piggin 2022-11-27 22:49:37 +10:00 • committed by Michael Ellerman

parent 6f291a0381

commit 6895dfc047

1 changed files with 3 additions and 1 deletions

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arch/powerpc/kernel/process.c

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