powerpc: Call tracehook_signal_handler() when setting up signal frames

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This makes the powerpc signal handling code call tracehook_signal_handler()
after a handler is set up.  This means that using PTRACE_SINGLESTEP to
enter a signal handler will report to ptrace on the first instruction of
the handler, instead of the second.  This is consistent with what x86 and
other machines do, and what users and debuggers want.

BenH: Fixed up the test for the trap value.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Roland McGrath 2008-07-27 16:49:50 +10:00 • committed by Benjamin Herrenschmidt

parent e2075f79a9

commit 6558ba2b5c

1 changed files with 7 additions and 1 deletions

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arch/powerpc/kernel/signal.c

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