db30144b5c
The pt_regs.trap field keeps 4 low bits for some metadata about the trap or how it was handled, which is masked off in order to test the architectural trap number. Add a set_trap() accessor to set this, equivalent to TRAP() for returning it. This is actually not quite the equivalent of TRAP() because it always clears the low bits, which may be harmless if it can only be updated via ptrace syscall, but it seems dangerous. In fact settting TRAP from ptrace doesn't seem like a great idea so maybe it's better deleted. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Make it a static inline rather than a shouty macro] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200507121332.2233629-2-mpe@ellerman.id.au |
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| .. | ||
| Makefile | ||
| ptrace32.c | ||
| ptrace-adv.c | ||
| ptrace-altivec.c | ||
| ptrace-decl.h | ||
| ptrace-noadv.c | ||
| ptrace-novsx.c | ||
| ptrace-spe.c | ||
| ptrace-tm.c | ||
| ptrace-view.c | ||
| ptrace-vsx.c | ||
| ptrace.c | ||