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arm: Remove BreakPCEvent on guest kernel panic

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The LinuxArmSystem class normally provides support for panicing gem5
if the simulated kernel panics. When this is turned off (default),
gem5 uses a BreakPCEvent to provide a debugger hook into the simulator
when the kernel crashes. This hook unconditionally kills gem5 with a
SIGTRAP unless gem5 is compiled in fast mode. This is undesirable
since the panic_on_panic param already provides similar functionality.

Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
This commit is contained in:
Andreas Sandberg 2016-04-27 15:34:58 +01:00
parent f1575fdc4a
commit 53f58b5fc1
1 changed files with 0 additions and 4 deletions
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4
src/arch/arm/linux/system.cc
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@ -68,10 +68,6 @@ LinuxArmSystem::LinuxArmSystem(Params *p)
if (p->panic_on_panic) { if (p->panic_on_panic) {
kernelPanicEvent = addKernelFuncEventOrPanic<PanicPCEvent>( kernelPanicEvent = addKernelFuncEventOrPanic<PanicPCEvent>(
"panic", "Kernel panic in simulated kernel"); "panic", "Kernel panic in simulated kernel");
} else {
#ifndef NDEBUG
kernelPanicEvent = addKernelFuncEventOrPanic<BreakPCEvent>("panic");
#endif
} }
if (p->panic_on_oops) { if (p->panic_on_oops) {