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ecos: stack-protection eval

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Change-Id: I576c2ef3834f61bb9017af37541afc7639672782
This commit is contained in:
Horst Schirmeier
2013-05-16 15:23:46 +02:00
parent de754c5f27
commit f3c36e70ef
3 changed files with 25 additions and 7 deletions
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8
src/experiments/ecos_kernel_test/experiment.cc
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@ -60,7 +60,7 @@ using namespace fail;
#if PREREQUISITES
bool EcosKernelTestExperiment::retrieveGuestAddresses(guest_address_t addr_finish, guest_address_t addr_data_start, guest_address_t addr_data_end) {
#if BASELINE_ASSESSMENT
#if BASELINE_ASSESSMENT || STACKPROTECTION
log << "STEP 0: creating memory map spanning all of DATA and BSS" << endl;
MemoryMap mm;
mm.add(addr_data_start, addr_data_end - addr_data_start);
@ -246,7 +246,7 @@ bool EcosKernelTestExperiment::performTrace(guest_address_t addr_entry, guest_ad
}
unsigned long long estimated_timeout_overflow_check =
simulator.getTimerTicks() - time_start + 10000;
simulator.getTimerTicks() - time_start + 55000; // 1s/18.2
unsigned estimated_timeout =
(unsigned) (estimated_timeout_overflow_check * 1000000 / simulator.getTimerTicksPerSecond());
@ -400,6 +400,10 @@ bool EcosKernelTestExperiment::faultInjection() {
bit_offset = 8; // enforce loop termination
} else if (!param.msg.has_faultmodel() || param.msg.faultmodel() == param.msg.SINGLEBITFLIP) {
newdata = data ^ (1 << bit_offset);
} else {
// Won't happen with current campaign implementation. Keeps
// compiler happy.
newdata = data;
}
mm.setByte(mem_addr, newdata);
// note at what IP we did it