diff options
Diffstat (limited to 'src/arch/arm/linux/system.cc')
| -rw-r--r-- | src/arch/arm/linux/system.cc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/arch/arm/linux/system.cc b/src/arch/arm/linux/system.cc index 38024c058..7aff2b6ef 100644 --- a/src/arch/arm/linux/system.cc +++ b/src/arch/arm/linux/system.cc @@ -47,9 +47,11 @@ #include "base/loader/object_file.hh" #include "base/loader/symtab.hh" #include "cpu/thread_context.hh" +#include "kern/linux/events.hh" #include "mem/physical.hh" using namespace ArmISA; +using namespace Linux; LinuxArmSystem::LinuxArmSystem(Params *p) : ArmSystem(p) @@ -96,6 +98,24 @@ LinuxArmSystem::LinuxArmSystem(Params *p) if (!kernelPanicEvent) panic("could not find kernel symbol \'panic\'"); #endif + + // With ARM udelay() is #defined to __udelay + Addr addr = 0; + if (kernelSymtab->findAddress("__udelay", addr)) { + uDelaySkipEvent = new UDelayEvent(&pcEventQueue, "__udelay", + fixFuncEventAddr(addr), 1000, 0); + } else { + panic("couldn't find kernel symbol \'udelay\'"); + } + + // constant arguments to udelay() have some precomputation done ahead of + // time. Constant comes from code. + if (kernelSymtab->findAddress("__const_udelay", addr)) { + constUDelaySkipEvent = new UDelayEvent(&pcEventQueue, "__const_udelay", + fixFuncEventAddr(addr), 1000, 107374); + } else { + panic("couldn't find kernel symbol \'udelay\'"); + } } void @@ -115,6 +135,10 @@ LinuxArmSystem::initState() LinuxArmSystem::~LinuxArmSystem() { + if (uDelaySkipEvent) + delete uDelaySkipEvent; + if (constUDelaySkipEvent) + delete constUDelaySkipEvent; } LinuxArmSystem * |