diff options
Diffstat (limited to 'kern/linux')
| -rw-r--r-- | kern/linux/events.cc (renamed from kern/linux/aligned.hh) | 41 | ||||
| -rw-r--r-- | kern/linux/events.hh (renamed from kern/linux/thread_info.hh) | 27 | ||||
| -rw-r--r-- | kern/linux/hwrpb.hh | 42 | ||||
| -rw-r--r-- | kern/linux/linux_system.cc | 301 | ||||
| -rw-r--r-- | kern/linux/linux_system.hh | 151 | ||||
| -rw-r--r-- | kern/linux/linux_threadinfo.hh | 88 |
6 files changed, 42 insertions, 608 deletions
diff --git a/kern/linux/aligned.hh b/kern/linux/events.cc index 18d1b43c0..a781165ac 100644 --- a/kern/linux/aligned.hh +++ b/kern/linux/events.cc @@ -1,5 +1,5 @@ /* - * Copyright (c) 2004 The Regents of The University of Michigan + * Copyright (c) 2004-2006 The Regents of The University of Michigan * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,22 +26,29 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#ifndef __KERN_LINUX_ALIGNED_HH__ -#define __KERN_LINUX_ALIGNED_HH__ +#include "arch/arguments.hh" +#include "base/trace.hh" +#include "cpu/exec_context.hh" +#include "kern/linux/events.hh" +#include "kern/linux/printk.hh" +#include "kern/system_events.hh" -/* GCC 3.3.X has a bug in which attributes+typedefs don't work. 3.2.X is fine - * as in 3.4.X, but the bug is marked will not fix in 3.3.X so here is - * the work around. - */ -#if __GNUC__ == 3 && __GNUC_MINOR__ != 3 -typedef uint64_t uint64_ta __attribute__ ((aligned (8))) ; -typedef int64_t int64_ta __attribute__ ((aligned (8))) ; -typedef Addr Addr_a __attribute__ ((aligned (8))) ; -#else -#define uint64_ta uint64_t __attribute__ ((aligned (8))) -#define int64_ta int64_t __attribute__ ((aligned (8))) -#define Addr_a Addr __attribute__ ((aligned (8))) -#endif /* __GNUC__ __GNUC_MINOR__ */ +namespace Linux { + +void +DebugPrintkEvent::process(ExecContext *xc) +{ + if (DTRACE(DebugPrintf)) { + if (!raw) { + StringWrap name(xc->system->name() + ".dprintk"); + DPRINTFN(""); + } + + AlphaArguments args(xc); + Printk(args); + SkipFuncEvent::process(xc); + } +} -#endif /* __KERN_LINUX_ALIGNED_HH__ */ +} // namespace linux diff --git a/kern/linux/thread_info.hh b/kern/linux/events.hh index cf24ef939..95c268976 100644 --- a/kern/linux/thread_info.hh +++ b/kern/linux/events.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2005 The Regents of The University of Michigan + * Copyright (c) 2004-2006 The Regents of The University of Michigan * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,16 +26,25 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#ifndef __KERN_LINUX_THREAD_INFO_H__ -#define __KERN_LINUX_THREAD_INFO_H__ +#ifndef __KERN_LINUX_EVENTS_HH__ +#define __KERN_LINUX_EVENTS_HH__ -#include "kern/linux/hwrpb.hh" +#include "kern/system_events.hh" namespace Linux { - struct thread_info { - struct pcb_struct pcb; - Addr_a task; - }; + +class DebugPrintkEvent : public SkipFuncEvent +{ + private: + bool raw; + + public: + DebugPrintkEvent(PCEventQueue *q, const std::string &desc, Addr addr, + bool r = false) + : SkipFuncEvent(q, desc, addr), raw(r) {} + virtual void process(ExecContext *xc); +}; + } -#endif // __KERN_LINUX_THREAD_INFO_H__ +#endif diff --git a/kern/linux/hwrpb.hh b/kern/linux/hwrpb.hh deleted file mode 100644 index 4c8ac32e8..000000000 --- a/kern/linux/hwrpb.hh +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright 1990 Hewlett-Packard Development Company, L.P. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -#ifndef __KERN_LINUX_HWRPB_HH__ -#define __KERN_LINUX_HWRPB_HH__ - -#include "kern/linux/aligned.hh" - -namespace Linux { - struct pcb_struct { - uint64_ta rpb_ksp; - uint64_ta rpb_usp; - uint64_ta rpb_ptbr; - uint32_t rpb_cc; - uint32_t rpb_psn; - uint64_ta rpb_unique; - uint64_ta rpb_fen; - uint64_ta res1, res2; - }; -} -#endif // __KERN_LINUX_HWRPB_HH__ diff --git a/kern/linux/linux_system.cc b/kern/linux/linux_system.cc deleted file mode 100644 index d7ec8a327..000000000 --- a/kern/linux/linux_system.cc +++ /dev/null @@ -1,301 +0,0 @@ -/* - * Copyright (c) 2004-2005 The Regents of The University of Michigan - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * @file - * This code loads the linux kernel, console, pal and patches certain - * functions. The symbol tables are loaded so that traces can show - * the executing function and we can skip functions. Various delay - * loops are skipped and their final values manually computed to speed - * up boot time. - */ - -#include "arch/alpha/system.hh" -#include "base/loader/symtab.hh" -#include "cpu/exec_context.hh" -#include "cpu/base.hh" -#include "kern/linux/linux_system.hh" -#include "kern/linux/linux_threadinfo.hh" -#include "kern/linux/printk.hh" -#include "mem/functional/memory_control.hh" -#include "mem/functional/physical.hh" -#include "sim/builder.hh" -#include "sim/byteswap.hh" -#include "dev/platform.hh" -#include "arch/arguments.hh" -#include "arch/vtophys.hh" - -using namespace std; -using namespace TheISA; - -LinuxSystem::LinuxSystem(Params *p) - : AlphaSystem(p) -{ - Addr addr = 0; - Addr paddr = 0; - - /** - * The symbol swapper_pg_dir marks the beginning of the kernel and - * the location of bootloader passed arguments - */ - if (!kernelSymtab->findAddress("swapper_pg_dir", KernelStart)) { - panic("Could not determine start location of kernel"); - } - - /** - * Since we aren't using a bootloader, we have to copy the - * kernel arguments directly into the kernel's memory. - */ - paddr = vtophys(physmem, CommandLine()); - char *commandline = (char *)physmem->dma_addr(paddr, sizeof(uint64_t)); - if (commandline) - strncpy(commandline, params()->boot_osflags.c_str(), CommandLineSize); - - /** - * find the address of the est_cycle_freq variable and insert it - * so we don't through the lengthly process of trying to - * calculated it by using the PIT, RTC, etc. - */ - if (kernelSymtab->findAddress("est_cycle_freq", addr)) { - paddr = vtophys(physmem, addr); - uint8_t *est_cycle_frequency = - physmem->dma_addr(paddr, sizeof(uint64_t)); - - if (est_cycle_frequency) - *(uint64_t *)est_cycle_frequency = - Clock::Frequency / p->boot_cpu_frequency; - } - - - /** - * EV5 only supports 127 ASNs so we are going to tell the kernel that the - * paritiuclar EV6 we have only supports 127 asns. - * @todo At some point we should change ev5.hh and the palcode to support - * 255 ASNs. - */ - if (kernelSymtab->findAddress("dp264_mv", addr)) { - paddr = vtophys(physmem, addr); - char *dp264_mv = (char *)physmem->dma_addr(paddr, sizeof(uint64_t)); - - if (dp264_mv) { - *(uint32_t*)(dp264_mv+0x18) = LittleEndianGuest::htog((uint32_t)127); - } else - panic("could not translate dp264_mv addr\n"); - - } else - panic("could not find dp264_mv\n"); - -#ifndef NDEBUG - kernelPanicEvent = addKernelFuncEvent<BreakPCEvent>("panic"); - if (!kernelPanicEvent) - panic("could not find kernel symbol \'panic\'"); - -#if 0 - kernelDieEvent = addKernelFuncEvent<BreakPCEvent>("die_if_kernel"); - if (!kernelDieEvent) - panic("could not find kernel symbol \'die_if_kernel\'"); -#endif - -#endif - - /** - * Any time ide_delay_50ms, calibarte_delay or - * determine_cpu_caches is called just skip the - * function. Currently determine_cpu_caches only is used put - * information in proc, however if that changes in the future we - * will have to fill in the cache size variables appropriately. - */ - - skipIdeDelay50msEvent = - addKernelFuncEvent<SkipFuncEvent>("ide_delay_50ms"); - skipDelayLoopEvent = - addKernelFuncEvent<SkipDelayLoopEvent>("calibrate_delay"); - skipCacheProbeEvent = - addKernelFuncEvent<SkipFuncEvent>("determine_cpu_caches"); - debugPrintkEvent = addKernelFuncEvent<DebugPrintkEvent>("dprintk"); - idleStartEvent = addKernelFuncEvent<IdleStartEvent>("cpu_idle"); - - if (kernelSymtab->findAddress("alpha_switch_to", addr) && DTRACE(Thread)) { - printThreadEvent = new PrintThreadInfo(&pcEventQueue, "threadinfo", - addr + sizeof(MachInst) * 6); - } else { - printThreadEvent = NULL; - } - - if (params()->bin_int) { - intStartEvent = addPalFuncEvent<InterruptStartEvent>("sys_int_21"); - if (!intStartEvent) - panic("could not find symbol: sys_int_21\n"); - - intEndEvent = addPalFuncEvent<InterruptEndEvent>("rti_to_kern"); - if (!intEndEvent) - panic("could not find symbol: rti_to_kern\n"); - - intEndEvent2 = addPalFuncEvent<InterruptEndEvent>("rti_to_user"); - if (!intEndEvent2) - panic("could not find symbol: rti_to_user\n"); - - intEndEvent3 = addKernelFuncEvent<InterruptEndEvent>("do_softirq"); - if (!intEndEvent3) - panic("could not find symbol: do_softirq\n"); - } -} - -LinuxSystem::~LinuxSystem() -{ -#ifndef NDEBUG - delete kernelPanicEvent; -#endif - delete skipIdeDelay50msEvent; - delete skipDelayLoopEvent; - delete skipCacheProbeEvent; - delete debugPrintkEvent; - delete idleStartEvent; - delete printThreadEvent; - delete intStartEvent; - delete intEndEvent; - delete intEndEvent2; -} - - -void -LinuxSystem::setDelayLoop(ExecContext *xc) -{ - Addr addr = 0; - if (kernelSymtab->findAddress("loops_per_jiffy", addr)) { - Addr paddr = vtophys(physmem, addr); - - uint8_t *loops_per_jiffy = - physmem->dma_addr(paddr, sizeof(uint32_t)); - - Tick cpuFreq = xc->cpu->frequency(); - Tick intrFreq = platform->intrFrequency(); - *(uint32_t *)loops_per_jiffy = - (uint32_t)((cpuFreq / intrFreq) * 0.9988); - } -} - -void -LinuxSystem::SkipDelayLoopEvent::process(ExecContext *xc) -{ - SkipFuncEvent::process(xc); - // calculate and set loops_per_jiffy - ((LinuxSystem *)xc->system)->setDelayLoop(xc); -} - -void -LinuxSystem::DebugPrintkEvent::process(ExecContext *xc) -{ - if (DTRACE(DebugPrintf)) { - if (!raw) { - StringWrap name(xc->system->name() + ".dprintk"); - DPRINTFN(""); - } - - AlphaArguments args(xc); - Printk(args); - SkipFuncEvent::process(xc); - } -} - -void -LinuxSystem::PrintThreadInfo::process(ExecContext *xc) -{ - Linux::ThreadInfo ti(xc); - - DPRINTF(Thread, "Currently Executing Thread %s, pid %d, started at: %d\n", - ti.curTaskName(), ti.curTaskPID(), ti.curTaskStart()); -} - - -BEGIN_DECLARE_SIM_OBJECT_PARAMS(LinuxSystem) - - Param<Tick> boot_cpu_frequency; - SimObjectParam<MemoryController *> memctrl; - SimObjectParam<PhysicalMemory *> physmem; - - Param<string> kernel; - Param<string> console; - Param<string> pal; - - Param<string> boot_osflags; - Param<string> readfile; - Param<unsigned int> init_param; - - Param<uint64_t> system_type; - Param<uint64_t> system_rev; - - Param<bool> bin; - VectorParam<string> binned_fns; - Param<bool> bin_int; - -END_DECLARE_SIM_OBJECT_PARAMS(LinuxSystem) - -BEGIN_INIT_SIM_OBJECT_PARAMS(LinuxSystem) - - INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"), - INIT_PARAM(memctrl, "memory controller"), - INIT_PARAM(physmem, "phsyical memory"), - INIT_PARAM(kernel, "file that contains the kernel code"), - INIT_PARAM(console, "file that contains the console code"), - INIT_PARAM(pal, "file that contains palcode"), - INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot", - "a"), - INIT_PARAM_DFLT(readfile, "file to read startup script from", ""), - INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0), - INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34), - INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10), - INIT_PARAM_DFLT(bin, "is this system to be binned", false), - INIT_PARAM(binned_fns, "functions to be broken down and binned"), - INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true) - -END_INIT_SIM_OBJECT_PARAMS(LinuxSystem) - -CREATE_SIM_OBJECT(LinuxSystem) -{ - AlphaSystem::Params *p = new AlphaSystem::Params; - p->name = getInstanceName(); - p->boot_cpu_frequency = boot_cpu_frequency; - p->memctrl = memctrl; - p->physmem = physmem; - p->kernel_path = kernel; - p->console_path = console; - p->palcode = pal; - p->boot_osflags = boot_osflags; - p->init_param = init_param; - p->readfile = readfile; - p->system_type = system_type; - p->system_rev = system_rev; - p->bin = bin; - p->binned_fns = binned_fns; - p->bin_int = bin_int; - return new LinuxSystem(p); -} - -REGISTER_SIM_OBJECT("LinuxSystem", LinuxSystem) - diff --git a/kern/linux/linux_system.hh b/kern/linux/linux_system.hh deleted file mode 100644 index 9fecb7290..000000000 --- a/kern/linux/linux_system.hh +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Copyright (c) 2004-2005 The Regents of The University of Michigan - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __KERN_LINUX_LINUX_SYSTEM_HH__ -#define __KERN_LINUX_LINUX_SYSTEM_HH__ - -class ExecContext; - -class BreakPCEvent; -class IdleStartEvent; -class PrintThreadInfo; - -/** - * This class contains linux specific system code (Loading, Events, Binning). - * It points to objects that are the system binaries to load and patches them - * appropriately to work in simulator. - */ -class LinuxSystem : public AlphaSystem -{ - private: - class SkipDelayLoopEvent : public SkipFuncEvent - { - public: - SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr) - : SkipFuncEvent(q, desc, addr) {} - virtual void process(ExecContext *xc); - }; - - class DebugPrintkEvent : public SkipFuncEvent - { - private: - bool raw; - - public: - DebugPrintkEvent(PCEventQueue *q, const std::string &desc, Addr addr, - bool r = false) - : SkipFuncEvent(q, desc, addr), raw(r) {} - virtual void process(ExecContext *xc); - }; - - class PrintThreadInfo : public PCEvent - { - public: - PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr) - : PCEvent(q, desc, addr) {} - virtual void process(ExecContext *xc); - }; - - /** - * Addresses defining where the kernel bootloader places various - * elements. Details found in include/asm-alpha/system.h - */ - Addr KernelStart; // Lookup the symbol swapper_pg_dir - - public: - Addr InitStack() const { return KernelStart + 0x02000; } - Addr EmptyPGT() const { return KernelStart + 0x04000; } - Addr EmptyPGE() const { return KernelStart + 0x08000; } - Addr ZeroPGE() const { return KernelStart + 0x0A000; } - Addr StartAddr() const { return KernelStart + 0x10000; } - - Addr Param() const { return ZeroPGE() + 0x0; } - Addr CommandLine() const { return Param() + 0x0; } - Addr InitrdStart() const { return Param() + 0x100; } - Addr InitrdSize() const { return Param() + 0x108; } - static const int CommandLineSize = 256; - - private: -#ifndef NDEBUG - /** Event to halt the simulator if the kernel calls panic() */ - BreakPCEvent *kernelPanicEvent; - - /** Event to halt the simulator if the kernel calls die_if_kernel */ - BreakPCEvent *kernelDieEvent; -#endif - - /** - * Event to skip determine_cpu_caches() because we don't support - * the IPRs that the code can access to figure out cache sizes - */ - SkipFuncEvent *skipCacheProbeEvent; - - /** PC based event to skip the ide_delay_50ms() call */ - SkipFuncEvent *skipIdeDelay50msEvent; - - /** - * PC based event to skip the dprink() call and emulate its - * functionality - */ - DebugPrintkEvent *debugPrintkEvent; - - /** - * Skip calculate_delay_loop() rather than waiting for this to be - * calculated - */ - SkipDelayLoopEvent *skipDelayLoopEvent; - - /** - * Event to print information about thread switches if the trace flag - * Thread is set - */ - PrintThreadInfo *printThreadEvent; - - /** - * Event to bin Interrupts seperately from kernel code - */ - InterruptStartEvent *intStartEvent; - - /** - * Event to bin Interrupts seperately from kernel code - */ - InterruptEndEvent *intEndEvent; - InterruptEndEvent *intEndEvent2; - InterruptEndEvent *intEndEvent3; - - /** Grab the PCBB of the idle process when it starts */ - IdleStartEvent *idleStartEvent; - - public: - LinuxSystem(Params *p); - ~LinuxSystem(); - - void setDelayLoop(ExecContext *xc); -}; - -#endif // __KERN_LINUX_LINUX_SYSTEM_HH__ diff --git a/kern/linux/linux_threadinfo.hh b/kern/linux/linux_threadinfo.hh deleted file mode 100644 index a1c378d6a..000000000 --- a/kern/linux/linux_threadinfo.hh +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (c) 2004 The Regents of The University of Michigan - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __KERN_LINUX_LINUX_TREADNIFO_HH__ -#define __KERN_LINUX_LINUX_TREADNIFO_HH__ - -#include "kern/linux/thread_info.hh" -#include "kern/linux/sched.hh" -#include "sim/vptr.hh" - -namespace Linux { - -class ThreadInfo -{ - private: - ExecContext *xc; - - public: - ThreadInfo(ExecContext *exec) : xc(exec) {} - ~ThreadInfo() {} - - inline VPtr<thread_info> - curThreadInfo() - { - Addr current; - - /* Each kernel stack is only 2 pages, the start of which is the - * thread_info struct. So we can get the address by masking off - * the lower 14 bits. - */ - current = xc->regs.intRegFile[TheISA::StackPointerReg] & ~0x3fff; - return VPtr<thread_info>(xc, current); - } - - inline VPtr<task_struct> - curTaskInfo() - { - Addr task = curThreadInfo()->task; - return VPtr<task_struct>(xc, task); - } - - std::string - curTaskName() - { - return curTaskInfo()->name; - } - - int32_t - curTaskPID() - { - return curTaskInfo()->pid; - } - - uint64_t - curTaskStart() - { - return curTaskInfo()->start; - } -}; - -/* namespace Linux */ } - -#endif // __KERN_LINUX_LINUX_THREADINFO_HH__ |