diff options
Diffstat (limited to 'src/sim')
| -rw-r--r-- | src/sim/SConscript | 1 | ||||
| -rw-r--r-- | src/sim/aux_vector.cc | 77 | ||||
| -rw-r--r-- | src/sim/aux_vector.hh | 77 | ||||
| -rw-r--r-- | src/sim/process.cc | 34 | ||||
| -rw-r--r-- | src/sim/process.hh | 259 |
5 files changed, 258 insertions, 190 deletions
diff --git a/src/sim/SConscript b/src/sim/SConscript index 7fec029f1..6b0b8430b 100644 --- a/src/sim/SConscript +++ b/src/sim/SConscript @@ -75,6 +75,7 @@ Source('mathexpr.cc') if env['TARGET_ISA'] != 'null': SimObject('InstTracer.py') SimObject('Process.py') + Source('aux_vector.cc') Source('faults.cc') Source('process.cc') Source('fd_entry.cc') diff --git a/src/sim/aux_vector.cc b/src/sim/aux_vector.cc new file mode 100644 index 000000000..a16573e23 --- /dev/null +++ b/src/sim/aux_vector.cc @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2016 Advanced Micro Devices, Inc. + * All rights reserved. + * + * For use for simulation and test purposes only + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. 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. + * + * 3. Neither the name of the copyright holder 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 HOLDER 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. + * + * Author: Brandon Potter + */ + +#include "sim/aux_vector.hh" + +#include <inttypes.h> + +#include "config/the_isa.hh" + +#if THE_ISA == ALPHA_ISA +#include "arch/alpha/linux/process.hh" + +#elif THE_ISA == SPARC_ISA +#include "arch/sparc/linux/process.hh" +#include "arch/sparc/solaris/process.hh" + +#elif THE_ISA == MIPS_ISA +#include "arch/mips/linux/process.hh" + +#elif THE_ISA == ARM_ISA +#include "arch/arm/freebsd/process.hh" +#include "arch/arm/linux/process.hh" + +#elif THE_ISA == X86_ISA +#include "arch/x86/linux/process.hh" + +#elif THE_ISA == RISCV_ISA +#include "arch/riscv/linux/process.hh" + +#elif THE_ISA == POWER_ISA +#include "arch/power/linux/process.hh" + +#else +#error "THE_ISA not set" +#endif + +template<class IntType> +AuxVector<IntType>::AuxVector(IntType type, IntType val) +{ + a_type = TheISA::htog(type); + a_val = TheISA::htog(val); +} + +template struct AuxVector<uint32_t>; +template struct AuxVector<uint64_t>; diff --git a/src/sim/aux_vector.hh b/src/sim/aux_vector.hh new file mode 100644 index 000000000..e6569ae9b --- /dev/null +++ b/src/sim/aux_vector.hh @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2016 Advanced Micro Devices, Inc. + * All rights reserved. + * + * For use for simulation and test purposes only + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. 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. + * + * 3. Neither the name of the copyright holder 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 HOLDER 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. + * + * Author: Brandon Potter + */ + +#ifndef __AUX_VECTOR_HH__ +#define __AUX_VECTOR_HH__ + +template<class IntType> +struct AuxVector +{ + IntType a_type; + IntType a_val; + + AuxVector() + {} + + AuxVector(IntType type, IntType val); +}; + +enum AuxiliaryVectorType { + M5_AT_NULL = 0, + M5_AT_IGNORE = 1, + M5_AT_EXECFD = 2, + M5_AT_PHDR = 3, + M5_AT_PHENT = 4, + M5_AT_PHNUM = 5, + M5_AT_PAGESZ = 6, + M5_AT_BASE = 7, + M5_AT_FLAGS = 8, + M5_AT_ENTRY = 9, + M5_AT_NOTELF = 10, + M5_AT_UID = 11, + M5_AT_EUID = 12, + M5_AT_GID = 13, + M5_AT_EGID = 14, + M5_AT_PLATFORM = 15, + M5_AT_HWCAP = 16, + M5_AT_CLKTCK = 17, + M5_AT_SECURE = 23, + M5_BASE_PLATFORM = 24, + M5_AT_RANDOM = 25, + M5_AT_EXECFN = 31, + M5_AT_VECTOR_SIZE = 44 +}; + +#endif // __AUX_VECTOR_HH__ diff --git a/src/sim/process.cc b/src/sim/process.cc index bcb9b582f..50ebc9cec 100644 --- a/src/sim/process.cc +++ b/src/sim/process.cc @@ -93,17 +93,6 @@ using namespace TheISA; // current number of allocated processes int num_processes = 0; -template<class IntType> - -AuxVector<IntType>::AuxVector(IntType type, IntType val) -{ - a_type = TheISA::htog(type); - a_val = TheISA::htog(val); -} - -template struct AuxVector<uint32_t>; -template struct AuxVector<uint64_t>; - static int openFile(const string& filename, int flags, mode_t mode) { @@ -205,7 +194,6 @@ Process::Process(ProcessParams * params, ObjectFile * obj_file) } } - void Process::regStats() { @@ -497,7 +485,6 @@ Process::unserialize(CheckpointIn &cp) // found. } - bool Process::map(Addr vaddr, Addr paddr, int size, bool cacheable) { @@ -506,7 +493,6 @@ Process::map(Addr vaddr, Addr paddr, int size, bool cacheable) return true; } - void Process::syscall(int64_t callnum, ThreadContext *tc) { @@ -525,7 +511,6 @@ Process::getSyscallArg(ThreadContext *tc, int &i, int width) return getSyscallArg(tc, i); } - EmulatedDriver * Process::findDriver(std::string filename) { @@ -561,14 +546,12 @@ Process::updateBias() interp->updateBias(ld_bias); } - ObjectFile * Process::getInterpreter() { return objFile->getInterpreter(); } - Addr Process::getBias() { @@ -577,7 +560,6 @@ Process::getBias() return interp ? interp->bias() : objFile->bias(); } - Addr Process::getStartPC() { @@ -586,7 +568,6 @@ Process::getStartPC() return interp ? interp->entryPoint() : objFile->entryPoint(); } - Process * ProcessParams::create() { @@ -634,7 +615,6 @@ ProcessParams::create() } break; - case ObjectFile::Solaris: process = new SparcSolarisProcess(this, obj_file); break; @@ -743,3 +723,17 @@ ProcessParams::create() fatal("Unknown error creating process object."); return process; } + +std::string +Process::fullPath(const std::string &file_name) +{ + if (file_name[0] == '/' || cwd.empty()) + return file_name; + + std::string full = cwd; + + if (cwd[cwd.size() - 1] != '/') + full += '/'; + + return full + file_name; +} diff --git a/src/sim/process.hh b/src/sim/process.hh index f3d0f1b62..dde131628 100644 --- a/src/sim/process.hh +++ b/src/sim/process.hh @@ -33,6 +33,8 @@ #ifndef __PROCESS_HH__ #define __PROCESS_HH__ +#include <inttypes.h> + #include <array> #include <map> #include <string> @@ -56,30 +58,9 @@ class SyscallReturn; class System; class ThreadContext; -template<class IntType> -struct AuxVector -{ - IntType a_type; - IntType a_val; - - AuxVector() - {} - - AuxVector(IntType type, IntType val); -}; - class Process : public SimObject { public: - - /// Pointer to object representing the system this process is - /// running on. - System *system; - - // thread contexts associated with this process - std::vector<ContextID> contextIds; - - // record of blocked context struct WaitRec { Addr waitChan; @@ -87,82 +68,59 @@ class Process : public SimObject WaitRec(Addr chan, ThreadContext *ctx) : waitChan(chan), waitingContext(ctx) - { } + { } }; - // list of all blocked contexts - std::list<WaitRec> waitList; - - Addr brk_point; // top of the data segment - - Addr stack_base; // stack segment base (highest address) - unsigned stack_size; // initial stack size - Addr stack_min; // lowest address accessed on the stack - - // The maximum size allowed for the stack. - Addr max_stack_size; - - // addr to use for next stack region (for multithreaded apps) - Addr next_thread_stack_base; - - // Base of region for mmaps (when user doesn't specify an address). - Addr mmap_end; - - // Does mmap region grow upward or downward from mmap_end? Most - // platforms grow downward, but a few (such as Alpha) grow upward - // instead, so they can override thie method to return false. - virtual bool mmapGrowsDown() const { return true; } - - Stats::Scalar num_syscalls; // number of syscalls executed + Process(ProcessParams *params, ObjectFile *obj_file); - protected: - // constructor - Process(ProcessParams *params); + void serialize(CheckpointOut &cp) const override; + void unserialize(CheckpointIn &cp) override; void initState() override; - DrainState drain() override; - public: - - // flag for using architecture specific page table - bool useArchPT; - // running KvmCPU in SE mode requires special initialization - bool kvmInSE; - - PageTableBase* pTable; + void syscall(int64_t callnum, ThreadContext *tc); + virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i) = 0; + virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); + virtual void setSyscallArg(ThreadContext *tc, int i, + TheISA::IntReg val) = 0; + virtual void setSyscallReturn(ThreadContext *tc, + SyscallReturn return_value) = 0; + virtual SyscallDesc *getDesc(int callnum) = 0; - protected: - /// Memory proxy for initialization (image loading) - SETranslatingPortProxy initVirtMem; + inline uint64_t uid() { return _uid; } + inline uint64_t euid() { return _euid; } + inline uint64_t gid() { return _gid; } + inline uint64_t egid() { return _egid; } + inline uint64_t pid() { return _pid; } + inline uint64_t ppid() { return _ppid; } - private: - static const int NUM_FDS = 1024; + const char *progName() const { return executable.c_str(); } + std::string fullPath(const std::string &filename); + std::string getcwd() const { return cwd; } - // File descriptor remapping support. - std::shared_ptr<std::array<FDEntry, NUM_FDS>> fd_array; + /** + * Find an emulated device driver. + * + * @param filename Name of the device (under /dev) + * @return Pointer to driver object if found, else NULL + */ + EmulatedDriver *findDriver(std::string filename); - // Standard file descriptor options for initialization and checkpoints. - std::map<std::string, int> imap; - std::map<std::string, int> oemap; + // This function acts as a callback to update the bias value in + // the object file because the parameters needed to calculate the + // bias are not available when the object file is created. + void updateBias(); + Addr getBias(); + Addr getStartPC(); + ObjectFile *getInterpreter(); - public: // inherit file descriptor map from another process (necessary for clone) void inheritFDArray(Process *p); // override of virtual SimObject method: register statistics void regStats() override; - // After getting registered with system object, tell process which - // system-wide context id it is assigned. - void assignThreadContext(ContextID context_id) - { - contextIds.push_back(context_id); - } - - // Find a free context to use - ThreadContext *findFreeContext(); - // generate new target fd for sim_fd int allocFD(int sim_fd, const std::string& filename, int flags, int mode, bool pipe); @@ -199,6 +157,24 @@ class Process : public SimObject /// @return Whether the fault has been fixed. bool fixupStackFault(Addr vaddr); + // After getting registered with system object, tell process which + // system-wide context id it is assigned. + void + assignThreadContext(ContextID context_id) + { + contextIds.push_back(context_id); + } + + // Find a free context to use + ThreadContext *findFreeContext(); + + /** + * Does mmap region grow upward or downward from mmap_end? Most + * platforms grow downward, but a few (such as Alpha) grow upward + * instead, so they can override this method to return false. + */ + virtual bool mmapGrowsDown() const { return true; } + /** * Maps a contiguous range of virtual addresses in this process's * address space to a contiguous range of physical addresses. @@ -214,19 +190,47 @@ class Process : public SimObject */ bool map(Addr vaddr, Addr paddr, int size, bool cacheable = true); - void serialize(CheckpointOut &cp) const override; - void unserialize(CheckpointIn &cp) override; + // list of all blocked contexts + std::list<WaitRec> waitList; + + // thread contexts associated with this process + std::vector<ContextID> contextIds; + + // system object which owns this process + System *system; + + Addr brk_point; // top of the data segment + Addr stack_base; // stack segment base + unsigned stack_size; // initial stack size + Addr stack_min; // furthest address accessed from stack base + Addr max_stack_size; // the maximum size allowed for the stack + Addr next_thread_stack_base; // addr for next region w/ multithreaded apps + Addr mmap_end; // base of automatic mmap region allocs + + Stats::Scalar num_syscalls; // track how many system calls are executed + + bool useArchPT; // flag for using architecture specific page table + bool kvmInSE; // running KVM requires special initialization + + PageTableBase* pTable; + + SETranslatingPortProxy initVirtMem; // memory proxy for initial image load + + static const int NUM_FDS = 1024; + + // File descriptor remapping support. + std::shared_ptr<std::array<FDEntry, NUM_FDS>> fd_array; + + // Standard file descriptor options for initialization and checkpoints. + std::map<std::string, int> imap; + std::map<std::string, int> oemap; - protected: ObjectFile *objFile; std::vector<std::string> argv; std::vector<std::string> envp; std::string cwd; std::string executable; - Process(ProcessParams *params, ObjectFile *obj_file); - - public: // Id of the owner of the process uint64_t _uid; uint64_t _euid; @@ -239,91 +243,6 @@ class Process : public SimObject // Emulated drivers available to this process std::vector<EmulatedDriver *> drivers; - - enum AuxiliaryVectorType { - M5_AT_NULL = 0, - M5_AT_IGNORE = 1, - M5_AT_EXECFD = 2, - M5_AT_PHDR = 3, - M5_AT_PHENT = 4, - M5_AT_PHNUM = 5, - M5_AT_PAGESZ = 6, - M5_AT_BASE = 7, - M5_AT_FLAGS = 8, - M5_AT_ENTRY = 9, - M5_AT_NOTELF = 10, - M5_AT_UID = 11, - M5_AT_EUID = 12, - M5_AT_GID = 13, - M5_AT_EGID = 14, - // The following may be specific to Linux - M5_AT_PLATFORM = 15, - M5_AT_HWCAP = 16, - M5_AT_CLKTCK = 17, - - M5_AT_SECURE = 23, - M5_BASE_PLATFORM = 24, - M5_AT_RANDOM = 25, - - M5_AT_EXECFN = 31, - - M5_AT_VECTOR_SIZE = 44 - }; - - inline uint64_t uid() { return _uid; } - inline uint64_t euid() { return _euid; } - inline uint64_t gid() { return _gid; } - inline uint64_t egid() { return _egid; } - inline uint64_t pid() { return _pid; } - inline uint64_t ppid() { return _ppid; } - - // provide program name for debug messages - const char *progName() const { return executable.c_str(); } - - std::string - fullPath(const std::string &filename) - { - if (filename[0] == '/' || cwd.empty()) - return filename; - - std::string full = cwd; - - if (cwd[cwd.size() - 1] != '/') - full += '/'; - - return full + filename; - } - - std::string getcwd() const { return cwd; } - - void syscall(int64_t callnum, ThreadContext *tc); - - virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i) = 0; - virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int &i, int width); - virtual void setSyscallArg(ThreadContext *tc, - int i, TheISA::IntReg val) = 0; - virtual void setSyscallReturn(ThreadContext *tc, - SyscallReturn return_value) = 0; - - virtual SyscallDesc *getDesc(int callnum) = 0; - - /** - * Find an emulated device driver. - * - * @param filename Name of the device (under /dev) - * @return Pointer to driver object if found, else NULL - */ - EmulatedDriver *findDriver(std::string filename); - - // This function acts as a callback to update the bias value in - // the object file because the parameters needed to calculate the - // bias are not available when the object file is created. - void updateBias(); - - ObjectFile *getInterpreter(); - - Addr getBias(); - Addr getStartPC(); }; #endif // __PROCESS_HH__ |