x86: Fix some style issues in stacktrace.cc.
De-indent the X86ISA namespace, and wrap some overly long lines. Change-Id: I01a6b66a1cf721e16e4ed4dd1c3469ee112e9177 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18368 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Gabe Black
@@ -44,179 +44,191 @@
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using namespace std;
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namespace X86ISA
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{
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ProcessInfo::ProcessInfo(ThreadContext *_tc)
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: tc(_tc)
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{
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Addr addr = 0;
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FSTranslatingPortProxy &vp = tc->getVirtProxy();
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ProcessInfo::ProcessInfo(ThreadContext *_tc)
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: tc(_tc)
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{
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Addr addr = 0;
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if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_size", addr))
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panic("thread info not compiled into kernel\n");
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thread_info_size = vp.readGtoH<int32_t>(addr);
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FSTranslatingPortProxy &vp = tc->getVirtProxy();
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if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_size", addr))
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panic("thread info not compiled into kernel\n");
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task_struct_size = vp.readGtoH<int32_t>(addr);
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if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_task", addr))
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panic("thread info not compiled into kernel\n");
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task_off = vp.readGtoH<int32_t>(addr);
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if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_pid", addr))
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panic("thread info not compiled into kernel\n");
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pid_off = vp.readGtoH<int32_t>(addr);
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if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_comm", addr))
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panic("thread info not compiled into kernel\n");
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name_off = vp.readGtoH<int32_t>(addr);
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if (!tc->getSystemPtr()->kernelSymtab->findAddress(
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"thread_info_size", addr)) {
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panic("thread info not compiled into kernel\n");
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}
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thread_info_size = vp.readGtoH<int32_t>(addr);
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Addr
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ProcessInfo::task(Addr ksp) const
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{
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Addr base = ksp & ~0x3fff;
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if (base == ULL(0xfffffc0000000000))
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return 0;
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Addr tsk;
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FSTranslatingPortProxy &vp = tc->getVirtProxy();
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tsk = vp.readGtoH<Addr>(base + task_off);
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return tsk;
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if (!tc->getSystemPtr()->kernelSymtab->findAddress(
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"task_struct_size", addr)) {
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panic("thread info not compiled into kernel\n");
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}
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task_struct_size = vp.readGtoH<int32_t>(addr);
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int
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ProcessInfo::pid(Addr ksp) const
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{
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Addr task = this->task(ksp);
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if (!task)
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return -1;
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uint16_t pd;
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FSTranslatingPortProxy &vp = tc->getVirtProxy();
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pd = vp.readGtoH<uint16_t>(task + pid_off);
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return pd;
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if (!tc->getSystemPtr()->kernelSymtab->findAddress(
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"thread_info_task", addr)) {
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panic("thread info not compiled into kernel\n");
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}
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task_off = vp.readGtoH<int32_t>(addr);
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string
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ProcessInfo::name(Addr ksp) const
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{
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Addr task = this->task(ksp);
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if (!task)
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return "console";
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char comm[256];
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CopyStringOut(tc, comm, task + name_off, sizeof(comm));
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if (!comm[0])
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return "startup";
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return comm;
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if (!tc->getSystemPtr()->kernelSymtab->findAddress(
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"task_struct_pid", addr)) {
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panic("thread info not compiled into kernel\n");
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}
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pid_off = vp.readGtoH<int32_t>(addr);
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StackTrace::StackTrace()
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: tc(0), stack(64)
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{
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if (!tc->getSystemPtr()->kernelSymtab->findAddress(
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"task_struct_comm", addr)) {
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panic("thread info not compiled into kernel\n");
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}
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name_off = vp.readGtoH<int32_t>(addr);
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}
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StackTrace::StackTrace(ThreadContext *_tc, const StaticInstPtr &inst)
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: tc(0), stack(64)
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{
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trace(_tc, inst);
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}
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Addr
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ProcessInfo::task(Addr ksp) const
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{
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Addr base = ksp & ~0x3fff;
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if (base == ULL(0xfffffc0000000000))
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return 0;
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StackTrace::~StackTrace()
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{
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}
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Addr tsk;
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void
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StackTrace::trace(ThreadContext *_tc, bool is_call)
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{
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}
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FSTranslatingPortProxy &vp = tc->getVirtProxy();
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tsk = vp.readGtoH<Addr>(base + task_off);
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bool
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StackTrace::isEntry(Addr addr)
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{
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return false;
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}
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return tsk;
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}
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bool
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StackTrace::decodeStack(MachInst inst, int &disp)
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{
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disp = 0;
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return true;
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}
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int
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ProcessInfo::pid(Addr ksp) const
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{
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Addr task = this->task(ksp);
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if (!task)
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return -1;
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bool
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StackTrace::decodeSave(MachInst inst, int ®, int &disp)
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{
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reg = 0;
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disp = 0;
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return true;
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}
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uint16_t pd;
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/*
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* Decode the function prologue for the function we're in, and note
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* which registers are stored where, and how large the stack frame is.
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*/
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bool
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StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func,
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int &size, Addr &ra)
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{
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size = 0;
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ra = 0;
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FSTranslatingPortProxy &vp = tc->getVirtProxy();
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pd = vp.readGtoH<uint16_t>(task + pid_off);
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for (Addr pc = func; pc < callpc; pc += sizeof(MachInst)) {
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MachInst inst;
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CopyOut(tc, (uint8_t *)&inst, pc, sizeof(MachInst));
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return pd;
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}
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int reg, disp;
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if (decodeStack(inst, disp)) {
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if (size) {
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// panic("decoding frame size again");
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return true;
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}
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size += disp;
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} else if (decodeSave(inst, reg, disp)) {
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if (!ra && reg == ReturnAddressReg) {
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CopyOut(tc, (uint8_t *)&ra, sp + disp, sizeof(Addr));
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if (!ra) {
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// panic("no return address value pc=%#x\n", pc);
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return false;
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}
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string
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ProcessInfo::name(Addr ksp) const
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{
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Addr task = this->task(ksp);
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if (!task)
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return "console";
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char comm[256];
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CopyStringOut(tc, comm, task + name_off, sizeof(comm));
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if (!comm[0])
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return "startup";
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return comm;
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}
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StackTrace::StackTrace()
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: tc(0), stack(64)
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{
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}
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StackTrace::StackTrace(ThreadContext *_tc, const StaticInstPtr &inst)
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: tc(0), stack(64)
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{
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trace(_tc, inst);
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}
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StackTrace::~StackTrace()
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{
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}
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void
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StackTrace::trace(ThreadContext *_tc, bool is_call)
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{
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}
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bool
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StackTrace::isEntry(Addr addr)
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{
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return false;
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}
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bool
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StackTrace::decodeStack(MachInst inst, int &disp)
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{
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disp = 0;
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return true;
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}
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bool
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StackTrace::decodeSave(MachInst inst, int ®, int &disp)
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{
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reg = 0;
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disp = 0;
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return true;
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}
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/*
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* Decode the function prologue for the function we're in, and note
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* which registers are stored where, and how large the stack frame is.
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*/
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bool
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StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func,
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int &size, Addr &ra)
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{
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size = 0;
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ra = 0;
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for (Addr pc = func; pc < callpc; pc += sizeof(MachInst)) {
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MachInst inst;
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CopyOut(tc, (uint8_t *)&inst, pc, sizeof(MachInst));
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int reg, disp;
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if (decodeStack(inst, disp)) {
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if (size) {
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// panic("decoding frame size again");
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return true;
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}
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size += disp;
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} else if (decodeSave(inst, reg, disp)) {
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if (!ra && reg == ReturnAddressReg) {
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CopyOut(tc, (uint8_t *)&ra, sp + disp, sizeof(Addr));
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if (!ra) {
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// panic("no return address value pc=%#x\n", pc);
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return false;
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}
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}
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}
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return true;
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}
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return true;
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}
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#if TRACING_ON
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void
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StackTrace::dump()
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{
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StringWrap name(tc->getCpuPtr()->name());
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SymbolTable *symtab = tc->getSystemPtr()->kernelSymtab;
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void
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StackTrace::dump()
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{
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StringWrap name(tc->getCpuPtr()->name());
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SymbolTable *symtab = tc->getSystemPtr()->kernelSymtab;
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DPRINTFN("------ Stack ------\n");
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DPRINTFN("------ Stack ------\n");
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string symbol;
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for (int i = 0, size = stack.size(); i < size; ++i) {
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Addr addr = stack[size - i - 1];
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if (addr == user)
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symbol = "user";
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else if (addr == console)
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symbol = "console";
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else if (addr == unknown)
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symbol = "unknown";
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else
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symtab->findSymbol(addr, symbol);
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string symbol;
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for (int i = 0, size = stack.size(); i < size; ++i) {
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Addr addr = stack[size - i - 1];
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if (addr == user)
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symbol = "user";
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else if (addr == console)
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symbol = "console";
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else if (addr == unknown)
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symbol = "unknown";
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else
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symtab->findSymbol(addr, symbol);
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DPRINTFN("%#x: %s\n", addr, symbol);
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}
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DPRINTFN("%#x: %s\n", addr, symbol);
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}
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}
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#endif
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}
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