ea4cf923ed
This extends the existing register fields support from AArch64 Linux
to AArch64 FreeBSD. So you will now see output like this:
```
(lldb) register read cpsr
cpsr = 0x60000200
= (N = 0, Z = 1, C = 1, V = 0, DIT = 0, SS = 0, IL = 0, SSBS = 0, D = 1, A = 0, I = 0, F = 0, nRW = 0, EL = 0, SP = 0)
```
Linux and FreeBSD both have HWCAP/HWCAP2 so the detection mechanism
is the same and I've renamed the detector class to reflect that.
I have confirmed that FreeBSD's treatment of CPSR (spsr as the kernel
calls it) is similair enough that we can use the same field information.
(see `sys/arm64/include/armreg.h` and `PSR_SETTABLE_64`)
For testing I've enabled the same live process test as Linux
and added a shell test using an existing FreeBSD core file.
Note that the latter does not need XML support because when reading
a core file we are not sending the information via target.xml,
it's just internal to LLDB.
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
//===-- NativeThreadFreeBSD.h --------------------------------- -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_NativeThreadFreeBSD_H_
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#define liblldb_NativeThreadFreeBSD_H_
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#include "lldb/Host/common/NativeThreadProtocol.h"
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#include "Plugins/Process/FreeBSD/NativeRegisterContextFreeBSD.h"
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#include <csignal>
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#include <map>
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#include <string>
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namespace lldb_private {
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namespace process_freebsd {
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class NativeProcessFreeBSD;
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class NativeThreadFreeBSD : public NativeThreadProtocol {
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friend class NativeProcessFreeBSD;
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public:
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NativeThreadFreeBSD(NativeProcessFreeBSD &process, lldb::tid_t tid);
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// NativeThreadProtocol Interface
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std::string GetName() override;
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lldb::StateType GetState() override;
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bool GetStopReason(ThreadStopInfo &stop_info,
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std::string &description) override;
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NativeRegisterContextFreeBSD &GetRegisterContext() override;
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Status SetWatchpoint(lldb::addr_t addr, size_t size, uint32_t watch_flags,
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bool hardware) override;
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Status RemoveWatchpoint(lldb::addr_t addr) override;
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Status SetHardwareBreakpoint(lldb::addr_t addr, size_t size) override;
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Status RemoveHardwareBreakpoint(lldb::addr_t addr) override;
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NativeProcessFreeBSD &GetProcess();
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llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>>
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GetSiginfo() const override;
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private:
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// Interface for friend classes
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Status Resume();
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Status SingleStep();
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Status Suspend();
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void SetStoppedBySignal(uint32_t signo, const siginfo_t *info = nullptr);
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void SetStoppedByBreakpoint();
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void SetStoppedByTrace();
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void SetStoppedByExec();
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void SetStoppedByWatchpoint(uint32_t wp_index);
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void SetStoppedByFork(lldb::pid_t child_pid, lldb::tid_t child_tid);
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void SetStoppedByVFork(lldb::pid_t child_pid, lldb::tid_t child_tid);
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void SetStoppedByVForkDone();
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void SetStoppedWithNoReason();
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void SetStopped();
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void SetRunning();
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void SetStepping();
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llvm::Error CopyWatchpointsFrom(NativeThreadFreeBSD &source);
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// Member Variables
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lldb::StateType m_state;
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ThreadStopInfo m_stop_info;
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std::unique_ptr<NativeRegisterContextFreeBSD> m_reg_context_up;
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std::string m_stop_description;
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using WatchpointIndexMap = std::map<lldb::addr_t, uint32_t>;
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WatchpointIndexMap m_watchpoint_index_map;
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WatchpointIndexMap m_hw_break_index_map;
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};
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typedef std::shared_ptr<NativeThreadFreeBSD> NativeThreadFreeBSDSP;
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} // namespace process_freebsd
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} // namespace lldb_private
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#endif // #ifndef liblldb_NativeThreadFreeBSD_H_
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