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package sun.jvm.hotspot.debugger.aarch64;

import java.lang.annotation.Native;

import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.debugger.cdbg.*;

Specifies the thread context on aarch64 platforms; only a sub-portion of the context is guaranteed to be present on all operating systems.
/** Specifies the thread context on aarch64 platforms; only a sub-portion * of the context is guaranteed to be present on all operating * systems. */
public abstract class AARCH64ThreadContext implements ThreadContext { // Taken from /usr/include/asm/sigcontext.h on Linux/AARCH64. // /* // * Signal context structure - contains all info to do with the state // * before the signal handler was invoked. // */ // struct sigcontext { // __u64 fault_address; // /* AArch64 registers */ // __u64 regs[31]; // __u64 sp; // __u64 pc; // __u64 pstate; // /* 4K reserved for FP/SIMD state and future expansion */ // __u8 __reserved[4096] __attribute__((__aligned__(16))); // }; // NOTE: the indices for the various registers must be maintained as // listed across various operating systems. However, only a small // subset of the registers' values are guaranteed to be present (and // must be present for the SA's stack walking to work) // One instance of the Native annotation is enough to trigger header generation // for this file. @Native public static final int R0 = 0; public static final int R1 = 1; public static final int R2 = 2; public static final int R3 = 3; public static final int R4 = 4; public static final int R5 = 5; public static final int R6 = 6; public static final int R7 = 7; public static final int R8 = 8; public static final int R9 = 9; public static final int R10 = 10; public static final int R11 = 11; public static final int R12 = 12; public static final int R13 = 13; public static final int R14 = 14; public static final int R15 = 15; public static final int R16 = 16; public static final int R17 = 17; public static final int R18 = 18; public static final int R19 = 19; public static final int R20 = 20; public static final int R21 = 21; public static final int R22 = 22; public static final int R23 = 23; public static final int R24 = 24; public static final int R25 = 25; public static final int R26 = 26; public static final int R27 = 27; public static final int R28 = 28; public static final int FP = 29; public static final int LR = 30; public static final int SP = 31; public static final int PC = 32; public static final int PSTATE = 33; public static final int NPRGREG = 34; private long[] data; public AARCH64ThreadContext() { data = new long[NPRGREG]; } public int getNumRegisters() { return NPRGREG; } public String getRegisterName(int index) { switch (index) { case LR: return "lr"; case SP: return "sp"; case PC: return "pc"; default: return "r" + index; } } public void setRegister(int index, long value) { data[index] = value; } public long getRegister(int index) { return data[index]; } public CFrame getTopFrame(Debugger dbg) { return null; }
This can't be implemented in this class since we would have to tie the implementation to, for example, the debugging system
/** This can't be implemented in this class since we would have to * tie the implementation to, for example, the debugging system */
public abstract void setRegisterAsAddress(int index, Address value);
This can't be implemented in this class since we would have to tie the implementation to, for example, the debugging system
/** This can't be implemented in this class since we would have to * tie the implementation to, for example, the debugging system */
public abstract Address getRegisterAsAddress(int index); }