mirror of
https://github.com/corda/corda.git
synced 2025-01-17 02:09:50 +00:00
progress towards JIT stack unwinding
This commit is contained in:
Joel Dice
parent
404d996c1e
commit
2135f62584
@ -109,12 +109,12 @@ exit:
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.globl vmJump
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vmJump:
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// 8(%ebp): address
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// 12(%ebp): base
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movq 8(%ebp),%eax
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movq 12(%ebp),%rsp
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popq %rbp
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jmp *(%eax)
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// 4(%esp): address
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// 8(%esp): base
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movl 4(%esp),%eax
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movl 8(%esp),%esp
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popl %ebp
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jmp *%eax
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#else
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# error unsupported platform
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133
src/compile.cpp
133
src/compile.cpp
@ -11,6 +11,9 @@ extern "C" uint64_t
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vmInvoke(void* function, void* stack, unsigned stackSize,
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unsigned returnType);
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extern "C" void
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vmCall();
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extern "C" void NO_RETURN
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vmJump(void* address, void* base);
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@ -138,13 +141,13 @@ class MyThread: public Thread {
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inline void*
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frameBase(void* frame)
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{
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return *static_cast<void**>(frame);
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return static_cast<void**>(frame)[(-FrameFootprint / BytesPerWord) - 2];
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}
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inline bool
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frameValid(void* frame)
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{
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return frameBase(frame) != 0;
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return frame != 0;
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}
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inline void*
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@ -162,7 +165,7 @@ frameMethod(void* frame)
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inline void*
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frameAddress(void* frame)
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{
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return static_cast<void**>(frame)[1];
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return static_cast<void**>(frame)[(-FrameFootprint / BytesPerWord) - 1];
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}
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inline void*
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@ -352,7 +355,7 @@ invokeNative2(MyThread* t, object method)
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args[argOffset++] = reinterpret_cast<uintptr_t>(t);
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types[typeOffset++] = POINTER_TYPE;
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uintptr_t* sp = static_cast<uintptr_t*>(t->frame)
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uintptr_t* sp = static_cast<uintptr_t*>(frameBase(t->frame))
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+ (methodParameterFootprint(t, method) + 1)
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+ (FrameFootprint / BytesPerWord);
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@ -417,7 +420,7 @@ invokeNative2(MyThread* t, object method)
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args,
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types,
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count + 1,
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footprint,
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footprint * BytesPerWord,
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returnType);
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}
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@ -960,6 +963,9 @@ parameterOffset(unsigned index)
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return FrameFootprint + ((index + 2) * BytesPerWord);
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}
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Compiled*
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caller(MyThread* t);
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class Compiler: public Assembler {
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public:
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Compiler(MyThread* t):
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@ -1005,7 +1011,7 @@ class Compiler: public Assembler {
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Compiled* code = reinterpret_cast<Compiled*>(methodCompiled(t, target));
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push(rbp);
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push(rsp);
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push(poolRegister(), poolReference(target));
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push(rbp, FrameThread);
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@ -1017,11 +1023,15 @@ class Compiler: public Assembler {
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}
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void compileCall2(void* function, unsigned argCount) {
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mov(rbp, FrameThread, rax);
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lea(rsp, -(BytesPerWord * 2), rcx);
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mov(rcx, rax, threadFrameOffset()); // set thread frame to current
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if (BytesPerWord == 4) {
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push(rbp, FrameThread);
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} else {
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mov(rbp, FrameThread, rdi);
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}
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callAddress(function);
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mov(reinterpret_cast<uintptr_t>(function), rbx);
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callAddress(compiledCode(caller(t)));
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if (BytesPerWord == 4) {
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add(BytesPerWord * argCount, rsp);
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@ -1031,10 +1041,8 @@ class Compiler: public Assembler {
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void compileCall(void* function, object arg1) {
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if (BytesPerWord == 4) {
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push(poolRegister(), poolReference(arg1));
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push(rbp, FrameThread);
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} else {
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mov(poolRegister(), poolReference(arg1), rsi);
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mov(rbp, FrameThread, rdi);
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}
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compileCall2(function, 2);
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@ -1043,10 +1051,8 @@ class Compiler: public Assembler {
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void compileCall(void* function, Register arg1) {
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if (BytesPerWord == 4) {
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push(arg1);
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push(rbp, FrameThread);
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} else {
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mov(arg1, rsi);
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mov(rbp, FrameThread, rdi);
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}
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compileCall2(function, 2);
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@ -1056,11 +1062,9 @@ class Compiler: public Assembler {
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if (BytesPerWord == 4) {
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push(arg2);
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push(poolRegister(), poolReference(arg1));
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push(rbp, FrameThread);
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} else {
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mov(arg2, rdx);
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mov(poolRegister(), poolReference(arg1), rsi);
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mov(rbp, FrameThread, rdi);
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}
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compileCall2(function, 3);
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@ -1070,11 +1074,9 @@ class Compiler: public Assembler {
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if (BytesPerWord == 4) {
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push(arg2);
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pushAddress(reinterpret_cast<uintptr_t>(arg1));
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push(rbp, FrameThread);
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} else {
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mov(arg2, rdx);
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mov(reinterpret_cast<uintptr_t>(arg1), rsi);
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mov(rbp, FrameThread, rdi);
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}
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compileCall2(function, 3);
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@ -1084,11 +1086,9 @@ class Compiler: public Assembler {
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if (BytesPerWord == 4) {
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push(arg2);
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push(arg1);
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push(rbp, FrameThread);
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} else {
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mov(arg2, rdx);
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mov(arg1, rsi);
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mov(rbp, FrameThread, rdi);
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}
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compileCall2(function, 3);
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@ -2107,35 +2107,6 @@ class Compiler: public Assembler {
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- reinterpret_cast<uintptr_t>(t);
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}
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Compiled* compileNativeInvoker() {
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push(rbp);
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mov(rsp, rbp);
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if (BytesPerWord == 4) {
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push(rbp, FrameMethod);
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push(rbp, FrameThread);
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} else {
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mov(rbp, FrameMethod, rsi);
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mov(rbp, FrameThread, rdi);
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}
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mov(rbp, FrameThread, rax);
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mov(rbp, rax, threadFrameOffset()); // set thread frame to current
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mov(reinterpret_cast<uintptr_t>(invokeNative), rax);
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call(rax);
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if (BytesPerWord == 4) {
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add(BytesPerWord * 2, rsp);
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}
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mov(rbp, rsp);
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pop(rbp);
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ret();
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return finish();
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}
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Compiled* compileStub() {
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push(rbp);
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mov(rsp, rbp);
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@ -2148,11 +2119,8 @@ class Compiler: public Assembler {
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mov(rbp, FrameThread, rdi);
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}
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mov(rbp, FrameThread, rax);
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mov(rbp, rax, threadFrameOffset()); // set thread frame to current
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mov(reinterpret_cast<uintptr_t>(compileMethod), rax);
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call(rax);
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mov(reinterpret_cast<uintptr_t>(compileMethod), rbx);
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callAddress(compiledCode(caller(t)));
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if (BytesPerWord == 4) {
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add(BytesPerWord * 2, rsp);
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@ -2170,6 +2138,42 @@ class Compiler: public Assembler {
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return finish();
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}
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Compiled* compileNativeInvoker() {
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push(rbp);
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mov(rsp, rbp);
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if (BytesPerWord == 4) {
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push(rbp, FrameMethod);
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push(rbp, FrameThread);
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} else {
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mov(rbp, FrameMethod, rsi);
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mov(rbp, FrameThread, rdi);
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}
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mov(reinterpret_cast<uintptr_t>(invokeNative), rbx);
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callAddress(compiledCode(caller(t)));
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if (BytesPerWord == 4) {
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add(BytesPerWord * 2, rsp);
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}
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mov(rbp, rsp);
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pop(rbp);
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ret();
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return finish();
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}
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Compiled* compileCaller() {
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mov(rbp, FrameThread, rdi);
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lea(rsp, FrameFootprint + BytesPerWord, rcx);
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mov(rcx, rdi, threadFrameOffset()); // set thread frame to current
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jmp(rbx);
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return finish();
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}
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Compiled* finish() {
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return makeCompiled(t, &code, &lineNumbers, &exceptionHandlers);
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}
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@ -2544,6 +2548,16 @@ class MyProcessor: public Processor {
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return nativeInvoker_;
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}
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Compiled*
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caller(Thread* t)
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{
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if (caller_ == 0) {
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Compiler c(static_cast<MyThread*>(t));
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caller_ = c.compileCaller();
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}
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return caller_;
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}
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virtual unsigned
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parameterFootprint(vm::Thread*, const char* s, bool static_)
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{
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@ -2743,14 +2757,25 @@ class MyProcessor: public Processor {
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s->free(nativeInvoker_);
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}
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if (caller_) {
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s->free(caller_);
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}
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s->free(this);
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}
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System* s;
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Compiled* methodStub_;
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Compiled* nativeInvoker_;
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Compiled* caller_;
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};
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Compiled*
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caller(MyThread* t)
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{
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return static_cast<MyProcessor*>(t->m->processor)->caller(t);
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}
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} // namespace
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namespace vm {
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@ -123,15 +123,13 @@ cdeclCall:
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// reserve space for arguments
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movl 16(%ebp),%ecx
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subl %ecx,%esp
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#ifdef __APPLE__
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// align to a 16 byte boundary on Darwin
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addl $15,%ecx
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andl $0xFFFFFFF0,%ecx
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addl $8,%ecx
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andl $0xFFFFFFF0,%esp
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#endif
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subl %ecx,%esp
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// copy arguments into place
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movl $0,%ecx
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jmp test
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