Merge branch 'master' of git://oss.readytalk.com/avian

classpath/java-nio.cpp

@@ -27,6 +27,7 @@
 #  include <netdb.h>
 #  include <sys/select.h>
 #  include <netinet/tcp.h>
+#  include <sys/socket.h>
 #endif
 
 #define java_nio_channels_SelectionKey_OP_READ 1L

src/arch.h

@@ -21,6 +21,8 @@ vmJump(void* address, void* base, void* stack, void* thread,
 #  include "x86.h"
 #elif defined __POWERPC__
 #  include "powerpc.h"
+#elif defined __arm__
+#  include "arm.h"
 #else
 #  error unsupported architecture
 #endif

src/arm.S

@@ -0,0 +1,56 @@
+/* arm.S: JNI gluecode for ARM/Linux
+   Copyright (c) 2008-2009, Avian Contributors
+
+   Permission to use, copy, modify, and/or distribute this software
+   for any purpose with or without fee is hereby granted, provided
+   that the above copyright notice and this permission notice appear
+   in all copies.
+
+   There is NO WARRANTY for this software.  See license.txt for
+   details. */
+
+.text
+
+.globl vmNativeCall
+vmNativeCall:
+  /*
+    arguments:
+    r0 -> r4       : function
+    r1 -> r5       : stackTotal
+    r2             : memoryTable
+    r3             : memoryCount
+    [sp, #0] -> r6 : gprTable
+  */
+  mov   ip, sp           // save stack frame
+  stmfd sp!, {r4-r6, lr} // save clobbered non-volatile regs
+
+  // mv args into non-volatile regs
+  mov   r4, r0
+  mov   r5, r1
+  ldr   r6, [ip]
+
+  // setup stack arguments if necessary
+  sub   sp, sp, r5 // allocate stack
+  mov   ip, sp
+.Lloop:
+  tst   r3, r3
+  ldrne r0, [r2], #4
+  strne r0, [ip], #4
+  subne r3, r3, #4
+  bne   .Lloop
+
+  // setup argument registers if necessary
+  tst     r6, r6
+  ldmneia r6, {r0-r3}
+
+  blx   r4         // call function
+  add   sp, sp, r5 // deallocate stack
+
+  ldmfd sp!, {r4-r6, pc} // restore non-volatile regs and return
+
+.globl vmJump
+vmJump:
+  mov   sp, r2
+  mov   r4, r3
+  ldmia sp, {r0,r1}
+  mov   pc, lr

src/arm.h

@@ -0,0 +1,119 @@
+/* Copyright (c) 2008-2009, Avian Contributors
+
+   Permission to use, copy, modify, and/or distribute this software
+   for any purpose with or without fee is hereby granted, provided
+   that the above copyright notice and this permission notice appear
+   in all copies.
+
+   There is NO WARRANTY for this software.  See license.txt for
+   details. */
+
+#ifndef ARM_H
+#define ARM_H
+
+#include "types.h"
+#include "common.h"
+
+#define IP_REGISTER(context) (context->uc_mcontext.gregs[15])
+#define STACK_REGISTER(context) (context->uc_mcontext.gregs[13])
+#define THREAD_REGISTER(context) (context->uc_mcontext.gregs[12])
+
+extern "C" uint64_t
+vmNativeCall(void* function, unsigned stackTotal, void* memoryTable,
+             unsigned memoryCount, void* gprTable);
+
+namespace vm {
+
+inline void
+trap()
+{
+  asm("nop");
+}
+
+inline void
+memoryBarrier()
+{
+  asm("nop");
+}
+
+inline void
+storeStoreMemoryBarrier()
+{
+  memoryBarrier();
+}
+
+inline void
+storeLoadMemoryBarrier()
+{
+  memoryBarrier();
+}
+
+inline void
+loadMemoryBarrier()
+{
+  memoryBarrier();
+}
+
+inline void
+syncInstructionCache(const void* start UNUSED, unsigned size UNUSED)
+{
+  asm("nop");
+}
+
+inline uint64_t
+dynamicCall(void* function, uintptr_t* arguments, uint8_t* argumentTypes,
+            unsigned argumentCount, unsigned argumentsSize,
+            unsigned returnType UNUSED)
+{
+  const unsigned GprCount = 4;
+  uintptr_t gprTable[GprCount];
+  unsigned gprIndex = 0;
+
+  uintptr_t stack[argumentsSize / BytesPerWord];
+  unsigned stackIndex = 0;
+
+  unsigned ai = 0;
+  for (unsigned ati = 0; ati < argumentCount; ++ ati) {
+    switch (argumentTypes[ati]) {
+    case DOUBLE_TYPE:
+    case INT64_TYPE: {
+      if (gprIndex + (8 / BytesPerWord) <= GprCount) {
+        memcpy(gprTable + gprIndex, arguments + ai, 8);
+        gprIndex += 8 / BytesPerWord;
+      } else if (gprIndex == GprCount-1) { // split between last GPR and stack
+        memcpy(gprTable + gprIndex, arguments + ai, 4);
+        ++gprIndex;
+        memcpy(stack + stackIndex, arguments + ai + 4, 4);
+        ++stackIndex;
+      } else {
+        memcpy(stack + stackIndex, arguments + ai, 8);
+        stackIndex += 8 / BytesPerWord;
+      }
+      ai += 8 / BytesPerWord;
+    } break;
+
+    default: {
+      if (gprIndex < GprCount) {
+        gprTable[gprIndex++] = arguments[ai];
+      } else {
+        stack[stackIndex++] = arguments[ai];
+      }
+      ++ ai;
+    } break;
+    }
+  }
+
+  if (gprIndex < GprCount) { // pad since assembly loads all GPRs
+    memset(gprTable + gprIndex, 0, (GprCount-gprIndex)*4);
+    gprIndex = GprCount;
+  }
+
+  unsigned stackSize = stackIndex*BytesPerWord + ((stackIndex & 1) << 2);
+  return vmNativeCall
+    (function, stackSize, stack, stackIndex * BytesPerWord,
+     (gprIndex ? gprTable : 0));
+}
+
+} // namespace vm
+
+#endif // ARM_H

src/common.h

@@ -29,16 +29,20 @@
 #  define PATH_SEPARATOR ':'
 #endif
 
-#if (defined __i386__) || (defined __POWERPC__)
+#if (defined __i386__) || (defined __POWERPC__) || (defined __arm__)
 #  define LD "ld"
-#  define LLD "lld"
-#ifdef __APPLE__
-#  define ULD "lu"
-#  define LX "lx"
-#else
-#  define LX "x"
-#  define ULD "u"
-#endif
+#  ifdef __MINGW32__
+#    define LLD "I64d"
+#  else
+#    define LLD "lld"
+#  endif
+#  ifdef __APPLE__
+#    define ULD "lu"
+#    define LX "lx"
+#  else
+#    define LX "x"
+#    define ULD "u"
+#  endif
 #elif defined __x86_64__
 #  ifdef __MINGW32__
 #    define LD "I64d"

src/compile.cpp

@@ -190,8 +190,10 @@ compareIpToMethodBounds(Thread* t, intptr_t ip, object method)
   intptr_t start = methodCompiled(t, method);
 
   if (DebugMethodTree) {
-    fprintf(stderr, "find 0x%"LX" in (0x%"LX",0x%"LX")\n", ip, start,
-            start + compiledSize(start));
+    fprintf(stderr, "find %p in (%p,%p)\n",
+            reinterpret_cast<void*>(ip),
+            reinterpret_cast<void*>(start),
+            reinterpret_cast<void*>(start + compiledSize(start)));
   }
 
   if (ip < start) {

src/interpret.cpp

@@ -117,7 +117,11 @@ pushLong(Thread* t, uint64_t v)
 inline void
 pushDouble(Thread* t, double v)
 {
-  pushLong(t, doubleToBits(v));
+  uint64_t w = doubleToBits(v);
+#ifdef __arm__
+  w = w << 32 | w >> 32;
+#endif
+  pushLong(t, w);
 }
 
 inline object
@@ -170,7 +174,11 @@ popLong(Thread* t)
 inline double
 popDouble(Thread* t)
 {
-  return bitsToDouble(popLong(t));
+  uint64_t v = popLong(t);
+#ifdef __arm__
+  v = v << 32 | v >> 32;
+#endif
+  return bitsToDouble(v);
 }
 
 inline object
@@ -560,8 +568,17 @@ pushResult(Thread* t, unsigned returnCode, uint64_t result, bool indirect)
     pushInt(t, result);
     break;
 
-  case LongField:
   case DoubleField:
+#ifdef __arm__
+    result = result << 32 | result >> 32;
+    if (DebugRun) {
+      fprintf(stderr, "result: %"LLD"\n", result);
+    }
+    pushLong(t, result);
+    break;
+#endif
+
+  case LongField:
     if (DebugRun) {
       fprintf(stderr, "result: %"LLD"\n", result);
     }
@@ -611,8 +628,17 @@ marshalArguments(Thread* t, uintptr_t* args, unsigned i, unsigned count,
       args[offset++] = peekInt(t, sp++);
       break;
 
-    case INT64_TYPE:
-    case DOUBLE_TYPE: {
+    case DOUBLE_TYPE:
+#ifdef __arm__
+    {
+      uint64_t v = peekLong(t, sp);
+      v = v << 32 | v >> 32;
+      memcpy(args + offset, &v, 8);
+      offset += (8 / BytesPerWord);
+      sp += 2;
+    } break;
+#endif
+    case INT64_TYPE: {
       uint64_t v = peekLong(t, sp);
       memcpy(args + offset, &v, 8);
       offset += (8 / BytesPerWord);

src/x86.cpp

@@ -1049,7 +1049,7 @@ moveRR(Context* c, unsigned aSize, Assembler::Register* a,
     case 4:
       if (bSize == 8) {
       	if (BytesPerWord == 8) {
-          alwaysRex(c, aSize, b, a);
+          alwaysRex(c, bSize, b, a);
           opcode(c, 0x63);
           modrm(c, 0xc0, a, b);
       	} else {

test/Longs.java

@@ -35,7 +35,13 @@ public class Longs {
     return a - (a % b);
   }
 
+  private static int negativeOne() {
+    return -1;
+  }
+
   public static void main(String[] args) {
+    expect(((long) negativeOne()) == -1);
+
     { long foo = 25214903884L;
       int radix = 10;
       expect(foo > 0);

test/test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 log=build/log.txt
 vg="nice valgrind --leak-check=full --num-callers=32 \
@@ -28,7 +28,7 @@ for test in ${tests}; do
       exit 1;;
   esac
 
-  if (( ${?} == 0 )); then
+  if [ "${?}" = "0" ]; then
     echo "success"
   else
     echo "fail"