/* src/vm/jit/powerpc/emit.c - PowerPC code emitter functions
- Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
- C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
- E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
- J. Wenninger, Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: emit.c 8216 2007-07-19 13:51:21Z michi $
-
*/
#include "vm/jit/powerpc/codegen.h"
-#include "mm/memory.h"
+#include "mm/memory.hpp"
-#include "threads/lock-common.h"
+#include "threads/lock.hpp"
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
+#include "vm/options.h"
#include "vm/jit/abi.h"
#include "vm/jit/asmpart.h"
-#include "vm/jit/codegen-common.h"
+#include "vm/jit/codegen-common.hpp"
#include "vm/jit/dseg.h"
-#include "vm/jit/emit-common.h"
-#include "vm/jit/jit.h"
-#include "vm/jit/patcher-common.h"
-#include "vm/jit/replace.h"
-
-#include "vmcore/options.h"
+#include "vm/jit/emit-common.hpp"
+#include "vm/jit/jit.hpp"
+#include "vm/jit/replace.hpp"
+#include "vm/jit/trace.hpp"
+#include "vm/jit/trap.hpp"
/* emit_load *******************************************************************
M_LLD(tempreg, REG_SP, disp);
break;
case TYPE_FLT:
- M_FLD(tempreg, REG_SP, disp);
- break;
case TYPE_DBL:
M_DLD(tempreg, REG_SP, disp);
break;
M_LST(d, REG_SP, disp);
break;
case TYPE_FLT:
- M_FST(d, REG_SP, disp);
- break;
case TYPE_DBL:
M_DST(d, REG_SP, disp);
break;
CODEGENDATA_FLAG_LONGBRANCHES);
}
- switch (condition) {
- case BRANCH_EQ:
- M_BNE(1);
- M_BR(branchdisp);
- break;
- case BRANCH_NE:
- M_BEQ(1);
- M_BR(branchdisp);
- break;
- case BRANCH_LT:
- M_BGE(1);
- M_BR(branchdisp);
- break;
- case BRANCH_GE:
- M_BLT(1);
- M_BR(branchdisp);
- break;
- case BRANCH_GT:
- M_BLE(1);
- M_BR(branchdisp);
- break;
- case BRANCH_LE:
- M_BGT(1);
- M_BR(branchdisp);
- break;
- case BRANCH_NAN:
- vm_abort("emit_branch: long BRANCH_NAN");
- break;
- default:
- vm_abort("emit_branch: unknown condition %d", condition);
+ // Subtract 1 instruction from the displacement as the
+ // actual branch is the second instruction.
+ checkdisp = checkdisp - 4;
+ branchdisp = branchdisp - 1;
+
+ if ((checkdisp < (int32_t) 0xfe000000) || (checkdisp > (int32_t) 0x01fffffc)) {
+ vm_abort("emit_branch: emit conditional long-branch code");
+ }
+ else {
+ switch (condition) {
+ case BRANCH_EQ:
+ M_BNE(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_NE:
+ M_BEQ(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_LT:
+ M_BGE(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_GE:
+ M_BLT(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_GT:
+ M_BLE(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_LE:
+ M_BGT(1);
+ M_BR(branchdisp);
+ break;
+ case BRANCH_NAN:
+ vm_abort("emit_branch: long BRANCH_NAN");
+ break;
+ default:
+ vm_abort("emit_branch: unknown condition %d", condition);
+ }
}
}
else {
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_TST(reg);
M_BNE(1);
- M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_ARITHMETIC);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, TRAP_ArithmeticException);
}
}
void emit_arrayindexoutofbounds_check(codegendata *cd, instruction *iptr, s4 s1, s4 s2)
{
if (INSTRUCTION_MUST_CHECK(iptr)) {
- M_ILD(REG_ITMP3, s1, OFFSET(java_arrayheader, size));
+ M_ILD(REG_ITMP3, s1, OFFSET(java_array_t, size));
M_TRAPGEU(s2, REG_ITMP3);
}
}
+/* emit_arraystore_check *******************************************************
+
+ Emit an ArrayStoreException check.
+
+*******************************************************************************/
+
+void emit_arraystore_check(codegendata *cd, instruction *iptr)
+{
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_TST(REG_RESULT);
+ M_BNE(1);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, TRAP_ArrayStoreException);
+ }
+}
+
+
/* emit_classcast_check ********************************************************
Emit a ClassCastException check.
default:
vm_abort("emit_classcast_check: unknown condition %d", condition);
}
- M_ALD_INTERN(s1, REG_ZERO, EXCEPTION_HARDWARE_CLASSCAST);
+ M_ALD_INTERN(s1, REG_ZERO, TRAP_ClassCastException);
}
}
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_TST(reg);
M_BNE(1);
- M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_NULLPOINTER);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, TRAP_NullPointerException);
}
}
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_TST(REG_RESULT);
M_BNE(1);
- M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_EXCEPTION);
+ M_ALD_INTERN(REG_ZERO, REG_ZERO, TRAP_CHECK_EXCEPTION);
}
}
-/* emit_patcher_traps **********************************************************
+/* emit_trap_compiler **********************************************************
- Generates the code for the patcher stubs.
+ Emit a trap instruction which calls the JIT compiler.
*******************************************************************************/
-void emit_patcher_traps(jitdata *jd)
+void emit_trap_compiler(codegendata *cd)
{
- codegendata *cd;
- codeinfo *code;
- patchref_t *pr;
- u1 *savedmcodeptr;
- u1 *tmpmcodeptr;
-
- /* get required compiler data */
-
- cd = jd->cd;
- code = jd->code;
-
- /* generate code patching stub call code */
-
- for (pr = list_first_unsynced(code->patchers); pr != NULL; pr = list_next_unsynced(code->patchers, pr)) {
+ M_ALD_INTERN(REG_METHODPTR, REG_ZERO, TRAP_COMPILER);
+}
- /* Get machine code which is patched back in later. The
- trap is 1 instruction word long. */
- tmpmcodeptr = (u1 *) (cd->mcodebase + pr->mpc);
+/* emit_trap *******************************************************************
- pr->mcode = *((u4 *) tmpmcodeptr);
+ Emit a trap instruction and return the original machine code.
- /* Patch in the trap to call the signal handler (done at
- compile time). */
+*******************************************************************************/
- savedmcodeptr = cd->mcodeptr; /* save current mcodeptr */
- cd->mcodeptr = tmpmcodeptr; /* set mcodeptr to patch position */
+uint32_t emit_trap(codegendata *cd)
+{
+ // Get machine code which is patched back in later. The rap is 1
+ // instruction word long.
+ uint32_t mcode = *((uint32_t*) cd->mcodeptr);
- M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_PATCHER);
+ M_ILLEGAL;
- cd->mcodeptr = savedmcodeptr; /* restore the current mcodeptr */
- }
+ return mcode;
}
int32_t disp;
int32_t i;
int32_t s, d;
- int32_t x;
if (!JITDATA_HAS_FLAG_VERBOSECALL(jd))
return;
M_NOP;
+ /* On Darwin we need to allocate an additional 3*4 bytes of stack
+ for the arguments to trace_java_call_enter, we make it 2*8. */
+
M_MFLR(REG_ZERO);
M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
- M_STWU(REG_SP, REG_SP, -(LA_SIZE + (1 + ARG_CNT + TMP_CNT) * 8));
-
- M_CLR(REG_ITMP1); /* prepare a "zero" register */
+ M_STWU(REG_SP, REG_SP, -(LA_SIZE + (2 + ARG_CNT + TMP_CNT) * 8));
/* save argument registers */
for (i = 0; i < md->paramcount; i++) {
if (!md->params[i].inmemory) {
s = md->params[i].regoff;
- d = LA_SIZE + (1 + i) * 8;
+ d = LA_SIZE + (i + 2) * 8;
switch (md->paramtypes[i].type) {
case TYPE_INT:
case TYPE_ADR:
- M_IST(REG_ITMP1, REG_SP, d); /* high-bits are zero */
- M_IST(s, REG_SP, d + 4);
+ M_IST(s, REG_SP, d);
break;
case TYPE_LNG:
M_LST(s, REG_SP, d);
break;
case TYPE_FLT:
- M_IST(REG_ITMP1, REG_SP, d); /* high-bits are zero */
- M_FST(s, REG_SP, d + 4);
+ M_FST(s, REG_SP, d);
break;
case TYPE_DBL:
M_DST(s, REG_SP, d);
}
}
- /* load arguments as longs */
-
- d = 0;
-
- for (i = 0; i < md->paramcount && i < TRACE_ARGS_NUM; i++) {
- s = LA_SIZE + (1 + i) * 8;
- x = PACK_REGS(abi_registers_integer_argument[d + 1],
- abi_registers_integer_argument[d]);
-
- M_LLD(x, REG_SP, s);
-
- d += 2;
- }
-
- /* put methodinfo pointer as last argument on the stack */
+ /* pass methodinfo and pointers to the tracer function */
disp = dseg_add_address(cd, m);
- M_ALD(REG_ITMP1, REG_PV, disp);
-#if defined(__DARWIN__)
- M_AST(REG_ITMP1, REG_SP, LA_SIZE + TRACE_ARGS_NUM * 8);
-#else
- M_AST(REG_ITMP1, REG_SP, LA_SIZE);
-#endif
- disp = dseg_add_functionptr(cd, builtin_verbosecall_enter);
+ M_ALD(REG_A0, REG_PV, disp);
+ M_AADD_IMM(REG_SP, LA_SIZE + 2 * 8, REG_A1);
+ M_AADD_IMM(REG_SP, LA_SIZE + (2 + ARG_CNT + TMP_CNT + cd->stackframesize) * 8, REG_A2);
+
+ disp = dseg_add_functionptr(cd, trace_java_call_enter);
M_ALD(REG_ITMP2, REG_PV, disp);
M_MTCTR(REG_ITMP2);
M_JSR;
for (i = 0; i < md->paramcount; i++) {
if (!md->params[i].inmemory) {
- s = LA_SIZE + (1 + i) * 8;
+ s = LA_SIZE + (i + 2) * 8;
d = md->params[i].regoff;
switch (md->paramtypes[i].type) {
case TYPE_INT:
case TYPE_ADR:
- M_ILD(d, REG_SP, s + 4); /* get low-bits */
+ M_ILD(d, REG_SP, s);
break;
case TYPE_LNG:
M_LLD(d, REG_SP, s);
break;
case TYPE_FLT:
- M_FLD(d, REG_SP, s + 4); /* get low-bits */
+ M_FLD(d, REG_SP, s);
break;
case TYPE_DBL:
M_DLD(d, REG_SP, s);
}
}
- M_ALD(REG_ZERO, REG_SP, LA_SIZE + (1 + ARG_CNT + TMP_CNT) * 8 + LA_LR_OFFSET);
+ M_ALD(REG_ZERO, REG_SP, LA_SIZE + (2 + ARG_CNT + TMP_CNT) * 8 + LA_LR_OFFSET);
M_MTLR(REG_ZERO);
- M_LDA(REG_SP, REG_SP, LA_SIZE + (1 + ARG_CNT + TMP_CNT) * 8);
+ M_LDA(REG_SP, REG_SP, LA_SIZE + (2 + ARG_CNT + TMP_CNT) * 8);
/* mark trace code */
Generates the code for the call trace.
- void builtin_verbosecall_exit(s8 l, double d, float f, methodinfo *m);
-
*******************************************************************************/
void emit_verbosecall_exit(jitdata *jd)
M_NOP;
+ /* On Darwin we need to allocate an additional 2*4 bytes of stack
+ for the arguments to trace_java_call_exit, we make it 1*8. */
+
M_MFLR(REG_ZERO);
M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
- M_STWU(REG_SP, REG_SP, -(LA_SIZE + (1 + 2 + 2 + 1 + 4) * 4));
-
- /* save return registers */
+ M_STWU(REG_SP, REG_SP, -(LA_SIZE + (1 + 1) * 8));
- M_LST(REG_RESULT_PACKED, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 0) * 4);
- M_DST(REG_FRESULT, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 2) * 4);
+ /* save return value */
- /* keep this order */
switch (md->returntype.type) {
case TYPE_INT:
case TYPE_ADR:
- M_INTMOVE(REG_RESULT, REG_A1);
- M_CLR(REG_A0);
+ M_IST(REG_RESULT, REG_SP, LA_SIZE + 1 * 8);
break;
-
case TYPE_LNG:
- M_LNGMOVE(REG_RESULT_PACKED, REG_A0_A1_PACKED);
+ M_LST(REG_RESULT_PACKED, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_FLT:
+ M_FST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_DBL:
+ M_DST(REG_FRESULT, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_VOID:
break;
}
- M_FLTMOVE(REG_FRESULT, REG_FA0);
- M_FLTMOVE(REG_FRESULT, REG_FA1);
-
disp = dseg_add_address(cd, m);
- M_ALD(REG_A2, REG_PV, disp);
+ M_ALD(REG_A0, REG_PV, disp);
+ M_AADD_IMM(REG_SP, LA_SIZE + 1 * 8, REG_A1);
- disp = dseg_add_functionptr(cd, builtin_verbosecall_exit);
+ disp = dseg_add_functionptr(cd, trace_java_call_exit);
M_ALD(REG_ITMP2, REG_PV, disp);
M_MTCTR(REG_ITMP2);
M_JSR;
- /* restore return registers */
+ /* restore return value */
- M_LLD(REG_RESULT_PACKED, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 0) * 4);
- M_DLD(REG_FRESULT, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 2) * 4);
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ M_ILD(REG_RESULT, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_LNG:
+ M_LLD(REG_RESULT_PACKED, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_FLT:
+ M_FLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_DBL:
+ M_DLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 8);
+ break;
+ case TYPE_VOID:
+ break;
+ }
- M_ALD(REG_ZERO, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 4) * 4 + LA_LR_OFFSET);
+ M_ALD(REG_ZERO, REG_SP, LA_SIZE + (1 + 1) * 8 + LA_LR_OFFSET);
M_MTLR(REG_ZERO);
- M_LDA(REG_SP, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 4) * 4);
+ M_LDA(REG_SP, REG_SP, LA_SIZE + (1 + 1) * 8);
/* mark trace code */
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