/* src/vm/jit/m68k/emit.c
- 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: arch.h 5330 2006-09-05 18:43:12Z edwin $
-
*/
#include <assert.h>
-#include "emit.h"
-#include "vm/jit/emit-common.h"
-#include "vm/exceptions.h"
-#include "vm/jit/asmpart.h"
-#include "vm/builtin.h"
+#include "vm/jit/m68k/codegen.h"
+#include "vm/jit/m68k/emit.h"
-#include "mm/memory.h"
+#include "mm/memory.hpp"
-#include "threads/lock-common.h"
+#include "vm/jit/builtin.hpp"
+
+#include "vm/jit/asmpart.h"
+#include "vm/jit/emit-common.hpp"
+#include "vm/jit/trace.hpp"
+#include "vm/jit/trap.hpp"
-#include "codegen.h"
-#include "md-os.h"
/* emit_mov_imm_reg **************************************************************************
*
*******************************************************************************/
-inline void emit_store(jitdata *jd, instruction *iptr, varinfo *dst, s4 d)
+void emit_store(jitdata *jd, instruction *iptr, varinfo *dst, s4 d)
{
codegendata *cd;
case TYPE_DBL:
#endif
case TYPE_LNG:
- M_LST(d, REG_SP, dst->vv.regoff * 4);
+ M_LST(d, REG_SP, dst->vv.regoff);
break;
#if defined(ENABLE_SOFTFLOAT)
case TYPE_FLT:
#endif
case TYPE_INT:
- M_IST(d, REG_SP, dst->vv.regoff * 4);
+ M_IST(d, REG_SP, dst->vv.regoff);
break;
case TYPE_ADR:
- M_AST(d, REG_SP, dst->vv.regoff * 4);
+ M_AST(d, REG_SP, dst->vv.regoff);
break;
#if !defined(ENABLE_SOFTFLOAT)
case TYPE_DBL:
- M_DST(d, REG_SP, dst->vv.regoff * 4);
+ M_DST(d, REG_SP, dst->vv.regoff);
break;
case TYPE_FLT:
- M_FST(d, REG_SP, dst->vv.regoff * 4);
+ M_FST(d, REG_SP, dst->vv.regoff);
break;
#endif
default:
if (IS_INMEMORY(src->flags)) {
COUNT_SPILLS;
- disp = src->vv.regoff * 4;
+ disp = src->vv.regoff;
switch (src->type) {
#if defined(ENABLE_SOFTFLOAT)
return reg;
}
-
-/* emit_patcher_stubs **********************************************************
-
- Generates the code for the patcher stubs.
-
-*******************************************************************************/
-void emit_patcher_stubs(jitdata *jd)
-{
- codegendata *cd;
- patchref *pref;
- u8 mcode;
- u1 *savedmcodeptr;
- u1 *tmpmcodeptr;
- s4 targetdisp;
- s4 disp;
-
- /* get required compiler data */
-
- cd = jd->cd;
-
- /* generate code patching stub call code */
-
- targetdisp = 0;
-
- for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
- /* check code segment size */
-
- MCODECHECK(512);
-
- /* Get machine code which is patched back in later. A
- `bsr.l' is 6 bytes long. */
-
- savedmcodeptr = cd->mcodebase + pref->branchpos;
- mcode = *((u8 *) savedmcodeptr);
-
- /* patch in `bsr.l' to call the following code */
-
- tmpmcodeptr = cd->mcodeptr; /* save current mcodeptr */
- cd->mcodeptr = savedmcodeptr; /* set mcodeptr to patch position */
-
- M_BSR_IMM(tmpmcodeptr - (savedmcodeptr + PATCHER_CALL_SIZE) + 4);
-
- cd->mcodeptr = tmpmcodeptr; /* restore the current mcodeptr */
-
- /* save REG_ITMP3, restored in asm_patcher_wrapper */
- M_IPUSH(REG_ITMP3);
-
- /* move pointer to java_objectheader onto stack */
-
-#if defined(ENABLE_THREADS)
- (void) dseg_add_unique_address(cd, NULL); /* flcword */
- (void) dseg_add_unique_address(cd, lock_get_initial_lock_word());
- disp = dseg_add_unique_address(cd, NULL); /* vftbl */
-
- M_IMOV_IMM32(0, REG_ITMP3);
- dseg_adddata(cd);
- M_IADD_IMM(disp, REG_ITMP3);
- M_IPUSH(REG_ITMP3);
-#else
- M_IPUSH_IMM(0);
-#endif
-
- /* push move machine code bytes and classinfo pointer */
-
- M_IPUSH_IMM(mcode >> 32);
- M_IPUSH_IMM(mcode);
- M_IPUSH_IMM(pref->ref);
- M_IPUSH_IMM(pref->patcher);
-
- M_JMP_IMM(asm_patcher_wrapper);
- }
-}
s4 emit_load_low(jitdata *jd, instruction *iptr, varinfo *src, s4 tempreg)
{
codegendata *cd;
if (IS_INMEMORY(src->flags)) {
COUNT_SPILLS;
- disp = src->vv.regoff * 4;
+ disp = src->vv.regoff;
M_ILD(tempreg, REG_SP, disp + 4);
reg = tempreg;
} else {
if (IS_INMEMORY(src->flags)) {
COUNT_SPILLS;
- disp = src->vv.regoff * 4;
+ disp = src->vv.regoff;
M_ILD(tempreg, REG_SP, disp);
reg = tempreg;
} else {
codegendata *cd;
registerdata *rd;
methoddesc *md;
- s4 disp,i,t;
-
if (!JITDATA_HAS_FLAG_VERBOSECALL(jd))
return;
/* mark trace code */
M_NOP;
-/*
- M_AADD_IMM(-16*4, REG_SP);
- M_PUSHALL;
-*/
M_IPUSH(REG_D0);
M_IPUSH(REG_D1);
M_APUSH(REG_A0);
M_APUSH(REG_A1);
+ M_AMOV(REG_SP, REG_A0); /* simpyfy stack offset calculation */
+
+#if !defined(ENABLE_SOFTFLOAT)
M_AADD_IMM(-8*2, REG_SP);
M_FSTORE(REG_F0, REG_SP, 8);
M_FSTORE(REG_F1, REG_SP, 0);
-
- /* builtin_verbosecall_enter takes all args as s8 type */
- /* TRACE_ARGS_NUM is the number of args the builtin_verbosecall_enter expects */
- M_IPUSH_IMM(m);
+#endif
- disp = 4*4 + 8*2 + 4; /* points to old argument stack initially */
-
- /* travel up stack to the first argument of the function which needs to be copied */
- for (i=0; (i < md->paramcount) && (i < TRACE_ARGS_NUM); i++) {
- disp += 4;
- if (IS_2_WORD_TYPE(md->paramtypes[i].type)) {
- disp += 4;
- }
- }
-
- /* disp now points to the first arg which gets copied to the trace stack, relative to REG_SP! */
- for (i=TRACE_ARGS_NUM-1; i>=0; --i) {
- if (i < md->paramcount) {
- /* traced function has such an argument */
- t = md->paramtypes[i].type;
-
- if (IS_2_WORD_TYPE(t)) {
- /* copy from original argument stack */
- M_ILD(REG_ITMP1, REG_SP, disp);
- M_IPUSH(REG_ITMP1);
- M_ILD(REG_ITMP1, REG_SP, disp);
- M_IPUSH(REG_ITMP1);
- } else {
- /* displacment is increased as 4 byte on original stack but 8 byte on trace stack */
- M_ILD(REG_ITMP1, REG_SP, disp);
- M_IPUSH(REG_ITMP1);
- M_IPUSH_IMM(0);
- disp += 4;
- }
- } else {
- /* function has no arg here, push nothing and adapt displacement */
- M_IPUSH_IMM(0);
- M_IPUSH_IMM(0);
- disp += 8;
- }
- }
- M_JSR_IMM(builtin_verbosecall_enter);
+ M_AADD_IMM(4*4 + 4, REG_A0);
+ M_APUSH(REG_A0); /* third arg is original argument stack */
+ M_IPUSH_IMM(0); /* second arg is number of argument registers (=0) */
+ M_IPUSH_IMM(m); /* first arg is methodpointer */
+
+ M_JSR_IMM(trace_java_call_enter);
/* pop arguments off stack */
- M_AADD_IMM(TRACE_ARGS_NUM*8+4, REG_SP);
+ M_AADD_IMM(3*4, REG_SP);
+#if !defined(ENABLE_SOFTFLOAT)
M_FSTORE(REG_F1, REG_SP, 0);
M_FSTORE(REG_F0, REG_SP, 8);
M_AADD_IMM(8*2, REG_SP);
+#endif
+
M_APOP(REG_A1);
M_APOP(REG_A0);
M_IPOP(REG_D1);
/* void builtin_verbosecall_exit(s8 l, double d, float f, methodinfo *m); */
+ /* void trace_java_call_exit(methodinfo *m, uint64_t *return_regs) */
/* mark trace code */
M_NOP;
- M_IPUSH_IMM(m); /* push methodinfo */
+ /* to store result on stack */
+ M_AADD_IMM(-8, REG_SP); /* create space for array */
- M_AADD_IMM(-3*4, REG_SP);
- M_FST(REG_D0, REG_SP, 8);
- M_DST(REG_D0, REG_SP, 0);
+ switch (md->returntype.type) {
+ case TYPE_ADR:
+ case TYPE_INT:
+ #if defined(ENABLE_SOFTFLOAT)
+ case TYPE_FLT:
+ #endif
+ M_IST(REG_D0, REG_SP, 0);
+ break;
- M_IPUSH(GET_HIGH_REG(REG_RESULT_PACKED))
- M_IPUSH(GET_LOW_REG(REG_RESULT_PACKED)) /* push long result */
+ case TYPE_LNG:
+ #if defined(ENABLE_SOFTFLOAT)
+ case TYPE_DBL:
+ #endif
+ M_LST(REG_D1, REG_SP, 0);
+ break;
+
+ #if !defined(ENABLE_SOFTFLOAT)
+ case TYPE_FLT: /* FIXME */
+ case TYPE_DBL: /* FIXME */
+ #endif
+
+ case TYPE_VOID: /* nothing */
+ break;
+ default:
+ assert(0);
+ }
- M_JSR_IMM(builtin_verbosecall_exit);
+ M_APUSH(REG_SP); /* push address of array */
+ M_IPUSH_IMM(m); /* push methodinfo */
+ M_JSR_IMM(trace_java_call_exit);
+ M_AADD_IMM(8, REG_SP); /* remove args */
/* poping result registers from stack */
- M_IPOP(GET_LOW_REG(REG_RESULT_PACKED))
- M_IPOP(GET_HIGH_REG(REG_RESULT_PACKED))
+ switch (md->returntype.type) {
+ case TYPE_ADR:
+ case TYPE_INT:
+ #if defined(ENABLE_SOFTFLOAT)
+ case TYPE_FLT:
+ #endif
+ M_ILD(REG_D0, REG_SP, 0);
+ break;
- M_DLD(REG_D0, REG_SP, 0)
- M_FLD(REG_D0, REG_SP, 8)
+ case TYPE_LNG:
+ #if defined(ENABLE_SOFTFLOAT)
+ case TYPE_DBL:
+ #endif
+ M_LLD(REG_D1, REG_SP, 0);
+ break;
+
+ #if !defined(ENABLE_SOFTFLOAT)
+ case TYPE_FLT: /* FIXME */
+ case TYPE_DBL: /* FIXME */
+ #endif
+
+ case TYPE_VOID: /* nothing */
+ break;
+
+ default:
+ assert(0);
+ }
+
+ M_AADD_IMM(8, REG_SP); /* remove space for array */
- M_AADD_IMM(3*4 + 4, REG_SP);
M_NOP;
}
#endif
vm_abort("emit_classcast_check: unknown condition %d", condition);
}
M_TRAP_SETREGISTER(s1);
- M_TRAP(EXCEPTION_HARDWARE_CLASSCAST);
+ M_TRAP(TRAP_ClassCastException);
}
}
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_ICMP(s2, REG_ITMP3);
M_BHI(4);
M_TRAP_SETREGISTER(s2);
- M_TRAP(EXCEPTION_HARDWARE_ARRAYINDEXOUTOFBOUNDS);
+ M_TRAP(TRAP_ArrayIndexOutOfBoundsException);
}
}
+
+/* emit_arraystore_check *******************************************************
+
+ Emit an ArrayStoreException check.
+
+*******************************************************************************/
+
+void emit_arraystore_check(codegendata *cd, instruction *iptr)
+{
+ if (INSTRUCTION_MUST_CHECK(iptr)) {
+ M_ITST(REG_RESULT);
+ M_BNE(2);
+ M_TRAP(TRAP_ArrayStoreException);
+ }
+}
+
+
/* emit_nullpointer_check ******************************************************
Emit a NullPointerException check.
*******************************************************************************/
+
void emit_nullpointer_check(codegendata *cd, instruction *iptr, s4 reg)
{
if (INSTRUCTION_MUST_CHECK(iptr)) {
* invocation at the beginning of codegen.c */
M_ATST(reg);
M_BNE(2);
- M_TRAP(M68K_EXCEPTION_HARDWARE_NULLPOINTER);
+ M_TRAP(TRAP_NullPointerException);
}
}
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_ITST(reg);
M_BNE(2);
- M_TRAP(EXCEPTION_HARDWARE_ARITHMETIC);
+ M_TRAP(TRAP_ArithmeticException);
}
}
if (INSTRUCTION_MUST_CHECK(iptr)) {
M_ITST(REG_RESULT);
M_BNE(2);
- /*M_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_EXCEPTION);*/
- M_TRAP(EXCEPTION_HARDWARE_EXCEPTION);
+ M_TRAP(TRAP_CHECK_EXCEPTION);
}
}
+/* emit_trap_compiler **********************************************************
+
+ Emit a trap instruction which calls the JIT compiler.
+
+*******************************************************************************/
+
+void emit_trap_compiler(codegendata *cd)
+{
+ M_TRAP_SETREGISTER(REG_METHODPTR);
+ M_TRAP(TRAP_COMPILER);
+}
+
+
+/* emit_trap *******************************************************************
+
+ Emit a trap instruction and return the original machine code.
+
+*******************************************************************************/
+
+uint32_t emit_trap(codegendata *cd)
+{
+ uint32_t mcode;
+
+ /* Get machine code which is patched back in later. The
+ trap is 2 bytes long. */
+
+ mcode = *((uint32_t *) cd->mcodeptr);
+
+ M_TRAP(TRAP_PATCHER);
+
+ return mcode;
+}
+
+
/*
* These are local overrides for various environment variables in Emacs.
projects / cacao.git / blobdiff