Christian Ullrich
Edwin Steiner
- $Id: codegen.c 5221 2006-08-08 13:25:33Z twisti $
+ $Id: codegen.c 5280 2006-08-28 13:05:03Z twisti $
*/
#include "vm/options.h"
#include "vm/stringlocal.h"
#include "vm/vm.h"
+#include "vm/jit/abi-asm.h"
#include "vm/jit/asmpart.h"
#include "vm/jit/codegen-common.h"
#include "vm/jit/dseg.h"
#endif
-void codegen_trace_args(jitdata *jd, s4 stackframesize, bool nativestub);
-
/* codegen *********************************************************************
Generates machine code.
registerdata *rd;
s4 len, s1, s2, s3, d, disp;
ptrint a;
- s4 stackframesize;
stackptr src;
varinfo *var;
basicblock *bptr;
savedregs_num += (INT_SAV_CNT - rd->savintreguse);
savedregs_num += (FLT_SAV_CNT - rd->savfltreguse) * 2;
- stackframesize = rd->memuse + savedregs_num;
+ cd->stackframesize = rd->memuse + savedregs_num;
#if defined(ENABLE_THREADS)
/* Space to save argument of monitor_enter and Return Values to
/* reserve 2 slots for long/double return values for monitorexit */
if (IS_2_WORD_TYPE(m->parseddesc->returntype.type))
- stackframesize += 3;
+ cd->stackframesize += 3;
else
- stackframesize += 2;
+ cd->stackframesize += 2;
}
#endif
/* align stack to 16-bytes */
-/* if (!jd->isleafmethod || opt_verbosecall) */
- stackframesize = (stackframesize + 3) & ~3;
+ if (!jd->isleafmethod || JITDATA_HAS_FLAG_VERBOSECALL(jd))
+ cd->stackframesize = (cd->stackframesize + 3) & ~3;
-/* else if (jd->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
-/* stackframesize = 0; */
+ else if (jd->isleafmethod && (cd->stackframesize == LA_SIZE_IN_POINTERS))
+ cd->stackframesize = 0;
(void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
- (void) dseg_add_unique_s4(cd, stackframesize * 4); /* FrameSize */
+ (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize */
#if defined(ENABLE_THREADS)
/* IsSync contains the offset relative to the stack pointer for the
M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
}
- if (stackframesize)
- M_STWU(REG_SP, REG_SP, -stackframesize * 4);
+ if (cd->stackframesize)
+ M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
/* save return address and used callee saved registers */
- p = stackframesize;
+ p = cd->stackframesize;
for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
p--; M_IST(rd->savintregs[i], REG_SP, p * 4);
}
} else { /* stack arguments */
if (!(var->flags & INMEMORY)) { /* stack arg -> register */
if (IS_2_WORD_TYPE(t))
- M_LLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
+ M_LLD(var->regoff, REG_SP, (cd->stackframesize + s1) * 4);
else
- M_ILD(var->regoff, REG_SP, (stackframesize + s1) * 4);
+ M_ILD(var->regoff, REG_SP, (cd->stackframesize + s1) * 4);
} else { /* stack arg -> spilled */
#if 1
- M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4);
+ M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4);
M_IST(REG_ITMP1, REG_SP, var->regoff * 4);
if (IS_2_WORD_TYPE(t)) {
- M_ILD(REG_ITMP1, REG_SP, (stackframesize + s1) * 4 +4);
+ M_ILD(REG_ITMP1, REG_SP, (cd->stackframesize + s1) * 4 +4);
M_IST(REG_ITMP1, REG_SP, var->regoff * 4 + 4);
}
#else
/* Reuse Memory Position on Caller Stack */
- var->regoff = stackframesize + s1;
+ var->regoff = cd->stackframesize + s1;
#endif
}
}
} else { /* stack arguments */
if (!(var->flags & INMEMORY)) { /* stack-arg -> register */
if (IS_2_WORD_TYPE(t))
- M_DLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
+ M_DLD(var->regoff, REG_SP, (cd->stackframesize + s1) * 4);
else
- M_FLD(var->regoff, REG_SP, (stackframesize + s1) * 4);
+ M_FLD(var->regoff, REG_SP, (cd->stackframesize + s1) * 4);
} else { /* stack-arg -> spilled */
#if 1
if (IS_2_WORD_TYPE(t)) {
- M_DLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
+ M_DLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
M_DST(REG_FTMP1, REG_SP, var->regoff * 4);
- var->regoff = stackframesize + s1;
+ var->regoff = cd->stackframesize + s1;
} else {
- M_FLD(REG_FTMP1, REG_SP, (stackframesize + s1) * 4);
+ M_FLD(REG_FTMP1, REG_SP, (cd->stackframesize + s1) * 4);
M_FST(REG_FTMP1, REG_SP, var->regoff * 4);
}
#else
/* Reuse Memory Position on Caller Stack */
- var->regoff = stackframesize + s1;
+ var->regoff = cd->stackframesize + s1;
#endif
}
}
/* call monitorenter function */
if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+ /* stack offset for monitor argument */
+
+ s1 = rd->memuse;
+
+# if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
+
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_IST(rd->argintregs[p], REG_SP, LA_SIZE + p * 8);
+
+ for (p = 0; p < FLT_ARG_CNT; p++)
+ M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
+
+ /* ATTENTION: We multiply here with 2, because we use * 8
+ above for simplicity and below * 4! */
+
+ s1 += (LA_SIZE_IN_POINTERS + ARG_CNT) * 2;
+ }
+# endif
+
p = dseg_add_functionptr(cd, LOCK_monitor_enter);
M_ALD(REG_ITMP3, REG_PV, p);
M_MTCTR(REG_ITMP3);
codegen_add_nullpointerexception_ref(cd);
}
- M_AST(rd->argintregs[0], REG_SP, rd->memuse * 4);
+ M_AST(rd->argintregs[0], REG_SP, s1 * 4);
M_JSR;
+
+# if !defined(NDEBUG)
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
+ for (p = 0; p < INT_ARG_CNT; p++)
+ M_ILD(rd->argintregs[p], REG_SP, LA_SIZE + p * 8);
+
+ for (p = 0; p < FLT_ARG_CNT; p++)
+ M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + (INT_ARG_CNT + p) * 8);
+
+ M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
+ }
+# endif
}
-#endif
+#endif /* defined(ENABLE_THREADS) */
/* call trace function */
if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- codegen_trace_args(jd, stackframesize, false);
+ emit_verbosecall_enter(jd);
}
/* end of header generation */
replacementpoint++;
}
-#if 0
/* generate basicblock profiling code */
if (JITDATA_HAS_FLAG_INSTRUMENT(jd)) {
/* if (bptr->type == BBTYPE_EXH) */
/* PROFILE_CYCLE_START; */
}
-#endif
/* copy interface registers to their destination */
disp = dseg_add_unique_address(cd, cr);
- codegen_addpatchref(cd, PATCHER_aconst, cr, disp);
+ codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
+ cr, disp);
if (opt_showdisassemble)
M_NOP;
disp = dseg_add_address(cd, &(fi->value));
if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
- codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
+ codegen_addpatchref(cd, PATCHER_initialize_class,
+ fi->class, disp);
if (opt_showdisassemble)
M_NOP;
disp = dseg_add_address(cd, &(fi->value));
if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
- codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
+ codegen_addpatchref(cd, PATCHER_initialize_class,
+ fi->class, disp);
if (opt_showdisassemble)
M_NOP;
if (iptr->val.a) {
unresolved_class *uc = INSTRUCTION_UNRESOLVED_CLASS(iptr);
- codegen_addpatchref(cd, PATCHER_athrow_areturn, uc, 0);
+ codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
if (opt_showdisassemble)
M_NOP;
if (iptr->val.a) {
unresolved_class *uc = INSTRUCTION_UNRESOLVED_CLASS(iptr);
- codegen_addpatchref(cd, PATCHER_athrow_areturn, uc, 0);
+ codegen_addpatchref(cd, PATCHER_resolve_class, uc, 0);
if (opt_showdisassemble)
M_NOP;
{
s4 i, p;
- p = stackframesize;
+ p = cd->stackframesize;
/* call trace function */
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
- M_MFLR(REG_ZERO);
- M_LDA(REG_SP, REG_SP, -10 * 8);
- M_DST(REG_FRESULT, REG_SP, 48+0);
- M_IST(REG_RESULT, REG_SP, 48+8);
- M_AST(REG_ZERO, REG_SP, 48+12);
- M_IST(REG_RESULT2, REG_SP, 48+16);
-
- /* keep this order */
- switch (iptr->opc) {
- case ICMD_IRETURN:
- case ICMD_ARETURN:
-#if defined(__DARWIN__)
- M_MOV(REG_RESULT, rd->argintregs[2]);
- M_CLR(rd->argintregs[1]);
-#else
- M_MOV(REG_RESULT, rd->argintregs[3]);
- M_CLR(rd->argintregs[2]);
-#endif
- break;
-
- case ICMD_LRETURN:
-#if defined(__DARWIN__)
- M_MOV(REG_RESULT2, rd->argintregs[2]);
- M_MOV(REG_RESULT, rd->argintregs[1]);
-#else
- M_MOV(REG_RESULT2, rd->argintregs[3]);
- M_MOV(REG_RESULT, rd->argintregs[2]);
-#endif
- break;
- }
-
- disp = dseg_add_address(cd, m);
- M_ALD(rd->argintregs[0], REG_PV, disp);
-
- M_FLTMOVE(REG_FRESULT, rd->argfltregs[0]);
- M_FLTMOVE(REG_FRESULT, rd->argfltregs[1]);
- disp = dseg_add_functionptr(cd, builtin_displaymethodstop);
- M_ALD(REG_ITMP2, REG_PV, disp);
- M_MTCTR(REG_ITMP2);
- M_JSR;
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
+ emit_verbosecall_exit(jd);
- M_DLD(REG_FRESULT, REG_SP, 48+0);
- M_ILD(REG_RESULT, REG_SP, 48+8);
- M_ALD(REG_ZERO, REG_SP, 48+12);
- M_ILD(REG_RESULT2, REG_SP, 48+16);
- M_LDA(REG_SP, REG_SP, 10 * 8);
- M_MTLR(REG_ZERO);
- }
-
#if defined(ENABLE_THREADS)
if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
/* deallocate stack */
- if (stackframesize)
- M_LDA(REG_SP, REG_SP, stackframesize * 4);
+ if (cd->stackframesize)
+ M_LDA(REG_SP, REG_SP, cd->stackframesize * 4);
M_RET;
ALIGNCODENOP;
if (super == NULL) {
disp = dseg_add_unique_address(cd, NULL);
- codegen_addpatchref(cd, PATCHER_checkcast_class,
+ codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
(constant_classref *) iptr->target,
disp);
if (iptr->val.a == NULL) {
disp = dseg_add_unique_address(cd, NULL);
- codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
+ codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
(constant_classref *) iptr->target,
disp);
if (super == NULL) {
disp = dseg_add_unique_address(cd, NULL);
- codegen_addpatchref(cd, PATCHER_instanceof_class,
+ codegen_addpatchref(cd, PATCHER_resolve_classref_to_vftbl,
(constant_classref *) iptr->target,
disp);
if (iptr->val.a == NULL) {
disp = dseg_add_unique_address(cd, NULL);
- codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
+ codegen_addpatchref(cd, PATCHER_resolve_classref_to_classinfo,
(constant_classref *) iptr->target, disp);
if (opt_showdisassemble)
M_NOP;
-
}
else
disp = dseg_add_address(cd, iptr->val.a);
dseg_createlinenumbertable(cd);
+ /* generate stubs */
- /* generate exception and patcher stubs */
-
- {
- exceptionref *eref;
- patchref *pref;
- u4 mcode;
- u1 *savedmcodeptr;
- u1 *tmpmcodeptr;
-
- savedmcodeptr = NULL;
-
- /* generate exception stubs */
-
- for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
- gen_resolvebranch(cd->mcodebase + eref->branchpos,
- eref->branchpos, cd->mcodeptr - cd->mcodebase);
-
- MCODECHECK(100);
-
- /* Move the value register to a temporary register, if
- there is the need for it. */
-
- if (eref->reg != -1)
- M_MOV(eref->reg, REG_ITMP1);
-
- /* calcuate exception address */
-
- M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
-
- /* move function to call into REG_ITMP3 */
-
- disp = dseg_add_functionptr(cd, eref->function);
- M_ALD(REG_ITMP3, REG_PV, disp);
-
- if (savedmcodeptr != NULL) {
- disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
- M_BR(disp);
- }
- else {
- savedmcodeptr = cd->mcodeptr;
-
- if (jd->isleafmethod) {
- M_MFLR(REG_ZERO);
- M_AST(REG_ZERO, REG_SP, stackframesize * 4 + LA_LR_OFFSET);
- }
-
- M_MOV(REG_PV, rd->argintregs[0]);
- M_MOV(REG_SP, rd->argintregs[1]);
-
- if (jd->isleafmethod)
- M_MOV(REG_ZERO, rd->argintregs[2]);
- else
- M_ALD(rd->argintregs[2],
- REG_SP, stackframesize * 4 + LA_LR_OFFSET);
-
- M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
- M_MOV(REG_ITMP1, rd->argintregs[4]);
-
- M_STWU(REG_SP, REG_SP, -(LA_SIZE + 6 * 4));
- M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 4);
-
- M_MTCTR(REG_ITMP3);
- M_JSR;
- M_MOV(REG_RESULT, REG_ITMP1_XPTR);
-
- M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 4);
- M_IADD_IMM(REG_SP, LA_SIZE + 6 * 4, REG_SP);
-
- if (jd->isleafmethod) {
- /* XXX FIXME: REG_ZERO can cause problems here! */
- assert(stackframesize * 4 <= 32767);
-
- M_ALD(REG_ZERO, REG_SP, stackframesize * 4 + LA_LR_OFFSET);
- M_MTLR(REG_ZERO);
- }
-
- disp = dseg_add_functionptr(cd, asm_handle_exception);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
- }
- }
-
-
- /* generate code patching stub call code */
-
- for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
- /* check code segment size */
-
- MCODECHECK(16);
-
- /* Get machine code which is patched back in later. The
- call is 1 instruction word long. */
-
- tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
-
- mcode = *((u4 *) tmpmcodeptr);
-
- /* Patch in the call to call the following code (done at
- compile time). */
-
- savedmcodeptr = cd->mcodeptr; /* save current mcodeptr */
- cd->mcodeptr = tmpmcodeptr; /* set mcodeptr to patch position */
-
- disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
- M_BR(disp);
-
- cd->mcodeptr = savedmcodeptr; /* restore the current mcodeptr */
-
- /* create stack frame - keep stack 16-byte aligned */
-
- M_AADD_IMM(REG_SP, -8 * 4, REG_SP);
-
- /* calculate return address and move it onto the stack */
-
- M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
- M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 4);
-
- /* move pointer to java_objectheader onto stack */
-
-#if defined(ENABLE_THREADS)
- /* order reversed because of data segment layout */
-
- (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_LDA(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 4);
-#else
- /* do nothing */
-#endif
-
- /* move machine code onto stack */
-
- disp = dseg_add_s4(cd, mcode);
- M_ILD(REG_ITMP3, REG_PV, disp);
- M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 4);
-
- /* move class/method/field reference onto stack */
-
- disp = dseg_add_address(cd, pref->ref);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 4);
-
- /* move data segment displacement onto stack */
-
- disp = dseg_add_s4(cd, pref->disp);
- M_ILD(REG_ITMP3, REG_PV, disp);
- M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 4);
-
- /* move patcher function pointer onto stack */
-
- disp = dseg_add_functionptr(cd, pref->patcher);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
-
- disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
- }
-
- /* generate replacement-out stubs */
-
- {
- int i;
-
- replacementpoint = jd->code->rplpoints;
-
- for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
- /* check code segment size */
-
- MCODECHECK(100);
-
- /* note start of stub code */
-
- replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
-
- /* make machine code for patching */
-
- tmpmcodeptr = cd->mcodeptr;
- cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
-
- disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
- M_BR(disp);
-
- cd->mcodeptr = tmpmcodeptr;
-
- /* create stack frame - keep 16-byte aligned */
-
- M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
-
- /* push address of `rplpoint` struct */
-
- disp = dseg_add_address(cd, replacementpoint);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
-
- /* jump to replacement function */
-
- disp = dseg_add_functionptr(cd, asm_replacement_out);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
- }
- }
- }
+ emit_exception_stubs(jd);
+ emit_patcher_stubs(jd);
+ emit_replacement_stubs(jd);
codegen_finish(jd);
codeinfo *code;
codegendata *cd;
registerdata *rd;
- s4 stackframesize; /* size of stackframe if needed */
methoddesc *md;
s4 nativeparams;
s4 i, j; /* count variables */
/* calculate stackframe size */
- stackframesize =
+ cd->stackframesize =
sizeof(stackframeinfo) / SIZEOF_VOID_P +
sizeof(localref_table) / SIZEOF_VOID_P +
4 + /* 4 stackframeinfo arguments (darwin)*/
nmd->paramcount * 2 + /* assume all arguments are doubles */
nmd->memuse;
- stackframesize = (stackframesize + 3) & ~3; /* keep stack 16-byte aligned */
+ /* keep stack 16-byte aligned */
+
+ cd->stackframesize = (cd->stackframesize + 3) & ~3;
/* create method header */
(void) dseg_add_unique_address(cd, code); /* CodeinfoPointer */
- (void) dseg_add_unique_s4(cd, stackframesize * 4); /* FrameSize */
+ (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize */
(void) dseg_add_unique_s4(cd, 0); /* IsSync */
(void) dseg_add_unique_s4(cd, 0); /* IsLeaf */
(void) dseg_add_unique_s4(cd, 0); /* IntSave */
M_MFLR(REG_ZERO);
M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
- M_STWU(REG_SP, REG_SP, -(stackframesize * 4));
+ M_STWU(REG_SP, REG_SP, -(cd->stackframesize * 4));
if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
- /* parent_argbase == stackframesize * 4 */
- codegen_trace_args(jd, stackframesize * 4 , true);
+ emit_verbosecall_enter(jd);
/* get function address (this must happen before the stackframeinfo) */
/* create native stack info */
- M_AADD_IMM(REG_SP, stackframesize * 4, rd->argintregs[0]);
+ M_AADD_IMM(REG_SP, cd->stackframesize * 4, rd->argintregs[0]);
M_MOV(REG_PV, rd->argintregs[1]);
- M_AADD_IMM(REG_SP, stackframesize * 4, rd->argintregs[2]);
- M_ALD(rd->argintregs[3], REG_SP, stackframesize * 4 + LA_LR_OFFSET);
+ M_AADD_IMM(REG_SP, cd->stackframesize * 4, rd->argintregs[2]);
+ M_ALD(rd->argintregs[3], REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
disp = dseg_add_functionptr(cd, codegen_start_native_call);
M_ALD(REG_ITMP1, REG_PV, disp);
M_MTCTR(REG_ITMP1);
}
} else {
- s1 = md->params[i].regoff + stackframesize;
+ s1 = md->params[i].regoff + cd->stackframesize;
s2 = nmd->params[j].regoff;
M_ILD(REG_ITMP1, REG_SP, s1 * 4);
argument registers keep unchanged. */
if (md->params[i].inmemory) {
- s1 = md->params[i].regoff + stackframesize;
+ s1 = md->params[i].regoff + cd->stackframesize;
s2 = nmd->params[j].regoff;
if (IS_2_WORD_TYPE(t)) {
M_MTCTR(REG_ITMP3);
M_JSR;
+ /* print call trace */
+
+ if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
+ emit_verbosecall_exit(jd);
+
/* save return value */
if (md->returntype.type != TYPE_VOID) {
}
}
- /* print call trace */
-
- if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
- /* just restore the value we need, don't care about the other */
-
- if (md->returntype.type != TYPE_VOID) {
- if (IS_INT_LNG_TYPE(md->returntype.type)) {
- if (IS_2_WORD_TYPE(md->returntype.type))
- M_ILD(REG_RESULT2, REG_SP, LA_SIZE + 2 * 4);
- M_ILD(REG_RESULT, REG_SP, LA_SIZE + 1 * 4);
- }
- else {
- if (IS_2_WORD_TYPE(md->returntype.type))
- M_DLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
- else
- M_FLD(REG_FRESULT, REG_SP, LA_SIZE + 1 * 4);
- }
- }
-
- M_LDA(REG_SP, REG_SP, -(LA_SIZE + (1 + 2 + 2 + 1) * 4));
-
- /* keep this order */
- switch (md->returntype.type) {
- case TYPE_INT:
- case TYPE_ADR:
-#if defined(__DARWIN__)
- M_MOV(REG_RESULT, rd->argintregs[2]);
- M_CLR(rd->argintregs[1]);
-#else
- M_MOV(REG_RESULT, rd->argintregs[3]);
- M_CLR(rd->argintregs[2]);
-#endif
- break;
-
- case TYPE_LNG:
-#if defined(__DARWIN__)
- M_MOV(REG_RESULT2, rd->argintregs[2]);
- M_MOV(REG_RESULT, rd->argintregs[1]);
-#else
- M_MOV(REG_RESULT2, rd->argintregs[3]);
- M_MOV(REG_RESULT, rd->argintregs[2]);
-#endif
- break;
- }
-
- M_FLTMOVE(REG_FRESULT, rd->argfltregs[0]);
- M_FLTMOVE(REG_FRESULT, rd->argfltregs[1]);
- disp = dseg_add_address(cd, m);
- M_ALD(rd->argintregs[0], REG_PV, disp);
-
- disp = dseg_add_functionptr(cd, builtin_displaymethodstop);
- M_ALD(REG_ITMP2, REG_PV, disp);
- M_MTCTR(REG_ITMP2);
- M_JSR;
-
- M_LDA(REG_SP, REG_SP, LA_SIZE + (1 + 2 + 2 + 1) * 4);
- }
-
/* remove native stackframe info */
- M_AADD_IMM(REG_SP, stackframesize * 4, rd->argintregs[0]);
+ M_AADD_IMM(REG_SP, cd->stackframesize * 4, rd->argintregs[0]);
disp = dseg_add_functionptr(cd, codegen_finish_native_call);
M_ALD(REG_ITMP1, REG_PV, disp);
M_MTCTR(REG_ITMP1);
}
}
- M_ALD(REG_ITMP2_XPC, REG_SP, stackframesize * 4 + LA_LR_OFFSET);
+ M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
M_MTLR(REG_ITMP2_XPC);
- M_LDA(REG_SP, REG_SP, stackframesize * 4); /* remove stackframe */
+ M_LDA(REG_SP, REG_SP, cd->stackframesize * 4); /* remove stackframe */
/* check for exception */
M_MTCTR(REG_ITMP3);
M_RTS;
- /* generate patcher stub call code */
-
- {
- patchref *pref;
- u4 mcode;
- u1 *savedmcodeptr;
- u1 *tmpmcodeptr;
-
- for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
- /* Get machine code which is patched back in later. The
- call is 1 instruction word long. */
-
- tmpmcodeptr = cd->mcodebase + pref->branchpos;
-
- mcode = *((u4 *) tmpmcodeptr);
-
- /* Patch in the call to call the following code (done at
- compile time). */
+ /* generate patcher stubs */
- savedmcodeptr = cd->mcodeptr; /* save current mcodeptr */
- cd->mcodeptr = tmpmcodeptr; /* set mcodeptr to patch position */
-
- disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
- M_BL(disp);
-
- cd->mcodeptr = savedmcodeptr; /* restore the current mcodeptr */
-
- /* create stack frame - keep stack 16-byte aligned */
-
- M_AADD_IMM(REG_SP, -8 * 4, REG_SP);
-
- /* move return address onto stack */
-
- M_MFLR(REG_ZERO);
- M_AST(REG_ZERO, REG_SP, 5 * 4);
-
- /* move pointer to java_objectheader onto stack */
-
-#if defined(ENABLE_THREADS)
- /* order reversed because of data segment layout */
-
- (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_LDA(REG_ITMP3, REG_PV, disp);
- M_AST(REG_ITMP3, REG_SP, 4 * 4);
-#else
- /* do nothing */
-#endif
-
- /* move machine code onto stack */
-
- disp = dseg_add_s4(cd, mcode);
- M_ILD(REG_ITMP3, REG_PV, disp);
- M_IST(REG_ITMP3, REG_SP, 3 * 4);
-
- /* move class/method/field reference onto stack */
-
- disp = dseg_add_address(cd, pref->ref);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST(REG_ITMP3, REG_SP, 2 * 4);
-
- /* move data segment displacement onto stack */
-
- disp = dseg_add_s4(cd, pref->disp);
- M_ILD(REG_ITMP3, REG_PV, disp);
- M_IST(REG_ITMP3, REG_SP, 1 * 4);
-
- /* move patcher function pointer onto stack */
-
- disp = dseg_add_functionptr(cd, pref->patcher);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_AST(REG_ITMP3, REG_SP, 0 * 4);
-
- disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
- M_ALD(REG_ITMP3, REG_PV, disp);
- M_MTCTR(REG_ITMP3);
- M_RTS;
- }
- }
+ emit_patcher_stubs(jd);
codegen_finish(jd);
}
-void codegen_trace_args(jitdata *jd, s4 stackframesize, bool nativestub)
-{
- methodinfo *m;
- codegendata *cd;
- registerdata *rd;
- s4 s1, p, t, d;
- int stack_off;
- int stack_size;
- methoddesc *md;
-
- /* get required compiler data */
-
- m = jd->m;
- cd = jd->cd;
- rd = jd->rd;
-
- md = m->parseddesc;
-
- if (!nativestub)
- M_MFLR(REG_ITMP3);
- /* Build up Stackframe for builtin_trace_args call (a multiple of 16) */
- /* For Darwin: */
- /* LA + TRACE_ARGS_NUM u8 args + methodinfo + LR */
- /* LA_SIZE(=6*4) + 8*8 + 4 + 4 + 0(Padding) */
- /* 6 * 4 + 8 * 8 + 2 * 4 = 12 * 8 = 6 * 16 */
- /* For Linux: */
- /* LA + (TRACE_ARGS_NUM - INT_ARG_CNT/2) u8 args + methodinfo */
- /* + INT_ARG_CNT * 4 ( save integer registers) + LR + 8 + 8 (Padding) */
- /* LA_SIZE(=2*4) + 4 * 8 + 4 + 8 * 4 + 4 + 8 */
- /* 2 * 4 + 4 * 8 + 10 * 4 + 1 * 8 + 8= 12 * 8 = 6 * 16 */
-
- /* in nativestubs no Place to save the LR (Link Register) would be needed */
- /* but since the stack frame has to be aligned the 4 Bytes would have to */
- /* be padded again */
-
-#if defined(__DARWIN__)
- stack_size = LA_SIZE + (TRACE_ARGS_NUM + 1) * 8;
-#else
- stack_size = 6 * 16;
-#endif
- M_LDA(REG_SP, REG_SP, -stack_size);
-
- /* Save LR */
- if (!nativestub)
- M_IST(REG_ITMP3, REG_SP, LA_SIZE + TRACE_ARGS_NUM * 8 + 1 * 4);
-
- M_CLR(REG_ITMP1); /* clear help register */
-
- /* save up to TRACE_ARGS_NUM arguments into the reserved stack space */
-#if defined(__DARWIN__)
- /* Copy Params starting from first to Stack */
- /* since TRACE_ARGS == INT_ARG_CNT all used integer argument regs */
- /* are saved */
- p = 0;
-#else
- /* Copy Params starting from fifth to Stack (INT_ARG_CNT/2) are in */
- /* integer argument regs */
- /* all integer argument registers have to be saved */
- for (p = 0; p < 8; p++) {
- d = rd->argintregs[p];
- /* save integer argument registers */
- M_IST(d, REG_SP, LA_SIZE + 4 * 8 + 4 + p * 4);
- }
- p = 4;
-#endif
- stack_off = LA_SIZE;
- for (; p < md->paramcount && p < TRACE_ARGS_NUM; p++, stack_off += 8) {
- t = md->paramtypes[p].type;
- if (IS_INT_LNG_TYPE(t)) {
- if (!md->params[p].inmemory) { /* Param in Arg Reg */
- if (IS_2_WORD_TYPE(t)) {
- M_IST(rd->argintregs[GET_HIGH_REG(md->params[p].regoff)]
- , REG_SP, stack_off);
- M_IST(rd->argintregs[GET_LOW_REG(md->params[p].regoff)]
- , REG_SP, stack_off + 4);
- } else {
- M_IST(REG_ITMP1, REG_SP, stack_off);
- M_IST(rd->argintregs[md->params[p].regoff]
- , REG_SP, stack_off + 4);
- }
- } else { /* Param on Stack */
- s1 = (md->params[p].regoff + stackframesize) * 4
- + stack_size;
- if (IS_2_WORD_TYPE(t)) {
- M_ILD(REG_ITMP2, REG_SP, s1);
- M_IST(REG_ITMP2, REG_SP, stack_off);
- M_ILD(REG_ITMP2, REG_SP, s1 + 4);
- M_IST(REG_ITMP2, REG_SP, stack_off + 4);
- } else {
- M_IST(REG_ITMP1, REG_SP, stack_off);
- M_ILD(REG_ITMP2, REG_SP, s1);
- M_IST(REG_ITMP2, REG_SP, stack_off + 4);
- }
- }
- } else { /* IS_FLT_DBL_TYPE(t) */
- if (!md->params[p].inmemory) { /* in Arg Reg */
- s1 = rd->argfltregs[md->params[p].regoff];
- if (!IS_2_WORD_TYPE(t)) {
- M_IST(REG_ITMP1, REG_SP, stack_off);
- M_FST(s1, REG_SP, stack_off + 4);
- } else {
- M_DST(s1, REG_SP, stack_off);
- }
- } else { /* on Stack */
- /* this should not happen */
- }
- }
- }
-
- /* load first 4 (==INT_ARG_CNT/2) arguments into integer registers */
-#if defined(__DARWIN__)
- for (p = 0; p < 8; p++) {
- d = rd->argintregs[p];
- M_ILD(d, REG_SP, LA_SIZE + p * 4);
- }
-#else
- /* LINUX */
- /* Set integer and float argument registers vor trace_args call */
- /* offset to saved integer argument registers */
- stack_off = LA_SIZE + 4 * 8 + 4;
- for (p = 0; (p < 4) && (p < md->paramcount); p++) {
- t = md->paramtypes[p].type;
- if (IS_INT_LNG_TYPE(t)) {
- /* "stretch" int types */
- if (!IS_2_WORD_TYPE(t)) {
- M_CLR(rd->argintregs[2 * p]);
- M_ILD(rd->argintregs[2 * p + 1], REG_SP,stack_off);
- stack_off += 4;
- } else {
- M_ILD(rd->argintregs[2 * p + 1], REG_SP,stack_off + 4);
- M_ILD(rd->argintregs[2 * p], REG_SP,stack_off);
- stack_off += 8;
- }
- } else { /* Float/Dbl */
- if (!md->params[p].inmemory) { /* Param in Arg Reg */
- /* use reserved Place on Stack (sp + 5 * 16) to copy */
- /* float/double arg reg to int reg */
- s1 = rd->argfltregs[md->params[p].regoff];
- if (!IS_2_WORD_TYPE(t)) {
- M_FST(s1, REG_SP, 5 * 16);
- M_ILD(rd->argintregs[2 * p + 1], REG_SP, 5 * 16);
- M_CLR(rd->argintregs[2 * p]);
- } else {
- M_DST(s1, REG_SP, 5 * 16);
- M_ILD(rd->argintregs[2 * p + 1], REG_SP, 5 * 16 + 4);
- M_ILD(rd->argintregs[2 * p], REG_SP, 5 * 16);
- }
- }
- }
- }
-#endif
-
- /* put methodinfo pointer on Stackframe */
- p = dseg_add_address(cd, m);
- M_ALD(REG_ITMP1, REG_PV, p);
-#if defined(__DARWIN__)
- M_AST(REG_ITMP1, REG_SP, LA_SIZE + TRACE_ARGS_NUM * 8);
-#else
- M_AST(REG_ITMP1, REG_SP, LA_SIZE + 4 * 8);
-#endif
- p = dseg_add_functionptr(cd, builtin_trace_args);
- M_ALD(REG_ITMP2, REG_PV, p);
- M_MTCTR(REG_ITMP2);
- M_JSR;
-
-#if defined(__DARWIN__)
- /* restore integer argument registers from the reserved stack space */
-
- stack_off = LA_SIZE;
- for (p = 0; p < md->paramcount && p < TRACE_ARGS_NUM;
- p++, stack_off += 8) {
- t = md->paramtypes[p].type;
-
- if (IS_INT_LNG_TYPE(t)) {
- if (!md->params[p].inmemory) {
- if (IS_2_WORD_TYPE(t)) {
- M_ILD(rd->argintregs[GET_HIGH_REG(md->params[p].regoff)]
- , REG_SP, stack_off);
- M_ILD(rd->argintregs[GET_LOW_REG(md->params[p].regoff)]
- , REG_SP, stack_off + 4);
- } else {
- M_ILD(rd->argintregs[md->params[p].regoff]
- , REG_SP, stack_off + 4);
- }
- }
- }
- }
-#else
- /* LINUX */
- for (p = 0; p < 8; p++) {
- d = rd->argintregs[p];
- /* save integer argument registers */
- M_ILD(d, REG_SP, LA_SIZE + 4 * 8 + 4 + p * 4);
- }
-#endif
-
- if (!nativestub)
- M_ILD(REG_ITMP3, REG_SP, LA_SIZE + TRACE_ARGS_NUM * 8 + 1 * 4);
-
- M_LDA(REG_SP, REG_SP, stack_size);
-
- if (!nativestub)
- M_MTLR(REG_ITMP3);
-}
-
-
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
#include "md-abi.h"
+#include "vm/jit/powerpc/codegen.h"
+
+#include "vm/builtin.h"
+#include "vm/jit/asmpart.h"
#include "vm/jit/dseg.h"
#include "vm/jit/emit.h"
#include "vm/jit/jit.h"
-#include "vm/jit/powerpc/codegen.h"
+#include "vm/jit/replace.h"
/* code generation functions **************************************************/
}
+/* emit_exception_stubs ********************************************************
+
+ Generates the code for the exception stubs.
+
+*******************************************************************************/
+
+void emit_exception_stubs(jitdata *jd)
+{
+ codegendata *cd;
+ registerdata *rd;
+ exceptionref *eref;
+ s4 targetdisp;
+ s4 disp;
+
+ /* get required compiler data */
+
+ cd = jd->cd;
+ rd = jd->rd;
+
+ /* generate exception stubs */
+
+ targetdisp = 0;
+
+ for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
+ gen_resolvebranch(cd->mcodebase + eref->branchpos,
+ eref->branchpos, cd->mcodeptr - cd->mcodebase);
+
+ MCODECHECK(100);
+
+ /* Move the value register to a temporary register, if
+ there is the need for it. */
+
+ if (eref->reg != -1)
+ M_MOV(eref->reg, REG_ITMP1);
+
+ /* calcuate exception address */
+
+ M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
+
+ /* move function to call into REG_ITMP3 */
+
+ disp = dseg_add_functionptr(cd, eref->function);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+
+ if (targetdisp == 0) {
+ targetdisp = ((u4 *) cd->mcodeptr) - ((u4 *) cd->mcodebase);
+
+ if (jd->isleafmethod) {
+ M_MFLR(REG_ZERO);
+ M_AST(REG_ZERO, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
+ }
+
+ M_MOV(REG_PV, rd->argintregs[0]);
+ M_MOV(REG_SP, rd->argintregs[1]);
+
+ if (jd->isleafmethod)
+ M_MOV(REG_ZERO, rd->argintregs[2]);
+ else
+ M_ALD(rd->argintregs[2],
+ REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
+
+ M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
+ M_MOV(REG_ITMP1, rd->argintregs[4]);
+
+ M_STWU(REG_SP, REG_SP, -(LA_SIZE + 6 * 4));
+ M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 4);
+
+ M_MTCTR(REG_ITMP3);
+ M_JSR;
+ M_MOV(REG_RESULT, REG_ITMP1_XPTR);
+
+ M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 4);
+ M_IADD_IMM(REG_SP, LA_SIZE + 6 * 4, REG_SP);
+
+ if (jd->isleafmethod) {
+ /* XXX FIXME: REG_ZERO can cause problems here! */
+ assert(cd->stackframesize * 4 <= 32767);
+
+ M_ALD(REG_ZERO, REG_SP, cd->stackframesize * 4 + LA_LR_OFFSET);
+ M_MTLR(REG_ZERO);
+ }
+
+ disp = dseg_add_functionptr(cd, asm_handle_exception);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+ M_MTCTR(REG_ITMP3);
+ M_RTS;
+ }
+ else {
+ disp = (((u4 *) cd->mcodebase) + targetdisp) -
+ (((u4 *) cd->mcodeptr) + 1);
+ M_BR(disp);
+ }
+ }
+}
+
+
+/* emit_patcher_stubs **********************************************************
+
+ Generates the code for the patcher stubs.
+
+*******************************************************************************/
+
+void emit_patcher_stubs(jitdata *jd)
+{
+ codegendata *cd;
+ patchref *pref;
+ u4 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(100);
+
+ /* Get machine code which is patched back in later. The
+ call is 1 instruction word long. */
+
+ tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
+
+ mcode = *((u4 *) tmpmcodeptr);
+
+ /* Patch in the call to call the following code (done at
+ compile time). */
+
+ savedmcodeptr = cd->mcodeptr; /* save current mcodeptr */
+ cd->mcodeptr = tmpmcodeptr; /* set mcodeptr to patch position */
+
+ disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
+ M_BR(disp);
+
+ cd->mcodeptr = savedmcodeptr; /* restore the current mcodeptr */
+
+ /* create stack frame - keep stack 16-byte aligned */
+
+ M_AADD_IMM(REG_SP, -8 * 4, REG_SP);
+
+ /* calculate return address and move it onto the stack */
+
+ M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
+ M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 4);
+
+ /* move pointer to java_objectheader onto stack */
+
+#if defined(ENABLE_THREADS)
+ /* order reversed because of data segment layout */
+
+ (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_LDA(REG_ITMP3, REG_PV, disp);
+ M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 4);
+#else
+ /* do nothing */
+#endif
+
+ /* move machine code onto stack */
+
+ disp = dseg_add_s4(cd, mcode);
+ M_ILD(REG_ITMP3, REG_PV, disp);
+ M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 4);
+
+ /* move class/method/field reference onto stack */
+
+ disp = dseg_add_address(cd, pref->ref);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+ M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 4);
+
+ /* move data segment displacement onto stack */
+
+ disp = dseg_add_s4(cd, pref->disp);
+ M_ILD(REG_ITMP3, REG_PV, disp);
+ M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 4);
+
+ /* move patcher function pointer onto stack */
+
+ disp = dseg_add_functionptr(cd, pref->patcher);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+ M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
+
+ if (targetdisp == 0) {
+ targetdisp = ((u4 *) cd->mcodeptr) - ((u4 *) cd->mcodebase);
+
+ disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+ M_MTCTR(REG_ITMP3);
+ M_RTS;
+ }
+ else {
+ disp = (((u4 *) cd->mcodebase) + targetdisp) -
+ (((u4 *) cd->mcodeptr) + 1);
+ M_BR(disp);
+ }
+ }
+}
+
+
+/* emit_replacement_stubs ******************************************************
+
+ Generates the code for the replacement stubs.
+
+*******************************************************************************/
+
+void emit_replacement_stubs(jitdata *jd)
+{
+ codegendata *cd;
+ codeinfo *code;
+ rplpoint *rplp;
+ u1 *savedmcodeptr;
+ s4 disp;
+ s4 i;
+
+ /* get required compiler data */
+
+ cd = jd->cd;
+ code = jd->code;
+
+ rplp = code->rplpoints;
+
+ for (i = 0; i < code->rplpointcount; ++i, ++rplp) {
+ /* check code segment size */
+
+ MCODECHECK(100);
+
+ /* note start of stub code */
+
+ rplp->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
+
+ /* make machine code for patching */
+
+ savedmcodeptr = cd->mcodeptr;
+ cd->mcodeptr = (u1 *) &(rplp->mcode) + 1; /* big-endian */
+
+ disp = (ptrint) ((s4 *) rplp->outcode - (s4 *) rplp->pc) - 1;
+ M_BR(disp);
+
+ cd->mcodeptr = savedmcodeptr;
+
+ /* create stack frame - keep 16-byte aligned */
+
+ M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
+
+ /* push address of `rplpoint` struct */
+
+ disp = dseg_add_address(cd, rplp);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+ M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
+
+ /* jump to replacement function */
+
+ disp = dseg_add_functionptr(cd, asm_replacement_out);
+ M_ALD(REG_ITMP3, REG_PV, disp);
+ M_MTCTR(REG_ITMP3);
+ M_RTS;
+ }
+}
+
+
+/* emit_verbosecall_enter ******************************************************
+
+ Generates the code for the call trace.
+
+*******************************************************************************/
+
+void emit_verbosecall_enter(jitdata *jd)
+{
+ methodinfo *m;
+ codegendata *cd;
+ registerdata *rd;
+ s4 s1, p, t, d;
+ int stack_off;
+ int stack_size;
+ methoddesc *md;
+
+ /* get required compiler data */
+
+ m = jd->m;
+ cd = jd->cd;
+ rd = jd->rd;
+
+ md = m->parseddesc;
+
+ /* Build up Stackframe for builtin_trace_args call (a multiple of 16) */
+ /* For Darwin: */
+ /* LA + TRACE_ARGS_NUM u8 args + methodinfo + LR */
+ /* LA_SIZE(=6*4) + 8*8 + 4 + 4 + 0(Padding) */
+ /* 6 * 4 + 8 * 8 + 2 * 4 = 12 * 8 = 6 * 16 */
+ /* For Linux: */
+ /* LA + (TRACE_ARGS_NUM - INT_ARG_CNT/2) u8 args + methodinfo */
+ /* + INT_ARG_CNT * 4 ( save integer registers) + LR + 8 + 8 (Padding) */
+ /* LA_SIZE(=2*4) + 4 * 8 + 4 + 8 * 4 + 4 + 8 */
+ /* 2 * 4 + 4 * 8 + 10 * 4 + 1 * 8 + 8= 12 * 8 = 6 * 16 */
+
+ /* in nativestubs no Place to save the LR (Link Register) would be needed */
+ /* but since the stack frame has to be aligned the 4 Bytes would have to */
+ /* be padded again */
+
+#if defined(__DARWIN__)
+ stack_size = LA_SIZE + (TRACE_ARGS_NUM + 1) * 8;
+#else
+ stack_size = 6 * 16;
+#endif
+
+ /* mark trace code */
+
+ M_NOP;
+
+ M_MFLR(REG_ZERO);
+ M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
+ M_STWU(REG_SP, REG_SP, -stack_size);
+
+ M_CLR(REG_ITMP1); /* clear help register */
+
+ /* save up to TRACE_ARGS_NUM arguments into the reserved stack space */
+#if defined(__DARWIN__)
+ /* Copy Params starting from first to Stack */
+ /* since TRACE_ARGS == INT_ARG_CNT all used integer argument regs */
+ /* are saved */
+ p = 0;
+#else
+ /* Copy Params starting from fifth to Stack (INT_ARG_CNT/2) are in */
+ /* integer argument regs */
+ /* all integer argument registers have to be saved */
+ for (p = 0; p < 8; p++) {
+ d = rd->argintregs[p];
+ /* save integer argument registers */
+ M_IST(d, REG_SP, LA_SIZE + 4 * 8 + 4 + p * 4);
+ }
+ p = 4;
+#endif
+ stack_off = LA_SIZE;
+ for (; p < md->paramcount && p < TRACE_ARGS_NUM; p++, stack_off += 8) {
+ t = md->paramtypes[p].type;
+ if (IS_INT_LNG_TYPE(t)) {
+ if (!md->params[p].inmemory) { /* Param in Arg Reg */
+ if (IS_2_WORD_TYPE(t)) {
+ M_IST(rd->argintregs[GET_HIGH_REG(md->params[p].regoff)]
+ , REG_SP, stack_off);
+ M_IST(rd->argintregs[GET_LOW_REG(md->params[p].regoff)]
+ , REG_SP, stack_off + 4);
+ } else {
+ M_IST(REG_ITMP1, REG_SP, stack_off);
+ M_IST(rd->argintregs[md->params[p].regoff]
+ , REG_SP, stack_off + 4);
+ }
+ } else { /* Param on Stack */
+ s1 = (md->params[p].regoff + cd->stackframesize) * 4
+ + stack_size;
+ if (IS_2_WORD_TYPE(t)) {
+ M_ILD(REG_ITMP2, REG_SP, s1);
+ M_IST(REG_ITMP2, REG_SP, stack_off);
+ M_ILD(REG_ITMP2, REG_SP, s1 + 4);
+ M_IST(REG_ITMP2, REG_SP, stack_off + 4);
+ } else {
+ M_IST(REG_ITMP1, REG_SP, stack_off);
+ M_ILD(REG_ITMP2, REG_SP, s1);
+ M_IST(REG_ITMP2, REG_SP, stack_off + 4);
+ }
+ }
+ } else { /* IS_FLT_DBL_TYPE(t) */
+ if (!md->params[p].inmemory) { /* in Arg Reg */
+ s1 = rd->argfltregs[md->params[p].regoff];
+ if (!IS_2_WORD_TYPE(t)) {
+ M_IST(REG_ITMP1, REG_SP, stack_off);
+ M_FST(s1, REG_SP, stack_off + 4);
+ } else {
+ M_DST(s1, REG_SP, stack_off);
+ }
+ } else { /* on Stack */
+ /* this should not happen */
+ }
+ }
+ }
+
+ /* load first 4 (==INT_ARG_CNT/2) arguments into integer registers */
+#if defined(__DARWIN__)
+ for (p = 0; p < 8; p++) {
+ d = rd->argintregs[p];
+ M_ILD(d, REG_SP, LA_SIZE + p * 4);
+ }
+#else
+ /* LINUX */
+ /* Set integer and float argument registers vor trace_args call */
+ /* offset to saved integer argument registers */
+ stack_off = LA_SIZE + 4 * 8 + 4;
+ for (p = 0; (p < 4) && (p < md->paramcount); p++) {
+ t = md->paramtypes[p].type;
+ if (IS_INT_LNG_TYPE(t)) {
+ /* "stretch" int types */
+ if (!IS_2_WORD_TYPE(t)) {
+ M_CLR(rd->argintregs[2 * p]);
+ M_ILD(rd->argintregs[2 * p + 1], REG_SP,stack_off);
+ stack_off += 4;
+ } else {
+ M_ILD(rd->argintregs[2 * p + 1], REG_SP,stack_off + 4);
+ M_ILD(rd->argintregs[2 * p], REG_SP,stack_off);
+ stack_off += 8;
+ }
+ } else { /* Float/Dbl */
+ if (!md->params[p].inmemory) { /* Param in Arg Reg */
+ /* use reserved Place on Stack (sp + 5 * 16) to copy */
+ /* float/double arg reg to int reg */
+ s1 = rd->argfltregs[md->params[p].regoff];
+ if (!IS_2_WORD_TYPE(t)) {
+ M_FST(s1, REG_SP, 5 * 16);
+ M_ILD(rd->argintregs[2 * p + 1], REG_SP, 5 * 16);
+ M_CLR(rd->argintregs[2 * p]);
+ } else {
+ M_DST(s1, REG_SP, 5 * 16);
+ M_ILD(rd->argintregs[2 * p + 1], REG_SP, 5 * 16 + 4);
+ M_ILD(rd->argintregs[2 * p], REG_SP, 5 * 16);
+ }
+ }
+ }
+ }
+#endif
+
+ /* put methodinfo pointer on Stackframe */
+ p = dseg_add_address(cd, m);
+ M_ALD(REG_ITMP1, REG_PV, p);
+#if defined(__DARWIN__)
+ M_AST(REG_ITMP1, REG_SP, LA_SIZE + TRACE_ARGS_NUM * 8);
+#else
+ M_AST(REG_ITMP1, REG_SP, LA_SIZE + 4 * 8);
+#endif
+ p = dseg_add_functionptr(cd, builtin_trace_args);
+ M_ALD(REG_ITMP2, REG_PV, p);
+ M_MTCTR(REG_ITMP2);
+ M_JSR;
+
+#if defined(__DARWIN__)
+ /* restore integer argument registers from the reserved stack space */
+
+ stack_off = LA_SIZE;
+ for (p = 0; p < md->paramcount && p < TRACE_ARGS_NUM;
+ p++, stack_off += 8) {
+ t = md->paramtypes[p].type;
+
+ if (IS_INT_LNG_TYPE(t)) {
+ if (!md->params[p].inmemory) {
+ if (IS_2_WORD_TYPE(t)) {
+ M_ILD(rd->argintregs[GET_HIGH_REG(md->params[p].regoff)]
+ , REG_SP, stack_off);
+ M_ILD(rd->argintregs[GET_LOW_REG(md->params[p].regoff)]
+ , REG_SP, stack_off + 4);
+ } else {
+ M_ILD(rd->argintregs[md->params[p].regoff]
+ , REG_SP, stack_off + 4);
+ }
+ }
+ }
+ }
+#else
+ /* LINUX */
+ for (p = 0; p < 8; p++) {
+ d = rd->argintregs[p];
+ /* save integer argument registers */
+ M_ILD(d, REG_SP, LA_SIZE + 4 * 8 + 4 + p * 4);
+ }
+#endif
+
+ M_ALD(REG_ZERO, REG_SP, stack_size + LA_LR_OFFSET);
+ M_MTLR(REG_ZERO);
+ M_LDA(REG_SP, REG_SP, stack_size);
+
+ /* mark trace code */
+
+ M_NOP;
+}
+
+
+/* emit_verbosecall_exit *******************************************************
+
+ Generates the code for the call trace.
+
+*******************************************************************************/
+
+void emit_verbosecall_exit(jitdata *jd)
+{
+ methodinfo *m;
+ codegendata *cd;
+ registerdata *rd;
+ methoddesc *md;
+ s4 disp;
+
+ /* get required compiler data */
+
+ m = jd->m;
+ cd = jd->cd;
+ rd = jd->rd;
+
+ md = m->parseddesc;
+
+ /* mark trace code */
+
+ M_NOP;
+
+ 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_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);
+
+ /* keep this order */
+ switch (md->returntype.type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+#if defined(__DARWIN__)
+ M_MOV(REG_RESULT, rd->argintregs[2]);
+ M_CLR(rd->argintregs[1]);
+#else
+ M_MOV(REG_RESULT, rd->argintregs[3]);
+ M_CLR(rd->argintregs[2]);
+#endif
+ break;
+
+ case TYPE_LNG:
+#if defined(__DARWIN__)
+ M_MOV(REG_RESULT2, rd->argintregs[2]);
+ M_MOV(REG_RESULT, rd->argintregs[1]);
+#else
+ M_MOV(REG_RESULT2, rd->argintregs[3]);
+ M_MOV(REG_RESULT, rd->argintregs[2]);
+#endif
+ break;
+ }
+
+ M_FLTMOVE(REG_FRESULT, rd->argfltregs[0]);
+ M_FLTMOVE(REG_FRESULT, rd->argfltregs[1]);
+
+ disp = dseg_add_address(cd, m);
+ M_ALD(rd->argintregs[0], REG_PV, disp);
+
+ disp = dseg_add_functionptr(cd, builtin_displaymethodstop);
+ M_ALD(REG_ITMP2, REG_PV, disp);
+ M_MTCTR(REG_ITMP2);
+ M_JSR;
+
+ /* restore return registers */
+
+ 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);
+
+ M_ALD(REG_ZERO, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 4) * 4 + LA_LR_OFFSET);
+ M_MTLR(REG_ZERO);
+ M_LDA(REG_SP, REG_SP, LA_SIZE + (1 + 2 + 2 + 1 + 4) * 4);
+
+ /* mark trace code */
+
+ M_NOP;
+}
+
+
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
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