Authors: Andreas Krall
Christian Thalinger
- $Id: codegen.c 929 2004-02-26 00:20:02Z twisti $
+ $Id: codegen.c 950 2004-03-07 23:52:44Z twisti $
*/
int nregdescfloat[] = {
-/* REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_TMP, REG_TMP, REG_TMP, REG_TMP, */
-/* REG_RES, REG_RES, REG_RES, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, */
+ /* REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_TMP, REG_TMP, REG_TMP, REG_TMP, */
+ /* REG_RES, REG_RES, REG_RES, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, */
REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
REG_RES, REG_RES, REG_RES, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
REG_END
varinfo *var;
switch (v->varkind) {
- case TEMPVAR:
- if (!(v->flags & INMEMORY))
- return(v->regoff);
- break;
- case STACKVAR:
- var = &(interfaces[v->varnum][v->type]);
- v->regoff = var->regoff;
- if (!(var->flags & INMEMORY))
- return(var->regoff);
- break;
- case LOCALVAR:
- var = &(locals[v->varnum][v->type]);
- v->regoff = var->regoff;
- if (!(var->flags & INMEMORY))
- return(var->regoff);
- break;
- case ARGVAR:
- v->regoff = v->varnum;
- if (IS_FLT_DBL_TYPE(v->type)) {
- if (v->varnum < FLT_ARG_CNT) {
- v->regoff = argfltregs[v->varnum];
- return(argfltregs[v->varnum]);
- }
- } else {
- if (v->varnum < INT_ARG_CNT) {
- v->regoff = argintregs[v->varnum];
- return(argintregs[v->varnum]);
- }
+ case TEMPVAR:
+ if (!(v->flags & INMEMORY))
+ return(v->regoff);
+ break;
+ case STACKVAR:
+ var = &(interfaces[v->varnum][v->type]);
+ v->regoff = var->regoff;
+ if (!(var->flags & INMEMORY))
+ return(var->regoff);
+ break;
+ case LOCALVAR:
+ var = &(locals[v->varnum][v->type]);
+ v->regoff = var->regoff;
+ if (!(var->flags & INMEMORY))
+ return(var->regoff);
+ break;
+ case ARGVAR:
+ v->regoff = v->varnum;
+ if (IS_FLT_DBL_TYPE(v->type)) {
+ if (v->varnum < FLT_ARG_CNT) {
+ v->regoff = argfltregs[v->varnum];
+ return(argfltregs[v->varnum]);
+ }
+ } else {
+ if (v->varnum < INT_ARG_CNT) {
+ v->regoff = argintregs[v->varnum];
+ return(argintregs[v->varnum]);
}
- v->regoff -= INT_ARG_CNT;
- break;
}
+ v->regoff -= INT_ARG_CNT;
+ break;
+ }
v->flags |= INMEMORY;
return tempregnum;
}
void catch_NullPointerException(int sig, siginfo_t *siginfo, void *_p)
{
sigset_t nsig;
-/* int instr; */
-/* long faultaddr; */
+ /* int instr; */
+ /* long faultaddr; */
struct ucontext *_uc = (struct ucontext *) _p;
struct sigcontext *sigctx = (struct sigcontext *) &_uc->uc_mcontext;
/* faultaddr = sigctx->sc_regs[(instr >> 16) & 0x1f]; */
/* if (faultaddr == 0) { */
- signal(sig, (void *) catch_NullPointerException); /* reinstall handler */
- sigemptyset(&nsig);
- sigaddset(&nsig, sig);
- sigprocmask(SIG_UNBLOCK, &nsig, NULL); /* unblock signal */
- sigctx->rax = (long) proto_java_lang_NullPointerException; /* REG_ITMP1_XPTR */
- sigctx->r10 = sigctx->rip; /* REG_ITMP2_XPC */
- sigctx->rip = (long) asm_handle_exception;
+ signal(sig, (void *) catch_NullPointerException); /* reinstall handler */
+ sigemptyset(&nsig);
+ sigaddset(&nsig, sig);
+ sigprocmask(SIG_UNBLOCK, &nsig, NULL); /* unblock signal */
+
+ if (!proto_java_lang_NullPointerException) {
+ proto_java_lang_NullPointerException =
+ new_exception(string_java_lang_NullPointerException);
+ }
+
+ sigctx->rax = (s8) proto_java_lang_NullPointerException; /* REG_ITMP1_XPTR */
+ sigctx->r10 = sigctx->rip; /* REG_ITMP2_XPC */
+ sigctx->rip = (s8) asm_handle_exception;
- return;
+ return;
/* } else { */
/* faultaddr += (long) ((instr << 16) >> 16); */
struct ucontext *_uc = (struct ucontext *) _p;
struct sigcontext *sigctx = (struct sigcontext *) &_uc->uc_mcontext;
-
- classinfo *c;
- java_objectheader *p;
- methodinfo *m;
+ java_objectheader *xptr;
/* Reset signal handler - necessary for SysV, does no harm for BSD */
sigaddset(&nsig, sig);
sigprocmask(SIG_UNBLOCK, &nsig, NULL); /* unblock signal */
- c = loader_load_sysclass(NULL,utf_new_char("java/lang/ArithmeticException"));
- p = builtin_new(c);
- m = class_fetchmethod(c,
- utf_new_char("<init>"),
- utf_new_char("(Ljava/lang/String;)V"));
-
- asm_calljavafunction(m, p, javastring_new_char("/ by zero"), NULL, NULL);
+ xptr = new_exception_message(string_java_lang_ArithmeticException,
+ string_java_lang_ArithmeticException_message);
- sigctx->rax = (long) p; /* REG_ITMP1_XPTR */
+ sigctx->rax = (s8) xptr; /* REG_ITMP1_XPTR */
sigctx->r10 = sigctx->rip; /* REG_ITMP2_XPC */
- sigctx->rip = (long) asm_handle_exception;
+ sigctx->rip = (s8) asm_handle_exception;
return;
}
if (checkbounds) { \
x86_64_alul_membase_reg(X86_64_CMP, s1, OFFSET(java_arrayheader, size), s2); \
x86_64_jcc(X86_64_CC_AE, 0); \
- codegen_addxboundrefs(mcodeptr); \
+ codegen_addxboundrefs(mcodeptr, s2); \
}
case ICMD_ARRAYLENGTH: /* ..., arrayref ==> ..., (int) length */
for (; xboundrefs != NULL; xboundrefs = xboundrefs->next) {
if ((exceptiontablelength == 0) && (xcodeptr != NULL)) {
gen_resolvebranch(mcodebase + xboundrefs->branchpos,
- xboundrefs->branchpos, xcodeptr - mcodebase - (10 + 10 + 3));
+ xboundrefs->branchpos, xcodeptr - mcodebase - (3 + 10 + 10 + 3));
continue;
}
MCODECHECK(8);
- x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
+ /* move index register into REG_ITMP1 */
+ x86_64_mov_reg_reg(xboundrefs->reg, REG_ITMP1); /* 3 bytes */
+
+ x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
dseg_adddata(mcodeptr);
- x86_64_mov_imm_reg(xboundrefs->branchpos - 6, REG_ITMP1); /* 10 bytes */
- x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP1, REG_ITMP2_XPC); /* 3 bytes */
+ x86_64_mov_imm_reg(xboundrefs->branchpos - 6, REG_ITMP3); /* 10 bytes */
+ x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP3, REG_ITMP2_XPC); /* 3 bytes */
if (xcodeptr != NULL) {
- x86_64_jmp_imm((xcodeptr - mcodeptr) - 5);
+ x86_64_jmp_imm(xcodeptr - mcodeptr - 5);
} else {
xcodeptr = mcodeptr;
- x86_64_mov_imm_reg((s8) proto_java_lang_ArrayIndexOutOfBoundsException, REG_ITMP1_XPTR);
+ x86_64_alu_imm_reg(X86_64_SUB, 2 * 8, REG_SP);
+ x86_64_mov_reg_membase(REG_ITMP2_XPC, REG_SP, 0 * 8);
+ x86_64_mov_imm_reg((s8) string_java_lang_ArrayIndexOutOfBoundsException, argintregs[0]);
+ x86_64_mov_reg_reg(REG_ITMP1, argintregs[1]);
+ x86_64_mov_imm_reg((s8) new_exception_int, REG_ITMP3);
+ x86_64_call_reg(REG_ITMP3);
+ x86_64_mov_membase_reg(REG_SP, 0 * 8, REG_ITMP2_XPC);
+ x86_64_alu_imm_reg(X86_64_ADD, 2 * 8, REG_SP);
+
x86_64_mov_imm_reg((s8) asm_handle_exception, REG_ITMP3);
x86_64_jmp_reg(REG_ITMP3);
}
MCODECHECK(8);
- x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
+ x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
dseg_adddata(mcodeptr);
- x86_64_mov_imm_reg(xcheckarefs->branchpos - 6, REG_ITMP1); /* 10 bytes */
- x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP1, REG_ITMP2_XPC); /* 3 bytes */
+ x86_64_mov_imm_reg(xcheckarefs->branchpos - 6, REG_ITMP3); /* 10 bytes */
+ x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP3, REG_ITMP2_XPC); /* 3 bytes */
if (xcodeptr != NULL) {
- x86_64_jmp_imm((xcodeptr - mcodeptr) - 5);
+ x86_64_jmp_imm(xcodeptr - mcodeptr - 5);
} else {
xcodeptr = mcodeptr;
- x86_64_mov_imm_reg((s8) proto_java_lang_NegativeArraySizeException, REG_ITMP1_XPTR);
+ x86_64_alu_imm_reg(X86_64_SUB, 2 * 8, REG_SP);
+ x86_64_mov_reg_membase(REG_ITMP2_XPC, REG_SP, 0 * 8);
+ x86_64_mov_imm_reg((s8) string_java_lang_NegativeArraySizeException, argintregs[0]);
+ x86_64_mov_imm_reg((s8) new_exception, REG_ITMP3);
+ x86_64_call_reg(REG_ITMP3);
+ x86_64_mov_membase_reg(REG_SP, 0 * 8, REG_ITMP2_XPC);
+ x86_64_alu_imm_reg(X86_64_ADD, 2 * 8, REG_SP);
+
x86_64_mov_imm_reg((s8) asm_handle_exception, REG_ITMP3);
x86_64_jmp_reg(REG_ITMP3);
}
MCODECHECK(8);
- x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
+ x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
dseg_adddata(mcodeptr);
- x86_64_mov_imm_reg(xcastrefs->branchpos - 6, REG_ITMP1); /* 10 bytes */
- x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP1, REG_ITMP2_XPC); /* 3 bytes */
+ x86_64_mov_imm_reg(xcastrefs->branchpos - 6, REG_ITMP3); /* 10 bytes */
+ x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP3, REG_ITMP2_XPC); /* 3 bytes */
if (xcodeptr != NULL) {
- x86_64_jmp_imm((xcodeptr - mcodeptr) - 5);
+ x86_64_jmp_imm(xcodeptr - mcodeptr - 5);
} else {
xcodeptr = mcodeptr;
- x86_64_mov_imm_reg((s8) proto_java_lang_ClassCastException, REG_ITMP1_XPTR);
+ x86_64_alu_imm_reg(X86_64_SUB, 2 * 8, REG_SP);
+ x86_64_mov_reg_membase(REG_ITMP2_XPC, REG_SP, 0 * 8);
+ x86_64_mov_imm_reg((s8) string_java_lang_ClassCastException, argintregs[0]);
+ x86_64_mov_imm_reg((s8) new_exception, REG_ITMP3);
+ x86_64_call_reg(REG_ITMP3);
+ x86_64_mov_membase_reg(REG_SP, 0 * 8, REG_ITMP2_XPC);
+ x86_64_alu_imm_reg(X86_64_ADD, 2 * 8, REG_SP);
+
x86_64_mov_imm_reg((s8) asm_handle_exception, REG_ITMP3);
x86_64_jmp_reg(REG_ITMP3);
}
MCODECHECK(8);
- x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
+ x86_64_mov_imm_reg(0, REG_ITMP2_XPC); /* 10 bytes */
dseg_adddata(mcodeptr);
- x86_64_mov_imm_reg(xnullrefs->branchpos - 6, REG_ITMP1); /* 10 bytes */
- x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP1, REG_ITMP2_XPC); /* 3 bytes */
+ x86_64_mov_imm_reg(xnullrefs->branchpos - 6, REG_ITMP1); /* 10 bytes */
+ x86_64_alu_reg_reg(X86_64_ADD, REG_ITMP1, REG_ITMP2_XPC); /* 3 bytes */
if (xcodeptr != NULL) {
- x86_64_jmp_imm((xcodeptr - mcodeptr) - 5);
+ x86_64_jmp_imm(xcodeptr - mcodeptr - 5);
} else {
xcodeptr = mcodeptr;
- x86_64_mov_imm_reg((s8) proto_java_lang_NullPointerException, REG_ITMP1_XPTR);
+ x86_64_alu_imm_reg(X86_64_SUB, 2 * 8, REG_SP);
+ x86_64_mov_reg_membase(REG_ITMP2_XPC, REG_SP, 0 * 8);
+ x86_64_mov_imm_reg((s8) string_java_lang_NullPointerException, argintregs[0]);
+ x86_64_mov_imm_reg((s8) new_exception, REG_ITMP3);
+ x86_64_call_reg(REG_ITMP3);
+ x86_64_mov_membase_reg(REG_SP, 0 * 8, REG_ITMP2_XPC);
+ x86_64_alu_imm_reg(X86_64_ADD, 2 * 8, REG_SP);
+
x86_64_mov_imm_reg((s8) asm_handle_exception, REG_ITMP3);
x86_64_jmp_reg(REG_ITMP3);
}
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