Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: arch.h 5330 2006-09-05 18:43:12Z edwin $
-
*/
#include "vm/exceptions.h"
#include "vm/jit/asmpart.h"
#include "vm/builtin.h"
+#include "vm/jit/trace.h"
#include "mm/memory.h"
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;
}
}
-/* emit_replacement_stubs ******************************************************
-
- Generates the code for the replacement stubs.
-
-*******************************************************************************/
-
-#if defined(ENABLE_REPLACEMENT)
-void emit_replacement_stubs(jitdata *jd)
-{
- codegendata *cd;
- codeinfo *code;
- rplpoint *rplp;
- s4 i;
- s4 branchmpc;
- s4 outcode;
-
- /* get required compiler data */
-
- cd = jd->cd;
- code = jd->code;
-
- rplp = code->rplpoints;
-
- /* store beginning of replacement stubs */
-
- code->replacementstubs = (u1*) (cd->mcodeptr - cd->mcodebase);
-
- for (i = 0; i < code->rplpointcount; ++i, ++rplp) {
- /* do not generate stubs for non-trappable points */
-
- if (rplp->flags & RPLPOINT_FLAG_NOTRAP)
- continue;
-
- M_JSR_IMM(0);
-#if 0
- /* check code segment size */
-
- MCODECHECK(512);
-
- /* note start of stub code */
-
- outcode = (s4) (cd->mcodeptr - cd->mcodebase);
-
- /* push address of `rplpoint` struct */
-
- M_PUSH_IMM(rplp);
-
- /* jump to replacement function */
-
- M_PUSH_IMM(asm_replacement_out);
- M_RET;
-
- /* add jump reference for COUNTDOWN points */
-
- if (rplp->flags & RPLPOINT_FLAG_COUNTDOWN) {
-
- branchmpc = (s4)rplp->pc + (7 + 6);
-
- md_codegen_patch_branch(cd, branchmpc, (s4) outcode);
- }
-
- assert(((cd->mcodeptr - cd->mcodebase) - outcode) == REPLACEMENT_STUB_SIZE);
-#endif
- }
-}
-#endif /* defined(ENABLE_REPLACEMENT) */
-
-
#if !defined(NDEBUG)
/*
codegendata *cd;
registerdata *rd;
methoddesc *md;
- s4 disp,i,t;
-
if (!JITDATA_HAS_FLAG_VERBOSECALL(jd))
return;
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);
-
- disp = 4*4 + 8*2 + 4; /* points to old argument stack initially */
-#else
- disp = 4*4 + 4;
#endif
- /* 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);
-
- /* 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 += 8;
- }
-
- /* 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;
-
- /* copy from original argument stack */
- M_ILD(REG_ITMP1, REG_SP, disp);
- M_ILD(REG_ITMP2, REG_SP, disp-4);
- M_IPUSH(REG_ITMP2);
- M_IPUSH(REG_ITMP1);
- } 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);
/* 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;
-#if !defined(ENABLE_SOFTFLOAT)
- M_AADD_IMM(-8, REG_SP);
- M_FSTORE(REG_D1, REG_SP, 0);
-#endif
+ /* to store result on stack */
+ M_AADD_IMM(-8, REG_SP); /* create space for array */
- M_IPUSH_IMM(m); /* push methodinfo */
+ 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;
-#if !defined(ENABLE_SOFTFLOAT)
- M_AADD_IMM(-3*4, REG_SP);
- M_FST(REG_D0, REG_SP, 8);
- M_DST(REG_D0, REG_SP, 0);
-#else
- M_IPUSH_IMM(0);
+ case TYPE_LNG:
+ #if defined(ENABLE_SOFTFLOAT)
+ case TYPE_DBL:
+ #endif
+ M_LST(REG_D1, REG_SP, 0);
+ break;
- M_IPUSH_IMM(0);
- M_IPUSH_IMM(0);
-#endif
+ #if !defined(ENABLE_SOFTFLOAT)
+ case TYPE_FLT: /* FIXME */
+ case TYPE_DBL: /* FIXME */
+ #endif
- M_IPUSH(GET_HIGH_REG(REG_RESULT_PACKED))
- M_IPUSH(GET_LOW_REG(REG_RESULT_PACKED)) /* push long result */
+ case TYPE_VOID: /* nothing */
+ break;
- M_JSR_IMM(builtin_verbosecall_exit);
+ default:
+ assert(0);
+ }
+
+ 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;
-#if !defined(ENABLE_SOFTFLOAT)
- M_DLD(REG_D0, REG_SP, 0)
- M_FLD(REG_D0, REG_SP, 8)
-#endif
- M_AADD_IMM(3*4 + 4, REG_SP);
+ case TYPE_LNG:
+ #if defined(ENABLE_SOFTFLOAT)
+ case TYPE_DBL:
+ #endif
+ M_LLD(REG_D1, REG_SP, 0);
+ break;
-#if !defined(ENABLE_SOFTFLOAT)
- M_FLOAD(REG_D1, REG_SP, 0)
- M_AADD_IMM(8, REG_SP);
-#endif
+ #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_NOP;
}
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);
}
}
+
+/* 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_ALD_INTERN(REG_ZERO, REG_ZERO, EXCEPTION_HARDWARE_ARRAYSTORE);*/
+ M_TRAP(EXCEPTION_HARDWARE_ARRAYSTORE);
+ }
+}
+
+
/* emit_nullpointer_check ******************************************************
Emit a NullPointerException check.
}
}
+/* 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(EXCEPTION_HARDWARE_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(EXCEPTION_HARDWARE_PATCHER);
+
+ return mcode;
+}
+
+
/*
* These are local overrides for various environment variables in Emacs.
projects / cacao.git / blobdiff