/* src/vm/jit/codegen-common.h - architecture independent code generator stuff 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 This file is part of CACAO. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. $Id: codegen-common.h 7283 2007-02-04 19:41:14Z pm $ */ #ifndef _CODEGEN_COMMON_H #define _CODEGEN_COMMON_H /* forward typedefs ***********************************************************/ typedef struct codegen_critical_section_t codegen_critical_section_t; typedef struct codegendata codegendata; typedef struct jumpref jumpref; typedef struct dataref dataref; typedef struct exceptionref exceptionref; typedef struct patchref patchref; typedef struct linenumberref linenumberref; #include "config.h" #include "vm/types.h" #include "vm/global.h" #include "vm/jit/dseg.h" #include "vm/jit/jit.h" #include "vm/jit/reg.h" #include "vm/jit/code.h" #include "vm/jit/replace.h" #include "vmcore/descriptor.h" #include "vmcore/method.h" #include "vmcore/references.h" #define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */ #define DSEGINITSIZE (1<<12) /* 4 Kbyte data area initialization size */ #define NCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */ /* Register Pack/Unpack Macros ************************************************/ /* ATTENTION: Don't change the order where low and high bits are stored! At least mips32 relies in one case on that order. */ #define PACK_REGS(low,high) \ ( (((high) & 0x0000ffff) << 16) | ((low) & 0x0000ffff) ) #define GET_LOW_REG(a) ((a) & 0x0000ffff) #define GET_HIGH_REG(a) (((a) & 0xffff0000) >> 16) /* branch conditions **********************************************************/ #define BRANCH_UNCONDITIONAL -1 #define BRANCH_EQ (ICMD_IFEQ - ICMD_IFEQ) #define BRANCH_NE (ICMD_IFNE - ICMD_IFEQ) #define BRANCH_LT (ICMD_IFLT - ICMD_IFEQ) #define BRANCH_GE (ICMD_IFGE - ICMD_IFEQ) #define BRANCH_GT (ICMD_IFGT - ICMD_IFEQ) #define BRANCH_LE (ICMD_IFLE - ICMD_IFEQ) #define BRANCH_NAN 256 /************************* critical sections *********************************/ struct codegen_critical_section_t { codegen_critical_section_t *next; s4 mcodebegin; s4 mcodeend; s4 mcoderestart; }; struct codegendata { u1 *mcodebase; /* base pointer of code area */ u1 *mcodeend; /* pointer to end of code area */ s4 mcodesize; /* complete size of code area (bytes) */ u1 *mcodeptr; /* code generation pointer */ u1 *lastmcodeptr; /* last patcher position of basic block */ #if defined(ENABLE_INTRP) u1 *ncodebase; /* base pointer of native code area */ s4 ncodesize; /* complete size of native code area */ u1 *ncodeptr; /* native code generation pointer */ u4 lastinstwithoutdispatch; /* ~0 if there was a dispatch */ s4 lastpatcheroffset; /* -1 if current super has no patcher */ s4 dynsuperm; /* offsets of start of current dynamic ...*/ s4 dynsupern; /* ... superinstruction starts */ struct superstart *superstarts; /* list of supers without patchers */ #endif dsegentry *dseg; /* chain of data segment entries */ s4 dseglen; /* used size of data area (bytes) */ /* data area grows from top to bottom */ jumpref *jumpreferences; /* list of jumptable target addresses */ #if defined(__I386__) || defined(__X86_64__) || defined(__XDSPCORE__) || defined(ENABLE_INTRP) || defined(__S390__) dataref *datareferences; /* list of data segment references */ #endif exceptionref *exceptionrefs; /* list of exception branches */ /* list *patchrefs; */ patchref *patchrefs; linenumberref *linenumberreferences; /* list of line numbers and the */ /* program counters of their first */ /* instruction */ s4 linenumbertablesizepos; s4 linenumbertablestartpos; s4 linenumbertab; methodinfo *method; codegen_critical_section_t *threadcrit; /* List of critical code regions */ codegen_critical_section_t threadcritcurrent; s4 threadcritcount; /* Number of critical regions */ s4 maxstack; s4 stackframesize; /* stackframe size of this method */ #if defined(ENABLE_REPLACEMENT) rplpoint *replacementpoint; /* current replacement point */ #endif }; /* jumpref ********************************************************************/ struct jumpref { s4 tablepos; /* patching position in data segment */ basicblock *target; /* target basic block */ jumpref *next; /* next element in jumpref list */ }; /* dataref ********************************************************************/ struct dataref { s4 datapos; /* patching position in generated code */ dataref *next; /* next element in dataref list */ }; /* exceptionref ***************************************************************/ struct exceptionref { s4 branchpos; /* patching position in code segment */ s4 reg; /* used for ArrayIndexOutOfBounds index reg */ functionptr function; /* function pointer to generate exception */ exceptionref *next; /* next element in exceptionref list */ }; /* patchref *******************************************************************/ struct patchref { s4 branchpos; /* relative offset to method entrypoint */ s4 disp; /* displacement of ref in the data segment */ functionptr patcher; /* patcher function to call */ voidptr ref; /* reference passed */ /* listnode linkage; */ patchref *next; }; /* linenumberref **************************************************************/ struct linenumberref { s4 tablepos; /* patching position in data segment */ s4 linenumber; /* line number, used for inserting into the */ /* table and for validity checking */ /* -1......start of inlined body */ /* -2......end of inlined body */ /* <= -3...special entry with methodinfo * */ /* (see doc/inlining_stacktrace.txt) */ ptrint targetmpc; /* machine code program counter of first */ /* instruction for given line */ /* NOTE: for linenumber <= -3 this is a the */ /* (methodinfo *) of the inlined method */ linenumberref *next; /* next element in linenumberref list */ }; /* methodtree_element *********************************************************/ typedef struct methodtree_element methodtree_element; struct methodtree_element { u1 *startpc; u1 *endpc; }; /* function prototypes ********************************************************/ void codegen_init(void); void codegen_setup(jitdata *jd); void codegen_close(void); void codegen_increase(codegendata *cd); #if defined(ENABLE_INTRP) u1 *codegen_ncode_increase(codegendata *cd, u1 *ncodeptr); #endif void codegen_add_branch_ref(codegendata *cd, basicblock *target); /* XXX REMOVE ME: don't-break-trunk macro */ #define codegen_addreference codegen_add_branch_ref void codegen_resolve_branchrefs(codegendata *cd, basicblock *bptr); void codegen_add_arithmeticexception_ref(codegendata *cd); void codegen_add_arrayindexoutofboundsexception_ref(codegendata *cd, s4 reg); void codegen_add_arraystoreexception_ref(codegendata *cd); void codegen_add_classcastexception_ref(codegendata *cd, s4 reg); void codegen_add_nullpointerexception_ref(codegendata *cd); void codegen_add_fillinstacktrace_ref(codegendata *cd); void codegen_add_patch_ref(codegendata *cd, functionptr patcher, voidptr ref, s4 disp); /* XXX REMOVE ME: don't-break-trunk macro */ #define codegen_addpatchref codegen_add_patch_ref void codegen_insertmethod(u1 *startpc, u1 *endpc); u1 *codegen_get_pv_from_pc(u1 *pc); u1 *codegen_get_pv_from_pc_nocheck(u1 *pc); #if defined(ENABLE_REPLACEMENT) #if !defined(NDEBUG) void codegen_set_replacement_point_notrap(codegendata *cd, s4 type); void codegen_set_replacement_point(codegendata *cd, s4 type); #else void codegen_set_replacement_point_notrap(codegendata *cd); void codegen_set_replacement_point(codegendata *cd); #endif #endif /* defined(ENABLE_REPLACEMENT) */ void codegen_finish(jitdata *jd); codeinfo *codegen_createnativestub(functionptr f, methodinfo *m); #if defined(ENABLE_DISASSEMBLER) void codegen_disassemble_nativestub(methodinfo *m, u1 *start, u1 *end); #endif void codegen_start_native_call(u1 *datasp, u1 *pv, u1 *sp, u1 *ra); java_objectheader *codegen_finish_native_call(u1 *datasp); u1 *createcompilerstub(methodinfo *m); u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd); #if defined(ENABLE_INTRP) u1 *intrp_createcompilerstub(methodinfo *m); u1 *intrp_createnativestub(functionptr f, jitdata *jd, methoddesc *md); #endif void removecompilerstub(u1 *stub); void removenativestub(u1 *stub); s4 codegen_reg_of_var(u2 opcode, varinfo *v, s4 tempregnum); s4 codegen_reg_of_dst(jitdata *jd, instruction *iptr, s4 tempregnum); #if defined(ENABLE_THREADS) void codegen_threadcritrestart(codegendata *cd, int offset); void codegen_threadcritstart(codegendata *cd, int offset); void codegen_threadcritstop(codegendata *cd, int offset); #endif /* machine dependent functions */ void md_codegen_patch_branch(codegendata *cd, s4 branchmpc, s4 targetmpc); u1 *md_codegen_get_pv_from_pc(u1 *ra); bool codegen(jitdata *jd); #if defined(ENABLE_INTRP) bool intrp_codegen(jitdata *jd); #endif #endif /* _CODEGEN_COMMON_H */ /* * 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 * Emacs will automagically detect them. * --------------------------------------------------------------------- * Local variables: * mode: c * indent-tabs-mode: t * c-basic-offset: 4 * tab-width: 4 * End: * vim:noexpandtab:sw=4:ts=4: */