From 2f933e86b41b1112e6697f95cba7f541f029af8b Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Sun, 13 Jan 2013 17:32:23 +1000 Subject: Remove unused LuaJIT 1.1.7, since the 2.0 version works fine. --- libraries/LuaJIT-1.1.7/src/ljitlib.c | 637 ----------------------------------- 1 file changed, 637 deletions(-) delete mode 100644 libraries/LuaJIT-1.1.7/src/ljitlib.c (limited to 'libraries/LuaJIT-1.1.7/src/ljitlib.c') diff --git a/libraries/LuaJIT-1.1.7/src/ljitlib.c b/libraries/LuaJIT-1.1.7/src/ljitlib.c deleted file mode 100644 index 4efc04d..0000000 --- a/libraries/LuaJIT-1.1.7/src/ljitlib.c +++ /dev/null @@ -1,637 +0,0 @@ -/* -** Lua library for the JIT engine. -** Copyright (C) 2005-2011 Mike Pall. See Copyright Notice in luajit.h -*/ - -#include -#include - -#define ljitlib_c -#define LUA_LIB - -#include "lua.h" -#include "lauxlib.h" -#include "luajit.h" -#include "lualib.h" - -/* This file is not a pure C API user. Some internals are required. */ -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "lfunc.h" -#include "lgc.h" -#include "lopcodes.h" - -#include "ljit.h" -#include "ljit_hints.h" - -#define STRING_HINTS -#include "ljit_hints.h" - -/* ------------------------------------------------------------------------ */ - -/* Static pointer addresses used as registry keys. */ -/* The values do not matter, but must be different to prevent joining. */ -static const int regkey_frontend = 0x6c6a6c01; -static const int regkey_comthread = 0x6c6a6c02; - -/* Check that the first argument is a Lua function and return its closure. */ -static Closure *check_LCL(lua_State *L) -{ - StkId o = L->base; - switch (lua_type(L, 1)) { - case LUA_TBOOLEAN: - o = (L->ci-1)->func; - case LUA_TFUNCTION: - if (isLfunction(o)) - return clvalue(o); - break; - } - luaL_argerror(L, 1, "Lua function expected"); - return NULL; -} - -/* Create a new closure from a prototype. */ -/* Note: upvalues are assumed to be after first two slots. */ -static void push_LCL(lua_State *L, Proto *pt, Table *env) -{ - Closure *cl; - int i, nup = pt->nups; - /* Adjust the number of stack slots to the number of upvalues. */ - luaL_checkstack(L, nup, "too many upvalues"); - lua_settop(L, 2+nup); - /* Create a closure from the subroutine prototype. */ - cl = luaF_newLclosure(L, nup, env); - cl->l.p = pt; - /* Allocate new upvalues and close them. */ - for (i = 0; i < nup; i++) - cl->l.upvals[i] = luaF_findupval(L, L->base + (2+i)); - luaF_close(L, L->base + 2); - lua_settop(L, 2); /* Remove upvalues. */ - setclvalue(L, L->top++, cl); /* Return closure on top of stack. */ - luaC_checkGC(L); -} - -/* ------------------------------------------------------------------------ */ - -/* Set JIT mode for the engine or a closure and/or its subroutines. */ -static int setmode(lua_State *L, int mode) -{ - int idx = 0; - switch (lua_type(L, 1)) { - case LUA_TNONE: /* jit.on/off() */ - case LUA_TNIL: /* jit.on/off(nil) */ - luaJIT_setmode(L, 0, mode | LUAJIT_MODE_ENGINE); - break; - case LUA_TFUNCTION: /* jit.on/off(func, nil|true|false) */ - idx = 1; - case LUA_TBOOLEAN: /* jit.on/off(true, nil|true|false) (parent frame) */ - if (lua_isboolean(L, 2)) - mode |= lua_toboolean(L, 2)?LUAJIT_MODE_ALLFUNC:LUAJIT_MODE_ALLSUBFUNC; - else - mode |= LUAJIT_MODE_FUNC; - if (luaJIT_setmode(L, idx, mode) == 1) /* Ok? */ - break; - default: - luaL_argerror(L, 1, "Lua function expected"); - break; - } - return 0; -} - -/* Set JIT mode to on: (re-)enable compilation. */ -static int j_on(lua_State *L) -{ - return setmode(L, LUAJIT_MODE_ON); -} - -/* Set JIT mode to off: disable compilation. */ -static int j_off(lua_State *L) -{ - return setmode(L, LUAJIT_MODE_OFF); -} - -/* Set JIT debug level. Defaults to maximum level for use with -j. */ -static int j_debug(lua_State *L) -{ - luaJIT_setmode(L, luaL_optinteger(L, 1, 100), LUAJIT_MODE_DEBUG); - return 0; -} - -/* ------------------------------------------------------------------------ */ - -/* Report the compilation status. */ -static int compstatus(lua_State *L, int status) -{ - if (status == -1) - return luaL_argerror(L, 1, "Lua function expected"); - else if (status == JIT_S_OK) - return 0; - else { - lua_pushinteger(L, status); - return 1; - } -} - -/* Compile a function. Pass typical args to help the optimizer. */ -static int j_compile(lua_State *L) -{ - int nargs = lua_gettop(L) - 1; - return compstatus(L, nargs >= 0 ? luaJIT_compile(L, nargs) : -1); -} - -/* Recursively compile all subroutine prototypes. */ -static int rec_compile(lua_State *L, Proto *pt, Table *env, int stoponerror) -{ - int rstatus = JIT_S_OK; - int i; - for (i = 0; i < pt->sizep; i++) { - Proto *pti = pt->p[i]; - int status; - push_LCL(L, pti, env); /* Assumes stack is at 2 (no upvalues). */ - status = luaJIT_compile(L, 0); - lua_settop(L, 2); /* Clear stack */ - if (status != JIT_S_OK) { - rstatus = status; - if (stoponerror) break; - } - status = rec_compile(L, pti, env, stoponerror); - if (status != JIT_S_OK) { - rstatus = status; - if (stoponerror) break; - } - } - return rstatus; -} - -/* Compile all subroutines of a function. */ -/* Note: the function itself is _not_ compiled (use jit.compile()). */ -static int j_compilesub(lua_State *L) -{ - Closure *cl = check_LCL(L); - int stoponerror = lua_toboolean(L, 2); /* Stop on first error? */ - lua_settop(L, 2); - return compstatus(L, rec_compile(L, cl->l.p, cl->l.env, stoponerror)); -} - -/* jit.* functions. */ -static const luaL_Reg jitlib[] = { - { "on", j_on }, - { "off", j_off }, - { "debug", j_debug }, - { "compile", j_compile }, - { "compilesub", j_compilesub }, - /* j_attach is added below. */ - { NULL, NULL } -}; - -/* ------------------------------------------------------------------------ */ - -/* Get the compiler pipeline table from an upvalue (j_attach, j_frontend). */ -#define COMPIPE lua_upvalueindex(1) - -/* Attach/detach handler to/from compiler pipeline. */ -static int j_attach(lua_State *L) -{ - int pipesz; - luaL_checktype(L, 1, LUA_TFUNCTION); - pipesz = lua_objlen(L, COMPIPE); - if (lua_isnoneornil(L, 2)) { /* Detach if no priority given. */ - int i; - for (i = 1; i <= pipesz; i += 2) { - lua_rawgeti(L, COMPIPE, i); - if (lua_rawequal(L, 1, -1)) { /* Found: delete from pipeline. */ - for (; i+2 <= pipesz; i++) { /* Shift down. */ - lua_rawgeti(L, COMPIPE, i+2); - lua_rawseti(L, COMPIPE, i); - } - /* Clear last two elements. */ - lua_pushnil(L); lua_rawseti(L, COMPIPE, i); - lua_pushnil(L); lua_rawseti(L, COMPIPE, i+1); - return 0; - } - lua_pop(L, 1); - } - return 0; /* Not found: ignore detach request. */ - } else { /* Attach if priority given. */ - int prio = luaL_checkint(L, 2); - int pos, i; - for (pos = 2; pos <= pipesz; pos += 2) { - lua_rawgeti(L, COMPIPE, pos); - if (prio > (int)lua_tointeger(L, -1)) break; /* Insertion point found. */ - lua_pop(L, 1); - } - for (i = pipesz+2; i > pos; i--) { /* Shift up. */ - lua_rawgeti(L, COMPIPE, i-2); - lua_rawseti(L, COMPIPE, i); - } - /* Set handler and priority. */ - lua_pushvalue(L, 1); lua_rawseti(L, COMPIPE, i-1); - lua_pushvalue(L, 2); lua_rawseti(L, COMPIPE, i); - return 0; - } -} - -/* Compiler frontend. Runs in the compiler thread. */ -/* First and only arg is the compiler state table. */ -static int j_frontend(lua_State *L) -{ - int status = JIT_S_OK; - int pos; - /* Loop through all handlers in the compiler pipeline. */ - for (pos = 1; ; pos += 2) { - if (status != JIT_S_OK) { /* Pending failure? */ - int prio; - lua_rawgeti(L, COMPIPE, pos+1); /* Must check for odd/even priority. */ - if (lua_isnil(L, -1)) break; /* End of pipeline. */ - prio = (int)lua_tointeger(L, -1); - lua_pop(L, 1); - if ((prio & 1) == 0) continue; /* Skip handlers with even priority. */ - } - /* Call handler with compiler state table and optional failure status. */ - lua_rawgeti(L, COMPIPE, pos); - if (lua_isnil(L, -1)) break; /* End of pipeline. */ - lua_pushvalue(L, 1); - if (status != JIT_S_OK) - lua_pushinteger(L, status); - lua_call(L, status ? 2 : 1, 1); - if (!lua_isnil(L, -1)) /* Remember failure status. */ - status = (int)lua_tointeger(L, -1); - lua_pop(L, 1); - } - lua_pushinteger(L, status); - return 1; -} - -/* Compiler frontend wrapper. */ -static int frontwrap(lua_State *L, Table *st) -{ - jit_State *J = G(L)->jit_state; - lua_State *JL; - int status; - - /* Allocate compiler thread on demand. */ - if (J->L == NULL) { - if (!lua_checkstack(L, 3)) return JIT_S_COMPILER_ERROR; - sethvalue(L, L->top++, st); /* Prevent GC of state table. */ - lua_pushlightuserdata(L, (void *)®key_comthread); - /* Cannot use C stack, since it's deallocated early in Coco. */ - /* But we don't need one -- the compiler thread never yields, anyway. */ - J->L = lua_newthread(L); - lua_rawset(L, LUA_REGISTRYINDEX); - L->top--; /* Remove state table from this stack. */ - } - JL = J->L; - - /* Initialize compiler thread stack with frontend and state table. */ - lua_settop(JL, 0); - lua_pushlightuserdata(JL, (void *)®key_frontend); - lua_rawget(JL, LUA_REGISTRYINDEX); - sethvalue(JL, JL->top, st); - JL->top++; - - /* Start the frontend by resuming the compiler thread. */ - if (lua_resume(JL, 1) != 0) { /* Failed? */ - /* Note: LUA_YIELD is treated like any other error. */ - J->L = NULL; /* Get a new thread next time. */ - fprintf(stderr, "[LuaJIT frontend failed: %s]\n", - lua_isstring(JL, -1) ? lua_tostring(JL, -1) : "(unknown error)"); - return JIT_S_COMPILER_ERROR; - } - - /* Get status from terminated thread. */ - status = (int)lua_tointeger(JL, -1); - lua_settop(JL, 0); /* Help the GC. */ - return status; -} - -/* Create the compiler pipeline and register it. */ -static void makepipeline(lua_State *L) -{ - lua_createtable(L, 20, 0); /* 10 handlers+priorities should be enough. */ - lua_pushcfunction(L, luaJIT_backend); - lua_rawseti(L, -2, 1); - lua_pushinteger(L, 0); /* Fill in the backend at prio 0. */ - lua_rawseti(L, -2, 2); - - /* Store the compiler frontend in the registry. */ - lua_pushlightuserdata(L, (void *)®key_frontend); - lua_pushvalue(L, -2); /* Pipeline table as upvalue. */ - lua_pushcclosure(L, j_frontend, 1); - lua_rawset(L, LUA_REGISTRYINDEX); - - /* Register the frontend wrapper. */ - G(L)->jit_state->frontwrap = frontwrap; - - /* Add jit.attach with the pipeline table as upvalue. */ - lua_pushcclosure(L, j_attach, 1); - lua_setfield(L, -2, "attach"); /* "jit" table must be below. */ -} - -/* ------------------------------------------------------------------------ */ - -/* Calculate total mcode size without mfm and only for active mcode blocks. */ -static size_t mcodesize(Proto *pt) -{ - jit_MCTrailer tr; - size_t sz = 0; - tr.mcode = (char *)pt->jit_mcode; - tr.sz = pt->jit_szmcode; - do { - jit_Mfm *mfm = JIT_MCMFM(tr.mcode, tr.sz); - if (sz != 0 && jit_mfm_ismain(mfm)) break; /* Stop at old main mfm. */ - while (*mfm != JIT_MFM_STOP) mfm--; /* Search for end of mcode. */ - sz += (char *)mfm-(char *)tr.mcode; /* Add size of mcode without mfm. */ - memcpy((void *)&tr, JIT_MCTRAILER(tr.mcode, tr.sz), sizeof(jit_MCTrailer)); - } while (tr.mcode != NULL); - return sz; -} - -#define setintfield(name, i) \ - do { lua_pushinteger(L, i); lua_setfield(L, -2, name); } while (0) - -/* local stats = jit.util.stats(func) */ -static int ju_stats(lua_State *L) -{ - if (!(L->top > L->base)) - luaL_argerror(L, 1, "Lua function expected"); - if (isLfunction(L->base)) { - Proto *pt = clvalue(L->base)->l.p; - lua_createtable(L, 0, 11); - setintfield("status", pt->jit_status); - setintfield("stackslots", pt->maxstacksize); - setintfield("params", pt->numparams); - setintfield("bytecodes", pt->sizecode); - setintfield("consts", pt->sizek); - setintfield("upvalues", pt->nups); - setintfield("subs", pt->sizep); - lua_pushboolean(L, pt->is_vararg); - lua_setfield(L, -2, "isvararg"); - lua_getfenv(L, 1); - lua_setfield(L, -2, "env"); - if (pt->jit_szmcode != 0) { - setintfield("mcodesize", (int)mcodesize(pt)); - lua_pushnumber(L, (lua_Number)(size_t)pt->jit_mcode); - lua_setfield(L, -2, "mcodeaddr"); - } - return 1; - } else { - return 0; /* Don't throw an error like the other util functions. */ - } -} - -/* local op, a, b, c, test = jit.util.bytecode(func, pc) */ -static int ju_bytecode(lua_State *L) -{ - Proto *pt = check_LCL(L)->l.p; - int pc = luaL_checkint(L, 2); - if (pc >= 1 && pc <= pt->sizecode) { - Instruction ins = pt->code[pc-1]; - OpCode op = GET_OPCODE(ins); - if (pc > 1 && (((int)OP_SETLIST) << POS_OP) == - (pt->code[pc-2] & (MASK1(SIZE_OP,POS_OP) | MASK1(SIZE_C,POS_C)))) { - lua_pushstring(L, luaP_opnames[OP_SETLIST]); - lua_pushnumber(L, (lua_Number)ins); /* Fake extended op. */ - return 1; - } - if (op >= NUM_OPCODES) return 0; /* Just in case. */ - lua_pushstring(L, luaP_opnames[op]); - lua_pushinteger(L, GETARG_A(ins)); - switch (getOpMode(op)) { - case iABC: { - int b = GETARG_B(ins), c = GETARG_C(ins); - switch (getBMode(op)) { - case OpArgN: lua_pushnil(L); break; - case OpArgK: if (ISK(b)) b = -1-INDEXK(b); - case OpArgR: case OpArgU: lua_pushinteger(L, b); break; - } - switch (getCMode(op)) { - case OpArgN: lua_pushnil(L); break; - case OpArgK: if (ISK(c)) c = -1-INDEXK(c); - case OpArgR: case OpArgU: lua_pushinteger(L, c); break; - } - lua_pushboolean(L, testTMode(op)); - return 5; - } - case iABx: { - int bx = GETARG_Bx(ins); - lua_pushinteger(L, getBMode(op) == OpArgK ? -1-bx : bx); - return 3; - } - case iAsBx: - lua_pushinteger(L, GETARG_sBx(ins)); - return 3; - } - } - return 0; -} - -/* local const, ok = jit.util.const(func, idx) */ -static int ju_const(lua_State *L) -{ - Proto *pt = check_LCL(L)->l.p; - int idx = luaL_checkint(L, 2); - if (idx < 0) idx = -idx; /* Handle both positive and negative indices. */ - if (idx >= 1 && idx <= pt->sizek) { - setobj2s(L, L->top-1, &pt->k[idx-1]); - lua_pushboolean(L, 1); - return 2; - } - lua_pushnil(L); - lua_pushboolean(L, 0); - return 2; -} - -/* local upvalue, ok = jit.util.upvalue(func, idx) */ -static int ju_upvalue(lua_State *L) -{ - Closure *cl = check_LCL(L); - Proto *pt = cl->l.p; - int idx = luaL_checkint(L, 2); - if (idx >= 0 && idx < pt->nups) { - setobj2s(L, L->top-1, cl->l.upvals[idx]->v); - lua_pushboolean(L, 1); - return 2; - } - lua_pushnil(L); - lua_pushboolean(L, 0); - return 2; -} - -/* local nup = jit.util.closurenup(func, idx) */ -static int ju_closurenup(lua_State *L) -{ - Closure *cl = check_LCL(L); - Proto *pt = cl->l.p; - int idx = luaL_checkint(L, 2); - if (idx >= 0 && idx < pt->sizep) { - lua_pushinteger(L, pt->p[idx]->nups); - return 1; - } - return 0; -} - -/* for tag, mark in mfmiter do ... end. */ -static int ju_mfmiter(lua_State *L) -{ - jit_Mfm *mfm = (jit_Mfm *)lua_touserdata(L, lua_upvalueindex(1)); - int m = *mfm--; - switch (m) { - case JIT_MFM_STOP: return 0; - case JIT_MFM_COMBINE: lua_pushliteral(L, "COMBINE"); lua_pushnil(L); break; - case JIT_MFM_DEAD: lua_pushliteral(L, "DEAD"); lua_pushnil(L); break; - default: - lua_pushinteger(L, m & JIT_MFM_MASK); - lua_pushboolean(L, m & JIT_MFM_MARK); - break; - } - lua_pushlightuserdata(L, (void *)mfm); - lua_replace(L, lua_upvalueindex(1)); - return 2; -} - -/* local addr, mcode, mfmiter = jit.util.mcode(func, block) */ -static int ju_mcode(lua_State *L) -{ - Proto *pt = check_LCL(L)->l.p; - if (pt->jit_szmcode == 0) { /* Not compiled (yet): return nil, status. */ - lua_pushnil(L); - lua_pushinteger(L, pt->jit_status); - return 2; - } else { - jit_Mfm *mfm; - jit_MCTrailer tr; - int block = luaL_checkint(L, 2); - tr.mcode = (char *)pt->jit_mcode; - tr.sz = pt->jit_szmcode; - while (--block > 0) { - void *trp = JIT_MCTRAILER(tr.mcode, tr.sz); - memcpy((void *)&tr, trp, sizeof(jit_MCTrailer)); - if (tr.sz == 0) return 0; - } - mfm = JIT_MCMFM(tr.mcode, tr.sz); - while (*mfm != JIT_MFM_STOP) mfm--; /* Search for end of mcode. */ - lua_pushnumber(L, (lua_Number)(size_t)tr.mcode); - lua_pushlstring(L, (const char *)tr.mcode, (char *)mfm-(char *)tr.mcode); - lua_pushlightuserdata(L, (void *)JIT_MCMFM(tr.mcode, tr.sz)); - lua_pushvalue(L, 1); /* Must hold onto function to avoid GC. */ - lua_pushcclosure(L, ju_mfmiter, 2); - return 3; - } -} - -/* local addr [, mcode] = jit.util.jsubmcode([idx]) */ -static int ju_jsubmcode(lua_State *L) -{ - jit_State *J = G(L)->jit_state; - if (lua_isnoneornil(L, 1)) { - lua_pushnumber(L, (lua_Number)(size_t)J->jsubmcode); - lua_pushlstring(L, (const char *)J->jsubmcode, J->szjsubmcode); - return 2; - } else { - int idx = luaL_checkint(L, 1); - if (idx >= 0 && idx < J->numjsub) { - lua_pushnumber(L, (lua_Number)(size_t)J->jsub[idx]); - return 1; - } - return 0; - } -} - -/* FOR INTERNAL DEBUGGING USE ONLY: local addr = jit.util.stackptr() */ -static int ju_stackptr(lua_State *L) -{ - jit_State *J = G(L)->jit_state; - size_t addr = cast(size_t (*)(void), J->jsub[0])(); /* JSUB_STACKPTR == 0! */ - lua_pushnumber(L, (lua_Number)addr); - return 1; -} - -/* jit.util.* functions. */ -static const luaL_Reg jitutillib[] = { - {"stats", ju_stats }, - {"bytecode", ju_bytecode }, - {"const", ju_const }, - {"upvalue", ju_upvalue }, - {"closurenup", ju_closurenup }, - {"mcode", ju_mcode }, - {"jsubmcode", ju_jsubmcode }, - {"stackptr", ju_stackptr }, - { NULL, NULL } -}; - -/* Make hint name to hint number map. */ -static void makehints(lua_State *L, const char *const *t, int tmax, - const char *name) -{ - int i; - lua_createtable(L, 0, tmax); - for (i = 1; i < tmax; i++) { - lua_pushinteger(L, JIT_H2NUM(i)); - lua_setfield(L, -2, t[i-1]); - } - lua_setfield(L, -2, name); -} - -/* CHECK: must match with ljit.h (grep "ORDER JIT_S"). */ -static const char *const status_list[] = { - "OK", - "NONE", - "OFF", - "ENGINE_OFF", - "DELAYED", - "TOOLARGE", - "COMPILER_ERROR", - "DASM_ERROR" -}; - -/* Make bidirectional status name to status number map. */ -static void makestatus(lua_State *L, const char *name) -{ - int i; - lua_createtable(L, JIT_S_MAX-1, JIT_S_MAX+1); /* Codes are not 1-based. */ - for (i = 0; i < JIT_S_MAX; i++) { - lua_pushstring(L, status_list[i]); - lua_pushinteger(L, i); - lua_pushvalue(L, -2); - lua_rawseti(L, -4, i); - lua_rawset(L, -3); - } - lua_setfield(L, -2, name); -} - -/* ------------------------------------------------------------------------ */ - -/* -** Open JIT library -*/ -LUALIB_API int luaopen_jit(lua_State *L) -{ - /* Add the core JIT library. */ - luaL_register(L, LUA_JITLIBNAME, jitlib); - lua_pushliteral(L, LUAJIT_VERSION); - lua_setfield(L, -2, "version"); - setintfield("version_num", LUAJIT_VERSION_NUM); - lua_pushstring(L, luaJIT_arch); - lua_setfield(L, -2, "arch"); - makepipeline(L); - - /* Add the utility JIT library. */ - luaL_register(L, LUA_JITLIBNAME ".util", jitutillib); - makestatus(L, "status"); - makehints(L, hints_H, JIT_H_MAX, "hints"); - makehints(L, hints_FH, JIT_FH_MAX, "fhints"); - lua_pop(L, 1); - - /* Everything ok, so turn the JIT engine on. Vroooom! */ - if (luaJIT_setmode(L, 0, LUAJIT_MODE_ENGINE|LUAJIT_MODE_ON) <= 0) { - /* Ouch. Someone screwed up DynASM or the JSUBs. Probably me. */ - /* But if you get 999999999, look at jit_consistency_check(). */ - return luaL_error(L, "JIT engine init failed (%d)", - G(L)->jit_state->dasmstatus); - } - - return 1; -} - -- cgit v1.1