diff options
Diffstat (limited to '3rdparty/lua/src/host/genminilua.lua')
| -rw-r--r-- | 3rdparty/lua/src/host/genminilua.lua | 855 |
1 files changed, 427 insertions, 428 deletions
diff --git a/3rdparty/lua/src/host/genminilua.lua b/3rdparty/lua/src/host/genminilua.lua index ebb52d0..e666f08 100644 --- a/3rdparty/lua/src/host/genminilua.lua +++ b/3rdparty/lua/src/host/genminilua.lua @@ -1,428 +1,427 @@ -----------------------------------------------------------------------------
--- Lua script to generate a customized, minified version of Lua.
--- The resulting 'minilua' is used for the build process of LuaJIT.
-----------------------------------------------------------------------------
--- Copyright (C) 2005-2015 Mike Pall. All rights reserved.
--- Released under the MIT license. See Copyright Notice in luajit.h
-----------------------------------------------------------------------------
-
-local sub, match, gsub = string.sub, string.match, string.gsub
-
-local LUA_VERSION = "5.1.5"
-local LUA_SOURCE
-
-local function usage()
- io.stderr:write("Usage: ", arg and arg[0] or "genminilua",
- " lua-", LUA_VERSION, "-source-dir\n")
- os.exit(1)
-end
-
-local function find_sources()
- LUA_SOURCE = arg and arg[1]
- if not LUA_SOURCE then usage() end
- if sub(LUA_SOURCE, -1) ~= "/" then LUA_SOURCE = LUA_SOURCE.."/" end
- local fp = io.open(LUA_SOURCE .. "lua.h")
- if not fp then
- LUA_SOURCE = LUA_SOURCE.."src/"
- fp = io.open(LUA_SOURCE .. "lua.h")
- if not fp then usage() end
- end
- local all = fp:read("*a")
- fp:close()
- if not match(all, 'LUA_RELEASE%s*"Lua '..LUA_VERSION..'"') then
- io.stderr:write("Error: version mismatch\n")
- usage()
- end
-end
-
-local LUA_FILES = {
-"lmem.c", "lobject.c", "ltm.c", "lfunc.c", "ldo.c", "lstring.c", "ltable.c",
-"lgc.c", "lstate.c", "ldebug.c", "lzio.c", "lopcodes.c",
-"llex.c", "lcode.c", "lparser.c", "lvm.c", "lapi.c", "lauxlib.c",
-"lbaselib.c", "ltablib.c", "liolib.c", "loslib.c", "lstrlib.c", "linit.c",
-}
-
-local REMOVE_LIB = {}
-gsub([[
-collectgarbage dofile gcinfo getfenv getmetatable load print rawequal rawset
-select tostring xpcall
-foreach foreachi getn maxn setn
-popen tmpfile seek setvbuf __tostring
-clock date difftime execute getenv rename setlocale time tmpname
-dump gfind len reverse
-LUA_LOADLIBNAME LUA_MATHLIBNAME LUA_DBLIBNAME
-]], "%S+", function(name)
- REMOVE_LIB[name] = true
-end)
-
-local REMOVE_EXTINC = { ["<assert.h>"] = true, ["<locale.h>"] = true, }
-
-local CUSTOM_MAIN = [[
-typedef unsigned int UB;
-static UB barg(lua_State *L,int idx){
-union{lua_Number n;U64 b;}bn;
-bn.n=lua_tonumber(L,idx)+6755399441055744.0;
-if (bn.n==0.0&&!lua_isnumber(L,idx))luaL_typerror(L,idx,"number");
-return(UB)bn.b;
-}
-#define BRET(b) lua_pushnumber(L,(lua_Number)(int)(b));return 1;
-static int tobit(lua_State *L){
-BRET(barg(L,1))}
-static int bnot(lua_State *L){
-BRET(~barg(L,1))}
-static int band(lua_State *L){
-int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b&=barg(L,i);BRET(b)}
-static int bor(lua_State *L){
-int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b|=barg(L,i);BRET(b)}
-static int bxor(lua_State *L){
-int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b^=barg(L,i);BRET(b)}
-static int lshift(lua_State *L){
-UB b=barg(L,1),n=barg(L,2)&31;BRET(b<<n)}
-static int rshift(lua_State *L){
-UB b=barg(L,1),n=barg(L,2)&31;BRET(b>>n)}
-static int arshift(lua_State *L){
-UB b=barg(L,1),n=barg(L,2)&31;BRET((int)b>>n)}
-static int rol(lua_State *L){
-UB b=barg(L,1),n=barg(L,2)&31;BRET((b<<n)|(b>>(32-n)))}
-static int ror(lua_State *L){
-UB b=barg(L,1),n=barg(L,2)&31;BRET((b>>n)|(b<<(32-n)))}
-static int bswap(lua_State *L){
-UB b=barg(L,1);b=(b>>24)|((b>>8)&0xff00)|((b&0xff00)<<8)|(b<<24);BRET(b)}
-static int tohex(lua_State *L){
-UB b=barg(L,1);
-int n=lua_isnone(L,2)?8:(int)barg(L,2);
-const char *hexdigits="0123456789abcdef";
-char buf[8];
-int i;
-if(n<0){n=-n;hexdigits="0123456789ABCDEF";}
-if(n>8)n=8;
-for(i=(int)n;--i>=0;){buf[i]=hexdigits[b&15];b>>=4;}
-lua_pushlstring(L,buf,(size_t)n);
-return 1;
-}
-static const struct luaL_Reg bitlib[] = {
-{"tobit",tobit},
-{"bnot",bnot},
-{"band",band},
-{"bor",bor},
-{"bxor",bxor},
-{"lshift",lshift},
-{"rshift",rshift},
-{"arshift",arshift},
-{"rol",rol},
-{"ror",ror},
-{"bswap",bswap},
-{"tohex",tohex},
-{NULL,NULL}
-};
-int main(int argc, char **argv){
- lua_State *L = luaL_newstate();
- int i;
- luaL_openlibs(L);
- luaL_register(L, "bit", bitlib);
- if (argc < 2) return sizeof(void *);
- lua_createtable(L, 0, 1);
- lua_pushstring(L, argv[1]);
- lua_rawseti(L, -2, 0);
- lua_setglobal(L, "arg");
- if (luaL_loadfile(L, argv[1]))
- goto err;
- for (i = 2; i < argc; i++)
- lua_pushstring(L, argv[i]);
- if (lua_pcall(L, argc - 2, 0, 0)) {
- err:
- fprintf(stderr, "Error: %s\n", lua_tostring(L, -1));
- return 1;
- }
- lua_close(L);
- return 0;
-}
-]]
-
-local function read_sources()
- local t = {}
- for i, name in ipairs(LUA_FILES) do
- local fp = assert(io.open(LUA_SOURCE..name, "r"))
- t[i] = fp:read("*a")
- assert(fp:close())
- end
- t[#t+1] = CUSTOM_MAIN
- return table.concat(t)
-end
-
-local includes = {}
-
-local function merge_includes(src)
- return gsub(src, '#include%s*"([^"]*)"%s*\n', function(name)
- if includes[name] then return "" end
- includes[name] = true
- local fp = assert(io.open(LUA_SOURCE..name, "r"))
- local src = fp:read("*a")
- assert(fp:close())
- src = gsub(src, "#ifndef%s+%w+_h\n#define%s+%w+_h\n", "")
- src = gsub(src, "#endif%s*$", "")
- return merge_includes(src)
- end)
-end
-
-local function get_license(src)
- return match(src, "/%*+\n%* Copyright %(.-%*/\n")
-end
-
-local function fold_lines(src)
- return gsub(src, "\\\n", " ")
-end
-
-local strings = {}
-
-local function save_str(str)
- local n = #strings+1
- strings[n] = str
- return "\1"..n.."\2"
-end
-
-local function save_strings(src)
- src = gsub(src, '"[^"\n]*"', save_str)
- return gsub(src, "'[^'\n]*'", save_str)
-end
-
-local function restore_strings(src)
- return gsub(src, "\1(%d+)\2", function(numstr)
- return strings[tonumber(numstr)]
- end)
-end
-
-local function def_istrue(def)
- return def == "INT_MAX > 2147483640L" or
- def == "LUAI_BITSINT >= 32" or
- def == "SIZE_Bx < LUAI_BITSINT-1" or
- def == "cast" or
- def == "defined(LUA_CORE)" or
- def == "MINSTRTABSIZE" or
- def == "LUA_MINBUFFER" or
- def == "HARDSTACKTESTS" or
- def == "UNUSED"
-end
-
-local head, defs = {[[
-#ifdef _MSC_VER
-typedef unsigned __int64 U64;
-#else
-typedef unsigned long long U64;
-#endif
-int _CRT_glob = 0;
-]]}, {}
-
-local function preprocess(src)
- local t = { match(src, "^(.-)#") }
- local lvl, on, oldon = 0, true, {}
- for pp, def, txt in string.gmatch(src, "#(%w+) *([^\n]*)\n([^#]*)") do
- if pp == "if" or pp == "ifdef" or pp == "ifndef" then
- lvl = lvl + 1
- oldon[lvl] = on
- on = def_istrue(def)
- elseif pp == "else" then
- if oldon[lvl] then
- if on == false then on = true else on = false end
- end
- elseif pp == "elif" then
- if oldon[lvl] then
- on = def_istrue(def)
- end
- elseif pp == "endif" then
- on = oldon[lvl]
- lvl = lvl - 1
- elseif on then
- if pp == "include" then
- if not head[def] and not REMOVE_EXTINC[def] then
- head[def] = true
- head[#head+1] = "#include "..def.."\n"
- end
- elseif pp == "define" then
- local k, sp, v = match(def, "([%w_]+)(%s*)(.*)")
- if k and not (sp == "" and sub(v, 1, 1) == "(") then
- defs[k] = gsub(v, "%a[%w_]*", function(tok)
- return defs[tok] or tok
- end)
- else
- t[#t+1] = "#define "..def.."\n"
- end
- elseif pp ~= "undef" then
- error("unexpected directive: "..pp.." "..def)
- end
- end
- if on then t[#t+1] = txt end
- end
- return gsub(table.concat(t), "%a[%w_]*", function(tok)
- return defs[tok] or tok
- end)
-end
-
-local function merge_header(src, license)
- local hdr = string.format([[
-/* This is a heavily customized and minimized copy of Lua %s. */
-/* It's only used to build LuaJIT. It does NOT have all standard functions! */
-]], LUA_VERSION)
- return hdr..license..table.concat(head)..src
-end
-
-local function strip_unused1(src)
- return gsub(src, '( {"?([%w_]+)"?,%s+%a[%w_]*},\n)', function(line, func)
- return REMOVE_LIB[func] and "" or line
- end)
-end
-
-local function strip_unused2(src)
- return gsub(src, "Symbolic Execution.-}=", "")
-end
-
-local function strip_unused3(src)
- src = gsub(src, "extern", "static")
- src = gsub(src, "\nstatic([^\n]-)%(([^)]*)%)%(", "\nstatic%1 %2(")
- src = gsub(src, "#define lua_assert[^\n]*\n", "")
- src = gsub(src, "lua_assert%b();?", "")
- src = gsub(src, "default:\n}", "default:;\n}")
- src = gsub(src, "lua_lock%b();", "")
- src = gsub(src, "lua_unlock%b();", "")
- src = gsub(src, "luai_threadyield%b();", "")
- src = gsub(src, "luai_userstateopen%b();", "{}")
- src = gsub(src, "luai_userstate%w+%b();", "")
- src = gsub(src, "%(%(c==.*luaY_parser%)", "luaY_parser")
- src = gsub(src, "trydecpoint%(ls,seminfo%)",
- "luaX_lexerror(ls,\"malformed number\",TK_NUMBER)")
- src = gsub(src, "int c=luaZ_lookahead%b();", "")
- src = gsub(src, "luaL_register%(L,[^,]*,co_funcs%);\nreturn 2;",
- "return 1;")
- src = gsub(src, "getfuncname%b():", "NULL:")
- src = gsub(src, "getobjname%b():", "NULL:")
- src = gsub(src, "if%([^\n]*hookmask[^\n]*%)\n[^\n]*\n", "")
- src = gsub(src, "if%([^\n]*hookmask[^\n]*%)%b{}\n", "")
- src = gsub(src, "if%([^\n]*hookmask[^\n]*&&\n[^\n]*%b{}\n", "")
- src = gsub(src, "(twoto%b()%()", "%1(size_t)")
- src = gsub(src, "i<sizenode", "i<(int)sizenode")
- return gsub(src, "\n\n+", "\n")
-end
-
-local function strip_comments(src)
- return gsub(src, "/%*.-%*/", " ")
-end
-
-local function strip_whitespace(src)
- src = gsub(src, "^%s+", "")
- src = gsub(src, "%s*\n%s*", "\n")
- src = gsub(src, "[ \t]+", " ")
- src = gsub(src, "(%W) ", "%1")
- return gsub(src, " (%W)", "%1")
-end
-
-local function rename_tokens1(src)
- src = gsub(src, "getline", "getline_")
- src = gsub(src, "struct ([%w_]+)", "ZX%1")
- return gsub(src, "union ([%w_]+)", "ZY%1")
-end
-
-local function rename_tokens2(src)
- src = gsub(src, "ZX([%w_]+)", "struct %1")
- return gsub(src, "ZY([%w_]+)", "union %1")
-end
-
-local function func_gather(src)
- local nodes, list = {}, {}
- local pos, len = 1, #src
- while pos < len do
- local d, w = match(src, "^(#define ([%w_]+)[^\n]*\n)", pos)
- if d then
- local n = #list+1
- list[n] = d
- nodes[w] = n
- else
- local s
- d, w, s = match(src, "^(([%w_]+)[^\n]*([{;])\n)", pos)
- if not d then
- d, w, s = match(src, "^(([%w_]+)[^(]*%b()([{;])\n)", pos)
- if not d then d = match(src, "^[^\n]*\n", pos) end
- end
- if s == "{" then
- d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3)
- if sub(d, -2) == "{\n" then
- d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3)
- end
- end
- local k, v = nil, d
- if w == "typedef" then
- if match(d, "^typedef enum") then
- head[#head+1] = d
- else
- k = match(d, "([%w_]+);\n$")
- if not k then k = match(d, "^.-%(.-([%w_]+)%)%(") end
- end
- elseif w == "enum" then
- head[#head+1] = v
- elseif w ~= nil then
- k = match(d, "^[^\n]-([%w_]+)[(%[=]")
- if k then
- if w ~= "static" and k ~= "main" then v = "static "..d end
- else
- k = w
- end
- end
- if w and k then
- local o = nodes[k]
- if o then nodes["*"..k] = o end
- local n = #list+1
- list[n] = v
- nodes[k] = n
- end
- end
- pos = pos + #d
- end
- return nodes, list
-end
-
-local function func_visit(nodes, list, used, n)
- local i = nodes[n]
- for m in string.gmatch(list[i], "[%w_]+") do
- if nodes[m] then
- local j = used[m]
- if not j then
- used[m] = i
- func_visit(nodes, list, used, m)
- elseif i < j then
- used[m] = i
- end
- end
- end
-end
-
-local function func_collect(src)
- local nodes, list = func_gather(src)
- local used = {}
- func_visit(nodes, list, used, "main")
- for n,i in pairs(nodes) do
- local j = used[n]
- if j and j < i then used["*"..n] = j end
- end
- for n,i in pairs(nodes) do
- if not used[n] then list[i] = "" end
- end
- return table.concat(list)
-end
-
-find_sources()
-local src = read_sources()
-src = merge_includes(src)
-local license = get_license(src)
-src = fold_lines(src)
-src = strip_unused1(src)
-src = save_strings(src)
-src = strip_unused2(src)
-src = strip_comments(src)
-src = preprocess(src)
-src = strip_whitespace(src)
-src = strip_unused3(src)
-src = rename_tokens1(src)
-src = func_collect(src)
-src = rename_tokens2(src)
-src = restore_strings(src)
-src = merge_header(src, license)
-io.write(src)
+---------------------------------------------------------------------------- +-- Lua script to generate a customized, minified version of Lua. +-- The resulting 'minilua' is used for the build process of LuaJIT. +---------------------------------------------------------------------------- +-- Copyright (C) 2005-2013 Mike Pall. All rights reserved. +-- Released under the MIT license. See Copyright Notice in luajit.h +---------------------------------------------------------------------------- + +local sub, match, gsub = string.sub, string.match, string.gsub + +local LUA_VERSION = "5.1.5" +local LUA_SOURCE + +local function usage() + io.stderr:write("Usage: ", arg and arg[0] or "genminilua", + " lua-", LUA_VERSION, "-source-dir\n") + os.exit(1) +end + +local function find_sources() + LUA_SOURCE = arg and arg[1] + if not LUA_SOURCE then usage() end + if sub(LUA_SOURCE, -1) ~= "/" then LUA_SOURCE = LUA_SOURCE.."/" end + local fp = io.open(LUA_SOURCE .. "lua.h") + if not fp then + LUA_SOURCE = LUA_SOURCE.."src/" + fp = io.open(LUA_SOURCE .. "lua.h") + if not fp then usage() end + end + local all = fp:read("*a") + fp:close() + if not match(all, 'LUA_RELEASE%s*"Lua '..LUA_VERSION..'"') then + io.stderr:write("Error: version mismatch\n") + usage() + end +end + +local LUA_FILES = { +"lmem.c", "lobject.c", "ltm.c", "lfunc.c", "ldo.c", "lstring.c", "ltable.c", +"lgc.c", "lstate.c", "ldebug.c", "lzio.c", "lopcodes.c", +"llex.c", "lcode.c", "lparser.c", "lvm.c", "lapi.c", "lauxlib.c", +"lbaselib.c", "ltablib.c", "liolib.c", "loslib.c", "lstrlib.c", "linit.c", +} + +local REMOVE_LIB = {} +gsub([[ +collectgarbage dofile gcinfo getfenv getmetatable load print rawequal rawset +select tostring xpcall +foreach foreachi getn maxn setn +popen tmpfile seek setvbuf __tostring +clock date difftime execute getenv rename setlocale time tmpname +dump gfind len reverse +LUA_LOADLIBNAME LUA_MATHLIBNAME LUA_DBLIBNAME +]], "%S+", function(name) + REMOVE_LIB[name] = true +end) + +local REMOVE_EXTINC = { ["<assert.h>"] = true, ["<locale.h>"] = true, } + +local CUSTOM_MAIN = [[ +typedef unsigned int UB; +static UB barg(lua_State *L,int idx){ +union{lua_Number n;U64 b;}bn; +bn.n=lua_tonumber(L,idx)+6755399441055744.0; +if (bn.n==0.0&&!lua_isnumber(L,idx))luaL_typerror(L,idx,"number"); +return(UB)bn.b; +} +#define BRET(b) lua_pushnumber(L,(lua_Number)(int)(b));return 1; +static int tobit(lua_State *L){ +BRET(barg(L,1))} +static int bnot(lua_State *L){ +BRET(~barg(L,1))} +static int band(lua_State *L){ +int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b&=barg(L,i);BRET(b)} +static int bor(lua_State *L){ +int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b|=barg(L,i);BRET(b)} +static int bxor(lua_State *L){ +int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b^=barg(L,i);BRET(b)} +static int lshift(lua_State *L){ +UB b=barg(L,1),n=barg(L,2)&31;BRET(b<<n)} +static int rshift(lua_State *L){ +UB b=barg(L,1),n=barg(L,2)&31;BRET(b>>n)} +static int arshift(lua_State *L){ +UB b=barg(L,1),n=barg(L,2)&31;BRET((int)b>>n)} +static int rol(lua_State *L){ +UB b=barg(L,1),n=barg(L,2)&31;BRET((b<<n)|(b>>(32-n)))} +static int ror(lua_State *L){ +UB b=barg(L,1),n=barg(L,2)&31;BRET((b>>n)|(b<<(32-n)))} +static int bswap(lua_State *L){ +UB b=barg(L,1);b=(b>>24)|((b>>8)&0xff00)|((b&0xff00)<<8)|(b<<24);BRET(b)} +static int tohex(lua_State *L){ +UB b=barg(L,1); +int n=lua_isnone(L,2)?8:(int)barg(L,2); +const char *hexdigits="0123456789abcdef"; +char buf[8]; +int i; +if(n<0){n=-n;hexdigits="0123456789ABCDEF";} +if(n>8)n=8; +for(i=(int)n;--i>=0;){buf[i]=hexdigits[b&15];b>>=4;} +lua_pushlstring(L,buf,(size_t)n); +return 1; +} +static const struct luaL_Reg bitlib[] = { +{"tobit",tobit}, +{"bnot",bnot}, +{"band",band}, +{"bor",bor}, +{"bxor",bxor}, +{"lshift",lshift}, +{"rshift",rshift}, +{"arshift",arshift}, +{"rol",rol}, +{"ror",ror}, +{"bswap",bswap}, +{"tohex",tohex}, +{NULL,NULL} +}; +int main(int argc, char **argv){ + lua_State *L = luaL_newstate(); + int i; + luaL_openlibs(L); + luaL_register(L, "bit", bitlib); + if (argc < 2) return sizeof(void *); + lua_createtable(L, 0, 1); + lua_pushstring(L, argv[1]); + lua_rawseti(L, -2, 0); + lua_setglobal(L, "arg"); + if (luaL_loadfile(L, argv[1])) + goto err; + for (i = 2; i < argc; i++) + lua_pushstring(L, argv[i]); + if (lua_pcall(L, argc - 2, 0, 0)) { + err: + fprintf(stderr, "Error: %s\n", lua_tostring(L, -1)); + return 1; + } + lua_close(L); + return 0; +} +]] + +local function read_sources() + local t = {} + for i, name in ipairs(LUA_FILES) do + local fp = assert(io.open(LUA_SOURCE..name, "r")) + t[i] = fp:read("*a") + assert(fp:close()) + end + t[#t+1] = CUSTOM_MAIN + return table.concat(t) +end + +local includes = {} + +local function merge_includes(src) + return gsub(src, '#include%s*"([^"]*)"%s*\n', function(name) + if includes[name] then return "" end + includes[name] = true + local fp = assert(io.open(LUA_SOURCE..name, "r")) + local src = fp:read("*a") + assert(fp:close()) + src = gsub(src, "#ifndef%s+%w+_h\n#define%s+%w+_h\n", "") + src = gsub(src, "#endif%s*$", "") + return merge_includes(src) + end) +end + +local function get_license(src) + return match(src, "/%*+\n%* Copyright %(.-%*/\n") +end + +local function fold_lines(src) + return gsub(src, "\\\n", " ") +end + +local strings = {} + +local function save_str(str) + local n = #strings+1 + strings[n] = str + return "\1"..n.."\2" +end + +local function save_strings(src) + src = gsub(src, '"[^"\n]*"', save_str) + return gsub(src, "'[^'\n]*'", save_str) +end + +local function restore_strings(src) + return gsub(src, "\1(%d+)\2", function(numstr) + return strings[tonumber(numstr)] + end) +end + +local function def_istrue(def) + return def == "INT_MAX > 2147483640L" or + def == "LUAI_BITSINT >= 32" or + def == "SIZE_Bx < LUAI_BITSINT-1" or + def == "cast" or + def == "defined(LUA_CORE)" or + def == "MINSTRTABSIZE" or + def == "LUA_MINBUFFER" or + def == "HARDSTACKTESTS" or + def == "UNUSED" +end + +local head, defs = {[[ +#ifdef _MSC_VER +typedef unsigned __int64 U64; +#else +typedef unsigned long long U64; +#endif +]]}, {} + +local function preprocess(src) + local t = { match(src, "^(.-)#") } + local lvl, on, oldon = 0, true, {} + for pp, def, txt in string.gmatch(src, "#(%w+) *([^\n]*)\n([^#]*)") do + if pp == "if" or pp == "ifdef" or pp == "ifndef" then + lvl = lvl + 1 + oldon[lvl] = on + on = def_istrue(def) + elseif pp == "else" then + if oldon[lvl] then + if on == false then on = true else on = false end + end + elseif pp == "elif" then + if oldon[lvl] then + on = def_istrue(def) + end + elseif pp == "endif" then + on = oldon[lvl] + lvl = lvl - 1 + elseif on then + if pp == "include" then + if not head[def] and not REMOVE_EXTINC[def] then + head[def] = true + head[#head+1] = "#include "..def.."\n" + end + elseif pp == "define" then + local k, sp, v = match(def, "([%w_]+)(%s*)(.*)") + if k and not (sp == "" and sub(v, 1, 1) == "(") then + defs[k] = gsub(v, "%a[%w_]*", function(tok) + return defs[tok] or tok + end) + else + t[#t+1] = "#define "..def.."\n" + end + elseif pp ~= "undef" then + error("unexpected directive: "..pp.." "..def) + end + end + if on then t[#t+1] = txt end + end + return gsub(table.concat(t), "%a[%w_]*", function(tok) + return defs[tok] or tok + end) +end + +local function merge_header(src, license) + local hdr = string.format([[ +/* This is a heavily customized and minimized copy of Lua %s. */ +/* It's only used to build LuaJIT. It does NOT have all standard functions! */ +]], LUA_VERSION) + return hdr..license..table.concat(head)..src +end + +local function strip_unused1(src) + return gsub(src, '( {"?([%w_]+)"?,%s+%a[%w_]*},\n)', function(line, func) + return REMOVE_LIB[func] and "" or line + end) +end + +local function strip_unused2(src) + return gsub(src, "Symbolic Execution.-}=", "") +end + +local function strip_unused3(src) + src = gsub(src, "extern", "static") + src = gsub(src, "\nstatic([^\n]-)%(([^)]*)%)%(", "\nstatic%1 %2(") + src = gsub(src, "#define lua_assert[^\n]*\n", "") + src = gsub(src, "lua_assert%b();?", "") + src = gsub(src, "default:\n}", "default:;\n}") + src = gsub(src, "lua_lock%b();", "") + src = gsub(src, "lua_unlock%b();", "") + src = gsub(src, "luai_threadyield%b();", "") + src = gsub(src, "luai_userstateopen%b();", "{}") + src = gsub(src, "luai_userstate%w+%b();", "") + src = gsub(src, "%(%(c==.*luaY_parser%)", "luaY_parser") + src = gsub(src, "trydecpoint%(ls,seminfo%)", + "luaX_lexerror(ls,\"malformed number\",TK_NUMBER)") + src = gsub(src, "int c=luaZ_lookahead%b();", "") + src = gsub(src, "luaL_register%(L,[^,]*,co_funcs%);\nreturn 2;", + "return 1;") + src = gsub(src, "getfuncname%b():", "NULL:") + src = gsub(src, "getobjname%b():", "NULL:") + src = gsub(src, "if%([^\n]*hookmask[^\n]*%)\n[^\n]*\n", "") + src = gsub(src, "if%([^\n]*hookmask[^\n]*%)%b{}\n", "") + src = gsub(src, "if%([^\n]*hookmask[^\n]*&&\n[^\n]*%b{}\n", "") + src = gsub(src, "(twoto%b()%()", "%1(size_t)") + src = gsub(src, "i<sizenode", "i<(int)sizenode") + return gsub(src, "\n\n+", "\n") +end + +local function strip_comments(src) + return gsub(src, "/%*.-%*/", " ") +end + +local function strip_whitespace(src) + src = gsub(src, "^%s+", "") + src = gsub(src, "%s*\n%s*", "\n") + src = gsub(src, "[ \t]+", " ") + src = gsub(src, "(%W) ", "%1") + return gsub(src, " (%W)", "%1") +end + +local function rename_tokens1(src) + src = gsub(src, "getline", "getline_") + src = gsub(src, "struct ([%w_]+)", "ZX%1") + return gsub(src, "union ([%w_]+)", "ZY%1") +end + +local function rename_tokens2(src) + src = gsub(src, "ZX([%w_]+)", "struct %1") + return gsub(src, "ZY([%w_]+)", "union %1") +end + +local function func_gather(src) + local nodes, list = {}, {} + local pos, len = 1, #src + while pos < len do + local d, w = match(src, "^(#define ([%w_]+)[^\n]*\n)", pos) + if d then + local n = #list+1 + list[n] = d + nodes[w] = n + else + local s + d, w, s = match(src, "^(([%w_]+)[^\n]*([{;])\n)", pos) + if not d then + d, w, s = match(src, "^(([%w_]+)[^(]*%b()([{;])\n)", pos) + if not d then d = match(src, "^[^\n]*\n", pos) end + end + if s == "{" then + d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3) + if sub(d, -2) == "{\n" then + d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3) + end + end + local k, v = nil, d + if w == "typedef" then + if match(d, "^typedef enum") then + head[#head+1] = d + else + k = match(d, "([%w_]+);\n$") + if not k then k = match(d, "^.-%(.-([%w_]+)%)%(") end + end + elseif w == "enum" then + head[#head+1] = v + elseif w ~= nil then + k = match(d, "^[^\n]-([%w_]+)[(%[=]") + if k then + if w ~= "static" and k ~= "main" then v = "static "..d end + else + k = w + end + end + if w and k then + local o = nodes[k] + if o then nodes["*"..k] = o end + local n = #list+1 + list[n] = v + nodes[k] = n + end + end + pos = pos + #d + end + return nodes, list +end + +local function func_visit(nodes, list, used, n) + local i = nodes[n] + for m in string.gmatch(list[i], "[%w_]+") do + if nodes[m] then + local j = used[m] + if not j then + used[m] = i + func_visit(nodes, list, used, m) + elseif i < j then + used[m] = i + end + end + end +end + +local function func_collect(src) + local nodes, list = func_gather(src) + local used = {} + func_visit(nodes, list, used, "main") + for n,i in pairs(nodes) do + local j = used[n] + if j and j < i then used["*"..n] = j end + end + for n,i in pairs(nodes) do + if not used[n] then list[i] = "" end + end + return table.concat(list) +end + +find_sources() +local src = read_sources() +src = merge_includes(src) +local license = get_license(src) +src = fold_lines(src) +src = strip_unused1(src) +src = save_strings(src) +src = strip_unused2(src) +src = strip_comments(src) +src = preprocess(src) +src = strip_whitespace(src) +src = strip_unused3(src) +src = rename_tokens1(src) +src = func_collect(src) +src = rename_tokens2(src) +src = restore_strings(src) +src = merge_header(src, license) +io.write(src) |