90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*
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** $Id: linit.c,v 1.14.1.1 2007/12/27 13:02:25 roberto Exp $
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** Initialization of libraries for lua.c
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** See Copyright Notice in lua.h
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*/
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#define linit_c
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#define LUA_LIB
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#define LUAC_CROSS_FILE
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#include "lua.h"
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#include "lualib.h"
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#include "lauxlib.h"
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#include "luaconf.h"
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#include "module.h"
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#if !defined(LUA_CROSS_COMPILER) && !(MIN_OPT_LEVEL==2 && LUA_OPTIMIZE_MEMORY==2)
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# error "NodeMCU modules must be built with LTR enabled (MIN_OPT_LEVEL=2 and LUA_OPTIMIZE_MEMORY=2)"
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#endif
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extern const luaR_entry strlib[], tab_funcs[], dblib[],
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co_funcs[], math_map[], syslib[];
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extern const luaR_entry syslib[], io_funcs[]; // Only used on cross-compile builds
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/*
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* The NodeMCU Lua initalisation has been adapted to use linker-based module
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* registration. This uses a PSECT naming convention to allow the lib and rotab
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* entries to be collected by the linker into consoliated tables. The linker
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* defines lua_libs_base and lua_rotable_base.
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*
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* This is not practical on Posix builds which use a standard loader declaration
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* so for cross compiler builds, separate ROTables are used for the base functions
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* and library ROTables, with the latter chained from the former using its __index
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* meta-method. In this case all library ROTables are defined here, avoiding the
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* need for linker magic is avoided on host builds.
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*/
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#if defined(LUA_CROSS_COMPILER)
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#define LUA_ROTABLES lua_rotable_base
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#define LUA_LIBS lua_libs_base
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#else /* declare Xtensa toolchain linker defined constants */
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extern const luaL_Reg lua_libs_base[];
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extern const luaR_entry lua_rotable_base[];
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#define LUA_ROTABLES lua_rotable_core
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#define LUA_LIBS lua_libs_core
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#endif
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static const LOCK_IN_SECTION(libs) luaL_reg LUA_LIBS[] = {
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{"", luaopen_base},
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{LUA_LOADLIBNAME, luaopen_package},
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{LUA_STRLIBNAME, luaopen_string},
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{LUA_TABLIBNAME, luaopen_table},
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{LUA_DBLIBNAME, luaopen_debug}
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#if defined(LUA_CROSS_COMPILER)
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,{LUA_IOLIBNAME, luaopen_io},
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{NULL, NULL}
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#endif
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};
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#define ENTRY(n,t) {LSTRKEY(n), LRO_ROVAL(t)}
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const LOCK_IN_SECTION(rotable) ROTable LUA_ROTABLES[] = {
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ENTRY("ROM", LUA_ROTABLES),
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ENTRY(LUA_STRLIBNAME, strlib),
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ENTRY(LUA_TABLIBNAME, tab_funcs),
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ENTRY(LUA_DBLIBNAME, dblib),
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ENTRY(LUA_COLIBNAME, co_funcs),
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ENTRY(LUA_MATHLIBNAME, math_map)
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#if defined(LUA_CROSS_COMPILER)
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,ENTRY(LUA_OSLIBNAME, syslib),
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LROT_END
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#endif
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};
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void luaL_openlibs (lua_State *L) {
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const luaL_Reg *lib = lua_libs_base;
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/* loop round and open libraries */
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for (; lib->name; lib++) {
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if (lib->func) {
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lua_pushcfunction(L, lib->func);
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lua_pushstring(L, lib->name);
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lua_call(L, 1, 0);
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}
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}
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}
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