mirror of
https://github.com/DarkFlippers/unleashed-firmware
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0154018363
* FBT: cdefines to env, libs order * API: strtod, modf, itoa, calloc * Apps: elk js * Apps: mjs * JS: scripts as assets * mjs: composite resolver * mjs: stack trace * ELK JS example removed * MJS thread, MJS lib modified to support script interruption * JS console UI * Module system, BadUSB bindings rework * JS notifications, simple dialog, BadUSB demo * Custom dialogs, dialog demo * MJS as system library, some dirty hacks to make it compile * Plugin-based js modules * js_uart(BadUART) module * js_uart: support for byte array arguments * Script icon and various fixes * File browser: multiple extensions filter, running js scripts from app loader * Running js scripts from archive browser * JS Runner as system app * Example scripts moved to /ext/apps/Scripts * JS bytecode listing generation * MJS builtin printf cleanup * JS examples cleanup * mbedtls version fix * Unused lib cleanup * Making PVS happy & TODOs cleanup * TODOs cleanup #2 * MJS: initial typed arrays support * JS: fix mem leak in uart destructor Co-authored-by: SG <who.just.the.doctor@gmail.com> Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/*
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* Copyright (c) 2017 Cesanta Software Limited
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* All rights reserved
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*/
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#ifndef MJS_CORE_H
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#define MJS_CORE_H
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#include "mjs_ffi.h"
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#include "mjs_gc.h"
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#include "mjs_internal.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif /* __cplusplus */
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#define JUMP_INSTRUCTION_SIZE 2
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enum mjs_call_stack_frame_item {
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CALL_STACK_FRAME_ITEM_RETVAL_STACK_IDX, /* TOS */
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CALL_STACK_FRAME_ITEM_LOOP_ADDR_IDX,
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CALL_STACK_FRAME_ITEM_SCOPE_IDX,
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CALL_STACK_FRAME_ITEM_RETURN_ADDR,
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CALL_STACK_FRAME_ITEM_THIS,
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CALL_STACK_FRAME_ITEMS_CNT
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};
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struct mjs_vals {
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/* Current `this` value */
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mjs_val_t this_obj;
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mjs_val_t dataview_proto;
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/*
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* The object against which the last `OP_GET` was invoked. Needed for
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* "method invocation pattern".
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*/
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mjs_val_t last_getprop_obj;
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};
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struct mjs_bcode_part {
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/* Global index of the bcode part */
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size_t start_idx;
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/* Actual bcode data */
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struct {
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const char* p; /* Memory chunk pointer */
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size_t len; /* Memory chunk length */
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} data;
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/*
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* Result of evaluation (not parsing: if there is an error during parsing,
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* the bcode is not even committed). It is used to determine whether we
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* need to evaluate the file: if file was already evaluated, and the result
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* was MJS_OK, then we won't evaluate it again. Otherwise, we will.
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*/
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mjs_err_t exec_res : 4;
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/* If set, bcode data does not need to be freed */
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unsigned in_rom : 1;
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};
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struct mjs {
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struct mbuf bcode_gen;
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struct mbuf bcode_parts;
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size_t bcode_len;
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struct mbuf stack;
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struct mbuf call_stack;
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struct mbuf arg_stack;
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struct mbuf scopes; /* Scope objects */
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struct mbuf loop_addresses; /* Addresses for breaks & continues */
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struct mbuf owned_strings; /* Sequence of (varint len, char data[]) */
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struct mbuf foreign_strings; /* Sequence of (varint len, char *data) */
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struct mbuf owned_values;
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struct mbuf json_visited_stack;
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struct mbuf array_buffers;
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struct mjs_vals vals;
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char* error_msg;
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char* stack_trace;
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enum mjs_err error;
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mjs_ffi_resolver_t* dlsym; /* Symbol resolver function for FFI */
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void* dlsym_handle;
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ffi_cb_args_t* ffi_cb_args; /* List of FFI args descriptors */
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size_t cur_bcode_offset;
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mjs_flags_poller_t exec_flags_poller;
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void* context;
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struct gc_arena object_arena;
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struct gc_arena property_arena;
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struct gc_arena ffi_sig_arena;
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unsigned inhibit_gc : 1;
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unsigned need_gc : 1;
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unsigned generate_jsc : 1;
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};
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/*
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* Bcode header: type of the items, and item numbers.
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*/
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typedef uint32_t mjs_header_item_t;
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enum mjs_header_items {
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MJS_HDR_ITEM_TOTAL_SIZE, /* Total size of the bcode (not counting the
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OP_BCODE_HEADER byte) */
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MJS_HDR_ITEM_BCODE_OFFSET, /* Offset to the start of the actual bcode (not
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counting the OP_BCODE_HEADER byte) */
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MJS_HDR_ITEM_MAP_OFFSET, /* Offset to the start of offset-to-line_no mapping
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k*/
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MJS_HDR_ITEMS_CNT
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};
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MJS_PRIVATE size_t mjs_get_func_addr(mjs_val_t v);
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MJS_PRIVATE int mjs_getretvalpos(struct mjs* mjs);
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MJS_PRIVATE enum mjs_type mjs_get_type(mjs_val_t v);
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/*
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* Prints stack trace starting from the given bcode offset; other offsets
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* (if any) will be fetched from the call_stack.
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*/
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MJS_PRIVATE void mjs_gen_stack_trace(struct mjs* mjs, size_t offset);
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MJS_PRIVATE mjs_val_t vtop(struct mbuf* m);
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MJS_PRIVATE size_t mjs_stack_size(const struct mbuf* m);
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MJS_PRIVATE mjs_val_t* vptr(struct mbuf* m, int idx);
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MJS_PRIVATE void push_mjs_val(struct mbuf* m, mjs_val_t v);
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MJS_PRIVATE mjs_val_t mjs_pop_val(struct mbuf* m);
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MJS_PRIVATE mjs_val_t mjs_pop(struct mjs* mjs);
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MJS_PRIVATE void mjs_push(struct mjs* mjs, mjs_val_t v);
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MJS_PRIVATE void mjs_die(struct mjs* mjs);
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#if defined(__cplusplus)
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}
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#endif /* __cplusplus */
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#endif /* MJS_CORE_H */
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