1616 lines
42 KiB
C
1616 lines
42 KiB
C
/*
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* Command line execution tool. Useful for test cases and manual testing.
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* Also demonstrates some basic integration techniques.
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*
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* Optional features include:
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*
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* - To enable print()/alert() bindings, define DUK_CMDLINE_PRINTALERT_SUPPORT
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* and add extras/print-alert/duk_print_alert.c to compilation.
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*
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* - To enable console.log() etc, define DUK_CMDLINE_CONSOLE_SUPPORT
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* and add extras/console/duk_console.c to compilation.
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*
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* - To enable Duktape.Logger, define DUK_CMDLINE_LOGGING_SUPPORT
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* and add extras/logging/duk_logging.c to compilation.
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*
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* - To enable Duktape 1.x module loading support (require(),
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* Duktape.modSearch() etc), define DUK_CMDLINE_MODULE_SUPPORT and add
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* extras/module-duktape/duk_module_duktape.c to compilation.
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*
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* - To enable linenoise and other fancy stuff, compile with -DDUK_CMDLINE_FANCY.
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* It is not the default to maximize portability. You can also compile in
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* support for example allocators, grep for DUK_CMDLINE_*.
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*/
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/* Helper define to enable a feature set; can also use separate defines. */
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#if defined(DUK_CMDLINE_FANCY)
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#define DUK_CMDLINE_LINENOISE
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#define DUK_CMDLINE_LINENOISE_COMPLETION /* Enables completion and hints. */
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#define DUK_CMDLINE_RLIMIT
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#define DUK_CMDLINE_SIGNAL
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#endif
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#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || \
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defined(WIN64) || defined(_WIN64) || defined(__WIN64__)
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/* Suppress warnings about plain fopen() etc. */
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#define _CRT_SECURE_NO_WARNINGS
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#if defined(_MSC_VER) && (_MSC_VER < 1900)
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/* Workaround for snprintf() missing in older MSVC versions.
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* Note that _snprintf() may not NUL terminate the string, but
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* this difference does not matter here as a NUL terminator is
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* always explicitly added.
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*/
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#define snprintf _snprintf
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#endif
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#endif
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#if defined(DUK_CMDLINE_PTHREAD_STACK_CHECK)
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#define _GNU_SOURCE
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#include <pthread.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if defined(DUK_CMDLINE_SIGNAL)
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#include <signal.h>
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#endif
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#if defined(DUK_CMDLINE_RLIMIT)
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#include <sys/resource.h>
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#endif
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#if defined(DUK_CMDLINE_LINENOISE)
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#include "linenoise.h"
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#include <stdint.h> /* Assume C99/C++11 with linenoise. */
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#endif
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#if defined(DUK_CMDLINE_PRINTALERT_SUPPORT)
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#include "duk_print_alert.h"
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#endif
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#if defined(DUK_CMDLINE_CONSOLE_SUPPORT)
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#include "duk_console.h"
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#endif
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#if defined(DUK_CMDLINE_LOGGING_SUPPORT)
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#include "duk_logging.h"
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#endif
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#if defined(DUK_CMDLINE_MODULE_SUPPORT)
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#include "duk_module_duktape.h"
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#endif
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#if defined(DUK_CMDLINE_FILEIO)
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#include <errno.h>
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#endif
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#if defined(EMSCRIPTEN)
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#include <emscripten.h>
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#endif
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#if defined(DUK_CMDLINE_ALLOC_LOGGING)
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#include "duk_alloc_logging.h"
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#endif
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#if defined(DUK_CMDLINE_ALLOC_TORTURE)
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#include "duk_alloc_torture.h"
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#endif
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#if defined(DUK_CMDLINE_ALLOC_HYBRID)
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#include "duk_alloc_hybrid.h"
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#endif
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#include "duktape.h"
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#include "duk_cmdline.h"
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#if defined(DUK_CMDLINE_LOWMEM)
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#include "duk_alloc_pool.h"
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#endif
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#if defined(DUK_CMDLINE_DEBUGGER_SUPPORT)
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#include "duk_trans_socket.h"
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#endif
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#define MEM_LIMIT_NORMAL (128*1024*1024) /* 128 MB */
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#define MEM_LIMIT_HIGH (2047*1024*1024) /* ~2 GB */
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#define LINEBUF_SIZE 65536
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static int main_argc = 0;
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static char **main_argv = NULL;
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static int interactive_mode = 0;
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static int allow_bytecode = 0;
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#if defined(DUK_CMDLINE_DEBUGGER_SUPPORT)
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static int debugger_reattach = 0;
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#endif
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#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
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static int no_auto_complete = 0;
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#endif
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int duk_cmdline_stack_check(void);
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/*
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* Misc helpers
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*/
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static void print_greet_line(void) {
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printf("((o) Duktape%s %d.%d.%d (%s)\n",
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#if defined(DUK_CMDLINE_LINENOISE)
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" [linenoise]",
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#else
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"",
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#endif
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(int) (DUK_VERSION / 10000),
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(int) ((DUK_VERSION / 100) % 100),
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(int) (DUK_VERSION % 100),
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DUK_GIT_DESCRIBE);
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}
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#if defined(DUK_CMDLINE_RLIMIT)
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static void set_resource_limits(rlim_t mem_limit_value) {
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int rc;
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struct rlimit lim;
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rc = getrlimit(RLIMIT_AS, &lim);
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if (rc != 0) {
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fprintf(stderr, "Warning: cannot read RLIMIT_AS\n");
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return;
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}
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if (lim.rlim_max < mem_limit_value) {
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fprintf(stderr, "Warning: rlim_max < mem_limit_value (%d < %d)\n", (int) lim.rlim_max, (int) mem_limit_value);
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return;
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}
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lim.rlim_cur = mem_limit_value;
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lim.rlim_max = mem_limit_value;
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rc = setrlimit(RLIMIT_AS, &lim);
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if (rc != 0) {
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fprintf(stderr, "Warning: setrlimit failed\n");
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return;
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}
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#if 0
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fprintf(stderr, "Set RLIMIT_AS to %d\n", (int) mem_limit_value);
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#endif
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}
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#endif /* DUK_CMDLINE_RLIMIT */
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#if defined(DUK_CMDLINE_SIGNAL)
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static void my_sighandler(int x) {
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fprintf(stderr, "Got signal %d\n", x);
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fflush(stderr);
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}
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static void set_sigint_handler(void) {
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(void) signal(SIGINT, my_sighandler);
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(void) signal(SIGPIPE, SIG_IGN); /* avoid SIGPIPE killing process */
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}
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#endif /* DUK_CMDLINE_SIGNAL */
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static void cmdline_fatal_handler(void *udata, const char *msg) {
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(void) udata;
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fprintf(stderr, "*** FATAL ERROR: %s\n", msg ? msg : "no message");
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fprintf(stderr, "Causing intentional segfault...\n");
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fflush(stderr);
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*((volatile unsigned int *) 0) = (unsigned int) 0xdeadbeefUL;
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abort();
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}
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/* Print error to stderr and pop error. */
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static void print_pop_error(duk_context *ctx, FILE *f) {
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fprintf(f, "%s\n", duk_safe_to_stacktrace(ctx, -1));
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fflush(f);
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duk_pop(ctx);
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}
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static duk_ret_t wrapped_compile_execute(duk_context *ctx, void *udata) {
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const char *src_data;
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duk_size_t src_len;
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duk_uint_t comp_flags;
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(void) udata;
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/* XXX: Here it'd be nice to get some stats for the compilation result
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* when a suitable command line is given (e.g. code size, constant
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* count, function count. These are available internally but not through
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* the public API.
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*/
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/* Use duk_compile_lstring_filename() variant which avoids interning
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* the source code. This only really matters for low memory environments.
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*/
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/* [ ... bytecode_filename src_data src_len filename ] */
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src_data = (const char *) duk_require_pointer(ctx, -3);
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src_len = (duk_size_t) duk_require_uint(ctx, -2);
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if (src_data != NULL && src_len >= 1 && src_data[0] == (char) 0xbf) {
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/* Bytecode. */
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if (allow_bytecode) {
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void *buf;
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buf = duk_push_fixed_buffer(ctx, src_len);
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memcpy(buf, (const void *) src_data, src_len);
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duk_load_function(ctx);
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} else {
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(void) duk_type_error(ctx, "bytecode input rejected (use -b to allow bytecode inputs)");
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}
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} else {
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/* Source code. */
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comp_flags = DUK_COMPILE_SHEBANG;
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duk_compile_lstring_filename(ctx, comp_flags, src_data, src_len);
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}
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/* [ ... bytecode_filename src_data src_len function ] */
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/* Optional bytecode dump. */
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if (duk_is_string(ctx, -4)) {
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FILE *f;
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void *bc_ptr;
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duk_size_t bc_len;
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size_t wrote;
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char fnbuf[256];
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const char *filename;
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duk_dup_top(ctx);
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duk_dump_function(ctx);
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bc_ptr = duk_require_buffer_data(ctx, -1, &bc_len);
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filename = duk_require_string(ctx, -5);
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#if defined(EMSCRIPTEN)
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if (filename[0] == '/') {
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snprintf(fnbuf, sizeof(fnbuf), "%s", filename);
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} else {
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snprintf(fnbuf, sizeof(fnbuf), "/working/%s", filename);
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}
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#else
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snprintf(fnbuf, sizeof(fnbuf), "%s", filename);
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#endif
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fnbuf[sizeof(fnbuf) - 1] = (char) 0;
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f = fopen(fnbuf, "wb");
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if (!f) {
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(void) duk_generic_error(ctx, "failed to open bytecode output file");
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}
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wrote = fwrite(bc_ptr, 1, (size_t) bc_len, f); /* XXX: handle partial writes */
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(void) fclose(f);
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if (wrote != bc_len) {
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(void) duk_generic_error(ctx, "failed to write all bytecode");
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}
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return 0; /* duk_safe_call() cleans up */
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}
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#if 0
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/* Manual test for bytecode dump/load cycle: dump and load before
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* execution. Enable manually, then run "make ecmatest" for a
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* reasonably good coverage of different functions and programs.
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*/
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duk_dump_function(ctx);
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duk_load_function(ctx);
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#endif
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#if defined(DUK_CMDLINE_LOWMEM)
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lowmem_start_exec_timeout();
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#endif
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duk_push_global_object(ctx); /* 'this' binding */
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duk_call_method(ctx, 0);
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#if defined(DUK_CMDLINE_LOWMEM)
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lowmem_clear_exec_timeout();
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#endif
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if (interactive_mode) {
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/*
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* In interactive mode, write to stdout so output won't
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* interleave as easily.
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*
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* NOTE: the ToString() coercion may fail in some cases;
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* for instance, if you evaluate:
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*
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* ( {valueOf: function() {return {}},
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* toString: function() {return {}}});
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*
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* The error is:
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*
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* TypeError: coercion to primitive failed
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* duk_api.c:1420
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*
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* These are handled now by the caller which also has stack
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* trace printing support. User code can print out errors
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* safely using duk_safe_to_string().
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*/
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duk_push_global_stash(ctx);
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duk_get_prop_string(ctx, -1, "dukFormat");
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duk_dup(ctx, -3);
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duk_call(ctx, 1); /* -> [ ... res stash formatted ] */
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fprintf(stdout, "= %s\n", duk_to_string(ctx, -1));
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fflush(stdout);
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} else {
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/* In non-interactive mode, success results are not written at all.
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* It is important that the result value is not string coerced,
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* as the string coercion may cause an error in some cases.
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*/
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}
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return 0; /* duk_safe_call() cleans up */
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}
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/*
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* Minimal Linenoise completion support
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*/
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#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
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static duk_context *completion_ctx;
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static const char *linenoise_completion_script =
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"(function linenoiseCompletion(input, addCompletion) {\n"
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" // Find maximal trailing string which looks like a property\n"
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" // access. Look up all the components (starting from the global\n"
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" // object now) except the last; treat the last component as a\n"
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" // partial name and use it as a filter for possible properties.\n"
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" var match, propseq, obj, i, partial, names, name, sanity;\n"
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"\n"
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" if (!input) { return; }\n"
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" match = /^.*?((?:\\w+\\.)*\\w*)$/.exec(input);\n"
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" if (!match || !match[1]) { return; }\n"
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" var propseq = match[1].split('.');\n"
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"\n"
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" obj = Function('return this')();\n"
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" for (i = 0; i < propseq.length - 1; i++) {\n"
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" if (obj === void 0 || obj === null) { return; }\n"
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" obj = obj[propseq[i]];\n"
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" }\n"
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" if (obj === void 0 || obj === null) { return; }\n"
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"\n"
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" partial = propseq[propseq.length - 1];\n"
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" sanity = 1000;\n"
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" while (obj != null) {\n"
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" if (--sanity < 0) { throw new Error('sanity'); }\n"
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" names = Object.getOwnPropertyNames(Object(obj));\n"
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" for (i = 0; i < names.length; i++) {\n"
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" if (--sanity < 0) { throw new Error('sanity'); }\n"
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" name = names[i];\n"
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" if (Number(name) >= 0) { continue; } // ignore array keys\n"
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" if (name.substring(0, partial.length) !== partial) { continue; }\n"
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" if (name === partial) { addCompletion(input + '.'); continue; }\n"
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" addCompletion(input + name.substring(partial.length));\n"
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" }\n"
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" obj = Object.getPrototypeOf(Object(obj));\n"
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" }\n"
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"})";
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static const char *linenoise_hints_script =
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"(function linenoiseHints(input) {\n"
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" // Similar to completions but different handling for final results.\n"
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" var match, propseq, obj, i, partial, names, name, res, found, first, sanity;\n"
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"\n"
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" if (!input) { return; }\n"
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" match = /^.*?((?:\\w+\\.)*\\w*)$/.exec(input);\n"
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" if (!match || !match[1]) { return; }\n"
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" var propseq = match[1].split('.');\n"
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"\n"
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" obj = Function('return this')();\n"
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" for (i = 0; i < propseq.length - 1; i++) {\n"
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" if (obj === void 0 || obj === null) { return; }\n"
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" obj = obj[propseq[i]];\n"
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" }\n"
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" if (obj === void 0 || obj === null) { return; }\n"
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"\n"
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" partial = propseq[propseq.length - 1];\n"
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" res = [];\n"
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" found = Object.create(null); // keys already handled\n"
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" sanity = 1000;\n"
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" while (obj != null) {\n"
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" if (--sanity < 0) { throw new Error('sanity'); }\n"
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" names = Object.getOwnPropertyNames(Object(obj));\n"
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" first = true;\n"
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" for (i = 0; i < names.length; i++) {\n"
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" if (--sanity < 0) { throw new Error('sanity'); }\n"
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" name = names[i];\n"
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|
" if (Number(name) >= 0) { continue; } // ignore array keys\n"
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" if (name.substring(0, partial.length) !== partial) { continue; }\n"
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|
" if (name === partial) { continue; }\n"
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" if (found[name]) { continue; }\n"
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" found[name] = true;\n"
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" res.push(res.length === 0 ? name.substring(partial.length) : (first ? ' || ' : ' | ') + name);\n"
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" first = false;\n"
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" }\n"
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" obj = Object.getPrototypeOf(Object(obj));\n"
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" }\n"
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" return { hints: res.join(''), color: 35, bold: 1 };\n"
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"})";
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static duk_ret_t linenoise_add_completion(duk_context *ctx) {
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linenoiseCompletions *lc;
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duk_push_current_function(ctx);
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duk_get_prop_string(ctx, -1, "lc");
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lc = duk_require_pointer(ctx, -1);
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linenoiseAddCompletion(lc, duk_require_string(ctx, 0));
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return 0;
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}
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static char *linenoise_hints(const char *buf, int *color, int *bold) {
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duk_context *ctx;
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duk_int_t rc;
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ctx = completion_ctx;
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if (!ctx) {
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return NULL;
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}
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duk_push_global_stash(ctx);
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duk_get_prop_string(ctx, -1, "linenoiseHints");
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if (!buf) {
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duk_push_undefined(ctx);
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} else {
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duk_push_string(ctx, buf);
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}
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rc = duk_pcall(ctx, 1 /*nargs*/); /* [ stash func ] -> [ stash result ] */
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if (rc != 0) {
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const char *res;
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res = strdup(duk_safe_to_string(ctx, -1));
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*color = 31; /* red */
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*bold = 1;
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duk_pop_2(ctx);
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return (char *) (uintptr_t) res; /* uintptr_t cast to avoid const discard warning. */
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}
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|
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if (duk_is_object(ctx, -1)) {
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const char *tmp;
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const char *res = NULL;
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duk_get_prop_string(ctx, -1, "hints");
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tmp = duk_get_string(ctx, -1);
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if (tmp) {
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res = strdup(tmp);
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}
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duk_pop(ctx);
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duk_get_prop_string(ctx, -1, "color");
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*color = duk_to_int(ctx, -1);
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duk_pop(ctx);
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duk_get_prop_string(ctx, -1, "bold");
|
|
*bold = duk_to_int(ctx, -1);
|
|
duk_pop(ctx);
|
|
|
|
duk_pop_2(ctx);
|
|
return (char *) (uintptr_t) res; /* uintptr_t cast to avoid const discard warning. */
|
|
}
|
|
|
|
duk_pop_2(ctx);
|
|
return NULL;
|
|
}
|
|
|
|
static void linenoise_freehints(void *ptr) {
|
|
#if 0
|
|
printf("free hint: %p\n", (void *) ptr);
|
|
#endif
|
|
free(ptr);
|
|
}
|
|
|
|
static void linenoise_completion(const char *buf, linenoiseCompletions *lc) {
|
|
duk_context *ctx;
|
|
duk_int_t rc;
|
|
|
|
ctx = completion_ctx;
|
|
if (!ctx) {
|
|
return;
|
|
}
|
|
|
|
duk_push_global_stash(ctx);
|
|
duk_get_prop_string(ctx, -1, "linenoiseCompletion");
|
|
|
|
if (!buf) {
|
|
duk_push_undefined(ctx);
|
|
} else {
|
|
duk_push_string(ctx, buf);
|
|
}
|
|
duk_push_c_function(ctx, linenoise_add_completion, 2 /*nargs*/);
|
|
duk_push_pointer(ctx, (void *) lc);
|
|
duk_put_prop_string(ctx, -2, "lc");
|
|
|
|
rc = duk_pcall(ctx, 2 /*nargs*/); /* [ stash func callback ] -> [ stash result ] */
|
|
if (rc != 0) {
|
|
linenoiseAddCompletion(lc, duk_safe_to_string(ctx, -1));
|
|
}
|
|
duk_pop_2(ctx);
|
|
}
|
|
#endif /* DUK_CMDLINE_LINENOISE_COMPLETION */
|
|
|
|
/*
|
|
* Execute from file handle etc
|
|
*/
|
|
|
|
static int handle_fh(duk_context *ctx, FILE *f, const char *filename, const char *bytecode_filename) {
|
|
char *buf = NULL;
|
|
size_t bufsz;
|
|
size_t bufoff;
|
|
size_t got;
|
|
int rc;
|
|
int retval = -1;
|
|
|
|
buf = (char *) malloc(1024);
|
|
if (!buf) {
|
|
goto error;
|
|
}
|
|
bufsz = 1024;
|
|
bufoff = 0;
|
|
|
|
/* Read until EOF, avoid fseek/stat because it won't work with stdin. */
|
|
for (;;) {
|
|
size_t avail;
|
|
|
|
avail = bufsz - bufoff;
|
|
if (avail < 1024) {
|
|
size_t newsz;
|
|
char *buf_new;
|
|
#if 0
|
|
fprintf(stderr, "resizing read buffer: %ld -> %ld\n", (long) bufsz, (long) (bufsz * 2));
|
|
#endif
|
|
newsz = bufsz + (bufsz >> 2) + 1024; /* +25% and some extra */
|
|
buf_new = (char *) realloc(buf, newsz);
|
|
if (!buf_new) {
|
|
goto error;
|
|
}
|
|
buf = buf_new;
|
|
bufsz = newsz;
|
|
}
|
|
|
|
avail = bufsz - bufoff;
|
|
#if 0
|
|
fprintf(stderr, "reading input: buf=%p bufsz=%ld bufoff=%ld avail=%ld\n",
|
|
(void *) buf, (long) bufsz, (long) bufoff, (long) avail);
|
|
#endif
|
|
|
|
got = fread((void *) (buf + bufoff), (size_t) 1, avail, f);
|
|
#if 0
|
|
fprintf(stderr, "got=%ld\n", (long) got);
|
|
#endif
|
|
if (got == 0) {
|
|
break;
|
|
}
|
|
bufoff += got;
|
|
|
|
/* Emscripten specific: stdin EOF doesn't work as expected.
|
|
* Instead, when 'emduk' is executed using Node.js, a file
|
|
* piped to stdin repeats (!). Detect that repeat and cut off
|
|
* the stdin read. Ensure the loop repeats enough times to
|
|
* avoid detecting spurious loops.
|
|
*
|
|
* This only seems to work for inputs up to 256 bytes long.
|
|
*/
|
|
#if defined(EMSCRIPTEN)
|
|
if (bufoff >= 16384) {
|
|
size_t i, j, nloops;
|
|
int looped = 0;
|
|
|
|
for (i = 16; i < bufoff / 8; i++) {
|
|
int ok;
|
|
|
|
nloops = bufoff / i;
|
|
ok = 1;
|
|
for (j = 1; j < nloops; j++) {
|
|
if (memcmp((void *) buf, (void *) (buf + i * j), i) != 0) {
|
|
ok = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (ok) {
|
|
fprintf(stderr, "emscripten workaround: detect looping at index %ld, verified with %ld loops\n", (long) i, (long) (nloops - 1));
|
|
bufoff = i;
|
|
looped = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (looped) {
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
duk_push_string(ctx, bytecode_filename);
|
|
duk_push_pointer(ctx, (void *) buf);
|
|
duk_push_uint(ctx, (duk_uint_t) bufoff);
|
|
duk_push_string(ctx, filename);
|
|
|
|
interactive_mode = 0; /* global */
|
|
|
|
rc = duk_safe_call(ctx, wrapped_compile_execute, NULL /*udata*/, 4 /*nargs*/, 1 /*nret*/);
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
lowmem_clear_exec_timeout();
|
|
#endif
|
|
|
|
free(buf);
|
|
buf = NULL;
|
|
|
|
if (rc != DUK_EXEC_SUCCESS) {
|
|
print_pop_error(ctx, stderr);
|
|
goto error;
|
|
} else {
|
|
duk_pop(ctx);
|
|
retval = 0;
|
|
}
|
|
/* fall thru */
|
|
|
|
cleanup:
|
|
if (buf) {
|
|
free(buf);
|
|
buf = NULL;
|
|
}
|
|
return retval;
|
|
|
|
error:
|
|
fprintf(stderr, "error in executing file %s\n", filename);
|
|
fflush(stderr);
|
|
goto cleanup;
|
|
}
|
|
|
|
static int handle_file(duk_context *ctx, const char *filename, const char *bytecode_filename) {
|
|
FILE *f = NULL;
|
|
int retval;
|
|
char fnbuf[256];
|
|
|
|
/* Example of sending an application specific debugger notification. */
|
|
duk_push_string(ctx, "DebuggerHandleFile");
|
|
duk_push_string(ctx, filename);
|
|
duk_debugger_notify(ctx, 2);
|
|
|
|
#if defined(EMSCRIPTEN)
|
|
if (filename[0] == '/') {
|
|
snprintf(fnbuf, sizeof(fnbuf), "%s", filename);
|
|
} else {
|
|
snprintf(fnbuf, sizeof(fnbuf), "/working/%s", filename);
|
|
}
|
|
#else
|
|
snprintf(fnbuf, sizeof(fnbuf), "%s", filename);
|
|
#endif
|
|
fnbuf[sizeof(fnbuf) - 1] = (char) 0;
|
|
|
|
f = fopen(fnbuf, "rb");
|
|
if (!f) {
|
|
fprintf(stderr, "failed to open source file: %s\n", filename);
|
|
fflush(stderr);
|
|
goto error;
|
|
}
|
|
|
|
retval = handle_fh(ctx, f, filename, bytecode_filename);
|
|
|
|
fclose(f);
|
|
return retval;
|
|
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
static int handle_eval(duk_context *ctx, char *code) {
|
|
int rc;
|
|
int retval = -1;
|
|
|
|
duk_push_pointer(ctx, (void *) code);
|
|
duk_push_uint(ctx, (duk_uint_t) strlen(code));
|
|
duk_push_string(ctx, "eval");
|
|
|
|
interactive_mode = 0; /* global */
|
|
|
|
rc = duk_safe_call(ctx, wrapped_compile_execute, NULL /*udata*/, 3 /*nargs*/, 1 /*nret*/);
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
lowmem_clear_exec_timeout();
|
|
#endif
|
|
|
|
if (rc != DUK_EXEC_SUCCESS) {
|
|
print_pop_error(ctx, stderr);
|
|
} else {
|
|
duk_pop(ctx);
|
|
retval = 0;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
#if defined(DUK_CMDLINE_LINENOISE)
|
|
static int handle_interactive(duk_context *ctx) {
|
|
const char *prompt = "duk> ";
|
|
char *buffer = NULL;
|
|
int retval = 0;
|
|
int rc;
|
|
|
|
linenoiseSetMultiLine(1);
|
|
linenoiseHistorySetMaxLen(64);
|
|
#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
|
|
if (!no_auto_complete) {
|
|
linenoiseSetCompletionCallback(linenoise_completion);
|
|
linenoiseSetHintsCallback(linenoise_hints);
|
|
linenoiseSetFreeHintsCallback(linenoise_freehints);
|
|
duk_push_global_stash(ctx);
|
|
duk_eval_string(ctx, linenoise_completion_script);
|
|
duk_put_prop_string(ctx, -2, "linenoiseCompletion");
|
|
duk_eval_string(ctx, linenoise_hints_script);
|
|
duk_put_prop_string(ctx, -2, "linenoiseHints");
|
|
duk_pop(ctx);
|
|
}
|
|
#endif
|
|
|
|
for (;;) {
|
|
if (buffer) {
|
|
linenoiseFree(buffer);
|
|
buffer = NULL;
|
|
}
|
|
|
|
#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
|
|
completion_ctx = ctx;
|
|
#endif
|
|
buffer = linenoise(prompt);
|
|
#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
|
|
completion_ctx = NULL;
|
|
#endif
|
|
|
|
if (!buffer) {
|
|
break;
|
|
}
|
|
|
|
if (buffer && buffer[0] != (char) 0) {
|
|
linenoiseHistoryAdd(buffer);
|
|
}
|
|
|
|
duk_push_pointer(ctx, (void *) buffer);
|
|
duk_push_uint(ctx, (duk_uint_t) strlen(buffer));
|
|
duk_push_string(ctx, "input");
|
|
|
|
interactive_mode = 1; /* global */
|
|
|
|
rc = duk_safe_call(ctx, wrapped_compile_execute, NULL /*udata*/, 3 /*nargs*/, 1 /*nret*/);
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
lowmem_clear_exec_timeout();
|
|
#endif
|
|
|
|
if (buffer) {
|
|
linenoiseFree(buffer);
|
|
buffer = NULL;
|
|
}
|
|
|
|
if (rc != DUK_EXEC_SUCCESS) {
|
|
/* in interactive mode, write to stdout */
|
|
print_pop_error(ctx, stdout);
|
|
retval = -1; /* an error 'taints' the execution */
|
|
} else {
|
|
duk_pop(ctx);
|
|
}
|
|
}
|
|
|
|
if (buffer) {
|
|
linenoiseFree(buffer);
|
|
buffer = NULL;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
#else /* DUK_CMDLINE_LINENOISE */
|
|
static int handle_interactive(duk_context *ctx) {
|
|
const char *prompt = "duk> ";
|
|
char *buffer = NULL;
|
|
int retval = 0;
|
|
int rc;
|
|
int got_eof = 0;
|
|
|
|
buffer = (char *) malloc(LINEBUF_SIZE);
|
|
if (!buffer) {
|
|
fprintf(stderr, "failed to allocated a line buffer\n");
|
|
fflush(stderr);
|
|
retval = -1;
|
|
goto done;
|
|
}
|
|
|
|
while (!got_eof) {
|
|
size_t idx = 0;
|
|
|
|
fwrite(prompt, 1, strlen(prompt), stdout);
|
|
fflush(stdout);
|
|
|
|
for (;;) {
|
|
int c = fgetc(stdin);
|
|
if (c == EOF) {
|
|
got_eof = 1;
|
|
break;
|
|
} else if (c == '\n') {
|
|
break;
|
|
} else if (idx >= LINEBUF_SIZE) {
|
|
fprintf(stderr, "line too long\n");
|
|
fflush(stderr);
|
|
retval = -1;
|
|
goto done;
|
|
} else {
|
|
buffer[idx++] = (char) c;
|
|
}
|
|
}
|
|
|
|
duk_push_pointer(ctx, (void *) buffer);
|
|
duk_push_uint(ctx, (duk_uint_t) idx);
|
|
duk_push_string(ctx, "input");
|
|
|
|
interactive_mode = 1; /* global */
|
|
|
|
rc = duk_safe_call(ctx, wrapped_compile_execute, NULL /*udata*/, 3 /*nargs*/, 1 /*nret*/);
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
lowmem_clear_exec_timeout();
|
|
#endif
|
|
|
|
if (rc != DUK_EXEC_SUCCESS) {
|
|
/* in interactive mode, write to stdout */
|
|
print_pop_error(ctx, stdout);
|
|
retval = -1; /* an error 'taints' the execution */
|
|
} else {
|
|
duk_pop(ctx);
|
|
}
|
|
}
|
|
|
|
done:
|
|
if (buffer) {
|
|
free(buffer);
|
|
buffer = NULL;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
#endif /* DUK_CMDLINE_LINENOISE */
|
|
|
|
/*
|
|
* Simple file read/write bindings
|
|
*/
|
|
|
|
#if defined(DUK_CMDLINE_FILEIO)
|
|
static duk_ret_t fileio_read_file(duk_context *ctx) {
|
|
const char *fn;
|
|
char *buf;
|
|
size_t len;
|
|
size_t off;
|
|
int rc;
|
|
FILE *f;
|
|
|
|
fn = duk_require_string(ctx, 0);
|
|
f = fopen(fn, "rb");
|
|
if (!f) {
|
|
(void) duk_type_error(ctx, "cannot open file %s for reading, errno %ld: %s",
|
|
fn, (long) errno, strerror(errno));
|
|
}
|
|
|
|
rc = fseek(f, 0, SEEK_END);
|
|
if (rc < 0) {
|
|
(void) fclose(f);
|
|
(void) duk_type_error(ctx, "fseek() failed for %s, errno %ld: %s",
|
|
fn, (long) errno, strerror(errno));
|
|
}
|
|
len = (size_t) ftell(f);
|
|
rc = fseek(f, 0, SEEK_SET);
|
|
if (rc < 0) {
|
|
(void) fclose(f);
|
|
(void) duk_type_error(ctx, "fseek() failed for %s, errno %ld: %s",
|
|
fn, (long) errno, strerror(errno));
|
|
}
|
|
|
|
buf = (char *) duk_push_fixed_buffer(ctx, (duk_size_t) len);
|
|
for (off = 0; off < len;) {
|
|
size_t got;
|
|
got = fread((void *) (buf + off), 1, len - off, f);
|
|
if (ferror(f)) {
|
|
(void) fclose(f);
|
|
(void) duk_type_error(ctx, "error while reading %s", fn);
|
|
}
|
|
if (got == 0) {
|
|
if (feof(f)) {
|
|
break;
|
|
} else {
|
|
(void) fclose(f);
|
|
(void) duk_type_error(ctx, "error while reading %s", fn);
|
|
}
|
|
}
|
|
off += got;
|
|
}
|
|
|
|
if (f) {
|
|
(void) fclose(f);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static duk_ret_t fileio_write_file(duk_context *ctx) {
|
|
const char *fn;
|
|
const char *buf;
|
|
size_t len;
|
|
size_t off;
|
|
FILE *f;
|
|
|
|
fn = duk_require_string(ctx, 0);
|
|
f = fopen(fn, "wb");
|
|
if (!f) {
|
|
(void) duk_type_error(ctx, "cannot open file %s for writing, errno %ld: %s",
|
|
fn, (long) errno, strerror(errno));
|
|
}
|
|
|
|
len = 0;
|
|
buf = (char *) duk_require_buffer_data(ctx, 1, &len);
|
|
for (off = 0; off < len;) {
|
|
size_t got;
|
|
got = fwrite((const void *) (buf + off), 1, len - off, f);
|
|
if (ferror(f)) {
|
|
(void) fclose(f);
|
|
(void) duk_type_error(ctx, "error while writing %s", fn);
|
|
}
|
|
if (got == 0) {
|
|
(void) fclose(f);
|
|
(void) duk_type_error(ctx, "error while writing %s", fn);
|
|
}
|
|
off += got;
|
|
}
|
|
|
|
if (f) {
|
|
(void) fclose(f);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* DUK_CMDLINE_FILEIO */
|
|
|
|
/*
|
|
* String.fromBufferRaw()
|
|
*/
|
|
|
|
static duk_ret_t string_frombufferraw(duk_context *ctx) {
|
|
duk_buffer_to_string(ctx, 0);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Duktape heap lifecycle
|
|
*/
|
|
|
|
#if defined(DUK_CMDLINE_DEBUGGER_SUPPORT)
|
|
static duk_idx_t debugger_request(duk_context *ctx, void *udata, duk_idx_t nvalues) {
|
|
const char *cmd;
|
|
int i;
|
|
|
|
(void) udata;
|
|
|
|
if (nvalues < 1) {
|
|
duk_push_string(ctx, "missing AppRequest argument(s)");
|
|
return -1;
|
|
}
|
|
|
|
cmd = duk_get_string(ctx, -nvalues + 0);
|
|
|
|
if (cmd && strcmp(cmd, "CommandLine") == 0) {
|
|
if (!duk_check_stack(ctx, main_argc)) {
|
|
/* Callback should avoid errors for now, so use
|
|
* duk_check_stack() rather than duk_require_stack().
|
|
*/
|
|
duk_push_string(ctx, "failed to extend stack");
|
|
return -1;
|
|
}
|
|
for (i = 0; i < main_argc; i++) {
|
|
duk_push_string(ctx, main_argv[i]);
|
|
}
|
|
return main_argc;
|
|
}
|
|
duk_push_sprintf(ctx, "command not supported");
|
|
return -1;
|
|
}
|
|
|
|
static void debugger_detached(duk_context *ctx, void *udata) {
|
|
fprintf(stderr, "Debugger detached, udata: %p\n", (void *) udata);
|
|
fflush(stderr);
|
|
|
|
/* Ensure socket is closed even when detach is initiated by Duktape
|
|
* rather than debug client.
|
|
*/
|
|
duk_trans_socket_finish();
|
|
|
|
if (debugger_reattach) {
|
|
/* For automatic reattach testing. */
|
|
duk_trans_socket_init();
|
|
duk_trans_socket_waitconn();
|
|
fprintf(stderr, "Debugger reconnected, call duk_debugger_attach()\n");
|
|
fflush(stderr);
|
|
#if 0
|
|
/* This is not necessary but should be harmless. */
|
|
duk_debugger_detach(ctx);
|
|
#endif
|
|
duk_debugger_attach(ctx,
|
|
duk_trans_socket_read_cb,
|
|
duk_trans_socket_write_cb,
|
|
duk_trans_socket_peek_cb,
|
|
duk_trans_socket_read_flush_cb,
|
|
duk_trans_socket_write_flush_cb,
|
|
debugger_request,
|
|
debugger_detached,
|
|
NULL);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#define ALLOC_DEFAULT 0
|
|
#define ALLOC_LOGGING 1
|
|
#define ALLOC_TORTURE 2
|
|
#define ALLOC_HYBRID 3
|
|
#define ALLOC_LOWMEM 4
|
|
|
|
static duk_context *create_duktape_heap(int alloc_provider, int debugger, int lowmem_log) {
|
|
duk_context *ctx;
|
|
|
|
(void) lowmem_log; /* suppress warning */
|
|
|
|
ctx = NULL;
|
|
if (!ctx && alloc_provider == ALLOC_LOGGING) {
|
|
#if defined(DUK_CMDLINE_ALLOC_LOGGING)
|
|
ctx = duk_create_heap(duk_alloc_logging,
|
|
duk_realloc_logging,
|
|
duk_free_logging,
|
|
(void *) 0xdeadbeef,
|
|
cmdline_fatal_handler);
|
|
#else
|
|
fprintf(stderr, "Warning: option --alloc-logging ignored, no logging allocator support\n");
|
|
fflush(stderr);
|
|
#endif
|
|
}
|
|
if (!ctx && alloc_provider == ALLOC_TORTURE) {
|
|
#if defined(DUK_CMDLINE_ALLOC_TORTURE)
|
|
ctx = duk_create_heap(duk_alloc_torture,
|
|
duk_realloc_torture,
|
|
duk_free_torture,
|
|
(void *) 0xdeadbeef,
|
|
cmdline_fatal_handler);
|
|
#else
|
|
fprintf(stderr, "Warning: option --alloc-torture ignored, no torture allocator support\n");
|
|
fflush(stderr);
|
|
#endif
|
|
}
|
|
if (!ctx && alloc_provider == ALLOC_HYBRID) {
|
|
#if defined(DUK_CMDLINE_ALLOC_HYBRID)
|
|
void *udata = duk_alloc_hybrid_init();
|
|
if (!udata) {
|
|
fprintf(stderr, "Failed to init hybrid allocator\n");
|
|
fflush(stderr);
|
|
} else {
|
|
ctx = duk_create_heap(duk_alloc_hybrid,
|
|
duk_realloc_hybrid,
|
|
duk_free_hybrid,
|
|
udata,
|
|
cmdline_fatal_handler);
|
|
}
|
|
#else
|
|
fprintf(stderr, "Warning: option --alloc-hybrid ignored, no hybrid allocator support\n");
|
|
fflush(stderr);
|
|
#endif
|
|
}
|
|
if (!ctx && alloc_provider == ALLOC_LOWMEM) {
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
lowmem_init();
|
|
|
|
ctx = duk_create_heap(
|
|
lowmem_log ? lowmem_alloc_wrapped : duk_alloc_pool,
|
|
lowmem_log ? lowmem_realloc_wrapped : duk_realloc_pool,
|
|
lowmem_log ? lowmem_free_wrapped : duk_free_pool,
|
|
(void *) lowmem_pool_ptr,
|
|
cmdline_fatal_handler);
|
|
#else
|
|
fprintf(stderr, "Warning: option --alloc-ajsheap ignored, no ajsheap allocator support\n");
|
|
fflush(stderr);
|
|
#endif
|
|
}
|
|
if (!ctx && alloc_provider == ALLOC_DEFAULT) {
|
|
ctx = duk_create_heap(NULL, NULL, NULL, NULL, cmdline_fatal_handler);
|
|
}
|
|
|
|
if (!ctx) {
|
|
fprintf(stderr, "Failed to create Duktape heap\n");
|
|
fflush(stderr);
|
|
exit(1);
|
|
}
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
if (alloc_provider == ALLOC_LOWMEM) {
|
|
fprintf(stderr, "*** pool dump after heap creation ***\n");
|
|
lowmem_dump();
|
|
}
|
|
#endif
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
if (alloc_provider == ALLOC_LOWMEM) {
|
|
lowmem_register(ctx);
|
|
}
|
|
#endif
|
|
|
|
/* Register print() and alert() (removed in Duktape 2.x). */
|
|
#if defined(DUK_CMDLINE_PRINTALERT_SUPPORT)
|
|
duk_print_alert_init(ctx, 0 /*flags*/);
|
|
#endif
|
|
|
|
/* Register String.fromBufferRaw() which does a 1:1 buffer-to-string
|
|
* coercion needed by testcases. String.fromBufferRaw() is -not- a
|
|
* default built-in! For stripped builds the 'String' built-in
|
|
* doesn't exist and we create it here; for ROM builds it may be
|
|
* present but unwritable (which is ignored).
|
|
*/
|
|
duk_eval_string(ctx,
|
|
"(function(v){"
|
|
"if (typeof String === 'undefined') { String = {}; }"
|
|
"Object.defineProperty(String, 'fromBufferRaw', {value:v, configurable:true});"
|
|
"})");
|
|
duk_push_c_function(ctx, string_frombufferraw, 1 /*nargs*/);
|
|
(void) duk_pcall(ctx, 1);
|
|
duk_pop(ctx);
|
|
|
|
/* Register console object. */
|
|
#if defined(DUK_CMDLINE_CONSOLE_SUPPORT)
|
|
duk_console_init(ctx, DUK_CONSOLE_FLUSH /*flags*/);
|
|
#endif
|
|
|
|
/* Register Duktape.Logger (removed in Duktape 2.x). */
|
|
#if defined(DUK_CMDLINE_LOGGING_SUPPORT)
|
|
duk_logging_init(ctx, 0 /*flags*/);
|
|
#endif
|
|
|
|
/* Register require() (removed in Duktape 2.x). */
|
|
#if defined(DUK_CMDLINE_MODULE_SUPPORT)
|
|
duk_module_duktape_init(ctx);
|
|
#endif
|
|
|
|
/* Trivial readFile/writeFile bindings for testing. */
|
|
#if defined(DUK_CMDLINE_FILEIO)
|
|
duk_push_c_function(ctx, fileio_read_file, 1 /*nargs*/);
|
|
duk_put_global_string(ctx, "readFile");
|
|
duk_push_c_function(ctx, fileio_write_file, 2 /*nargs*/);
|
|
duk_put_global_string(ctx, "writeFile");
|
|
#endif
|
|
|
|
/* Stash a formatting function for evaluation results. */
|
|
duk_push_global_stash(ctx);
|
|
duk_eval_string(ctx,
|
|
"(function (E) {"
|
|
"return function format(v){"
|
|
"try{"
|
|
"return E('jx',v);"
|
|
"}catch(e){"
|
|
"return ''+v;"
|
|
"}"
|
|
"};"
|
|
"})(Duktape.enc)");
|
|
duk_put_prop_string(ctx, -2, "dukFormat");
|
|
duk_pop(ctx);
|
|
|
|
if (debugger) {
|
|
#if defined(DUK_CMDLINE_DEBUGGER_SUPPORT)
|
|
fprintf(stderr, "Debugger enabled, create socket and wait for connection\n");
|
|
fflush(stderr);
|
|
duk_trans_socket_init();
|
|
duk_trans_socket_waitconn();
|
|
fprintf(stderr, "Debugger connected, call duk_debugger_attach() and then execute requested file(s)/eval\n");
|
|
fflush(stderr);
|
|
duk_debugger_attach(ctx,
|
|
duk_trans_socket_read_cb,
|
|
duk_trans_socket_write_cb,
|
|
duk_trans_socket_peek_cb,
|
|
duk_trans_socket_read_flush_cb,
|
|
duk_trans_socket_write_flush_cb,
|
|
debugger_request,
|
|
debugger_detached,
|
|
NULL);
|
|
#else
|
|
fprintf(stderr, "Warning: option --debugger ignored, no debugger support\n");
|
|
fflush(stderr);
|
|
#endif
|
|
}
|
|
|
|
#if 0
|
|
/* Manual test for duk_debugger_cooperate() */
|
|
{
|
|
for (i = 0; i < 60; i++) {
|
|
printf("cooperate: %d\n", i);
|
|
usleep(1000000);
|
|
duk_debugger_cooperate(ctx);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return ctx;
|
|
}
|
|
|
|
static void destroy_duktape_heap(duk_context *ctx, int alloc_provider) {
|
|
(void) alloc_provider;
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
if (alloc_provider == ALLOC_LOWMEM) {
|
|
fprintf(stderr, "*** pool dump before duk_destroy_heap(), before forced gc ***\n");
|
|
lowmem_dump();
|
|
|
|
duk_gc(ctx, 0);
|
|
|
|
fprintf(stderr, "*** pool dump before duk_destroy_heap(), after forced gc ***\n");
|
|
lowmem_dump();
|
|
}
|
|
#endif
|
|
|
|
if (ctx) {
|
|
duk_destroy_heap(ctx);
|
|
}
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
if (alloc_provider == ALLOC_LOWMEM) {
|
|
fprintf(stderr, "*** pool dump after duk_destroy_heap() (should have zero allocs) ***\n");
|
|
lowmem_dump();
|
|
}
|
|
lowmem_free();
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Main
|
|
*/
|
|
|
|
int main(int argc, char *argv[]) {
|
|
duk_context *ctx = NULL;
|
|
int retval = 0;
|
|
int have_files = 0;
|
|
int have_eval = 0;
|
|
int interactive = 0;
|
|
int memlimit_high = 1;
|
|
int alloc_provider = ALLOC_DEFAULT;
|
|
int lowmem_log = 0;
|
|
int debugger = 0;
|
|
int recreate_heap = 0;
|
|
int no_heap_destroy = 0;
|
|
int verbose = 0;
|
|
int run_stdin = 0;
|
|
const char *compile_filename = NULL;
|
|
int i;
|
|
|
|
main_argc = argc;
|
|
main_argv = (char **) argv;
|
|
|
|
#if defined(EMSCRIPTEN)
|
|
/* Try to use NODEFS to provide access to local files. Mount the
|
|
* CWD as /working, and then prepend "/working/" to relative native
|
|
* paths in file calls to get something that works reasonably for
|
|
* relative paths. Emscripten doesn't support replacing virtual
|
|
* "/" with host "/" (the default MEMFS at "/" can't be unmounted)
|
|
* but we can mount "/tmp" as host "/tmp" to allow testcase runs.
|
|
*
|
|
* https://kripken.github.io/emscripten-site/docs/api_reference/Filesystem-API.html#filesystem-api-nodefs
|
|
* https://github.com/kripken/emscripten/blob/master/tests/fs/test_nodefs_rw.c
|
|
*/
|
|
EM_ASM(
|
|
/* At the moment it's not possible to replace the default MEMFS mounted at '/':
|
|
* https://github.com/kripken/emscripten/issues/2040
|
|
* https://github.com/kripken/emscripten/blob/incoming/src/library_fs.js#L1341-L1358
|
|
*/
|
|
/*
|
|
try {
|
|
FS.unmount("/");
|
|
} catch (e) {
|
|
console.log("Failed to unmount default '/' MEMFS mount: " + e);
|
|
}
|
|
*/
|
|
try {
|
|
FS.mkdir("/working");
|
|
FS.mount(NODEFS, { root: "." }, "/working");
|
|
} catch (e) {
|
|
console.log("Failed to mount NODEFS /working: " + e);
|
|
}
|
|
/* A virtual '/tmp' exists by default:
|
|
* https://gist.github.com/evanw/e6be28094f34451bd5bd#file-temp-js-L3806-L3809
|
|
*/
|
|
/*
|
|
try {
|
|
FS.mkdir("/tmp");
|
|
} catch (e) {
|
|
console.log("Failed to create virtual /tmp: " + e);
|
|
}
|
|
*/
|
|
try {
|
|
FS.mount(NODEFS, { root: "/tmp" }, "/tmp");
|
|
} catch (e) {
|
|
console.log("Failed to mount NODEFS /tmp: " + e);
|
|
}
|
|
);
|
|
#endif /* EMSCRIPTEN */
|
|
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
alloc_provider = ALLOC_LOWMEM;
|
|
#endif
|
|
(void) lowmem_log;
|
|
|
|
/*
|
|
* Signal handling setup
|
|
*/
|
|
|
|
#if defined(DUK_CMDLINE_SIGNAL)
|
|
set_sigint_handler();
|
|
|
|
/* This is useful at the global level; libraries should avoid SIGPIPE though */
|
|
/*signal(SIGPIPE, SIG_IGN);*/
|
|
#endif
|
|
|
|
/*
|
|
* Parse options
|
|
*/
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
char *arg = argv[i];
|
|
if (!arg) {
|
|
goto usage;
|
|
}
|
|
if (strcmp(arg, "--restrict-memory") == 0) {
|
|
memlimit_high = 0;
|
|
} else if (strcmp(arg, "-i") == 0) {
|
|
interactive = 1;
|
|
} else if (strcmp(arg, "-b") == 0) {
|
|
allow_bytecode = 1;
|
|
} else if (strcmp(arg, "-c") == 0) {
|
|
if (i == argc - 1) {
|
|
goto usage;
|
|
}
|
|
i++;
|
|
compile_filename = argv[i];
|
|
} else if (strcmp(arg, "-e") == 0) {
|
|
have_eval = 1;
|
|
if (i == argc - 1) {
|
|
goto usage;
|
|
}
|
|
i++; /* skip code */
|
|
} else if (strcmp(arg, "--alloc-default") == 0) {
|
|
alloc_provider = ALLOC_DEFAULT;
|
|
} else if (strcmp(arg, "--alloc-logging") == 0) {
|
|
alloc_provider = ALLOC_LOGGING;
|
|
} else if (strcmp(arg, "--alloc-torture") == 0) {
|
|
alloc_provider = ALLOC_TORTURE;
|
|
} else if (strcmp(arg, "--alloc-hybrid") == 0) {
|
|
alloc_provider = ALLOC_HYBRID;
|
|
} else if (strcmp(arg, "--alloc-lowmem") == 0) {
|
|
alloc_provider = ALLOC_LOWMEM;
|
|
} else if (strcmp(arg, "--lowmem-log") == 0) {
|
|
lowmem_log = 1;
|
|
} else if (strcmp(arg, "--debugger") == 0) {
|
|
debugger = 1;
|
|
#if defined(DUK_CMDLINE_DEBUGGER_SUPPORT)
|
|
} else if (strcmp(arg, "--reattach") == 0) {
|
|
debugger_reattach = 1;
|
|
#endif
|
|
} else if (strcmp(arg, "--recreate-heap") == 0) {
|
|
recreate_heap = 1;
|
|
} else if (strcmp(arg, "--no-heap-destroy") == 0) {
|
|
no_heap_destroy = 1;
|
|
} else if (strcmp(arg, "--no-auto-complete") == 0) {
|
|
#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
|
|
no_auto_complete = 1;
|
|
#endif
|
|
} else if (strcmp(arg, "--verbose") == 0) {
|
|
verbose = 1;
|
|
} else if (strcmp(arg, "--run-stdin") == 0) {
|
|
run_stdin = 1;
|
|
} else if (strlen(arg) >= 1 && arg[0] == '-') {
|
|
goto usage;
|
|
} else {
|
|
have_files = 1;
|
|
}
|
|
}
|
|
if (!have_files && !have_eval && !run_stdin) {
|
|
interactive = 1;
|
|
}
|
|
|
|
/*
|
|
* Memory limit
|
|
*/
|
|
|
|
#if defined(DUK_CMDLINE_RLIMIT)
|
|
set_resource_limits(memlimit_high ? MEM_LIMIT_HIGH : MEM_LIMIT_NORMAL);
|
|
#else
|
|
if (memlimit_high == 0) {
|
|
fprintf(stderr, "Warning: option --restrict-memory ignored, no rlimit support\n");
|
|
fflush(stderr);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Create heap
|
|
*/
|
|
|
|
ctx = create_duktape_heap(alloc_provider, debugger, lowmem_log);
|
|
|
|
/*
|
|
* Execute any argument file(s)
|
|
*/
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
char *arg = argv[i];
|
|
if (!arg) {
|
|
continue;
|
|
} else if (strlen(arg) == 2 && strcmp(arg, "-e") == 0) {
|
|
/* Here we know the eval arg exists but check anyway */
|
|
if (i == argc - 1) {
|
|
retval = 1;
|
|
goto cleanup;
|
|
}
|
|
if (handle_eval(ctx, argv[i + 1]) != 0) {
|
|
retval = 1;
|
|
goto cleanup;
|
|
}
|
|
i++; /* skip code */
|
|
continue;
|
|
} else if (strlen(arg) == 2 && strcmp(arg, "-c") == 0) {
|
|
i++; /* skip filename */
|
|
continue;
|
|
} else if (strlen(arg) >= 1 && arg[0] == '-') {
|
|
continue;
|
|
}
|
|
|
|
if (verbose) {
|
|
fprintf(stderr, "*** Executing file: %s\n", arg);
|
|
fflush(stderr);
|
|
}
|
|
|
|
if (handle_file(ctx, arg, compile_filename) != 0) {
|
|
retval = 1;
|
|
goto cleanup;
|
|
}
|
|
|
|
if (recreate_heap) {
|
|
if (verbose) {
|
|
fprintf(stderr, "*** Recreating heap...\n");
|
|
fflush(stderr);
|
|
}
|
|
|
|
destroy_duktape_heap(ctx, alloc_provider);
|
|
ctx = create_duktape_heap(alloc_provider, debugger, lowmem_log);
|
|
}
|
|
}
|
|
|
|
if (run_stdin) {
|
|
/* Running stdin like a full file (reading all lines before
|
|
* compiling) is useful with emduk:
|
|
* cat test.js | ./emduk --run-stdin
|
|
*/
|
|
if (handle_fh(ctx, stdin, "stdin", compile_filename) != 0) {
|
|
retval = 1;
|
|
goto cleanup;
|
|
}
|
|
|
|
if (recreate_heap) {
|
|
if (verbose) {
|
|
fprintf(stderr, "*** Recreating heap...\n");
|
|
fflush(stderr);
|
|
}
|
|
|
|
destroy_duktape_heap(ctx, alloc_provider);
|
|
ctx = create_duktape_heap(alloc_provider, debugger, lowmem_log);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Enter interactive mode if options indicate it
|
|
*/
|
|
|
|
if (interactive) {
|
|
print_greet_line();
|
|
if (handle_interactive(ctx) != 0) {
|
|
retval = 1;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Cleanup and exit
|
|
*/
|
|
|
|
cleanup:
|
|
if (interactive) {
|
|
fprintf(stderr, "Cleaning up...\n");
|
|
fflush(stderr);
|
|
}
|
|
|
|
if (ctx && no_heap_destroy) {
|
|
duk_gc(ctx, 0);
|
|
}
|
|
if (ctx && !no_heap_destroy) {
|
|
destroy_duktape_heap(ctx, alloc_provider);
|
|
}
|
|
ctx = NULL;
|
|
|
|
return retval;
|
|
|
|
/*
|
|
* Usage
|
|
*/
|
|
|
|
usage:
|
|
fprintf(stderr, "Usage: duk [options] [<filenames>]\n"
|
|
"\n"
|
|
" -i enter interactive mode after executing argument file(s) / eval code\n"
|
|
" -e CODE evaluate code\n"
|
|
" -c FILE compile into bytecode and write to FILE (use with only one file argument)\n"
|
|
" -b allow bytecode input files (memory unsafe for invalid bytecode)\n"
|
|
" --run-stdin treat stdin like a file, i.e. compile full input (not line by line)\n"
|
|
" --verbose verbose messages to stderr\n"
|
|
" --restrict-memory use lower memory limit (used by test runner)\n"
|
|
" --alloc-default use Duktape default allocator\n"
|
|
#if defined(DUK_CMDLINE_ALLOC_LOGGING)
|
|
" --alloc-logging use logging allocator, write alloc log to /tmp/duk-alloc-log.txt\n"
|
|
#endif
|
|
#if defined(DUK_CMDLINE_ALLOC_TORTURE)
|
|
" --alloc-torture use torture allocator\n"
|
|
#endif
|
|
#if defined(DUK_CMDLINE_ALLOC_HYBRID)
|
|
" --alloc-hybrid use hybrid allocator\n"
|
|
#endif
|
|
#if defined(DUK_CMDLINE_LOWMEM)
|
|
" --alloc-lowmem use pooled allocator (enabled by default for duk-low)\n"
|
|
" --lowmem-log write alloc log to /tmp/lowmem-alloc-log.txt\n"
|
|
#endif
|
|
#if defined(DUK_CMDLINE_DEBUGGER_SUPPORT)
|
|
" --debugger start example debugger\n"
|
|
" --reattach automatically reattach debugger on detach\n"
|
|
#endif
|
|
" --recreate-heap recreate heap after every file\n"
|
|
" --no-heap-destroy force GC, but don't destroy heap at end (leak testing)\n"
|
|
#if defined(DUK_CMDLINE_LINENOISE_COMPLETION)
|
|
" --no-auto-complete disable linenoise auto completion\n"
|
|
#else
|
|
" --no-auto-complete disable linenoise auto completion [ignored, not supported]\n"
|
|
#endif
|
|
"\n"
|
|
"If <filename> is omitted, interactive mode is started automatically.\n"
|
|
"\n"
|
|
"Input files can be either ECMAScript source files or bytecode files\n"
|
|
"(if -b is given). Bytecode files are not validated prior to loading,\n"
|
|
"so that incompatible or crafted files can cause memory unsafe behavior.\n"
|
|
"See discussion in\n"
|
|
"https://github.com/svaarala/duktape/blob/master/doc/bytecode.rst#memory-safety-and-bytecode-validation.\n");
|
|
fflush(stderr);
|
|
exit(1);
|
|
}
|
|
|
|
/* Example of how a native stack check can be implemented in a platform
|
|
* specific manner for DUK_USE_NATIVE_STACK_CHECK(). This example is for
|
|
* (Linux) pthreads, and rejects further native recursion if less than
|
|
* 16kB stack is left (conservative).
|
|
*/
|
|
#if defined(DUK_CMDLINE_PTHREAD_STACK_CHECK)
|
|
int duk_cmdline_stack_check(void) {
|
|
pthread_attr_t attr;
|
|
void *stackaddr;
|
|
size_t stacksize;
|
|
char *ptr;
|
|
char *ptr_base;
|
|
ptrdiff_t remain;
|
|
|
|
(void) pthread_getattr_np(pthread_self(), &attr);
|
|
(void) pthread_attr_getstack(&attr, &stackaddr, &stacksize);
|
|
ptr = (char *) &stacksize; /* Rough estimate of current stack pointer. */
|
|
ptr_base = (char *) stackaddr;
|
|
remain = ptr - ptr_base;
|
|
|
|
/* HIGH ADDR ----- stackaddr + stacksize
|
|
* |
|
|
* | stack growth direction
|
|
* v -- ptr, approximate used size
|
|
*
|
|
* LOW ADDR ----- ptr_base, end of stack (lowest address)
|
|
*/
|
|
|
|
#if 0
|
|
fprintf(stderr, "STACK CHECK: stackaddr=%p, stacksize=%ld, ptr=%p, remain=%ld\n",
|
|
stackaddr, (long) stacksize, (void *) ptr, (long) remain);
|
|
fflush(stderr);
|
|
#endif
|
|
if (remain < 16384) {
|
|
return 1;
|
|
}
|
|
return 0; /* 0: no error, != 0: throw RangeError */
|
|
}
|
|
#else
|
|
int duk_cmdline_stack_check(void) {
|
|
return 0;
|
|
}
|
|
#endif
|