5953029851

Committed 23 Aug 2023 02:56PM UTC coverage: 87.838% (+0.02%) from 87.821%

Build # 5953029851

Build Type

push

github

Committed by

fckxorg

Commit Message

tools: add cli flag to run profile dump parsers

It is really inconvenient to use a standalone shell script to parse
binary dumps from profilers. That is why this commit introduces a
CLI flag for tools to the LuaJIT, so now it is possible to parse
a memprof dump as simple as:
```
luajit -tm memprof.bin
luajit -tm --leak-only memprof.bin
```

And the sysprof too:
```
luajit -ts sysprof.bin
luajit -ts --split sysprof.bin
```

The `luajit-parse-memprof` and `luajit-parse-sysprof` are purged
as a result of this changes.

Closes tarantool/tarantool#5688

Run Details

5344 of 6007 branches covered (88.96%)

Branch coverage included in aggregate %.

19 of 19 new or added lines in 1 file covered. (100.0%)

20511 of 23428 relevant lines covered (87.55%)

877087.5 hits per line

Source File
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92.55

/src/luajit.c

/*
** LuaJIT frontend. Runs commands, scripts, read-eval-print (REPL) etc.
** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
**
** Major portions taken verbatim or adapted from the Lua interpreter.
** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define luajit_c

#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#include "luajit.h"

#include "lj_arch.h"

#if LJ_TARGET_POSIX
#include <unistd.h>
#define lua_stdin_is_tty()        isatty(0)
#elif LJ_TARGET_WINDOWS
#include <io.h>
#ifdef __BORLANDC__
#define lua_stdin_is_tty()        isatty(_fileno(stdin))
#else
#define lua_stdin_is_tty()        _isatty(_fileno(stdin))
#endif
#else
#define lua_stdin_is_tty()        1
#endif

#if !LJ_TARGET_CONSOLE
#include <signal.h>
#endif

static lua_State *globalL = NULL;
static const char *progname = LUA_PROGNAME;

#if !LJ_TARGET_CONSOLE
static void lstop(lua_State *L, lua_Debug *ar)
{
  (void)ar;  /* unused arg. */
  lua_sethook(L, NULL, 0, 0);
  /* Avoid luaL_error -- a C hook doesn't add an extra frame. */
  luaL_where(L, 0);
  lua_pushfstring(L, "%sinterrupted!", lua_tostring(L, -1));
  lua_error(L);
}

static void laction(int i)
{
  signal(i, SIG_DFL); /* if another SIGINT happens before lstop,
                         terminate process (default action) */
  lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
}
#endif

static void print_usage(void)
{
  fputs("usage: ", stderr);
  fputs(progname, stderr);
  fputs(" [options]... [script [args]...].\n"
  "Available options are:\n"
  "  -e chunk  Execute string " LUA_QL("chunk") ".\n"
  "  -l name   Require library " LUA_QL("name") ".\n"
  "  -b ...    Save or list bytecode.\n"
  "  -j cmd    Perform LuaJIT control command.\n"
  "  -O[opt]   Control LuaJIT optimizations.\n"
  "  -i        Enter interactive mode after executing " LUA_QL("script") ".\n"
  "  -v        Show version information.\n"
  "  -t<cmd>   Execute tool.\n"
  "  -E        Ignore environment variables.\n"
  "  --        Stop handling options.\n"
  "  -         Execute stdin and stop handling options.\n", stderr);
  fflush(stderr);
}

static void l_message(const char *pname, const char *msg)
{
  if (pname) { fputs(pname, stderr); fputc(':', stderr); fputc(' ', stderr); }
  fputs(msg, stderr); fputc('\n', stderr);
  fflush(stderr);
}

static int report(lua_State *L, int status)
{
  if (status && !lua_isnil(L, -1)) {
    const char *msg = lua_tostring(L, -1);
    if (msg == NULL) msg = "(error object is not a string)";
    l_message(progname, msg);
    lua_pop(L, 1);
  }
  return status;
}

static int traceback(lua_State *L)
{
  if (!lua_isstring(L, 1)) { /* Non-string error object? Try metamethod. */
    if (lua_isnoneornil(L, 1) ||
        !luaL_callmeta(L, 1, "__tostring") ||
        !lua_isstring(L, -1))
      return 1;  /* Return non-string error object. */
    lua_remove(L, 1);  /* Replace object by result of __tostring metamethod. */
  }
  luaL_traceback(L, L, lua_tostring(L, 1), 1);
  return 1;
}

static int docall(lua_State *L, int narg, int clear)
{
  int status;
  int base = lua_gettop(L) - narg;  /* function index */
  lua_pushcfunction(L, traceback);  /* push traceback function */
  lua_insert(L, base);  /* put it under chunk and args */
#if !LJ_TARGET_CONSOLE
  signal(SIGINT, laction);
#endif
  status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);
#if !LJ_TARGET_CONSOLE
  signal(SIGINT, SIG_DFL);
#endif
  lua_remove(L, base);  /* remove traceback function */
  /* force a complete garbage collection in case of errors */
  if (status != LUA_OK) lua_gc(L, LUA_GCCOLLECT, 0);
  return status;
}

static void print_version(void)
{
  fputs(LUAJIT_VERSION " -- " LUAJIT_COPYRIGHT ". " LUAJIT_URL "\n", stdout);
}

static void print_jit_status(lua_State *L)
{
  int n;
  const char *s;
  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
  lua_getfield(L, -1, "jit");  /* Get jit.* module table. */
  lua_remove(L, -2);
  lua_getfield(L, -1, "status");
  lua_remove(L, -2);
  n = lua_gettop(L);
  lua_call(L, 0, LUA_MULTRET);
  fputs(lua_toboolean(L, n) ? "JIT: ON" : "JIT: OFF", stdout);
  for (n++; (s = lua_tostring(L, n)); n++) {
    putc(' ', stdout);
    fputs(s, stdout);
  }
  putc('\n', stdout);
}

static void createargtable(lua_State *L, char **argv, int argc, int argf)
{
  int i;
  lua_createtable(L, argc - argf, argf);
  for (i = 0; i < argc; i++) {
    lua_pushstring(L, argv[i]);
    lua_rawseti(L, -2, i - argf);
  }
  lua_setglobal(L, "arg");
}

static int dofile(lua_State *L, const char *name)
{
  int status = luaL_loadfile(L, name) || docall(L, 0, 1);
  return report(L, status);
}

static int dostring(lua_State *L, const char *s, const char *name)
{
  int status = luaL_loadbuffer(L, s, strlen(s), name) || docall(L, 0, 1);
  return report(L, status);
}

static int dolibrary(lua_State *L, const char *name)
{
  lua_getglobal(L, "require");
  lua_pushstring(L, name);
  return report(L, docall(L, 1, 1));
}

static void write_prompt(lua_State *L, int firstline)
{
  const char *p;
  lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");
  p = lua_tostring(L, -1);
  if (p == NULL) p = firstline ? LUA_PROMPT : LUA_PROMPT2;
  fputs(p, stdout);
  fflush(stdout);
  lua_pop(L, 1);  /* remove global */
}

static int incomplete(lua_State *L, int status)
{
  if (status == LUA_ERRSYNTAX) {
    size_t lmsg;
    const char *msg = lua_tolstring(L, -1, &lmsg);
    const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
    if (strstr(msg, LUA_QL("<eof>")) == tp) {
      lua_pop(L, 1);
      return 1;
    }
  }
  return 0;  /* else... */
}

static int pushline(lua_State *L, int firstline)
{
  char buf[LUA_MAXINPUT];
  write_prompt(L, firstline);
  if (fgets(buf, LUA_MAXINPUT, stdin)) {
    size_t len = strlen(buf);
    if (len > 0 && buf[len-1] == '\n')
      buf[len-1] = '\0';
    if (firstline && buf[0] == '=')
      lua_pushfstring(L, "return %s", buf+1);
    else
      lua_pushstring(L, buf);
    return 1;
  }
  return 0;
}

static int loadline(lua_State *L)
{
  int status;
  lua_settop(L, 0);
  if (!pushline(L, 1))
    return -1;  /* no input */
  for (;;) {  /* repeat until gets a complete line */
    status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");
    if (!incomplete(L, status)) break;  /* cannot try to add lines? */
    if (!pushline(L, 0))  /* no more input? */
      return -1;
    lua_pushliteral(L, "\n");  /* add a new line... */
    lua_insert(L, -2);  /* ...between the two lines */
    lua_concat(L, 3);  /* join them */
  }
  lua_remove(L, 1);  /* remove line */
  return status;
}

static void dotty(lua_State *L)
{
  int status;
  const char *oldprogname = progname;
  progname = NULL;
  while ((status = loadline(L)) != -1) {
    if (status == LUA_OK) status = docall(L, 0, 0);
    report(L, status);
    if (status == LUA_OK && lua_gettop(L) > 0) {  /* any result to print? */
      lua_getglobal(L, "print");
      lua_insert(L, 1);
      if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)
        l_message(progname,
          lua_pushfstring(L, "error calling " LUA_QL("print") " (%s)",
                              lua_tostring(L, -1)));
    }
  }
  lua_settop(L, 0);  /* clear stack */
  fputs("\n", stdout);
  fflush(stdout);
  progname = oldprogname;
}

static int handle_script(lua_State *L, char **argx)
{
  int status;
  const char *fname = argx[0];
  if (strcmp(fname, "-") == 0 && strcmp(argx[-1], "--") != 0)
    fname = NULL;  /* stdin */
  status = luaL_loadfile(L, fname);
  if (status == LUA_OK) {
    /* Fetch args from arg table. LUA_INIT or -e might have changed them. */
    int narg = 0;
    lua_getglobal(L, "arg");
    if (lua_istable(L, -1)) {
      do {
        narg++;
        lua_rawgeti(L, -narg, narg);
      } while (!lua_isnil(L, -1));
      lua_pop(L, 1);
      lua_remove(L, -narg);
      narg--;
    } else {
      lua_pop(L, 1);
    }
    status = docall(L, narg, 0);
  }
  return report(L, status);
}

/* Load add-on module. */
static int loadjitmodule(lua_State *L)
{
  lua_getglobal(L, "require");
  lua_pushliteral(L, "jit.");
  lua_pushvalue(L, -3);
  lua_concat(L, 2);
  if (lua_pcall(L, 1, 1, 0)) {
    const char *msg = lua_tostring(L, -1);
    if (msg && !strncmp(msg, "module ", 7))
      goto nomodule;
    return report(L, 1);
  }
  lua_getfield(L, -1, "start");
  if (lua_isnil(L, -1)) {
  nomodule:
    l_message(progname,
              "unknown luaJIT command or jit.* modules not installed");
    return 1;
  }
  lua_remove(L, -2);  /* Drop module table. */
  return 0;
}

/* Run command with options. */
static int runcmdopt(lua_State *L, const char *opt)
{
  int narg = 0;
  if (opt && *opt) {
    for (;;) {  /* Split arguments. */
      const char *p = strchr(opt, ',');
      narg++;
      if (!p) break;
      if (p == opt)
        lua_pushnil(L);
      else
        lua_pushlstring(L, opt, (size_t)(p - opt));
      opt = p + 1;
    }
    if (*opt)
      lua_pushstring(L, opt);
    else
      lua_pushnil(L);
  }
  return report(L, lua_pcall(L, narg, 0, 0));
}

/* JIT engine control command: try jit library first or load add-on module. */
static int dojitcmd(lua_State *L, const char *cmd)
{
  const char *opt = strchr(cmd, '=');
  lua_pushlstring(L, cmd, opt ? (size_t)(opt - cmd) : strlen(cmd));
  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
  lua_getfield(L, -1, "jit");  /* Get jit.* module table. */
  lua_remove(L, -2);
  lua_pushvalue(L, -2);
  lua_gettable(L, -2);  /* Lookup library function. */
  if (!lua_isfunction(L, -1)) {
    lua_pop(L, 2);  /* Drop non-function and jit.* table, keep module name. */
    if (loadjitmodule(L))
      return 1;
  } else {
    lua_remove(L, -2);  /* Drop jit.* table. */
  }
  lua_remove(L, -2);  /* Drop module name. */
  return runcmdopt(L, opt ? opt+1 : opt);
}

static int runtoolcmd(lua_State *L, const char *tool_name)
{
  lua_getglobal(L, "require");
  lua_pushstring(L, tool_name);
  if (lua_pcall(L, 1, 1, 0)) {
    const char *msg = lua_tostring(L, -1);
    if (msg && !strncmp(msg, "module ", 7))
      l_message(progname,
        "unknown luaJIT command or tools not installed");
    return 1;
  }
  lua_getglobal(L, "arg");
  return report(L, lua_pcall(L, 1, 1, 0));
}

static int dotoolcmd(lua_State *L, const char *cmd)
{
  switch (cmd[0]) {
  case 'm':
    return runtoolcmd(L, "memprof");
  case 's':
    return runtoolcmd(L, "sysprof");
  default:
    break;
  }
  return -1;
}

/* Optimization flags. */
static int dojitopt(lua_State *L, const char *opt)
{
  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
  lua_getfield(L, -1, "jit.opt");  /* Get jit.opt.* module table. */
  lua_remove(L, -2);
  lua_getfield(L, -1, "start");
  lua_remove(L, -2);
  return runcmdopt(L, opt);
}

/* Save or list bytecode. */
static int dobytecode(lua_State *L, char **argv)
{
  int narg = 0;
  lua_pushliteral(L, "bcsave");
  if (loadjitmodule(L))
    return 1;
  if (argv[0][2]) {
    narg++;
    argv[0][1] = '-';
    lua_pushstring(L, argv[0]+1);
  }
  for (argv++; *argv != NULL; narg++, argv++)
    lua_pushstring(L, *argv);
  report(L, lua_pcall(L, narg, 0, 0));
  return -1;
}

/* check that argument has no extra characters at the end */
#define notail(x)        {if ((x)[2] != '\0') return -1;}

#define FLAGS_INTERACTIVE        1
#define FLAGS_VERSION                2
#define FLAGS_EXEC                4
#define FLAGS_OPTION                8
#define FLAGS_NOENV                16
#define FLAGS_TOOL                32

static int collectargs(char **argv, int *flags)
{
  int i;
  for (i = 1; argv[i] != NULL; i++) {
    if (argv[i][0] != '-')  /* Not an option? */
      return i;
    switch (argv[i][1]) {  /* Check option. */
    case '-':
      notail(argv[i]);
      return i+1;
    case '\0':
      return i;
    case 'i':
      notail(argv[i]);
      *flags |= FLAGS_INTERACTIVE;
      /* fallthrough */
    case 'v':
      notail(argv[i]);
      *flags |= FLAGS_VERSION;
      break;
    case 't':
      *flags |= FLAGS_TOOL;
      if (argv[i][2] == '\0') return -1;
      if (argv[i + 1] == NULL) return -1;
      return i + 1;
    case 'e':
      *flags |= FLAGS_EXEC;
    case 'j':  /* LuaJIT extension */
    case 'l':
      *flags |= FLAGS_OPTION;
      if (argv[i][2] == '\0') {
        i++;
        if (argv[i] == NULL) return -1;
      }
      break;
    case 'O': break;  /* LuaJIT extension */
    case 'b':  /* LuaJIT extension */
      if (*flags) return -1;
      *flags |= FLAGS_EXEC;
      return i+1;
    case 'E':
      *flags |= FLAGS_NOENV;
      break;
    default: return -1;  /* invalid option */
    }
  }
  return i;
}

static int runargs(lua_State *L, char **argv, int argn)
{
  int i;
  for (i = 1; i < argn; i++) {
    if (argv[i] == NULL) continue;
    lua_assert(argv[i][0] == '-');
    switch (argv[i][1]) {
    case 'e': {
      const char *chunk = argv[i] + 2;
      if (*chunk == '\0') chunk = argv[++i];
      lua_assert(chunk != NULL);
      if (dostring(L, chunk, "=(command line)") != 0)
        return 1;
      break;
      }
    case 'l': {
      const char *filename = argv[i] + 2;
      if (*filename == '\0') filename = argv[++i];
      lua_assert(filename != NULL);
      if (dolibrary(L, filename))
        return 1;
      break;
      }
    case 'j': {  /* LuaJIT extension. */
      const char *cmd = argv[i] + 2;
      if (*cmd == '\0') cmd = argv[++i];
      lua_assert(cmd != NULL);
      if (dojitcmd(L, cmd))
        return 1;
      break;
      }
    case 't': { /* Tarantool's fork extension. */
      const char *cmd = argv[i] + 2;
      return dotoolcmd(L, cmd) != LUA_OK;
    }
    case 'O':  /* LuaJIT extension. */
      if (dojitopt(L, argv[i] + 2))
        return 1;
      break;
    case 'b':  /* LuaJIT extension. */
      return dobytecode(L, argv+i);
    default: break;
    }
  }
  return LUA_OK;
}

static int handle_luainit(lua_State *L)
{
#if LJ_TARGET_CONSOLE
  const char *init = NULL;
#else
  const char *init = getenv(LUA_INIT);
#endif
  if (init == NULL)
    return LUA_OK;
  else if (init[0] == '@')
    return dofile(L, init+1);
  else
    return dostring(L, init, "=" LUA_INIT);
}

static struct Smain {
  char **argv;
  int argc;
  int status;
} smain;

static int pmain(lua_State *L)
{
  struct Smain *s = &smain;
  char **argv = s->argv;
  int argn;
  int flags = 0;
  globalL = L;
  if (argv[0] && argv[0][0]) progname = argv[0];

  LUAJIT_VERSION_SYM();  /* Linker-enforced version check. */

  argn = collectargs(argv, &flags);
  if (argn < 0) {  /* Invalid args? */
    print_usage();
    s->status = 1;
    return 0;
  }

  if ((flags & FLAGS_NOENV)) {
    lua_pushboolean(L, 1);
    lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
  }

  /* Stop collector during library initialization. */
  lua_gc(L, LUA_GCSTOP, 0);
  luaL_openlibs(L);
  lua_gc(L, LUA_GCRESTART, -1);

  createargtable(L, argv, s->argc, (flags & FLAGS_TOOL) ? argn - 1 : argn);

  if (!(flags & FLAGS_NOENV)) {
    s->status = handle_luainit(L);
    if (s->status != LUA_OK) return 0;
  }

  if ((flags & FLAGS_VERSION)) print_version();

  s->status = runargs(L, argv, argn);
  if (s->status != LUA_OK) return 0;

  if (s->argc > argn) {
    s->status = handle_script(L, argv + argn);
    if (s->status != LUA_OK) return 0;
  }

  if ((flags & FLAGS_INTERACTIVE)) {
    print_jit_status(L);
    dotty(L);
  } else if (s->argc == argn && !(flags & (FLAGS_EXEC|FLAGS_VERSION))) {
    if (lua_stdin_is_tty()) {
      print_version();
      print_jit_status(L);
      dotty(L);
    } else {
      dofile(L, NULL);  /* Executes stdin as a file. */
    }
  }
  return 0;
}

int main(int argc, char **argv)
{
  int status;
  lua_State *L = lua_open();
  if (L == NULL) {
    l_message(argv[0], "cannot create state: not enough memory");
    return EXIT_FAILURE;
  }
  smain.argc = argc;
  smain.argv = argv;
  status = lua_cpcall(L, pmain, NULL);
  report(L, status);
  lua_close(L);
  return (status || smain.status > 0) ? EXIT_FAILURE : EXIT_SUCCESS;
}


1	/*
2	** LuaJIT frontend. Runs commands, scripts, read-eval-print (REPL) etc.
3	** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h
4	**
5	** Major portions taken verbatim or adapted from the Lua interpreter.
6	** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
7	*/
8
9	#include <stdio.h>
10	#include <stdlib.h>
11	#include <string.h>
12
13	#define luajit_c
14
15	#include "lua.h"
16	#include "lauxlib.h"
17	#include "lualib.h"
18	#include "luajit.h"
19
20	#include "lj_arch.h"
21
22	#if LJ_TARGET_POSIX
23	#include <unistd.h>
24	#define lua_stdin_is_tty() isatty(0)
25	#elif LJ_TARGET_WINDOWS
26	#include <io.h>
27	#ifdef __BORLANDC__
28	#define lua_stdin_is_tty() isatty(_fileno(stdin))
29	#else
30	#define lua_stdin_is_tty() _isatty(_fileno(stdin))
31	#endif
32	#else
33	#define lua_stdin_is_tty() 1
34	#endif
35
36	#if !LJ_TARGET_CONSOLE
37	#include <signal.h>
38	#endif
39
40	static lua_State *globalL = NULL;
41	static const char *progname = LUA_PROGNAME;
42
43	#if !LJ_TARGET_CONSOLE
44	static void lstop(lua_State L, lua_Debug ar)	×
45	{
46	(void)ar; /* unused arg. */	×
47	lua_sethook(L, NULL, 0, 0);	×
48	/* Avoid luaL_error -- a C hook doesn't add an extra frame. */
49	luaL_where(L, 0);	×
50	lua_pushfstring(L, "%sinterrupted!", lua_tostring(L, -1));	×
51	lua_error(L);	×
52	}	×
53
54	static void laction(int i)	×
55	{
56	signal(i, SIG_DFL); /* if another SIGINT happens before lstop,	×
57	terminate process (default action) */
58	lua_sethook(globalL, lstop, LUA_MASKCALL \| LUA_MASKRET \| LUA_MASKCOUNT, 1);	×
59	}	×
60	#endif
61
62	static void print_usage(void)	6✔
63	{
64	fputs("usage: ", stderr);	6✔
65	fputs(progname, stderr);	6✔
66	fputs(" [options]... [script [args]...].\n"	6✔
67	"Available options are:\n"
68	" -e chunk Execute string " LUA_QL("chunk") ".\n"
69	" -l name Require library " LUA_QL("name") ".\n"
70	" -b ... Save or list bytecode.\n"
71	" -j cmd Perform LuaJIT control command.\n"
72	" -O[opt] Control LuaJIT optimizations.\n"
73	" -i Enter interactive mode after executing " LUA_QL("script") ".\n"
74	" -v Show version information.\n"
75	" -t<cmd> Execute tool.\n"
76	" -E Ignore environment variables.\n"
77	" -- Stop handling options.\n"
78	" - Execute stdin and stop handling options.\n", stderr);
79	fflush(stderr);	6✔
80	}	6✔
81
82	static void l_message(const char pname, const char msg)	8✔
83	{
84	if (pname) { fputs(pname, stderr); fputc(':', stderr); fputc(' ', stderr); }	8✔
85	fputs(msg, stderr); fputc('\n', stderr);	8✔
86	fflush(stderr);	8✔
87	}	8✔
88
89	static int report(lua_State *L, int status)	504✔
90	{
91	if (status && !lua_isnil(L, -1)) {	504✔
92	const char *msg = lua_tostring(L, -1);	7✔
93	if (msg == NULL) msg = "(error object is not a string)";	7✔
94	l_message(progname, msg);	7✔
95	lua_pop(L, 1);	7✔
96	}
97	return status;	504✔
98	}
99
100	static int traceback(lua_State *L)	3✔
101	{
102	if (!lua_isstring(L, 1)) { /* Non-string error object? Try metamethod. */	3✔
103	if (lua_isnoneornil(L, 1) \|\|	2✔
104	!luaL_callmeta(L, 1, "__tostring") \|\|	1✔
105	!lua_isstring(L, -1))	×
106	return 1; /* Return non-string error object. */	1✔
107	lua_remove(L, 1); /* Replace object by result of __tostring metamethod. */	×
108	}
109	luaL_traceback(L, L, lua_tostring(L, 1), 1);	2✔
110	return 1;	2✔
111	}
112
113	static int docall(lua_State *L, int narg, int clear)	433✔
114	{
115	int status;	433✔
116	int base = lua_gettop(L) - narg; /* function index */	433✔
117	lua_pushcfunction(L, traceback); /* push traceback function */	433✔
118	lua_insert(L, base); /* put it under chunk and args */	433✔
119	#if !LJ_TARGET_CONSOLE
120	signal(SIGINT, laction);	433✔
121	#endif
122	status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);	622✔
123	#if !LJ_TARGET_CONSOLE
124	signal(SIGINT, SIG_DFL);	345✔
125	#endif
126	lua_remove(L, base); /* remove traceback function */	345✔
127	/* force a complete garbage collection in case of errors */
128	if (status != LUA_OK) lua_gc(L, LUA_GCCOLLECT, 0);	345✔
129	return status;	345✔
130	}
131
132	static void print_version(void)	8✔
133	{
134	fputs(LUAJIT_VERSION " -- " LUAJIT_COPYRIGHT ". " LUAJIT_URL "\n", stdout);	8✔
135	}	8✔
136
137	static void print_jit_status(lua_State *L)	4✔
138	{
139	int n;	4✔
140	const char *s;	4✔
141	lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");	4✔
142	lua_getfield(L, -1, "jit"); /* Get jit.* module table. */	4✔
143	lua_remove(L, -2);	4✔
144	lua_getfield(L, -1, "status");	4✔
145	lua_remove(L, -2);	4✔
146	n = lua_gettop(L);	4✔
147	lua_call(L, 0, LUA_MULTRET);	4✔
148	fputs(lua_toboolean(L, n) ? "JIT: ON" : "JIT: OFF", stdout);	4✔
149	for (n++; (s = lua_tostring(L, n)); n++) {	60✔
150	putc(' ', stdout);	56✔
151	fputs(s, stdout);	56✔
152	}
153	putc('\n', stdout);	4✔
154	}	4✔
155
156	static void createargtable(lua_State L, char *argv, int argc, int argf)	223✔
157	{
158	int i;	223✔
159	lua_createtable(L, argc - argf, argf);	223✔
160	for (i = 0; i < argc; i++) {	1,454✔
161	lua_pushstring(L, argv[i]);	1,008✔
162	lua_rawseti(L, -2, i - argf);	1,008✔
163	}
164	lua_setglobal(L, "arg");	223✔
165	}	223✔
166
167	static int dofile(lua_State L, const char name)	1✔
168	{
169	int status = luaL_loadfile(L, name) \|\| docall(L, 0, 1);	1✔
170	return report(L, status);	1✔
171	}
172
173	static int dostring(lua_State L, const char s, const char *name)	188✔
174	{
175	int status = luaL_loadbuffer(L, s, strlen(s), name) \|\| docall(L, 0, 1);	188✔
176	return report(L, status);	185✔
177	}
178
179	static int dolibrary(lua_State L, const char name)	57✔
180	{
181	lua_getglobal(L, "require");	57✔
182	lua_pushstring(L, name);	57✔
183	return report(L, docall(L, 1, 1));	57✔
184	}
185
186	static void write_prompt(lua_State *L, int firstline)	131✔
187	{
188	const char *p;	131✔
189	lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");	240✔
190	p = lua_tostring(L, -1);	131✔
191	if (p == NULL) p = firstline ? LUA_PROMPT : LUA_PROMPT2;	131✔
192	fputs(p, stdout);	131✔
193	fflush(stdout);	131✔
194	lua_pop(L, 1); /* remove global */	131✔
195	}	131✔
196
197	static int incomplete(lua_State *L, int status)	127✔
198	{
199	if (status == LUA_ERRSYNTAX) {	127✔
200	size_t lmsg;	109✔
201	const char *msg = lua_tolstring(L, -1, &lmsg);	109✔
202	const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);	109✔
203	if (strstr(msg, LUA_QL("<eof>")) == tp) {	109✔
204	lua_pop(L, 1);	109✔
205	return 1;	109✔
206	}
207	}
208	return 0; /* else... */
209	}
210
211	static int pushline(lua_State *L, int firstline)	131✔
212	{
213	char buf[LUA_MAXINPUT];	131✔
214	write_prompt(L, firstline);	131✔
215	if (fgets(buf, LUA_MAXINPUT, stdin)) {	131✔
216	size_t len = strlen(buf);	127✔
217	if (len > 0 && buf[len-1] == '\n')	127✔
218	buf[len-1] = '\0';	125✔
219	if (firstline && buf[0] == '=')	127✔
220	lua_pushfstring(L, "return %s", buf+1);	5✔
221	else
222	lua_pushstring(L, buf);	122✔
223	return 1;	127✔
224	}
225	return 0;
226	}
227
228	static int loadline(lua_State *L)	22✔
229	{
230	int status;	22✔
231	lua_settop(L, 0);	22✔
232	if (!pushline(L, 1))	22✔
233	return -1; /* no input */
234	for (;;) { /* repeat until gets a complete line */	236✔
235	status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");	127✔
236	if (!incomplete(L, status)) break; /* cannot try to add lines? */	127✔
237	if (!pushline(L, 0)) /* no more input? */	109✔
238	return -1;
239	lua_pushliteral(L, "\n"); /* add a new line... */	109✔
240	lua_insert(L, -2); /* ...between the two lines */	109✔
241	lua_concat(L, 3); /* join them */	109✔
242	}
243	lua_remove(L, 1); /* remove line */	18✔
244	return status;	18✔
245	}
246
247	static void dotty(lua_State *L)	4✔
248	{
249	int status;	4✔
250	const char *oldprogname = progname;	4✔
251	progname = NULL;	4✔
252	while ((status = loadline(L)) != -1) {	26✔
253	if (status == LUA_OK) status = docall(L, 0, 0);	18✔
254	report(L, status);	18✔
255	if (status == LUA_OK && lua_gettop(L) > 0) { /* any result to print? */	18✔
256	lua_getglobal(L, "print");	5✔
257	lua_insert(L, 1);	5✔
258	if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)	5✔
259	l_message(progname,	×
260	lua_pushfstring(L, "error calling " LUA_QL("print") " (%s)",
261	lua_tostring(L, -1)));
262	}
263	}
264	lua_settop(L, 0); /* clear stack */	4✔
265	fputs("\n", stdout);	4✔
266	fflush(stdout);	4✔
267	progname = oldprogname;	4✔
268	}	4✔
269
270	static int handle_script(lua_State L, char *argx)	172✔
271	{
272	int status;	172✔
273	const char *fname = argx[0];	172✔
274	if (strcmp(fname, "-") == 0 && strcmp(argx[-1], "--") != 0)	172✔
275	fname = NULL; /* stdin */	4✔
276	status = luaL_loadfile(L, fname);	172✔
277	if (status == LUA_OK) {	172✔
278	/* Fetch args from arg table. LUA_INIT or -e might have changed them. */
279	int narg = 0;	171✔
280	lua_getglobal(L, "arg");	171✔
281	if (lua_istable(L, -1)) {	171✔
282	do {	229✔
283	narg++;	229✔
284	lua_rawgeti(L, -narg, narg);	229✔
285	} while (!lua_isnil(L, -1));	229✔
286	lua_pop(L, 1);	171✔
287	lua_remove(L, -narg);	171✔
288	narg--;	171✔
289	} else {
290	lua_pop(L, 1);	×
291	}
292	status = docall(L, narg, 0);	171✔
293	}
294	return report(L, status);	87✔
295	}
296
297	/* Load add-on module. */
298	static int loadjitmodule(lua_State *L)	10✔
299	{
300	lua_getglobal(L, "require");	10✔
301	lua_pushliteral(L, "jit.");	10✔
302	lua_pushvalue(L, -3);	10✔
303	lua_concat(L, 2);	10✔
304	if (lua_pcall(L, 1, 1, 0)) {	10✔
305	const char *msg = lua_tostring(L, -1);	1✔
306	if (msg && !strncmp(msg, "module ", 7))	1✔
307	goto nomodule;	1✔
308	return report(L, 1);	×
309	}
310	lua_getfield(L, -1, "start");	9✔
311	if (lua_isnil(L, -1)) {	9✔
312	nomodule:	×
313	l_message(progname,	1✔
314	"unknown luaJIT command or jit.* modules not installed");
315	return 1;	1✔
316	}
317	lua_remove(L, -2); /* Drop module table. */	9✔
318	return 0;	9✔
319	}
320
321	/* Run command with options. */
322	static int runcmdopt(lua_State L, const char opt)	10✔
323	{
324	int narg = 0;	10✔
325	if (opt && *opt) {	10✔
326	for (;;) { /* Split arguments. */	10✔
327	const char *p = strchr(opt, ',');	8✔
328	narg++;	8✔
329	if (!p) break;	8✔
330	if (p == opt)	2✔
331	lua_pushnil(L);	×
332	else
333	lua_pushlstring(L, opt, (size_t)(p - opt));	2✔
334	opt = p + 1;	2✔
335	}
336	if (*opt)	6✔
337	lua_pushstring(L, opt);	6✔
338	else
339	lua_pushnil(L);	×
340	}
341	return report(L, lua_pcall(L, narg, 0, 0));	10✔
342	}
343
344	/* JIT engine control command: try jit library first or load add-on module. */
345	static int dojitcmd(lua_State L, const char cmd)	4✔
346	{
347	const char *opt = strchr(cmd, '=');	4✔
348	lua_pushlstring(L, cmd, opt ? (size_t)(opt - cmd) : strlen(cmd));	4✔
349	lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");	4✔
350	lua_getfield(L, -1, "jit"); /* Get jit.* module table. */	4✔
351	lua_remove(L, -2);	4✔
352	lua_pushvalue(L, -2);	4✔
353	lua_gettable(L, -2); /* Lookup library function. */	4✔
354	if (!lua_isfunction(L, -1)) {	4✔
355	lua_pop(L, 2); /* Drop non-function and jit.* table, keep module name. */	1✔
356	if (loadjitmodule(L))	1✔
357	return 1;
358	} else {
359	lua_remove(L, -2); /* Drop jit.* table. */	3✔
360	}
361	lua_remove(L, -2); /* Drop module name. */	3✔
362	return runcmdopt(L, opt ? opt+1 : opt);	3✔
363	}
364
365	static int runtoolcmd(lua_State L, const char tool_name)	8✔
366	{
367	lua_getglobal(L, "require");	8✔
368	lua_pushstring(L, tool_name);	8✔
369	if (lua_pcall(L, 1, 1, 0)) {	8✔
370	const char *msg = lua_tostring(L, -1);	×
371	if (msg && !strncmp(msg, "module ", 7))	×
372	l_message(progname,	×
373	"unknown luaJIT command or tools not installed");
374	return 1;	×
375	}
376	lua_getglobal(L, "arg");	8✔
377	return report(L, lua_pcall(L, 1, 1, 0));	8✔
378	}
379
380	static int dotoolcmd(lua_State L, const char cmd)
381	{
382	switch (cmd[0]) {
383	case 'm':
384	return runtoolcmd(L, "memprof");
385	case 's':
386	return runtoolcmd(L, "sysprof");
387	default:
388	break;
389	}
390	return -1;
391	}
392
393	/* Optimization flags. */
394	static int dojitopt(lua_State L, const char opt)	7✔
395	{
396	lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");	7✔
397	lua_getfield(L, -1, "jit.opt"); /* Get jit.opt.* module table. */	7✔
398	lua_remove(L, -2);	7✔
399	lua_getfield(L, -1, "start");	7✔
400	lua_remove(L, -2);	7✔
401	return runcmdopt(L, opt);	7✔
402	}
403
404	/* Save or list bytecode. */
405	static int dobytecode(lua_State L, char *argv)	9✔
406	{
407	int narg = 0;	9✔
408	lua_pushliteral(L, "bcsave");	9✔
409	if (loadjitmodule(L))	9✔
410	return 1;
411	if (argv[0][2]) {	9✔
412	narg++;	4✔
413	argv[0][1] = '-';	4✔
414	lua_pushstring(L, argv[0]+1);	4✔
415	}
416	for (argv++; *argv != NULL; narg++, argv++)	29✔
417	lua_pushstring(L, *argv);	20✔
418	report(L, lua_pcall(L, narg, 0, 0));	9✔
419	return -1;	9✔
420	}
421
422	/* check that argument has no extra characters at the end */
423	#define notail(x) {if ((x)[2] != '\0') return -1;}
424
425	#define FLAGS_INTERACTIVE 1
426	#define FLAGS_VERSION 2
427	#define FLAGS_EXEC 4
428	#define FLAGS_OPTION 8
429	#define FLAGS_NOENV 16
430	#define FLAGS_TOOL 32
431
432	static int collectargs(char *argv, int flags)	229✔
433	{
434	int i;	229✔
435	for (i = 1; argv[i] != NULL; i++) {	495✔
436	if (argv[i][0] != '-') /* Not an option? */	465✔
437	return i;	169✔
438	switch (argv[i][1]) { /* Check option. */	296✔
439	case '-':	3✔
440	notail(argv[i]);	3✔
441	return i+1;	2✔
442	case '\0':
443	return i;
444	case 'i':	4✔
445	notail(argv[i]);	4✔
446	*flags \|= FLAGS_INTERACTIVE;	4✔
447	/* fallthrough */
448	case 'v':	8✔
449	notail(argv[i]);	8✔
450	*flags \|= FLAGS_VERSION;	8✔
451	break;	8✔
452	case 't':	10✔
453	*flags \|= FLAGS_TOOL;	10✔
454	if (argv[i][2] == '\0') return -1;	10✔
455	if (argv[i + 1] == NULL) return -1;	9✔
456	return i + 1;	9✔
457	case 'e':	191✔
458	*flags \|= FLAGS_EXEC;	191✔
459	case 'j': /* LuaJIT extension */	252✔
460	case 'l':
461	*flags \|= FLAGS_OPTION;	252✔
462	if (argv[i][2] == '\0') {	252✔
463	i++;	238✔
464	if (argv[i] == NULL) return -1;	238✔
465	}
466	break;
467	case 'O': break; /* LuaJIT extension */
468	case 'b': /* LuaJIT extension */	9✔
469	if (*flags) return -1;	9✔
470	*flags \|= FLAGS_EXEC;	9✔
471	return i+1;	9✔
472	case 'E':	1✔
473	*flags \|= FLAGS_NOENV;	1✔
474	break;	1✔
475	default: return -1; /* invalid option */
476	}
477	}
478	return i;
479	}
480
481	static int runargs(lua_State L, char *argv, int argn)	223✔
482	{
483	int i;	223✔
484	for (i = 1; i < argn; i++) {	482✔
485	if (argv[i] == NULL) continue;	285✔
486	lua_assert(argv[i][0] == '-');	285✔
487	switch (argv[i][1]) {	285✔
488	case 'e': {	188✔
489	const char *chunk = argv[i] + 2;	188✔
490	if (*chunk == '\0') chunk = argv[++i];	188✔
491	lua_assert(chunk != NULL);	188✔
492	if (dostring(L, chunk, "=(command line)") != 0)	188✔
493	return 1;
494	break;
495	}
496	case 'l': {	57✔
497	const char *filename = argv[i] + 2;	57✔
498	if (*filename == '\0') filename = argv[++i];	57✔
499	lua_assert(filename != NULL);	57✔
500	if (dolibrary(L, filename))	57✔
501	return 1;
502	break;
503	}
504	case 'j': { /* LuaJIT extension. */	4✔
505	const char *cmd = argv[i] + 2;	4✔
506	if (*cmd == '\0') cmd = argv[++i];	4✔
507	lua_assert(cmd != NULL);	4✔
508	if (dojitcmd(L, cmd))	4✔
509	return 1;
510	break;
511	}
512	case 't': { /* Tarantool's fork extension. */	9✔
513	const char *cmd = argv[i] + 2;	9✔
514	return dotoolcmd(L, cmd) != LUA_OK;	9✔
515	}
516	case 'O': /* LuaJIT extension. */	7✔
517	if (dojitopt(L, argv[i] + 2))	7✔
518	return 1;
519	break;
520	case 'b': /* LuaJIT extension. */	9✔
521	return dobytecode(L, argv+i);	9✔
522	default: break;
523	}
524	}
525	return LUA_OK;
526	}
527
528	static int handle_luainit(lua_State *L)	222✔
529	{
530	#if LJ_TARGET_CONSOLE
531	const char *init = NULL;
532	#else
533	const char *init = getenv(LUA_INIT);	222✔
534	#endif
535	if (init == NULL)	222✔
536	return LUA_OK;
537	else if (init[0] == '@')	×
538	return dofile(L, init+1);	×
539	else
540	return dostring(L, init, "=" LUA_INIT);	×
541	}
542
543	static struct Smain {
544	char **argv;
545	int argc;
546	int status;
547	} smain;
548
549	static int pmain(lua_State *L)	229✔
550	{
551	struct Smain *s = &smain;	229✔
552	char **argv = s->argv;	229✔
553	int argn;	229✔
554	int flags = 0;	229✔
555	globalL = L;	229✔
556	if (argv[0] && argv[0][0]) progname = argv[0];	229✔
557
558	LUAJIT_VERSION_SYM(); /* Linker-enforced version check. */	229✔
559
560	argn = collectargs(argv, &flags);	229✔
561	if (argn < 0) { /* Invalid args? */	229✔
562	print_usage();	6✔
563	s->status = 1;	6✔
564	return 0;	6✔
565	}
566
567	if ((flags & FLAGS_NOENV)) {	223✔
568	lua_pushboolean(L, 1);	1✔
569	lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");	1✔
570	}
571
572	/* Stop collector during library initialization. */
573	lua_gc(L, LUA_GCSTOP, 0);	223✔
574	luaL_openlibs(L);	223✔
575	lua_gc(L, LUA_GCRESTART, -1);	223✔
576
577	createargtable(L, argv, s->argc, (flags & FLAGS_TOOL) ? argn - 1 : argn);	223✔
578
579	if (!(flags & FLAGS_NOENV)) {	223✔
580	s->status = handle_luainit(L);	222✔
581	if (s->status != LUA_OK) return 0;	222✔
582	}
583
584	if ((flags & FLAGS_VERSION)) print_version();	223✔
585
586	s->status = runargs(L, argv, argn);	223✔
587	if (s->status != LUA_OK) return 0;	214✔
588
589	if (s->argc > argn) {	197✔
590	s->status = handle_script(L, argv + argn);	172✔
591	if (s->status != LUA_OK) return 0;	87✔
592	}
593
594	if ((flags & FLAGS_INTERACTIVE)) {	111✔
595	print_jit_status(L);	4✔
596	dotty(L);	4✔
597	} else if (s->argc == argn && !(flags & (FLAGS_EXEC\|FLAGS_VERSION))) {	107✔
598	if (lua_stdin_is_tty()) {	1✔
599	print_version();	×
600	print_jit_status(L);	×
601	dotty(L);	×
602	} else {
603	dofile(L, NULL); /* Executes stdin as a file. */	1✔
604	}
605	}
606	return 0;
607	}
608
609	int main(int argc, char **argv)	229✔
610	{
611	int status;	229✔
612	lua_State *L = lua_open();	229✔
613	if (L == NULL) {	229✔
614	l_message(argv[0], "cannot create state: not enough memory");	×
615	return EXIT_FAILURE;	×
616	}
617	smain.argc = argc;	229✔
618	smain.argv = argv;	229✔
619	status = lua_cpcall(L, pmain, NULL);	229✔
620	report(L, status);	135✔
621	lua_close(L);	135✔
622	return (status \|\| smain.status > 0) ? EXIT_FAILURE : EXIT_SUCCESS;	135✔
623	}
624

tarantool / luajit / 5953029851

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