void __attribute__((noreturn)) kernel_main(unsigned int _memory_size)
{
struct vm_translation_map *init_map;
struct process *init_proc;
vm_page_init(_memory_size);
init_map = vm_translation_map_init();
boot_init_heap((char*) KERNEL_HEAP_BASE + PAGE_STRUCTURES_SIZE(_memory_size));
vm_address_space_init(init_map);
bootstrap_vm_cache();
bool_init_kernel_process();
boot_init_thread();
// Start other threads
REGISTERS[REG_THREAD_RESUME] = 0xffffffff;
spawn_kernel_thread("Grim Reaper", grim_reaper, 0);
init_proc = exec_program("program.elf");
// Idle task
for (;;)
{
if (list_is_empty(&init_proc->thread_list))
{
kprintf("init process has exited, shutting down\n");
REGISTERS[REG_THREAD_HALT] = 0xffffffff;
}
reschedule();
}
}
UINT cheetah_menu_mask(struct git_data *this_)
{
BOOL is_directory;
char *wd = wd_from_path(this_->name, &is_directory);
UINT selection = is_directory ? MENU_ITEM_DIR : MENU_ITEM_FILE;
int status;
char *prefix = get_git_prefix(wd, &status);
if (status < 0) /* something went terribly wrong */
selection = MENU_ITEM_LAST;
else if (status)
selection |= MENU_ITEM_NOREPO;
else {
char head_path[MAX_PATH] = "HEAD";
if (!is_directory)
sprintf(head_path, "HEAD:%s%s",
prefix,
this_->name + strlen(wd) + 1);
status = exec_program(wd, NULL, NULL, WAITMODE,
"git", "rev-parse", "--verify", head_path, NULL);
if (status < 0) /* something went terribly wrong */
selection = MENU_ITEM_LAST;
else
selection |= MENU_ITEM_REPO |
(status ?
MENU_ITEM_NOTRACK : MENU_ITEM_TRACK);
}
free(prefix);
free(wd);
return selection;
}
int true_main(int argc, char *argv[])
{
if (lisp_prompt) {
jl_lisp_prompt();
return 0;
}
jl_array_t *args = jl_alloc_cell_1d(argc);
jl_set_global(jl_current_module, jl_symbol("ARGS"), (jl_value_t*)args);
int i;
for (i=0; i < argc; i++) {
jl_arrayset(args, i, (jl_value_t*)jl_cstr_to_string(argv[i]));
}
jl_set_const(jl_current_module, jl_symbol("JULIA_HOME"),
jl_cstr_to_string(julia_home));
// run program if specified, otherwise enter REPL
if (program) {
return exec_program();
}
init_repl_environment();
jl_function_t *start_client =
(jl_function_t*)jl_get_global(jl_base_module, jl_symbol("_start"));
if (start_client) {
jl_apply(start_client, NULL, 0);
return 0;
}
// client event loop not available; use fallback blocking version
int iserr = 0;
again:
;
JL_TRY {
if (iserr) {
jl_show(jl_exception_in_transit);
ios_printf(ios_stdout, "\n\n");
iserr = 0;
}
while (1) {
char *input = read_expr("julia> ");
if (!input || ios_eof(ios_stdin)) {
ios_printf(ios_stdout, "\n");
break;
}
jl_value_t *ast = jl_parse_input_line(input);
jl_value_t *value = jl_toplevel_eval(ast);
jl_show(value);
ios_printf(ios_stdout, "\n\n");
}
}
JL_CATCH {
iserr = 1;
goto again;
}
return 0;
}
int true_main(int argc, char *argv[])
{
if (jl_base_module != NULL) {
jl_array_t *args = (jl_array_t*)jl_get_global(jl_base_module, jl_symbol("ARGS"));
assert(jl_array_len(args) == 0);
jl_array_grow_end(args, argc);
int i;
for (i=0; i < argc; i++) {
jl_value_t *s = (jl_value_t*)jl_cstr_to_string(argv[i]);
s->type = (jl_value_t*)jl_utf8_string_type;
jl_arrayset(args, s, i);
}
}
// run program if specified, otherwise enter REPL
if (program) {
int ret = exec_program();
uv_tty_reset_mode();
return ret;
}
jl_function_t *start_client =
(jl_function_t*)jl_get_global(jl_base_module, jl_symbol("_start"));
//uv_read_start(jl_stdin_tty,jl_alloc_read_buffer,&read_buffer);
if (start_client) {
jl_apply(start_client, NULL, 0);
//rl_cleanup_after_signal();
return 0;
}
// client event loop not available; use fallback blocking version
//install_read_event_handler(&echoBack);
int iserr = 0;
again:
;
JL_TRY {
if (iserr) {
//jl_show(jl_exception_in_transit);# What if the error was in show?
jl_printf(JL_STDERR, "\n\n");
iserr = 0;
}
uv_run(jl_global_event_loop(),UV_RUN_DEFAULT);
}
JL_CATCH {
iserr = 1;
JL_PUTS("error during run:\n",JL_STDERR);
jl_show(jl_stderr_obj(),jl_exception_in_transit);
JL_PUTS("\n",JL_STDOUT);
goto again;
}
uv_tty_reset_mode();
return iserr;
}
int true_main(int argc, char *argv[])
{
if (lisp_prompt) {
jl_lisp_prompt();
return 0;
}
jl_array_t *args = jl_alloc_cell_1d(argc);
jl_set_global(jl_system_module, jl_symbol("ARGS"), (jl_value_t*)args);
int i;
for (i=0; i < argc; i++) {
jl_arrayset(args, i, (jl_value_t*)jl_cstr_to_string(argv[i]));
}
jl_set_const(jl_system_module, jl_symbol("JULIA_HOME"),
jl_cstr_to_string(julia_home));
// run program if specified, otherwise enter REPL
if (program) {
return exec_program();
}
init_repl_environment();
have_color = detect_color();
char *prompt = have_color ? jl_prompt_color : jl_prompt_plain;
prompt_length = strlen(jl_prompt_plain);
prompt_string = prompt;
jl_function_t *start_client =
(jl_function_t*)
jl_get_global(jl_system_module, jl_symbol("_start"));
if (start_client == NULL) {
repl_print_prompt();
// client event loop not available; use fallback blocking version
int iserr = 0;
again:
;
JL_TRY {
if (iserr) {
if (have_color) {
ios_printf(ios_stdout, jl_color_normal);
}
jl_show(jl_exception_in_transit);
ios_printf(ios_stdout, "\n\n");
iserr = 0;
}
while (1) {
read_expr(prompt);
}
}
JL_CATCH {
iserr = 1;
goto again;
}
}
int true_main(int argc, char *argv[])
{
if (jl_base_module != NULL) {
jl_array_t *args = (jl_array_t*)jl_get_global(jl_base_module, jl_symbol("ARGS"));
if (args == NULL) {
args = jl_alloc_cell_1d(0);
jl_set_const(jl_base_module, jl_symbol("ARGS"), (jl_value_t*)args);
}
assert(jl_array_len(args) == 0);
jl_array_grow_end(args, argc);
int i;
for (i=0; i < argc; i++) {
jl_value_t *s = (jl_value_t*)jl_cstr_to_string(argv[i]);
s->type = (jl_value_t*)jl_utf8_string_type;
jl_arrayset(args, s, i);
}
}
// run program if specified, otherwise enter REPL
if (program) {
int ret = exec_program();
uv_tty_reset_mode();
return ret;
}
jl_function_t *start_client =
(jl_function_t*)jl_get_global(jl_base_module, jl_symbol("_start"));
if (start_client) {
jl_apply(start_client, NULL, 0);
return 0;
}
int iserr = 0;
again:
;
JL_TRY {
if (iserr) {
//jl_show(jl_exception_in_transit);# What if the error was in show?
jl_printf(JL_STDERR, "\n\n");
iserr = 0;
}
uv_run(jl_global_event_loop(),UV_RUN_DEFAULT);
}
JL_CATCH {
iserr = 1;
JL_PUTS("error during run:\n",JL_STDERR);
jl_show(jl_stderr_obj(),jl_exception_in_transit);
JL_PUTS("\n",JL_STDOUT);
goto again;
}
uv_tty_reset_mode();
return iserr;
}
int main( int argc, char ** argv) {
int status;
if (argc - 1 >= ARG_LIM) {
fprintf( stderr, "Too many arguments.\n");
return 1;
}
status = exec_program( argc, argv);
/* MinGW does not have fork() nor wait(). */
return status;
}
static BOOL build_branch_menu(struct git_data *data,
const struct menu_item *item,
void *platform)
{
void *submenu;
int status;
char *wd = wd_from_path(data->name, NULL);
struct strbuf output;
struct strbuf **lines, **it;
strbuf_init(&output, 0);
status = exec_program(wd, &output, NULL, WAITMODE,
"git", "branch", NULL);
free(wd);
if (status)
return FALSE;
submenu = start_submenu(data, item, platform);
lines = strbuf_split(&output, '\n');
for (it = lines; *it; it++) {
struct menu_item item = {
MENU_ITEM_CLEANUP, 0,
NULL, NULL,
NULL, menu_branch
};
strbuf_rtrim(*it);
item.string = strdup((*it)->buf + 2);
item.helptext = strdup((*it)->buf + 2);
item.flags = '*' == (*it)->buf[0] ?
MI_CHECKED | MI_DISABLED : 0;
if (build_item(data, &item, submenu))
append_active_menu(&item);
else
/*
* if the platform failed to create an item
* there is no point to try other items
*/
break;
}
end_submenu(platform, submenu);
/* technically, there is nothing to track for the menu engine */
return FALSE;
}
/**
* Tests 'exec_program()'.
*/
void test_exec_program()
{
allocate();
uint32_t test_instructions[2] = {
create_instruction(INSTR_NOOP, EMPTY_BYTE, EMPTY_BYTE, EMPTY_BYTE),
create_instruction(INSTR_EXIT, EMPTY_BYTE, EMPTY_BYTE, EMPTY_BYTE)};
load_program(test_instructions,
sizeof(test_instructions) / sizeof(test_instructions[0]),
flash);
exec_program();
// TODO: Maybe there is a better way to test this
// This is a very trivial test just to check that the pc was incremented
// after executing a no op
CU_ASSERT(0 != pc);
deallocate();
}
void exec_cmd(s_cmd_node *cmd)
{
assert(cmd);
if (DEBUG_EXEC)
cmd_debugger(cmd);
//FIXME: expansions here
if (!cmd->argv) {
if (cmd->prefix) exec_prefix(cmd->prefix, 0);
return;
}
if (func_exist(shell->func, cmd->argv[0]))
exec_function(cmd->argv);
else if (is_a_builtin(cmd->argv[0]))
shell->status = get_builtin(cmd->argv[0])(cmd->argv);
else
shell->status = exec_program(cmd);
}
static char *get_git_prefix(const char *wd, int *out_status)
{
char *eol;
int status;
struct strbuf output = STRBUF_INIT;
status = exec_program(wd, &output, NULL, WAITMODE,
"git", "rev-parse", "--show-prefix", NULL);
if (out_status)
*out_status = status;
if (status) {
strbuf_release(&output);
return NULL;
}
eol = strchr(output.buf, '\n');
if (eol)
*eol = 0;
return strbuf_detach(&output, NULL);
}
static NOINLINE int true_main(int argc, char *argv[])
{
if (jl_core_module != NULL) {
jl_array_t *args = (jl_array_t*)jl_get_global(jl_core_module, jl_symbol("ARGS"));
if (args == NULL) {
args = jl_alloc_cell_1d(0);
JL_GC_PUSH1(&args);
jl_set_const(jl_core_module, jl_symbol("ARGS"), (jl_value_t*)args);
JL_GC_POP();
}
assert(jl_array_len(args) == 0);
jl_array_grow_end(args, argc);
int i;
for (i=0; i < argc; i++) {
jl_value_t *s = (jl_value_t*)jl_cstr_to_string(argv[i]);
jl_set_typeof(s,jl_utf8_string_type);
jl_arrayset(args, s, i);
}
}
jl_function_t *start_client = jl_base_module ?
(jl_function_t*)jl_get_global(jl_base_module, jl_symbol("_start")) : NULL;
if (start_client) {
jl_apply(&start_client, 1);
return 0;
}
// run program if specified, otherwise enter REPL
if (argc > 0) {
if (strcmp(argv[0], "-")) {
return exec_program(argv[0]);
}
}
ios_puts("WARNING: Base._start not defined, falling back to economy mode repl.\n", ios_stdout);
if (!jl_errorexception_type)
ios_puts("WARNING: jl_errorexception_type not defined; any errors will be fatal.\n", ios_stdout);
while (!ios_eof(ios_stdin)) {
char *volatile line = NULL;
JL_TRY {
ios_puts("\njulia> ", ios_stdout);
ios_flush(ios_stdout);
line = ios_readline(ios_stdin);
jl_value_t *val = (jl_value_t*)jl_eval_string(line);
if (jl_exception_occurred()) {
jl_printf(JL_STDERR, "error during run:\n");
jl_static_show(JL_STDERR, jl_exception_in_transit);
jl_exception_clear();
}
else if (val) {
jl_static_show(JL_STDOUT, val);
}
jl_printf(JL_STDOUT, "\n");
free(line);
line = NULL;
uv_run(jl_global_event_loop(),UV_RUN_NOWAIT);
}
JL_CATCH {
if (line) {
free(line);
line = NULL;
}
jl_printf(JL_STDERR, "\nparser error:\n");
jl_static_show(JL_STDERR, jl_exception_in_transit);
jl_printf(JL_STDERR, "\n");
jlbacktrace();
}
}
return 0;
}
/************************************************************************
* *
* Process the Image Math string "cmd".
* (STATIC) *
* */
void
Win_math::exec_string(char *cmd)
{
int i;
int n;
int err = FALSE;
char *pc;
// The following get pointed to mallocated memory
ParmList dst_frames = NULL;
ParmList dst_ddls = NULL;
ParmList src_ddls = NULL;
ParmList src_ddl_vecs = NULL;
ParmList src_strings = NULL;
ParmList src_constants = NULL;
ParmList parmtree = NULL;
char *exec_path = NULL;
win_print_msg("Math: Parsing...");
/* Change New-Lines to Spaces */
while (pc=strchr(cmd, '\n')){
*pc = ' ';
}
/* Parse the left hand side */
int nout = parse_lhs(cmd, &dst_frames);
if (!nout){
err = TRUE;
}
/*printParm(dst_frames);/*CMP*/
/* Parse images on right hand side */
int nin = parse_rhs(cmd, &src_ddls, &src_ddl_vecs,
&src_strings, &src_constants);
if (!nin){
err = TRUE;
}
/*printParm(src_ddls);/*CMP*/
/*printParm(src_strings);/*CMP*/
/* Get the executable, compiling if necessary */
if (!err){
win_print_msg("Math: Compiling program...");
if (!(exec_path = get_program(cmd))){
err = TRUE;
}
}
/*fprintf(stderr,"exec_path=%s\n", exec_path);/*CMP*/
/* Execute the program */
parmtree = allocParm("parmtree", PL_PARM, 5);
setParmParm(parmtree, src_ddls, 0);
setParmParm(parmtree, dst_frames, 1);
setParmParm(parmtree, src_strings, 2);
setParmParm(parmtree, src_constants, 3);
setParmParm(parmtree, src_ddl_vecs, 4);
/*printParm(parmtree);/*CMP*/
if (!err){
win_print_msg("Math: Executing program...");
if (!exec_program(exec_path, parmtree, &dst_ddls)){
err = TRUE;
}
}
/* Display the results */
/*printParm(dst_ddls);/*CMP*/
void *vst;
int frame;
Gframe *gf;
n = countParm(dst_ddls);
for (i=0; i<n; i++){
getPtrParm(dst_ddls, &vst, i);
DDLSymbolTable *st = (DDLSymbolTable *)vst;
getIntParm(dst_frames, &frame, i);
/*fprintf(stderr,"st=0x%x, frame=%d\n", st, frame);/*CMP*/
if (st && frame){
char *fname;
st->GetValue("filename", fname);
char *newname = (char *)malloc(strlen(fname) + 20);
sprintf(newname,"%s-mathout#%d", fname, i+1);
st->SetValue("filename", newname);
free(newname);
gf = Gframe::get_frame_by_number(frame);
int display_data = TRUE;
int math_result = TRUE;
Frame_data::load_ddl_data(gf, NULL, NULL, &display_data, TRUE,
(DDLSymbolTable *)st, math_result);
}
}
/* Free memory */
free(parmtree); // Also frees params under it
free(dst_ddls);
win_print_msg("Math: Done.");
}
int main (int argc, char *argv[])
{
int use_stdin = 0;
FILE *newsfile;
FILE *newsfile_copy;
char *bodyfile_name = NULL;
FILE *bodyfile_r;
FILE *bodyfile_w;
char *mergefile_name = NULL;
FILE *mergefile;
#if defined(MAINLOOP)
volatile int w = 1;
while (w);
#endif
parse_commandline (argc, argv);
if (printversion)
{
printf ("%s (" PACKAGE ") " VERSION "\n", Name);
return 0;
}
if (!strcmp (newsfile_name, "-"))
{
use_stdin = 1;
newsfile_name = nb_tmpnam ();
newsfile_copy = open_write (newsfile_name);
newsfile = stdin;
mergefile = stdout;
}
else
{
newsfile_copy = NULL;
newsfile = open_read (newsfile_name);
mergefile_name = nb_tmpnam ();
mergefile = open_write (mergefile_name);
}
if (filter)
{
expand_argv (new_argv, "-");
exec_filter (new_argv, &bodyfile_w, &bodyfile_r);
writebody (newsfile, newsfile_copy, bodyfile_w,
remove_header, remove_quote, remove_sig, keep);
newsfile = open_read (newsfile_name);
readbody (newsfile, bodyfile_r, mergefile,
remove_header, remove_quote, remove_sig, keep);
check_child ();
}
else
{
bodyfile_name = nb_tmpnam ();
bodyfile_w = open_write (bodyfile_name);
expand_argv (new_argv, bodyfile_name);
writebody (newsfile, newsfile_copy, bodyfile_w,
remove_header, remove_quote, remove_sig, keep);
exec_program (new_argv);
check_child ();
newsfile = open_read (newsfile_name);
bodyfile_r = open_read (bodyfile_name);
readbody (newsfile, bodyfile_r, mergefile,
remove_header, remove_quote, remove_sig, keep);
}
if (use_stdin)
nb_unlink (newsfile_name);
else
nb_rename (mergefile_name, newsfile_name);
if (!filter)
nb_unlink (bodyfile_name);
return 0;
}
/**
* Run a command without using the shell.
*
* return 0 if the command run and exited with 0 status; Otherwise
* return -1
*
*/
int run_program(struct netcf *ncf, const char *const *argv, char **output)
{
pid_t childpid = -1;
int exitstatus, waitret;
char *argv_str;
int ret = -1;
char errbuf[128];
char *outtext = NULL;
int outfd = -1;
FILE *outfile = NULL;
size_t outlen;
if (!output)
output = &outtext;
argv_str = argv_to_string(argv);
ERR_NOMEM(argv_str == NULL, ncf);
exec_program(ncf, argv, argv_str, &childpid, &outfd);
ERR_BAIL(ncf);
printf("Attempting to execute %s\n", argv_str);
outfile = fdopen(outfd, "r");
ERR_THROW_STRERROR(outfile == NULL,ncf, EEXEC,
"Failed to create file stream for output while executing '%s': %s",
argv_str, errbuf);
*output = fread_file(outfile, &outlen);
ERR_THROW_STRERROR(*output == NULL, ncf, EEXEC,
"Error while reading output from execution of '%s': %s",
argv_str, errbuf);
/* finished with the stream. Close it so the child can exit. */
fclose(outfile);
outfile = NULL;
while ((waitret = waitpid(childpid, &exitstatus, 0) == -1) &&
errno == EINTR) {
/* empty loop */
}
ERR_THROW_STRERROR(waitret == -1, ncf, EEXEC,
"Failed waiting for completion of '%s': %s",
argv_str, errbuf);
ERR_THROW(!WIFEXITED(exitstatus) && WIFSIGNALED(exitstatus), ncf, EEXEC,
"'%s' terminated by signal: %d",
argv_str, WTERMSIG(exitstatus));
ERR_THROW(!WIFEXITED(exitstatus), ncf, EEXEC,
"'%s' terminated improperly", argv_str);
ERR_THROW(WEXITSTATUS(exitstatus) == EXIT_ENOENT, ncf, EEXEC,
"Running '%s' program not found", argv_str);
ERR_THROW(WEXITSTATUS(exitstatus) == EXIT_CANNOT_INVOKE, ncf, EEXEC,
"Running '%s' program located but not usable", argv_str);
ERR_THROW(WEXITSTATUS(exitstatus) == EXIT_SIGMASK, ncf, EEXEC,
"Running '%s' failed to reset child process signal mask",
argv_str);
ERR_THROW(WEXITSTATUS(exitstatus) == EXIT_DUP2, ncf, EEXEC,
"Running '%s' failed to dup2 child process stdout/stderr",
argv_str);
ERR_THROW(WEXITSTATUS(exitstatus) == EXIT_INVALID_IN_THIS_STATE, ncf, EINVALIDOP,
"Running '%s' operation is invalid in this state",
argv_str);
ERR_THROW(WEXITSTATUS(exitstatus) != 0, ncf, EEXEC,
"Running '%s' failed with exit code %d: %s",
argv_str, WEXITSTATUS(exitstatus), *output);
ret = 0;
error:
if (outfile)
fclose(outfile);
else if (outfd >= 0)
close(outfd);
FREE(outtext);
FREE(argv_str);
return ret;
}
// -17 pipe not created
// -21 multiple in redirects
// -22 multiple out redirects
int exec_command(char **tokens) {
char **curr_ptr = tokens;
bool end = 0;
int next_istream = STDIN_FILENO;
char *progv[64];
int progc = 0;
while(!end) {
char *program = *curr_ptr;
progv[progc] = program;
progc++;
curr_ptr++;
char **arg_start = curr_ptr;
int argc = 0;
int istream = next_istream;
int ostream = STDOUT_FILENO;
int errstream = STDERR_FILENO;
next_istream = STDIN_FILENO;
bool in_change = 0; //have these streams been redirected
bool out_change = 0;
// check for and process command symbols
while(1) {
if(istream != 0) {
in_change = 1;
}
if(*curr_ptr == 0) {
argc--;
end = 1;
break;
} else if(strcmp(*curr_ptr, "<") == 0) {
if(!in_change) {
return -21;
}
int file_desc = open(*(curr_ptr + 1), O_RDONLY);
if(file_desc == -1) {
return -11;
} else {
istream = file_desc;
in_change = 1;
}
} else if(strcmp(*curr_ptr, ">") == 0) {
if(!out_change) {
return -22;
}
int file_desc = open(*(curr_ptr + 1), O_WRONLY);
if(file_desc == -1) {
return -13;
} else {
ostream = file_desc;
out_change = 1;
}
} else if(strcmp(*curr_ptr, "|") == 0) {
if(!out_change) {
return -22;
}
int fd[2];
int err = pipe(fd);
if(err == -1) {
return -17;
}
ostream = fd[1];
next_istream = fd[0];
out_change = 1;
break;
}
curr_ptr++;
argc++;
}
// now execute
char *argv[argc + 1];
int j;
for(j = 0; j < argc; j++) {
argv[j] = *(arg_start + j);
}
argv[argc] = 0;
exec_program(program, argc, argv, istream, ostream, errstream);
}
int j;
for(j = 0; j < progc; j++) {
int prog_err_code;
int err = waitpid(getgrp(), &prog_err_code);
if(err == -1) { // child process didn't finish
return -2;
} else if(prog_err_code > 0) { // program failed
errno = prog_err_code;
return -1;
} else if(prog_err_code < 0) { // redirection failed
return prog_err_code;
}
}
}
