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-rw-r--r--unix/main.c87
1 files changed, 62 insertions, 25 deletions
diff --git a/unix/main.c b/unix/main.c
index f67c257cd7..633144c863 100644
--- a/unix/main.c
+++ b/unix/main.c
@@ -35,6 +35,7 @@
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
+#include <signal.h>
#include "py/mpstate.h"
#include "py/nlr.h"
@@ -90,19 +91,33 @@ STATIC int handle_uncaught_exception(mp_obj_base_t *exc) {
return 1;
}
+#define LEX_SRC_STR (1)
+#define LEX_SRC_VSTR (2)
+#define LEX_SRC_FILENAME (3)
+#define LEX_SRC_STDIN (4)
+
// Returns standard error codes: 0 for success, 1 for all other errors,
// except if FORCED_EXIT bit is set then script raised SystemExit and the
// value of the exit is in the lower 8 bits of the return value
-STATIC int execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
- if (lex == NULL) {
- printf("MemoryError: lexer could not allocate memory\n");
- return 1;
- }
-
+STATIC int execute_from_lexer(int source_kind, const void *source, mp_parse_input_kind_t input_kind, bool is_repl) {
mp_hal_set_interrupt_char(CHAR_CTRL_C);
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
+ // create lexer based on source kind
+ mp_lexer_t *lex;
+ if (source_kind == LEX_SRC_STR) {
+ const char *line = source;
+ lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
+ } else if (source_kind == LEX_SRC_VSTR) {
+ const vstr_t *vstr = source;
+ lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, vstr->buf, vstr->len, false);
+ } else if (source_kind == LEX_SRC_FILENAME) {
+ lex = mp_lexer_new_from_file((const char*)source);
+ } else { // LEX_SRC_STDIN
+ lex = mp_lexer_new_from_fd(MP_QSTR__lt_stdin_gt_, 0, false);
+ }
+
qstr source_name = lex->source_name;
#if MICROPY_PY___FILE__
@@ -240,8 +255,7 @@ STATIC int do_repl(void) {
mp_hal_stdio_mode_orig();
- mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line.buf, line.len, false);
- ret = execute_from_lexer(lex, parse_input_kind, true);
+ ret = execute_from_lexer(LEX_SRC_VSTR, &line, parse_input_kind, true);
if (ret & FORCED_EXIT) {
return ret;
}
@@ -249,7 +263,7 @@ STATIC int do_repl(void) {
#else
- // use GNU or simple readline
+ // use simple readline
for (;;) {
char *line = prompt(">>> ");
@@ -268,8 +282,7 @@ STATIC int do_repl(void) {
line = line3;
}
- mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, line, strlen(line), false);
- int ret = execute_from_lexer(lex, MP_PARSE_SINGLE_INPUT, true);
+ int ret = execute_from_lexer(LEX_SRC_STR, line, MP_PARSE_SINGLE_INPUT, true);
if (ret & FORCED_EXIT) {
return ret;
}
@@ -280,13 +293,11 @@ STATIC int do_repl(void) {
}
STATIC int do_file(const char *file) {
- mp_lexer_t *lex = mp_lexer_new_from_file(file);
- return execute_from_lexer(lex, MP_PARSE_FILE_INPUT, false);
+ return execute_from_lexer(LEX_SRC_FILENAME, file, MP_PARSE_FILE_INPUT, false);
}
STATIC int do_str(const char *str) {
- mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, str, strlen(str), false);
- return execute_from_lexer(lex, MP_PARSE_FILE_INPUT, false);
+ return execute_from_lexer(LEX_SRC_STR, str, MP_PARSE_FILE_INPUT, false);
}
STATIC int usage(char **argv) {
@@ -364,6 +375,10 @@ STATIC void pre_process_options(int argc, char **argv) {
if (word_adjust) {
heap_size = heap_size * BYTES_PER_WORD / 4;
}
+ // If requested size too small, we'll crash anyway
+ if (heap_size < 700) {
+ goto invalid_arg;
+ }
#endif
} else {
invalid_arg:
@@ -404,6 +419,20 @@ int main(int argc, char **argv) {
}
MP_NOINLINE int main_(int argc, char **argv) {
+ #ifdef SIGPIPE
+ // Do not raise SIGPIPE, instead return EPIPE. Otherwise, e.g. writing
+ // to peer-closed socket will lead to sudden termination of MicroPython
+ // process. SIGPIPE is particularly nasty, because unix shell doesn't
+ // print anything for it, so the above looks like completely sudden and
+ // silent termination for unknown reason. Ignoring SIGPIPE is also what
+ // CPython does. Note that this may lead to problems using MicroPython
+ // scripts as pipe filters, but again, that's what CPython does. So,
+ // scripts which want to follow unix shell pipe semantics (where SIGPIPE
+ // means "pipe was requested to terminate, it's not an error"), should
+ // catch EPIPE themselves.
+ signal(SIGPIPE, SIG_IGN);
+ #endif
+
mp_stack_set_limit(40000 * (BYTES_PER_WORD / 4));
pre_process_options(argc, argv);
@@ -415,9 +444,6 @@ MP_NOINLINE int main_(int argc, char **argv) {
mp_init();
- // create keyboard interrupt object
- MP_STATE_VM(keyboard_interrupt_obj) = mp_obj_new_exception(&mp_type_KeyboardInterrupt);
-
char *home = getenv("HOME");
char *path = getenv("MICROPYPATH");
if (path == NULL) {
@@ -427,7 +453,10 @@ MP_NOINLINE int main_(int argc, char **argv) {
path = "~/.micropython/lib:/usr/lib/micropython";
#endif
}
- mp_uint_t path_num = 1; // [0] is for current dir (or base dir of the script)
+ size_t path_num = 1; // [0] is for current dir (or base dir of the script)
+ if (*path == ':') {
+ path_num++;
+ }
for (char *p = path; p != NULL; p = strchr(p, PATHLIST_SEP_CHAR)) {
path_num++;
if (p != NULL) {
@@ -524,6 +553,9 @@ MP_NOINLINE int main_(int argc, char **argv) {
mp_obj_t mod;
nlr_buf_t nlr;
+ bool subpkg_tried = false;
+
+ reimport:
if (nlr_push(&nlr) == 0) {
mod = mp_builtin___import__(MP_ARRAY_SIZE(import_args), import_args);
nlr_pop();
@@ -532,11 +564,17 @@ MP_NOINLINE int main_(int argc, char **argv) {
return handle_uncaught_exception(nlr.ret_val) & 0xff;
}
- if (mp_obj_is_package(mod)) {
- // TODO
- mp_printf(&mp_stderr_print, "%s: -m for packages not yet implemented\n", argv[0]);
- exit(1);
+ if (mp_obj_is_package(mod) && !subpkg_tried) {
+ subpkg_tried = true;
+ vstr_t vstr;
+ int len = strlen(argv[a + 1]);
+ vstr_init(&vstr, len + sizeof(".__main__"));
+ vstr_add_strn(&vstr, argv[a + 1], len);
+ vstr_add_strn(&vstr, ".__main__", sizeof(".__main__") - 1);
+ import_args[0] = mp_obj_new_str_from_vstr(&mp_type_str, &vstr);
+ goto reimport;
}
+
ret = 0;
break;
} else if (strcmp(argv[a], "-X") == 0) {
@@ -582,8 +620,7 @@ MP_NOINLINE int main_(int argc, char **argv) {
ret = do_repl();
prompt_write_history();
} else {
- mp_lexer_t *lex = mp_lexer_new_from_fd(MP_QSTR__lt_stdin_gt_, 0, false);
- ret = execute_from_lexer(lex, MP_PARSE_FILE_INPUT, false);
+ ret = execute_from_lexer(LEX_SRC_STDIN, NULL, MP_PARSE_FILE_INPUT, false);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-18 19:00:01 +0000