shared: Introduce new top-level dir and move 1st party lib code there.

This commit moves all first-party code developed for this project from lib/
to shared/, so that lib/ now only contains third-party code.

The following directories are moved as-is from lib to shared:

    lib/libc            -> shared/libc
    lib/memzip          -> shared/memzip
    lib/netutils        -> shared/netutils
    lib/timeutils       -> shared/timeutils
    lib/upytesthelper   -> shared/upytesthelper

All files in lib/embed/ have been moved to shared/libc/.

lib/mp-readline has been moved to shared/readline.

lib/utils has been moved to shared/runtime, with the exception of
lib/utils/printf.c which has been moved to shared/libc/printf.c.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 0 insertions, 133 deletions

diff --git a/lib/utils/printf.c b/lib/utils/printf.c
deleted file mode 100644
index e8db2b999..000000000
--- a/lib/utils/printf.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2013, 2014 Damien P. George
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "py/mpconfig.h"
-
-#include <stdint.h>
-#include <string.h>
-#include <stdarg.h>
-
-#include "py/obj.h"
-#include "py/mphal.h"
-
-#if MICROPY_PY_BUILTINS_FLOAT
-#include "py/formatfloat.h"
-#endif
-
-#if MICROPY_DEBUG_PRINTERS
-int DEBUG_printf(const char *fmt, ...) {
-    va_list ap;
-    va_start(ap, fmt);
-    int ret = mp_vprintf(MICROPY_DEBUG_PRINTER, fmt, ap);
-    va_end(ap);
-    return ret;
-}
-#endif
-
-#if MICROPY_USE_INTERNAL_PRINTF
-
-#undef putchar  // Some stdlibs have a #define for putchar
-int printf(const char *fmt, ...);
-int vprintf(const char *fmt, va_list ap);
-int putchar(int c);
-int puts(const char *s);
-int vsnprintf(char *str, size_t size, const char *fmt, va_list ap);
-int snprintf(char *str, size_t size, const char *fmt, ...);
-
-int printf(const char *fmt, ...) {
-    va_list ap;
-    va_start(ap, fmt);
-    int ret = mp_vprintf(&mp_plat_print, fmt, ap);
-    va_end(ap);
-    return ret;
-}
-
-int vprintf(const char *fmt, va_list ap) {
-    return mp_vprintf(&mp_plat_print, fmt, ap);
-}
-
-// need this because gcc optimises printf("%c", c) -> putchar(c), and printf("a") -> putchar('a')
-int putchar(int c) {
-    char chr = c;
-    mp_hal_stdout_tx_strn_cooked(&chr, 1);
-    return chr;
-}
-
-// need this because gcc optimises printf("string\n") -> puts("string")
-int puts(const char *s) {
-    mp_hal_stdout_tx_strn_cooked(s, strlen(s));
-    char chr = '\n';
-    mp_hal_stdout_tx_strn_cooked(&chr, 1);
-    return 1;
-}
-
-typedef struct _strn_print_env_t {
-    char *cur;
-    size_t remain;
-} strn_print_env_t;
-
-STATIC void strn_print_strn(void *data, const char *str, size_t len) {
-    strn_print_env_t *strn_print_env = data;
-    if (len > strn_print_env->remain) {
-        len = strn_print_env->remain;
-    }
-    memcpy(strn_print_env->cur, str, len);
-    strn_print_env->cur += len;
-    strn_print_env->remain -= len;
-}
-
-#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ < 9
-// uClibc requires this alias to be defined, or there may be link errors
-// when linkings against it statically.
-// GCC 9 gives a warning about missing attributes so it's excluded until
-// uClibc+GCC9 support is needed.
-int __GI_vsnprintf(char *str, size_t size, const char *fmt, va_list ap) __attribute__((weak, alias("vsnprintf")));
-#endif
-
-int vsnprintf(char *str, size_t size, const char *fmt, va_list ap) {
-    strn_print_env_t strn_print_env = {str, size};
-    mp_print_t print = {&strn_print_env, strn_print_strn};
-    int len = mp_vprintf(&print, fmt, ap);
-    // add terminating null byte
-    if (size > 0) {
-        if (strn_print_env.remain == 0) {
-            strn_print_env.cur[-1] = 0;
-        } else {
-            strn_print_env.cur[0] = 0;
-        }
-    }
-    return len;
-}
-
-int snprintf(char *str, size_t size, const char *fmt, ...) {
-    va_list ap;
-    va_start(ap, fmt);
-    int ret = vsnprintf(str, size, fmt, ap);
-    va_end(ap);
-    return ret;
-}
-
-#endif // MICROPY_USE_INTERNAL_PRINTF