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Merge branch 'feat/refactor_stdio_vfs_v6.1' into 'release/v6.1'

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feat(storage/stdio): refactor stdio vfs (v6.1)

See merge request espressif/esp-idf!48957
This commit is contained in:
Jiang Jiang Jian
2026-07-03 17:47:31 +08:00
parent e3feb73053 68b34d9883
commit b7193c70e1
8 changed files with 420 additions and 108 deletions
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components/esp_libc/src/picolibc/picolibc_init.c
+15 -9
View File
@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -138,32 +138,38 @@ void esp_reent_cleanup(void)
* Initialize stdin, stdout, and stderr using static memory allocation.
* Creating them with fopen() would call malloc() internally.
*/
static char write_buf[BUFSIZ];
static char read_buf[BUFSIZ];
static char in_buf[BUFSIZ];
static char out_buf[BUFSIZ];
static char err_buf[BUFSIZ];
static struct __file_bufio __stdin = FDEV_SETUP_BUFIO(0, read_buf, BUFSIZ, read, write, lseek, close, __SRD, 0);
static struct __file_bufio __stdout = FDEV_SETUP_BUFIO(1, write_buf, BUFSIZ, read, write, lseek, close, __SWR, __BLBF);
static struct __file_bufio __stdin = FDEV_SETUP_BUFIO(0, in_buf, BUFSIZ, read, write, lseek, close, __SRD, 0);
static struct __file_bufio __stdout = FDEV_SETUP_BUFIO(1, out_buf, BUFSIZ, read, write, lseek, close, __SWR, __BLBF);
static struct __file_bufio __stderr = FDEV_SETUP_BUFIO(2, err_buf, BUFSIZ, read, write, lseek, close, __SWR, __BLBF);
FILE *stdin = &__stdin.xfile.cfile.file;
FILE *stdout = &__stdout.xfile.cfile.file;
FILE *stderr = &__stdout.xfile.cfile.file;
FILE *stderr = &__stderr.xfile.cfile.file;
#if CONFIG_LIBC_PICOLIBC_NEWLIB_COMPATIBILITY
__thread FILE* tls_stdin = &__stdin.xfile.cfile.file;
__thread FILE* tls_stdout = &__stdout.xfile.cfile.file;
__thread FILE* tls_stderr = &__stdout.xfile.cfile.file;
__thread FILE* tls_stderr = &__stderr.xfile.cfile.file;
#endif
#if CONFIG_VFS_SUPPORT_IO
void esp_libc_init_global_stdio(const char *stdio_dev)
{
int stdin_fd = open(stdio_dev, O_RDONLY);
assert(stdin_fd > 0);
assert(stdin_fd >= 0); // Should be 0
__stdin.ptr = (void *)(intptr_t)(stdin_fd);
int stdout_fd = open(stdio_dev, O_WRONLY);
assert(stdout_fd > 0);
assert(stdout_fd >= 0); // Should be 1
__stdout.ptr = (void *)(intptr_t)(stdout_fd);
int stderr_fd = open(stdio_dev, O_WRONLY);
assert(stderr_fd >= 0); // Should be 2
__stderr.ptr = (void *)(intptr_t)(stderr_fd);
}
#else /* CONFIG_VFS_SUPPORT_IO */
void esp_libc_init_global_stdio(void)