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[libc][syscalls]将在libc初始化之前调用printf的行为下调为警告级别

This commit is contained in:
Meco Man 2021-09-27 07:29:50 -04:00
parent 37d4abb822
commit 0a799653df
4 changed files with 12 additions and 12 deletions
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8
components/libc/compilers/armlibc/syscalls.c
View File

@ -152,8 +152,8 @@ int _sys_read(FILEHANDLE fh, unsigned char *buf, unsigned len, int mode)
#ifdef RT_USING_POSIX #ifdef RT_USING_POSIX
if (libc_stdio_get_console() < 0) if (libc_stdio_get_console() < 0)
{ {
LOG_E("invoke standard output before initializing libc"); LOG_W("Do not invoke standard output before initializing libc");
return -1; return 0;
} }
size = read(STDIN_FILENO, buf, len); size = read(STDIN_FILENO, buf, len);
return len - size; return len - size;
@ -197,8 +197,8 @@ int _sys_write(FILEHANDLE fh, const unsigned char *buf, unsigned len, int mode)
#ifdef RT_USING_POSIX #ifdef RT_USING_POSIX
if (libc_stdio_get_console() < 0) if (libc_stdio_get_console() < 0)
{ {
LOG_E("invoke standard input before initializing libc"); LOG_W("Do not invoke standard input before initializing libc");
return -1; return 0;
} }
size = write(STDOUT_FILENO, buf, len); size = write(STDOUT_FILENO, buf, len);
return len - size; return len - size;

4
components/libc/compilers/dlib/syscall_read.c
View File

@ -31,8 +31,8 @@ size_t __read(int handle, unsigned char *buf, size_t len)
#ifdef RT_USING_POSIX #ifdef RT_USING_POSIX
if (libc_stdio_get_console() < 0) if (libc_stdio_get_console() < 0)
{ {
LOG_E("invoke standard input before initializing libc"); LOG_W("Do not invoke standard input before initializing libc");
return _LLIO_ERROR; return 0;
} }
return read(STDIN_FILENO, buf, len); return read(STDIN_FILENO, buf, len);
#else #else

4
components/libc/compilers/dlib/syscall_write.c
View File

@ -36,8 +36,8 @@ size_t __write(int handle, const unsigned char *buf, size_t len)
#ifdef RT_USING_POSIX #ifdef RT_USING_POSIX
if (libc_stdio_get_console() < 0) if (libc_stdio_get_console() < 0)
{ {
LOG_E("invoke standard output before initializing libc"); LOG_W("Do not invoke standard output before initializing libc");
return _LLIO_ERROR; return 0;
} }
return write(STDOUT_FILENO, (void*)buf, len); return write(STDOUT_FILENO, (void*)buf, len);
#else #else

8
components/libc/compilers/newlib/syscalls.c
View File

@ -227,8 +227,8 @@ _ssize_t _read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
_ssize_t rc; _ssize_t rc;
if (libc_stdio_get_console() < 0 && fd == STDIN_FILENO) if (libc_stdio_get_console() < 0 && fd == STDIN_FILENO)
{ {
LOG_E("invoke standard input before initializing libc"); LOG_W("Do not invoke standard input before initializing libc");
return -1; return 0;
} }
rc = read(fd, buf, nbytes); rc = read(fd, buf, nbytes);
return rc; return rc;
@ -303,8 +303,8 @@ _ssize_t _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
_ssize_t rc; _ssize_t rc;
if (libc_stdio_get_console() < 0 && fd == STDOUT_FILENO) if (libc_stdio_get_console() < 0 && fd == STDOUT_FILENO)
{ {
LOG_E("invoke standard output before initializing libc"); LOG_W("Do not invoke standard output before initializing libc");
return -1; return 0;
} }
rc = write(fd, buf, nbytes); rc = write(fd, buf, nbytes);
return rc; return rc;