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sandbox: add function os_printf()

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Before setting up the devices U-Boot's printf() function cannot be used
for console output. Provide function os_printf() to print to stderr.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt
2022-04-04 22:45:03 +02:00
committed by Simon Glass
parent ebcaafcded
commit 7750ee45a6
2 changed files with 20 additions and 0 deletions
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13
arch/sandbox/cpu/os.c
View File

@@ -12,6 +12,7 @@
#include <getopt.h> #include <getopt.h>
#include <setjmp.h> #include <setjmp.h>
#include <signal.h> #include <signal.h>
#include <stdarg.h>
#include <stdio.h> #include <stdio.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h> #include <stdlib.h>
@@ -54,6 +55,18 @@ ssize_t os_write(int fd, const void *buf, size_t count)
return write(fd, buf, count); return write(fd, buf, count);
} }
int os_printf(const char *fmt, ...)
{
va_list args;
int i;
va_start(args, fmt);
i = vfprintf(stdout, fmt, args);
va_end(args);
return i;
}
off_t os_lseek(int fd, off_t offset, int whence) off_t os_lseek(int fd, off_t offset, int whence)
{ {
if (whence == OS_SEEK_SET) if (whence == OS_SEEK_SET)

7
include/os.h
View File

@@ -16,6 +16,13 @@
struct rtc_time; struct rtc_time;
struct sandbox_state; struct sandbox_state;
/**
* os_printf() - print directly to OS console
*
* @format: format string
*/
int os_printf(const char *format, ...);
/** /**
* Access to the OS read() system call * Access to the OS read() system call
* *