@@ -12,6 +12,8 @@
#include "s390-ccw.h"
#include "sclp.h"
+long write(int fd, const void *buf, size_t len);
+
static char _sccb[PAGE_SIZE] __attribute__((__aligned__(4096)));
const unsigned char ebc2asc[256] =
@@ -71,11 +73,14 @@ static int _strlen(const char *str)
return i;
}
-void sclp_print(const char *str)
+long write(int fd, const void *str, size_t len)
{
- int len = _strlen(str);
WriteEventData *sccb = (void *)_sccb;
+ if (fd != 1 && fd != 2) {
+ return -EIO;
+ }
+
sccb->h.length = sizeof(WriteEventData) + len;
sccb->h.function_code = SCLP_FC_NORMAL_WRITE;
sccb->ebh.length = sizeof(EventBufferHeader) + len;
@@ -84,6 +89,13 @@ void sclp_print(const char *str)
memcpy(sccb->data, str, len);
sclp_service_call(SCLP_CMD_WRITE_EVENT_DATA, sccb);
+
+ return len;
+}
+
+void sclp_print(const char *str)
+{
+ write(1, str, _strlen(str));
}
void sclp_get_loadparm_ascii(char *loadparm)
The stdio functions from the SLOF libc need a write() function for printing text to stdout/stderr. Let's implement this function by refactoring the code from sclp_print(). Signed-off-by: Thomas Huth <thuth@redhat.com> --- pc-bios/s390-ccw/sclp.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)