5 files changed, 18 insertions(+), 1 deletions(-)

M port/devcons.c
M power/dat.h
M power/fns.h
M power/io.h
M power/main.c

@@ 89,6 89,7 @@ putstrn(char *str, int n)
 
 	s = splhi();
 	lock(&printq);
+	syslog(str, n);
 	while(n > 0){
 		if(*str == '\n')
 			puts("\r", 1);

@@ 37,6 37,7 @@ typedef struct Seg	Seg;
 typedef struct Stream	Stream;
 typedef struct Ureg	Ureg;
 typedef struct User	User;
+typedef struct Syslog	Syslog;
 
 typedef int Devgen(Chan*, Dirtab*, int, int, Dir*);
 


@@ 689,3 690,15 @@ extern	ulong	initcode[];
 extern	Dev	devtab[];
 extern	char	devchar[];
 extern	FPsave	initfp;
+
+/*
+ *  kernel based system log, passed between crashes
+ */
+#define SYSLOG		((Syslog *)(0x80001B00))
+#define SYSLOGMAGIC	0x12345678
+struct Syslog
+{
+	ulong	magic;
+	char	*next;
+	char	buf[16*1024];
+};

@@ 172,6 172,8 @@ void	streamopen(Chan*, Qinfo*);
 int	streamparse(char*, Block*);
 long	stringread(Chan*, void*, long, char*);
 long	syscall(Ureg*);
+void	sysloginit(void);
+void	syslog(char*, int);
 void	tlbinit(void);
 void	touser(void *);
 void	tsleep(Rendez*, int (*)(void*), void*, int);

@@ 77,4 77,4 @@ struct INTVEC {
 #define IO2MASK		IO2(ushort, 0xFE8000)
 #define	MPBERR0		IO2(ulong, 0xF48000)
 #define	MPBERR1		IO2(ulong, 0xF4C000)
-#define SBEADDR		((ulong *)(UNCACHED|0x1f080000))
+#define SBEADDR		((ulong *)(UNCACHED|0x1F080000))

@@ 57,6 57,7 @@ main(void)
 	io2init();
 	chandevreset();
 	streaminit();
+	sysloginit();
 	pageinit();
 	userinit();
 	launchinit();