Add function linux_msg() for regulating output from the linux emulation

code, make the emulator use it.

Rename unsupported_msg() to unimplemented_syscall().  Rename some arguments
for clarity

Fixup grammar.

Requested by: bde

1 files changed, 16 insertions, 4 deletions

diff --git a/sys/compat/linux/linux_sysctl.c b/sys/compat/linux/linux_sysctl.c
index 86a8758..699b5d6 100644
--- a/sys/compat/linux/linux_sysctl.c
+++ b/sys/compat/linux/linux_sysctl.c
@@ -35,10 +35,13 @@
 #include <sys/proc.h>
 #include <sys/sysctl.h>
 #include <sys/systm.h>
+#include <sys/sbuf.h>
 
 #include <machine/../linux/linux.h>
 #include <machine/../linux/linux_proto.h>
 
+#include <compat/linux/linux_util.h>
+
 #define	LINUX_CTL_KERN		1
 #define	LINUX_CTL_VM		2
 #define	LINUX_CTL_NET		3
@@ -78,6 +81,7 @@ int
 linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
 {
 	struct l___sysctl_args la;
+	struct sbuf *sb;
 	l_int *mib;
 	int error, i;
 
@@ -113,10 +117,18 @@ linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
 		break;
 	}
 
-	printf("linux: sysctl: unhandled name=");
-	for (i = 0; i < la.nlen; i++)
-		printf("%c%d", (i) ? ',' : '{', mib[i]);
-	printf("}\n");
+	sb = sbuf_new(NULL, NULL, 20 + la.nlen * 5, SBUF_AUTOEXTEND);
+	if (sb == NULL) {
+		linux_msg(td, "sysctl is not implemented");
+	} else {
+		sbuf_printf(sb, "sysctl ");
+		for (i = 0; i < la.nlen; i++)
+			sbuf_printf(sb, "%c%d", (i) ? ',' : '{', mib[i]);
+		sbuf_printf(sb, "} is not implemented");
+		sbuf_finish(sb);
+		linux_msg(td, "%s", sbuf_data(sb));
+		sbuf_delete(sb);
+	}
 
 	free(mib, M_TEMP);
 	return (ENOTDIR);