Module Name: src
Committed By: riastradh
Date: Wed Feb 12 01:09:27 UTC 2020
Modified Files:
src/external/cddl/osnet/dev/fbt/aarch64: fbt_isa.c
Log Message:
Use db_write_bytes to overwrite kernel text.
To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 src/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c
diff -u src/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c:1.1 src/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c:1.2
--- src/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c:1.1 Tue Dec 3 22:10:56 2019
+++ src/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c Wed Feb 12 01:09:27 2020
@@ -36,6 +36,9 @@
#include <sys/cpu.h>
#include <sys/module.h>
#include <sys/kmem.h>
+
+#include <ddb/ddb.h>
+
#include <machine/cpufunc.h>
#include <sys/dtrace.h>
@@ -78,8 +81,9 @@ void
fbt_patch_tracepoint(fbt_probe_t *fbt, fbt_patchval_t val)
{
- *fbt->fbtp_patchpoint = val;
- cpu_icache_sync_range((vm_offset_t)fbt->fbtp_patchpoint, 4);
+ db_write_bytes((db_addr_t)fbt->fbtp_patchpoint, sizeof(val),
+ (const void *)&val);
+ cpu_icache_sync_range((vm_offset_t)fbt->fbtp_patchpoint, sizeof(val));
}
#if defined(__FreeBSD__)
