[src/trunk]: src/external/cddl/osnet/dev/fbt/aarch64 dtrace_fbt: Read and wri...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/958b6fbe06bd
branches:  trunk
changeset: 374677:958b6fbe06bd
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Tue May 09 21:29:07 2023 +0000

description:
dtrace_fbt: Read and write instruction words in little-endian.

Step toward making this work on aarch64eb.

diffstat:

 external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c |  16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diffs (59 lines):

diff -r 45090257be1c -r 958b6fbe06bd external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c
--- a/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c     Tue May 09 21:24:56 2023 +0000
+++ b/external/cddl/osnet/dev/fbt/aarch64/fbt_isa.c     Tue May 09 21:29:07 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fbt_isa.c,v 1.7 2021/03/24 04:46:41 simonb Exp $       */
+/*     $NetBSD: fbt_isa.c,v 1.8 2023/05/09 21:29:07 riastradh Exp $    */
 
 /*
  * CDDL HEADER START
@@ -103,7 +103,7 @@ fbt_patch_tracepoint(fbt_probe_t *fbt, f
                return;
        if (!mm_md_direct_mapped_phys(pa, &va))
                return;
-       *(fbt_patchval_t *)va = val;
+       *(fbt_patchval_t *)va = htole32(val);
        cpu_icache_sync_range((vm_offset_t)fbt->fbtp_patchpoint, sizeof(val));
 }
 
@@ -157,7 +157,7 @@ fbt_provide_module_cb(const char *name, 
 
        /* Look for stp (pre-indexed) operation */
        for (; instr < limit; instr++) {
-               if ((*instr & LDP_STP_MASK) == STP_64)
+               if ((le32toh(*instr) & LDP_STP_MASK) == STP_64)
                        break;
        }
 
@@ -181,7 +181,7 @@ fbt_provide_module_cb(const char *name, 
 #ifdef __NetBSD__
        fbt->fbtp_ctl = mod;
 #endif
-       fbt->fbtp_savedval = *instr;
+       fbt->fbtp_savedval = le32toh(*instr);
        fbt->fbtp_patchval = FBT_PATCHVAL;
        fbt->fbtp_symindx = symindx;
 
@@ -195,10 +195,10 @@ fbt_provide_module_cb(const char *name, 
        retfbt = NULL;
 again:
        for (; instr < limit; instr++) {
-               if (*instr == RET_INSTR)
+               if (le32toh(*instr) == RET_INSTR)
                        break;
-               else if ((*instr & B_MASK) == B_INSTR) {
-                       offs = (*instr & B_DATA_MASK);
+               else if ((le32toh(*instr) & B_MASK) == B_INSTR) {
+                       offs = (le32toh(*instr) & B_DATA_MASK);
                        offs *= 4;
                        target = (instr + offs);
 #ifdef __FreeBSD__
@@ -241,7 +241,7 @@ again:
 #ifdef __NetBSD__
        fbt->fbtp_ctl = mod;
 #endif
-       fbt->fbtp_savedval = *instr;
+       fbt->fbtp_savedval = le32toh(*instr);
        fbt->fbtp_patchval = FBT_PATCHVAL;
        fbt->fbtp_symindx = symindx;