git: 70c067062217 - main - dtrace/arm64: Simplify dtrace_getarg() slightly

[Mark Johnston]

The branch main has been updated by markj:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=70c067062217a5295ed321427b91cfd857c18b77

commit 70c067062217a5295ed321427b91cfd857c18b77
Author:     Mark Johnston <ma...@freebsd.org>
AuthorDate: 2025-01-29 01:05:03 +0000
Commit:     Mark Johnston <ma...@freebsd.org>
CommitDate: 2025-01-29 01:05:03 +0000

    dtrace/arm64: Simplify dtrace_getarg() slightly
    
    The use of memcpy here is redundant, and also incorrect since memcpy()
    might be instrumented by fbt or kinst.  dtrace_bcopy() exists, but we
    don't need it.
    
    MFC after:      2 weeks
    Sponsored by:   Innovate UK
---
 sys/cddl/dev/dtrace/aarch64/dtrace_isa.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c 
b/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c
index ff0e068006bd..3e36004c6f0d 100644
--- a/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c
+++ b/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c
@@ -256,7 +256,6 @@ dtrace_getarg(int arg, int aframes __unused)
                return (tf->tf_x[arg]);
        } else {
                uintptr_t p;
-               uint64_t val;
 
                p = (tf->tf_sp + (arg - 8) * sizeof(uint64_t));
                if ((p & 7) != 0) {
@@ -269,8 +268,7 @@ dtrace_getarg(int arg, int aframes __unused)
                        cpu_core[curcpu].cpuc_dtrace_illval = p;
                        return (0);
                }
-               memcpy(&val, (void *)p, sizeof(uint64_t));
-               return (val);
+               return (p);
        }
 }