diff options
| -rw-r--r-- | sys/cddl/dev/dtrace/amd64/dtrace_isa.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/sys/cddl/dev/dtrace/amd64/dtrace_isa.c b/sys/cddl/dev/dtrace/amd64/dtrace_isa.c index 3d3c43c..3bb7a4c 100644 --- a/sys/cddl/dev/dtrace/amd64/dtrace_isa.c +++ b/sys/cddl/dev/dtrace/amd64/dtrace_isa.c @@ -349,7 +349,8 @@ dtrace_getarg(int arg, int aframes) for (i = 1; i <= aframes; i++) { fp = fp->f_frame; - if (fp->f_retaddr == (long)dtrace_invop_callsite) { + if (P2ROUNDUP(fp->f_retaddr, 16) == + (long)dtrace_invop_callsite) { /* * In the case of amd64, we will use the pointer to the * regs structure that was pushed when we took the @@ -363,33 +364,33 @@ dtrace_getarg(int arg, int aframes) * we're seeking is passed in regsiters, we can just * load it directly. */ - struct reg *rp = (struct reg *)((uintptr_t)&fp[1] + - sizeof (uintptr_t)); + struct trapframe *tf = + (struct trapframe *)((uintptr_t)&fp[1]); if (arg <= inreg) { switch (arg) { case 0: - stack = (uintptr_t *)&rp->r_rdi; + stack = (uintptr_t *)&tf->tf_rdi; break; case 1: - stack = (uintptr_t *)&rp->r_rsi; + stack = (uintptr_t *)&tf->tf_rsi; break; case 2: - stack = (uintptr_t *)&rp->r_rdx; + stack = (uintptr_t *)&tf->tf_rdx; break; case 3: - stack = (uintptr_t *)&rp->r_rcx; + stack = (uintptr_t *)&tf->tf_rcx; break; case 4: - stack = (uintptr_t *)&rp->r_r8; + stack = (uintptr_t *)&tf->tf_r8; break; case 5: - stack = (uintptr_t *)&rp->r_r9; + stack = (uintptr_t *)&tf->tf_r9; break; } arg = 0; } else { - stack = (uintptr_t *)(rp->r_rsp); + stack = (uintptr_t *)(tf->tf_rsp); arg -= inreg; } goto load; |
