[PATCH v3 12/18] perf auxtrace: intel-pt: Use common snapshot pointer fixup

[James Clark]

Intel PT has its own wrap search but the same pointer fixup logic as the
generic auxtrace_record__default_find_snapshot(). Replace the duplicate
code with auxtrace_record__snapshot_fixup().

No functional changes intended.

Signed-off-by: James Clark <james.clark at linaro.org>
---
 tools/perf/arch/x86/util/intel-pt.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index a533114c0048..ce854209213d 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -1150,26 +1150,7 @@ static int intel_pt_find_snapshot(struct auxtrace_record *itr, int idx,
 		}
 	}
 
-	/*
-	 * In full trace mode 'head' continually increases.  However in snapshot
-	 * mode 'head' is an offset within the buffer.  Here 'old' and 'head'
-	 * are adjusted to match the full trace case which expects that 'old' is
-	 * always less than 'head'.
-	 */
-	if (wrapped) {
-		*old = *head;
-		*head += mm->len;
-	} else {
-		if (mm->mask)
-			*old &= mm->mask;
-		else
-			*old %= mm->len;
-		if (*old > *head)
-			*head += mm->len;
-	}
-
-	pr_debug3("%s: wrap-around %sdetected, adjusted old head %zu adjusted new head %zu\n",
-		  __func__, wrapped ? "" : "not ", (size_t)*old, (size_t)*head);
+	auxtrace_record__snapshot_fixup(mm, wrapped, head, old);
 
 	return 0;
 

-- 
2.43.0