ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/tools/perf/arch/arm/util/unwind-libunwind.c b/marvell/linux/tools/perf/arch/arm/util/unwind-libunwind.c
new file mode 100644
index 0000000..3a55022
--- /dev/null
+++ b/marvell/linux/tools/perf/arch/arm/util/unwind-libunwind.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <libunwind.h>
+#include "perf_regs.h"
+#include "../../util/unwind.h"
+#include "../../util/debug.h"
+
+int libunwind__arch_reg_id(int regnum)
+{
+ switch (regnum) {
+ case UNW_ARM_R0:
+ return PERF_REG_ARM_R0;
+ case UNW_ARM_R1:
+ return PERF_REG_ARM_R1;
+ case UNW_ARM_R2:
+ return PERF_REG_ARM_R2;
+ case UNW_ARM_R3:
+ return PERF_REG_ARM_R3;
+ case UNW_ARM_R4:
+ return PERF_REG_ARM_R4;
+ case UNW_ARM_R5:
+ return PERF_REG_ARM_R5;
+ case UNW_ARM_R6:
+ return PERF_REG_ARM_R6;
+ case UNW_ARM_R7:
+ return PERF_REG_ARM_R7;
+ case UNW_ARM_R8:
+ return PERF_REG_ARM_R8;
+ case UNW_ARM_R9:
+ return PERF_REG_ARM_R9;
+ case UNW_ARM_R10:
+ return PERF_REG_ARM_R10;
+ case UNW_ARM_R11:
+ return PERF_REG_ARM_FP;
+ case UNW_ARM_R12:
+ return PERF_REG_ARM_IP;
+ case UNW_ARM_R13:
+ return PERF_REG_ARM_SP;
+ case UNW_ARM_R14:
+ return PERF_REG_ARM_LR;
+ case UNW_ARM_R15:
+ return PERF_REG_ARM_PC;
+ default:
+ pr_err("unwind: invalid reg id %d\n", regnum);
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}