Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux.git] / tools / perf / arch / arm / util / unwind-libunwind.c

diff --git a/tools/perf/arch/arm/util/unwind-libunwind.c b/tools/perf/arch/arm/util/unwind-libunwind.c
new file mode 100644 (file)
index 0000000..729ed69
--- /dev/null
+++ b/tools/perf/arch/arm/util/unwind-libunwind.c
@@ -0,0 +1,48 @@
+
+#include <errno.h>
+#include <libunwind.h>
+#include "perf_regs.h"
+#include "../../util/unwind.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;
+}