On Mon, Feb 03, 2014 at 07:17:07PM +0100, Jean Pihet wrote:
This patch hooks in the perf_regs and libunwind code for ARM64. The tools/perf/arch/arm64 is created; it contains the arch specific code for DWARF unwinding.
Signed-off-by: Jean Pihet jean.pihet@linaro.org Acked-by: Will Deacon will.deacon@arm.com
SNIP
- */
+const char *get_arch_regstr(unsigned int n) +{
- const struct pt_regs_dwarfnum *roff;
- for (roff = regdwarfnum_table; roff->name != NULL; roff++)
if (roff->dwarfnum == n)return roff->name;- return NULL;
+} diff --git a/tools/perf/arch/arm64/util/unwind.c b/tools/perf/arch/arm64/util/unwind.c new file mode 100644 index 0000000..8d37a4c --- /dev/null +++ b/tools/perf/arch/arm64/util/unwind.c @@ -0,0 +1,82 @@
+#include <errno.h> +#include <libunwind.h> +#include "perf_regs.h" +#include "../../util/unwind.h"
+int unwind__arch_reg_id(int regnum)
I think this ^^^ wouldn't compile over acme/perf/core, bacause of the recent code changes for the libdw unwind:
1d86598 perf callchain: Rename unwind__arch_reg_id into libunwind__arch_reg_id
jirka