On Wed, Jun 08, 2016 at 10:15:35AM +0000, He Kuang wrote: > The remote unwind can supported scenario where we collect on a x86_64 > machine and want to do analysis on a ARM64 or x86-32 machine. Though > this is not tested, after Arnaldo questioned the above issue, I tested > and found a bug. > > In util/unwind-libunwind-local.c, PERF_REG_SP/IP is used, but those > macros are assigned to the host platform, we should redefine them in > the wrapper file, for example in "util/libunwind/x86_32.c". > > After fixing this problem, i686 perf.data can be parsed on aarch64 > machine. > > To Arnaldo, I noticed that this patch > "perf tools: Find vdso supporting cross-platform analysis" > is not on "origin/perf/unwind" branch, this patch was applied, please > check if it was missed, the above test needs this patch. > > Thank you. > > He Kuang (3): > perf unwind: Change macro names of perf register > perf unwind: Fix wrongly used regs for x86_32 unwind > perf unwind: Fix wrongly used regs for aarch64 unwind
for the patchset: Acked-by: Jiri Olsa <jo...@kernel.org> thanks, jirka
