The ref_reloc_sym is always needed for the kernel map in order to check for relocation. Consequently set it up when the kernel map is created. Otherwise it was only beging set up by 'perf record'.
Signed-off-by: Adrian Hunter <[email protected]> --- tools/perf/util/machine.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 290c2e6..58a4e92 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -835,6 +835,20 @@ static int machine__create_modules(struct machine *machine) int machine__create_kernel_maps(struct machine *machine) { struct dso *kernel = machine__get_kernel(machine); + char filename[PATH_MAX]; + const char *name; + u64 addr; + + machine__get_kallsyms_filename(machine, filename, PATH_MAX); + + name = "_text"; + addr = kallsyms__get_function_start(filename, name); + if (!addr) { + name = "_stext"; + addr = kallsyms__get_function_start("/proc/kallsyms", name); + if (!addr) + return -1; + } if (kernel == NULL || __machine__create_kernel_maps(machine, kernel) < 0) @@ -853,6 +867,13 @@ int machine__create_kernel_maps(struct machine *machine) * Now that we have all the maps created, just set the ->end of them: */ map_groups__fixup_end(&machine->kmaps); + + if (maps__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps, name, + addr)) { + machine__destroy_kernel_maps(machine); + return -1; + } + return 0; } -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
