From c192524e6fe8a4bd18f2549f9556b81ed9e05a86 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 12 Mar 2018 16:24:06 +0100 Subject: [PATCH] perf machine: Fix mmap name setup Leo reported broken -k option behavior. The reason is that we used symbol_conf.vmlinux_name as a source for mmap event name, but in fact it's a vmlinux path. Moving the symbol_conf.vmlinux_name check for both host and guest to the proper place and out of the machine__set_mmap_name function. Reported-by: Leo Yan Signed-off-by: Jiri Olsa Tested-by: Leo Yan Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Fixes: commit ("8c7f1bb37b29 perf machine: Move kernel mmap name into struct machine") Link: http://lkml.kernel.org/r/20180312152406.10141-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 43fbbee409ec..2eca8478e24f 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -50,21 +50,13 @@ static void machine__threads_init(struct machine *machine) static int machine__set_mmap_name(struct machine *machine) { - if (machine__is_host(machine)) { - if (symbol_conf.vmlinux_name) - machine->mmap_name = strdup(symbol_conf.vmlinux_name); - else - machine->mmap_name = strdup("[kernel.kallsyms]"); - } else if (machine__is_default_guest(machine)) { - if (symbol_conf.default_guest_vmlinux_name) - machine->mmap_name = strdup(symbol_conf.default_guest_vmlinux_name); - else - machine->mmap_name = strdup("[guest.kernel.kallsyms]"); - } else { - if (asprintf(&machine->mmap_name, "[guest.kernel.kallsyms.%d]", - machine->pid) < 0) - machine->mmap_name = NULL; - } + if (machine__is_host(machine)) + machine->mmap_name = strdup("[kernel.kallsyms]"); + else if (machine__is_default_guest(machine)) + machine->mmap_name = strdup("[guest.kernel.kallsyms]"); + else if (asprintf(&machine->mmap_name, "[guest.kernel.kallsyms.%d]", + machine->pid) < 0) + machine->mmap_name = NULL; return machine->mmap_name ? 0 : -ENOMEM; } @@ -794,9 +786,15 @@ static struct dso *machine__get_kernel(struct machine *machine) struct dso *kernel; if (machine__is_host(machine)) { + if (symbol_conf.vmlinux_name) + vmlinux_name = symbol_conf.vmlinux_name; + kernel = machine__findnew_kernel(machine, vmlinux_name, "[kernel]", DSO_TYPE_KERNEL); } else { + if (symbol_conf.default_guest_vmlinux_name) + vmlinux_name = symbol_conf.default_guest_vmlinux_name; + kernel = machine__findnew_kernel(machine, vmlinux_name, "[guest.kernel]", DSO_TYPE_GUEST_KERNEL); -- GitLab