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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-03 07:27:16 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-03 07:27:16 +0200 |
commit | 23004ec330925e6834c8ddac00e3dd12eb5fb345 (patch) | |
tree | 6bcbf18d8a2429e16f842b8a357f439f4f8d3926 /tools/perf/util/machine.c | |
parent | staging: mt7621-dma: sizeof via pointer dereference (diff) | |
parent | Linux 5.2-rc3 (diff) | |
download | linux-dev-23004ec330925e6834c8ddac00e3dd12eb5fb345.tar.xz linux-dev-23004ec330925e6834c8ddac00e3dd12eb5fb345.zip |
Merge 5.2-rc3 into staging-next
We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/util/machine.c')
-rw-r--r-- | tools/perf/util/machine.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 28a9541c4835..dc7aafe45a2b 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -924,7 +924,8 @@ const char *ref_reloc_sym_names[] = {"_text", "_stext", NULL}; * symbol_name if it's not that important. */ static int machine__get_running_kernel_start(struct machine *machine, - const char **symbol_name, u64 *start) + const char **symbol_name, + u64 *start, u64 *end) { char filename[PATH_MAX]; int i, err = -1; @@ -949,6 +950,11 @@ static int machine__get_running_kernel_start(struct machine *machine, *symbol_name = name; *start = addr; + + err = kallsyms__get_function_start(filename, "_etext", &addr); + if (!err) + *end = addr; + return 0; } @@ -1441,7 +1447,7 @@ int machine__create_kernel_maps(struct machine *machine) struct dso *kernel = machine__get_kernel(machine); const char *name = NULL; struct map *map; - u64 addr = 0; + u64 start = 0, end = ~0ULL; int ret; if (kernel == NULL) @@ -1460,9 +1466,9 @@ int machine__create_kernel_maps(struct machine *machine) "continuing anyway...\n", machine->pid); } - if (!machine__get_running_kernel_start(machine, &name, &addr)) { + if (!machine__get_running_kernel_start(machine, &name, &start, &end)) { if (name && - map__set_kallsyms_ref_reloc_sym(machine->vmlinux_map, name, addr)) { + map__set_kallsyms_ref_reloc_sym(machine->vmlinux_map, name, start)) { machine__destroy_kernel_maps(machine); ret = -1; goto out_put; @@ -1472,16 +1478,19 @@ int machine__create_kernel_maps(struct machine *machine) * we have a real start address now, so re-order the kmaps * assume it's the last in the kmaps */ - machine__update_kernel_mmap(machine, addr, ~0ULL); + machine__update_kernel_mmap(machine, start, end); } if (machine__create_extra_kernel_maps(machine, kernel)) pr_debug("Problems creating extra kernel maps, continuing anyway...\n"); - /* update end address of the kernel map using adjacent module address */ - map = map__next(machine__kernel_map(machine)); - if (map) - machine__set_kernel_mmap(machine, addr, map->start); + if (end == ~0ULL) { + /* update end address of the kernel map using adjacent module address */ + map = map__next(machine__kernel_map(machine)); + if (map) + machine__set_kernel_mmap(machine, start, map->start); + } + out_put: dso__put(kernel); return ret; |