From 1d5077bdd9a10c4297cded139989bb9ee2998a6c Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 14 Oct 2013 13:43:44 +0300 Subject: [PATCH] perf annotate: Another fix for annotate_browser__callq() The target address is provided by objdump and is not necessary a memory address. Add a helper to get the correct address. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1381747424-3557-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/annotate.c | 7 +++++-- tools/perf/util/map.c | 31 ++++++++++++++++++++++++++++++- tools/perf/util/map.h | 3 +++ 3 files changed, 38 insertions(+), 3 deletions(-) diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 57d3a8659fc0..f0697a3aede0 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -445,14 +445,17 @@ static bool annotate_browser__callq(struct annotate_browser *browser, struct annotation *notes; struct addr_map_symbol target = { .map = ms->map, - .addr = dl->ops.target.addr, + .addr = map__objdump_2mem(ms->map, dl->ops.target.addr), }; char title[SYM_TITLE_MAX_SIZE]; if (!ins__is_call(dl->ins)) return false; - if (map_groups__find_ams(&target, NULL)) { + if (map_groups__find_ams(&target, NULL) || + map__rip_2objdump(target.map, target.map->map_ip(target.map, + target.addr)) != + dl->ops.target.addr) { ui_helpline__puts("The called function was not found."); return true; } diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 9dea404de3fa..ef5bc913ca7a 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -252,10 +252,16 @@ size_t map__fprintf_dsoname(struct map *map, FILE *fp) return fprintf(fp, "%s", dsoname); } -/* +/** + * map__rip_2objdump - convert symbol start address to objdump address. + * @map: memory map + * @rip: symbol start address + * * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN. * map->dso->adjust_symbols==1 for ET_EXEC-like cases except ET_REL which is * relative to section start. + * + * Return: Address suitable for passing to "objdump --start-address=" */ u64 map__rip_2objdump(struct map *map, u64 rip) { @@ -268,6 +274,29 @@ u64 map__rip_2objdump(struct map *map, u64 rip) return map->unmap_ip(map, rip); } +/** + * map__objdump_2mem - convert objdump address to a memory address. + * @map: memory map + * @ip: objdump address + * + * Closely related to map__rip_2objdump(), this function takes an address from + * objdump and converts it to a memory address. Note this assumes that @map + * contains the address. To be sure the result is valid, check it forwards + * e.g. map__rip_2objdump(map->map_ip(map, map__objdump_2mem(map, ip))) == ip + * + * Return: Memory address. + */ +u64 map__objdump_2mem(struct map *map, u64 ip) +{ + if (!map->dso->adjust_symbols) + return map->unmap_ip(map, ip); + + if (map->dso->rel) + return map->unmap_ip(map, ip + map->pgoff); + + return ip; +} + void map_groups__init(struct map_groups *mg) { int i; diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 0359b4a808f0..e4e259c3ba16 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -84,6 +84,9 @@ static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip) /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */ u64 map__rip_2objdump(struct map *map, u64 rip); +/* objdump address -> memory address */ +u64 map__objdump_2mem(struct map *map, u64 ip); + struct symbol; typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); -- 2.39.5