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Date: Sun, 19 Mar 2023 20:38:02 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Darren Hart <dvhart@...radead.org>,
Davidlohr Bueso <dave@...olabs.net>,
"André Almeida" <andrealmeid@...labora.com>,
James Clark <james.clark@....com>,
John Garry <john.g.garry@...cle.com>,
Riccardo Mancini <rickyman7@...il.com>,
Yury Norov <yury.norov@...il.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Leo Yan <leo.yan@...aro.org>, Andi Kleen <ak@...ux.intel.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Madhavan Srinivasan <maddy@...ux.ibm.com>,
Shunsuke Nakamura <nakamura.shun@...itsu.com>,
Song Liu <song@...nel.org>,
Masami Hiramatsu <mhiramat@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>,
Miaoqian Lin <linmq006@...il.com>,
Stephen Brennan <stephen.s.brennan@...cle.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>,
German Gomez <german.gomez@....com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
Eric Dumazet <edumazet@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>, Hao Luo <haoluo@...gle.com>
Cc: Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: [PATCH v4 14/22] perf map: Add accessors for pgoff and reloc
Later changes will add reference count checking for struct map. Add
accessors so that the reference count check is only necessary in one
place.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/arch/x86/util/event.c | 2 +-
tools/perf/builtin-report.c | 2 +-
tools/perf/tests/vmlinux-kallsyms.c | 4 ++--
tools/perf/util/machine.c | 4 ++--
tools/perf/util/map.c | 14 +++++++-------
tools/perf/util/map.h | 10 ++++++++++
tools/perf/util/probe-event.c | 8 ++++----
tools/perf/util/symbol.c | 6 +++---
tools/perf/util/unwind-libdw.c | 6 +++---
9 files changed, 33 insertions(+), 23 deletions(-)
diff --git a/tools/perf/arch/x86/util/event.c b/tools/perf/arch/x86/util/event.c
index 3b2475707756..5741ffe47312 100644
--- a/tools/perf/arch/x86/util/event.c
+++ b/tools/perf/arch/x86/util/event.c
@@ -61,7 +61,7 @@ int perf_event__synthesize_extra_kmaps(struct perf_tool *tool,
event->mmap.start = map__start(map);
event->mmap.len = map__size(map);
- event->mmap.pgoff = map->pgoff;
+ event->mmap.pgoff = map__pgoff(map);
event->mmap.pid = machine->pid;
strlcpy(event->mmap.filename, kmap->name, PATH_MAX);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 8650d9503b77..c7e4160f64ad 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -853,7 +853,7 @@ static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
prot & PROT_WRITE ? 'w' : '-',
prot & PROT_EXEC ? 'x' : '-',
map__flags(map) ? 's' : 'p',
- map->pgoff,
+ map__pgoff(map),
dso->id.ino, dso->name);
}
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index 7db102868bc2..af511233c764 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -335,10 +335,10 @@ static int test__vmlinux_matches_kallsyms(struct test_suite *test __maybe_unused
}
pr_info("WARN: %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
- map__start(map), map__end(map), map->pgoff, dso->name);
+ map__start(map), map__end(map), map__pgoff(map), dso->name);
if (mem_end != map__end(pair))
pr_info(":\nWARN: *%" PRIx64 "-%" PRIx64 " %" PRIx64,
- map__start(pair), map__end(pair), pair->pgoff);
+ map__start(pair), map__end(pair), map__pgoff(pair));
pr_info(" %s\n", dso->name);
pair->priv = 1;
}
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index afb77bd161e2..916d98885128 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1276,9 +1276,9 @@ int machine__map_x86_64_entry_trampolines(struct machine *machine,
if (!kmap || !is_entry_trampoline(kmap->name))
continue;
- dest_map = maps__find(kmaps, map->pgoff);
+ dest_map = maps__find(kmaps, map__pgoff(map));
if (dest_map != map)
- map->pgoff = map__map_ip(dest_map, map->pgoff);
+ map->pgoff = map__map_ip(dest_map, map__pgoff(map));
found = true;
}
if (found || machine->trampolines_mapped)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 816bffbbf344..1fe367e2cf19 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -421,7 +421,7 @@ size_t map__fprintf(struct map *map, FILE *fp)
const struct dso *dso = map__dso(map);
return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s\n",
- map__start(map), map__end(map), map->pgoff, dso->name);
+ map__start(map), map__end(map), map__pgoff(map), dso->name);
}
size_t map__fprintf_dsoname(struct map *map, FILE *fp)
@@ -510,7 +510,7 @@ u64 map__rip_2objdump(struct map *map, u64 rip)
return rip;
if (dso->rel)
- return rip - map->pgoff;
+ return rip - map__pgoff(map);
/*
* kernel modules also have DSO_TYPE_USER in dso->kernel,
@@ -519,7 +519,7 @@ u64 map__rip_2objdump(struct map *map, u64 rip)
if (dso->kernel == DSO_SPACE__USER)
return rip + dso->text_offset;
- return map__unmap_ip(map, rip) - map->reloc;
+ return map__unmap_ip(map, rip) - map__reloc(map);
}
/**
@@ -542,7 +542,7 @@ u64 map__objdump_2mem(struct map *map, u64 ip)
return map__unmap_ip(map, ip);
if (dso->rel)
- return map__unmap_ip(map, ip + map->pgoff);
+ return map__unmap_ip(map, ip + map__pgoff(map));
/*
* kernel modules also have DSO_TYPE_USER in dso->kernel,
@@ -551,7 +551,7 @@ u64 map__objdump_2mem(struct map *map, u64 ip)
if (dso->kernel == DSO_SPACE__USER)
return map__unmap_ip(map, ip - dso->text_offset);
- return ip + map->reloc;
+ return ip + map__reloc(map);
}
bool map__contains_symbol(const struct map *map, const struct symbol *sym)
@@ -592,12 +592,12 @@ struct maps *map__kmaps(struct map *map)
u64 map__dso_map_ip(const struct map *map, u64 ip)
{
- return ip - map__start(map) + map->pgoff;
+ return ip - map__start(map) + map__pgoff(map);
}
u64 map__dso_unmap_ip(const struct map *map, u64 ip)
{
- return ip + map__start(map) - map->pgoff;
+ return ip + map__start(map) - map__pgoff(map);
}
u64 identity__map_ip(const struct map *map __maybe_unused, u64 ip)
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index fd440c9c279e..102485699aa8 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -72,6 +72,16 @@ static inline u64 map__end(const struct map *map)
return map->end;
}
+static inline u64 map__pgoff(const struct map *map)
+{
+ return map->pgoff;
+}
+
+static inline u64 map__reloc(const struct map *map)
+{
+ return map->reloc;
+}
+
static inline u32 map__flags(const struct map *map)
{
return map->flags;
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index bb44a3798df8..6e2110d605fb 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -135,14 +135,14 @@ static int kernel_get_symbol_address_by_name(const char *name, u64 *addr,
/* ref_reloc_sym is just a label. Need a special fix*/
reloc_sym = kernel_get_ref_reloc_sym(&map);
if (reloc_sym && strcmp(name, reloc_sym->name) == 0)
- *addr = (!map->reloc || reloc) ? reloc_sym->addr :
+ *addr = (!map__reloc(map) || reloc) ? reloc_sym->addr :
reloc_sym->unrelocated_addr;
else {
sym = machine__find_kernel_symbol_by_name(host_machine, name, &map);
if (!sym)
return -ENOENT;
*addr = map__unmap_ip(map, sym->start) -
- ((reloc) ? 0 : map->reloc) -
+ ((reloc) ? 0 : map__reloc(map)) -
((reladdr) ? map__start(map) : 0);
}
return 0;
@@ -400,7 +400,7 @@ static int find_alternative_probe_point(struct debuginfo *dinfo,
"Consider identifying the final function used at run time and set the probe directly on that.\n",
pp->function);
} else
- address = map__unmap_ip(map, sym->start) - map->reloc;
+ address = map__unmap_ip(map, sym->start) - map__reloc(map);
break;
}
if (!address) {
@@ -866,7 +866,7 @@ post_process_kernel_probe_trace_events(struct probe_trace_event *tevs,
free(tevs[i].point.symbol);
tevs[i].point.symbol = tmp;
tevs[i].point.offset = tevs[i].point.address -
- (map->reloc ? reloc_sym->unrelocated_addr :
+ (map__reloc(map) ? reloc_sym->unrelocated_addr :
reloc_sym->addr);
}
return skipped;
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index b73c4bf0137e..0431c328f4d6 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -805,11 +805,11 @@ static int maps__split_kallsyms_for_kcore(struct maps *kmaps, struct dso *dso)
continue;
}
curr_map_dso = map__dso(curr_map);
- pos->start -= map__start(curr_map) - curr_map->pgoff;
+ pos->start -= map__start(curr_map) - map__pgoff(curr_map);
if (pos->end > map__end(curr_map))
pos->end = map__end(curr_map);
if (pos->end)
- pos->end -= map__start(curr_map) - curr_map->pgoff;
+ pos->end -= map__start(curr_map) - map__pgoff(curr_map);
symbols__insert(&curr_map_dso->symbols, pos);
++count;
}
@@ -1455,7 +1455,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map,
if (new_node->map == replacement_map) {
map->start = map__start(new_node->map);
map->end = map__end(new_node->map);
- map->pgoff = new_node->map->pgoff;
+ map->pgoff = map__pgoff(new_node->map);
map->map_ip = new_node->map->map_ip;
map->unmap_ip = new_node->map->unmap_ip;
/* Ensure maps are correctly ordered */
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index 538320e4260c..9565f9906e5d 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -62,19 +62,19 @@ static int __report_module(struct addr_location *al, u64 ip,
Dwarf_Addr s;
dwfl_module_info(mod, NULL, &s, NULL, NULL, NULL, NULL, NULL);
- if (s != map__start(al->map) - al->map->pgoff)
+ if (s != map__start(al->map) - map__pgoff(al->map))
mod = 0;
}
if (!mod)
mod = dwfl_report_elf(ui->dwfl, dso->short_name, dso->long_name, -1,
- map__start(al->map) - al->map->pgoff, false);
+ map__start(al->map) - map__pgoff(al->map), false);
if (!mod) {
char filename[PATH_MAX];
if (dso__build_id_filename(dso, filename, sizeof(filename), false))
mod = dwfl_report_elf(ui->dwfl, dso->short_name, filename, -1,
- map__start(al->map) - al->map->pgoff, false);
+ map__start(al->map) - map__pgoff(al->map), false);
}
if (mod) {
--
2.40.0.rc1.284.g88254d51c5-goog
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