perf map: Improve map/unmap parameter names

The u64 values are either absolute or relative, try to hint better in
the parameter names.

Suggested-by: Namhyung Kim <[e-mail]>
Signed-off-by: Ian Rogers <[e-mail]>
Cc: Adrian Hunter <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Cc: Athira Rajeev <[e-mail]>
Cc: Changbin Du <[e-mail]>
Cc: Colin Ian King <[e-mail]>
Cc: Dmitrii Dolgov <[e-mail]>
Cc: German Gomez <[e-mail]>
Cc: Guilherme Amadio <[e-mail]>
Cc: Huacai Chen <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: James Clark <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: K Prateek Nayak <[e-mail]>
Cc: Kajol Jain <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: Leo Yan <[e-mail]>
Cc: Li Dong <[e-mail]>
Cc: Liam Howlett <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Masami Hiramatsu <[e-mail]>
Cc: Miguel Ojeda <[e-mail]>
Cc: Ming Wang <[e-mail]>
Cc: Nick Terrell <[e-mail]>
Cc: Paolo Bonzini <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Ravi Bangoria <[e-mail]>
Cc: Sandipan Das <[e-mail]>
Cc: Sean Christopherson <[e-mail]>
Cc: Steinar H. Gunderson <[e-mail]>
Cc: Vincent Whitchurch <[e-mail]>
Cc: Wenyu Liu <[e-mail]>
Cc: Yang Jihong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/util/map.h

···
 }
 
 /* dso rip -> ip */
-static inline u64 map__dso_unmap_ip(const struct map *map, u64 ip)
+static inline u64 map__dso_unmap_ip(const struct map *map, u64 rip)
 {
-	return ip + map__start(map) - map__pgoff(map);
+	return rip + map__start(map) - map__pgoff(map);
 }
 
-static inline u64 map__map_ip(const struct map *map, u64 ip)
+static inline u64 map__map_ip(const struct map *map, u64 ip_or_rip)
 {
 	if ((RC_CHK_ACCESS(map)->mapping_type) == MAPPING_TYPE__DSO)
-		return map__dso_map_ip(map, ip);
+		return map__dso_map_ip(map, ip_or_rip);
 	else
-		return ip;
+		return ip_or_rip;
 }
 
-static inline u64 map__unmap_ip(const struct map *map, u64 ip)
+static inline u64 map__unmap_ip(const struct map *map, u64 ip_or_rip)
 {
 	if ((RC_CHK_ACCESS(map)->mapping_type) == MAPPING_TYPE__DSO)
-		return map__dso_unmap_ip(map, ip);
+		return map__dso_unmap_ip(map, ip_or_rip);
 	else
-		return ip;
+		return ip_or_rip;
 }
 
 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */