perf script: Add new output field 'dsoff' to print dso offset

This adds a new 'dsoff' field to print dso offset for resolved symbols,
and the offset is appended to dso name.

Default output:

$ perf script
ls 2695501 3011030.487017: 500000 cycles: 152cc73ef4b5 get_common_indices.constprop.0+0x155 (/usr/lib/x86_64-linux-gnu/ld-2.31.so)
ls 2695501 3011030.487018: 500000 cycles: ffffffff99045b3e [unknown] ([unknown])
ls 2695501 3011030.487018: 500000 cycles: ffffffff9968e107 [unknown] ([unknown])
ls 2695501 3011030.487018: 500000 cycles: ffffffffc1f54afb [unknown] ([unknown])
ls 2695501 3011030.487018: 500000 cycles: ffffffff9968382f [unknown] ([unknown])
ls 2695501 3011030.487019: 500000 cycles: ffffffff99e00094 [unknown] ([unknown])
ls 2695501 3011030.487019: 500000 cycles: 152cc718a8d0 __errno_location@plt+0x0 (/usr/lib/x86_64-linux-gnu/libselinux.so.1)

Display 'dsoff' field:

$ perf script -F +dsoff
ls 2695501 3011030.487017: 500000 cycles: 152cc73ef4b5 get_common_indices.constprop.0+0x155 (/usr/lib/x86_64-linux-gnu/ld-2.31.so+0x1c4b5)
ls 2695501 3011030.487018: 500000 cycles: ffffffff99045b3e [unknown] ([unknown])
ls 2695501 3011030.487018: 500000 cycles: ffffffff9968e107 [unknown] ([unknown])
ls 2695501 3011030.487018: 500000 cycles: ffffffffc1f54afb [unknown] ([unknown])
ls 2695501 3011030.487018: 500000 cycles: ffffffff9968382f [unknown] ([unknown])
ls 2695501 3011030.487019: 500000 cycles: ffffffff99e00094 [unknown] ([unknown])
ls 2695501 3011030.487019: 500000 cycles: 152cc718a8d0 __errno_location@plt+0x0 (/usr/lib/x86_64-linux-gnu/libselinux.so.1+0x68d0)
ls 2695501 3011030.487019: 500000 cycles: ffffffff992a6db0 [unknown] ([unknown])

Signed-off-by: Changbin Du <[e-mail]>
Acked-by: Adrian Hunter <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Hui Wang <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/Documentation/perf-script.txt

···
 -F::
 --fields::
         Comma separated list of fields to print. Options are:
-        comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff,
+        comm, tid, pid, time, cpu, event, trace, ip, sym, dso, dsoff, addr, symoff,
         srcline, period, iregs, uregs, brstack, brstacksym, flags, bpf-output,
         brstackinsn, brstackinsnlen, brstackoff, callindent, insn, insnlen, synth,
         phys_addr, metric, misc, srccode, ipc, data_page_size, code_page_size, ins_lat,

tools/perf/builtin-script.c

···
 	PERF_OUTPUT_VCPU            = 1ULL << 38,
 	PERF_OUTPUT_CGROUP          = 1ULL << 39,
 	PERF_OUTPUT_RETIRE_LAT      = 1ULL << 40,
+	PERF_OUTPUT_DSOFF           = 1ULL << 41,
 };
 
 struct perf_script {
···
 	{.str = "ip",    .field = PERF_OUTPUT_IP},
 	{.str = "sym",   .field = PERF_OUTPUT_SYM},
 	{.str = "dso",   .field = PERF_OUTPUT_DSO},
+	{.str = "dsoff", .field = PERF_OUTPUT_DSOFF},
 	{.str = "addr",  .field = PERF_OUTPUT_ADDR},
 	{.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
 	{.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
···
 	if (PRINT_FIELD(DSO))
 		output[type].print_ip_opts |= EVSEL__PRINT_DSO;
 
+	if (PRINT_FIELD(DSOFF))
+		output[type].print_ip_opts |= EVSEL__PRINT_DSOFF;
+
 	if (PRINT_FIELD(SYMOFFSET))
 		output[type].print_ip_opts |= EVSEL__PRINT_SYMOFFSET;
 
···
 
 		if (evsel == NULL)
 			continue;
+
+		/* 'dsoff' implys 'dso' field */
+		if (output[j].fields & PERF_OUTPUT_DSOFF)
+			output[j].fields |= PERF_OUTPUT_DSO;
 
 		set_print_ip_opts(&evsel->core.attr);
 		tod |= output[j].fields & PERF_OUTPUT_TOD;
···
 		}
 
 		printed += fprintf(fp, " 0x%"PRIx64, from);
-		if (PRINT_FIELD(DSO)) {
-			printed += fprintf(fp, "(");
-			printed += map__fprintf_dsoname(alf.map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (PRINT_FIELD(DSO))
+			printed += map__fprintf_dsoname_dsoff(alf.map, PRINT_FIELD(DSOFF), alf.addr, fp);
 
 		printed += fprintf(fp, "/0x%"PRIx64, to);
-		if (PRINT_FIELD(DSO)) {
-			printed += fprintf(fp, "(");
-			printed += map__fprintf_dsoname(alt.map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (PRINT_FIELD(DSO))
+			printed += map__fprintf_dsoname_dsoff(alt.map, PRINT_FIELD(DSOFF), alt.addr, fp);
 
 		printed += print_bstack_flags(fp, entries + i);
 	}
···
 		thread__find_symbol_fb(thread, sample->cpumode, to, &alt);
 
 		printed += symbol__fprintf_symname_offs(alf.sym, &alf, fp);
-		if (PRINT_FIELD(DSO)) {
-			printed += fprintf(fp, "(");
-			printed += map__fprintf_dsoname(alf.map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (PRINT_FIELD(DSO))
+			printed += map__fprintf_dsoname_dsoff(alf.map, PRINT_FIELD(DSOFF), alf.addr, fp);
 		printed += fprintf(fp, "%c", '/');
 		printed += symbol__fprintf_symname_offs(alt.sym, &alt, fp);
-		if (PRINT_FIELD(DSO)) {
-			printed += fprintf(fp, "(");
-			printed += map__fprintf_dsoname(alt.map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (PRINT_FIELD(DSO))
+			printed += map__fprintf_dsoname_dsoff(alt.map, PRINT_FIELD(DSOFF), alt.addr, fp);
 		printed += print_bstack_flags(fp, entries + i);
 	}
 
···
 			to = map__dso_map_ip(alt.map, to);
 
 		printed += fprintf(fp, " 0x%"PRIx64, from);
-		if (PRINT_FIELD(DSO)) {
-			printed += fprintf(fp, "(");
-			printed += map__fprintf_dsoname(alf.map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (PRINT_FIELD(DSO))
+			printed += map__fprintf_dsoname_dsoff(alf.map, PRINT_FIELD(DSOFF), alf.addr, fp);
 		printed += fprintf(fp, "/0x%"PRIx64, to);
-		if (PRINT_FIELD(DSO)) {
-			printed += fprintf(fp, "(");
-			printed += map__fprintf_dsoname(alt.map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (PRINT_FIELD(DSO))
+			printed += map__fprintf_dsoname_dsoff(alt.map, PRINT_FIELD(DSOFF), alt.addr, fp);
 		printed += print_bstack_flags(fp, entries + i);
 	}
 
···
 			printed += symbol__fprintf_symname(al.sym, fp);
 	}
 
-	if (PRINT_FIELD(DSO)) {
-		printed += fprintf(fp, " (");
-		printed += map__fprintf_dsoname(al.map, fp);
-		printed += fprintf(fp, ")");
-	}
+	if (PRINT_FIELD(DSO))
+		printed += map__fprintf_dsoname_dsoff(al.map, PRINT_FIELD(DSOFF), al.addr, fp);
 out:
 	return printed;
 }
···
 		     "comma separated output fields prepend with 'type:'. "
 		     "+field to add and -field to remove."
 		     "Valid types: hw,sw,trace,raw,synth. "
-		     "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
+		     "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,dsoff"
 		     "addr,symoff,srcline,period,iregs,uregs,brstack,"
 		     "brstacksym,flags,data_src,weight,bpf-output,brstackinsn,"
 		     "brstackinsnlen,brstackoff,callindent,insn,insnlen,synth,"

tools/perf/util/evsel_fprintf.c

···
 	int print_ip = print_opts & EVSEL__PRINT_IP;
 	int print_sym = print_opts & EVSEL__PRINT_SYM;
 	int print_dso = print_opts & EVSEL__PRINT_DSO;
+	int print_dsoff = print_opts & EVSEL__PRINT_DSOFF;
 	int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 	int print_oneline = print_opts & EVSEL__PRINT_ONELINE;
 	int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
···
 				}
 			}
 
-			if (print_dso && (!sym || !sym->inlined)) {
-				printed += fprintf(fp, " (");
-				printed += map__fprintf_dsoname(map, fp);
-				printed += fprintf(fp, ")");
-			}
+			if (print_dso && (!sym || !sym->inlined))
+				printed += map__fprintf_dsoname_dsoff(map, print_dsoff, addr, fp);
 
 			if (print_srcline)
 				printed += map__fprintf_srcline(map, addr, "\n  ", fp);
···
 	int print_ip = print_opts & EVSEL__PRINT_IP;
 	int print_sym = print_opts & EVSEL__PRINT_SYM;
 	int print_dso = print_opts & EVSEL__PRINT_DSO;
+	int print_dsoff = print_opts & EVSEL__PRINT_DSOFF;
 	int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 	int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 	int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
···
 			}
 		}
 
-		if (print_dso) {
-			printed += fprintf(fp, " (");
-			printed += map__fprintf_dsoname(al->map, fp);
-			printed += fprintf(fp, ")");
-		}
+		if (print_dso)
+			printed += map__fprintf_dsoname_dsoff(al->map, print_dsoff, al->addr, fp);
 
 		if (print_srcline)
 			printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);

tools/perf/util/evsel_fprintf.h

···
 #define EVSEL__PRINT_UNKNOWN_AS_ADDR	(1<<6)
 #define EVSEL__PRINT_CALLCHAIN_ARROW	(1<<7)
 #define EVSEL__PRINT_SKIP_IGNORED	(1<<8)
+#define EVSEL__PRINT_DSOFF		(1<<9)
 
 struct addr_location;
 struct perf_event_attr;