[PATCH 1/1 perf-tools-next] perf disasm: Return a proper error when not determining the file type

[Arnaldo Carvalho de Melo]

Before:

  ⬢ [acme@toolbox a]$ perf annotate --stdio2 -i acme-perf-injected.data 'java.lang.String com.fasterxml.jackson.core.sym.CharsToNameCanonicalizer.findSymbol(char[], int, int, int)'
  Error:
  Couldn't annotate java.lang.String com.fasterxml.jackson.core.sym.CharsToNameCanonicalizer.findSymbol(char[], int, int, int):
  Internal error: Invalid -1 error code
  ⬢ [acme@toolbox a]$

After:

  ⬢ [acme@toolbox a]$ perf annotate --stdio2 -i acme-perf-injected.data 'java.lang.String com.fasterxml.jackson.core.sym.CharsToNameCanonicalizer.findSymbol(char[], int, int, int)'
  Error:
  Couldn't annotate java.lang.String com.fasterxml.jackson.core.sym.CharsToNameCanonicalizer.findSymbol(char[], int, int, int):
  Couldn't determine the file /tmp/perf-3308868.map type.
  ⬢ [acme@toolbox a]$

Reported-by: Francesco Nigro <fnigro@xxxxxxxxxx>
Reported-by: Ilan Green <igreen@xxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: James Clark <james.clark@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Yonatan Goldschmidt <yonatan.goldschmidt@xxxxxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/annotate.h | 1 +
 tools/perf/util/disasm.c   | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 194a05cbc506e4da..c6a59aaefdb8b3a1 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -441,6 +441,7 @@ enum symbol_disassemble_errno {
 	SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP,
 	SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE,
 	SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF,
+	SYMBOL_ANNOTATE_ERRNO__COULDNT_DETERMINE_FILE_TYPE,
 
 	__SYMBOL_ANNOTATE_ERRNO__END,
 };
diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
index 41a2b08670dc5b0e..b7de4d9fd0045d71 100644
--- a/tools/perf/util/disasm.c
+++ b/tools/perf/util/disasm.c
@@ -1245,6 +1245,9 @@ int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, s
 		scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
 			  dso__long_name(dso));
 		break;
+	case SYMBOL_ANNOTATE_ERRNO__COULDNT_DETERMINE_FILE_TYPE:
+		scnprintf(buf, buflen, "Couldn't determine the file %s type.", dso__long_name(dso));
+		break;
 	default:
 		scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
 		break;
@@ -2289,7 +2292,7 @@ int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
 	} else if (dso__binary_type(dso) == DSO_BINARY_TYPE__BPF_IMAGE) {
 		return symbol__disassemble_bpf_image(sym, args);
 	} else if (dso__binary_type(dso) == DSO_BINARY_TYPE__NOT_FOUND) {
-		return -1;
+		return SYMBOL_ANNOTATE_ERRNO__COULDNT_DETERMINE_FILE_TYPE;
 	} else if (dso__is_kcore(dso)) {
 		kce.addr = map__rip_2objdump(map, sym->start);
 		kce.kcore_filename = symfs_filename;
-- 
2.47.0