forked from Imagelibrary/binutils-gdb
cf32529923
Valgrind catches an out-of-bounds read here: $ gdb ./testsuite/outputs/gdb.cp/method2/method2 (gdb) start [...] Temporary breakpoint 1, main (argc=1, argv=0x7fffffffd958) at src/gdb/testsuite/gdb.cp/method2.cc:26 26 return 0; (gdb) b A::operator ==26907== Invalid read of size 1 ==26907== at 0x75C0AE: cp_find_first_component_aux(char const*, int) (cp-support.c:951) ==26907== by 0x75C084: cp_find_first_component(char const*) (cp-support.c:925) ==26907== by 0x75C3DA: cp_entire_prefix_len(char const*) (cp-support.c:1089) ==26907== by 0x758B16: cp_lookup_symbol_in_namespace(char const*, char const*, block const*, domain_enum_tag, int) (cp-namespace.c:314) ==26907== by 0x75972A: lookup_namespace_scope(language_defn const*, char const*, block const*, domain_enum_tag, char const*, int) (cp-namespace.c:739) ==26907== by 0x7597CB: cp_lookup_symbol_nonlocal(language_defn const*, char const*, block const*, domain_enum_tag) (cp-namespace.c:768) ==26907== by 0x8C1137: lookup_symbol_aux(char const*, block const*, domain_enum_tag, language, field_of_this_result*) (symtab.c:2016) ==26907== by 0x8C098A: lookup_symbol_in_language(char const*, block const*, domain_enum_tag, language, field_of_this_result*) (symtab.c:1824) ==26907== by 0x8C0A04: lookup_symbol(char const*, block const*, domain_enum_tag, field_of_this_result*) (symtab.c:1836) ==26907== by 0x82CBE1: find_label_symbols(linespec_state*, VEC_symbolp*, VEC_symbolp**, char const*) (linespec.c:3390) ==26907== by 0x828FB5: linespec_parse_basic(ls_parser*) (linespec.c:1620) ==26907== by 0x82A78F: parse_linespec(ls_parser*, char const*) (linespec.c:2307) ==26907== Address 0x910f97c is 0 bytes after a block of size 12 alloc'd ==26907== at 0x4C28BF6: malloc (vg_replace_malloc.c:299) ==26907== by 0x74E737: xmalloc (common-utils.c:43) ==26907== by 0x74EAF4: savestring(char const*, unsigned long) (common-utils.c:179) ==26907== by 0x826CEF: copy_token_string(ls_token) (linespec.c:488) ==26907== by 0x828EF6: linespec_parse_basic(ls_parser*) (linespec.c:1599) ==26907== by 0x82A78F: parse_linespec(ls_parser*, char const*) (linespec.c:2307) ==26907== by 0x82AE27: event_location_to_sals(ls_parser*, event_location const*) (linespec.c:2469) ==26907== by 0x82B1CE: decode_line_full(event_location const*, int, program_space*, symtab*, int, linespec_result*, char const*, char const*) (linespec.c:2557) ==26907== by 0x720C8A: parse_breakpoint_sals(event_location const*, linespec_result*) (breakpoint.c:9550) ==26907== by 0x72A2F7: create_sals_from_location_default(event_location const*, linespec_result*, bptype) (breakpoint.c:14484) ==26907== by 0x727F86: bkpt_create_sals_from_location(event_location const*, linespec_result*, bptype) (breakpoint.c:13219) ==26907== by 0x72146D: create_breakpoint(gdbarch*, event_location const*, char*, int, char*, int, int, bptype, int, auto_boolean, breakpoint_ops const*, int, int, int, unsigned int) (breakpoint.c:9759) Tests exercising this will be added further down the series. gdb/ChangeLog: 2017-07-20 Pedro Alves <palves@redhat.com> * cp-support.c (cp_find_first_component_aux): Add missing case for end of string.
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