From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8966 invoked by alias); 6 Mar 2014 08:30:39 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 8921 invoked by uid 48); 6 Mar 2014 08:30:36 -0000 From: "trippels at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug preprocessor/60436] [4.8/4.9 Regression] C preprocessor segfaults on assembly file Date: Thu, 06 Mar 2014 08:30:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: preprocessor X-Bugzilla-Version: 4.8.2 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: trippels at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.4 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cf_reconfirmed_on cc cf_known_to_work target_milestone short_desc everconfirmed cf_known_to_fail Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-03/txt/msg00444.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60436 Markus Trippelsdorf changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2014-03-06 CC| |trippels at gcc dot gnu.org Known to work| |4.7.3 Target Milestone|--- |4.8.4 Summary|C preprocessor segfaults on |[4.8/4.9 Regression] C |assembly file |preprocessor segfaults on | |assembly file Ever confirmed|0 |1 Known to fail| |4.8.3, 4.9.0 --- Comment #1 from Markus Trippelsdorf --- Confirmed. Both trunk and 4.8.3 segfault. 4.7.3 is fine. /usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.3/cc1 -o /dev/null -E -lang-asm -quiet -v -D ABCDEFGHIJKLM ghc3240_8.s #0 0x0000000000c7136e in get_data_from_adhoc_loc(line_maps*, unsigned int) () #1 0x0000000000c67fe8 in expand_location(unsigned int) () #2 0x00000000004cc7b3 in preprocess_file(cpp_reader*) () #3 0x0000000000c806df in c_common_init() () #4 0x0000000000c7c90c in c_objc_common_init() () #5 0x0000000000cc12fb in toplev_main(int, char**) () #6 0x00007ffff7756fb0 in __libc_start_main () from /lib/libc.so.6 #7 0x0000000000c7bb1a in _start () /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1 -o /dev/null -E -lang-asm -quiet -v -D ABCDEFGHIJKLM ghc3240_8.s #0 0x0000000000aeeaac in expand_location_1(unsigned int, bool) [clone .lto_priv.2583] () #1 0x0000000000b60b10 in preprocess_file(cpp_reader*) () #2 0x0000000000b53316 in c_common_init() () #3 0x0000000000b1190b in c_objc_common_init() () #4 0x0000000000aeb141 in toplev_main(int, char**) () #5 0x00007ffff7756fb0 in __libc_start_main () from /lib/libc.so.6 #6 0x0000000000ae56e9 in _start () Valgrind shows: ==28570== Invalid read of size 4 ==28570== at 0xAEEAAC: expand_location_1(unsigned int, bool) [clone .lto_priv.2583] (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB60B0F: preprocess_file(cpp_reader*) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB53315: c_common_init() (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB1190A: c_objc_common_init() (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xAEB140: toplev_main(int, char**) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0x4D70FAF: (below main) (in /lib64/libc-2.19.so) ==28570== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==28570== ==28570== Invalid read of size 4 ==28570== at 0xAEEAAC: expand_location_1(unsigned int, bool) [clone .lto_priv.2583] (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB6DB50: location_get_source_line(expanded_location, int*) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xAEF365: diagnostic_show_locus(diagnostic_context*, diagnostic_info const*) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xAEC294: diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0x4DC59B: internal_error(char const*, ...) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xA377DB: crash_signal(int) [clone .lto_priv.1176] (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0x4D8508F: ??? (in /lib64/libc-2.19.so) ==28570== by 0xAEEAAB: expand_location_1(unsigned int, bool) [clone .lto_priv.2583] (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB60B0F: preprocess_file(cpp_reader*) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB53315: c_common_init() (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xB1190A: c_objc_common_init() (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== by 0xAEB140: toplev_main(int, char**) (in /usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.0/cc1) ==28570== Address 0x610 is not stack'd, malloc'd or (recently) free'd Could be related to PR58893.