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From: "danglin at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/11607] New: [3.3.1 regression] Segmentation fault in gen-protos in stage2 Date: Sun, 20 Jul 2003 17:15:00 -0000 [thread overview] Message-ID: <20030720171534.11607.danglin@gcc.gnu.org> (raw) PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11607 Summary: [3.3.1 regression] Segmentation fault in gen-protos in stage2 Product: gcc Version: 3.3.1 Status: UNCONFIRMED Severity: critical Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: danglin at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org,mark at codesourcery dot com GCC build triplet: hppa2.0w-hp-hpux11.11 GCC host triplet: hppa64-hp-hpux11.11 GCC target triplet: hppa2.0w-hp-hpux11.11 ./xgcc -B./ -B/opt/gnu64/hppa64-hp-hpux11.11/bin/ -isystem /opt/gnu64/hppa64-hp- hpux11.11/include -isystem /opt/gnu64/hppa64-hp-hpux11.11/sys-include fixtmp.c - w -U__SIZE_TYPE__ -U__PTRDIFF_TYPE__ -U__WCHAR_TYPE__ -E \ | sed -e 's/ / /g' -e 's/ *(/ (/g' -e 's/ [ ]*/ /g' -e 's/( )/()/' \ | ./gen-protos >xsys-protos.hT /bin/sh: 26493 Memory fault(coredump) Running gen-protos under gdb, I see: Program received signal SIGSEGV, Segmentation fault. 0x4000000000002e64 in add_hash (fname=0x800000010000ea33 "TLappend") at ../../gcc/gcc/gen-protos.c:44 44 if (hash_tab[i] != 0) (gdb) printf "0x%lx\n", &hash_tab 0x8000000100000470 (gdb) printf "0x%lx\n", i 0xea5a53b (gdb) info addr i Symbol "i" is a variable in register r21. (gdb) info addr hash_tab Symbol "hash_tab" is static storage at address 0x8000000100000470. gdb) disass 0x4000000000002e5c 0x4000000000002e6c Dump of assembler code from 0x4000000000002e5c to 0x4000000000002e6c: 0x4000000000002e5c <add_hash+172>: extrd,s ret0,63,32,r21 0x4000000000002e60 <add_hash+176>: depd,z r21,61,62,r22 0x4000000000002e64 <add_hash+180>: ldw,s r21(sr0,r24),r19 0x4000000000002e68 <add_hash+184>: cmpib,= 0,r19,0x4000000000002f0c <add_hash+348> End of assembler dump. The C code is: i = hashstr (fname, strlen (fname)) % HASH_SIZE; i0 = i; if (hash_tab[i] != 0) It looks as if this failure is caused by this patch :( 2003-07-08 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> PR Target/11453 * pa.md: Disparage all mtsar constraints. (extzv, extv, insv): Don't fail on length of {32|64}. This may also be the cause of the miscompilation reported in PR 11516.
next reply other threads:[~2003-07-20 17:15 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-07-20 17:15 danglin at gcc dot gnu dot org [this message] 2003-07-21 15:35 ` [Bug target/11607] " danglin at gcc dot gnu dot org 2003-07-23 15:18 ` cvs-commit at gcc dot gnu dot org 2003-07-23 15:53 ` cvs-commit at gcc dot gnu dot org 2003-07-23 16:12 ` danglin at gcc dot gnu dot org 2003-07-25 16:28 ` jbuck at gcc dot gnu dot org
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