From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23781 invoked by alias); 28 Jan 2004 23:45:34 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 23755 invoked by uid 48); 28 Jan 2004 23:45:33 -0000 Date: Wed, 28 Jan 2004 23:45:00 -0000 From: "danglin at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org Message-ID: <20040128234527.13906.danglin@gcc.gnu.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug bootstrap/13906] New: genmodes.c:964: internal compiler error: Bus error in md5_process_block X-Bugzilla-Reason: CC X-SW-Source: 2004-01/txt/msg03655.txt.bz2 List-Id: stage1/xgcc -Bstage1/ -B/opt/gnu/gcc/gcc-3.4/hppa2.0w-hp-hpux11.00/bin/ -c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition -Werror -fno-common -DHAVE_CO NFIG_H -DGENERATOR_FILE -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc /gcc/../include ../../gcc/gcc/genmodes.c -o genmodes.o ../../gcc/gcc/genmodes.c: In function `emit_mode_mask': ../../gcc/gcc/genmodes.c:964: internal compiler error: Bus error The configure command was: ../gcc/configure --with-gnu-as --with-as=/opt/gnu/bin/as --enable-shared --with- local-prefix=/opt/gnu --prefix=/opt/gnu/gcc/gcc-3.4 --enable-debug=no --disable- nls --enable-checking="misc,tree,rtl,rtlflag,gc,gcac,fold" && The problem does not occur if `--enable-checking' is not specified. The stack trace is: Program received signal SIGBUS, Bus error. md5_process_block (buffer=0x7aed3f6e, len=64, ctx=0x7eff1500) at ../../gcc/libiberty/md5.c:325 325 OP (A, B, C, D, 7, (md5_uint32) 0xd76aa478); #0 md5_process_block (buffer=0x7aed3f6e, len=64, ctx=0x7eff1500) at ../../gcc/libiberty/md5.c:325 #1 0x00af0064 in md5_process_bytes (buffer=0x7aed3fae, len=96, ctx=0x7eff1500) at ../../gcc/libiberty/md5.c:239 #2 0x00270b84 in fold_checksum_tree (expr=0x7aed3f00, ctx=0x7eff1500, ht=0x40079aa0) at ../../gcc/gcc/fold-const.c:8408 ... The fault occurs because of a misaligned load for a word: 0x00af0184 : ldw 0(,r18),r20 (gdb) printf "0x%x\n",$r18 0x7aed3f6e This is buffer address passed to md5_process_block from md5_process_bytes. The same error occurs on hppa-linux but the exception is handled by the kernel unaligned handler. -- Summary: genmodes.c:964: internal compiler error: Bus error in md5_process_block Product: gcc Version: 3.4.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: bootstrap 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 GCC build triplet: hppa2.0-hp-hpux11.00 GCC host triplet: hppa2.0-hp-hpux11.00 GCC target triplet: hppa2.0-hp-hpux11.00 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13906