| Summary: | [3.3 regression] Infinite memory usage after syntax error | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Falk Hueffner <falk> |
| Component: | c++ | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | critical | CC: | gcc-bugs, vladimir |
| Priority: | P2 | Keywords: | error-recovery, ice-on-invalid-code |
| Version: | 3.3 | ||
| Target Milestone: | 3.3.1 | ||
| Host: | Target: | ||
| Build: | Known to work: | ||
| Known to fail: | Last reconfirmed: | 2003-06-22 17:09:04 | |
| Attachments: | Preprocessed file which triggers infinite memory usage. | ||
Confirmed. GCC 3.3 stucks forever with the given code. I've just run into very similiar problem. The code with cause 3.2 to produce
error message, causes 3.3 to eat all virtual memory.
g++ version is:
Reading specs from /usr/lib/gcc-lib/i386-linux/3.3/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib
--enable-nls --without-included-gettext --enable-__cxa_atexit
--enable-clocale=gnu --enable-debug --enable-java-gc=boehm
--enable-java-awt=xlib --enable-objc-gc i386-linux
Thread model: posix
gcc version 3.3 (Debian)
The complete command was:
g++-3.3 -save-temps -x c++ -Wall -ftemplate-depth-100 -O0 -fno-inline -g
-DDEBUG_CFG -I"." -I".." -I"../../lib" -I"../../lib/nstl" -I"../cpp_mark"
-I"/space/NM/boost" -I"/space/NM/boost-sandbox"
-I"bin/gcc/debug/main-target-nm_asm_analysis"
-I"bin/gcc/debug/main-target-nm_asm"
-I"../cpp_mark/bin/gcc/debug/main-target-cpp_lite" -I"bin/gcc/debug"
-I"../cpp_mark/bin/gcc/debug" -c -o
"bin/gcc/debug/main-target-nm_asm_analysis/instruction_instance.o" "xxx.cpp"
virtual memory exhausted: Cannot allocate memory
The offending line from xxx.cpp file is
visit(const Whale::NonterminalNonsense____LiteralExpression& t);
where there's no such class in namespace Whale.
I'm attaching the preprocessed file.
Created attachment 4307 [details]
Preprocessed file which triggers infinite memory usage.
Subject: Bug 11282 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_3-branch Changes by: nathan@gcc.gnu.org 2003-07-23 16:43:02 Modified files: gcc/cp : ChangeLog decl.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/parse: crash7.C Log message: cp: PR c++/11282 * decl.c: (reshape_init): Always advance *INITP. testsuite: PR c++/11282 * g++.dg/parse/crash7.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.185&r2=1.3076.2.186 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.965.2.56&r2=1.965.2.57 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.241&r2=1.2261.2.242 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/parse/crash7.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.4.1 fixed the first bug for 3.3.1 2003-07-23 Nathan Sidwell <nathan@codesourcery.com> PR c++/11282 * decl.c: (reshape_init): Always advance *INITP. |
Hi, this was reported by Lukas Ruf (ruf at rawip org) on gcc-bugs 29 May 2003, however I can't find it in the database (or even in the list archive...?). Test case: struct parameter_struct_t { char short_option; char *long_option; }; parameter_struct_t *parameters[] = { { 'f'; "from"; }; }; % g++ --version g++ (GCC) 3.3.1 20030619 (prerelease) % g++ -c away.cc away.cc:8: error: syntax error before `;' token [killed because out of memory] mainline says: away.cc:8: error: expected `}' away.cc:8: error: expected `}' away.cc:8: error: brace-enclosed initializer used to initialize ` parameter_struct_t*' away.cc:9: error: expected unqualified-id away.cc:9: error: expected `,' or `;' away.cc:10: error: expected declaration