zhengda, le Sat 09 Aug 2008 13:59:19 +0200, a écrit : > if (name) > free (name);
No need for an if here, free(NULL); is void already. > When I build the glibc, I got the error as follow: > > CPP='gcc-4.2 -E -x c-header' > /root/storage/glibc-2.7/build-tree/hurd-i386-libc/elf/ld.so.1 > --library-path > /root/storage/glibc-2.7/build-tree/hurd-i386-libc:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/math:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/elf:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/dlfcn:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/nss:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/nis:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/rt:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/resolv:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/crypt:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/mach:/root/storage/glibc-2.7/build-tree/hurd-i386-libc/hurd:/X11R6/lib > > /root/storage/glibc-2.7/build-tree/hurd-i386-libc/sunrpc/rpcgen -Y > ../scripts -c rpcsvc/bootparam_prot.x -o > /root/storage/glibc-2.7/build-tree/hurd-i386-libc/sunrpc/xbootparam_prot.T > rpcgen: hurdmalloc.c:287: _hurd_free: Assertion `((h)->check) == > 0x8a3c743e' failed. > make[2]: *** > [/root/storage/glibc-2.7/build-tree/hurd-i386-libc/sunrpc/xbootparam_prot.stmp] > > Aborted > make[2]: Leaving directory > `/root/storage/glibc-2.7/build-tree/glibc-2.7/sunrpc' > make[1]: *** [sunrpc/others] Error 2 > make[1]: Leaving directory `/root/storage/glibc-2.7/build-tree/glibc-2.7' > make: *** [all] Error 2 > > I don't understand what the error means See hurrdmalloc.c:287. That's a double free. > and I cannot find any problems in my code myself. I had a look and could not find, except you should initialize server to MACH_PORT_NULL, since you have a code path that doesn't initialize it. > Can anyone see the problem in my code? The problem may not be directly in your code. You should run the test by hand in gdb, something like: LD_LIBRARY_PATH=/root/storage/glibc-2.7/build-tree/hurd-i386-libc gdb --args /root/storage/glibc-2.7/build-tree/hurd-i386-libc/sunrpc/rpcgen -Y ../scripts -c rpcsvc/bootparam_prot.x -o /root/storage/glibc-2.7/build-tree/hurd-i386-libc/sunrpc/xbootparam_prot.T to get a backtrace. Samuel
