Hi all, Greetings from me! I am using the gcov to test my program (add "-fprofile-arcs -ftest-coverage") on Linux, but the program will crash after start: (gdb) bt #0 0x00000034e433386f in __strlen_sse42 () from /lib64/libc.so.6 #1 0x000000000053c57a in __gcov_init () #2 0x000000000053c4b9 in _GLOBAL__I_65535_0_g_st_rerun_cmd_param () at source/rerun/aicent_ara_rerun.c:963 #3 0x000000000053dc26 in __do_global_ctors_aux () #4 0x0000000000403743 in _init () #5 0x00007fff6d6b3ce8 in ?? () #6 0x000000000053db55 in __libc_csu_init () #7 0x00000034e421ecb0 in __libc_start_main () from /lib64/libc.so.6 #8 0x0000000000404449 in _start () >From __gcov_init() source (http://www.coreboot.org/~stepan/coreboot-coverage/lib/libgcov.c.gcov.html) : ...... size_t filename_length = strlen(info->filename); ...... I can see the root cause is the "info->filename" is invalid (After disassembling the code, the address is 0x57c4ac00000000, and it is indeed invalid). I don't know how to analyse this bug, could anyone give any clues? Thanks very much in advance! P.S. My Linux environment: [root@localhost rel_1_3_3_20140902]# uname -a Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Sun Nov 10 22:19:54 EST 2013 x86_64 x86_64 x86_64 GNU/Linux gcc version: [root@localhost rel_1_3_3_20140902]# gcc -v Using built-in specs. Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux Thread model: posix gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) Best Regards Nan Xiao -- Best Regards Nan Xiao
