「kdump ktrace.out a.out」の版間の差分
提供: FreeBSD入門
(ページの作成：「<!-- vim: fileencoding=utf-8 filetype=mediawiki --> Hello World プログラムを ktrace して記録された ktrace.out を kdump コマンドでデコ...」) |
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== 使い方 == | == 使い方 == | ||
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| + | RET や CALL などのオペレーションの意味は、 [[kdump]] を参照してください。 | ||
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2013年5月25日 (土) 18:53時点における最新版
Hello World プログラムを ktrace して記録された ktrace.out を kdump コマンドでデコードした例です。
概要
Hello World プログラムを ktrace して記録された ktrace.out を kdump コマンドでデコードした例です。
使い方
RET や CALL などのオペレーションの意味は、 kdump を参照してください。
% kdump 3899 ktrace RET ktrace 0 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/local/sbin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/local/bin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/sbin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/bin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/sbin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/bin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/games/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/X11R6/bin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/home/secure/s/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "/usr/local/apache2/bin/a.out" 3899 ktrace RET execve -1 errno 2 No such file or directory 3899 ktrace CALL execve(0xbfbfe238,0xbfbfe778,0xbfbfe780) 3899 ktrace NAMI "./a.out" 3899 ktrace NAMI "/libexec/ld-elf.so.1" 3899 a.out RET execve 0 3899 a.out CALL mmap(0,0x8000,0x3<PROT_READ|PROT_WRITE>,0x1002<MAP_PRIVATE|MAP_ANON>,0xffffffff,0,0) 3899 a.out RET mmap 671481856/0x28060000 3899 a.out CALL issetugid 3899 a.out RET issetugid 0 3899 a.out CALL lstat(0x28065000,0xbfbfd378) 3899 a.out NAMI "/etc" 3899 a.out STRU struct stat {dev=98, ino=1041920, mode=drwxr-xr-x , nlink=20, uid=0, gid=0, rdev=4167688, atime=1332581274, stime=1368894574, ctime=1368894574, birthtime=1325575620, size=2048, blksize=32768, blocks=8, flags=0x0 } 3899 a.out RET lstat 0 3899 a.out CALL lstat(0x28065000,0xbfbfd378) 3899 a.out NAMI "/etc/libmap.conf" 3899 a.out RET lstat -1 errno 2 No such file or directory 3899 a.out CALL open(0x2805bd6d,0<O_RDONLY>,<unused>0) 3899 a.out NAMI "/var/run/ld-elf.so.hints" 3899 a.out RET open 3 3899 a.out CALL read(0x3,0xbfbfdd6c,0x80) 3899 a.out GIO fd 3 read 128 bytes 0x0000 4568 6e74 0100 0000 8000 0000 aa00 0000 0000 0000 a900 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |Ehnt..........................................................| 0x003e 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................................................| 0x007c 0000 0000 |....| 3899 a.out RET read 128/0x80 3899 a.out CALL lseek(0x3,0x80,SEEK_SET,0) 3899 a.out RET lseek 128/0x80 3899 a.out CALL read(0x3,0x28062300,0xaa) 3899 a.out GIO fd 3 read 170 bytes "/lib:/usr/lib:/usr/lib/compat:/usr/local/lib:/usr/local/lib/R/lib:/usr/local/lib/compat:/usr/local/lib/gcc46:/usr/local/lib/gcc48:/usr/local/lib/mysql:/usr/local/lib/pth\0" 3899 a.out RET read 170/0xaa 3899 a.out CALL close(0x3) 3899 a.out RET close 0 3899 a.out CALL access(0x28065000,0<F_OK>) 3899 a.out NAMI "/lib/libc.so.7" 3899 a.out RET access 0 3899 a.out CALL open(0x28061020,0<O_RDONLY>,<unused>0) 3899 a.out NAMI "/lib/libc.so.7" 3899 a.out RET open 3 3899 a.out CALL fstat(0x3,0xbfbfe00c) 3899 a.out STRU struct stat {dev=98, ino=2749088, mode=-r--r--r-- , nlink=1, uid=0, gid=0, rdev=11001496, atime=1368894594, stime=1368872575, ctime=1368872583, birthtime=1368872575, size=1218588, blksize=32768, blocks=2496, flags=0x20 000 } 3899 a.out RET fstat 0 3899 a.out CALL mmap(0,0x1000,0x1<PROT_READ>,0x40002<MAP_PRIVATE>,0x3,0,0) 3899 a.out RET mmap 671514624/0x28068000 3899 a.out CALL mmap(0,0x12a000,0<PROT_NONE>,0x21002<MAP_PRIVATE|MAP_ANON|MAP_NOCORE>,0xffffffff,0,0) 3899 a.out RET mmap 671518720/0x28069000 3899 a.out CALL mmap(0x28069000,0x10d000,0x5<PROT_READ|PROT_EXEC>,0x60012<MAP_PRIVATE|MAP_FIXED|MAP_NOCORE>,0x3,0,0) 3899 a.out RET mmap 671518720/0x28069000 3899 a.out CALL mmap(0x28176000,0x7000,0x3<PROT_READ|PROT_WRITE>,0x40012<MAP_PRIVATE|MAP_FIXED>,0x3,0x10c000,0) 3899 a.out RET mmap 672620544/0x28176000 3899 a.out CALL mmap(0x2817d000,0x16000,0x3<PROT_READ|PROT_WRITE>,0x1012<MAP_PRIVATE|MAP_FIXED|MAP_ANON>,0xffffffff,0,0) 3899 a.out RET mmap 672649216/0x2817d000 3899 a.out CALL munmap(0x28068000,0x1000) 3899 a.out RET munmap 0 3899 a.out CALL close(0x3) 3899 a.out RET close 0 3899 a.out CALL mmap(0,0x11000,0x3<PROT_READ|PROT_WRITE>,0x1002<MAP_PRIVATE|MAP_ANON>,0xffffffff,0,0) 3899 a.out RET mmap 672739328/0x28193000 3899 a.out CALL sysarch(0xa,0xbfbfe090) 3899 a.out RET sysarch 0 3899 a.out CALL sigprocmask(SIG_BLOCK,0x2805f920,0xbfbfe06c) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_SETMASK,0x2805f930,0) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_BLOCK,0x2805f920,0xbfbfe03c) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_SETMASK,0x2805f930,0) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_BLOCK,0x2805f920,0xbfbfe03c) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_SETMASK,0x2805f930,0) 3899 a.out RET sigprocmask 0 3899 a.out CALL fstat(0x1,0xbfbfe5c0) 3899 a.out STRU struct stat {dev=1895890688, ino=113, mode=crw--w---- , nlink=1, uid=1001, gid=4, rdev=113, atime=1369465141, stime=1369465141, ctime=1369465141, birthtime=-1, size=0, blksize=4096, blocks=0, flags=0x0 } 3899 a.out RET fstat 0 3899 a.out CALL readlink(0x2816b3b9,0xbfbfe196,0x400) 3899 a.out NAMI "/etc/malloc.conf" 3899 a.out RET readlink -1 errno 2 No such file or directory 3899 a.out CALL issetugid 3899 a.out RET issetugid 0 3899 a.out CALL break(0x8049620) 3899 a.out RET break 0 3899 a.out CALL break(0x8400000) 3899 a.out RET break 0 3899 a.out CALL mmap(0,0x400000,0x3<PROT_READ|PROT_WRITE>,0x1002<MAP_PRIVATE|MAP_ANON>,0xffffffff,0,0) 3899 a.out RET mmap 672808960/0x281a4000 3899 a.out CALL mmap(0x285a4000,0x25c000,0x3<PROT_READ|PROT_WRITE>,0x1002<MAP_PRIVATE|MAP_ANON>,0xffffffff,0,0) 3899 a.out RET mmap 677003264/0x285a4000 3899 a.out CALL munmap(0x281a4000,0x25c000) 3899 a.out RET munmap 0 3899 a.out CALL ioctl(0x1,TIOCGETA,0xbfbfe5f0) 3899 a.out RET ioctl 0 3899 a.out CALL write(0x1,0x28405000,0xc) 3899 a.out GIO fd 1 wrote 12 bytes "Hello World " 3899 a.out RET write 12/0xc 3899 a.out CALL sigprocmask(SIG_BLOCK,0x2805f920,0xbfbfe60c) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_SETMASK,0x2805f930,0) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_BLOCK,0x2805f920,0xbfbfe5cc) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_SETMASK,0x2805f930,0) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_BLOCK,0x2805f920,0xbfbfe5cc) 3899 a.out RET sigprocmask 0 3899 a.out CALL sigprocmask(SIG_SETMASK,0x2805f930,0) 3899 a.out RET sigprocmask 0 3899 a.out CALL exit(0)