网站建设销售话术文本格式,深圳网站建设服务哪家便宜,把开发的网站让外网能访问要怎么做,wordpress 存储空间简介#xff1a; CSDN博客专家#xff0c;专注Android/Linux系统#xff0c;分享多mic语音方案、音视频、编解码等技术#xff0c;与大家一起成长#xff01; 优质专栏#xff1a;Audio工程师进阶系列【原创干货持续更新中……】#x1f680; 人生格言#xff1a; 人生… 简介 CSDN博客专家专注Android/Linux系统分享多mic语音方案、音视频、编解码等技术与大家一起成长 优质专栏Audio工程师进阶系列【原创干货持续更新中……】 人生格言 人生从来没有捷径只有行动才是治疗恐惧和懒惰的唯一良药. 更多原创,欢迎关注Android系统攻城狮 1.前言 本篇目的GDB之调试系统接口。 2.系统调用和编号的映射文件 /usr/share/gdb/syscalls/amd64-linux.xml ?xml version1.0?
!DOCTYPE syscalls_info SYSTEM gdb-syscalls.dtd
!-- Copyright (C) 2009-2022 Free Software Foundation, Inc.Copying and distribution of this file, with or without modification,are permitted in any medium without royalty provided the copyrightnotice and this notice are preserved. --
!-- This file was generated using the following file:/usr/src/linux/arch/x86/include/asm/unistd_64.hThe file mentioned above belongs to the Linux Kernel. --
syscalls_infosyscall nameread number0 groupsdescriptor/syscall namewrite number1 groupsdescriptor/syscall nameopen number2 groupsdescriptor,file/syscall nameclose number3 groupsdescriptor/syscall namestat number4 groupsfile/syscall namefstat number5 groupsdescriptor/syscall namelstat number6 groupsfile/syscall namepoll number7 groupsdescriptor/syscall namelseek number8 groupsdescriptor/syscall namemmap number9 groupsdescriptor,memory/syscall namemprotect number10 groupsmemory/syscall namemunmap number11 groupsmemory/syscall namebrk number12 groupsmemory/syscall namert_sigaction number13 groupssignal/syscall namert_sigprocmask number14 groupssignal/syscall namert_sigreturn number15 groupssignal/syscall nameioctl number16 groupsdescriptor/syscall namepread64 number17 groupsdescriptor/syscall namepwrite64 number18 groupsdescriptor/syscall namereadv number19 groupsdescriptor/syscall namewritev number20 groupsdescriptor/syscall nameaccess number21 groupsfile/syscall namepipe number22 groupsdescriptor/syscall nameselect number23 groupsdescriptor/syscall namesched_yield number24/syscall namemremap number25 groupsmemory/syscall namemsync number26 groupsmemory/syscall namemincore number27 groupsmemory/syscall namemadvise number28 groupsmemory/syscall nameshmget number29 groupsipc/syscall nameshmat number30 groupsipc,memory/syscall nameshmctl number31 groupsipc/syscall namedup number32 groupsdescriptor/syscall namedup2 number33 groupsdescriptor/syscall namepause number34 groupssignal/syscall namenanosleep number35/syscall namegetitimer number36/syscall namealarm number37/syscall namesetitimer number38/syscall namegetpid number39/syscall namesendfile number40 groupsdescriptor,network/syscall namesocket number41 groupsnetwork/syscall nameconnect number42 groupsnetwork/syscall nameaccept number43 groupsnetwork/syscall namesendto number44 groupsnetwork/syscall namerecvfrom number45 groupsnetwork/syscall namesendmsg number46 groupsnetwork/syscall namerecvmsg number47 groupsnetwork/syscall nameshutdown number48 groupsnetwork/syscall namebind number49 groupsnetwork/syscall namelisten number50 groupsnetwork/syscall namegetsockname number51 groupsnetwork/syscall namegetpeername number52 groupsnetwork/syscall namesocketpair number53 groupsnetwork/syscall namesetsockopt number54 groupsnetwork/syscall namegetsockopt number55 groupsnetwork/syscall nameclone number56 groupsprocess/syscall namefork number57 groupsprocess/syscall namevfork number58 groupsprocess/syscall nameexecve number59 groupsfile,process/syscall nameexit number60 groupsprocess/syscall namewait4 number61 groupsprocess/syscall namekill number62 groupssignal/syscall nameuname number63/syscall namesemget number64 groupsipc/syscall namesemop number65 groupsipc/syscall namesemctl number66 groupsipc/syscall nameshmdt number67 groupsipc,memory/syscall namemsgget number68 groupsipc/syscall namemsgsnd number69 groupsipc/syscall namemsgrcv number70 groupsipc/syscall namemsgctl number71 groupsipc/syscall namefcntl number72 groupsdescriptor/syscall nameflock number73 groupsdescriptor/syscall namefsync number74 groupsdescriptor/syscall namefdatasync number75 groupsdescriptor/syscall nametruncate number76 groupsfile/syscall nameftruncate number77 groupsdescriptor/syscall namegetdents number78 groupsdescriptor/syscall namegetcwd number79 groupsfile/syscall namechdir number80 groupsfile/syscall namefchdir number81 groupsdescriptor/syscall namerename number82 groupsfile/syscall namemkdir number83 groupsfile/syscall namermdir number84 groupsfile/syscall namecreat number85 groupsdescriptor,file/syscall namelink number86 groupsfile/syscall nameunlink number87 groupsfile/syscall namesymlink number88 groupsfile/syscall namereadlink number89 groupsfile/syscall namechmod number90 groupsfile/syscall namefchmod number91 groupsdescriptor/syscall namechown number92 groupsfile/syscall namefchown number93 groupsdescriptor/syscall namelchown number94 groupsfile/syscall nameumask number95/syscall namegettimeofday number96/syscall namegetrlimit number97/syscall namegetrusage number98/syscall namesysinfo number99/syscall nametimes number100/syscall nameptrace number101/syscall namegetuid number102/syscall namesyslog number103/syscall namegetgid number104/syscall namesetuid number105/syscall namesetgid number106/syscall namegeteuid number107/syscall namegetegid number108/syscall namesetpgid number109/syscall namegetppid number110/syscall namegetpgrp number111/syscall namesetsid number112/syscall namesetreuid number113/syscall namesetregid number114/syscall namegetgroups number115/syscall namesetgroups number116/syscall namesetresuid number117/syscall namegetresuid number118/syscall namesetresgid number119/syscall namegetresgid number120/syscall namegetpgid number121/syscall namesetfsuid number122/syscall namesetfsgid number123/syscall namegetsid number124/syscall namecapget number125/syscall namecapset number126/syscall namert_sigpending number127 groupssignal/syscall namert_sigtimedwait number128 groupssignal/syscall namert_sigqueueinfo number129 groupssignal/syscall namert_sigsuspend number130 groupssignal/syscall namesigaltstack number131 groupssignal/syscall nameutime number132 groupsfile/syscall namemknod number133 groupsfile/syscall nameuselib number134 groupsfile/syscall namepersonality number135/syscall nameustat number136/syscall namestatfs number137 groupsfile/syscall namefstatfs number138 groupsdescriptor/syscall namesysfs number139/syscall namegetpriority number140/syscall namesetpriority number141/syscall namesched_setparam number142/syscall namesched_getparam number143/syscall namesched_setscheduler number144/syscall namesched_getscheduler number145/syscall namesched_get_priority_max number146/syscall namesched_get_priority_min number147/syscall namesched_rr_get_interval number148/syscall namemlock number149 groupsmemory/syscall namemunlock number150 groupsmemory/syscall namemlockall number151 groupsmemory/syscall namemunlockall number152 groupsmemory/syscall namevhangup number153/syscall namemodify_ldt number154/syscall namepivot_root number155 groupsfile/syscall name_sysctl number156/syscall nameprctl number157/syscall namearch_prctl number158 groupsprocess/syscall nameadjtimex number159/syscall namesetrlimit number160/syscall namechroot number161 groupsfile/syscall namesync number162/syscall nameacct number163 groupsfile/syscall namesettimeofday number164/syscall namemount number165 groupsfile/syscall nameumount2 number166 groupsfile/syscall nameswapon number167 groupsfile/syscall nameswapoff number168 groupsfile/syscall namereboot number169/syscall namesethostname number170/syscall namesetdomainname number171/syscall nameiopl number172/syscall nameioperm number173/syscall namecreate_module number174/syscall nameinit_module number175/syscall namedelete_module number176/syscall nameget_kernel_syms number177/syscall namequery_module number178/syscall namequotactl number179 groupsfile/syscall namenfsservctl number180/syscall namegetpmsg number181/syscall nameputpmsg number182/syscall nameafs_syscall number183/syscall nametuxcall number184/syscall namesecurity number185/syscall namegettid number186/syscall namereadahead number187 groupsdescriptor/syscall namesetxattr number188 groupsfile/syscall namelsetxattr number189 groupsfile/syscall namefsetxattr number190 groupsdescriptor/syscall namegetxattr number191 groupsfile/syscall namelgetxattr number192 groupsfile/syscall namefgetxattr number193 groupsdescriptor/syscall namelistxattr number194 groupsfile/syscall namellistxattr number195 groupsfile/syscall nameflistxattr number196 groupsdescriptor/syscall nameremovexattr number197 groupsfile/syscall namelremovexattr number198 groupsfile/syscall namefremovexattr number199 groupsdescriptor/syscall nametkill number200 groupssignal/syscall nametime number201/syscall namefutex number202/syscall namesched_setaffinity number203/syscall namesched_getaffinity number204/syscall nameset_thread_area number205/syscall nameio_setup number206/syscall nameio_destroy number207/syscall nameio_getevents number208/syscall nameio_submit number209/syscall nameio_cancel number210/syscall nameget_thread_area number211/syscall namelookup_dcookie number212/syscall nameepoll_create number213 groupsdescriptor/syscall nameepoll_ctl_old number214/syscall nameepoll_wait_old number215/syscall nameremap_file_pages number216 groupsmemory/syscall namegetdents64 number217 groupsdescriptor/syscall nameset_tid_address number218/syscall namerestart_syscall number219/syscall namesemtimedop number220 groupsipc/syscall namefadvise64 number221 groupsdescriptor/syscall nametimer_create number222/syscall nametimer_settime number223/syscall nametimer_gettime number224/syscall nametimer_getoverrun number225/syscall nametimer_delete number226/syscall nameclock_settime number227/syscall nameclock_gettime number228/syscall nameclock_getres number229/syscall nameclock_nanosleep number230/syscall nameexit_group number231 groupsprocess/syscall nameepoll_wait number232 groupsdescriptor/syscall nameepoll_ctl number233 groupsdescriptor/syscall nametgkill number234 groupssignal/syscall nameutimes number235 groupsfile/syscall namevserver number236/syscall namembind number237 groupsmemory/syscall nameset_mempolicy number238 groupsmemory/syscall nameget_mempolicy number239 groupsmemory/syscall namemq_open number240/syscall namemq_unlink number241/syscall namemq_timedsend number242/syscall namemq_timedreceive number243/syscall namemq_notify number244/syscall namemq_getsetattr number245/syscall namekexec_load number246/syscall namewaitid number247 groupsprocess/syscall nameadd_key number248/syscall namerequest_key number249/syscall namekeyctl number250/syscall nameioprio_set number251/syscall nameioprio_get number252/syscall nameinotify_init number253 groupsdescriptor/syscall nameinotify_add_watch number254 groupsdescriptor/syscall nameinotify_rm_watch number255 groupsdescriptor/syscall namemigrate_pages number256 groupsmemory/syscall nameopenat number257 groupsdescriptor,file/syscall namemkdirat number258 groupsdescriptor,file/syscall namemknodat number259 groupsdescriptor,file/syscall namefchownat number260 groupsdescriptor,file/syscall namefutimesat number261 groupsdescriptor,file/syscall namenewfstatat number262 groupsdescriptor,file/syscall nameunlinkat number263 groupsdescriptor,file/syscall namerenameat number264 groupsdescriptor,file/syscall namelinkat number265 groupsdescriptor,file/syscall namesymlinkat number266 groupsdescriptor,file/syscall namereadlinkat number267 groupsdescriptor,file/syscall namefchmodat number268 groupsdescriptor,file/syscall namefaccessat number269 groupsdescriptor,file/syscall namepselect6 number270 groupsdescriptor/syscall nameppoll number271 groupsdescriptor/syscall nameunshare number272 groupsprocess/syscall nameset_robust_list number273/syscall nameget_robust_list number274/syscall namesplice number275 groupsdescriptor/syscall nametee number276 groupsdescriptor/syscall namesync_file_range number277 groupsdescriptor/syscall namevmsplice number278 groupsdescriptor/syscall namemove_pages number279 groupsmemory/syscall nameutimensat number280 groupsdescriptor,file/syscall nameepoll_pwait number281 groupsdescriptor/syscall namesignalfd number282 groupsdescriptor,signal/syscall nametimerfd_create number283 groupsdescriptor/syscall nameeventfd number284 groupsdescriptor/syscall namefallocate number285 groupsdescriptor/syscall nametimerfd_settime number286 groupsdescriptor/syscall nametimerfd_gettime number287 groupsdescriptor/syscall nameaccept4 number288 groupsnetwork/syscall namesignalfd4 number289 groupsdescriptor,signal/syscall nameeventfd2 number290 groupsdescriptor/syscall nameepoll_create1 number291 groupsdescriptor/syscall namedup3 number292 groupsdescriptor/syscall namepipe2 number293 groupsdescriptor/syscall nameinotify_init1 number294 groupsdescriptor/syscall namepreadv number295 groupsdescriptor/syscall namepwritev number296 groupsdescriptor/
/syscalls_info
3.设置系统函数mmap catchpoint实例 mmap对应编号9
1 #include cstdio
2
3 int main(void){
4 int num 100;
5
6 printf(num %d\n, num);
7 return 0;
8 }
调试方式一系统函数名调试
(gdb) catch syscall mmap
Catchpoint 1 (syscall mmap [9])
(gdb) r
Starting program: /home/meek/demo/C/111/test Catchpoint 1 (call to syscall mmap), __mmap64 (offset0, fd-1, flags34, prot3, len8192, addr0x0) at ../sysdeps/unix/sysv/linux/mmap64.c:58
58 ../sysdeps/unix/sysv/linux/mmap64.c: 没有那个文件或目录.
(gdb) c
Continuing.Catchpoint 1 (returned from syscall mmap), __mmap64 (offset0, fd-1, flags34, prot3, len8192, addr0x0) at ../sysdeps/unix/sysv/linux/mmap64.c:58
58 in ../sysdeps/unix/sysv/linux/mmap64.c调试方式二编号调试(mmap函数对应编号9
(gdb) catch syscall 9
Catchpoint 2 (syscall mmap [9])
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /home/meek/demo/C/111/test Catchpoint 1 (call to syscall mmap), __mmap64 (offset0, fd-1, flags34, prot3, len8192, addr0x0) at ../sysdeps/unix/sysv/linux/mmap64.c:58
58 ../sysdeps/unix/sysv/linux/mmap64.c: 没有那个文件或目录.
(gdb) c
Continuing.Catchpoint 1 (returned from syscall mmap), __mmap64 (offset0, fd-1, flags34, prot3, len8192, addr0x0) at ../sysdeps/unix/sysv/linux/mmap64.c:58
58 in ../sysdeps/unix/sysv/linux/mmap64.c
//查看当前堆栈信息
(gdb) bt
#0 __mmap64 (offset0, fd3, flags2050, prot1, len2260560, addr0x0) at ../sysdeps/unix/sysv/linux/mmap64.c:58
#1 __mmap64 (addr0x0, lenlenentry2260560, protprotentry1, flagsflagsentry2050, fdfdentry3, offset0) at ../sysdeps/unix/sysv/linux/mmap64.c:46
#2 0x00007ffff7fcbf1c in _dl_map_segment (fd3, maplength2260560, mapprefoptimized out, c0x7fffffffc700) at ./dl-map-segments.h:29
#3 _dl_map_segments (loader0x4, has_holesfalse, maplength2260560, nloadcmdsoptimized out, loadcmds0x7fffffffc700, type3, headeroptimized out, fd3, l0x7ffff7fbb160) at ./dl-map-segments.h:102
#4 _dl_map_object_from_fd (namenameentry0x5555555544a9 libc.so.6, orignameorignameentry0x0, fdoptimized out, fbpoptimized out, realnameoptimized out, loaderloaderentry0x7ffff7ffe2e0, l_typeoptimized out, modeoptimized out, stack_endpoptimized out, nsidoptimized out) at ./elf/dl-load.c:1258
#5 0x00007ffff7fcd601 in _dl_map_object (loader0x7ffff7ffe2e0, name0x5555555544a9 libc.so.6, type1, trace_mode0, mode0, nsidoptimized out) at ./elf/dl-load.c:2327
#6 0x00007ffff7fc6495 in openaux (aaentry0x7fffffffd4c0) at ./elf/dl-deps.c:64
#7 0x00007ffff7fe036a in _dl_catch_exception (exceptionexceptionentry0x7fffffffd4a0, operateoperateentry0x7ffff7fc6460 openaux, argsargsentry0x7fffffffd4c0) at ./elf/dl-error-skeleton.c:208
#8 0x00007ffff7fc6c7c in _dl_map_object_deps (mapmapentry0x7ffff7ffe2e0, preloadspreloadsentry0x0, npreloadsnpreloadsentry0, trace_modeoptimized out, open_modeopen_modeentry0) at ./elf/dl-deps.c:248
#9 0x00007ffff7fe63c0 in dl_main (phdroptimized out, phnumoptimized out, user_entryoptimized out, auxvoptimized out) at ./elf/rtld.c:1970
#10 0x00007ffff7fe285c in _dl_sysdep_start (start_argptrstart_argptrentry0x7fffffffdd70, dl_maindl_mainentry0x7ffff7fe4900 dl_main) at ../elf/dl-sysdep.c:256
#11 0x00007ffff7fe45b8 in _dl_start_final (arg0x7fffffffdd70) at ./elf/rtld.c:507
#12 _dl_start (arg0x7fffffffdd70) at ./elf/rtld.c:596
#13 0x00007ffff7fe32b8 in _start () from /lib64/ld-linux-x86-64.so.2
#14 0x0000000000000001 in ?? ()
#15 0x00007fffffffe118 in ?? ()
#16 0x0000000000000000 in ?? ()
