int send_sig_info(int sig, struct kernel_siginfo *info, struct task_struct *p) { /* 确保遗留内核用户不发送错误值(正常路径在 check_kill_permission 中检查)*/ if (!valid_signal(sig)) // return sig <= _NSIG ? 1 : 0; // #define _NSIG 64 return -EINVAL; return do_send_sig_info(...
info.si_code = SI_KERNEL;/*** send the signal to current process ***/intret =send_sig_info(SIGUSR1, &info, task);if(ret <0) { printk(KERN_WARNING"send_sig_info: error sending signal (ret: %d)\n", ret); }else{ printk(KERN_DEBUG"send signal to pid: %d\n", task->pid); ...
Kernel space可以执行任意命令，调用系统的一切资源；User space只能执行简单的运算，不能直接调用系统资源...
‘send_sig_info’ int ret = send_sig_info(aclpci->signal_number, &aclpci->signal_info, aclpci- ^ cc1: some warnings being treated as errors scripts/Makefile.build:308: recipe for target '/tmp/opencl_driver_tF7ebM/aclpci.o' failed make: *** Error 1 Makefile:1550: ...
如果对 SIGPIPE 进行忽略处理, 二次调用write方法时, 会返回-1, 同时errno置为SIGPIPE。 处理方法: 在初始化时调用 signal(SIGPIPE,SIG_IGN) 忽略该信号(只需一次) ,SIGPIPE交给了系统处理。 此时 send 、recv或write 函数将返回-1,errno为EPIPE,可视情况关闭socket或其他处理...
Nobody can block/ignore SIGSTOP, no need to use force_sig_specific() in ptrace_attach. Use the "regular" send_sig_info(). With this patch stracing of /sbin/init doesn't clear its SIGNAL_UNKILLABLE, but not that this makes ptracing of init safe. Signed-off-by: Oleg Nesterov <oleg@...
Fork2 Star6 Code Issues1 Pull requests Actions Projects Security Insights New issue Jump to bottom Closed patcrysdaleopened this issueNov 27, 2020· 2 comments Closed error: passing argument 2 of ‘send_sig_info’ from incompatible pointer type#3 ...
SIGDN 枚举 SMCSHCHANGENOTIFYSTRUCT 结构 SMDATA 结构 SMINFO 结构 SORTCOLUMN 结构 SPACTION 枚举 SPTEXT 枚举 STPFLAG 枚举 SV2CVW2_PARAMS 结构 SVUIA_STATUS 枚举 tagDESKBANDCID 枚举 THUMBBUTTON 结构 THUMBBUTTONFLAGS 枚举 THUMBBUTTONMASK 枚举 Shtypes.h Storageprovider.h Syncmgr.h Thumbcache...
全部的学习汇总: https://github.com/GreyZhang/little_bits_of_linux 继续分析这个额exit.c的文件,这次看一个比较简单的函数,send_sig。 &nb... 92-全局请求头7/step中保存和显示、加入多用例运行的底层send函数 参考大佬文章:92 step中保存 切换不同的step显示自身保存的公共请求头 初始化清空: 根据请求返...