WebJun 17, 2005 · syscall:::entry /OPT_follow && trackedpid[ppid] == -1 && 0 == self->child/ { /* setas child */ self->child = 1; /* print output */ self->code = errno == 0 ? "": "Err#"; /* OPT_printid ? printf("%5d/%d: ",pid,tid) : 1; */ OPT_printid ? printf("%5d/0x%x: ",pid,tid) : 1; OPT_relative ? printf("%8d: ",vtimestamp/1000) : 1; WebIf a futex is found to be held at exit time, the kernel sets the following bit of the futex word: #define FUTEX_OWNER_DIED 0x40000000. and wakes up the next futex waiter (if any). User-space does the rest of the cleanup. Otherwise, robust futexes are acquired by glibc by putting the TID into the futex field atomically.
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http://www.alexonlinux.com/how-to-obtain-unique-thread-identifier-on-linux WebDec 27, 2024 · I described how to add syscall to the kernel, compile it and test it in detail. As promised, I now would like to describe how to create a syscall that prints out the elapsed … jrewebポイント
How to obtain a unique thread identifier on Linux
WebJul 20, 2016 · Refer to the syscall numbers in arch/x86/entry/syscalls/syscall_64.tbl to determine if the table below is out of date By the way, the system call numbers are different for 32-bit x86. A system call table for i386 (32-bit) can be found at http://docs.cs.up.ac.za/programming/asm/derick_tut/syscalls.html Webuse of syscall(2). DESCRIPTION top The futex() system call provides a method for waiting until a certain condition becomes true. It is typically used as a blocking construct in the context of shared-memory synchronization. When using futexes, the majority of the WebDescription. syscall () is a small library function that invokes the system call whose assembly language interface has the specified number with the specified arguments. … jrewebサイト