I'm getting E: The repository 'https://apt.postgresql.org/pub/repos/apt bionic-pgdg Release' no longer has a Release file. on sudo apt update. That means that repo for bionic is not accessible. In...

In Android the bionic loader sets a default signal handler for every process on statrtup: void debugger_init() { struct sigaction act; memset(&act, 0, sizeof(act)); act.sa_sigaction = debug...

As you may know, Bionic is a C library used by Google to run Android applications. There are efforts to compile it in Linux machines, so it could be easily used outside Android. This is the code fr...

I'm trying to implement a native shared library(.so) for the Android system. Naturally, there are some code blocks that need to be thread-safe. I found out here that pthreads locks, mutexes, or co...

I am experimenting on alternate signal stack(man sigaltstack). Two pieces of code allocating stack differently: int method1(void) { struct sigaction act, oldact; memset(&act, 0, sizeof(act...

I have large project which needs futimes or futimens function. Unfortunately there are no such functions in header files in android ndk include folder. Is there a work-around (stub or simple code s...

I read the memcpy implementation in the http://androidxref.com/4.0.4/xref/bionic/libc/string/bcopy.c find following code is hard to understand, can anybody explain it? 36 /* 37 * sizeof(word) MU...

What does this option to ld mean? -lrt I know to some degree it means that ld is looking for the library with real-time extensions, but after searching extensively, I couldn't find an exact defin...