ref: 1d0f8a7e512e5abfea9c5d2fdf2fb4c05efc720b dir: /sys/src/libc/port/_assert.c/
#include <u.h> #include <libc.h> void (*__assert)(char*); void _assert(char *s) { if(__assert) (*__assert)(s); fprint(2, "assert failed: %s\n", s); abort(); }