ref: 5d0758b3eea7b9b7b0dac1e2ec3254f11ba4e6cb 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(); }