Merge "debuggerd: add an opt-out for OEMs that would rather collect core dumps."

#include <bionic/reserved_signals.h>

#include <signal.h>

#include <stdint.h>

#include <string.h>

#include <sys/cdefs.h>

#include <sys/system_properties.h>

#include <sys/types.h>

__BEGIN_DECLS

#define DEBUGGER_SIGNAL BIONIC_SIGNAL_DEBUGGER

static void __attribute__((__unused__)) debuggerd_register_handlers(struct sigaction* action) {

  char value[PROP_VALUE_MAX] = "";

  bool enabled =

      !(__system_property_get("ro.debuggable", value) > 0 && !strcmp(value, "1") &&

        __system_property_get("debug.debuggerd.disable", value) > 0 && !strcmp(value, "1"));

  if (enabled) {

    sigaction(SIGABRT, action, nullptr);

    sigaction(SIGBUS, action, nullptr);

    sigaction(SIGFPE, action, nullptr);

    sigaction(SIGILL, action, nullptr);

    sigaction(SIGSEGV, action, nullptr);

#if defined(SIGSTKFLT)

    sigaction(SIGSTKFLT, action, nullptr);

#endif

    sigaction(SIGSYS, action, nullptr);

    sigaction(SIGTRAP, action, nullptr);

  }

  sigaction(BIONIC_SIGNAL_DEBUGGER, action, nullptr);

}