blob: b742074f037e1bdb8eb6c2e8483adb00343c3776 [file] [log] [blame]
// This is a hack to access CFI interface that Android has in on
// device, but not in the NDK.
#include <dlfcn.h>
#include <stdint.h>
#include <stdlib.h>
typedef void (*cfi_slowpath_ty)(uint64_t, void *);
typedef void (*cfi_slowpath_diag_ty)(uint64_t, void *, void *);
static cfi_slowpath_ty cfi_slowpath;
static cfi_slowpath_diag_ty cfi_slowpath_diag;
__attribute__((constructor(0), no_sanitize("cfi"))) static void init() {
cfi_slowpath = (cfi_slowpath_ty)dlsym(RTLD_NEXT, "__cfi_slowpath");
cfi_slowpath_diag =
(cfi_slowpath_diag_ty)dlsym(RTLD_NEXT, "__cfi_slowpath_diag");
if (!cfi_slowpath || !cfi_slowpath_diag) abort();
extern "C" {
__attribute__((visibility("hidden"), no_sanitize("cfi"))) void __cfi_slowpath(
uint64_t Type, void *Addr) {
cfi_slowpath(Type, Addr);
__attribute__((visibility("hidden"), no_sanitize("cfi"))) void
__cfi_slowpath_diag(uint64_t Type, void *Addr, void *Diag) {
cfi_slowpath_diag(Type, Addr, Diag);