[msan] Remove MSanDR and supporting code.

MSanDR is a dynamic instrumentation tool that can instrument the code
(prebuilt libraries and such) that could not be instrumented at compile time.

This code is unused (to the best of our knowledge) and unmaintained, and
starting to bit-rot.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@222232 91177308-0d34-0410-b5e6-96231b3b80d8

8 files changed, 0 insertions, 262 deletions

diff --git a/test/msan/wrap_indirect_calls.cc b/test/msan/wrap_indirect_calls.cc
deleted file mode 100644
index be17bd824..000000000
--- a/test/msan/wrap_indirect_calls.cc
+++ /dev/null
@@ -1,64 +0,0 @@
-// Test indirect call wrapping in MemorySanitizer.
-
-// RUN: %clangxx_msan -O0 %p/wrap_indirect_calls/two.cc -fPIC -shared -o %t-two-so.so
-// RUN: %clangxx_msan -O0 %p/wrap_indirect_calls/wrapper.cc -fPIC -shared -o %t-wrapper-so.so
-
-// Disable fast path.
-
-// RUN: %clangxx_msan -O0 %p/wrap_indirect_calls/caller.cc %p/wrap_indirect_calls/one.cc %s \
-// RUN:     %t-two-so.so %t-wrapper-so.so \
-// RUN:     -mllvm -msan-wrap-indirect-calls=wrapper \
-// RUN:     -mllvm -msan-wrap-indirect-calls-fast=0 \
-// RUN:     -DSLOW=1 \
-// RUN:     -Wl,--defsym=__executable_start=0 -o %t
-// RUN: %run %t
-
-// Enable fast path, call from executable, -O0.
-
-// RUN: %clangxx_msan -O0 %p/wrap_indirect_calls/caller.cc %p/wrap_indirect_calls/one.cc %s \
-// RUN:     %t-two-so.so %t-wrapper-so.so \
-// RUN:     -mllvm -msan-wrap-indirect-calls=wrapper \
-// RUN:     -mllvm -msan-wrap-indirect-calls-fast=1 \
-// RUN:     -DSLOW=0 \
-// RUN:     -Wl,--defsym=__executable_start=0 -o %t
-// RUN: %run %t
-
-// Enable fast path, call from executable, -O3.
-
-// RUN: %clangxx_msan -O3 %p/wrap_indirect_calls/caller.cc %p/wrap_indirect_calls/one.cc %s \
-// RUN:     %t-two-so.so %t-wrapper-so.so \
-// RUN:     -mllvm -msan-wrap-indirect-calls=wrapper \
-// RUN:     -mllvm -msan-wrap-indirect-calls-fast=1 \
-// RUN:     -DSLOW=0 \
-// RUN:     -Wl,--defsym=__executable_start=0 -o %t
-// RUN: %run %t
-
-// Enable fast path, call from DSO, -O0.
-
-// RUN: %clangxx_msan -O0 %p/wrap_indirect_calls/caller.cc %p/wrap_indirect_calls/one.cc -shared \
-// RUN:     %t-two-so.so %t-wrapper-so.so \
-// RUN:     -mllvm -msan-wrap-indirect-calls=wrapper \
-// RUN:     -mllvm -msan-wrap-indirect-calls-fast=1 \
-// RUN:     -DSLOW=0 \
-// RUN:     -Wl,--defsym=__executable_start=0 -o %t-caller-so.so
-// RUN: %clangxx_msan -O0 %s %t-caller-so.so %t-two-so.so %t-wrapper-so.so -o %t
-// RUN: %run %t
-
-// Enable fast path, call from DSO, -O3.
-
-// RUN: %clangxx_msan -O3 %p/wrap_indirect_calls/caller.cc %p/wrap_indirect_calls/one.cc -shared \
-// RUN:     %t-two-so.so %t-wrapper-so.so \
-// RUN:     -mllvm -msan-wrap-indirect-calls=wrapper \
-// RUN:     -mllvm -msan-wrap-indirect-calls-fast=1 \
-// RUN:     -DSLOW=0 \
-// RUN:     -Wl,--defsym=__executable_start=0 -o %t-caller-so.so
-// RUN: %clangxx_msan -O3 %s %t-caller-so.so %t-two-so.so %t-wrapper-so.so -o %t
-// RUN: %run %t
-
-// The actual test is in multiple files in wrap_indirect_calls/ directory.
-void run_test();
-
-int main() {
-  run_test();
-  return 0;
-}
diff --git a/test/msan/wrap_indirect_calls/caller.cc b/test/msan/wrap_indirect_calls/caller.cc
deleted file mode 100644
index a0af8b7bb..000000000
--- a/test/msan/wrap_indirect_calls/caller.cc
+++ /dev/null
@@ -1,51 +0,0 @@
-// Indirectly call a bunch of functions.
-
-#include <assert.h>
-
-extern int cnt;
-
-typedef int (*F)(int, int);
-
-// A function in the same object.
-int f_local(int x, int y) {
-  return x + y;
-}
-
-// A function in another object.
-int f_other_object(int x, int y);
-
-// A function in another DSO.
-int f_dso(int x, int y);
-
-// A function in another DSO that is replaced by the wrapper.
-int f_replaced(int x, int y);
-
-void run_test(void) {
-  int x;
-  int expected_cnt = 0;
-  volatile F f;
-
-  if (SLOW) ++expected_cnt;
-  f = &f_local;
-  x = f(1, 2);
-  assert(x == 3);
-  assert(cnt == expected_cnt);
-
-  if (SLOW) ++expected_cnt;
-  f = &f_other_object;
-  x = f(2, 3);
-  assert(x == 6);
-  assert(cnt == expected_cnt);
-
-  ++expected_cnt;
-  f = &f_dso;
-  x = f(2, 3);
-  assert(x == 7);
-  assert(cnt == expected_cnt);
-
-  ++expected_cnt;
-  f = &f_replaced;
-  x = f(2, 3);
-  assert(x == 11);
-  assert(cnt == expected_cnt);
-}
diff --git a/test/msan/wrap_indirect_calls/lit.local.cfg b/test/msan/wrap_indirect_calls/lit.local.cfg
deleted file mode 100644
index 5e01230c0..000000000
--- a/test/msan/wrap_indirect_calls/lit.local.cfg
+++ /dev/null
@@ -1,3 +0,0 @@
-# Sources in this directory are used by tests in parent directory.
-
-config.suffixes = []
diff --git a/test/msan/wrap_indirect_calls/one.cc b/test/msan/wrap_indirect_calls/one.cc
deleted file mode 100644
index ab7bf4125..000000000
--- a/test/msan/wrap_indirect_calls/one.cc
+++ /dev/null
@@ -1,3 +0,0 @@
-int f_other_object(int x, int y) {
-  return x * y;
-}
diff --git a/test/msan/wrap_indirect_calls/two.cc b/test/msan/wrap_indirect_calls/two.cc
deleted file mode 100644
index c939a993b..000000000
--- a/test/msan/wrap_indirect_calls/two.cc
+++ /dev/null
@@ -1,11 +0,0 @@
-int f_dso(int x, int y) {
-  return 2 * x + y;
-}
-
-int f_replaced(int x, int y) {
-  return x + y + 5;
-}
-
-int f_replacement(int x, int y) {
-  return x + y + 6;
-}
diff --git a/test/msan/wrap_indirect_calls/wrapper.cc b/test/msan/wrap_indirect_calls/wrapper.cc
deleted file mode 100644
index 8fcd0c635..000000000
--- a/test/msan/wrap_indirect_calls/wrapper.cc
+++ /dev/null
@@ -1,11 +0,0 @@
-int f_replaced(int x, int y);
-int f_replacement(int x, int y);
-
-int cnt;
-
-extern "C" void *wrapper(void *p) {
-  ++cnt;
-  if (p == (void *)f_replaced)
-    return (void *)f_replacement;
-  return p;
-}
diff --git a/test/msan/wrap_indirect_calls2.cc b/test/msan/wrap_indirect_calls2.cc
deleted file mode 100644
index fb4e6c798..000000000
--- a/test/msan/wrap_indirect_calls2.cc
+++ /dev/null
@@ -1,42 +0,0 @@
-// Test __msan_set_indirect_call_wrapper.
-
-// RUN: %clangxx_msan -mllvm -msan-wrap-indirect-calls=__msan_wrap_indirect_call \
-// RUN:     -mllvm -msan-wrap-indirect-calls-fast=0 \
-// RUN:     -O0 -g -rdynamic -Wl,--defsym=__executable_start=0 %s -o %t && %run %t
-
-// This test disables -msan-wrap-indirect-calls-fast, otherwise indirect calls
-// inside the same module are short-circuited and are never seen by the wrapper.
-
-#include <assert.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdint.h>
-
-extern "C" void __msan_set_indirect_call_wrapper(uintptr_t);
-
-bool done_f, done_g;
-
-void f(void) {
-  assert(!done_g);
-  done_f = true;
-}
-
-void g(void) {
-  assert(done_f);
-  done_g = true;
-}
-
-typedef void (*Fn)(void);
-extern "C" Fn my_wrapper(Fn target) {
-  if (target == f) return g;
-  return target;
-}
-
-int main(void) {
-  volatile Fn fp;
-  fp = &f;
-  fp();
-  __msan_set_indirect_call_wrapper((uintptr_t)my_wrapper);
-  fp();
-  return !(done_f && done_g);
-}
diff --git a/test/msan/wrap_indirect_calls_in_rtl.cc b/test/msan/wrap_indirect_calls_in_rtl.cc
deleted file mode 100644
index 58e80045e..000000000
--- a/test/msan/wrap_indirect_calls_in_rtl.cc
+++ /dev/null
@@ -1,77 +0,0 @@
-// Test indirect call wrapping in MemorySanitizer runtime.
-
-// RUN: %clangxx_msan -O0 -g -rdynamic %s -o %t && %run %t
-// RUN: %clangxx_msan -O2 -g -rdynamic %s -o %t && %run %t
-
-#include <assert.h>
-#include <dlfcn.h>
-#include <math.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <sys/time.h>
-
-extern "C" void __msan_set_indirect_call_wrapper(uintptr_t);
-
-bool pthread_create_done;
-
-void *ThreadFn(void *) {
-  printf("bad threadfn\n");
-  return 0;
-}
-
-void *ThreadFn2(void *) {
-  printf("good threadfn\n");
-  pthread_create_done = true;
-  return 0;
-}
-
-int my_gettimeofday(struct timeval *p, void *q) {
-  p->tv_sec = 1;
-  p->tv_usec = 2;
-  return 42;
-}
-
-double my_lgamma(double x) {
-  return x;
-}
-
-uintptr_t real_gettimeofday;
-uintptr_t real_lgamma;
-
-extern "C" uintptr_t my_wrapper(uintptr_t f) {
-  if (f == (uintptr_t)ThreadFn) return (uintptr_t)&ThreadFn2;
-  if (f == real_gettimeofday) return (uintptr_t)my_gettimeofday;
-  if (f == real_lgamma) return (uintptr_t)my_lgamma;
-  return f;
-}
-
-int main(void) {
-  real_gettimeofday = (uintptr_t)dlsym(RTLD_NEXT, "gettimeofday");
-  real_lgamma = (uintptr_t)dlsym(RTLD_NEXT, "lgamma");
-
-  __msan_set_indirect_call_wrapper((uintptr_t)my_wrapper);
-
-  // ThreadFn is called indirectly from a wrapper function in MSan rtl and
-  // is subject to indirect call wrapping (it could be an native-to-translated
-  // edge).
-  pthread_t t;
-  pthread_create(&t, 0, ThreadFn, 0);
-  pthread_join(t, 0);
-  assert(pthread_create_done);
-
-  // gettimeofday is intercepted in msan_interceptors.cc and the real one (from
-  // libc) is called indirectly.
-  struct timeval tv;
-  int res = gettimeofday(&tv, NULL);
-  assert(tv.tv_sec == 1);
-  assert(tv.tv_usec == 2);
-  assert(res == 42);
-
-  // lgamma is intercepted in sanitizer_common_interceptors.inc and is also
-  // called indirectly.
-  double dres = lgamma(1.1);
-  assert(dres == 1.1);
-  
-  return 0;
-}