[Esan] Port cache frag to FreeBSD

Data involving struct accesses accounting work (plan to support only efficiency-cache-frag flag in the frontend side).

Reviewers: krytarowski, vitalybuka, jfb

Reviewed By : vitalybuka

Differential Revision: https://reviews.llvm.org/D52608

llvm-svn: 343812

compiler-rt/cmake/config-ix.cmake

@@ -625,7 +625,7 @@ else()
 endif()
 
 if (COMPILER_RT_HAS_SANITIZER_COMMON AND ESAN_SUPPORTED_ARCH AND
-    OS_NAME MATCHES "Linux")
+    OS_NAME MATCHES "Linux|FreeBSD")
   set(COMPILER_RT_HAS_ESAN TRUE)
 else()
   set(COMPILER_RT_HAS_ESAN FALSE)

compiler-rt/lib/esan/CMakeLists.txt

@@ -14,6 +14,7 @@ set(ESAN_SOURCES
   esan_interceptors.cpp
   esan_linux.cpp
   esan_sideline_linux.cpp
+  esan_sideline_bsd.cpp
   cache_frag.cpp
   working_set.cpp
   working_set_posix.cpp)

compiler-rt/lib/esan/esan_interceptors.cpp

@@ -327,7 +327,7 @@ INTERCEPTOR(int, rmdir, char *path) {
 // Signal-related interceptors
 //===----------------------------------------------------------------------===//
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX || SANITIZER_FREEBSD
 typedef void (*signal_handler_t)(int);
 INTERCEPTOR(signal_handler_t, signal, int signum, signal_handler_t handler) {
   void *ctx;
@@ -344,7 +344,7 @@ INTERCEPTOR(signal_handler_t, signal, int signum, signal_handler_t handler) {
 #define ESAN_MAYBE_INTERCEPT_SIGNAL
 #endif
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX || SANITIZER_FREEBSD
 DECLARE_REAL(int, sigaction, int signum, const struct sigaction *act,
              struct sigaction *oldact)
 INTERCEPTOR(int, sigaction, int signum, const struct sigaction *act,
@@ -363,7 +363,11 @@ int real_sigaction(int signum, const void *act, void *oldact) {
   if (REAL(sigaction) == nullptr) {
     // With an instrumented allocator, this is called during interceptor init
     // and we need a raw syscall solution.
+#if SANITIZER_LINUX
     return internal_sigaction_syscall(signum, act, oldact);
+#else
+    return internal_sigaction(signum, act, oldact);
+#endif
   }
   return REAL(sigaction)(signum, (const struct sigaction *)act,
                          (struct sigaction *)oldact);
@@ -376,7 +380,7 @@ int real_sigaction(int signum, const void *act, void *oldact) {
 #define ESAN_MAYBE_INTERCEPT_SIGACTION
 #endif
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX || SANITIZER_FREEBSD
 INTERCEPTOR(int, sigprocmask, int how, __sanitizer_sigset_t *set,
             __sanitizer_sigset_t *oldset) {
   void *ctx;

compiler-rt/lib/esan/esan_shadow.h

@@ -30,7 +30,7 @@ struct ApplicationRegion {
   bool ShadowMergedWithPrev;
 };
 
-#if SANITIZER_LINUX && defined(__x86_64__)
+#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && defined(__x86_64__)
 // Linux x86_64
 //
 // Application memory falls into these 5 regions (ignoring the corner case

compiler-rt/lib/sanitizer_common/sanitizer_linux.cc

@@ -906,8 +906,18 @@ bool internal_sigismember(__sanitizer_sigset_t *set, int signum) {
   const uptr bit = signum % (sizeof(k_set->sig[0]) * 8);
   return k_set->sig[idx] & (1 << bit);
 }
-#endif  // SANITIZER_LINUX
-#endif  // !SANITIZER_SOLARIS && !SANITIZER_NETBSD
+#elif SANITIZER_FREEBSD
+void internal_sigdelset(__sanitizer_sigset_t *set, int signum) {
+  sigset_t *rset = reinterpret_cast<sigset_t *>(set);
+  sigdelset(rset, signum);
+}
+
+bool internal_sigismember(__sanitizer_sigset_t *set, int signum) {
+  sigset_t *rset = reinterpret_cast<sigset_t *>(set);
+  return sigismember(rset, signum);
+}
+#endif
+#endif // !SANITIZER_SOLARIS
 
 #if !SANITIZER_NETBSD
 // ThreadLister implementation.

compiler-rt/lib/sanitizer_common/sanitizer_linux.h

@@ -69,6 +69,8 @@ void internal_sigdelset(__sanitizer_sigset_t *set, int signum);
 uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
                     int *parent_tidptr, void *newtls, int *child_tidptr);
 #endif
+#elif SANITIZER_FREEBSD
+void internal_sigdelset(__sanitizer_sigset_t *set, int signum);
 #endif  // SANITIZER_LINUX
 
 // This class reads thread IDs from /proc/<pid>/task using only syscalls.

compiler-rt/test/esan/TestCases/large-stack-linux.c

@@ -1,5 +1,7 @@
 // RUN: %clang_esan_wset -O0 %s -o %t 2>&1
 // RUN: %env_esan_opts="verbosity=1 record_snapshots=0" %run %t %t 2>&1 | FileCheck %s
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <assert.h>
 #include <stdio.h>

compiler-rt/test/esan/TestCases/workingset-early-fault.c

@@ -3,6 +3,8 @@
 //
 // RUN: %clang_esan_wset %s -o %t
 // RUN: %run %t 2>&1 | FileCheck %s
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <stdio.h>
 #include <stdlib.h>

compiler-rt/test/esan/TestCases/workingset-memset.cpp

@@ -1,5 +1,7 @@
 // RUN: %clang_esan_wset -O0 %s -o %t 2>&1
 // RUN: %run %t 2>&1 | FileCheck %s
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <stdlib.h>
 #include <string.h>

compiler-rt/test/esan/TestCases/workingset-midreport.cpp

@@ -6,6 +6,8 @@
 
 // FIXME: Re-enable once PR33590 is fixed.
 // UNSUPPORTED: x86_64
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <sanitizer/esan_interface.h>
 #include <sched.h>

compiler-rt/test/esan/TestCases/workingset-samples.cpp

@@ -3,6 +3,8 @@
 
 // FIXME: Re-enable once PR33590 is fixed.
 // UNSUPPORTED: x86_64
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <sanitizer/esan_interface.h>
 #include <sched.h>

compiler-rt/test/esan/TestCases/workingset-signal-posix.cpp

@@ -1,5 +1,7 @@
 // RUN: %clang_esan_wset -O0 %s -o %t 2>&1
 // RUN: %run %t 2>&1 | FileCheck %s
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <assert.h>
 #include <setjmp.h>

compiler-rt/test/esan/TestCases/workingset-simple.cpp

@@ -3,6 +3,8 @@
 
 // FIXME: Re-enable once PR33590 is fixed.
 // UNSUPPORTED: x86_64
+// Stucks at init and no clone feature equivalent.
+// UNSUPPORTED: freebsd
 
 #include <stdlib.h>
 #include <string.h>

compiler-rt/test/esan/lit.cfg

@@ -39,6 +39,5 @@ config.substitutions.append(('%env_esan_opts=',
 # Default test suffixes.
 config.suffixes = ['.c', '.cpp']
 
-# EfficiencySanitizer tests are currently supported on Linux x86-64 only.
-if config.host_os not in ['Linux'] or config.target_arch not in ['x86_64', 'mips64'] :
+if config.host_os not in ['Linux', 'FreeBSD'] or config.target_arch not in ['x86_64', 'mips64'] :
   config.unsupported = True