[compiler-rt] [compiler-rt] Remove support and workarounds for Android 4 and older (PR #124056)

[via llvm-commits]

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git-clang-format --diff 8110af75b1500be2313e523a2d2da6bb7806b700 e9642f44991c8848d280d08baf362f511362480a --extensions cpp,h -- compiler-rt/lib/asan/tests/asan_test.cpp compiler-rt/lib/lsan/lsan_common_linux.cpp compiler-rt/lib/sanitizer_common/sanitizer_common.h compiler-rt/lib/sanitizer_common/sanitizer_getauxval.h compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/compiler-rt/lib/asan/tests/asan_test.cpp b/compiler-rt/lib/asan/tests/asan_test.cpp
index 23ed2e8061..56377bde1c 100644
--- a/compiler-rt/lib/asan/tests/asan_test.cpp
+++ b/compiler-rt/lib/asan/tests/asan_test.cpp
@@ -1167,7 +1167,7 @@ TEST(AddressSanitizer, DISABLED_StressStackReuseAndExceptionsTest) {
 #if !defined(_WIN32)
 TEST(AddressSanitizer, MlockTest) {
   EXPECT_EQ(0, mlockall(MCL_CURRENT));
-  EXPECT_EQ(0, mlock((void*)0x12345, 0x5678));
+  EXPECT_EQ(0, mlock((void *)0x12345, 0x5678));
   EXPECT_EQ(0, munlockall());
   EXPECT_EQ(0, munlock((void*)0x987, 0x654));
 }
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_getauxval.h b/compiler-rt/lib/sanitizer_common/sanitizer_getauxval.h
index 46ef670ce2..910590b627 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_getauxval.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_getauxval.h
@@ -21,21 +21,21 @@
 
 #if SANITIZER_LINUX || SANITIZER_FUCHSIA
 
-# if (__GLIBC_PREREQ(2, 16) || SANITIZER_ANDROID || SANITIZER_FUCHSIA) &&      \
-     !SANITIZER_GO
-#  define SANITIZER_USE_GETAUXVAL 1
-# else
-#  define SANITIZER_USE_GETAUXVAL 0
-# endif
-
-# if SANITIZER_USE_GETAUXVAL
-#  include <sys/auxv.h>
-# else
+#  if (__GLIBC_PREREQ(2, 16) || SANITIZER_ANDROID || SANITIZER_FUCHSIA) && \
+      !SANITIZER_GO
+#    define SANITIZER_USE_GETAUXVAL 1
+#  else
+#    define SANITIZER_USE_GETAUXVAL 0
+#  endif
+
+#  if SANITIZER_USE_GETAUXVAL
+#    include <sys/auxv.h>
+#  else
 // The weak getauxval definition allows to check for the function at runtime.
 // This is useful for Android, when compiled at a lower API level yet running
 // on a more recent platform that offers the function.
 extern "C" SANITIZER_WEAK_ATTRIBUTE unsigned long getauxval(unsigned long type);
-# endif
+#  endif
 
 #elif SANITIZER_NETBSD
 
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
index 2ea8f1f8e3..a5311d266b 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cpp
@@ -1093,7 +1093,7 @@ CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
 
-#if SANITIZER_LINUX && (SANITIZER_ANDROID || __GLIBC_PREREQ (2, 14))
+#  if SANITIZER_LINUX && (SANITIZER_ANDROID || __GLIBC_PREREQ(2, 14))
 CHECK_TYPE_SIZE(mmsghdr);
 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);

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https://github.com/llvm/llvm-project/pull/124056