ydb-oss sync: add clang16-rt/ to additionalPathsToCopy

3 files changed, 563 insertions, 0 deletions

diff --git a/contrib/libs/clang16-rt/lib/ubsan_minimal/.yandex_meta/licenses.list.txt b/contrib/libs/clang16-rt/lib/ubsan_minimal/.yandex_meta/licenses.list.txt
new file mode 100644
index 0000000000..0dd5fc5a3c
--- /dev/null
+++ b/contrib/libs/clang16-rt/lib/ubsan_minimal/.yandex_meta/licenses.list.txt
@@ -0,0 +1,377 @@
+====================Apache-2.0====================
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+====================Apache-2.0 WITH LLVM-exception====================
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+====================COPYRIGHT====================
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+    if (UNLIKELY(!b))
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+
+====================COPYRIGHT====================
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+
+====================COPYRIGHT====================
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+
+====================COPYRIGHT====================
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+
+
+====================COPYRIGHT====================
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+
+
+====================File: CREDITS.TXT====================
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+project.  If you have contributed a patch or made some other contribution to
+LLVM/CompilerRT, please submit a patch to this file to add yourself, and it will be
+done!
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+The list is sorted by surname and formatted to allow easy grepping and
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+(W), PGP key ID and fingerprint (P), description (D), and snail-mail address
+(S).
+
+N: Craig van Vliet
+E: cvanvliet@auroraux.org
+W: http://www.auroraux.org
+D: Code style and Readability fixes.
+
+N: Edward O'Callaghan
+E: eocallaghan@auroraux.org
+W: http://www.auroraux.org
+D: CMake'ify Compiler-RT build system
+D: Maintain Solaris & AuroraUX ports of Compiler-RT
+
+N: Howard Hinnant
+E: hhinnant@apple.com
+D: Architect and primary author of compiler-rt
+
+N: Guan-Hong Liu
+E: koviankevin@hotmail.com
+D: IEEE Quad-precision functions
+
+N: Joerg Sonnenberger
+E: joerg@NetBSD.org
+D: Maintains NetBSD port.
+
+N: Matt Thomas
+E: matt@NetBSD.org
+D: ARM improvements.
+
+
+====================MIT====================
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+
+====================NCSA====================
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+
+====================NCSA====================
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+SOFTWARE.
+
+
+====================NCSA====================
+University of Illinois/NCSA
+Open Source License
+
+
+====================NCSA AND MIT====================
+The compiler_rt library is dual licensed under both the University of Illinois
+"BSD-Like" license and the MIT license.  As a user of this code you may choose
+to use it under either license.  As a contributor, you agree to allow your code
+to be used under both.
+
+Full text of the relevant licenses is included below.
diff --git a/contrib/libs/clang16-rt/lib/ubsan_minimal/ubsan_minimal_handlers.cpp b/contrib/libs/clang16-rt/lib/ubsan_minimal/ubsan_minimal_handlers.cpp
new file mode 100644
index 0000000000..53a3273e4e
--- /dev/null
+++ b/contrib/libs/clang16-rt/lib/ubsan_minimal/ubsan_minimal_handlers.cpp
@@ -0,0 +1,143 @@
+#include "sanitizer_common/sanitizer_atomic.h"
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifdef KERNEL_USE
+extern "C" void ubsan_message(const char *msg);
+static void message(const char *msg) { ubsan_message(msg); }
+#else
+static void message(const char *msg) {
+  (void)write(2, msg, strlen(msg));
+}
+#endif
+
+static const int kMaxCallerPcs = 20;
+static __sanitizer::atomic_uintptr_t caller_pcs[kMaxCallerPcs];
+// Number of elements in caller_pcs. A special value of kMaxCallerPcs + 1 means
+// that "too many errors" has already been reported.
+static __sanitizer::atomic_uint32_t caller_pcs_sz;
+
+__attribute__((noinline)) static bool report_this_error(uintptr_t caller) {
+  if (caller == 0)
+    return false;
+  while (true) {
+    unsigned sz = __sanitizer::atomic_load_relaxed(&caller_pcs_sz);
+    if (sz > kMaxCallerPcs) return false;  // early exit
+    // when sz==kMaxCallerPcs print "too many errors", but only when cmpxchg
+    // succeeds in order to not print it multiple times.
+    if (sz > 0 && sz < kMaxCallerPcs) {
+      uintptr_t p;
+      for (unsigned i = 0; i < sz; ++i) {
+        p = __sanitizer::atomic_load_relaxed(&caller_pcs[i]);
+        if (p == 0) break;  // Concurrent update.
+        if (p == caller) return false;
+      }
+      if (p == 0) continue;  // FIXME: yield?
+    }
+
+    if (!__sanitizer::atomic_compare_exchange_strong(
+            &caller_pcs_sz, &sz, sz + 1, __sanitizer::memory_order_seq_cst))
+      continue;  // Concurrent update! Try again from the start.
+
+    if (sz == kMaxCallerPcs) {
+      message("ubsan: too many errors\n");
+      return false;
+    }
+    __sanitizer::atomic_store_relaxed(&caller_pcs[sz], caller);
+    return true;
+  }
+}
+
+__attribute__((noinline)) static void decorate_msg(char *buf,
+                                                   uintptr_t caller) {
+  // print the address by nibbles
+  for (unsigned shift = sizeof(uintptr_t) * 8; shift;) {
+    shift -= 4;
+    unsigned nibble = (caller >> shift) & 0xf;
+    *(buf++) = nibble < 10 ? nibble + '0' : nibble - 10 + 'a';
+  }
+  // finish the message
+  buf[0] = '\n';
+  buf[1] = '\0';
+}
+
+#if defined(__ANDROID__)
+extern "C" __attribute__((weak)) void android_set_abort_message(const char *);
+static void abort_with_message(const char *msg) {
+  if (&android_set_abort_message) android_set_abort_message(msg);
+  abort();
+}
+#else
+static void abort_with_message(const char *) { abort(); }
+#endif
+
+#if SANITIZER_DEBUG
+namespace __sanitizer {
+// The DCHECK macro needs this symbol to be defined.
+void NORETURN CheckFailed(const char *file, int, const char *cond, u64, u64) {
+  message("Sanitizer CHECK failed: ");
+  message(file);
+  message(":?? : "); // FIXME: Show line number.
+  message(cond);
+  abort();
+}
+} // namespace __sanitizer
+#endif
+
+#define INTERFACE extern "C" __attribute__((visibility("default")))
+
+// How many chars we need to reserve to print an address.
+constexpr unsigned kAddrBuf = SANITIZER_WORDSIZE / 4;
+#define MSG_TMPL(msg) "ubsan: " msg " by 0x"
+#define MSG_TMPL_END(buf, msg) (buf + sizeof(MSG_TMPL(msg)) - 1)
+// Reserve an additional byte for '\n'.
+#define MSG_BUF_LEN(msg) (sizeof(MSG_TMPL(msg)) + kAddrBuf + 1)
+
+#define HANDLER_RECOVER(name, msg)                               \
+  INTERFACE void __ubsan_handle_##name##_minimal() {             \
+    uintptr_t caller = GET_CALLER_PC();                  \
+    if (!report_this_error(caller)) return;                      \
+    char msg_buf[MSG_BUF_LEN(msg)] = MSG_TMPL(msg);              \
+    decorate_msg(MSG_TMPL_END(msg_buf, msg), caller);            \
+    message(msg_buf);                                            \
+  }
+
+#define HANDLER_NORECOVER(name, msg)                             \
+  INTERFACE void __ubsan_handle_##name##_minimal_abort() {       \
+    char msg_buf[MSG_BUF_LEN(msg)] = MSG_TMPL(msg);              \
+    decorate_msg(MSG_TMPL_END(msg_buf, msg), GET_CALLER_PC());   \
+    message(msg_buf);                                            \
+    abort_with_message(msg_buf);                                 \
+  }
+
+#define HANDLER(name, msg)                                       \
+  HANDLER_RECOVER(name, msg)                                     \
+  HANDLER_NORECOVER(name, msg)
+
+HANDLER(type_mismatch, "type-mismatch")
+HANDLER(alignment_assumption, "alignment-assumption")
+HANDLER(add_overflow, "add-overflow")
+HANDLER(sub_overflow, "sub-overflow")
+HANDLER(mul_overflow, "mul-overflow")
+HANDLER(negate_overflow, "negate-overflow")
+HANDLER(divrem_overflow, "divrem-overflow")
+HANDLER(shift_out_of_bounds, "shift-out-of-bounds")
+HANDLER(out_of_bounds, "out-of-bounds")
+HANDLER_RECOVER(builtin_unreachable, "builtin-unreachable")
+HANDLER_RECOVER(missing_return, "missing-return")
+HANDLER(vla_bound_not_positive, "vla-bound-not-positive")
+HANDLER(float_cast_overflow, "float-cast-overflow")
+HANDLER(load_invalid_value, "load-invalid-value")
+HANDLER(invalid_builtin, "invalid-builtin")
+HANDLER(invalid_objc_cast, "invalid-objc-cast")
+HANDLER(function_type_mismatch, "function-type-mismatch")
+HANDLER(implicit_conversion, "implicit-conversion")
+HANDLER(nonnull_arg, "nonnull-arg")
+HANDLER(nonnull_return, "nonnull-return")
+HANDLER(nullability_arg, "nullability-arg")
+HANDLER(nullability_return, "nullability-return")
+HANDLER(pointer_overflow, "pointer-overflow")
+HANDLER(cfi_check_fail, "cfi-check-fail")
diff --git a/contrib/libs/clang16-rt/lib/ubsan_minimal/ya.make b/contrib/libs/clang16-rt/lib/ubsan_minimal/ya.make
new file mode 100644
index 0000000000..b96cad8579
--- /dev/null
+++ b/contrib/libs/clang16-rt/lib/ubsan_minimal/ya.make
@@ -0,0 +1,43 @@
+# Generated by devtools/yamaker.
+
+INCLUDE(${ARCADIA_ROOT}/build/platform/clang/arch.cmake)
+
+LIBRARY(clang_rt.ubsan_minimal${CLANG_RT_SUFFIX})
+
+LICENSE(
+    Apache-2.0 AND
+    Apache-2.0 WITH LLVM-exception AND
+    MIT AND
+    NCSA
+)
+
+LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
+
+OWNER(g:cpp-contrib)
+
+ADDINCL(
+    contrib/libs/clang16-rt/lib
+)
+
+NO_COMPILER_WARNINGS()
+
+NO_UTIL()
+
+NO_SANITIZE()
+
+CFLAGS(
+    -fno-builtin
+    -fno-exceptions
+    -fno-lto
+    -fno-rtti
+    -fno-stack-protector
+    -fomit-frame-pointer
+    -funwind-tables
+    -fvisibility=hidden
+)
+
+SRCS(
+    ubsan_minimal_handlers.cpp
+)
+
+END()