1 files changed, 80 insertions, 0 deletions
diff --git a/compiler-rt/lib/memprof/memprof_linux.cpp b/compiler-rt/lib/memprof/memprof_linux.cpp
new file mode 100644
index 000000000000..61c833bfdf64
--- /dev/null
+++ b/compiler-rt/lib/memprof/memprof_linux.cpp
@@ -0,0 +1,80 @@
+//===-- memprof_linux.cpp ------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of MemProfiler, a memory profiler.
+//
+// Linux-specific details.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_common/sanitizer_platform.h"
+#if !SANITIZER_LINUX
+#error Unsupported OS
+#endif
+
+#include "memprof_interceptors.h"
+#include "memprof_internal.h"
+#include "memprof_thread.h"
+#include "sanitizer_common/sanitizer_flags.h"
+#include "sanitizer_common/sanitizer_freebsd.h"
+#include "sanitizer_common/sanitizer_libc.h"
+#include "sanitizer_common/sanitizer_procmaps.h"
+
+#include <dlfcn.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <link.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/ucontext.h>
+#include <unistd.h>
+#include <unwind.h>
+
+extern ElfW(Dyn) _DYNAMIC[];
+
+typedef enum {
+  MEMPROF_RT_VERSION_UNDEFINED = 0,
+  MEMPROF_RT_VERSION_DYNAMIC,
+  MEMPROF_RT_VERSION_STATIC,
+} memprof_rt_version_t;
+
+// FIXME: perhaps also store abi version here?
+extern "C" {
+SANITIZER_INTERFACE_ATTRIBUTE
+memprof_rt_version_t __memprof_rt_version;
+}
+
+namespace __memprof {
+
+void InitializePlatformInterceptors() {}
+void InitializePlatformExceptionHandlers() {}
+
+void *MemprofDoesNotSupportStaticLinkage() {
+  // This will fail to link with -static.
+  return &_DYNAMIC;
+}
+
+uptr FindDynamicShadowStart() {
+  uptr shadow_size_bytes = MemToShadowSize(kHighMemEnd);
+  return MapDynamicShadow(shadow_size_bytes, SHADOW_SCALE,
+                          /*min_shadow_base_alignment*/ 0, kHighMemEnd);
+}
+
+void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
+  ucontext_t *ucp = (ucontext_t *)context;
+  *stack = (uptr)ucp->uc_stack.ss_sp;
+  *ssize = ucp->uc_stack.ss_size;
+}
+
+void *MemprofDlSymNext(const char *sym) { return dlsym(RTLD_NEXT, sym); }
+
+} // namespace __memprof