vendor/compiler-rt/compiler-rt-trunk-r375505vendor/compiler-rt

1 files changed, 115 insertions, 0 deletions

diff --git a/lib/sanitizer_common/sanitizer_openbsd.cpp b/lib/sanitizer_common/sanitizer_openbsd.cpp
new file mode 100644
index 000000000000..ed2d8edeb7a2
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_openbsd.cpp
@@ -0,0 +1,115 @@
+//===-- sanitizer_openbsd.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 shared between various sanitizers' runtime libraries and
+// implements Solaris-specific functions.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_platform.h"
+#if SANITIZER_OPENBSD
+
+#include <stdio.h>
+
+#include "sanitizer_common.h"
+#include "sanitizer_flags.h"
+#include "sanitizer_internal_defs.h"
+#include "sanitizer_libc.h"
+#include "sanitizer_placement_new.h"
+#include "sanitizer_platform_limits_posix.h"
+#include "sanitizer_procmaps.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/shm.h>
+#include <sys/sysctl.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+extern char **environ;
+
+namespace __sanitizer {
+
+uptr internal_mmap(void *addr, size_t length, int prot, int flags, int fd,
+                   u64 offset) {
+  return (uptr)mmap(addr, length, prot, flags, fd, offset);
+}
+
+uptr internal_munmap(void *addr, uptr length) { return munmap(addr, length); }
+
+int internal_mprotect(void *addr, uptr length, int prot) {
+  return mprotect(addr, length, prot);
+}
+
+int internal_sysctlbyname(const char *sname, void *oldp, uptr *oldlenp,
+                          const void *newp, uptr newlen) {
+  Printf("internal_sysctlbyname not implemented for OpenBSD");
+  Die();
+  return 0;
+}
+
+uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
+  // On OpenBSD we cannot get the full path
+  struct kinfo_proc kp;
+  uptr kl;
+  const int Mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid()};
+  if (internal_sysctl(Mib, ARRAY_SIZE(Mib), &kp, &kl, NULL, 0) != -1)
+    return internal_snprintf(buf,
+                             (KI_MAXCOMLEN < buf_len ? KI_MAXCOMLEN : buf_len),
+                             "%s", kp.p_comm);
+  return (uptr)0;
+}
+
+static void GetArgsAndEnv(char ***argv, char ***envp) {
+  uptr nargv;
+  uptr nenv;
+  int argvmib[4] = {CTL_KERN, KERN_PROC_ARGS, getpid(), KERN_PROC_ARGV};
+  int envmib[4] = {CTL_KERN, KERN_PROC_ARGS, getpid(), KERN_PROC_ENV};
+  if (internal_sysctl(argvmib, 4, NULL, &nargv, NULL, 0) == -1) {
+    Printf("sysctl KERN_PROC_NARGV failed\n");
+    Die();
+  }
+  if (internal_sysctl(envmib, 4, NULL, &nenv, NULL, 0) == -1) {
+    Printf("sysctl KERN_PROC_NENV failed\n");
+    Die();
+  }
+  if (internal_sysctl(argvmib, 4, &argv, &nargv, NULL, 0) == -1) {
+    Printf("sysctl KERN_PROC_ARGV failed\n");
+    Die();
+  }
+  if (internal_sysctl(envmib, 4, &envp, &nenv, NULL, 0) == -1) {
+    Printf("sysctl KERN_PROC_ENV failed\n");
+    Die();
+  }
+}
+
+char **GetArgv() {
+  char **argv, **envp;
+  GetArgsAndEnv(&argv, &envp);
+  return argv;
+}
+
+char **GetEnviron() {
+  char **argv, **envp;
+  GetArgsAndEnv(&argv, &envp);
+  return envp;
+}
+
+void ReExec() {
+  UNIMPLEMENTED();
+}
+
+}  // namespace __sanitizer
+
+#endif  // SANITIZER_OPENBSD