compiler-rt/lib/scudo/standalone/report_linux.cpp

   1 //===-- report_linux.cpp ----------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "platform.h"
  10
  11 #if SCUDO_LINUX || SCUDO_TRUSTY
  12
  13 #include "common.h"
  14 #include "internal_defs.h"
  15 #include "report.h"
  16 #include "report_linux.h"
  17 #include "string_utils.h"
  18
  19 #include <errno.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 namespace scudo {
  24
  25 // Fatal internal map() error (potentially OOM related).
  26 void NORETURN reportMapError(uptr SizeIfOOM) {
  27   ScopedString Error;
  28   Error.append("Scudo ERROR: internal map failure (error desc=%s)",
  29                strerror(errno));
  30   if (SizeIfOOM)
  31     Error.append(" requesting %zuKB", SizeIfOOM >> 10);
  32   Error.append("\n");
  33   reportRawError(Error.data());
  34 }
  35
  36 void NORETURN reportUnmapError(uptr Addr, uptr Size) {
  37   ScopedString Error;
  38   Error.append("Scudo ERROR: internal unmap failure (error desc=%s) Addr 0x%zx "
  39                "Size %zu\n",
  40                strerror(errno), Addr, Size);
  41   reportRawError(Error.data());
  42 }
  43
  44 void NORETURN reportProtectError(uptr Addr, uptr Size, int Prot) {
  45   ScopedString Error;
  46   Error.append(
  47       "Scudo ERROR: internal protect failure (error desc=%s) Addr 0x%zx "
  48       "Size %zu Prot %x\n",
  49       strerror(errno), Addr, Size, Prot);
  50   reportRawError(Error.data());
  51 }
  52
  53 } // namespace scudo
  54
  55 #endif // SCUDO_LINUX || SCUDO_TRUSTY