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   char Error[128] = "Scudo ERROR: internal map failure\n";
  28   if (SizeIfOOM) {
  29     formatString(
  30         Error, sizeof(Error),
  31         "Scudo ERROR: internal map failure (NO MEMORY) requesting %zuKB\n",
  32         SizeIfOOM >> 10);
  33   }
  34   reportRawError(Error);
  35 }
  36
  37 void NORETURN reportUnmapError(uptr Addr, uptr Size) {
  38   char Error[128];
  39   formatString(Error, sizeof(Error),
  40                "Scudo ERROR: internal unmap failure (error desc=%s) Addr 0x%zx "
  41                "Size %zu\n",
  42                strerror(errno), Addr, Size);
  43   reportRawError(Error);
  44 }
  45
  46 void NORETURN reportProtectError(uptr Addr, uptr Size, int Prot) {
  47   char Error[128];
  48   formatString(
  49       Error, sizeof(Error),
  50       "Scudo ERROR: internal protect failure (error desc=%s) Addr 0x%zx "
  51       "Size %zu Prot %x\n",
  52       strerror(errno), Addr, Size, Prot);
  53   reportRawError(Error);
  54 }
  55
  56 } // namespace scudo
  57
  58 #endif // SCUDO_LINUX || SCUDO_TRUSTY