99d92d18e3
While running into failures on unmap calls, it becomes difficult to figure out what's wrong. Break the dieOnMapUnmapError into specific versions for map, unmap, and then one for mprotect. Also, put these in a common linux space so that all linux derived code can reuse this code.
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
//===-- report_linux.cpp ----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "platform.h"
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#if SCUDO_LINUX || SCUDO_TRUSTY
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#include "common.h"
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#include "internal_defs.h"
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#include "report.h"
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#include "report_linux.h"
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#include "string_utils.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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namespace scudo {
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// Fatal internal map() error (potentially OOM related).
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void NORETURN reportMapError(uptr SizeIfOOM) {
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char Error[128] = "Scudo ERROR: internal map failure\n";
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if (SizeIfOOM) {
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formatString(
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Error, sizeof(Error),
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"Scudo ERROR: internal map failure (NO MEMORY) requesting %zuKB\n",
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SizeIfOOM >> 10);
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}
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reportRawError(Error);
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}
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void NORETURN reportUnmapError(uptr Addr, uptr Size) {
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char Error[128];
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formatString(Error, sizeof(Error),
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"Scudo ERROR: internal unmap failure (error desc=%s) Addr 0x%zx "
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"Size %zu\n",
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strerror(errno), Addr, Size);
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reportRawError(Error);
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}
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void NORETURN reportProtectError(uptr Addr, uptr Size, int Prot) {
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char Error[128];
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formatString(
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Error, sizeof(Error),
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"Scudo ERROR: internal protect failure (error desc=%s) Addr 0x%zx "
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"Size %zu Prot %x\n",
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strerror(errno), Addr, Size, Prot);
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reportRawError(Error);
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}
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} // namespace scudo
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#endif // SCUDO_LINUX || SCUDO_TRUSTY
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