707894b092
Summary: Currently, the Scudo Hardened Allocator only gets its flags via the SCUDO_OPTIONS environment variable. With this patch, we offer the opportunity for programs to define their own options via __scudo_default_options() which behaves like __asan_default_options() (weak symbol). A relevant test has been added as well, and the documentation updated accordingly. I also used this patch as an opportunity to rename a few variables to comply with the LLVM naming scheme, and replaced a use of Report with dieWithMessage for consistency (and to avoid a callback). Reviewers: llvm-commits, kcc Differential Revision: https://reviews.llvm.org/D23018 llvm-svn: 277536
26 lines
718 B
C++
26 lines
718 B
C++
// RUN: %clang_scudo %s -o %t
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// RUN: %run %t 2>&1
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// RUN: SCUDO_OPTIONS=DeallocationTypeMismatch=0 %run %t 2>&1
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// RUN: SCUDO_OPTIONS=DeallocationTypeMismatch=1 not %run %t 2>&1 | FileCheck %s
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// Tests that the options can be passed using getScudoDefaultOptions, and that
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// the environment ones take precedence over them.
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#include <stdlib.h>
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#include <malloc.h>
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extern "C" const char* __scudo_default_options() {
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return "DeallocationTypeMismatch=0"; // Defaults to true in scudo_flags.inc.
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}
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int main(int argc, char **argv)
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{
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int *p = (int *)malloc(16);
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if (!p)
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return 1;
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delete p;
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return 0;
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}
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// CHECK: ERROR: allocation type mismatch on address
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