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[asan] Fix ASan internal failure in AllocateFromLocalPool
This patch addresses PR 33206. There might be a situation when dynamic ASan runtime initializes later than shared library which has malloc in static constructor (rtld doesn't provide an order of shared libs initialization). In this case ASan hasn't yet initialized interceptors, but already intercepts malloc. If malloc is too big to be handled by static local pool, ASan will die with error: Sanitizer CHECK failed: lib/asan/asan_malloc_linux.cc:40 ((allocated_for_dlsym)) < ((kDlsymAllocPoolSize)) (1036, 1024) Patch by Denis Khalikov. Differential Revision: https://reviews.llvm.org/D33784 llvm-svn: 305058
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compiler-rt/test/asan/TestCases/Linux/asan_preload_test-3.cc
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// Regression test for PR33206 | ||
// | ||
// RUN: %clang -DDYN=1 -DMALLOC=1 -fPIC -shared %s -o %t-dso1.so | ||
// RUN: %clang -DDYN=1 -DMALLOC=1 -fPIC -shared %s -o %t-dso2.so %t-dso1.so | ||
// RUN: %clang %s -o %t-1 %t-dso2.so | ||
// RUN: env LD_PRELOAD=%shared_libasan %run %t-1 2>&1 | FileCheck %s | ||
// RUN: %clang -DDYN=1 -DREALLOC=1 -fPIC -shared %s -o %t-dso3.so | ||
// RUN: %clang -DDYN=1 -DREALLOC=1 -fPIC -shared %s -o %t-dso4.so %t-dso3.so | ||
// RUN: %clang %s -o %t-2 %t-dso4.so | ||
// RUN: env LD_PRELOAD=%shared_libasan %run %t-2 2>&1 | FileCheck %s | ||
// REQUIRES: asan-dynamic-runtime | ||
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#include <stdlib.h> | ||
#include <stdio.h> | ||
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#ifdef DYN | ||
__attribute__((constructor)) void foo() { | ||
void *p; | ||
#ifdef MALLOC | ||
p = malloc(1 << 20); | ||
#endif | ||
#ifdef REALLOC | ||
p = realloc (0, 1 << 20); | ||
#endif | ||
free(p); | ||
} | ||
#else | ||
int main() { | ||
// CHECK: Success | ||
printf("Success\n"); | ||
return 0; | ||
} | ||
#endif |