34 lines
934 B
C
34 lines
934 B
C
// Test shadow faults during esan initialization as well as
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// faults during dlsym's calloc during interceptor init.
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//
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// RUN: %clang_esan_wset %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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// Our goal is to emulate an instrumented allocator, whose calloc
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// invoked from dlsym will trigger shadow faults, to test an
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// early shadow fault during esan interceptor init.
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// We do this by replacing calloc:
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void *calloc(size_t size, size_t n) {
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// Unfortunately we can't print anything to make the test
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// ensure we got here b/c the sanitizer interceptors can't
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// handle that during interceptor init.
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// Ensure we trigger a shadow write fault:
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int x[16];
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x[0] = size;
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// Now just emulate calloc.
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void *res = malloc(size*n);
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memset(res, 0, size*n);
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return res;
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}
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int main(int argc, char **argv) {
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printf("all done\n");
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return 0;
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}
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// CHECK: all done
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