3d7fbb052f
Summary: Enabling the memory sanitizer support for FreeBSD, most of unit tests are compatible. - Adding fstat and stressor_r interceptors. - Updating the struct link_map access since most likely the struct Obj_Entry had been updated since. - Disabling few unit tests until further work is needed (or we can assume it can work in real world code). Patch by: David CARLIER Reviewers: vitalybuka, krytarowski Reviewed By: vitalybuka Subscribers: eugenis, dim, srhines, emaste, kubamracek, mgorny, fedor.sergeev, hintonda, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D43080 llvm-svn: 326644
39 lines
993 B
C++
39 lines
993 B
C++
// RUN: %clangxx_msan -O0 %s -o %t && %run %t
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// Check that strlen() and similar intercepted functions can be called on shadow
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// memory.
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// The mem_to_shadow's part might need rework
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// XFAIL: freebsd
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#include <assert.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "test.h"
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const char *mem_to_shadow(const char *p) {
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#if defined(__x86_64__)
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return (char *)((uintptr_t)p ^ 0x500000000000ULL);
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#elif defined (__mips64)
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return (char *)((uintptr_t)p ^ 0x8000000000ULL);
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#elif defined(__powerpc64__)
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#define LINEARIZE_MEM(mem) \
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(((uintptr_t)(mem) & ~0x200000000000ULL) ^ 0x100000000000ULL)
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return (char *)(LINEARIZE_MEM(p) + 0x080000000000ULL);
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#elif defined(__aarch64__)
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return (char *)((uintptr_t)p ^ 0x6000000000ULL);
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#endif
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}
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int main(void) {
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const char *s = "abcdef";
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assert(strlen(s) == 6);
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assert(strlen(mem_to_shadow(s)) == 0);
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char *t = new char[42];
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t[41] = 0;
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assert(strlen(mem_to_shadow(t)) == 41);
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return 0;
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}
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