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authorDimitry Andric <dim@FreeBSD.org>2015-12-30 11:52:19 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-12-30 11:52:19 +0000
commit5c909fa013fc285f010a95e8d387e0ef3412da9c (patch)
tree1059d068ad281f4776ff44cd414574f99a460023 /test/asan/TestCases/dlclose-test.cc
parentf31bcc68c72371a2bf63aead9f3373a1ff2053b6 (diff)
downloadsrc-5c909fa013fc285f010a95e8d387e0ef3412da9c.tar.gz
src-5c909fa013fc285f010a95e8d387e0ef3412da9c.zip
Vendor import of compiler-rt trunk r256633:vendor/compiler-rt/compiler-rt-trunk-r256633
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=292925 svn path=/vendor/compiler-rt/compiler-rt-trunk-r256633/; revision=292926; tag=vendor/compiler-rt/compiler-rt-trunk-r256633
Diffstat (limited to 'test/asan/TestCases/dlclose-test.cc')
-rw-r--r--test/asan/TestCases/dlclose-test.cc106
1 files changed, 0 insertions, 106 deletions
diff --git a/test/asan/TestCases/dlclose-test.cc b/test/asan/TestCases/dlclose-test.cc
deleted file mode 100644
index 369abd3127cc..000000000000
--- a/test/asan/TestCases/dlclose-test.cc
+++ /dev/null
@@ -1,106 +0,0 @@
-// Regression test for
-// http://code.google.com/p/address-sanitizer/issues/detail?id=19
-// Bug description:
-// 1. application dlopens foo.so
-// 2. asan registers all globals from foo.so
-// 3. application dlcloses foo.so
-// 4. application mmaps some memory to the location where foo.so was before
-// 5. application starts using this mmaped memory, but asan still thinks there
-// are globals.
-// 6. BOOM
-
-// This sublte test assumes that after a foo.so is dlclose-d
-// we can mmap the region of memory that has been occupied by the library.
-// It works on i368/x86_64 Linux, but not necessary anywhere else.
-// REQUIRES: x86_64-supported-target,i386-supported-target
-
-// RUN: %clangxx_asan -O0 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
-// RUN: %clangxx_asan -O0 %s %libdl -o %t && %run %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -O1 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
-// RUN: %clangxx_asan -O1 %s %libdl -o %t && %run %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -O2 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
-// RUN: %clangxx_asan -O2 %s %libdl -o %t && %run %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -O3 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
-// RUN: %clangxx_asan -O3 %s %libdl -o %t && %run %t 2>&1 | FileCheck %s
-
-#if !defined(SHARED_LIB)
-#include <assert.h>
-#include <dlfcn.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#include <string>
-
-#if defined(__FreeBSD__)
-// The MAP_NORESERVE define has been removed in FreeBSD 11.x, and even before
-// that, it was never implemented. So just define it to zero.
-#undef MAP_NORESERVE
-#define MAP_NORESERVE 0
-#endif
-
-using std::string;
-
-typedef int *(fun_t)();
-
-int main(int argc, char *argv[]) {
- string path = string(argv[0]) + "-so.so";
- size_t PageSize = sysconf(_SC_PAGESIZE);
- printf("opening %s ... \n", path.c_str());
- void *lib = dlopen(path.c_str(), RTLD_NOW);
- if (!lib) {
- printf("error in dlopen(): %s\n", dlerror());
- return 1;
- }
- fun_t *get = (fun_t*)dlsym(lib, "get_address_of_static_var");
- if (!get) {
- printf("failed dlsym\n");
- return 1;
- }
- int *addr = get();
- assert(((size_t)addr % 32) == 0); // should be 32-byte aligned.
- printf("addr: %p\n", addr);
- addr[0] = 1; // make sure we can write there.
-
- // Now dlclose the shared library.
- printf("attempting to dlclose\n");
- if (dlclose(lib)) {
- printf("failed to dlclose\n");
- return 1;
- }
- // Now, the page where 'addr' is unmapped. Map it.
- size_t page_beg = ((size_t)addr) & ~(PageSize - 1);
- void *res = mmap((void*)(page_beg), PageSize,
- PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANON | MAP_FIXED | MAP_NORESERVE, -1, 0);
- if (res == (char*)-1L) {
- printf("failed to mmap\n");
- return 1;
- }
- addr[1] = 2; // BOOM (if the bug is not fixed).
- printf("PASS\n");
- // CHECK: PASS
- return 0;
-}
-#else // SHARED_LIB
-#include <stdio.h>
-
-static int pad1;
-static int static_var;
-static int pad2;
-
-extern "C"
-int *get_address_of_static_var() {
- return &static_var;
-}
-
-__attribute__((constructor))
-void at_dlopen() {
- printf("%s: I am being dlopened\n", __FILE__);
-}
-__attribute__((destructor))
-void at_dlclose() {
- printf("%s: I am being dlclosed\n", __FILE__);
-}
-#endif // SHARED_LIB