55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
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// Check that unloading a module doesn't break coverage dumping for remaining
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// modules.
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// RUN: %clangxx_asan -fsanitize-coverage=func -DSHARED %s -shared -o %dynamiclib1 -fPIC
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// RUN: %clangxx_asan -fsanitize-coverage=func -DSHARED %s -shared -o %dynamiclib2 -fPIC
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// RUN: %clangxx_asan -fsanitize-coverage=func %s %libdl -o %t
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// RUN: mkdir -p %T/coverage-module-unloaded && cd %T/coverage-module-unloaded
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// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t %dynamiclib1 %dynamiclib2 2>&1 | FileCheck %s
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// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t %dynamiclib1 %dynamiclib2 foo 2>&1 | FileCheck %s
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// RUN: rm -r %T/coverage-module-unloaded
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//
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// https://code.google.com/p/address-sanitizer/issues/detail?id=263
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// XFAIL: android
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#include <assert.h>
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#include <dlfcn.h>
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#include <stdio.h>
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#include <unistd.h>
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#ifdef SHARED
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extern "C" {
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void bar() { printf("bar\n"); }
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}
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#else
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int main(int argc, char **argv) {
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fprintf(stderr, "PID: %d\n", getpid());
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assert(argc > 2);
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void *handle1 = dlopen(argv[1], RTLD_LAZY); // %dynamiclib1
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assert(handle1);
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void (*bar1)() = (void (*)())dlsym(handle1, "bar");
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assert(bar1);
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bar1();
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void *handle2 = dlopen(argv[2], RTLD_LAZY); // %dynamiclib2
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assert(handle2);
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void (*bar2)() = (void (*)())dlsym(handle2, "bar");
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assert(bar2);
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bar2();
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// It matters whether the unloaded module has a higher or lower address range
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// than the remaining one. Make sure to test both cases.
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if (argc < 2)
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dlclose(bar1 < bar2 ? handle1 : handle2);
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else
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dlclose(bar1 < bar2 ? handle2 : handle1);
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return 0;
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}
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#endif
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// CHECK: PID: [[PID:[0-9]+]]
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// CHECK: [[PID]].sancov: 1 PCs written
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// CHECK: coverage-module-unloaded{{.*}}1.[[PID]]
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// CHECK: coverage-module-unloaded{{.*}}2.[[PID]]
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// Even though we've unloaded one of the libs we still dump the coverage file
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// for that lib (although the data will be inaccurate, if at all useful)
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