forked from OSchip/llvm-project
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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int main(int argc, char *argv[]) {
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dlerror();
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void *f1_handle = dlopen("func.shared", RTLD_LAZY | RTLD_GLOBAL);
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if (f1_handle == NULL) {
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fprintf(stderr, "unable to open 'func.shared': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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void (*func)(void) = (void (*)(void))dlsym(f1_handle, "func");
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if (func == NULL) {
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fprintf(stderr, "unable to lookup symbol 'func': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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dlerror();
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void *f2_handle = dlopen("func2.shared", RTLD_LAZY | RTLD_GLOBAL);
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if (f2_handle == NULL) {
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fprintf(stderr, "unable to open 'func2.shared': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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void (*func2)(void) = (void (*)(void))dlsym(f2_handle, "func2");
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if (func2 == NULL) {
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fprintf(stderr, "unable to lookup symbol 'func2': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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func2();
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#ifdef USE_LIB3
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void *f3_handle = dlopen("func3.shared", RTLD_LAZY | RTLD_GLOBAL);
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if (f3_handle == NULL) {
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fprintf(stderr, "unable to open 'func3.shared': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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void (*func3)(void) = (void (*)(void))dlsym(f3_handle, "func3");
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if (func3 == NULL) {
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fprintf(stderr, "unable to lookup symbol 'func3': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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func3();
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#endif
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dlerror();
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void (*gcov_flush1)() = (void (*)())dlsym(f1_handle, "__gcov_flush");
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if (gcov_flush1 == NULL) {
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fprintf(stderr, "unable to find __gcov_flush in func.shared': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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dlerror();
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void (*gcov_flush2)() = (void (*)())dlsym(f2_handle, "__gcov_flush");
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if (gcov_flush2 == NULL) {
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fprintf(stderr, "unable to find __gcov_flush in func2.shared': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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if (gcov_flush1 == gcov_flush2) {
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fprintf(stderr, "Same __gcov_flush found in func.shared and func2.shared\n");
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return EXIT_FAILURE;
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}
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dlerror();
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if (dlclose(f2_handle) != 0) {
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fprintf(stderr, "unable to close 'func2.shared': %s\n", dlerror());
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return EXIT_FAILURE;
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}
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func();
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int g1 = 0;
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int g2 = 0;
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int n = 10;
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if (n % 5 == 0)
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g1++;
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else
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g2++;
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return EXIT_SUCCESS;
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}
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