1*7c3d14c8STreehugger Robot // We can't unwind stack if we're running coroutines on heap-allocated 2*7c3d14c8STreehugger Robot // memory. Make sure we don't report these leaks. 3*7c3d14c8STreehugger Robot 4*7c3d14c8STreehugger Robot // RUN: %clangxx_lsan %s -o %t 5*7c3d14c8STreehugger Robot // RUN: %run %t 2>&1 6*7c3d14c8STreehugger Robot // RUN: not %run %t foo 2>&1 | FileCheck %s 7*7c3d14c8STreehugger Robot 8*7c3d14c8STreehugger Robot #include <stdio.h> 9*7c3d14c8STreehugger Robot #if defined(__APPLE__) 10*7c3d14c8STreehugger Robot // Note: ucontext.h is deprecated on OSX, so this test may stop working 11*7c3d14c8STreehugger Robot // someday. We define _XOPEN_SOURCE to keep using ucontext.h for now. 12*7c3d14c8STreehugger Robot #define _XOPEN_SOURCE 1 13*7c3d14c8STreehugger Robot #endif 14*7c3d14c8STreehugger Robot #include <ucontext.h> 15*7c3d14c8STreehugger Robot #include <unistd.h> 16*7c3d14c8STreehugger Robot 17*7c3d14c8STreehugger Robot const int kStackSize = 1 << 20; 18*7c3d14c8STreehugger Robot Child()19*7c3d14c8STreehugger Robotvoid Child() { 20*7c3d14c8STreehugger Robot int child_stack; 21*7c3d14c8STreehugger Robot printf("Child: %p\n", &child_stack); 22*7c3d14c8STreehugger Robot int *leaked = new int[666]; 23*7c3d14c8STreehugger Robot } 24*7c3d14c8STreehugger Robot main(int argc,char * argv[])25*7c3d14c8STreehugger Robotint main(int argc, char *argv[]) { 26*7c3d14c8STreehugger Robot char stack_memory[kStackSize + 1]; 27*7c3d14c8STreehugger Robot char *heap_memory = new char[kStackSize + 1]; 28*7c3d14c8STreehugger Robot char *child_stack = (argc > 1) ? stack_memory : heap_memory; 29*7c3d14c8STreehugger Robot 30*7c3d14c8STreehugger Robot printf("Child stack: %p\n", child_stack); 31*7c3d14c8STreehugger Robot ucontext_t orig_context; 32*7c3d14c8STreehugger Robot ucontext_t child_context; 33*7c3d14c8STreehugger Robot getcontext(&child_context); 34*7c3d14c8STreehugger Robot child_context.uc_stack.ss_sp = child_stack; 35*7c3d14c8STreehugger Robot child_context.uc_stack.ss_size = kStackSize / 2; 36*7c3d14c8STreehugger Robot child_context.uc_link = &orig_context; 37*7c3d14c8STreehugger Robot makecontext(&child_context, Child, 0); 38*7c3d14c8STreehugger Robot if (swapcontext(&orig_context, &child_context) < 0) { 39*7c3d14c8STreehugger Robot perror("swapcontext"); 40*7c3d14c8STreehugger Robot return 1; 41*7c3d14c8STreehugger Robot } 42*7c3d14c8STreehugger Robot 43*7c3d14c8STreehugger Robot delete[] heap_memory; 44*7c3d14c8STreehugger Robot return 0; 45*7c3d14c8STreehugger Robot } 46*7c3d14c8STreehugger Robot 47*7c3d14c8STreehugger Robot // CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: 2664 byte(s) leaked in 1 allocation(s) 48