+#include <libunwind.h>
+
+#include "src/mc/mc_forward.hpp"
+
+namespace simgrid {
+namespace unw {
+
+XBT_PRIVATE unw_addr_space_t create_addr_space();
+XBT_PRIVATE void* create_context(unw_addr_space_t as, pid_t pid);
+
+}
+}
+
+namespace simgrid {
+namespace mc {
+
+class UnwindContext {
+ simgrid::mc::AddressSpace* addressSpace_ = nullptr;
+ simgrid::mc::Process* process_ = nullptr;
+ unw_context_t unwindContext_;
+public:
+ UnwindContext() {}
+ ~UnwindContext() { clear(); }
+ void initialize(simgrid::mc::Process* process, unw_context_t* c);
+ void clear();
+ unw_cursor_t cursor();
+
+private: // Methods and virtual table for libunwind
+ static int find_proc_info(unw_addr_space_t as,
+ unw_word_t ip, unw_proc_info_t *pip,
+ int need_unwind_info, void* arg) noexcept;
+ static void put_unwind_info(unw_addr_space_t as,
+ unw_proc_info_t *pip, void* arg) noexcept;
+ static int get_dyn_info_list_addr(unw_addr_space_t as,
+ unw_word_t *dilap, void* arg) noexcept;
+ static int access_mem(unw_addr_space_t as,
+ unw_word_t addr, unw_word_t *valp,
+ int write, void* arg) noexcept;
+ static void* get_reg(unw_context_t* context, unw_regnum_t regnum) noexcept;
+ static int access_reg(unw_addr_space_t as,
+ unw_regnum_t regnum, unw_word_t *valp,
+ int write, void* arg) noexcept;
+ static int access_fpreg(unw_addr_space_t as,
+ unw_regnum_t regnum, unw_fpreg_t *fpvalp,
+ int write, void* arg) noexcept;
+ static int resume(unw_addr_space_t as,
+ unw_cursor_t *cp, void* arg) noexcept;
+ static int get_proc_name(unw_addr_space_t as,
+ unw_word_t addr, char *bufp,
+ size_t buf_len, unw_word_t *offp,
+ void* arg) noexcept;
+ static unw_accessors_t accessors;
+public:
+ // Create a libunwind address space:
+ static unw_addr_space_t createUnwindAddressSpace();
+};
+
+void MC_dump_stack_unw(FILE* file, unw_cursor_t cursor);
+void dumpStack(FILE* file, unw_cursor_t cursor);
+void dumpStack(FILE* file, pid_t pid);
+
+}
+}