static struct hashtable * master_mod_table = NULL;
+
static uint_t mod_hash_fn(addr_t key) {
char * name = (char *)key;
return v3_hash_buffer((uchar_t *)name, strlen(name));
return 0;
}
+/* ***************** */
+/* Linkage functions */
+/* ***************** */
+
+
+/* Data structure containing symbols exported via the symbiotic interface */
+struct v3_symbol_def32 {
+ uint32_t name_gva;
+ uint32_t value;
+} __attribute__((packed));
+
+struct v3_symbol {
+ char name[256];
+ uint64_t linkage;
+
+ struct list_head sym_node;
+};
+
+
+
+#include <palacios/vm_guest_mem.h>
+
+static int symbol_hcall_handler(struct guest_info * core, hcall_id_t hcall_id, void * priv_data) {
+ struct v3_symmod_state * symmod_state = &(core->vm_info->sym_vm_state.symmod_state);
+ addr_t sym_start_gva = core->vm_regs.rbx;
+ uint32_t sym_size = core->vm_regs.rcx;
+
+ int i = 0;
+
+ PrintError("Received SYMMOD symbol tables addr=%p, size=%d\n", (void *)sym_start_gva, sym_size);
+
+ for (i = 0; i < sym_size; i++) {
+ char * sym_name = NULL;
+ struct v3_symbol_def32 * tmp_symbol = NULL;
+ struct v3_symbol * new_symbol = NULL;
+ addr_t sym_gva = sym_start_gva + (sizeof(struct v3_symbol_def32) * i);
+
+
+ if (guest_va_to_host_va(core, sym_gva, (addr_t *)&(tmp_symbol)) == -1) {
+ PrintError("Could not locate symbiotic symbol definition\n");
+ continue;
+ }
+
+ if (guest_va_to_host_va(core, tmp_symbol->name_gva, (addr_t *)&(sym_name)) == -1) {
+ PrintError("Could not locate symbiotic symbol name\n");
+ continue;
+ }
+
+ PrintError("Symbiotic Symbol (%s) at %p\n", sym_name, (void *)(addr_t)tmp_symbol->value);
+
+ new_symbol = (struct v3_symbol *)V3_Malloc(sizeof(struct v3_symbol));
+
+ strncpy(new_symbol->name, sym_name, 256);
+ new_symbol->linkage = tmp_symbol->value;
+
+ list_add(&(new_symbol->sym_node), &(symmod_state->v3_sym_list));
+ }
+
+ return 0;
+}
+
+
+int v3_init_symmod_vm(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
+ struct v3_symmod_state * symmod_state = &(vm->sym_vm_state.symmod_state);
+ struct v3_symspy_global_page * sym_page = v3_sym_get_symspy_vm(vm);
+
+ sym_page->symmod_enabled = 1;
+
+ v3_register_hypercall(vm, SYMMOD_SYMS_HCALL, symbol_hcall_handler, NULL);
+
+ INIT_LIST_HEAD(&(symmod_state->v3_sym_list));
+ V3_Print("Symmod initialized\n");
-int v3_init_symmod_vm(struct v3_vm_info * info, v3_cfg_tree_t * cfg) {
return 0;
}
PrintDebug("Loading Module (%s)\n", mod_name);
- return symmod_state->loader_ops->load_module(vm, mod->name, mod->end_addr - mod->start_addr, symmod_state->loader_data);
+ return symmod_state->loader_ops->load_module(vm, mod, symmod_state->loader_data);
}