int
main(int ac, char **av, char **ep)
{
int rc;
cpu_t *cpu;
xec_guest_info_t guest_info;
xec_mem_if_t *mem_if;
xec_monitor_t *monitor;
xec_us_syscall_if_t *us_syscall;
m88k_uintptr_t stack_top;
nix_env_t *env;
bool debugging = false;
aspace_lock();
if (ac < 2) {
fprintf(stderr, "usage: %s <executable> [args...]\n", *av);
exit(EXIT_FAILURE);
}
/* Initialize xec, nix and loader. */
xec_init();
obsd41_init();
loader_init();
/* Create CPU */
cpu = cpu_new(CPU_ARCH_M88K, CPU_FLAG_ENDIAN_BIG, 0);
if (cpu == NULL) {
fprintf(stderr, "error: failed initializing M88K architecture.\n");
exit(EXIT_FAILURE);
}
/* Create XEC bridge mem-if */
mem_if = run88_new_mem_if();
/* Create the XEC US Syscall */
us_syscall = obsd41_us_syscall_create(mem_if);
if (us_syscall == NULL) {
fprintf(stderr, "error: failed creating xec userspace syscall.\n");
exit(EXIT_FAILURE);
}
/* Create NIX env */
env = nix_env_create(mem_if);
if (env == NULL) {
fprintf(stderr, "error: failed creating nix environment.\n");
exit(EXIT_FAILURE);
}
/* Load the executable */
rc = loader_load(mem_if, av[1]);
if (rc != LOADER_SUCCESS) {
fprintf(stderr, "error: cannot load executable '%s', error=%d.\n", av[1], rc);
exit(EXIT_FAILURE);
}
/* Setup arguments */
g_uframe_log = xec_log_register("uframe");
#ifndef DEBUGGER
xec_log_disable("nix");
xec_log_disable("openbsd41");
xec_log_disable("uframe");
xec_log_disable(NULL);
#endif
openbsd_m88k_setup_uframe(cpu, mem_if, ac - 1, av + 1, ep, &stack_top);
/* Setup the CPU */
cpu_set_flags_codegen(cpu, CPU_CODEGEN_OPTIMIZE|CPU_CODEGEN_TAG_LIMIT);
cpu_set_flags_debug(cpu, CPU_DEBUG_NONE);
//cpu_set_flags_debug(cpu, CPU_DEBUG_SINGLESTEP_BB);
cpu_set_flags_hint(cpu, CPU_HINT_TRAP_RETURNS_TWICE);
cpu_set_ram(cpu, RAM);
/* Create XEC bridge monitor */
guest_info.name = cpu->info.name;
guest_info.endian = (cpu->info.common_flags & CPU_FLAG_ENDIAN_MASK)
== CPU_FLAG_ENDIAN_BIG ? XEC_ENDIAN_BIG : XEC_ENDIAN_LITTLE;
guest_info.byte_size = cpu->info.byte_size;
guest_info.word_size = cpu->info.word_size;
guest_info.page_size = cpu->info.default_page_size;
monitor = xec_monitor_create(&guest_info, mem_if, cpu->rf.grf, NULL);
if (monitor == NULL) {
fprintf(stderr, "error: failed createc xec monitor.\n");
exit(EXIT_FAILURE);
}
/* Setup registers for execution */
PC = g_ahdr.entry;
R[31] = stack_top; // Stack Pointer
R[1] = -1; // Return Address
cpu->code_start = g_ahdr.tstart;
cpu->code_end = g_ahdr.tstart + g_ahdr.tsize;
cpu->code_entry = g_ahdr.entry;
cpu_tag(cpu, cpu->code_entry);
dump_state(RAM, (m88k_grf_t*)cpu->rf.grf);
#ifdef DEBUGGER
debugging = true;
#else
fprintf(stderr, "Translating..."); fflush(stderr);
cpu_translate(cpu);
fprintf(stderr, "done.\n");
#endif
aspace_unlock();
for (;;) {
if (debugging) {
rc = cpu_debugger(cpu, debug_function);
if (rc < 0) {
debugging = false;
continue;
}
} else {
rc = cpu_run(cpu, debug_function);
}
switch (rc) {
case JIT_RETURN_NOERR: /* JIT code wants us to end execution */
break;
case JIT_RETURN_FUNCNOTFOUND:
#ifndef DEBUGGER
fprintf(stderr, "%s: error: 0x%llX not found!\n", __func__, (unsigned long long)PC);
fprintf(stderr, "Translating..."); fflush(stderr);
cpu_tag(cpu, PC);
cpu_flush(cpu);
cpu_translate(cpu);
fprintf(stderr, "done.\n");
#else
dump_state(RAM, (m88k_grf_t*)cpu->rf.grf);
if (PC == (uint32_t)(-1U))
goto exit_loop;
// bad :(
fprintf(stderr, "%s: warning: 0x%llX not found!\n", __func__, (unsigned long long)PC);
fprintf(stderr, "PC: ");
for (size_t i = 0; i < 16; i++)
fprintf(stderr, "%02X ", RAM[PC+i]);
fprintf(stderr, "\n");
exit(EXIT_FAILURE);
#endif
break;
case JIT_RETURN_TRAP:
// printf("TRAP %u / %u!\n", TRAPNO, R[13]);
if (TRAPNO == 0x80 && R[13] == 1) // exit
goto exit_loop;
// printf("BEFORE:\n");
// dump_state(RAM, (m88k_grf_t*)cpu->rf.grf);
xec_us_syscall_dispatch(us_syscall, monitor);
// printf("AFTER:\n");
// dump_state(RAM, (m88k_grf_t*)cpu->rf.grf);
break;
case JIT_RETURN_SINGLESTEP:
break;
default:
fprintf(stderr, "unknown return code: %d\n", rc);
goto exit_loop;
}
if (cpu->flags_debug & (CPU_DEBUG_SINGLESTEP | CPU_DEBUG_SINGLESTEP_BB))
cpu_flush(cpu);
}
exit_loop:
cpu_free(cpu);
fprintf(stderr, ">> run88 success\n");
exit(EXIT_SUCCESS);
}
int lst_parse_entry(easyflash_cart_t * cart, const char *buf_in)
{
int res = -1;
char *filename = NULL;
char *menuname = NULL;
char *typestr = NULL;
lst_type_t type = LST_TYPE_NORMAL;
char *buf = strdup(buf_in);
filename = strtok(buf, LST_SEP_CHAR "\r\n");
menuname = strtok(NULL, LST_SEP_CHAR "\r\n");
if (menuname != NULL) {
typestr = strtok(NULL, "\r\n");
if ((typestr != NULL) && (typestr[1] != 0)) {
util_error("too long type!");
goto fail;
}
}
if (typestr != NULL) {
for (type = LST_TYPE_NORMAL; type < LST_TYPE_NUM; ++type) {
if (lst_type_char[type] == typestr[0]) {
break;
}
}
if (type == LST_TYPE_NUM) {
util_error("invalid type '%c'!", typestr[0]);
goto fail;
}
}
switch (type) {
case LST_TYPE_NORMAL:
case LST_TYPE_HIDDEN:
case LST_TYPE_ALIGN64K:
res = main_flash_add_file(cart, filename, menuname, type == LST_TYPE_HIDDEN, type == LST_TYPE_ALIGN64K, 0);
break;
case LST_TYPE_EAPI:
res = eapi_load(cart, filename) || eapi_inject(cart, 1);
break;
case LST_TYPE_BOOTO:
case LST_TYPE_BOOTN:
res = boot_load(cart, filename, type == LST_TYPE_BOOTO);
break;
case LST_TYPE_LOADERO:
case LST_TYPE_LOADERN:
res = loader_load(cart, filename, type == LST_TYPE_LOADERO);
break;
default:
break;
}
free(buf);
return res;
fail:
free(buf);
return -1;
}
