int
orc_code_region_allocate_codemem_dual_map (OrcCodeRegion *region,
const char *dir, int force_unlink)
{
int fd;
int n;
char *filename;
mode_t mask;
filename = malloc (strlen ("/orcexec..") +
strlen (dir) + 6 + 1);
sprintf(filename, "%s/orcexec.XXXXXX", dir);
mask = umask (0066);
fd = mkstemp (filename);
umask (mask);
if (fd == -1) {
ORC_WARNING ("failed to create temp file");
free (filename);
return FALSE;
}
if (force_unlink || !_orc_compiler_flag_debug) {
unlink (filename);
}
free (filename);
n = ftruncate (fd, SIZE);
if (n < 0) {
ORC_WARNING("failed to expand file to size");
close (fd);
return FALSE;
}
region->exec_ptr = mmap (NULL, SIZE, PROT_READ|PROT_EXEC,
MAP_SHARED, fd, 0);
if (region->exec_ptr == MAP_FAILED) {
ORC_WARNING("failed to create exec map");
close (fd);
return FALSE;
}
region->write_ptr = mmap (NULL, SIZE, PROT_READ|PROT_WRITE,
MAP_SHARED, fd, 0);
if (region->write_ptr == MAP_FAILED) {
ORC_WARNING ("failed to create write map");
munmap (region->exec_ptr, SIZE);
close (fd);
return FALSE;
}
region->size = SIZE;
close (fd);
return TRUE;
}
int
orc_code_region_allocate_codemem_anon_map (OrcCodeRegion *region)
{
region->exec_ptr = mmap (NULL, SIZE, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (region->exec_ptr == MAP_FAILED) {
ORC_WARNING("failed to create write/exec map");
return FALSE;
}
region->write_ptr = region->exec_ptr;
region->size = SIZE;
return TRUE;
}
/**
* orc_program_compile_full:
* @program: the OrcProgram to compile
*
* Compiles an Orc program for the given target, using the
* given target flags.
*
* Returns: an OrcCompileResult
*/
OrcCompileResult
orc_program_compile_full (OrcProgram *program, OrcTarget *target,
unsigned int flags)
{
OrcCompiler *compiler;
int i;
OrcCompileResult result;
ORC_INFO("initializing compiler for program \"%s\"", program->name);
compiler = malloc (sizeof(OrcCompiler));
memset (compiler, 0, sizeof(OrcCompiler));
if (program->backup_func) {
program->code_exec = program->backup_func;
} else {
program->code_exec = (void *)orc_executor_emulate;
}
compiler->program = program;
compiler->target = target;
compiler->target_flags = flags;
{
ORC_LOG("variables");
for(i=0;i<ORC_N_VARIABLES;i++){
if (program->vars[i].size > 0) {
ORC_LOG("%d: %s size %d type %d alloc %d", i,
program->vars[i].name,
program->vars[i].size,
program->vars[i].vartype,
program->vars[i].alloc);
}
}
ORC_LOG("instructions");
for(i=0;i<program->n_insns;i++){
ORC_LOG("%d: %s %d %d %d %d", i,
program->insns[i].opcode->name,
program->insns[i].dest_args[0],
program->insns[i].dest_args[1],
program->insns[i].src_args[0],
program->insns[i].src_args[1]);
}
}
memcpy (compiler->insns, program->insns,
program->n_insns * sizeof(OrcInstruction));
compiler->n_insns = program->n_insns;
memcpy (compiler->vars, program->vars,
ORC_N_VARIABLES * sizeof(OrcVariable));
memset (compiler->vars + ORC_N_VARIABLES, 0,
(ORC_N_COMPILER_VARIABLES - ORC_N_VARIABLES) * sizeof(OrcVariable));
compiler->n_temp_vars = program->n_temp_vars;
compiler->n_dup_vars = 0;
for(i=0;i<32;i++) {
compiler->valid_regs[i] = 1;
}
orc_compiler_check_sizes (compiler);
if (compiler->error) goto error;
if (compiler->target) {
compiler->target->compiler_init (compiler);
}
orc_compiler_rewrite_insns (compiler);
if (compiler->error) goto error;
orc_compiler_rewrite_vars (compiler);
if (compiler->error) goto error;
if (compiler->target) {
orc_compiler_global_reg_alloc (compiler);
orc_compiler_rewrite_vars2 (compiler);
}
#if 0
{
ORC_ERROR("variables");
for(i=0;i<ORC_N_VARIABLES;i++){
if (compiler->vars[i].size > 0) {
ORC_ERROR("%d: %s size %d type %d alloc %d [%d,%d]", i,
compiler->vars[i].name,
compiler->vars[i].size,
compiler->vars[i].vartype,
compiler->vars[i].alloc,
compiler->vars[i].first_use,
compiler->vars[i].last_use);
}
}
ORC_ERROR("instructions");
for(i=0;i<compiler->n_insns;i++){
ORC_ERROR("%d: %s %d %d %d %d", i,
compiler->insns[i].opcode->name,
compiler->insns[i].dest_args[0],
compiler->insns[i].dest_args[1],
compiler->insns[i].src_args[0],
compiler->insns[i].src_args[1]);
}
}
#endif
if (compiler->error) goto error;
program->orccode = orc_code_new ();
program->orccode->is_2d = program->is_2d;
program->orccode->constant_n = program->constant_n;
program->orccode->constant_m = program->constant_m;
program->orccode->exec = program->code_exec;
program->orccode->n_insns = compiler->n_insns;
program->orccode->insns = malloc(sizeof(OrcInstruction) * compiler->n_insns);
memcpy (program->orccode->insns, compiler->insns,
sizeof(OrcInstruction) * compiler->n_insns);
program->orccode->vars = malloc (sizeof(OrcCodeVariable) * ORC_N_COMPILER_VARIABLES);
memset (program->orccode->vars, 0,
sizeof(OrcCodeVariable) * ORC_N_COMPILER_VARIABLES);
for(i=0;i<ORC_N_COMPILER_VARIABLES;i++){
program->orccode->vars[i].vartype = compiler->vars[i].vartype;
program->orccode->vars[i].size = compiler->vars[i].size;
program->orccode->vars[i].value = compiler->vars[i].value;
}
if (program->backup_func && _orc_compiler_flag_backup) {
orc_compiler_error (compiler, "Compilation disabled, using backup");
compiler->result = ORC_COMPILE_RESULT_UNKNOWN_COMPILE;
goto error;
}
if (_orc_compiler_flag_emulate || target == NULL) {
program->code_exec = (void *)orc_executor_emulate;
program->orccode->exec = (void *)orc_executor_emulate;
orc_compiler_error (compiler, "Compilation disabled, using emulation");
compiler->result = ORC_COMPILE_RESULT_UNKNOWN_COMPILE;
goto error;
}
orc_compiler_assign_rules (compiler);
if (compiler->error) goto error;
ORC_INFO("allocating code memory");
compiler->code = malloc(65536);
compiler->codeptr = compiler->code;
if (compiler->error) goto error;
ORC_INFO("compiling for target \"%s\"", compiler->target->name);
compiler->target->compile (compiler);
if (compiler->error) {
compiler->result = ORC_COMPILE_RESULT_UNKNOWN_COMPILE;
goto error;
}
program->orccode->code_size = compiler->codeptr - compiler->code;
orc_code_allocate_codemem (program->orccode, program->orccode->code_size);
memcpy (program->orccode->code, compiler->code, program->orccode->code_size);
#ifdef VALGRIND_DISCARD_TRANSLATIONS
VALGRIND_DISCARD_TRANSLATIONS (program->orccode->exec,
program->orccode->code_size);
#endif
if (compiler->target->flush_cache) {
compiler->target->flush_cache (program->orccode);
}
program->code_exec = program->orccode->exec;
program->asm_code = compiler->asm_code;
result = compiler->result;
for (i=0;i<compiler->n_dup_vars;i++){
free(compiler->vars[ORC_VAR_T1 + compiler->n_temp_vars + i].name);
compiler->vars[ORC_VAR_T1 + compiler->n_temp_vars + i].name = NULL;
}
free (compiler->code);
compiler->code = NULL;
if (compiler->output_insns) free (compiler->output_insns);
free (compiler);
ORC_INFO("finished compiling (success)");
return result;
error:
if (compiler->error_msg) {
ORC_WARNING ("program %s failed to compile, reason: %s",
program->name, compiler->error_msg);
} else {
ORC_WARNING("program %s failed to compile, reason %d",
program->name, compiler->result);
}
result = compiler->result;
if (program->error_msg) free (program->error_msg);
program->error_msg = compiler->error_msg;
if (result == 0) {
result = ORC_COMPILE_RESULT_UNKNOWN_COMPILE;
}
if (compiler->asm_code) {
free (compiler->asm_code);
compiler->asm_code = NULL;
}
for (i=0;i<compiler->n_dup_vars;i++){
free(compiler->vars[ORC_VAR_T1 + compiler->n_temp_vars + i].name);
compiler->vars[ORC_VAR_T1 + compiler->n_temp_vars + i].name = NULL;
}
free (compiler->code);
compiler->code = NULL;
if (compiler->output_insns) free (compiler->output_insns);
free (compiler);
ORC_INFO("finished compiling (fail)");
return result;
}