#include "irprog.h"
#include "entity_t.h"
#include "error.h"
+#include "util.h"
#include "be_t.h"
#include "beemitter.h"
* write it to the disk. This is an artifact from the old C-generating backend
* and even there NOT needed. So we might change it in the future.
*/
-typedef struct _be_gas_decl_env {
+typedef struct be_gas_decl_env {
be_gas_section_t section;
const be_main_env_t *main_env;
} be_gas_decl_env_t;
/* Part1: section-name */
if (flags & GAS_SECTION_FLAG_TLS)
be_emit_char('t');
- assert(base < sizeof(basename)/sizeof(basename[0]));
+ assert(base < (be_gas_section_t)ARRAY_SIZE(basename));
be_emit_string(basename[base]);
if (flags & GAS_SECTION_FLAG_COMDAT) {
}
}
- assert(base < sizeof(basename)/sizeof(basename[0]));
+ assert(base < (be_gas_section_t) ARRAY_SIZE(basename));
be_emit_cstring("\t.section\t.");
/* section name */
if (flags & GAS_SECTION_FLAG_TLS)
emit_section(section, NULL);
}
-static tarval *get_initializer_tarval(const ir_initializer_t *initializer)
+static ir_tarval *get_initializer_tarval(const ir_initializer_t *initializer)
{
if (initializer->kind == IR_INITIALIZER_TARVAL)
return initializer->tarval.value;
return get_tarval_undefined();
}
-static int initializer_is_string_const(const ir_initializer_t *initializer)
+static bool initializer_is_string_const(const ir_initializer_t *initializer)
{
size_t i, len;
- int found_printable = 0;
+ bool found_printable = false;
if (initializer->kind != IR_INITIALIZER_COMPOUND)
- return 0;
+ return false;
len = initializer->compound.n_initializers;
if (len < 1)
- return 0;
+ return false;
for (i = 0; i < len; ++i) {
int c;
- tarval *tv;
+ ir_tarval *tv;
ir_mode *mode;
ir_initializer_t *sub_initializer
= initializer->compound.initializers[i];
tv = get_initializer_tarval(sub_initializer);
if (!tarval_is_constant(tv))
- return 0;
+ return false;
mode = get_tarval_mode(tv);
if (!mode_is_int(mode) || get_mode_size_bits(mode) != 8)
- return 0;
+ return false;
c = get_tarval_long(tv);
if (isgraph(c) || isspace(c))
- found_printable = 1;
+ found_printable = true;
else if (c != 0)
- return 0;
+ return false;
if (i == len - 1 && c != '\0')
- return 0;
+ return false;
}
return found_printable;
case IR_INITIALIZER_NULL:
return true;
case IR_INITIALIZER_TARVAL: {
- tarval *tv = initializer->tarval.value;
+ ir_tarval *tv = initializer->tarval.value;
return tarval_is_null(tv);
}
case IR_INITIALIZER_CONST: {
}
if (be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O
- && (linkage & IR_LINKAGE_HIDDEN_USER)) {
+ && (linkage & IR_LINKAGE_HIDDEN_USER)
+ && get_entity_ld_name(entity)[0] != '\0') {
be_emit_cstring("\t.no_dead_strip ");
be_gas_emit_entity(entity);
be_emit_char('\n');
* @param tv the tarval
* @param bytes the width of the tarvals value in bytes
*/
-static void emit_arith_tarval(tarval *tv, int bytes)
+static void emit_arith_tarval(ir_tarval *tv, int bytes)
{
switch (bytes) {
case 1:
*
* @return the tarval
*/
-static tarval *get_atomic_init_tv(ir_node *init)
+static ir_tarval *get_atomic_init_tv(ir_node *init)
{
for (;;) {
ir_mode *mode = get_irn_mode(init);
{
ir_mode *mode = get_irn_mode(init);
int bytes = get_mode_size_bytes(mode);
- tarval *tv;
+ ir_tarval *tv;
ir_entity *ent;
init = skip_Id(init);
}
}
-static void emit_string_initializer(const ir_initializer_t *initializer)
+static size_t emit_string_initializer(const ir_initializer_t *initializer)
{
size_t i, len;
const ir_initializer_t *sub_initializer
= get_initializer_compound_value(initializer, i);
- tarval *tv = get_initializer_tarval(sub_initializer);
- int c = get_tarval_long(tv);
+ ir_tarval *tv = get_initializer_tarval(sub_initializer);
+ int c = get_tarval_long(tv);
switch (c) {
case '"' : be_emit_cstring("\\\""); break;
}
be_emit_cstring("\"\n");
be_emit_write_line();
+
+ return initializer->compound.n_initializers;
}
-enum normal_or_bitfield_kind {
+typedef enum normal_or_bitfield_kind {
NORMAL = 0,
TARVAL,
+ STRING,
BITFIELD
-};
+} normal_or_bitfield_kind;
typedef struct {
- enum normal_or_bitfield_kind kind;
+ normal_or_bitfield_kind kind;
union {
- ir_node *value;
- tarval *tarval;
- unsigned char bf_val;
+ ir_node *value;
+ ir_tarval *tarval;
+ unsigned char bf_val;
+ const ir_initializer_t *string;
} v;
} normal_or_bitfield;
static void emit_bitfield(normal_or_bitfield *vals, size_t offset_bits,
const ir_initializer_t *initializer, ir_type *type)
{
- unsigned char last_bits = 0;
- ir_mode *mode = get_type_mode(type);
- tarval *tv = NULL;
- unsigned char curr_bits;
- int value_len;
- int j;
+ static const size_t BITS_PER_BYTE = 8;
+ ir_mode *mode = get_type_mode(type);
+ ir_tarval *tv = NULL;
+ int value_len;
+ size_t bit_offset;
+ size_t end;
+ bool big_endian = be_get_backend_param()->byte_order_big_endian;
switch (get_initializer_kind(initializer)) {
case IR_INITIALIZER_NULL:
}
tv = tarval_convert_to(tv, get_type_mode(type));
- /* normalize offset */
- vals += offset_bits >> 3;
- offset_bits &= 7;
- value_len = get_mode_size_bits(mode);
-
- /* combine bits with existing bits */
- for (j = 0; value_len + (int) offset_bits > 0; ++j) {
- assert((size_t) (vals - glob_vals) + j < max_vals);
- assert(vals[j].kind == BITFIELD ||
- (vals[j].kind == NORMAL && vals[j].v.value == NULL));
- vals[j].kind = BITFIELD;
- curr_bits = get_tarval_sub_bits(tv, j);
- vals[j].v.bf_val
- |= (last_bits >> (8 - offset_bits)) | (curr_bits << offset_bits);
- value_len -= 8;
- last_bits = curr_bits;
+ value_len = get_type_size_bytes(get_primitive_base_type(type));
+ bit_offset = 0;
+ end = get_mode_size_bits(mode);
+ while (bit_offset < end) {
+ size_t src_offset = bit_offset / BITS_PER_BYTE;
+ size_t src_offset_bits = bit_offset % BITS_PER_BYTE;
+ size_t dst_offset = (bit_offset+offset_bits) / BITS_PER_BYTE;
+ size_t dst_offset_bits = (bit_offset+offset_bits) % BITS_PER_BYTE;
+ size_t src_bits_len = end-bit_offset;
+ size_t dst_bits_len = BITS_PER_BYTE-dst_offset_bits;
+ unsigned char curr_bits;
+ normal_or_bitfield *val;
+ if (src_bits_len > dst_bits_len)
+ src_bits_len = dst_bits_len;
+
+ if (big_endian) {
+ val = &vals[value_len - dst_offset - 1];
+ } else {
+ val = &vals[dst_offset];
+ }
+
+ assert((val-glob_vals) < (ptrdiff_t) max_vals);
+ assert(val->kind == BITFIELD ||
+ (val->kind == NORMAL && val->v.value == NULL));
+ val->kind = BITFIELD;
+ curr_bits = get_tarval_sub_bits(tv, src_offset);
+ curr_bits = curr_bits >> src_offset_bits;
+ if (src_offset_bits + src_bits_len > 8) {
+ unsigned next_bits = get_tarval_sub_bits(tv, src_offset+1);
+ curr_bits |= next_bits << (8 - src_offset_bits);
+ }
+ curr_bits &= (1 << src_bits_len) - 1;
+ val->v.bf_val |= curr_bits << dst_offset_bits;
+
+ bit_offset += dst_bits_len;
}
}
{
assert((size_t) (vals - glob_vals) < max_vals);
+ if (initializer_is_string_const(initializer)) {
+ assert(vals->kind != BITFIELD);
+ vals->kind = STRING;
+ vals->v.string = initializer;
+ return;
+ }
+
switch (get_initializer_kind(initializer)) {
case IR_INITIALIZER_NULL:
return;
if (mode != NULL) {
size_t offset_bits
= get_entity_offset_bits_remainder(member);
- size_t value_len = get_mode_size_bits(mode);
+ size_t value_len = get_mode_size_bits(mode);
if (offset_bits != 0 ||
(value_len != 8 && value_len != 16 && value_len != 32
- && value_len != 64)) {
+ && value_len != 64) ||
+ (is_Primitive_type(subtype) && get_primitive_base_type(subtype) != NULL)) {
emit_bitfield(&vals[offset], offset_bits,
sub_initializer, subtype);
continue;
/* now write values sorted */
for (k = 0; k < size; ) {
- int space = 0;
- int elem_size = 1;
- if (vals[k].kind == NORMAL) {
+ int space = 0;
+ int elem_size = 1;
+ normal_or_bitfield_kind kind = vals[k].kind;
+ switch (kind) {
+ case NORMAL:
if (vals[k].v.value != NULL) {
emit_atomic_init(env, vals[k].v.value);
elem_size = get_mode_size_bytes(get_irn_mode(vals[k].v.value));
- } else {
- elem_size = 0;
- }
- } else if (vals[k].kind == TARVAL) {
- tarval *tv = vals[k].v.tarval;
- size_t size = get_mode_size_bytes(get_tarval_mode(tv));
+ } else {
+ elem_size = 0;
+ }
+ break;
+ case TARVAL: {
+ ir_tarval *tv = vals[k].v.tarval;
+ size_t size = get_mode_size_bytes(get_tarval_mode(tv));
assert(tv != NULL);
emit_arith_tarval(tv, size);
be_emit_char('\n');
be_emit_write_line();
- } else {
- assert(vals[k].kind == BITFIELD);
+ break;
+ }
+ case STRING:
+ elem_size = emit_string_initializer(vals[k].v.string);
+ break;
+ case BITFIELD:
be_emit_irprintf("\t.byte\t%d\n", vals[k].v.bf_val);
be_emit_write_line();
+ break;
}
k += elem_size;
if (offset_bits != 0 ||
(value_len != 8 && value_len != 16 && value_len != 32 && value_len != 64)) {
- tarval *tv = get_atomic_init_tv(value);
+ ir_tarval *tv = get_atomic_init_tv(value);
unsigned char curr_bits, last_bits = 0;
if (tv == NULL) {
panic("Couldn't get numeric value for bitfield initializer '%s'",
be_dbg_variable(entity);
if (section == GAS_SECTION_BSS) {
- ir_visibility visibility = get_entity_visibility(entity);
-
switch (visibility) {
case ir_visibility_local:
case ir_visibility_private:
emit_align(alignment);
}
if (be_gas_object_file_format == OBJECT_FILE_FORMAT_ELF
- && be_gas_emit_types) {
+ && be_gas_emit_types
+ && visibility != ir_visibility_private) {
be_emit_cstring("\t.type\t");
be_gas_emit_entity(entity);
be_emit_cstring(", ");
projects / libfirm / blobdiff