* 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;
}
}
+static void emit_section_sparc(be_gas_section_t section, const ir_entity *entity)
+{
+ be_gas_section_t base = section & GAS_SECTION_TYPE_MASK;
+ be_gas_section_t flags = section & ~GAS_SECTION_TYPE_MASK;
+ static const char *const basename[] = {
+ "text", "data", "rodata", "bss", "ctors", "dtors"
+ };
+
+ if (current_section == section && !(section & GAS_SECTION_FLAG_COMDAT))
+ return;
+ current_section = section;
+
+ be_emit_cstring("\t.section\t\".");
+
+ /* Part1: section-name */
+ if (flags & GAS_SECTION_FLAG_TLS)
+ be_emit_char('t');
+ assert(base < sizeof(basename)/sizeof(basename[0]));
+ be_emit_string(basename[base]);
+
+ if (flags & GAS_SECTION_FLAG_COMDAT) {
+ be_emit_char('.');
+ be_gas_emit_entity(entity);
+ }
+ be_emit_char('"');
+
+ /* for the simple sections we're done here */
+ if (flags == 0)
+ goto end;
+
+ be_emit_cstring(",#alloc");
+
+ switch (base) {
+ case GAS_SECTION_TEXT: be_emit_cstring(",#execinstr"); break;
+ case GAS_SECTION_DATA:
+ case GAS_SECTION_BSS: be_emit_cstring(",#write"); break;
+ default:
+ /* nothing */
+ break;
+ }
+ if (flags & GAS_SECTION_FLAG_TLS) {
+ be_emit_cstring(",#tls");
+ }
+
+end:
+ be_emit_char('\n');
+ be_emit_write_line();
+}
+
static void emit_section(be_gas_section_t section, const ir_entity *entity)
{
be_gas_section_t base = section & GAS_SECTION_TYPE_MASK;
if (be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O) {
emit_section_macho(section);
return;
+ } else if(be_gas_object_file_format == OBJECT_FILE_FORMAT_ELF_SPARC) {
+ emit_section_sparc(section, entity);
+ return;
}
if (current_section == section && !(section & GAS_SECTION_FLAG_COMDAT))
be_emit_cstring(",\"");
if (be_gas_object_file_format != OBJECT_FILE_FORMAT_COFF)
be_emit_char('a');
- if (base != GAS_SECTION_RODATA)
+ if (base == GAS_SECTION_TEXT)
+ be_emit_char('x');
+ if (base != GAS_SECTION_RODATA && base != GAS_SECTION_TEXT)
be_emit_char('w');
if (flags & GAS_SECTION_FLAG_TLS)
be_emit_char('T');
if (flags & GAS_SECTION_FLAG_COMDAT)
be_emit_char('G');
- be_emit_cstring("\",");
- be_emit_char(be_gas_elf_type_char);
- be_emit_string(type[base]);
+ /* section type */
+ if (be_gas_object_file_format != OBJECT_FILE_FORMAT_COFF) {
+ be_emit_cstring("\",");
+ be_emit_char(be_gas_elf_type_char);
+ be_emit_string(type[base]);
+ }
if (flags & GAS_SECTION_FLAG_COMDAT) {
be_emit_char(',');
be_emit_write_line();
}
+
+
void be_gas_emit_switch_section(be_gas_section_t section)
{
/* you have to produce a switch_section call with entity manually
} else if (entity_has_compound_ent_values(entity)) {
/* I'm too lazy to implement this case as compound graph paths will be
* remove anyway in the future */
+ return false;
}
/* uninitialized, NULL is fine */
return true;
return section | GAS_SECTION_FLAG_TLS;
}
+ /* the java frontend keeps some functions inside classes */
+ if (is_Class_type(owner)) {
+ return determine_basic_section(entity);
+ }
+
panic("Couldn't determine section for %+F?!?", entity);
}
switch (be_gas_object_file_format) {
case OBJECT_FILE_FORMAT_ELF:
+ case OBJECT_FILE_FORMAT_ELF_SPARC:
be_emit_cstring("\t.type\t");
be_gas_emit_entity(entity);
be_emit_cstring(", ");
be_emit_write_line();
}
-/************************************************************************/
-
/**
* Output a tarval.
*
case iro_SymConst:
switch (get_SymConst_kind(init)) {
- case symconst_addr_name:
- be_emit_ident(get_SymConst_name(init));
- break;
-
case symconst_addr_ent:
ent = get_SymConst_entity(init);
be_gas_emit_entity(ent);
be_emit_write_line();
}
-/************************************************************************/
-/* Routines to dump global variables */
-/************************************************************************/
-
/**
* Dump a string constant.
* No checks are made!!
remaining_space = type_size - len;
assert(remaining_space >= 0);
if (remaining_space > 0) {
- be_emit_irprintf("\t.space\t%d\n", remaining_space);
+ be_emit_irprintf("\t.space\t%d, 0\n", remaining_space);
}
}
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;
+ static const size_t BITS_PER_BYTE = 8;
ir_mode *mode = get_type_mode(type);
tarval *tv = NULL;
- unsigned char curr_bits;
int value_len;
- int j;
+ 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;
}
}
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;
/* a gap */
if (space > 0) {
- be_emit_irprintf("\t.space\t%d\n", space);
+ be_emit_irprintf("\t.space\t%d, 0\n", space);
be_emit_write_line();
}
}
/* a gap */
if (space > 0) {
- be_emit_irprintf("\t.space\t%d\n", space);
+ be_emit_irprintf("\t.space\t%d, 0\n", space);
be_emit_write_line();
}
}
be_emit_write_line();
return;
case OBJECT_FILE_FORMAT_ELF:
+ case OBJECT_FILE_FORMAT_ELF_SPARC:
be_emit_cstring("\t.comm ");
be_gas_emit_entity(entity);
be_emit_irprintf(",%u,%u\n", size, alignment);
be_emit_write_line();
return;
case OBJECT_FILE_FORMAT_ELF:
+ case OBJECT_FILE_FORMAT_ELF_SPARC:
be_emit_cstring("\t.local ");
be_gas_emit_entity(entity);
be_emit_cstring("\n");
char const *be_gas_get_private_prefix(void)
{
- return
- be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O ? "L" :
- ".L";
+ return be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O ? "L" : ".L";
}
void be_gas_emit_entity(const ir_entity *entity)
}
if (entity_is_null(entity)) {
- be_emit_irprintf("\t.space %u\n", get_type_size_bytes(type));
+ be_emit_irprintf("\t.space %u, 0\n", get_type_size_bytes(type));
be_emit_write_line();
- } else if(entity_has_compound_ent_values(entity)) {
+ } else if (entity_has_compound_ent_values(entity)) {
emit_compound_graph_init(env, entity);
} else {
assert(entity->initializer != NULL);
}
}
-/************************************************************************/
-
/* Generate all entities. */
void be_gas_emit_decls(const be_main_env_t *main_env)
{
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