const be_main_env_t *main_env;
} be_gas_decl_env_t;
+static void emit_section_macho(be_gas_section_t section)
+{
+ be_gas_section_t base = section & GAS_SECTION_TYPE_MASK;
+ be_gas_section_t flags = section & ~GAS_SECTION_TYPE_MASK;
+ const char *name;
+
+ if (current_section == section)
+ return;
+ current_section = section;
+
+ /* shortforms */
+ if (flags == 0) {
+ switch (base) {
+ case GAS_SECTION_TEXT: name = "text"; break;
+ case GAS_SECTION_DATA: name = "data"; break;
+ case GAS_SECTION_RODATA: name = "const"; break;
+ case GAS_SECTION_BSS: name = "data"; break;
+ case GAS_SECTION_CONSTRUCTORS: name = "mod_init_func"; break;
+ case GAS_SECTION_DESTRUCTORS: name = "mod_term_func"; break;
+ case GAS_SECTION_PIC_TRAMPOLINES: name = "section\t__IMPORT,__jump_table,symbol_stubs,self_modifying_code+pure_instructions,5"; break;
+ case GAS_SECTION_PIC_SYMBOLS: name = "section\t__IMPORT,__pointers,non_lazy_symbol_pointers"; break;
+ case GAS_SECTION_CSTRING: name = "cstring"; break;
+ default: panic("unsupported scetion type 0x%X", section);
+ }
+ be_emit_irprintf("\t.%s\n", name);
+ be_emit_write_line();
+ } else if (flags & GAS_SECTION_FLAG_COMDAT) {
+ switch (base) {
+ case GAS_SECTION_TEXT: name = "section __TEXT,__textcoal_nt,coalesced,pure_instructions"; break;
+ case GAS_SECTION_BSS:
+ case GAS_SECTION_DATA: name = "section __DATA,__datacoal_nt,coalesced"; break;
+ case GAS_SECTION_RODATA: name = "section __TEXT,__const_coal,coalesced"; break;
+ case GAS_SECTION_CSTRING: name = "section __TEXT,__const_coal,coalesced"; break;
+ default: panic("unsupported scetion type 0x%X", section);
+ }
+ } else {
+ panic("unsupported section type 0x%X\n", section);
+ }
+}
+
+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;
be_gas_section_t flags = section & ~GAS_SECTION_TYPE_MASK;
- static const char *basename[] = {
+ static const char *const basename[] = {
"text", "data", "rodata", "bss", "ctors", "dtors"
};
- static const char *type[] = {
- "", "progbits", "progbits", "nobits", "init_array", "fini_array"
+ static const char *const type[] = {
+ "progbits", "progbits", "progbits", "nobits", "init_array", "fini_array"
};
+ 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))
return;
current_section = section;
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
emit_section(section, NULL);
}
+static tarval *get_initializer_tarval(const ir_initializer_t *initializer)
+{
+ if (initializer->kind == IR_INITIALIZER_TARVAL)
+ return initializer->tarval.value;
+ if (initializer->kind == IR_INITIALIZER_CONST) {
+ ir_node *node = initializer->consti.value;
+ if (is_Const(node)) {
+ return get_Const_tarval(node);
+ }
+ }
+ return get_tarval_undefined();
+}
+
static int initializer_is_string_const(const ir_initializer_t *initializer)
{
size_t i, len;
ir_initializer_t *sub_initializer
= initializer->compound.initializers[i];
- if (sub_initializer->kind != IR_INITIALIZER_TARVAL)
+ tv = get_initializer_tarval(sub_initializer);
+ if (!tarval_is_constant(tv))
return 0;
- tv = sub_initializer->tarval.value;
mode = get_tarval_mode(tv);
-
if (!mode_is_int(mode) || get_mode_size_bits(mode) != 8)
return 0;
} 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(", ");
panic("Can't dump a tarval with %d bytes", bytes);
}
-/**
- * Return the label prefix for labeled blocks.
- */
-const char *be_gas_block_label_prefix(void)
-{
- return ".LG";
-}
-
/**
* Return the label prefix for labeled instructions.
*/
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);
remaining_space = type_size - len;
assert(remaining_space >= 0);
if (remaining_space > 0) {
- be_emit_irprintf("\t.zero\t%d\n", remaining_space);
+ be_emit_irprintf("\t.space\t%d\n", remaining_space);
}
}
const ir_initializer_t *sub_initializer
= get_initializer_compound_value(initializer, i);
- tarval *tv = get_initializer_tarval_value(sub_initializer);
+ tarval *tv = get_initializer_tarval(sub_initializer);
int c = get_tarval_long(tv);
switch (c) {
static void emit_common(const ir_entity *entity)
{
- const char *name = get_entity_ld_name(entity);
- unsigned size = get_type_size_bytes(get_entity_type(entity));
- unsigned alignment = get_effective_entity_alignment(entity);
- ir_visibility visibility = get_entity_visibility(entity);
- ir_linkage linkage = get_entity_linkage(entity);
-
- if (visibility == ir_visibility_local
- || visibility == ir_visibility_private) {
- /* counter the visibility_global effect of .comm
- * ... and to be honest I have no idea what local common symbols
- * are good for...
- */
- be_emit_irprintf("\t.local %s\n", name);
+ unsigned size = get_type_size_bytes(get_entity_type(entity));
+ unsigned alignment = get_effective_entity_alignment(entity);
+
+ if (get_entity_linkage(entity) & IR_LINKAGE_WEAK) {
+ emit_weak(entity);
+ }
+
+ switch (be_gas_object_file_format) {
+ case OBJECT_FILE_FORMAT_MACH_O:
+ be_emit_cstring("\t.comm ");
+ be_gas_emit_entity(entity);
+ be_emit_irprintf(",%u,%u\n", size, log2_floor(alignment));
+ 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_COFF:
+ be_emit_cstring("\t.comm ");
+ be_gas_emit_entity(entity);
+ be_emit_irprintf(",%u # %u\n", size, alignment);
+ be_emit_write_line();
+ return;
}
- if (linkage & IR_LINKAGE_WEAK) {
+ panic("invalid object file format");
+}
+
+static void emit_local_common(const ir_entity *entity)
+{
+ unsigned size = get_type_size_bytes(get_entity_type(entity));
+ unsigned alignment = get_effective_entity_alignment(entity);
+
+ if (get_entity_linkage(entity) & IR_LINKAGE_WEAK) {
emit_weak(entity);
}
switch (be_gas_object_file_format) {
case OBJECT_FILE_FORMAT_MACH_O:
- be_emit_irprintf("\t.comm %s,%u,%u\n", name, size,
- log2_floor(alignment));
+ be_emit_cstring("\t.lcomm ");
+ be_gas_emit_entity(entity);
+ be_emit_irprintf(",%u,%u\n", size, log2_floor(alignment));
be_emit_write_line();
return;
case OBJECT_FILE_FORMAT_ELF:
- be_emit_irprintf("\t.comm %s,%u,%u\n", name, size, alignment);
+ case OBJECT_FILE_FORMAT_ELF_SPARC:
+ be_emit_cstring("\t.local ");
+ be_gas_emit_entity(entity);
+ be_emit_cstring("\n");
+ be_emit_write_line();
+ 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_COFF:
- be_emit_irprintf("\t.comm %s,%u # %u\n", name, size, alignment);
+ be_emit_cstring("\t.lcomm ");
+ be_gas_emit_entity(entity);
+ be_emit_irprintf(",%u # %u\n", size, alignment);
be_emit_write_line();
return;
}
/* we can only do PIC code on macho so far */
assert(be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O);
- be_emit_ident(get_entity_ld_ident(entity));
+ be_gas_emit_entity(entity);
be_emit_cstring(":\n");
be_emit_write_line();
be_emit_cstring("\t.indirect_symbol ");
}
}
+char const *be_gas_get_private_prefix(void)
+{
+ return be_gas_object_file_format == OBJECT_FILE_FORMAT_MACH_O ? "L" : ".L";
+}
+
void be_gas_emit_entity(const ir_entity *entity)
{
if (entity->type == firm_code_type) {
ir_label_t label = get_entity_label(entity);
- be_emit_string(be_gas_block_label_prefix());
- be_emit_irprintf("%lu", label);
+ be_emit_irprintf("%s_%lu", be_gas_get_private_prefix(), label);
return;
}
if (get_entity_visibility(entity) == ir_visibility_private) {
- be_emit_cstring(".L");
+ be_emit_string(be_gas_get_private_prefix());
}
be_emit_ident(get_entity_ld_ident(entity));
}
+void be_gas_emit_block_name(const ir_node *block)
+{
+ if (has_Block_entity(block)) {
+ ir_entity *entity = get_Block_entity(block);
+ be_gas_emit_entity(entity);
+ } else {
+ be_emit_irprintf("%s%ld", be_gas_get_private_prefix(), get_irn_node_nr(block));
+ }
+}
+
/**
* Dump a global entity.
*
* @param env the gas output environment
* @param ent the entity to be dumped
*/
-static void emit_global(be_gas_decl_env_t *env, const ir_entity *ent)
+static void emit_global(be_gas_decl_env_t *env, const ir_entity *entity)
{
- ir_type *type = get_entity_type(ent);
- ident *ld_ident = get_entity_ld_ident(ent);
- unsigned alignment = get_effective_entity_alignment(ent);
- be_gas_section_t section = determine_section(env, ent);
- ir_visibility visibility = get_entity_visibility(ent);
- ir_linkage linkage = get_entity_linkage(ent);
+ ir_type *type = get_entity_type(entity);
+ ident *ld_ident = get_entity_ld_ident(entity);
+ unsigned alignment = get_effective_entity_alignment(entity);
+ be_gas_section_t section = determine_section(env, entity);
+ ir_visibility visibility = get_entity_visibility(entity);
+ ir_linkage linkage = get_entity_linkage(entity);
/* block labels are already emittet in the code */
if (type == firm_code_type)
if (is_Method_type(type) && section != GAS_SECTION_PIC_TRAMPOLINES) {
/* functions with graph are already emitted with
* be_gas_emit_function_prolog */
- if (get_entity_irg(ent) == NULL) {
- emit_visibility(ent);
+ if (get_entity_irg(entity) == NULL) {
+ emit_visibility(entity);
}
return;
}
- be_dbg_variable(ent);
+ be_dbg_variable(entity);
- if (section == GAS_SECTION_BSS && (linkage & IR_LINKAGE_MERGE)) {
- if (get_entity_visibility(ent) == ir_visibility_external) {
- panic("merge link semantic not supported for extern entities");
+ if (section == GAS_SECTION_BSS) {
+ ir_visibility visibility = get_entity_visibility(entity);
+
+ switch (visibility) {
+ case ir_visibility_local:
+ case ir_visibility_private:
+ emit_local_common(entity);
+ return;
+ case ir_visibility_default:
+ if (linkage & IR_LINKAGE_MERGE) {
+ emit_common(entity);
+ return;
+ }
+ break;
+ case ir_visibility_external:
+ if (linkage & IR_LINKAGE_MERGE)
+ panic("merge link semantic not supported for extern entities");
+ break;
}
- emit_common(ent);
- return;
}
- emit_visibility(ent);
+ emit_visibility(entity);
if (visibility == ir_visibility_external) {
/* nothing to do for externally defined values */
return;
if (!is_po2(alignment))
panic("alignment not a power of 2");
- emit_section(section, ent);
+ emit_section(section, entity);
if (section == GAS_SECTION_PIC_TRAMPOLINES
|| section == GAS_SECTION_PIC_SYMBOLS) {
- emit_indirect_symbol(ent, section);
+ emit_indirect_symbol(entity, section);
return;
}
if (be_gas_object_file_format == OBJECT_FILE_FORMAT_ELF
&& be_gas_emit_types) {
be_emit_cstring("\t.type\t");
- be_gas_emit_entity(ent);
+ be_gas_emit_entity(entity);
be_emit_cstring(", ");
be_emit_char(be_gas_elf_type_char);
be_emit_cstring("object\n\t.size\t");\
- be_gas_emit_entity(ent);
+ be_gas_emit_entity(entity);
be_emit_irprintf(", %u\n", get_type_size_bytes(type));
}
if (get_id_str(ld_ident)[0] != '\0') {
- be_gas_emit_entity(ent);
+ be_gas_emit_entity(entity);
be_emit_cstring(":\n");
be_emit_write_line();
}
- if (entity_is_null(ent)) {
- be_emit_irprintf("\t.zero %u\n", get_type_size_bytes(type));
+ if (entity_is_null(entity)) {
+ be_emit_irprintf("\t.space %u\n", get_type_size_bytes(type));
be_emit_write_line();
- } else if(entity_has_compound_ent_values(ent)) {
- emit_compound_graph_init(env, ent);
+ } else if (entity_has_compound_ent_values(entity)) {
+ emit_compound_graph_init(env, entity);
} else {
- assert(ent->initializer != NULL);
- emit_initializer(env, ent);
+ assert(entity->initializer != NULL);
+ emit_initializer(env, entity);
}
}
projects / libfirm / blobdiff