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Basic global struct example

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This commit is contained in:
gingerBill
2023-07-08 13:02:17 +01:00
parent f0e77a309d
commit 8ebb84ad1e
2 changed files with 30 additions and 5 deletions
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2
src/tilde/tb.h
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@@ -632,7 +632,7 @@ struct TB_Arena {
};
// allocates in 16MiB chunks and does linear allocation in 'em
TB_Arena* tb_default_arena(void);
TB_API TB_Arena* tb_default_arena(void);
////////////////////////////////
// Module management

33
src/tilde_backend.cpp
View File

@@ -19,8 +19,24 @@ bool tb_generate_code(Checker *c) {
defer (tb_module_destroy(m));
tb_module_set_tls_index(m, "_tls_index");
TB_Arena *arena = tb_default_arena();
TB_Arena *arena = nullptr;
TB_Global *str = nullptr;
{
TB_Global *str_data = nullptr;
{
str_data = tb_global_create(m, "csb$1", nullptr, TB_LINKAGE_PRIVATE);
tb_global_set_storage(m, tb_module_get_rdata(m), str_data, 8, 1, 1);
void *region = tb_global_add_region(m, str_data, 0, 8);
memcpy(region, "Hellope\x00", 8);
}
str = tb_global_create(m, "global$str", nullptr, TB_LINKAGE_PRIVATE);
tb_global_set_storage(m, tb_module_get_rdata(m), str, 16, 8, 2);
tb_global_add_symbol_reloc(m, str, 0, cast(TB_Symbol *)str_data);
void *len = tb_global_add_region(m, str, 8, 8);
*cast(i64 *)len = 7;
}
{
TB_PrototypeParam printf_ret = {TB_TYPE_I32};
@@ -34,9 +50,18 @@ bool tb_generate_code(Checker *c) {
tb_function_set_prototype(p, main_proto, arena);
TB_Node *params[2] = {};
params[0] = tb_inst_cstring(p, "Hellope %s!\n");
params[1] = tb_inst_cstring(p, "World");
auto str_ptr = tb_inst_get_symbol_address(p, cast(TB_Symbol *)str);
auto str_data_ptr_ptr = tb_inst_member_access(p, str_ptr, 0);
auto str_data_ptr = tb_inst_load(p, TB_TYPE_PTR, str_data_ptr_ptr, 1, false);
auto str_len_ptr = tb_inst_member_access(p, str_ptr, 8);
auto str_len = tb_inst_load(p, TB_TYPE_I64, str_len_ptr, 8, false);
TB_Node *params[4] = {};
params[0] = tb_inst_cstring(p, "%.*s %s!\n");
params[1] = tb_inst_trunc(p, str_len, TB_TYPE_I32);
params[2] = str_data_ptr;
params[3] = tb_inst_cstring(p, "World");
TB_MultiOutput output = tb_inst_call(p, printf_proto, tb_inst_get_symbol_address(p, cast(TB_Symbol *)printf_proc), gb_count_of(params), params);
gb_unused(output);