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feat(ast2ir): 添加左值标识支持以改善表达式处理

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- 在 scc_ast2ir_expr 函数中添加 is_lvalue 参数来区分左值和右值表达式
- 更新二元表达式处理逻辑，特别是赋值操作符的处理
- 改进标识符表达式的处理，根据是否为左值决定返回存储位置还是加载值
- 修复哈希比较函数的实现
- 移除调试相关的注释代码

refactor(parser): 优化语法分析器错误处理和控制流

- 移除不必要的错误恢复辅助注释
- 修改表达式解析的控制流程，将直接返回改为使用 break 语句
- 添加语义分析回调，在解析完成后进行标识符查找和验证

refactor(sema): 增强语义分析阶段的符号表管理

- 改进标识符查找逻辑，增加对非变量标识符的检查
- 扩展声明处理范围，包括变量和参数声明的符号表注册
- 为函数声明添加作用域管理

fix(parser): 修正单元测试中的类型定义

- 将 long long 类型定义改为 int 类型，解决测试兼容性问题

refactor(sccf): 重构文件格式定义和构建器实现

- 重命名符号类型枚举值 OBJECT 为 EXTERN
- 重命名段类型枚举值 RELOC 为 RELOCS
- 修正结构体字段命名的一致性问题
- 重新设计 SCCF 构建器的数据结构和API
- 添加符号表、字符串表和重定位表的构建支持

refactor(target): 重命名Windows PE相关类型定义

- 将 scc_winpe_* 类型重命名为 scc_pe_* 以保持命名一致性

chore: 添加 sccf2target 模块用于格式转换

- 创建新的库模块用于 SCCF 到目标格式的转换
- 实现 PE 格式转换的基本功能
- 添加示例程序演示格式转换过程
This commit is contained in:
zzy
2026-03-19 12:11:57 +08:00
parent 5f915ba8d3
commit 02a6c684f1
18 changed files with 575 additions and 101 deletions
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97
libs/sccf/src/sccf_builder.c
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@@ -3,12 +3,53 @@
void sccf_builder_init(sccf_builder_t *builder) {
builder->aligned = 64;
sccf_init(&builder->sccf);
scc_strpool_init(&builder->strpool);
scc_hashtable_init(&builder->str2offset,
(scc_hashtable_hash_func_t)scc_strhash32,
(scc_hashtable_equal_func_t)scc_strcmp);
scc_hashtable_init(&builder->str2sym,
(scc_hashtable_hash_func_t)scc_strhash32,
(scc_hashtable_equal_func_t)scc_strcmp);
scc_vec_init(builder->strtab);
scc_vec_init(builder->relocs);
scc_vec_init(builder->syms);
scc_vec_init(builder->symtab);
///< Push null
scc_vec_push(builder->strtab, (char)'\0');
///< Push null
scc_vec_push(builder->symtab, (sccf_sym_t){0});
}
usize sccf_builder_add_symbol(sccf_builder_t *builder, const char *name,
sccf_sym_t *sym) {
usize offset = 0;
offset = (usize)scc_hashtable_get(&builder->str2offset, name);
if (offset == 0) {
offset = scc_vec_size(builder->strtab);
scc_hashtable_set(&builder->str2offset, name, (void *)offset);
while (*name) {
scc_vec_push(builder->strtab, *name);
name++;
}
scc_vec_push(builder->strtab, '\0');
}
sym->name_offset = offset;
usize sym_idx = scc_vec_size(builder->symtab);
offset = (usize)scc_hashtable_get(&builder->str2sym, name);
if (offset == 0) {
scc_hashtable_set(&builder->str2sym, name, (void *)sym_idx);
}
scc_vec_push(builder->symtab, *sym);
return sym_idx;
}
usize sccf_builder_get_symbol_idx(sccf_builder_t *builder, const char *name) {
usize offset = (usize)scc_hashtable_get(&builder->str2sym, name);
return offset;
}
void sccf_builder_add_reloc(sccf_builder_t *builder, sccf_reloc_t reloc) {
scc_vec_push(builder->relocs, reloc);
}
void sccf_builder_add_section(sccf_builder_t *builder,
@@ -20,14 +61,58 @@ void sccf_builder_add_section(sccf_builder_t *builder,
scc_vec_push(builder->sccf.sect_datas, *sect_data);
}
void sccf_builder_to_buffer(sccf_builder_t *builder, sccf_buffer_t *buffer) {
Assert(builder != null && buffer != null);
const sccf_t *sccf_builder_to_sccf(sccf_builder_t *builder) {
// TODO symtab strtab reloc
// sccf_sect_header_t symtab_header;
// sccf_sect_data_t symtab_data;
// sccf_builder_add_section(builder, &symtab_header, &symtab_data);
sccf_sect_header_t sect_header;
if (scc_vec_size(builder->strtab)) {
sect_header = (sccf_sect_header_t){
.name = ".strtab",
.info = 0,
.data_size = scc_vec_size(builder->strtab),
.addralign = 1,
.size = scc_vec_size(builder->strtab),
.sccf_sect_type = SCCF_SECT_STRTAB,
};
// TODO 转换成 u8[]
sccf_builder_add_section(builder, &sect_header,
(void *)&builder->strtab);
}
sccf_write(&builder->sccf, buffer);
if (scc_vec_size(builder->symtab)) {
sect_header = (sccf_sect_header_t){
.name = ".symtab",
.info = 0,
.data_size = scc_vec_size(builder->symtab),
.addralign = 1,
.size = scc_vec_size(builder->symtab),
.sccf_sect_type = SCCF_SECT_SYMTAB,
};
// TODO 转换成 u8[]
sccf_builder_add_section(builder, &sect_header,
(void *)&builder->symtab);
}
if (scc_vec_size(builder->relocs)) {
sect_header = (sccf_sect_header_t){
.name = ".relocs",
.info = 0,
.data_size = scc_vec_size(builder->relocs),
.addralign = 1,
.size = scc_vec_size(builder->relocs),
.sccf_sect_type = SCCF_SECT_RELOCS,
};
// TODO 转换成 u8[]
sccf_builder_add_section(builder, &sect_header,
(void *)&builder->relocs);
}
return &builder->sccf;
}
void sccf_builder_to_buffer(sccf_builder_t *builder, sccf_buffer_t *buffer) {
Assert(builder != null && buffer != null);
sccf_write(sccf_builder_to_sccf(builder), buffer);
}
void sccf_builder_to_file(sccf_builder_t *builder, const char *file_path) {