zzy
02a6c684f1
- 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
91 lines
3.6 KiB
C
91 lines
3.6 KiB
C
#include <scc_pe_builder.h>
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#include <scc_pe_idata.h>
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#include <stdio.h>
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int main() {
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const char data[] = "Hello, World from SCC PE Builder!\n\0";
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/* clang-format off */
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const char code[] = {
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// sub rsp, 0x28 ; 为函数调用分配栈空间
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0x48, 0x83, 0xEC, 0x28,
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// lea rcx, [rip + data_offset] ; 将字符串地址加载到RCX（第一个参数）
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0x48, 0x8D, 0x0D, 0x00, 0x00, 0x00, 0x00,
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// call qword ptr [rip + puts_iat] ; 通过IAT调用puts
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0xFF, 0x15, 0x00, 0x00, 0x00, 0x00,
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// add rsp, 0x28 ; 恢复栈空间
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0x48, 0x83, 0xC4, 0x28,
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// xor eax, eax ; 设置返回值为0
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0x33, 0xC0,
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// ret ; 返回
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0xC3,
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};
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/* clang-format on */
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scc_pe_builder_t builder = {0};
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scc_pe_builder_init(&builder, true, 4096, 512);
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scc_pe_reserve_header(&builder, 3);
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scc_pe_section_range code_range =
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scc_pe_reserve_text_section_header(&builder, sizeof(code));
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scc_pe_section_range data_range =
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scc_pe_reserve_data_section_header(&builder, sizeof(data));
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scc_pe_idata_builder_t idata_builder;
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scc_pe_idata_lib_vec_t idata_libs;
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scc_vec_init(idata_libs);
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scc_pe_idata_lib_t ucrtbase;
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ucrtbase.name = "ucrtbase.dll";
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scc_vec_init(ucrtbase.symbol_names);
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scc_vec_push(ucrtbase.symbol_names, "puts");
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scc_vec_push(idata_libs, ucrtbase);
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scc_pe_idata_builder_init(&idata_builder, &idata_libs);
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u32 idata_size = scc_pe_reserve_idata(&idata_builder);
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scc_pe_section_range idata_range =
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scc_pe_reserve_idata_section_header(&builder, idata_size);
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scc_pe_buffer_t idata_buffer =
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scc_pe_construct_idata(&idata_builder, &idata_range);
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u32 entry_point_offset = 0;
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u64 base_address = 0x140000000;
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u32 entry_point = code_range.virual_address + entry_point_offset;
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scc_pe_config_t config = (scc_pe_config_t){
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.machine = IMAGE_FILE_MACHINE_AMD64,
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.time_date_stamp = 0,
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.characteristics =
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IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_LARGE_ADDRESS_AWARE,
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.major_linker_version = 14,
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.minor_linker_version = 0,
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.address_of_entry_point = entry_point,
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.image_base = base_address,
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.major_operating_system_version = 6,
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.minor_operating_system_version = 0,
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.major_image_version = 0,
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.minor_image_version = 0,
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.major_subsystem_version = 6,
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.minor_subsystem_version = 0,
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.subsystem = IMAGE_SUBSYSTEM_WINDOWS_CUI,
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.dll_characteristics = IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA |
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IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE |
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IMAGE_DLLCHARACTERISTICS_NX_COMPAT,
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.size_of_stack_reserve = 0x100000,
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.size_of_stack_commit = 0x1000,
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.size_of_heap_reserve = 0x100000,
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.size_of_heap_commit = 0x1000,
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};
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// FIXME 需要确保宿主机为小端
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*(u32 *)((u8 *)code + 7) =
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(data_range.virual_address + 0) - (code_range.virual_address + 7 + 4);
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*(u32 *)((u8 *)code + 13) =
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(u64)scc_pe_idata_get_symbol_rva(&idata_builder, "puts") -
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(code_range.virual_address + 13 + 4);
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scc_pe_write_header(&builder, &config);
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scc_pe_write_section(&builder, &code_range, (u8 *)code, sizeof(code));
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scc_pe_write_section(&builder, &data_range, (u8 *)data, sizeof(data));
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scc_pe_write_section(&builder, &idata_range,
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scc_vec_unsafe_get_data(idata_buffer),
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scc_vec_size(idata_buffer));
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scc_pe_dump_to_file(&builder, __FILE__ "/../pe_write_idata.exe");
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}
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