a3dfe7cb247a22d5140481f711bff0dcbdf22417
1. -g 调试信息 (DWARF5) - config.h 启用 CONFIG_DWARF_VERSION 5 - 生成 .debug_info/.debug_line/.debug_str 等现代调试节 - 函数/变量/行号信息完整 (GDB/VS Code 可调试) 2. 代码优化器验证 - 常量折叠: 2+3 → movl \ (编译期计算) - 死代码消除: if(0) 分支移除 - 不可达代码: i>1000 分支消除 - __OPTIMIZE__ 宏正确设置 3. C23 新特性 (-std=c2x/-std=c23) - __STDC_VERSION__ = 202311L - nullptr 关键字 + nullptr_t 类型 - typeof 泛型 (已有 GNU 扩展) 4. libpcc JIT 演示 (examples/jit_demo.c) - 运行时编译 C 代码字符串 - pcc_set_output_type(MEMORY) JIT 模式 - 调用宿主函数/访问宿主变量 - 验证: jit_run(10) 返回 55 5. VS Code 插件打包 - 修复 package.json 结构 (contributes 嵌套) - 生成 pcc-language-support-0.1.0.vsix (5.9 KB) - 语法高亮 + 构建/运行命令
Tiny C Compiler - C Scripting Everywhere - The Smallest ANSI C compiler ----------------------------------------------------------------------- Features: -------- - SMALL! You can compile and execute C code everywhere, for example on rescue disks. - FAST! tcc generates machine code for i386, x86_64, arm, aarch64 or riscv64. Compiles and links about 10 times faster than 'gcc -O0'. - UNLIMITED! Any C dynamic library can be used directly. TCC is heading toward full ISOC99 compliance. TCC can of course compile itself. - SAFE! tcc includes an optional memory and bound checker. Bound checked code can be mixed freely with standard code. - Compile and execute C source directly. No linking or assembly necessary. Full C preprocessor included. - C script supported : just add '#!/usr/local/bin/tcc -run' at the first line of your C source, and execute it directly from the command line. Documentation: ------------- 1) Installation on Linux, BSD variants or macOS hosts: ./configure make make test make install Notes: On BSD hosts, gmake should be used instead of make. For Windows read tcc-win32.txt. makeinfo must be installed to compile the doc. By default, tcc is installed in /usr/local/bin. ./configure --help shows configuration options. 2) Introduction We assume here that you know ANSI C. Look at the example ex1.c to know what the programs look like. The include file <tcclib.h> can be used if you want a small basic libc include support (especially useful for floppy disks). Of course, you can also use standard headers, although they are slower to compile. You can begin your C script with '#!/usr/local/bin/tcc -run' on the first line and set its execute bits (chmod a+x your_script). Then, you can launch the C code as a shell or perl script :-) The command line arguments are put in 'argc' and 'argv' of the main functions, as in ANSI C. 3) Examples ex1.c: simplest example (hello world). Can also be launched directly as a script: './ex1.c'. ex2.c: more complicated example: find a number with the four operations given a list of numbers (benchmark). ex3.c: compute fibonacci numbers (benchmark). ex4.c: more complicated: X11 program. Very complicated test in fact because standard headers are being used ! As for ex1.c, can also be launched directly as a script: './ex4.c'. ex5.c: 'hello world' with standard glibc headers. tcc.c: TCC can of course compile itself. Used to check the code generator. tcctest.c: auto test for TCC which tests many subtle possible bugs. Used when doing 'make test'. 4) Full Documentation Please read tcc-doc.html to have all the features of TCC. Additional information for the Windows port is in tcc-win32.txt. License: ------- TCC is distributed under the GNU Lesser General Public License (see COPYING file). Fabrice Bellard.
语言
C
95.7%
Assembly
2.2%
Makefile
0.9%
C++
0.5%
Shell
0.3%
其它
0.4%