mirror of https://github.com/flysand7/ciabatta.git
138 lines
5.6 KiB
Markdown
138 lines
5.6 KiB
Markdown
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# Ciabatta
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Ciabatta - An implementation of cross-platform C standard library with the
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following goals:
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- Providing C standard library that fully implements all C features. Some
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standard libraries lack many features of C11 and C23, like threads.h or
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aligned_alloc in case of MSVCRT.
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- Making standard library that is easy to port to other platforms, for example
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an embedded platform or a custom operating system.
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- Allowing applications to debug and step into standard library functions
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(Hello MSVCRT!)
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- Reasonably fast CRT compared to MSVCRT and glibc, e.g. making malloc use
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a faster allocator, avoid runtime checks where possible, heavely rely on
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inlining.
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- Extend the possibilities of C standard library with commonly used
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functionality: implementing POSIX standard, capability for unicode
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processing, API to traverse directories, hash functions, better strings API,
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crash handlers.
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Ciabatta is not binary-compatible with other CRT libraries. That means that any
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libraries that your project uses have to also be compiled with Ciabatta,
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otherwise you will run into issues.
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Please note that as of today ciabatta is still during development and does not
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implement many of the features that need to be implemented. Using it at current
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time is discouraged.
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## Current Status
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### C23 standard library
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| Header | Description | Status |
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| --------------- | ------------------------------------ | ----------- |
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| <assert.h> | Diagnostics. | none |
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| <complex.h> | Complex arithmetic. | none |
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| <ctype.h> | Character handling. | none |
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| <errno.h> | Errors. | Implemented |
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| <fenv.h> | Floating-point environment. | none |
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| <float.h> | Characteristics of floating types. | none |
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| <inttypes.h> | Format conversion of integer types. | none |
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| <iso646.h> | Alternative spellings. | none |
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| <limits.h> | Sizes of integer types. | Implemented |
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| <locale.h> | Localization. | none |
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| <math.h> | Mathematics. | none |
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| <setjmp.h> | Nonlocal jumps. | [1] |
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| <signal.h> | Signal handling. | none |
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| <stdalign.h> | Alignment. | none |
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| <stdarg.h> | Variable arguments. | none |
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| <stdatomic.h> | Atomics. | [1] |
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| <stdbit.h> | Bit and byte utilities | none |
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| <stdbool.h> | Boolean type and values. | none |
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| <stddef.h> | Common definitions. | none |
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| <stdint.h> | Integer types. | Implemented |
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| <stdio.h> | Input/output. | Partial |
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| <stdlib.h> | General utilities. | none |
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| <stdnoreturn.h> | `_Noreturn`. | none |
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| <string.h> | String handling. | none |
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| <tgmath.h> | Type-generic math. | none |
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| <threads.h> | Threads. | Partial |
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| <time.h> | Date and time. | none |
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| <uchar.h> | Unicode utilities. | none |
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| <wchar.h> | Wide character utilities. | none |
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| <wctype.h> | Wide character utilities. | none |
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[1] Implemented by compilers
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## Support
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Operating System:
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- Windows
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- Linux
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Processor Architecture:
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- x86-64
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This library is supposed to be extensible to other platforms, meaning that
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you can write an OS layer for another OS and use the rest of the CRT
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functionality.
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## Building ciabatta
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Before proceeding please note that ciabatta can only be compiled and used
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with `clang` and `cuik`. It may be able to work with `gcc` with some minor adjustments
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but I never tested it.
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You can get `cuik` in [the GitHub repository](https://github.com/RealNeGate/Cuik)
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On linux you can simply run `./build.py` script. On windows can run
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it with `py build.py` command.
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The script accepts some command-line arguments, which you can check by running
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```
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$ ./build.py -h
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```
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## Usage
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Grab the following files into your project's (or any other) directory:
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- The `./include` folder
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- The `./lib` folder
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- (Windows only) The `./utf8` folder
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In order to compile your project with ciabatta see the following sections,
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assuming you put all files mentioned above in the `./ciabatta` folder
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### Compiling with ciabatta on windows
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1. Add the following flags to your compilation command:
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`-nostdlib -I ./ciabatta/include utf8.obj -mfma`
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2. Add the following sources to the compile command:
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`./ciabatta/lib/cia.lib`
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**Note:** The `include` folder refers to the folder you copied from ciabatta. Set the path to it accordingly.
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### Compiling with ciabatta on linux
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1. Add the following flags to your compilation command:
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- `-nostdlib -I ./ciabatta/include -mfma`
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2. Link to the following libraries
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- `./ciabatta/lib/cia.a`
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3. Specify the ciabatta dynamic loader in linker options
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- `-Wl,-dynamic-linker,lib/ld-cia.so`
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## Contributing
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Pull requests welcome and accepted in any form.
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## License
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See [the license file](license)
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