cosmopolitan/libc
2021-02-03 13:50:08 -05:00
..
alg finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
bits wip on intellisense (again) 2021-02-02 11:14:45 -05:00
calls finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
crt Make C memory safe like Rust 2021-02-01 03:58:46 -08:00
crypto Fix link order in cosmopolitan.a 2021-01-16 12:05:41 -08:00
dns Fix link order in cosmopolitan.a 2021-01-16 12:05:41 -08:00
elf Implement more security stuff 2021-02-02 20:21:06 -08:00
fmt Make more functions friendly to Address Sanitizer 2021-02-02 03:45:31 -08:00
integral finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
intrin Eliminate some flakes 2021-02-03 06:25:27 -08:00
isystem Fold conv package into fmt 2020-12-09 16:52:00 -08:00
linux Improve documentation 2020-12-27 07:02:35 -08:00
log finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
mem Fix XNU / FreeBSD / OpenBSD / RHEL5 / NT bugs 2021-01-25 18:31:17 -08:00
nexgen32e Implement more security stuff 2021-02-02 20:21:06 -08:00
nt Eliminate some flakes 2021-02-03 06:25:27 -08:00
ohmyplus Fix link order in cosmopolitan.a 2021-01-16 12:05:41 -08:00
rand Eliminate some flakes 2021-02-03 06:25:27 -08:00
runtime finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
sock Eliminate some flakes 2021-02-03 06:25:27 -08:00
stdio Delete LIBC_CALLS_HEFTY 2021-02-02 22:17:53 -08:00
str finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
stubs Eliminate some flakes 2021-02-03 06:25:27 -08:00
sysv Make mmap() work better 2021-02-03 00:10:12 -08:00
testlib finish intellisense support and sync with upstream 2021-02-03 13:50:08 -05:00
time Make more functions friendly to Address Sanitizer 2021-02-02 03:45:31 -08:00
tinymath Remove sun musl fdlibm math library 2021-01-31 18:25:16 -08:00
unicode Fix link order in cosmopolitan.a 2021-01-16 12:05:41 -08:00
x Delete LIBC_CALLS_HEFTY 2021-02-02 22:17:53 -08:00
zipos Fix XNU / FreeBSD / OpenBSD / RHEL5 / NT bugs 2021-01-25 18:31:17 -08:00
assert.h Add chibicc 2020-12-06 16:20:21 -08:00
complex.h Make improvements 2020-12-01 03:43:40 -08:00
dce.h Fix XNU / FreeBSD / OpenBSD / RHEL5 / NT bugs 2021-01-25 18:31:17 -08:00
disclaimer.inc Initial import 2020-06-15 07:18:57 -07:00
errno.h Add minor improvements and cleanup 2020-10-27 03:39:46 -07:00
inttypes.h Initial import 2020-06-15 07:18:57 -07:00
libc.mk Make more functions friendly to Address Sanitizer 2021-02-02 03:45:31 -08:00
limits.h Add x86_64-linux-gnu emulator 2020-08-25 04:43:42 -07:00
literal.h Initial import 2020-06-15 07:18:57 -07:00
mach.h Initial import 2020-06-15 07:18:57 -07:00
macho.internal.h Get Cosmopolitan into releasable state 2020-11-25 08:19:00 -08:00
macros-cpp.internal.inc Replace .pushsection directives (#30) 2021-01-10 13:36:31 -08:00
macros.h Make minor improvements 2020-12-23 23:42:56 -08:00
macros.internal.inc Implement more security stuff 2021-02-02 20:21:06 -08:00
math.h Further refine documentation 2020-12-27 17:05:03 -08:00
notice.inc Change license 2020-12-27 17:18:44 -08:00
notice.internal.h Add epoll and do more release readiness changes 2020-11-28 12:01:51 -08:00
paths.h Initial import 2020-06-15 07:18:57 -07:00
README.md Add x86_64-linux-gnu emulator 2020-08-25 04:43:42 -07:00
zip.h Add fixes performance and static web server 2020-10-05 23:11:49 -07:00

SYNOPSIS

Cosmopolitan Standard Library.

OVERVIEW

This directory defines static archives defining functions, like printf(), mmap(), win32, etc. Please note that the Cosmopolitan build configuration doesn't link any C/C++ library dependencies by default, so you still have the flexibility to choose the one provided by your system. If you'd prefer Cosmopolitan, just add $(LIBC) and $(CRT) to your linker arguments.

Your library is compromised of many bite-sized static archives. We use the checkdeps tool to guarantee that the contents of the archives are organized in a logical way that's easy to use with or without our makefile infrastructure, since there's no cyclic dependencies.

The Cosmopolitan Library exports only the most stable canonical system calls for all supported operating systems, regardless of which platform is used for compilation. We polyfill many of the APIs, e.g. read(), write() so they work consistently everywhere while other apis, e.g. CreateWindowEx(), might only work on one platform, in which case they become no-op functions on others.

Cosmopolitan polyfill wrappers will usually use the dollar sign naming convention, so they may be bypassed when necessary. This same convention is used when multiple implementations of string library and other performance-critical function are provided to allow Cosmopolitan to go fast on both old and newer computers.

We take an approach to configuration that relies heavily on the compiler's dead code elimination pass (libc/dce.h). Most of the code is written so that, for example, folks not wanting support for OpenBSD can flip a bit in SUPPORT_VECTOR and that code will be omitted from the build. The same is true for builds that are tuned using -march=native which effectively asks the library to not include runtime support hooks for x86 processors older than what you use.

Please note that, unlike Cygwin or MinGW, Cosmopolitan does not achieve broad support by bolting on a POSIX emulation layer. We do nothing more than (in most cases) stateless API translations that get you 90% of the way there in a fast lightweight manner. We therefore can't address some of the subtle differences, such as the nuances of absolute paths on Windows. Our approach could be compared to something more along the lines of, "the Russians just used a pencil to write in space", versus spending millions researching a pen like NASA.