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mirror of https://github.com/jart/cosmopolitan
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Justine Tunney e6481efa80 Use make SILENT=0 by default 
Silent build configs are good for the core developers of a project
because they understand the build config, however it's an obstacle
for newcomers who'll be better served by seeing the build commands
2021-01-31 11:30:42 -08:00
.github Create FUNDING.yml 2021-01-29 14:56:22 -08:00
ape Increase Windows stack size (#32) 2021-01-30 10:08:28 -08:00
build Use make SILENT=0 by default 2021-01-31 11:30:42 -08:00
dsp Fix link order in cosmopolitan.a 2021-01-16 12:05:41 -08:00
examples Implement getcwd() for XNU 2021-01-30 08:54:12 -08:00
libc Improve fcntl(F_{SET,GET}FL) implementation (#32) 2021-01-30 13:10:32 -08:00
net Fix XNU / FreeBSD / OpenBSD / RHEL5 / NT bugs 2021-01-25 18:31:17 -08:00
test Improve fcntl(F_{SET,GET}FL) implementation (#32) 2021-01-30 13:10:32 -08:00
third_party Work towards improving signals and processes 2021-01-27 19:34:02 -08:00
tool Make PATH search do the right thing w/ empty path 2021-01-29 01:27:09 -08:00
usr/share Add epoll and do more release readiness changes 2020-11-28 12:01:51 -08:00
.clang-format Add x86_64-linux-gnu emulator 2020-08-25 04:43:42 -07:00
.gitignore Make terminal ui binaries work well everywhere 2020-10-19 06:38:31 -07:00
Makefile Cosmopolitan 0.1 2021-01-28 16:19:10 -08:00
NOTICE Change license 2020-12-27 17:18:44 -08:00
README.md Cosmopolitan 0.1.2 2021-01-30 10:13:13 -08:00

README.md

Cosmopolitan

Cosmopolitan Libc makes C a build-once run-anywhere language, like Java, except it doesn't need an interpreter or virtual machine. Instead, it reconfigures stock GCC to output a POSIX-approved polyglot format that runs natively on Linux + Mac + Windows + FreeBSD + OpenBSD + BIOS with the best possible performance and the tiniest footprint imaginable.

Background

For an introduction to this project, please read the αcτµαlly pδrταblε εxεcµταblε blog post and cosmopolitan libc website. We also have API documentation.

Getting Started

Here's how to get started with the freestanding hermetically-sealed monolithic source repository:

tar xf cosmopolitan-0.1.2.tar.gz  # see our releases page
cd cosmo
make -j12
o//examples/hello.com

Here's how to get started with the amalgamated binaries, which let you bring your own build system:

unzip cosmopolitan-amalgamated-0.1.2.zip  # see our releases page
echo 'main() { printf("hello world\n"); }' >hello.c
gcc -g -O -static -fno-pie -no-pie -mno-red-zone -nostdlib -nostdinc \
  -o hello.com.dbg hello.c -Wl,--gc-sections -Wl,-z,max-page-size=0x1000 -fuse-ld=bfd \
  -Wl,-T,ape.lds -include cosmopolitan.h crt.o ape.o cosmopolitan.a
objcopy -SO binary hello.com.dbg hello.com
./hello.com