f8b9bd2b47
Things are a little better. The LLD that comes with Linux seems to work. Old versions like LLVM 8 haven't been supported since Cosmopolitan v0.2. Running Clang on Windows with --target=x86_64-pc-linux-gnu doesn't seem to work. It has something to do with the recently added .zip section in the linker script. But even if that's removed, LLD on Windows thinks it is building an EFI application for some reason. Linker scripts are such a brittle house of cards, even for just ld.bfd alone.. We should just find a way to run our one true musl-cross-make linux gcc toolchain under Blinkenlights on non-Linux because GCC and Clang are so nondeterministic, inconsistent, and unreproducible when built for other operating systems. We need an actually portable compiler/linker that'll always behave the same way no matter what. See #180 |
||
|---|---|---|
| .. | ||
| alg | ||
| bits | ||
| calls | ||
| crt | ||
| dns | ||
| elf | ||
| fmt | ||
| integral | ||
| intrin | ||
| isystem | ||
| linux | ||
| log | ||
| mem | ||
| nexgen32e | ||
| nt | ||
| ohmyplus | ||
| rand | ||
| runtime | ||
| sock | ||
| stdio | ||
| str | ||
| stubs | ||
| sysv | ||
| testlib | ||
| time | ||
| tinymath | ||
| unicode | ||
| x | ||
| zipos | ||
| assert.h | ||
| complex.h | ||
| dce.h | ||
| disclaimer.inc | ||
| dos.h | ||
| errno.h | ||
| inttypes.h | ||
| libc.mk | ||
| limits.h | ||
| literal.h | ||
| mach.h | ||
| macho.internal.h | ||
| macros-cpp.internal.inc | ||
| macros.internal.h | ||
| macros.internal.inc | ||
| math.h | ||
| notice.inc | ||
| notice.internal.h | ||
| paths.h | ||
| README.md | ||
| zip.h | ||
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.