Commit graph

18 commits

Author SHA1 Message Date
Justine Tunney
ee6566a152
Further improve usability of cosmocc
- Support -s flag in cosmocc
- Support posix_spawn() setsid() feature
- Disable monorepo debug path prefix stripping
2023-07-10 05:55:00 -07:00
Justine Tunney
f7ae50462a
Make improvements
- Fix unused local variable errors
- Remove yoinks from sigaction() header
- Add nox87 and aarch64 to github actions
- Fix cosmocc -fportcosmo in linking mode
- It's now possible to build `make m=llvm o/llvm/libc`
2023-07-10 04:35:14 -07:00
Justine Tunney
226375933a
Implement more toolchain fixes 2023-06-18 05:39:31 -07:00
Justine Tunney
0409096658
Get us closer to building busybox
This change undefines __linux__ and adds APIs like clock_settime(). The
gosh darned getopt_long() API has been reintroduced, thanks to OpenBSD.
2023-06-18 04:13:45 -07:00
Justine Tunney
d7c79f43ef
Clean up more code
- Found some bugs in LLVM compiler-rt library
- The useless LIBC_STUBS package is now deleted
- Improve the overflow checking story even further
- Get chibicc tests working in MODE=dbg mode again
- The libc/isystem/ headers now have correctly named guards
2023-06-18 01:00:05 -07:00
Justine Tunney
c3440d040c
Make improvements
- More timspec_*() and timeval_*() APIs have been introduced.
- The copyfd() function is now simplified thanks to POSIX rules.
- More Cosmo-specific APIs have been moved behind the COSMO define.
- The setitimer() polyfill for Windows NT is now much higher quality.
- Fixed build error for MODE=aarch64 due to -mstringop-strategy=loop.
- This change introduces `make MODE=nox87 toolchain` which makes it
  possible to build programs using your cosmocc toolchain that don't
  have legacy fpu instructions. This is useful, for example, if you
  want to have a ~22kb tinier blink virtual machine.
2023-06-15 14:50:53 -07:00
Justine Tunney
4778cd4d27
Fix bugs in termios library and cleanup code
This change fixes an issue with the tcflow() magic numbers that was
causing bash to freeze up on Linux. While auditing termios polyfills,
several other issues were identified with XNU/BSD compatibility.

Out of an abundance of caution this change undefines as much surface
area from libc/calls/struct/termios.h as possible, so that autoconf
scripts are less likely to detect non-POSIX teletypewriter APIs that
haven't been polyfilled by Cosmopolitan.

This is a *breaking change* for your static archives in /opt/cosmos if
you use the cosmocc toolchain. That's because this change disables the
ioctl() undiamonding trick for code outside the monorepo, specifically
because it'll lead to brittle ABI breakages like this. If you're using
the cosmocc toolchain, you'll need to rebuild libraries like ncurses,
readline, etc. Yes diamonds cause bloat. To work around that, consider
using tcgetwinsize() instead of ioctl(TIOCGWINSZ) since it'll help you
avoid pulling every single ioctl-related polyfill into the linkage.

The cosmocc script was specifying -DNDEBUG for some reason. It's fixed.
2023-06-14 19:30:52 -07:00
Justine Tunney
5a6a4819d4
Fix -iquote in cosmocc toolchain 2023-06-10 16:35:53 -07:00
Justine Tunney
2676ec55de
Make improvements to cosmocc toolchain 2023-06-10 15:50:01 -07:00
Justine Tunney
8ff48201ca
Rewrite .zip.o file linker
This change takes an entirely new approach to the incremental linking of
pkzip executables. The assets created by zipobj.com are now treated like
debug data. After a .com.dbg is compiled, fixupobj.com should be run, so
it can apply fixups to the offsets and move the zip directory to the end
of the file. Since debug data doesn't get objcopy'd, a new tool has been
introduced called zipcopy.com which should be run after objcopy whenever
a .com file is created. This is all automated by the `cosmocc` toolchain
which is rapidly becoming the new recommended approach.

This change also introduces the new C23 checked arithmetic macros.
2023-06-10 09:29:44 -07:00
Justine Tunney
23e235b7a5
Fix bugs in cosmocc toolchain
This change integrates e58abc1110b335a3341e8ad5821ad8e3880d9bb2 from
https://github.com/ahgamut/musl-cross-make/ which fixes the issues we
were having with our C language extension for symbolic constants. This
change also performs some code cleanup and bug fixes to getaddrinfo().
It's now possible to compile projects like ncurses, readline and python
without needing to patch anything upstream, except maybe a line or two.
Pretty soon it should be possible to build a Linux distro on Cosmo.
2023-06-08 23:44:03 -07:00
Justine Tunney
22f81a8d50
Improve cosmocc / cosmoc++ toolchain scripts
- Get out of the red zone
- Generate --ftrace nops unless -Os is passed
- Intercept -o path to generate .com / .com.dbg appropriately
2023-06-08 14:29:22 -07:00
Justine Tunney
f554dd800e
Make it possible to log kprintf() to file
It's now possible to compile Emacs using cosmocc. However we need to
troubleshoot why it's event loop isn't working correctly at runtime.
2023-06-05 04:16:15 -07:00
Justine Tunney
39f20dbb13
Upgrade to Cosmopolitan GCC 11.2.0 for x86_64 2023-06-05 02:06:18 -07:00
Justine Tunney
fc82f77a46
Fix bug in cosmocc / cosmoc++ scripts
The necessary flags weren't being passed when compiling programs as a
single step (i.e. not using `-c` to make intermediate objects).
2023-05-01 13:46:15 -07:00
Justine Tunney
5dab97b6d4
Implement program for finding start of zip content 2023-01-06 19:55:00 -08:00
Justine Tunney
b850b14300
Improve cosmocc / cosmoc++ toolchains
They'll now automatically create empty static archives for system
libraries that are provided by Cosmopolitan Libc. This helps make
configure scripts less confused. Musl does the same thing.
2022-11-14 13:45:57 -08:00
Justine Tunney
6cc9e08f1b
Introduce cosmocc and cosmoc++ toolchain commands 2022-09-20 04:34:03 -07:00