If cosmo_dlopen() is linked on AMD64 then the runtime will switch to
using %gs for thread-local storage. This eliminates the need for the
imported symbol trampoline. It's now safer to pass function pointers
back and forth with imported libraries. Your program gets recompiled
at runtime to make it happen and the overhead is a few milliseconds.
The toolchain will now be downloaded going forward from multiple pinned
URLs which have shasums. Either wget or curl must be installed.
This change unblocks #1053
Our dynamic linking implementation is now able to support functions with
dozens of parameters. In addition to having extra integral arguments you
can now pass vector registers using intrinsic types. Lastly, you can now
return multiple values, which is useful for functions returning structs.
It's now possible to pass flags like -Xaarch64-march=armv8.2-a+dotprod
so that cosmocc will use newer ARM ISAs. For AMD64 there's another one
worth mentioning, which looks like this: -Xx86_64-mssse3
This increases risk of fork bomb but is needed to support the NixOS.
Upstream dependencies of APE (uname, mkdir, dd, chmod, gzip, and mv)
will be removed from releases, and deleted from the cosmo.zip server
See #12
- Check `$COSMOCC`, defaulting to `/opt/cosmocc`.
- Try to get the full path of the repo `make.com`. I'm not aware of
a way of getting the path that defines a zsh function, so the best
fallback available is `$PWD`.
* Remove -f from loader usage
-f was removed in 1.5. As there is now only one flag, a couple more
bytes can be shaved off as well.
* Further loader golf
Shaves off a few bytes, paying for the cost of `RealPath` and then some
on x86_64 and offsetting some of the cost to aarch64.
* Shave off a few more bytes
Removes `-h` and flags from usage. Keeps flag-parsing logic the same,
i.e. still accepts `-h` / `--help`. Only difference is what fd and rc
the usage uses.
Still over 1k north of 8192.
* Reorder Launch arguments, pass aarch64 os
Third and fourth arguments are now identical between cosmo and Launch.
By passing sp as argument 4, we save a bit of register juggling.
Fourth argument (os) is now always passed by the loader on aarch64. It
is not yet processed by cosmo. Pushing this change separately, as the
cosmo side turns out to be somewhat more involved.
* cosmo2 receives os from loader
FreeBSD aarch64 now traps early rather than pretending to be Linux.
o/aarch64/examples/env.com still works on Linux and Xnu.
Now that our socket system call polyfills are good enough to support
Musl's DNS library we should be using that rather than the barebones
domain name system implementation we rolled on our own. There's many
benefits to making this change. So many, that I myself wouldn't feel
qualified to enumerate them all. The Musl DNS code had to be changed
in order to support Windows of course, which looks very solid so far
This commit and, by extension, PR attempts to update `stb` in the most
straightforward way possible as well as include fixes from main repo's
unmerged PRs for cases rearing their ugly heads during everyday usage:
- stb#1299: stb_rect_pack: Make rect_height_compare a stable sort
- stb#1402: stb_image: Fix "unused invalid_chunk" with STBI_FAILURE_USERMSG
- stb#1404: stb_image: Fix gif two_back memory address
- stb#1420: stb_image: Improve error reporting if file operations fail
within *_from_file functions
- stb#1445: stb_vorbis: Few static analyzers fixes
- stb#1487: stb_vorbis: Fix residue classdata bounding for
f->temp_memory_required
- stb#1490: stb_vorbis: Fix broken clamp in codebook_decode_deinterleave_repeat
- stb#1496: stb_image: Fix pnm only build
- stb#1497: stb_image: Fix memory leaks if stbi__convert failed
- stb#1498: stb_vorbis: Fix memory leaks in stb_vorbis
- stb#1499: stb_vorbis: Minor change to prevent the undefined behavior -
left shift of a negative value
- stb#1500: stb_vorbis: Fix signed integer overflow
Includes additional small fixes that I felt didn't warrant a separate PR.
Missed this when changing the code back to be like the old version.
com is now a parameter.
The only plausible way to trigger this would be to pass a loader
pathname close to MAX_PATH characters long, and then remove that
path prior to the first sys_faccessat.
