Commit graph

425 commits

Author SHA1 Message Date
Justine Tunney
c6d8e516b2 Print warning when microbenchmarking w/ powersave
RDTSC on Linux has so much jitter when the CPU is in powersave mode
causing things like microbenchmarks to have a 1000% margin of error
2022-06-10 21:07:03 -07:00
Justine Tunney
af4687cc3f Add Info-ZIP unzip.com 2022-06-10 05:09:11 -07:00
Justine Tunney
fde939291d Fix an UBSAN warning 2022-06-10 03:33:05 -07:00
Justine Tunney
a41669dec6 Make dlmalloc a little faster
This change also documents the libc arena allocator.
2022-06-09 21:25:21 -07:00
Justine Tunney
3c7ae0fc72 Add w3c html tidy 2022-06-09 06:51:08 -07:00
Justine Tunney
e1a40783da Fix fadvise() on Windows 2022-06-08 20:33:13 -07:00
Justine Tunney
adac64a52b Reduce makefile dependencies by 10%
The includes in libc/calls/calls.h have now been refactored so that
functions with struct parameters are declared in libc/calls/struct/
2022-06-08 20:01:28 -07:00
Justine Tunney
701564de19 Perform better fixups of NT paths in execve()
This change ensures we do a better job translating /c/foo.bar paths into
c:/foo.bar paths on Windows when generating the CreateProcess() cmd line
thus fixing a regression that happened in the last two months when using
the help() feature of Actually Portable Python in the CMD.EXE shell.
2022-06-08 18:27:19 -07:00
Justine Tunney
cfb5d3e406 Fix issue with --strace log 2022-06-08 17:20:19 -07:00
Justine Tunney
da6d610056 Use Lua auto buffers when possible 2022-05-29 19:04:30 -07:00
Justine Tunney
13ee75150c Improve redbean plus code size optimizations
This change turns symbol table compression back on using Puff, which
noticeably reduces the size of programs like redbean and Python. The
redbean web server receives some minor API additions for controlling
things like SSL in addition to filling gaps in the documentation.
2022-05-29 08:21:19 -07:00
Justine Tunney
425ff5dff0 Refactor some code
- Write tests for cthreads
- Fix bugs in pe2.com tool
- Fix ASAN issue with GetDosEnviron()
- Consolidate the cthread header files
- Some code size optimizations for MODE=
- Attempted to squash a tls linker warning
- Attempted to get futexes working on FreeBSD
2022-05-28 14:09:21 -07:00
Justine Tunney
de5de19004 Make improvements
- Document redbean's argon2 module
- Fix regressions in cthreads library
- Make testlib work better with threads
- Give the cthreads library lots of love
- Remove some of the stdio assembly code
- Implement getloadavg() across platforms
- Code size optimizations for errnos, etc.
- Only check for signals in main thread on Windows
- Make errnos for dup2 / dup3 consistent with posix

This change also fixes a bug in the argon2 module, where the NUL
terminator was being included in the hash encoded ascii string. This
shouldn't require any database migrations to folks who found this module
and productionized it, since the argon2 library treats it as a c string.
2022-05-28 00:28:09 -07:00
Justine Tunney
cb67223051 Add malloc logging tool
STATIC_YOINK("enable_memory_log");
2022-05-26 23:19:22 -07:00
Justine Tunney
10b97ca630 Add test for sendfile() and reduce branches 2022-05-25 22:29:10 -07:00
Justine Tunney
d230a01222 Make build hermetic without shell scripts
- Fix some minor issues in ar.com
- Have execve() look for `ape` command
- Rewrite NT paths using /c/ rather /??/c:/
- Replace broken GCC symlinks with .sym files
- Rewrite $PATH environment variables on startup
- Make $(APE_NO_MODIFY_SELF) the default bootloader
- Add all build command dependencies to build/bootstrap
- Get the repository mostly building from source on non-Linux
2022-05-25 13:55:57 -07:00
Justine Tunney
d44ff6ce1f Make improvements
- Implement openpty()
- Add `--assimilate` flag to APE bootloader
- Restore Linux vDSO clock_gettime() support
- Use `$(APE_NO_MODIFY_SELF)` on more programs
2022-05-24 10:58:48 -07:00
Justine Tunney
cef50f2a6b Write test for stack overflow detection 2022-05-23 16:32:16 -07:00
Justine Tunney
99e67c348b Reduce Makefile dependencies by 4% 2022-05-23 15:07:01 -07:00
Justine Tunney
e8632cfc30 Revert recent change to ASAN module 2022-05-23 13:30:16 -07:00
Justine Tunney
312ed5c67c Fix some issues and do some code cleanup 2022-05-23 10:15:53 -07:00
Justine Tunney
1f229e4efc Use re-entrant locks on stdio 2022-05-22 08:28:33 -07:00
Justine Tunney
4e9662cbc7 Write tests for new APE loader and fix bugs
- Add FreeBSD-specific mmap() flags
- Reduce size of the APE loader from 8kb to 4kb
- Work towards fixing the Makefile build on WSL
- Automate testing of APE no-modify-self behaviors
- Make the ape.S shell script code cleaner and tinier
- Improve the APE sanity check to test behavior better
- Fixed issue with ShowCrashReports() sigaltstack() on BSDs
- Delete symbols for S_MODE magnums which wasted compile time

If you checked out yesterday's APE commit, please run:

    rm -f /usr/bin/ape o/tmp/ape /tmp/ape "${TMPDIR:-/tmp}/ape"

Because this change fixes certain aspects of the new ABI. We don't have
automated migrations for APE loader versions yet. Thanks! You can also
download prebuilt binaries here:

- https://justine.lol/ape.elf    (Linux/FreeBSD/NetBSD/OpenBSD)
- https://justine.lol/ape.macho  (Apple)

Install the appropriate one as `/usr/bin/ape`.
2022-05-22 05:45:38 -07:00
Justine Tunney
db0d8dd806 Support Linux binfmt_misc and APE loading on Apple
The "no modify self" variant of Actually Portable Executable is now
supported on all platforms. If you use `$(APE_NO_MODIFY_SELF)` then
ld.bfd will embed a 4096 byte ELF binary and a 4096 byte Macho file
which are installed on the fly to ${TMPDIR:-/tmp}, which enables us
launch the executable, without needing to copy the whole executable

To prevent it from copying a tiny executable to your temp directory
you need to install the `ape` command (renamed from ape-loader), to
a system path. For example:

    # FreeBSD / NetBSD / OpenBSD
    make -j8 o//ape/ape
    cp o//ape/ape /usr/bin/ape

    # Mac OS
    # make -j8 o//ape/ape.macho
    curl https://justine.lol/ape.macho >/usr/bin/ape
    chmod +x /usr/bin/ape

On Linux you can get even more performance with the new binfmt_misc
support which makes launching non-modifying APE binaries as fast as
launching ELF executables. Running the following command:

    # Linux
    ape/apeinstall.sh

Will copy APE loader to /usr/bin/ape and register with binfmt_misc
Lastly, this change also fixes a really interesting race condition
with OpenBSD thread joining.
2022-05-21 09:28:25 -07:00
Justine Tunney
7838edae88 Fix many thread and file descriptor issues on Windows
The greenbean web server now works nearly perfectly on Windows with over
1000 threads. But some synchronization issues still remain which prevent
us from going over nine thousand.
2022-05-20 20:57:19 -07:00
Justine Tunney
8141988e92 Shave 4kb off default mode binaries 2022-05-20 08:18:20 -07:00
Justine Tunney
c8a2f04058 Reduce ftrace overhead to 280ns 2022-05-20 04:46:42 -07:00
Justine Tunney
4245da19e2 Remove some old dead code from ftrace 2022-05-20 04:01:50 -07:00
Justine Tunney
b4ae385a6a Fix amalgamation warnings 2022-05-19 19:08:35 -07:00
Justine Tunney
c21412bc2c Remove carriage return from function traces 2022-05-19 17:46:14 -07:00
Justine Tunney
ec2cb88058 Make fixes and improvements
- Document more compiler flags
- Expose new __print_maps() api
- Better overflow checking in mmap()
- Improve the shell example somewhat
- Fix minor runtime bugs regarding stacks
- Make kill() on fork()+execve()'d children work
- Support CLONE_CHILD_CLEARTID for proper joining
- Fix recent possible deadlock regression with --ftrace
2022-05-19 16:57:49 -07:00
Justine Tunney
6e52cba37a Fix stdio regression
This change fixes a nasty regression caused by
80b211e314 which deadlocked.

This change also causes MbedTLS to prefer the ChaCha ciphersuite on
older CPUs that don't have AES hardware instructions.
2022-05-19 00:51:15 -07:00
Justine Tunney
9208c83f7a Make some systemic improvements
- add vdso dump utility
- tests now log stack usage
- rename g_ftrace to __ftrace
- make internal spinlocks go faster
- add conformant c11 atomics library
- function tracing now logs stack usage
- make function call tracing thread safe
- add -X unsecure (no ssl) mode to redbean
- munmap() has more consistent behavior now
- pacify fsync() calls on python unit tests
- make --strace flag work better in redbean
- start minimizing and documenting compiler flags
2022-05-18 16:52:36 -07:00
Justine Tunney
c6bbca55e9 Disable Linux vDSO support for now
It's been encountering some strange errors that are difficult to
reproduce.
2022-05-17 12:51:25 -07:00
Justine Tunney
f37524ef4f Add ANSI mode guard to header 2022-05-17 07:43:10 -07:00
Justine Tunney
2743f3d012 Clean up the clone() code a bit 2022-05-17 07:40:00 -07:00
Justine Tunney
ce71677156 Improve threading support further 2022-05-17 04:14:28 -07:00
Justine Tunney
8bfb70ca3f Add Compress() and Uncompress() to redbean 2022-05-16 16:49:20 -07:00
Justine Tunney
59b6ae1cbd Add NET_HTTP to the amalgamation
This also fixes some POSIX header warnings.
2022-05-16 14:47:49 -07:00
Justine Tunney
55de4ca6b5 Support thread local storage 2022-05-16 13:20:08 -07:00
Justine Tunney
91ee2b19d4 Polish greenbean example a bit more
Windows support for this example is still a work in progress. It's
encountering some unusual crashes. Thank you Chris Wellons for the cool
synchronization code too!
2022-05-15 09:19:49 -07:00
Justine Tunney
80b211e314 Add raw memory visualization tool to redbean
This change introduces a `-W /dev/pts/1` flag to redbean. What it does
is use the mincore() system call to create a dual-screen terminal
display that lets you troubleshoot the virtual address space. This is
useful since page faults are an important thing to consider when using a
forking web server. Now we have a colorful visualization of which pages
are going to fault and which ones are resident in memory.

The memory monitor, if enabled, spawns as a thread that just outputs
ANSI codes to the second terminal in a loop. In order to make this
happen using the new clone() polyfill, stdio is now thread safe.

This change also introduces some new demo pages to redbean. It also
polishes the demos we already have, to look a bit nicer and more
presentable for the upcoming release, with better explanations too.
2022-05-14 04:33:58 -07:00
Justine Tunney
578cb21591 Add syscalls to Blinkenlights and fix bugs 2022-05-13 13:31:21 -07:00
Justine Tunney
fec396037a Get threads working on all platforms
We now have a high-quality clone() implementation for creating
lightweight threads on Linux/Windows/FreeBSD/NetBSD/OpenBSD.
2022-05-13 03:59:09 -07:00
Justine Tunney
ec6e0fa5f4 Wrap sched_getaffinity
Fixes #385
2022-05-12 07:22:57 -07:00
Justine Tunney
335d158ab6 Decrease strace verbosity 2022-05-12 06:58:51 -07:00
Justine Tunney
e7611a8476 Make improvements
- Get threads working on NetBSD
- Get threads working on OpenBSD
- Fix Emacs config for Emacs v28
- Improve --strace logging of sigset_t
- Improve --strace logging of struct stat
- Improve memory safety of DescribeThing functions
- Refactor auto stack allocation into LIBC_RUNTIME
- Introduce shell.com example which works on Windows
- Refactor __strace_thing into DescribeThing functions
- Document the CHECK macros and improve them in NDEBUG mode
- Rewrite MAP_STACK so it uses FreeBSD behavior across platforms
- Deprecate and discourage the use of MAP_GROWSDOWN (it's weird)
2022-05-12 06:45:36 -07:00
Justine Tunney
dd9ab01d25 Revert "Use 64-bit years"
This reverts commit cfc3a953ae.
2022-05-12 06:45:36 -07:00
Justine Tunney
cfc3a953ae Use 64-bit years
This change makes strftime() go faster and makes it possible to format
timestamps through the big bang to most of the stelliferous era. India
has also been added as a timezone to most binaries. Since we were able
to change the struct tm abi, this makes cosmopolitan libc superior, to
just about everything else, when it comes to standing the test of time
2022-05-11 17:58:56 -07:00
Justine Tunney
2aebda7718 Fix some bugs 2022-05-11 02:50:30 -07:00