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286 commits

Author SHA1 Message Date
Andreas Kling
60023ff70b LibC: free() should move kept empty ChunkedBlocks to the end of the list. 
This ensures that we continue allocating from partially-used blocks until
they are full.
 2019-05-02 16:35:57 +02:00
Andreas Kling
658fff195c LibC: free() should return free blocks back to the operating system. 
Okay fine, I'll give them back. But we'll keep 4 blocks per size class on
hand, to reduce churn.
 2019-05-02 15:58:10 +02:00
Andreas Kling
2dc72bb297 LibC: Improve malloc() mmap names somewhat. 2019-05-02 02:58:06 +02:00
Andreas Kling
4291e96991 LibC: Implement a simple freelist-based malloc() with size classes. 
It's not thread-safe yet, and there is lots of room for improvement.
Still it's a lot faster than the first-fit bitmap-based one it replaces.
 2019-05-02 02:35:29 +02:00
Andreas Kling
98a0e10319 LibC: Log all malloc() calls if LIBC_LOG_MALLOC is set. 
This makes it easier to quickly determine if a userspace process is getting
bogged down in memory allocation.
 2019-04-30 01:22:18 +02:00
Andreas Kling
80850e274d LibC: Oops, exit_thread() never returns. 2019-04-29 15:18:21 +02:00
Andreas Kling
d07be1087a Kernel+LibC: Add exit_thread() syscall. 2019-04-29 15:17:20 +02:00
VAN BOSSUYT Nicolas
3761bc3ed7 Toolchain: The toolchain script is now working 🎉 2019-04-29 13:12:20 +02:00
VAN BOSSUYT Nicolas
4977fd22b8 Toolchain: Useit.sh finish and added an install target for the libc's Makefile and a bit of ground work for a gcc port 2019-04-29 13:12:20 +02:00
Andreas Kling
95ddca8a52 LibC: Make the malloc()/free() scrubbing runtime optional (default on.) 
Memory returned by malloc() is normally memset with 0x85.
Memory passed to free() is normally memset with 0x82.

These behaviors can now be disabled by setting one or both of
LIBC_NOSCRUB_MALLOC and LIBC_NOSCRUB_FREE in your environment. :^)
 2019-04-27 21:19:56 +02:00
Andreas Kling
f80244399d LibC: Add dummy pthread.h for GCC build. 2019-04-27 21:19:18 +02:00
Andreas Kling
d3fb0a56ed LibC: Make fwrite() buffered. 
This is a really naive implementation that makes fwrite() call fputc()
internally, but it still performs a lot better due to avoiding the write()
syscall every time.
 2019-04-27 17:32:47 +02:00
Andreas Kling
100cb2a237 LibC: Various stdio correctness fixes. 2019-04-27 16:19:11 +02:00
Andreas Kling
490e89e240 LibC: Add execvpe() and make execvp()'ed children inherit environment. 2019-04-26 03:16:26 +02:00
Andreas Kling
8effdc807a LibC: Update stdio stream error state in more places. 2019-04-26 00:41:37 +02:00
Andreas Kling
0c898e3c2c Put assertions behind a DEBUG flag to make it easy to build without them. 2019-04-23 21:52:02 +02:00
Andreas Kling
58240fdb33 Do a pass of compiler warning fixes. 
This is really making me question not using 64-bit integers more.
 2019-04-23 13:00:53 +02:00
Andreas Kling
5c68929aa1 Kernel: Add a systrace() syscall and implement /bin/strace using it. 
Calling systrace(pid) gives you a file descriptor with a stream of the
syscalls made by a peer process. The process must be owned by the same
UID who calls systrace(). :^)
 2019-04-22 18:44:45 +02:00
Andreas Kling
1d02c7b6f1 LibC: Return a default locale from localeconv(). (For GCC 8.3.0) 2019-04-22 13:00:59 +02:00
Andreas Kling
f9d3abf5d0 LibC: Add sched_yield(), needed for GCC 8.3.0 build. 2019-04-22 00:13:41 +02:00
Andreas Kling
57da00b731 Include Makefile.common in all other Makefiles. 2019-04-21 04:09:39 +02:00
Andreas Kling
5451178c63 LibC: Minor compat tweak, move struct timezone to sys/time.h 2019-04-21 02:59:20 +02:00
Andreas Kling
5f63f8120c Kernel: Remove "restorer" field from SignalActionData. 
I was originally implementing signals by looking at some man page about
sigaction() to see how it works. It seems like the restorer thingy is
system-specific and not required by POSIX, so let's get rid of it.
 2019-04-20 19:32:14 +02:00
Andreas Kling
5eedb22834 Sprinkle use of AK::Vector in various places. 
Some of these are less helpful than others. Avoiding a bunch of mallocs
in the event loop wakeup code is definitely nice.
 2019-04-20 14:02:19 +02:00
Andreas Kling
6d4874cb2e LibC: Get rid of the now-unneeded AK/kmalloc.cpp 2019-04-20 13:00:25 +02:00
Andreas Kling
301a269ca0 Get rid of SERENITY macro since the compiler already defines __serenity__ 
This makes it a bit easier to use AK templates out-of-tree.
 2019-04-20 12:58:49 +02:00
Andreas Kling
9ef06e2117 LibC: stddbg should be opened with O_CLOEXEC. 2019-04-18 22:20:01 +02:00
Andreas Kling
3817f5f619 Kernel+LibC: Add a DebugLogDevice that forwards everything to I/O port 0xe9. 
This is then used to implement the userspace dbgprintf() in a far more
efficient way than what we had before. :^)
 2019-04-18 16:08:52 +02:00
Andreas Kling
34087a9f90 LibC: Bring the C library close enough to newlib to trick GCC. 
Now we can build GCC with --with-newlib, which hopefully cuts down on weird
toolchain build issues.
 2019-04-17 23:16:16 +02:00
Andreas Kling
33920df299 AK: Try to use StringViews more for substrings and splitting. 2019-04-16 02:39:16 +02:00
Andreas Kling
26a06f3fcd Kernel: More work towards POSIX SHM, also add ftruncate(). 2019-04-09 01:10:00 +02:00
Andreas Kling
99f3cc26c3 Kernel+LibC: Add stubs for POSIX shared memory API. 
Specifically shm_open() and shm_unlink(). This patch just adds stubs.
 2019-04-08 23:44:12 +02:00
Andreas Kling
37ae00a4dd Kernel+Userland: Add the rename() syscall along with a basic /bin/mv. 2019-04-07 23:35:26 +02:00
Andreas Kling
9de7a0daaf AK: Fix problem when building i686-pc-serenity toolchain from scratch. 2019-04-05 03:58:40 +02:00
Andreas Kling
e19d38e742 LibC: Add some missing stuff in stdint.h for libstdc++. 2019-04-05 03:37:01 +02:00
Andreas Kling
96104b5524 Taskbar: More bringup work. We now see a basic window list. 2019-04-04 01:44:35 +02:00
Andreas Kling
3dc3754cde Font: Clean up AK::MappedFile and use it for mapping font files. 2019-04-03 13:51:49 +02:00
Andreas Kling
17e02e7450 Move NetworkOrdered.h to AK/ since it's used in both kernel and userspace. 2019-04-02 20:04:54 +02:00
Andreas Kling
73f3e05ebb Stopwatch: Print the result in decimal instead of hexadecimal. 2019-03-30 04:20:08 +01:00
Andreas Kling
0058da734e Kernel: Add Inode::truncate(size). 
- Use this to implement the O_TRUNC open flag.
- Fix creat() to pass O_CREAT | O_TRUNC | O_WRONLY.
- Make sure we truncate wherever appropriate.
 2019-03-27 16:42:30 +01:00
Andreas Kling
1577217ce1 LibC: Let's remember that headers are in C. 2019-03-27 12:53:05 +01:00
Andreas Kling
23bb276fcd LibC: Run constructors on process startup. 
Cooperate with the compiler to generate and execute the _init_array list
of constructor functions on userspace program statup. This took two days
to get working, my goodness. :^)
 2019-03-27 12:48:21 +01:00
Andreas Kling
f1a2cb0882 LibC: Fix fread() EOF behavior with ungetc(). 2019-03-27 05:13:28 +01:00
Andreas Kling
e145344767 LibC: Remove the validate_mallocation() stuff since Binutils hates it. 2019-03-27 05:02:02 +01:00
Andreas Kling
baab9f4402 LibC: Implement atexit() and strtoul(). 2019-03-27 01:55:39 +01:00
Andreas Kling
d1e55fb4d9 LibC: Add ungetc() and automatically flush streams on fclose(). 2019-03-27 01:40:55 +01:00
Andreas Kling
0c2face7b0 LibC: Add creat(), execvp() resolution, and exec*() environment inheritance. 2019-03-27 01:39:13 +01:00
Andreas Kling
aef6030a80 LibC: Time-related POSIX compliance fixes. 2019-03-27 01:31:53 +01:00
Andreas Kling
f2773e05e5 LibC: fread() should return the number of elements (not bytes) read. 2019-03-26 00:10:58 +01:00
Andreas Kling
500df578fe LibGUI+Kernel: Add a GLock class (userspace mutex.) 
It's basically a userspace port of the kernel's Lock class.
Added gettid() and donate() syscalls to support the timeslice donation
feature we already enjoyed in the kernel.
 2019-03-25 13:03:49 +01:00