b611c3fe48
LibC: Support in-place realloc for mmap backed allocations
...
When shrinking a mmap based allocation, we can just unmap the trailing
pages that will no longer be needed. When extending an allocation we try
to MMAP_FIXED_NOREPLACE the need extra data to avoid memcpy between old
and new allocation. I'm not sure if the extension logic is really worth
it but it is just 15 lines of code to avoid possibly very large memcpys.
2026-07-20 06:58:30 +03:00
8c6e402ee8
LibC: page align mmap backed malloc sizes
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This will make reallocations cleaner
2026-07-20 06:58:30 +03:00
bd5be982e9
LibC: Don't memset 0 mmap'd callocs
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There is no reason to page everything in and the kernel already
guarantees that the memory is zeroed in mmap
2026-07-20 06:58:30 +03:00
33f941f2fd
LibC: Unmap unused pages in aligned mallocs
2026-07-20 06:58:30 +03:00
8368dec30b
LibC: Fix posix_memalign return value
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I was returning -1 with errno instead of the error code :P
2026-07-20 06:58:30 +03:00
7f25350c62
LibC: Fix malloc mmap byte tracking
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I was incrementing instead of decrementing when freeing mmap allocs
2026-07-20 06:58:30 +03:00
64523b6c70
LibC: Fix futex return value handling
2026-07-20 06:58:30 +03:00
bc622c8b51
LibC: Fix pthread default guard size and name
2026-07-20 06:58:30 +03:00
46e2d665e9
LibC: Make pthread_once block with a futex instead of yielding
2026-07-20 04:07:23 +03:00
390a7674b1
LibC: Fix uthread deallocation
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Update dtv[0] to the max loadad module when loading dynamic modules
Free uthread if stack allocation or mprotect fails on pthread_create
Don't unmap the currently used stack when detached thread exits
2026-07-20 04:07:23 +03:00
583c2437b4
LibC: Don't munmap nullptr with 0 size in malloc
2026-07-20 04:07:23 +03:00
efb25e5666
BAN/LibC: Move ldexp, scalbn to libc
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They are now implemented with float decompostion to modify the exponent
bits directly
2026-07-20 04:07:23 +03:00
f0e95ffe48
LibC: Make qsort_swap static
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There is no need to export this
2026-07-20 04:07:23 +03:00
511ab7e99c
LibC: Define locale_t as an poiter
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A lot of ports seem to depend on this casting nullptr into locale_t
2026-07-20 04:07:23 +03:00
87006e277f
LibC: Define winsize in both termios.h and sys/ioctl.h
2026-07-20 04:07:23 +03:00
f6b91578ae
LibC: Enable backtrace dumping by default
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I'm not sure why I had turned this off
2026-07-20 04:07:23 +03:00
e03a26cf01
LibC: Don't ASSERT in times
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Return the current process CPU time as user time. We don't have a way to
get system/user time separation or CPU times of child processes
2026-07-20 04:07:23 +03:00
2a3eca5b36
LibC: Implement POSIX binary search trees
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I used RB tree for this. The implementation is based on the code on
wikipedia about RB trees.
2026-07-20 04:07:23 +03:00
304f94f3b1
LibC: Implement __fpending
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Some gnu programs want this and I don't want to make FILE non-opaque
2026-07-07 16:59:20 +03:00
20392c6cc1
LibC: Add malloc.h with some GNU extension
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This adds `reallocarray`, `malloc_usable_size`, `mallinfo`, `mallinfo2`
2026-07-07 10:30:07 +03:00
b62687f5e7
LibC: Cleanup backtrace code
2026-07-07 04:44:44 +03:00
896bb05073
LibC: Cleanup qsort implementation
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Remove random template and just make qsort be a wrapper around qsort_r
Recurse only into the smaller partition. This removes the possibility of
O(n) recursion in the worst case
Use insertion sort for ranges shorter than 16 elements.
Split qsort_swap into qsort_swap_fixed and qsort_swap_general
- fixed one handles 1, 2, 4 and 8 byte elements which can be done directly
with mov instructions
- general copies 64 bytes at a time followed by a single copy for the
rest. the 64 byte chunk loop gets nicely optimized into sse
2026-07-07 04:39:06 +03:00
fc10de7ccb
LibC: Implement pause
2026-07-07 04:36:55 +03:00
eee0b7c3ff
Kernel: Make ioctl take unsigned long instead of int
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this is what linux does :D
also fix one or two `return ioctl` instead of `return ioctl_impl`
2026-07-07 03:12:39 +03:00
3e16e69602
LibC: Implement qsort_r
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This is not really required by anything but i've seen few ports
optionally use it if available. This was trivial to implement so why not
add it :^)
2026-07-05 01:55:57 +03:00
ac1fafedcc
LibC: Cleanup and fix random functions
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I was getting the size of random state incorrectly and ended up with
double the size user gave us leading to OOB access :D
Also remove hardcoded type -> size mappings and just use a looup table
2026-07-04 23:12:52 +03:00
b480f783ec
LibC: Fix regex anchor parsing
2026-07-04 19:17:07 +03:00
2957206718
LibC: Fix and cleanup stdio mode string parsing
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The code is now much cleaner andd we are not as strict with the mode
string. Also add support for new 'e' and 'x' modifiers
2026-07-04 19:13:26 +03:00
a41a3eeb66
LibGUI: Add query keymap request
2026-07-04 19:12:56 +03:00
6aa2329267
LibInput: Mark KeyboardLayout::key_event_from_raw const
2026-07-04 19:12:06 +03:00
5256fd2e0a
LibInput: Add support for right super and application keys
2026-07-04 19:11:30 +03:00
652e170da9
LibGUI: Ignore failing smo maps in resize event
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This can be caused by sending two back-to-back resize requests. When
handling the first, the server may have already replaced the smo key
with a new one.
2026-07-04 08:42:17 +03:00
a2691bd70d
LibGUI: Cleanup window initialization
2026-07-04 08:41:58 +03:00
c9b3d50523
LibC: Fix printf zero padding on floats
2026-07-04 04:50:29 +03:00
e717b95df0
LibC: Fix printf %g modifier
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Apparently I had missed like half of the features it was supposed to do
2026-07-04 04:49:44 +03:00
0d8d731d91
LibC: Implement wsctoT functions
2026-07-04 04:13:21 +03:00
122c325a5b
LibC: Move strtoT implementation to common header
2026-07-04 04:13:21 +03:00
d5bc88584d
LibC: Implement wcscasecmp and wcsncasecmp
2026-07-04 02:25:56 +03:00
63b2284324
Kernel/LibC: support RDTSCP based clock_gettime
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RDTSCP seems to be faster than LSL and it removes the need for getting
the current cpu twice to make sure TSC is read on the correct CPU
2026-07-03 06:32:04 +03:00
917321eb5f
LibC: Wait for thread before returning from pthread_create
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We now make sure the thread starts up and sets its id. There was a race
condition where a process could create a thread and immediately try to
join it. If the thread had not initialized itself the join would fail
with EINVAL as we passed -1 as its id.
2026-07-03 02:14:10 +03:00
0a8b03d349
LibAudio: Make AudioLoaders return float instead of double
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AudioBuffers already use floats internally so there is no need for
loaders to produces doubles
2026-07-02 22:54:45 +03:00
4473ee4d49
LibAudio: Add an API to query free space in audio buffer
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Also optimize and cleanup sample queueing
2026-07-02 22:54:45 +03:00
ded722fb4c
LibC: bump SYMLOOP_MAX to 128
2026-07-02 20:02:24 +03:00
facc17c5a1
LibC: Implement {get,free}ifaddrs
2026-07-02 20:02:24 +03:00
26abd4e18e
LibC: Add posix_fallocate stub
2026-07-02 20:02:24 +03:00
50fd526e6f
LibC: Implement pthread_{get,set}name_np
2026-07-02 20:02:24 +03:00
c0e091b647
LibC: Implement pthread_{get,set}attr_default_np
2026-07-02 20:02:24 +03:00
372da006d0
LibC: Implement pthread_getattr_np
2026-07-02 20:02:24 +03:00
0dc74beb0f
Kernel/LibC: Allocate thread stacks in userspace
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This adds support for pthread function for stack manipulation.
Also keep track of main threads stack in the uthread
2026-07-02 20:02:24 +03:00
7bdd9d19d0
LibC: Cleanup uthread initialization
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This is now done in a constructor function in pthread.cpp
2026-07-02 20:02:24 +03:00
