c6c74396d6
syscall: be explicit about abs in #gpf jump
...
The jump to the #GPF handler has an implicit abs reference, which gives a
NASM warning. Be explicit about it being absolute.
2026-10-08 23:43:33 -03:00
7ac6681ea8
kernel: generate symbol tables
...
In preparation for printing file+function names in backtraces, add
support for generating and linking three tables into the kernel:
- dbg_sym_table: a table consisting of <uint32_t addr_offset, uint32_t
function_name_offset, uint32_t file_name_offset>, being ordered by
offset.
- dbg_fn_name_table: a table consisting of packed NULL terminated
strings, which the dbg_sym_table points into.
- dbg_file_name_table: a table consisting of packed NULL terminated
strings, which the dbg_sym_table points into.
2026-10-08 23:36:37 -03:00
91ec85d8ca
panic: print backtrace on panic
...
Panics currently lack backtraces, which are a very useful thing to
have. Make the profiling backtrace function generic and print backtraces
using it.
2026-10-08 22:14:46 -03:00
e4a4896b4b
kcov: initial implementation
...
Implement a device (/dev/kcov) that exposes coverage info for the
kernel. This will be especially useful for coverage-based fuzzing (e.g.
syzkaller).
Exclude a lot of functions which would crash/otherwise interfere in the
coverage, including only processing coverage callbacks when not handling
an irq.
2026-10-06 11:51:02 -03:00
111a8696d8
mmu: move tlb shootdown to IPL_MAX
...
Currently, with IPL_IGNORE, tlb shootdown is not being treated as an
irq and thus does not contribute to the irq depth. Move it to the
highest possible IPL.
2026-10-06 11:51:02 -03:00
011309d43d
cpu: add irq depth counting
...
Add a way of checking if a cpu is in the middle of handling an irq and
how deep it is into it. This will allow for future code to conditionally
run only in/outside interrupts.
2026-10-06 11:51:01 -03:00
0cdd03eba8
smp: fix race between cpu exposure and smp init
...
The SMP code exposes that a cpu woke up before it is properly
initialized in sched_ap_entry(). Fix this by initializing it first,
exposing it and then stopping the bootstrap thread.
2026-10-06 11:51:01 -03:00
a6fd10c211
syscall: Properly handle a non-canonical return RIP
2026-09-22 13:11:10 -07:00
10cd22207d
smp: make cpu internal id match offset into cpu table
2026-09-15 23:40:53 -03:00
b9531c0ec7
smp: fix smp false sharing
2026-07-17 18:06:32 -03:00
babc6f3e06
cpu: cpu_cache_line_size
2026-07-17 18:06:03 -03:00
239c267ed3
mm: rename vmm api to mm
2026-07-01 15:00:46 -03:00
d890eb5fb2
mm: vmmcache -> mm_cache
2026-07-01 12:25:18 -03:00
4d1caa6ede
mm: refactor page.c related names to snake case
2026-07-01 12:06:30 -03:00
6f8700e678
mm: refactor pmm -> page
2026-07-01 11:56:06 -03:00
b74f36e984
kernel: implement eventfs/eventfd
2026-06-18 01:53:59 -03:00
4b9ace6d02
syscall: fix signal returns from syscall
2026-06-17 22:40:51 -03:00
659b29ef4e
syscalls: implement sysctl and add process listing
2026-06-09 17:47:27 -03:00
762552ed5f
syscalls: setpriority
2026-05-28 23:52:07 -03:00
b3312444bf
syscall log: fix logging with smap on
2026-05-28 14:19:00 -03:00
f9912b8970
kernel: fix taking smep/smap path on unsupported systems
2026-05-14 12:03:11 -03:00
3fda97332f
ps2: don't wait forever on machines with no controller
2026-05-12 22:18:42 -03:00
9697ee777a
kernel: initial xhci and usb implementation
2026-05-12 22:04:13 -03:00
02a47c8303
context: fix copy of fs and gs
2026-04-28 21:15:21 -03:00
iretq
21ddc29be7
ps2: use the new input subsystem
...
Co-authored-by: Matheus <matheusuky@gmail.com >
2026-04-27 00:11:28 -03:00
71dd6d1125
x86-64: enable smep and smap
2026-04-23 15:29:43 -03:00
b0542a165c
archctl: remove unused variable
2026-04-23 12:18:22 -03:00
06f414baaf
smp: fix warning
2026-04-23 12:17:02 -03:00
a15b034aa8
syscalls: implement clock_getres
2026-04-23 12:10:26 -03:00
804cd32fc5
ldt: validate ldt entries
2026-04-22 19:48:13 -03:00
90a420d8bb
prof: add user/kernel statistics
2026-04-22 19:44:08 -03:00
96c8f96e7b
syscall: clear more flags
2026-04-16 18:17:16 -03:00
c54d618c82
x86-64: handle some more exceptions properly
2026-04-16 18:00:33 -03:00
3399c4570c
isr: allow stack traces to cross interrupts
2026-04-12 22:38:02 -03:00
b02461e24f
syscallog: add global_syscall_logging global argument
2026-04-11 22:00:51 -03:00
9a1b23a320
syscall: clear direction flag on entry
2026-04-06 17:53:45 -03:00
5b164793cf
syscall: do not use cr2 as a scratch register
2026-04-02 01:51:06 -03:00
ea8da40128
syscalls: getsockopt
2026-04-01 17:22:22 -03:00
774ae10e99
kernel: update limine to 11 and use base revision 6
2026-04-01 16:45:42 -03:00
f8694029ab
syscalls: statvfs
2026-03-20 21:28:59 -03:00
41f97c6c61
kernel: ldt support
2026-03-20 21:23:59 -03:00
5b44d3557a
kernel: add yield syscall
2026-03-08 14:47:18 -03:00
b3d5bf5586
vmm: some work towards page locking
2026-02-12 16:25:35 -03:00
93fab00d1e
hpet: fix print
2026-01-28 16:08:47 -03:00
deec4678c1
apic: fix arch_ioapic_setirq
2026-01-28 01:12:35 -08:00
iretq
963d29fc90
syscall log: support for selective syscall tracing
2025-12-30 17:06:02 -03:00
c9c2471796
x86_64/context: fix check for xsave
2025-12-27 17:23:21 -03:00
227fcb5386
context.asm: zero rbp on stack change
2025-12-07 12:06:32 -03:00
1a7a178168
x86-64/arch_prof: fix backtrace
2025-12-07 12:06:14 -03:00
64d078c654
archctl: boundary check
2025-12-05 18:20:09 -03:00
Matheus
iretq