debug.h is a NuttX-specific, non-POSIX header. Placing it in the
top-level include/ directory creates naming conflicts with external
projects that define their own debug.h.
This commit moves the canonical header to include/nuttx/debug.h,
following the NuttX convention for non-POSIX/non-standard headers,
and updates all in-tree references.
A backward-compatibility shim is left at include/debug.h that
emits a deprecation #warning and re-includes <nuttx/debug.h>,
allowing out-of-tree code to continue building while migrating.
Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
This commit introduces a new Kconfig option LIBC_MUTEX_BACKTRACE_SKIP tocontrol the
number of initial addresses skipped when generating mutex backtraces.
Key changes:
1. Add LIBC_MUTEX_BACKTRACE_SKIP Kconfig entry (depends on
LIBC_MUTEX_BACKTRACE > 0), defaulting to 2. This option lets users configure
how many leading addresses are omitted from the mutex backtrace output.
2. Modify the nxmutex_add_backtrace() function to pass the new config value
as the skip parameter to sched_backtrace(), replacing the hardcoded 0.
This enhancement improves the usability of mutex backtraces by allowing removalof uninformative
initial stack frames (e.g., backtrace helper functions ormutex acquisition wrappers), making the
relevant call stack entries more visiblefor debugging lock-related issues.
The default value (2) maintains sensibleout-of-the-box behavior while enabling customization for specific use cases.
Signed-off-by: chao an <anchao.archer@bytedance.com>
This patch adds an AUTOSAR-style CRC library used by E2E functionality.
It introduces multiple CRC variants (CRC8, CRC16, CRC32, CRC64) and the
corresponding public headers and implementation files.
Key changes:
- Public headers: `include/nuttx/crc8.h`, `include/nuttx/crc16.h`,
`include/nuttx/crc32.h`, `include/nuttx/crc64.h` with new APIs for
specific polynomial variants and incremental (part) helpers.
- Implementations added under `libs/libc/misc/` for several polynomials:
- `lib_crc16h1021.c` (CRC-16 CCITT-FALSE)
- `lib_crc16h8005.c`
- `lib_crc32h04c11db7.c`
- `lib_crc32hf4acfb13.c`
- `lib_crc64emac.c`
- `lib_crc8h1d.c`
- `lib_crc8h2f.c`
- Build files updated to include the new sources.
This addition provides low-level CRC primitives required by higher-level
protocols and test suites.
Signed-off-by: yukangzhi <yukangzhi@xiaomi.com>
Add compilation condition for 'nx_vsyslog' syscall.
Export 'sched_note_printf_ip' syscall when CONFIG_SYSLOG_TO_SCHED_NOTE=y
Put the implementation of sched_note_printf_ip in libc/misc/lib_note.c
Signed-off-by: yukangzhi <yukangzhi@xiaomi.com>
Use mktemp to create unique path for memfd, so other thread can't find file by path.
If don't do this, error will ocurr in this case:
thread 1: thread2:
open() -- refs = 1
open() -- refs = 2
unlink()
unlink()
thread1 and thread2 will map one buffer by using file path but not fd or address of buffer.
Signed-off-by: wangzhi16 <wangzhi16@xiaomi.com>
Add crc8rohcincr() function to support byte-by-byte CRC8 calculation
using the ROHC polynomial (0x07) without XOR inversions. This is
useful for protocols that require incremental CRC accumulation,
such as GSM 07.10 (CMUX), where the CRC must be computed as frames
are parsed from circular buffers.
Changes include:
- New crc8rohcincr() function for single-byte incremental CRC
- Function takes current CRC value and returns updated CRC
- Uses same g_crc8_tab table as other ROHC functions
- No XOR inversions applied for proper accumulation
This allows protocols like CMUX to replace local CRC table
implementations with standard libc CRC functions while maintaining
correct incremental calculation behavior.
Signed-off-by: Halysson <halysson1007@gmail.com>
idr_destroy() would loop over the removed and alloced
RB tree nodes freeing them but not removing them from
the trees. From the perspective of the RB tree those
nodes would remain valid, while in fact, they were free
memory, potentially reallocated for other purposes, or
otherwise overwritten by the allocator with metadata.
This would cause (seemingly random) memory corruption
crashes triggered by the RB tree code trying to access
link fields from the free'd nodes.
Fix that by removing the nodes before freeing them.
Signed-off-by: George Poulios <gpoulios@census-labs.com>
There are many close calls in application without checking return value,
and wrong code causes the same fd to be closed multi times, we should detect
this situation and avoud effecting the fd in other threads.
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
- Remove the redundant holder, as nxsem now manages hoder TID
- Remove DEBUGASSERTIONS which are managed in nxsem
- Remove the "reset" handling logic, as it is now managed in nxsem
- Inline the simplest functions
Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
This puts the mutex support fully inside nxsem, allowing
locking the mutex and setting the holder with single atomic
operation.
This enables fast mutex locking from userspace, avoiding taking
critical_sections, which may be heavy in SMP and cleanup
of nxmutex library in the future.
Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
When compiling lib_backtrace.c after set CONFIG_LIBC_BACKTRACE_BUFFSIZE,
there will be compilation error warnings. This is because spin_unlock_irqrestore
incorrectly used pool->lock during unlocking, which has been corrected to bp->lock.
Signed-off-by: Baichuan Rong <rongbaichuan1027@163.com>
Optimize crc32 standard(poly:0x04C11DB7) and crc32
castagnoli(poly:0x1EDC6F41) with arm crc32 extension instructions.
For example, crc32 standard caculates(lookup crc32 table) 1812 bytes data,
reduced the time from 118 us to 14 us through optimization.
Performance improved ~700%
Signed-off-by: Jinliang Li <lijinliang1@lixiang.com>
Summary:
Use atomic_cmpxchg to ensure that in multithreaded situations, if someone releases the buffer, it can be applied for in time. And use atomic_ulong to save free_bitmap
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
If the current platform does not require a large PATH_MAX size support and toolchain supports alloca(),
we could turn off this option to improve performance.
Signed-off-by: chao an <anchao@lixiang.com>
Modify the kernel to use only atomic_xx and atomic64_xx interfaces,
avoiding the use of sizeof or typeof to determine the type of
atomic operations, thereby simplifying the kernel's atomic
interface operations.
Signed-off-by: zhangyuan29 <zhangyuan29@xiaomi.com>
We could call backtrace from mm module and access to kasan protected mm_node.backtrace field. Disable kasan check for backtrace_format.
Signed-off-by: xuxingliang <xuxingliang@xiaomi.com>
This patch fixed userspace headers conflict. Architecture-related definition and API should not be exposed to users.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
In circbuf_get_read/writeptr, when circbuf is full, off == pos, and
*size = off - pos = 0. So add circbuf_is_full() condition to return
correct *size.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Follow the elf format, correct the memory region flag description:
Executable 0x1, Writable 0x2, Readable 0x4
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
In order to directly read the version information of the current file from elf or bin files, memory files, etc., for easy debugging and one-to-one correspondence.
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
Piyush Patle
chenzhaoxiang
yukangzhi
wangzhi16
guoshichao
buxiasen
anjiahao
Halysson
George Poulios
raiden00pl
Lars Kruse
dongjiuzhu1
Jukka Laitinen
rongbaichuan
chao an
Jinliang Li
wangjianyu3
zhangshoukui
YAMAMOTO Takashi
chenrun1
chao an
zhangyuan29
xuxingliang
ouyangxiangzhen
Bowen Wang
likun17
yinshengkai
xuxin19
wangmingrong1
Xiang Xiao