Summary:
add check !defined(__STDC_NO_ATOMICS__)
If the macro constant __STDC_NO_ATOMICS__(C11) is defined by the compiler, the header <stdatomic.h>, the keyword _Atomic, and all of the names listed here are not provided.
refer to:https://en.cppreference.com/w/c/atomic
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
1. Since the implementation of gcov has changed since clang17, versions before clang17 need to use the libunwind.a file
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
currently, nuttx implements readv/writev on the top of read/write.
while it might work for the simplest cases, it's broken by design.
for example, it's impossible to make it work correctly for files
which need to preserve data boundaries without allocating a single
contiguous buffer. (udp socket, some character devices, etc)
this change is a start of the migration to a better design.
that is, implement read/write on the top of readv/writev.
to avoid a single huge change, following things will NOT be done in
this commit:
* fix actual bugs caused by the original readv-based-on-read design.
(cf. https://github.com/apache/nuttx/pull/12674)
* adapt filesystems/drivers to actually benefit from the new interface.
(except a few trivial examples)
* eventually retire the old interface.
* retire read/write syscalls. implement them in libc instead.
* pread/pwrite/preadv/pwritev (except the introduction of struct uio,
which is a preparation to back these variations with the new
interface.)
1. CONFIG_ARCH_COVERAGE has been replaced by CONFIG_SCHED_GCOV
2. Delete the SIM-specific GCOV_ALL configuration and change it to a universal configuration for all architectures
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
tmpfile.rename(args.output)
^^^^^^^^^^^^^^
AttributeError: '_io.BufferedRandom' object has no attribute 'rename'. Did you mean: 'name'?
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Add sem_wait fast operations, use atomic to ensure
atomicity of semcount operations, and do not depend
on critical section.
Test with robot:
before modify:
nxmutex_lock cost: 78 ns
nxmutex_unlock cost: 82 ns
after modify:
nxmutex_lock cost: 28 ns
nxmutex_unlock cost: 14 ns
Signed-off-by: zhangyuan29 <zhangyuan29@xiaomi.com>
If device encryption is not enabled by eFuse, and partiton mark as
encrypted flag, then encrypted MTD is used.
That is no problem in write and read operation, but failed while
using spi_flash_mmap(...) since de-encrypt is not processed.
So, back to use non-encrypted MTD following API Guide:
If flash encryption is not enabled, the flag "encrypted" has no effect
- i.MX93 LPUARTs have 16-byte RX and TX FIFOs. Take those into use and correct some related register definitions
- There is no reason to loop inside interrupt handler, remove the looping
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
- Remove GPIO (SW) based flow control. It didn't work, and pure HW flow control seems to work fine
- Remove some unneeded ifdefs and change bit-field flags to booleans to clean up the code
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
1. cmake uses clang++ as a connector, and does not currently support:
clang++: error: unknown argument: '-wl,--print-memory-usage'
clang++: error: no input files
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
adapts to third-party code compilation. in the process of porting EtherCAT,
we encounter some situations where the structure is not defined, or the
returned data types do not match the expectations. Refer to the EtherCAT
implementation of other systems and add relevant definitions.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
supports the usrsock client to subscribe netlink events,
so that it can detect events such as link connection changes.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
- When opening a NFS file in append mode, its file pointer was at offset
0 instead of the end of file.
- When creating a NFS file, the response read pointer wasn't advanced
after reading the attributes_follows bool, which caused the attributes
to be off by 4 bytes. For example, the file size read the GID.
Signed-off-by: Alejandro Aguirre <alejandro.aguirre@midokura.com>
1. enable CONFIG_BUILTIN_COMPILER_RT to built libclang_rt.builtins-xxx.a and no longer use the compiler's built-in
2. Modify clang version acquisition to get two decimal points
3. It has been ported to support four architectures: ARM, ARM64, RISCV, and x86_64, among which ARM has been validated
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
Use VSCode + clangd plugin to develop the code, the clangd will save the
metadata into .cache directory, it is about the compile_commands.json:
cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=True
Add the .cache into .gitignore for friendly clangd development environment.
Signed-off-by: Haiyue Wang <haiyue.wang@outlook.com>
For kernel builds, shared memory is automatically aligned to page size.
For flat and protected builds, we align the memory size to the CPU cache
line size.
Failure to align memory properly could result in partial data read/write
by the CPU and peripherals, potentially causing data corruption during
cache flushes or invalidations.
Signed-off-by: xuxingliang <xuxingliang@xiaomi.com>
xuxin19