[263/1096] Building C object libs/libc/CMakeFiles/c.dir/misc/lib_pathbuffer.c.obj
ctc W574: ["libs/libc/misc/lib_pathbuffer.c" 144/3] 'return' with an expression in function returning void
Signed-off-by: chao an <anchao@lixiang.com>
reason:
1In the scenario of active waiting, context switching is inevitable, and we can eliminate redundant judgments.
code size
before
hujun5@hujun5-OptiPlex-7070:~/downloads1/vela_sim/nuttx$ size nuttx
text data bss dec hex filename
262848 49985 63893 376726 5bf96 nuttx
after
hujun5@hujun5-OptiPlex-7070:~/downloads1/vela_sim/nuttx$ size nuttx
text data bss dec hex filename
263324 49985 63893 377202 5c172 nuttx
reduce code size by -476
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic \
-machine virt,virtualization=on,gic-version=3 \
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx
Signed-off-by: hujun5 <hujun5@xiaomi.com>
avoid duplicate definitions of target when
`nuttx_add_extra_library` is called between different models at the same time
Signed-off-by: xuxin19 <xuxin19@xiaomi.com>
Change syslog API naming more reasonable:
1. rename syslog_channel() to syslog_channel_register()
2. rename syslog_channel_remove() to syslog_channel_unregister()
Signed-off-by: chao an <anchao@lixiang.com>
Summary
The original implement for exception handler is very simple and
haven't framework for breakpoint/watchpoint routine or brk instruction.
I refine the fatal handler and add framework for debug handler to
register or unregister. this is a prepare for watchpoint/breakpoint
implement
Signed-off-by: qinwei1 <qinwei1@xiaomi.com>
Stack and backtrace dump for Espressif's SoCs (ESP32, ESP32-S2,
ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2) is now documented in a
new section for each chip entry page.
The script can decode the backtrace dump, considering the syntax
of the backtrace format (properly handle the dump when SMP is
enabled, for instance) based on chip name or the toolchains's
addr2line tool.
- Fix `MAKE_PC_FROM_RA` macro to consider the instruction region
base address;
- Add sanity check for calculated PC and SP registers;
- Check if the stack pointer is within the interrupt stack to
enable backtrace dump if an exception occurs during the ISR;
`CONFIG_XTENSA_INTBACKTRACE` is necessary to enable backtrace dump
for the tasks because exceptions are treated like interrupts (even
when an exception occurs during a normal task execution). It's now
automatically selected when `CONFIG_SCHED_BACKTRACE` is enabled.
This commit also removes outdated Kconfig options.
and move common math funtions to math32.h:
div_round_up
div_round_closest
is_power_of_2
roundup_pow_of_two
rounddown_pow_of_two
Signed-off-by: lipengfei28 <lipengfei28@xiaomi.com>
When the toolchain does not support atomic, it will use the version implemented by NuttX (low performance version). This scenario is consistent with the original design, so we can ignore it.
see bug here:
https://bugs.llvm.org/show_bug.cgi?id=43603
Error: inode/fs_inodeaddref.c:50:7: error: large atomic operation may incur significant performance penalty; the access size (4 bytes) exceeds the max lock-free size (0 bytes) [-Werror,-Watomic-alignment]
50 | atomic_fetch_add(&inode->i_crefs, 1);
| ^
/tools/clang-arm-none-eabi/lib/clang/17/include/stdatomic.h:152:43: note: expanded from macro 'atomic_fetch_add'
152 | #define atomic_fetch_add(object, operand) __c11_atomic_fetch_add(object, operand, __ATOMIC_SEQ_CST)
| ^
1 error generated.
make[1]: *** [Makefile:83: fs_inodeaddref.o] Error 1
Error: inode/fs_inodefind.c:74:7: error: large atomic operation may incur significant performance penalty; the access size (4 bytes) exceeds the max lock-free size (0 bytes) [-Werror,-Watomic-alignment]
74 | atomic_fetch_add(&node->i_crefs, 1);
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
Summary:
1.Modified the i_crefs from int16_t to atomic_int
2.Modified the i_crefs add, delete, read, and initialize interfaces to atomic operations
The purpose of this change is to avoid deadlock in cross-core scenarios, where A Core blocks B Core’s request for a write operation to A Core when A Core requests a read operation to B Core.
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
This commit added ifdef macro to sigwork_s. When CONFIG_SIG_EVTHREAD is
not defined, the struct sigwork_s will be empty struct, which is helpful
to reduce bss size.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
This commit simplified thread ID dispatching logic by integrating it into the `nxsig_dispatch` function.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
