in SMP, signal processing cannot be nested, we use xcp.sigdeliver to identify whether there is currently a signal being processed, but this state does not match the actual situation
One possible scenario is that signal processing has already been completed, but an interrupt occurs, resulting in xcp.sigdeliver not being correctly set to NULL,
At this point, a new signal arrives, which can only be placed in the queue and cannot be processed immediately
Our solution is that signal processing and signal complete status are set in the same critical section, which can ensure status synchronization
Signed-off-by: hujun5 <hujun5@xiaomi.com>
Follow the change: https://github.com/apache/nuttx/pull/9151,
if MM_CUSTOMIZE_MANAGER is enabled, heap memory manager in host is used,
for example in sim:asan build.
malloc and related allocation APIs will fall back to host_realloc,
do not free memory of zero-length reallocation. So memory allocations
return valid pointer when request zero size in all sim build.
call stack:
malloc() (mm/umm_heap/umm_malloc.c)
mm_malloc() (arch/sim/src/sim/sim_heap.c)
mm_realloc() (arch/sim/src/sim/sim_heap.c)
host_realloc() (arch/sim/src/sim/posix/sim_hostmemory.c)
host_memalign() (arch/sim/src/sim/posix/sim_hostmemory.c)
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
The fast-unwind implementation of leak-sanitizer will obtain the
current stack top/bottom and frame address(Stack Pointer) for
backtrace calculation:
https://github.com/gcc-mirror/gcc/blob/releases/gcc-13/libsanitizer/lsan/lsan.cpp#L39-L42
Since the scheduling mechanism of NuttX sim is coroutine
(setjmp/longjmp), if the Stack Pointer is switched, the fast-unwind
will unable to get the available address, so the memory leaks on the
system/application side that cannot be caught normally. This PR will
disable fast-unwind by default to avoid unwind failure.
Signed-off-by: chao an <anchao@xiaomi.com>
If CONFIG_MM_CUSTOMIZE_MANAGER enabled on sim, malloc/mmap is bypassed to glibc, so the memory allocated without execution permisson.
For this case, CONFIG_ARCH_USE_TEXT_HEAP can be used.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
If this option is enabled, the working path of nuttx will be modified to the folder where the nuttx file is located.
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
In the previous implementation, PerformanceCounter would cause overflow
after running for a long time, This commit will separate the calculation
of the sec/ms part to avoid this issue, Reference:
https://github.com/cygwin/cygwin/blob/main/winsup/cygwin/clock.cc#L194-L217
Signed-off-by: chao an <anchao@xiaomi.com>
sim_x11events should process all x11 events in each event loop,
otherwise it will cause events to accumulate in the queue and affect the interaction.
Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Updating Simulator for macOS
macOS requires genromfs and X11 Libraries to run Simulators.
* Added instructions to install genromfs
* Added instructions to install X11
Adding Xorg Server
The linker was unable to identify the location of X11 libraries.
removed -L/opt/X11/lib from ln 145
Updating Changes to streamline with other Hosts
user_main: vfork() test
=================================================================
==3754757==ERROR: AddressSanitizer: stack-buffer-underflow on address 0xae9126f0 at pc 0x56845661 bp 0xae912570 sp 0xae912560
READ of size 1 at 0xae9126f0 thread T0
#0 0x56845660 in memcpy string/lib_memcpy.c:44
#1 0x56b70f61 in up_vfork sim/sim_vfork.c:133
#2 0x567c0b85 in vfork (/home/ligd/platform/sim/nuttx/nuttx+0x26bb85)
0xae9126f0 is located 73456 bytes inside of 73728-byte region [0xae900800,0xae912800)
allocated by thread T0 here:
#0 0xf7ab1c2f in __interceptor_posix_memalign ../../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
SUMMARY: AddressSanitizer: stack-buffer-underflow string/lib_memcpy.c:44 in memcpy
Signed-off-by: ligd <liguiding1@xiaomi.com>
sim/sim_doirq.c: In function 'sim_doirq':
Error: sim/sim_doirq.c:79:10: error: function may return address of local variable [-Werror=return-local-addr]
79 | return regs;
| ^~~~
sim/sim_doirq.c:44:14: note: declared here
44 | xcpt_reg_t tmp[XCPTCONTEXT_REGS];
| ^~~
Signed-off-by: ligd <liguiding1@xiaomi.com>
(0)Allocating 3 bytes aligned to 0x00000001
=================================================================
==1461685==ERROR: AddressSanitizer: invalid alignment requested in posix_memalign: 1, alignment must be a power of two and a multiple of sizeof(void*) == 4 (thread T0)
#0 0xf7ab1c2f in __interceptor_posix_memalign ../../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
Signed-off-by: ligd <liguiding1@xiaomi.com>
In order to make compilation warnings and errors easier to be found out,
this commit will disable the printing of the compilation process as much
as possible, and also if you want to restore the log information of the
compilation process, please enable verbose build on command line:
$ make V=0
OR
$ make V=1
| V=0: Exit silent mode
| V=1,2: Enable echo of commands
| V=2: Enable bug/verbose options in tools and scripts
Signed-off-by: chao an <anchao@xiaomi.com>
