In file_read(), asynchronous reading is supported, so partial reads and the minread parameter are no longer needed.
Signed-off-by: zhongzhijie1 <zhongzhijie1@xiaomi.com>
In btuart_rxwork, There is no case for parsel HCI data of ISO type, but there are corresponding processes in the SIM and vendor driver code.
Signed-off-by: zhongzhijie1 <zhongzhijie1@xiaomi.com>
When the nread return value < 0, if the total length ntotal that has been read is > 0, the function returns ntotal; otherwise, it returns the nread error code.
Signed-off-by: zhongzhijie1 <zhongzhijie1@xiaomi.com>
Read as much data as possible initially, then process each packet individually. Defined the read buffer within the structure and added a rx_len variable to indicate the current read offset. After processing each complete packet, leftover data is moved to rxbuf[0] and rx_len is reduced by the length of the processed packet. The next packet process will start from rxbuf[0] after the read ends at new rxbuf[rx_len].
Signed-off-by: zhongzhijie1 <zhongzhijie1@xiaomi.com>
When initializing a memory block, the shadow area record of the first
memory block is used first.When uninitializing, unpoison is required, otherwise the memory will be marked incorrectly.
The following case will cause problems:
void *mem = malloc(1024);
struct mm_heap_s *a = mm_initialize("hello", mem, 1024);
int *b = mm_malloc(a, sizeof(int *));
*b = 100;
printf("Hello, World!! %d\n", *b);
mm_free(a, b);
mm_uninitialize(a);
free(mem);
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
This product does not have MTE. MTE is only available for Arch or higher extensions of armv8-5+memory tags
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
This can avoid crashes caused by uninitialized accesses to initialized variables in non-chip memory.
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
1. Add hw_tags.c, which will call arm64_mte to implement tagging of memory blocks by operating registers
2. It has been able to run normally on the default NX memory allocator, excluding mempool and tlsf
3. On more complex configurations, memory tests such as memstress can run normally without system crashes
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
When the size of the new realloc is larger than the old one and can be expanded forward and backward, the tag of oldmem needs to be set to the same as newmem, otherwise memcpy will report a kasan error.
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
Support hardware debugging of ARM architecture, and support smp mode.We can use "up_debugpoint_add" or "up_debugpoint_remove" to add breakpoints, and the hardware will jump into the interrupt after detecting it.
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
after this commits
commit e7fa4cae6cbf567266985c8072db1f51ad480943
Author: Yanfeng Liu <yfliu2008@qq.com>
Date: Fri May 17 06:11:52 2024 +0800
sched/tcb: use shared group for kthreads
all kernel thread share group idle
and should not dup filelist to this group
Signed-off-by: guohao15 <guohao15@xiaomi.com>
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
After it is not zero, the preceding member of the next node will no longer belong to the valid area of the previous alloc node.
Due to the existence of precedence, the memory block size of the node can only be aligned with sizeof(mmsize_t).
This configuration will be applied in the following scenarios when set 8:
ARM64 MTE hardware tag KASan, which requires the tag's memory address to be 16-byte aligned and the memory size must also be 16-byte aligned
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
If the NET_TCPBACKLOG configuration is not enabled, no I/O event will be
triggered for the socket file descriptor in poll/epoll. As a result, the
connection will not be accepted, leading to a failure in the TCP handshake.
The problem is that users may not have noticed this configuration,
no event will be received when polling the socket fd.
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
1. When the Clang compiler turns on "-fsanitize=kernel-address", inlining, global variables, and stack detection are enabled by default and must be turned off manually.
2. -mllvm is the parameter passing method of Clang, and --param is the parameter passing method of GCC
After the modification, KASan compilation and operation will be supported for Clang 18 and above
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
