The number of exception for risc-v is 16 (0 ~ 15)
for the machine ISA version 1.12 or earlier, the number of exception is 20
(0 ~ 19) from the ISA version 1.13. And maybe changed in the future.
Using a dedicated option to control the exception number to allow the earlier
version chip with customized exception number (e.g. 16 ~ 19 used) to define
the exception reason string correctly.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Fix an issue of driver open failure caused by the following commit
that changes the initial value of inode reference.
43d0d95f81 fs/inode: using inode reference to indicate unlink and simply code
The interaction between the shell service in adb and adbd occurs through a pseudo-terminal (pty).
so, when a command is launched through adb shell from a PC, users now have the ability to pause
or kill the launched,application by inputting specific commands CONFIG_TTY_SIGTSTP_CHAR or
CONFIG_TTY_SIGTINT_CHAR, akin to the capabilities provided by nsh.
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
after enable both CONFIG_BUILD_KERNEL and CONFIG_ARCH_VMA_MAPPING
arch.h:141:18: error: 'ARCH_SHM_MAXPAGES' undeclared here
Signed-off-by: wanggang26 <wanggang26@xiaomi.com>
LD: nuttx
arm-none-eabi-ld: /home/ligd/platform/mainline/nuttx/nuttx section `.bss' will not fit in region `ksram'
arm-none-eabi-ld: region `ksram' overflowed by 40 bytes
make[1]: *** [Makefile:212: nuttx] Error 1
make: *** [tools/Unix.mk:538: nuttx] Error 2
Signed-off-by: ligd <liguiding1@xiaomi.com>
Converted the timer overrun check from a loop-based approach to a division-based method. This change ensures a deterministic worst-case execution time (WCET), even if it might not outperform the loop in average scenarios.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
This patch added support for SIGEV_THREAD_ID and sigev_notify_thread_id.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
Signed-off-by: ligd <liguiding1@xiaomi.com>
arm-none-eabi-ld: /github/workspace/sources/nuttx/nuttx section `.bss' will not fit in region `ksram'
arm-none-eabi-ld: region `ksram' overflowed by 16 bytes
Signed-off-by: zhangshoukui <zhangshoukui@xiaomi.com>
The commit c4d8d937d5 added null byte for
obstack_vprintf and thus to obstack_printf. I probably lost my marbles
but the same test I run previously now won't append null byte at the end
and this "fix" now causes regressions in code using obstack.
For the reference this is the testing code:
#define _GNU_SOURCE
#include <obstack.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#define obstack_chunk_alloc malloc
#define obstack_chunk_free free
static void print(struct obstack *obs, const char *fmt, ...) {
va_list arg;
va_start(arg, fmt);
obstack_vprintf(obs, fmt, arg);
va_end(arg);
}
int main(int argc, char *argv[]) {
struct obstack obs;
obstack_init(&obs);
obstack_printf(&obs, "this %s", "text ");
obstack_printf(&obs, "is appended");
print(&obs, " as well as %s", "vprintf text");
obstack_1grow(&obs, '\0');
printf("%s\n", (char *)obstack_finish(&obs));
obstack_free(&obs, NULL);
return 0;
}
The output on NuttX without this patch:
> obstest
this text
The output on NuttX with this patch:
> obstest
this text is appended as well as vprintf text
The output with GlibC:
$ gcc test.c && ./a.out
this text is appended as well as vprintf text
$ ldd a.out
linux-vdso.so.1 (0x00007ffff7fc5000)
libc.so.6 => /nix/store/3dyw8dzj9ab4m8hv5dpyx7zii8d0w6fi-glibc-2.39-52/lib/libc.so.6 (0x00007ffff7dc8000)
/nix/store/3dyw8dzj9ab4m8hv5dpyx7zii8d0w6fi-glibc-2.39-52/lib/ld-linux-x86-64.so.2 => /nix/store/3dyw8dzj9ab4m8hv5dpyx7zii8d0w6fi-glibc-2.39-52/lib64/ld-linux-x86-64.so.2 (0x00007ffff7fc7000)
The output with Musl (and obstack_vprintf removed):
$ gcc -lobstack test-musl.c && ./a.out
this text is appended
$ ldd a.out
/nix/store/00w9nz0343pxk7hbsjzq9bzaby65hk4g-musl-1.2.3/lib/ld-musl-x86_64.so.1 (0x7ffff7f4b000)
libobstack.so.1 => /nix/store/qvv16dqn85qwz9vz9wvpnv435z0n5msr-musl-obstack-1.2.3/lib/libobstack.so.1 (0x7ffff7f3b000)
libc.so => /nix/store/00w9nz0343pxk7hbsjzq9bzaby65hk4g-musl-1.2.3/lib/ld-musl-x86_64.so.1 (0x7ffff7f4b000)
GOTPCRELX reloc available only for CONFIG_ARCH_ADDRENV=y
when CONFIG_ARCH_ADDRENV is not set, CONFIG_ARCH_TEXT_VBASE is not specified
so we can't relocate
Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
When we do not drop notifier from g_notifier_pending, we need an
isolated dq entry for this queue, otherwise the queued work_s's dq entry
may be modified by the work queue and breaks the chain of
g_notifier_pending.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Return 1 to indicate the work was not cancelled.
Because it is currently being processed by work thread,
but wait for it to finish.
Signed-off-by: ligd <liguiding1@xiaomi.com>
The new API is defined by GNU and implemented in other LibCs, such as
Musl.
This also modifies API of obstack_blank_fast and obstack_1grow_fast.
These are defined as returning void and thus return value here is
incompatibility with other implementations.
rpmsg_port_spi_connect can not be used here because peer may have not finished
the last transmission which will keep the sreq gpio in high level, and it will
read an error data frame.
Signed-off-by: liaoao <liaoao@xiaomi.com>
Because the data transmision may has been started before
rpmsg_port_initialize(), this should be not allowed.
Signed-off-by: liaoao <liaoao@xiaomi.com>
Rpmsg Port Uart is a new rpmsg transport layer.
Just like the rpmsg port spi, the difference is that the physical
communication method changed from SPI to UART.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Add get_local_cpuname to the rpmsg framework ops to support communicate
with the same remote core with multi rpmsg transport.
Some rpmsg services will send local cpu name to remote core and then let
remote core to connect local core by using this cpu name, when there are
multi rpmsg channels with same remote core, the remote core may connect
to incorrect core, so use the error rpmsg channel.
For example, there are two rpmsg channels between ap and audio:
ap core audio core
[ap1] <-- rpmsg virtio1 --> [audio1]
[ap2] <-- rpmsg virtio2 --> [audio2]
When we want to use the rpmsg virtio1 to communicate, ap core may send
local cpuname "ap2" to audio, so the audio core use remote cpu "ap2" to
connect with ap, and resulting in the use of incorrect rpmsg channel.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Rpmsg Router is new rpmsg transport layer, it can router the rpmsg
messages to a cpu that not directly connected with local cpu by Rpmsg,
For the rpmsg services, it is as if there is a real Rpmsg Channel between
the local cpu and the remote cpu.
For examples, there are three cpus: ap, cp and audio.
ap and cp, ap and audio has share memory and be connected by Rpmsg VirtIO,
so ap and cp, ap and audio can communicate with each other by Rpmsg, but
cp can not communicate with audio direclty.
[cp] <-- rpmsg virtio --> [ap] <-- rpmsg virtio --> [audio]
With rpmsg router, the cp can communicate with audip by Rpmsg dereclty because
the router in ap will forward the rpmsg message from cp/audio to audio/cp, like
this:
+<----- rpmsg router --> hub <-- rpmsg router ------>+
| | |
[cp] <-- rpmsg virtio --> [ap] <-- rpmsg virtio --> [audio]
Signed-off-by: yintao <yintao@xiaomi.com>
