test code hello_main
int main(int argc, FAR char *argv[])
{
uint32_t *p = 0xdeedbeff;
*p = 0xffffff;
printf("%p\n %x\n", p, *p);
return 0;
}
qemu mps3-an547 hello_main :
Triggering an exception, and gdb backtrace is:
before:
(gdb) bt
/#0 0x0001168a in systick_getstatus (lower_=0x100010c <g_systick_lower>, status=0x1000a30 <g_intstackalloc+1600>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_systick.c:142
/#1 0x000122f4 in current_usec () at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:105
/#2 0x0001234c in udelay_accurate (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:115
/#3 0x000124bc in up_udelay (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:463
/#4 0x0001249e in up_mdelay (milliseconds=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:446
/#5 0x0000920c in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:830
/#6 0x0000937c in _assert (filename=0x393f8 "/arch/arm/src/armv8-m/arm_busfault.c", linenum=113, msg=0x393f0 "panic", regs=0x1008500)
at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:940
/#7 0x00000e2c in arm_busfault (irq=3, context=0x1008500, arg=0x0 <up_ndelay>) at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_busfault.c:113
/#8 0x000012d2 in arm_hardfault (irq=3, context=0x1008500, arg=0x0 <up_ndelay>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_hardfault.c:142
/#9 0x00008b20 in irq_dispatch (irq=3, context=0x1008500) at /home/ajh/work/vela_system/nuttx/sched/irq/irq_dispatch.c:145
/#10 0x0000041a in arm_doirq (irq=3, regs=0x1008500) at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_doirq.c:103
/#11 0x0000034e in exception_common () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_exception.S:224
after:
(gdb) bt
/#0 systick_is_running () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_systick.c:106
/#1 0x000125c0 in systick_getstatus (lower_=0x1000114 <g_systick_lower>, status=0x1007a20)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_systick.c:141
/#2 0x0001323c in current_usec () at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:105
/#3 0x00013294 in udelay_accurate (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:115
/#4 0x00013404 in up_udelay (microseconds=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:463
/#5 0x000133e6 in up_mdelay (milliseconds=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_timer.c:446
/#6 0x00008c5c in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:816
/#7 0x00008e88 in _assert (filename=0x39408 "/arch/arm/src/armv8-m/arm_busfault.c", linenum=113, msg=0x39400 "panic", regs=0x1007cf0)
at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:915
/#8 0x00000ce4 in arm_busfault (irq=3, context=0x1007cf0, arg=0x0 <up_ndelay>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_busfault.c:113
/#9 0x0000118a in arm_hardfault (irq=3, context=0x1007cf0, arg=0x0 <up_ndelay>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_hardfault.c:142
/#10 0x000086cc in irq_dispatch (irq=3, context=0x1007cf0) at /home/ajh/work/vela_system/nuttx/sched/irq/irq_dispatch.c:145
/#11 0x0000041e in arm_doirq (irq=3, regs=0x1007cf0) at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_doirq.c:99
/#12 0x00000360 in exception_common () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv8-m/arm_exception.S:230
/#13 0x00027a8c in hello_main (argc=1, argv=0x1006e20) at /home/ajh/work/vela_system/apps/examples/hello/hello_main.c:39
/#14 0x00014968 in nxtask_startup (entrypt=0x27a7d <hello_main>, argc=1, argv=0x1006e20)
at /home/ajh/work/vela_system/nuttx/libs/libc/sched/task_startup.c:72
/#15 0x0000f450 in nxtask_start () at /home/ajh/work/vela_system/nuttx/sched/task/task_start.c:116
/#16 0x00000000 in ?? ()
(gdb)
qemu armv7a nsh, hello_main:
before:
(gdb) bt
/#0 udelay_coarse (microseconds=156000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:431
/#2 0x0060c630 in up_udelay (microseconds=microseconds@entry=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:416
/#3 0x0060c644 in up_mdelay (milliseconds=milliseconds@entry=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:401
/#4 0x006056bc in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:816
/#5 _assert (filename=filename@entry=0x63047f "/arch/arm/src/armv7-a/arm_dataabort.c", linenum=linenum@entry=157, msg=msg@entry=0x62f56d "panic",
regs=<optimized out>, regs@entry=0x4020af10) at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:915
/#6 0x0060bd74 in arm_dataabort (regs=0x4020af10, dfar=<optimized out>, dfsr=<optimized out>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_dataabort.c:157
/#7 0x0060bc04 in arm_vectordata () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_vectors.S:438
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)
after:
(gdb) bt
/#0 udelay_coarse (microseconds=192000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:431
/#2 0x0060c650 in up_udelay (microseconds=microseconds@entry=250000) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:416
/#3 0x0060c664 in up_mdelay (milliseconds=milliseconds@entry=250) at /home/ajh/work/vela_system/nuttx/drivers/timers/arch_alarm.c:401
/#4 0x006056bc in reset_board () at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:816
/#5 _assert (filename=filename@entry=0x63047f "/arch/arm/src/armv7-a/arm_dataabort.c", linenum=linenum@entry=157, msg=msg@entry=0x62f56d "panic",
regs=<optimized out>, regs@entry=0x4020af10) at /home/ajh/work/vela_system/nuttx/sched/misc/assert.c:915
/#6 0x0060bd94 in arm_dataabort (regs=0x4020af10, dfar=<optimized out>, dfsr=<optimized out>)
at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_dataabort.c:157
/#7 0x0060bc08 in arm_vectordata () at /home/ajh/work/vela_system/nuttx/arch/arm/src/armv7-a/arm_vectors.S:453
/#8 0x00620cd4 in hello_main (argc=4999, argv=0x0) at /home/ajh/work/vela_system/apps/examples/hello/hello_main.c:41
/#9 0x0060d320 in nxtask_startup (entrypt=0x620cc4 <hello_main>, argc=1, argv=0x4020a088)
at /home/ajh/work/vela_system/nuttx/libs/libc/sched/task_startup.c:72
/#10 0x00609b50 in nxtask_start () at /home/ajh/work/vela_system/nuttx/sched/task/task_start.c:116
/#11 0x00000000 in ?? ()
qemu risc-v nsh
before:
(gdb) bt
/#0 udelay_coarse (microseconds=228000, microseconds@entry=891896832) at timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at timers/arch_alarm.c:431
/#2 0x8000397e in up_udelay (microseconds=microseconds@entry=250000) at timers/arch_alarm.c:416
/#3 0x80003988 in up_mdelay (milliseconds=milliseconds@entry=250) at timers/arch_alarm.c:401
/#4 0x80011f1c in reset_board () at misc/assert.c:813
/#5 0x80011f7a in _assert (filename=filename@entry=0x0, linenum=linenum@entry=0, msg=msg@entry=0x8002114c "panic", regs=<optimized out>,
regs@entry=0x80030704) at misc/assert.c:915
/#6 0x80006ad6 in riscv_exception (mcause=<optimized out>, regs=0x80030704, args=<optimized out>) at common/riscv_exception.c:129
/#7 0x80000d9e in riscv_doirq (irq=7, regs=<optimized out>) at common/riscv_doirq.c:99
/#8 0x80000164 in exception_common () at common/riscv_exception_common.S:210
Backtrace stopped: frame did not save the PC
(gdb)
after
(gdb) bt
/#0 0x80003922 in udelay_coarse (microseconds=90000, microseconds@entry=891896832) at timers/arch_alarm.c:67
/#1 up_ndelay (nanoseconds=nanoseconds@entry=250000000) at timers/arch_alarm.c:431
/#2 0x8000397e in up_udelay (microseconds=microseconds@entry=250000) at timers/arch_alarm.c:416
/#3 0x80003988 in up_mdelay (milliseconds=milliseconds@entry=250) at timers/arch_alarm.c:401
/#4 0x80011f2a in reset_board () at misc/assert.c:816
/#5 0x80011f7a in _assert (filename=filename@entry=0x0, linenum=linenum@entry=0, msg=msg@entry=0x8002114c "panic", regs=<optimized out>,
regs@entry=0x80030704) at misc/assert.c:915
/#6 0x80006ad6 in riscv_exception (mcause=<optimized out>, regs=0x80030704, args=<optimized out>) at common/riscv_exception.c:129
/#7 0x80000d9e in riscv_doirq (irq=7, regs=<optimized out>) at common/riscv_doirq.c:99
/#8 0x80000166 in exception_common () at common/riscv_exception_common.S:215
/#9 0x8001792a in hello_main (argc=<optimized out>, argv=<optimized out>) at hello_main.c:41
/#10 0x80004b52 in nxtask_startup (entrypt=0x80030704, argc=1, argv=0x800300e8) at sched/task_startup.c:72
/#11 0x80001e72 in nxtask_start () at task/task_start.c:116
/#12 0x00000000 in ?? ()
Backtrace stopped: frame did not save the PC
(gdb)
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
the author has submitted the CLA and the license can be migrated to ASF
Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
both co-authors have submitted the CLA and the license can be migrated to ASF
Co-authored-by: Dong Heng <dongheng@espressif.com>
Co-authored-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Copyright and Author information is missing from the License and was filled with
commit authorship
Signed-off-by: Jakub Janousek <janouja9@fel.cvut.cz>
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Since the SCRATCH register is used to store the percpu pointer,
which should not be accessed by other CPUs, we can replace the
critical section with irqsave/irqrestore.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
This patch allow public arch level code use them, make it possible to access system register in common code, such as percpu.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
The corespi fpga block supports just one frame length, which is defined when
the block is instantiated on the FPGA.
This adds support for emulating different frame lengths if they are multiples
of 8-bit. That is, with 8-bit corespi one can do 8,16 and 24-bit transfers.
This is implemented by simply writing several 8-bit frames for a single word
when needed.
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
SPI TX_DONE interrupt can be received after a semaphore timeout,
but before interrupts are disabled. This will leave the semaphore
to the signaled state.
After a timeout the semaphore is always reset to non-signaled state
to fix this race condition.
Signed-off-by: Tero Salminen <tero.salminen@unikie.com>
L2 needs to be zeroed to make the ECC happy. However, if there's
more than one bootloader in the chain, the cache doesn't need to
be wiped every time. One time is enough. Thus, make this optional
so that it's initialized only when really needed.
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
Fix CMake-based build system to include the toolchain's libm only
when `CONFIG_LIBM_TOOLCHAIN` is selected. Before this commit, if
the user selected `CONFIG_LIBM_NEWLIB`, for instance, the build
system would still link the toolchain's libm functions instead of
the ones provided by newlib.
reason:
up_set_current_regs initially had two functions:
1: To mark the entry into an interrupt state.
2: To record the context before an interrupt/exception. If we switch to a new task, we need to store the upcoming context regs by calling up_set_current_regs(regs).
Currently, we record the context in other ways, so the second function is obsolete. Therefore, we need to rename up_set_current_regs to better reflect its actual meaning, which is solely to mark an interrupt.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
CC: mqueue.c common/riscv_exit.c: In function 'up_exit':
common/riscv_exit.c:65:33: error: 'tcb' undeclared (first use in this function); did you mean 'tcb_s'?
65 | g_running_tasks[this_cpu()] = tcb;
| ^~~
| tcb_s
Signed-off-by: hujun5 <hujun5@xiaomi.com>
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
reason:
simplify context switch
sys_call0(SYS_switch_context)
sys_call0(SYS_restore_context)
size nuttx
before
text data bss dec hex filename
148021 921 26944 175886 2af0e nuttx
after
text data bss dec hex filename
147995 921 26928 175844 2aee4 nuttx
size reduce -42
Signed-off-by: hujun5 <hujun5@xiaomi.com>
Inter-processor interrupts (IPIs) are not cleared via mie/mip registers but
rather, at the MPFS_CLINT_BASE + mhartid * 4 (a word or 4-byte offset for
each hart).
If there's an IPI waiting, the system will continue to boot altough it's
expected to stay at the wfi loop waiting for the IPI.
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
This CONFIG_MPFS_CLKINIT is set with bootloaders by default. However,
this gives an option to have it unset. In some cases, the clocks
may be already set so it becomes unnecessary to re-initialize them.
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
From the RISV-V Privileged Spec v1.10 (3.1.14 MIP/MIE):
Only the bits corresponding to lower-privilege software interrupts
(USIP, SSIP), timer interrupts (UTIP, STIP), and external interrupts
(UEIP, SEIP) in mip are writable through this CSR address; the
remaining bits are read-only.
Thus, it is futile to write to the M-mode status bit via the CSR, only
access via RISCV_IPI is valid.
reason:
1: spin_lock_init and spin_initialize have similar functionalities.
2: spin_lock and spin_unlock should be called in matching pairs.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
profile-generate is used to generate compilation feedback optimization data, not just code coverage data
It will rely on the toolchain library:
nuttx/libs/libc/misc/lib_utsname.c:94:(.text.uname+0x2c): undefined reference to `__gcov_indirect_call_profiler_v4'
arm-none-eabi-ld: nuttx/libs/libc/misc/lib_utsname.c:113:(.text.uname+0x178): undefined reference to `__gcov_indirect_call'
arm-none-eabi-ld: nuttx/libs/libc/misc/lib_utsname.c:113:(.text.uname+0x188): undefined reference to `__gcov_time_profiler_counter'
arm-none-eabi-ld: nuttx/staging/libc.a(lib_utsname.o):(.data..LPBX0+0x30): undefined reference to `__gcov_merge_time_profile'
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
Add function description for function prototype of `riscv_jump_to_user`
to make it easier to read, and fix some inconsistent comment style in
`riscv_internal.h`.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
reason:
When entering an exception or interrupt, there are two sets of registers:
one is the "running regs", which we need to save,
and the other is the "ready to running regs", which we may soon use.
For consistency in logic, we can always store the "running regs" in the regs field of g_running_tasks,
otherwise it may lead to errors in the storage location of the "running regs."
When we need to access the "running regs," we should uniformly retrieve them from the regs field of g_running_tasks.
As the next step, we will rename the set_current_regs/up_current_regs functions
for each architecture to more appropriate names, solely for the purpose of identifying interrupts.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
