go through each inode and print its structure info
in the form like below:
├── i_name: bin, i_ino: 51
│ i_parent: , i_peer: data, i_child: , i_crefs: 1, i_flags: 3
│ ......(other info)
│ ├── i_name: audio, i_ino: 5
│ │ i_parent: dev, i_peer: binder, i_child: mixer......
Signed-off-by: zhengyu9 <zhengyu9@xiaomi.com>
support mount command in gdb, print mount information
test result:
/bin type binfs
/data type hostfs
/etc type romfs
/proc type procfs
/resource type hostfs
/tmp type tmpfs
Signed-off-by: zhengyu9 <zhengyu9@xiaomi.com>
1. Remove Nx prefix for nuttx unique commands.
2. Add docstring for most of the commands in order to show help message.
3. Add 'init_once' method for Memmap command. The prerequisite is checked the moment it's used.
Signed-off-by: xuxingliang <xuxingliang@xiaomi.com>
Read the whole memory costs additional time. When the number memory nodes is
small, test on qemu shows that read memory directly is faster.
Signed-off-by: xuxingliang <xuxingliang@xiaomi.com>
1. Avoid to_bytes by using memoryview directly.
2. No need to call gdb to cast to char *.
3. Cache the memory data without invoke gdb in every iteration.
4. Do code cleanup.
memleak speed improved from 261.93 seconds to 29.9 seconds for x4b
usecase.
Signed-off-by: xuxingliang <xuxingliang@xiaomi.com>
1. add get macro related inteface, for now we have't fully implemented
the way to expand and evalute macros at runtime. We just deal with some macros that can be expand and evaluate into essential constants that will be needed later.
2. rearrange utility functions in a different order
3. reimplment the get register API to make it more commonly used
Signed-off-by: Gao Jiawei <gaojiawei@xiaomi.com>
Python Exception <class 'gdb.error'>: Attempt to assign to an unmodifiable value.
Python Exception <class 'gdb.error'>: Error occurred in Python: Attempt to assign to an unmodifiable value.
Error occurred in Python: Error occurred in Python: Attempt to assign to an unmodifiable value.
Signed-off-by: anjiahao <anjiahao@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>
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>
The method of passing in parameters to memdump is modified and the
incoming address is added. After traversing the node to which the
address belongs, the memdump command will end.
Signed-off-by: wangmingrong <wangmingrong@xiaomi.com>
support arch:
sim x86
sim x86_64
arm32 all series
If we need to support more architectures in the future,
just add the 'g_tcbinfo' of the corresponding architecture
support thread command:
1. thread <id>
switch thread
2. info thread
list all thread info
3. thread apply [all | id list] command
like this:
thread apply all bt
thread apply all bt full
thread apply 1 2 4 bt
thread apply all info r
4. nxsetregs
Set registers to the specified values.
Usage: nxsetregs [regs]
Etc: nxsetregs
nxsetregs g_current_regs[0]
nxsetregs tcb->xcp.regs
Nxsetregs g_pidhash[0].tcb->xcp.regs
Default regs is g_current_regs[0],if regs is NULL,
it will not set registers.
Because NuttX enters exception_common during a crash,
this assembly function manipulates the stack pointer (sp),
causing GDB to be unable to trace back to the first context of the crash.
Instead, it shows the context of the interrupt stack. By using nxsetregs,
it is possible to forcefully set the first context to
the one before the interrupt occurred.
Notice:
Switching threads is achieved by setting registers,
so registers need to be restored before continue,
please use 'c' to continue instead of 'continue'
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
This patch add an example and pyhton base modules:
1.add memdump.py is an example to analyze memory
usage by python script.
2.add The most basic data structure analysis, like list, etc.
future ideas:
Maybe we can add modules related to "sched, drivers, arch, fs.." to
automatically analyze scripts to debug some problems
References:
linux kernel (https://github.com/torvalds/linux/tree/master/scripts/gdb)
The official manual of gdb (https://sourceware.org/gdb/onlinedocs/gdb/Python-API.html)
Change-Id: Ib9025a0a141cb89f3813526f7c55dcb28de31ed9
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
