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Currently, vector registers are not placed continuously in the stack. Place v31 - v0 in order from high address to low address to facilitate debugger analysis of task stack context.
facilitate debugger analysis of task stack context.
@Saiiijchan Would you please help us understand how does this change facilitate debugger analysis of task stack context?
Our debugger team is developing a GDB tool for FreeRTOS that can parse the task context from the stack. It would be easier to implement if the registers were arranged sequentially.
@Saiiijchan I made a change to change the mstatus location in the context. I think it should not have any impact on this change, would you please double confirm that your change still works?
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Currently, vector registers are not placed continuously in the stack. Place v31 - v0 in order from high address to low address to facilitate debugger analysis of task stack context.
Vector general register layout:
Before:
+--------------+ <-- High Address
| v7 |
+--------------+
| v6 |
+--------------+
| ... |
+--------------+
| v0 |
+--------------+ <-- v0 - v7
| v15 |
+--------------+
| v14 |
+--------------+
| ... |
+--------------+
| v8 |
+--------------+ <-- v8 - v15
| ... |
+--------------+
| v24 |
+--------------+ <-- Low address
After:
+--------------+ <-- High Address
| v31 |
+--------------+
| v30 |
+--------------+
| ... |
+--------------+
| v1 |
+--------------+
| v0 |
+--------------+ <-- Low Address
Description
Test Steps
Checklist:
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