riscv-software-src / riscv-software-src/opensbi

[Debug opensbi] Using qemu+gdb to debug opensbi

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Dominant language
C
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Description

Hi,

building opensbi, and then starting system using qemu with -S -s params

in other terminal, riscv64_unknown_linux_gdb fw_payload.elf
target remote :1234
b sbi_init
c
n
will get tips as below, and can't stop on next line
image

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the reported QEMU and GDB session with fw_payload.elf, including the breakpoint at sbi_init and the step-over command. Inspect the debugger output shown in the issue and the sbi_init entry point. Done means identifying why execution does not stop on the next line and documenting or correcting the behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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