diff options
Diffstat (limited to 'riscv/debug_module.cc')
-rw-r--r-- | riscv/debug_module.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/riscv/debug_module.cc b/riscv/debug_module.cc index 5490d0e..920166c 100644 --- a/riscv/debug_module.cc +++ b/riscv/debug_module.cc @@ -661,6 +661,17 @@ bool debug_module_t::perform_abstract_command() return true; } + if (regno == 0x1000 + S0 && write) { + /* + * The exception handler starts out be restoring dscratch to s0, + * which was saved before executing the abstract memory region. Since + * we just wrote s0, also make sure to write that same value to + * dscratch in case an exception occurs in a program buffer that + * might be executed later. + */ + write32(debug_abstract, i++, csrw(S0, CSR_DSCRATCH0)); + } + } else if (regno >= 0x1020 && regno < 0x1040) { unsigned fprnum = regno - 0x1020; |