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pull raddbg byte attachment aside into standalone section - this guarantees byte placement, does not rely on ordering, and does not require symbols

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This commit is contained in:
Ryan Fleury
2025-07-31 13:15:37 -07:00
parent 9ef87e9d56
commit ad735dab5e
2 changed files with 12 additions and 5 deletions
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src/ctrl/ctrl_core.c
+9 -3
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@@ -4026,6 +4026,7 @@ ctrl_thread__module_open(CTRL_Handle process, CTRL_Handle module, Rng1U64 vaddr_
String8 rdi_dbg_path = str8_zero();
String8 raddbg_data = str8_zero();
Rng1U64 raddbg_section_voff_range = r1u64(0, 0);
Rng1U64 raddbg_is_attached_section_voff_range = r1u64(0, 0);
ProfScope("unpack relevant PE info")
{
B32 is_valid = 1;
@@ -4224,6 +4225,11 @@ ctrl_thread__module_open(CTRL_Handle process, CTRL_Handle module, Rng1U64 vaddr_
raddbg_section_voff_range.min = sec[idx].voff;
raddbg_section_voff_range.max = sec[idx].voff + sec[idx].vsize;
}
else if(str8_match(section_name, str8_lit(".rdbgia"), 0))
{
raddbg_is_attached_section_voff_range.min = sec[idx].voff;
raddbg_is_attached_section_voff_range.max = sec[idx].voff + sec[idx].vsize;
}
}
raddbg_data.size = dim_1u64(raddbg_section_voff_range);
raddbg_data.str = push_array(arena, U8, raddbg_data.size);
@@ -4232,11 +4238,11 @@ ctrl_thread__module_open(CTRL_Handle process, CTRL_Handle module, Rng1U64 vaddr_
scratch_end(scratch);
}
// rjf: if we have a raddbg section, mark the first byte as 1, to signify attachment
if(raddbg_section_voff_range.max != raddbg_section_voff_range.min)
// rjf: if we have a "raddbg is attached" section, mark the first byte as 1, to signify attachment
if(raddbg_is_attached_section_voff_range.max != raddbg_is_attached_section_voff_range.min)
{
U8 new_value = 1;
dmn_process_write_struct(process.dmn_handle, vaddr_range.min + raddbg_section_voff_range.min, &new_value);
dmn_process_write_struct(process.dmn_handle, vaddr_range.min + raddbg_is_attached_section_voff_range.min, &new_value);
}
}
}