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raddbg nil tables, autofill empty tables with 1-sized nils; use element-from-idx wrapper to bounds-check and nilify all out-of-bounds raddbg table accesses

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This commit is contained in:
Ryan Fleury
2024-01-31 08:43:33 -08:00
parent a6f42502ec
commit 385014adcb
13 changed files with 174 additions and 166 deletions
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src/ctrl/ctrl_core.c
+3 -4
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@@ -242,9 +242,8 @@ ctrl_append_resolved_module_user_bp_traps(Arena *arena, DEMON_Handle process, DE
}
// rjf: src_id * pt -> push
if(0 < src_id && src_id < rdbg->source_file_count)
{
RADDBG_SourceFile *src = rdbg->source_files + src_id;
RADDBG_SourceFile *src = raddbg_element_from_idx(rdbg, source_files, src_id);
RADDBG_ParsedLineMap line_map = {0};
raddbg_line_map_from_source_file(rdbg, src, &line_map);
U32 voff_count = 0;
@@ -1553,9 +1552,9 @@ ctrl_thread__next_demon_event(Arena *arena, CTRL_Msg *msg, DEMON_RunCtrls *run_c
{
U32 id_count = 0;
U32 *ids = raddbg_matches_from_map_node(rdbg, node, &id_count);
if(id_count > 0 && 0 < ids[0] && ids[0] < rdbg->global_variable_count)
if(id_count > 0)
{
RADDBG_GlobalVariable *global_var = &rdbg->global_variables[ids[0]];
RADDBG_GlobalVariable *global_var = raddbg_element_from_idx(rdbg, global_variables, ids[0]);
U64 global_var_voff = global_var->voff;
U64 global_var_vaddr = global_var->voff + demon_base_vaddr_from_module(ctrl_demon_handle_from_ctrl(module));
Architecture arch = demon_arch_from_object(ev->thread);