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d2r2: do not duplicate line records, were being generated by columnar changes, but these are not currently supported by the debugger

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This commit is contained in:
Ryan Fleury
2026-05-09 12:18:05 -07:00
parent 2f6d0f9aaa
commit d59d6a21f0
6 changed files with 64 additions and 39 deletions
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src/base/base_entry_point.c
+1
View File
@@ -12,6 +12,7 @@ global B32 global_async_exit = 0;
thread_static B32 is_async_thread = 0;
// NOTE(rjf): defined by target
raddbg_entry_point(entry_point);
internal void entry_point(CmdLine *cmdline);
internal void
src/dbg_engine/dbg_engine_user.c
+10 -10
View File
@@ -363,7 +363,7 @@ d_trap_net_from_thread__step_over_line(Arena *arena, D_Entity *thread)
// rjf: gather other ranges on this same textual line, which we don't want to return to
Rng1U64List all_vaddr_ranges_on_same_line = {0};
{
D_LineList lines = d_lines_from_dbgi_key_file_path_line_num(scratch.arena, dbgi_key, file_path, line_num);
D_LineList lines = d_lines_from_dbgi_key_file_path_line_num(scratch.arena, dbgi_key, file_path, line_num, max_U64);
for EachNode(n, D_LineNode, lines.first)
{
Rng1U64 voff_range = n->v.voff_range;
@@ -574,7 +574,7 @@ d_trap_net_from_thread__step_into_line(Arena *arena, D_Entity *thread)
// rjf: gather other ranges on this same textual line, which we don't want to return to
Rng1U64List all_vaddr_ranges_on_same_line = {0};
{
D_LineList lines = d_lines_from_dbgi_key_file_path_line_num(scratch.arena, dbgi_key, file_path, line_num);
D_LineList lines = d_lines_from_dbgi_key_file_path_line_num(scratch.arena, dbgi_key, file_path, line_num, max_U64);
for EachNode(n, D_LineNode, lines.first)
{
Rng1U64 voff_range = n->v.voff_range;
@@ -838,7 +838,7 @@ d_lines_from_dbgi_key_voff(Arena *arena, DI_Key dbgi_key, U64 voff)
// TODO(rjf): this depends on file path maps, needs to move
internal D_LineListArray
d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key, String8 file_path, Rng1S64 line_num_range)
d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key, String8 file_path, Rng1S64 line_num_range, U64 max_voffs_per_line)
{
D_LineListArray array = {0};
{
@@ -896,7 +896,7 @@ d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key,
D_LineList *list = &array.v[line_idx];
U32 voff_count = 0;
U64 *voffs = rdi_line_voffs_from_num(&line_map, u32_from_u64_saturate((U64)line_num), &voff_count);
if(lines_num_voffs[line_idx] < 8) ProfScope("iterate voffs (%i)", voff_count) for(U64 idx = 0; idx < voff_count; idx += 1)
if(lines_num_voffs[line_idx] < max_voffs_per_line) ProfScope("iterate voffs (%i)", voff_count) for(U64 idx = 0; idx < voff_count; idx += 1)
{
U64 base_voff = voffs[idx];
U64 unit_idx = rdi_vmap_idx_from_section_kind_voff(rdi, RDI_SectionKind_UnitVMap, base_voff);
@@ -917,7 +917,7 @@ d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key,
SLLQueuePush(list->first, list->last, n);
list->count += 1;
lines_num_voffs[line_idx] += 1;
if(lines_num_voffs[line_idx] >= 8)
if(lines_num_voffs[line_idx] >= max_voffs_per_line)
{
break;
}
@@ -932,7 +932,7 @@ d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key,
}
internal D_LineListArray
d_lines_array_from_file_path_line_range(Arena *arena, String8 file_path, Rng1S64 line_num_range)
d_lines_array_from_file_path_line_range(Arena *arena, String8 file_path, Rng1S64 line_num_range, U64 max_voffs_per_line)
{
D_LineListArray array = {0};
{
@@ -1037,9 +1037,9 @@ d_lines_array_from_file_path_line_range(Arena *arena, String8 file_path, Rng1S64
}
internal D_LineList
d_lines_from_dbgi_key_file_path_line_num(Arena *arena, DI_Key dbgi_key, String8 file_path, S64 line_num)
d_lines_from_dbgi_key_file_path_line_num(Arena *arena, DI_Key dbgi_key, String8 file_path, S64 line_num, U64 max_voffs_per_line)
{
D_LineListArray array = d_lines_array_from_dbgi_key_file_path_line_range(arena, dbgi_key, file_path, r1s64(line_num, line_num+1));
D_LineListArray array = d_lines_array_from_dbgi_key_file_path_line_range(arena, dbgi_key, file_path, r1s64(line_num, line_num+1), max_voffs_per_line);
D_LineList list = {0};
if(array.count != 0)
{
@@ -1049,9 +1049,9 @@ d_lines_from_dbgi_key_file_path_line_num(Arena *arena, DI_Key dbgi_key, String8
}
internal D_LineList
d_lines_from_file_path_line_num(Arena *arena, String8 file_path, S64 line_num)
d_lines_from_file_path_line_num(Arena *arena, String8 file_path, S64 line_num, U64 max_voffs_per_line)
{
D_LineListArray array = d_lines_array_from_file_path_line_range(arena, file_path, r1s64(line_num, line_num+1));
D_LineListArray array = d_lines_array_from_file_path_line_range(arena, file_path, r1s64(line_num, line_num+1), max_voffs_per_line);
D_LineList list = {0};
if(array.count != 0)
{
src/dbg_engine/dbg_engine_user.h
+4 -4
View File
@@ -432,10 +432,10 @@ internal D_LineList d_lines_from_dbgi_key_voff(Arena *arena, DI_Key dbgi_key, U6
//- rjf: file:line -> line info
// TODO(rjf): this depends on file path maps, needs to move
// TODO(rjf): need to clean this up & dedup
internal D_LineListArray d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key, String8 file_path, Rng1S64 line_num_range);
internal D_LineListArray d_lines_array_from_file_path_line_range(Arena *arena, String8 file_path, Rng1S64 line_num_range);
internal D_LineList d_lines_from_dbgi_key_file_path_line_num(Arena *arena, DI_Key dbgi_key, String8 file_path, S64 line_num);
internal D_LineList d_lines_from_file_path_line_num(Arena *arena, String8 file_path, S64 line_num);
internal D_LineListArray d_lines_array_from_dbgi_key_file_path_line_range(Arena *arena, DI_Key dbgi_key, String8 file_path, Rng1S64 line_num_range, U64 max_voffs_per_line);
internal D_LineListArray d_lines_array_from_file_path_line_range(Arena *arena, String8 file_path, Rng1S64 line_num_range, U64 max_voffs_per_line);
internal D_LineList d_lines_from_dbgi_key_file_path_line_num(Arena *arena, DI_Key dbgi_key, String8 file_path, S64 line_num, U64 max_voffs_per_line);
internal D_LineList d_lines_from_file_path_line_num(Arena *arena, String8 file_path, S64 line_num, U64 max_voffs_per_line);
////////////////////////////////
//~ rjf: Process/Thread/Module Info Lookups
src/raddbg/raddbg_core.c
+1 -1
View File
@@ -14287,7 +14287,7 @@ rd_frame(void)
// try to map the src coordinates to a vaddr via line info
if(vaddr == 0 && file_path.size != 0)
{
D_LineList lines = d_lines_from_file_path_line_num(scratch.arena, file_path, point.line);
D_LineList lines = d_lines_from_file_path_line_num(scratch.arena, file_path, point.line, max_U64);
for(D_LineNode *n = lines.first; n != 0; n = n->next)
{
D_EntityList modules = d_modules_from_dbgi_key(scratch.arena, &d_user_state->ctrl_entity_store->ctx, n->v.dbgi_key);
src/raddbg/raddbg_views.c
+2 -2
View File
@@ -342,7 +342,7 @@ rd_code_view_build(Arena *arena, RD_CodeViewState *cv, RD_CodeViewBuildFlags fla
String8 file_path = rd_regs()->file_path;
D_Entity *module = d_entity_from_handle(&d_user_state->ctrl_entity_store->ctx, rd_regs()->module);
DI_Key dbgi_key = d_dbgi_key_from_module(module);
D_LineListArray lines_array = d_lines_array_from_dbgi_key_file_path_line_range(scratch.arena, dbgi_key, file_path, visible_line_num_range);
D_LineListArray lines_array = d_lines_array_from_dbgi_key_file_path_line_range(scratch.arena, dbgi_key, file_path, visible_line_num_range, 8);
if(lines_array.count != 0)
{
MemoryCopy(code_slice_params.line_infos, lines_array.v, sizeof(D_LineList)*lines_array.count);
@@ -2226,7 +2226,7 @@ RD_VIEW_UI_FUNCTION_DEF(text)
{
D_Entity *module = d_entity_from_handle(&d_user_state->ctrl_entity_store->ctx, rd_regs()->module);
DI_Key dbgi_key = d_dbgi_key_from_module(module);
rd_regs()->lines = d_lines_from_dbgi_key_file_path_line_num(rd_frame_arena(), dbgi_key, rd_regs()->file_path, rd_regs()->cursor.line);
rd_regs()->lines = d_lines_from_dbgi_key_file_path_line_num(rd_frame_arena(), dbgi_key, rd_regs()->file_path, rd_regs()->cursor.line, 8);
}
//////////////////////////////
src/rdi_from_dwarf/rdi_from_dwarf_2.c
+46 -22
View File
@@ -725,7 +725,7 @@ d2r2_convert(Arena *arena, D2R2_ConvertParams *params)
{
DW2_LineTableFile *f = &hdr->files.v[file_idx];
DW2_LineTableFile *dir = &hdr->dirs.v[f->dir_idx];
String8 full_file_path = str8f(scratch2.arena, "%S/%S", dir->file_name, f->file_name);
String8 full_file_path = str8f(scratch2.arena, "%S%s%S", dir->file_name, dir->file_name.size != 0 ? "/" : "", f->file_name);
U64 hash = u64_hash_from_str8(full_file_path);
U64 slot_idx = hash%slots_count;
SrcFileNode *node = 0;
@@ -1112,8 +1112,27 @@ d2r2_convert(Arena *arena, D2R2_ConvertParams *params)
if(emit_line && vm_regs.address != 0 && vm_regs.line != 0)
{
emit_line = 0;
// rjf: grab the last emitted line info
U32 last_line = 0;
U16 last_col = 0;
if(last_line_seq_chunk != 0 && last_line_seq_chunk->line_count > 0)
{
last_line = last_line_seq_chunk->line_nums[last_line_seq_chunk->line_count-1];
last_col = last_line_seq_chunk->col_nums[last_line_seq_chunk->line_count-1];
}
// rjf: determine if we need a new line
//
// TODO(rjf): in some cases this can trigger w/ DWARF due to columnar changes;
// we need to adjust this when we want to start correctly supporting columnar
// line info / stepping
//
B32 need_new_line = (last_line != (U32)vm_regs.line);
// rjf: need new line -> grab chunk
LineSeqChunk *chunk = last_line_seq_chunk;
if(chunk == 0 || chunk->line_count >= chunk->line_cap)
if(need_new_line && (chunk == 0 || chunk->line_count >= chunk->line_cap))
{
chunk = push_array(scratch.arena, LineSeqChunk, 1);
SLLQueuePush(first_line_seq_chunk, last_line_seq_chunk, chunk);
@@ -1122,28 +1141,33 @@ d2r2_convert(Arena *arena, D2R2_ConvertParams *params)
chunk->line_nums = push_array(scratch.arena, U32, chunk->line_cap);
chunk->col_nums = push_array(scratch.arena, U16, 2*chunk->line_cap);
}
U64 chunk_line_idx = chunk->line_count;
chunk->voffs[chunk_line_idx] = vm_regs.address - base_vaddr;
chunk->line_nums[chunk_line_idx] = (U32)vm_regs.line;
chunk->col_nums[chunk_line_idx] = (U16)vm_regs.column;
chunk->line_count += 1;
total_line_seq_count += 1;
line_seq_src_file = src_file;
// NOTE(rjf): use for comparing against llvm-dwarfdump --debug-line
// rjf: need new line -> push
if(need_new_line)
{
U64 chunk_line_idx = chunk->line_count;
chunk->voffs[chunk_line_idx] = vm_regs.address - base_vaddr;
chunk->line_nums[chunk_line_idx] = (U32)vm_regs.line;
chunk->col_nums[chunk_line_idx] = (U16)vm_regs.column;
chunk->line_count += 1;
total_line_seq_count += 1;
line_seq_src_file = src_file;
// NOTE(rjf): use for comparing against llvm-dwarfdump --debug-line
#if 0
printf("0x%016I64x %6i %6i %6i %3i %13I64x %7i %s%s%s%s\n",
vm_regs.address,
(int)vm_regs.line,
(int)vm_regs.column,
(int)vm_regs.file_index,
(int)vm_regs.isa,
vm_regs.discriminator,
(int)vm_regs.vliw_op_index,
vm_regs.is_stmt ? " is_stmt" : "",
vm_regs.prologue_end ? " prologue_end" : "",
vm_regs.epilogue_begin ? " epilogue_begin" : "",
vm_regs.end_sequence ? " end_sequence" : "");
printf("0x%016I64x %6i %6i %6i %3i %13I64x %7i %s%s%s%s\n",
vm_regs.address,
(int)vm_regs.line,
(int)vm_regs.column,
(int)vm_regs.file_index,
(int)vm_regs.isa,
vm_regs.discriminator,
(int)vm_regs.vliw_op_index,
vm_regs.is_stmt ? " is_stmt" : "",
vm_regs.prologue_end ? " prologue_end" : "",
vm_regs.epilogue_begin ? " epilogue_begin" : "",
vm_regs.end_sequence ? " end_sequence" : "");
#endif
}
vm_regs.discriminator = 0;
vm_regs.basic_block = 0;
vm_regs.prologue_end = 0;