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debug stats for /OPT:REF

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This commit is contained in:
Nikita Smith
2026-06-02 12:10:39 -07:00
committed by Ryan Fleury
parent c5677cf5f4
commit 2e4069b89a
1 changed files with 26 additions and 9 deletions
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src/linker/lnk.c
+26 -9
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@@ -2676,9 +2676,9 @@ THREAD_POOL_TASK_FUNC(lnk_walk_relocs_and_mark_ref_sections_task)
if (task_id == 0) { if (task_id == 0) {
ProfBegin("Remove Unreachable Sections"); ProfBegin("Remove Unreachable Sections");
U64 discard_vsize = 0; typedef struct { U64 vsize; U64 fsize; U64 section_count; } Stat;
U64 discard_fsize = 0; enum { Stat_Null, Stat_Code, Stat_Data, Stat_Debug, Stat_Count };
U64 discard_count = 0; Stat stats[Stat_Count] = {0};
for EachNode(obj_n, LNK_ObjNode, objs.first) { for EachNode(obj_n, LNK_ObjNode, objs.first) {
LNK_Obj *obj = &obj_n->data; LNK_Obj *obj = &obj_n->data;
@@ -2690,18 +2690,35 @@ THREAD_POOL_TASK_FUNC(lnk_walk_relocs_and_mark_ref_sections_task)
COFF_SectionHeader *section_header = lnk_coff_section_header_from_section_number(obj, section_number); COFF_SectionHeader *section_header = lnk_coff_section_header_from_section_number(obj, section_number);
section_header->flags |= COFF_SectionFlag_LnkRemove; section_header->flags |= COFF_SectionFlag_LnkRemove;
U64 stat_kind = Stat_Null;
if (section_header->flags & LNK_SECTION_FLAG_DEBUG) { stat_kind = Stat_Debug; }
else if (section_header->flags & COFF_SectionFlag_CntCode) { stat_kind = Stat_Code; }
else { stat_kind = Stat_Data; }
if (section_header->flags & COFF_SectionFlag_CntUninitializedData) { if (section_header->flags & COFF_SectionFlag_CntUninitializedData) {
discard_vsize += section_header->vsize; stats[stat_kind].vsize += section_header->vsize;
} else { } else {
discard_fsize += section_header->fsize; stats[stat_kind].fsize += section_header->fsize;
} }
discard_count += 1; stats[stat_kind].section_count += 1;
} }
} }
lnk_log(LNK_Log_Debug, "/OPT:REF total virt size discard: %M", (unsigned long long)discard_vsize); if (lnk_get_log_status(LNK_Log_Debug)) {
lnk_log(LNK_Log_Debug, "/OPT:REF total file size discard: %M", (unsigned long long)discard_fsize); U64 total_vsize = 0, total_fsize = 0, total_section_count = 0;
lnk_log(LNK_Log_Debug, "/OPT:REF total section discard : %llu", (unsigned long long)discard_count); for EachElement(i, stats) {
total_vsize += stats[i].vsize;
total_fsize += stats[i].fsize;
total_section_count += stats[i].section_count;
}
String8List stat_list = {0};
str8_list_pushf(scratch.arena, &stat_list, "Code : vsize: %M, fsize: %M, section count %llu", stats[Stat_Code].vsize, stats[Stat_Code].fsize, (unsigned long long)stats[Stat_Code].section_count );
str8_list_pushf(scratch.arena, &stat_list, "Data : vsize: %M, fsize: %M, section count %llu", stats[Stat_Data].vsize, stats[Stat_Data].fsize, (unsigned long long)stats[Stat_Data].section_count );
str8_list_pushf(scratch.arena, &stat_list, "Debug: vsize: %M, fsize: %M, section count %llu", stats[Stat_Debug].vsize, stats[Stat_Debug].fsize, (unsigned long long)stats[Stat_Debug].section_count);
str8_list_pushf(scratch.arena, &stat_list, "Total: vsize: %M, fsize: %M, section count %llu", total_vsize, total_fsize, total_section_count);
String8 stat_str = str8_list_join(scratch.arena, &stat_list, &(StringJoin){.pre = str8_lit(" "), .sep = str8_lit("\n ")});
lnk_log(LNK_Log_Debug, "/OPT:REF Stats:\n%S", stat_str);
}
ProfEnd(); ProfEnd();
} }