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parallelize section garbage collection

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currently we tag pointers to solve ABA problem however if the list
has more than max_U16 items, the tag will overflow and cause serious issues.
To fix this, we need to use 64-bit tags together with 128-bit interlocked
compare-exchange intrinsic
This commit is contained in:
Nikita Smith
2025-09-17 15:21:37 -07:00
committed by Ryan Fleury
parent cc8fdc6c6f
commit 5a12513306
4 changed files with 299 additions and 128 deletions
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src/linker/lnk_obj.c
+2 -2
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@@ -268,7 +268,7 @@ THREAD_POOL_TASK_FUNC(lnk_obj_initer)
COFF_SectionHeader *sect_header = &coff_section_table[sect_idx];
String8 sect_name = str8_cstring_capped(sect_header->name, sect_header->name + sizeof(sect_header->name));
if (str8_starts_with(sect_name, str8_lit(".debug$"))) {
sect_header->flags |= LNK_SECTION_FLAG_DEBUG_INFO;
sect_header->flags |= LNK_SECTION_FLAG_DEBUG;
}
}
}
@@ -286,7 +286,7 @@ THREAD_POOL_TASK_FUNC(lnk_obj_initer)
CV_Symbol comp_symbol = {0};
for EachIndex(sect_idx, header.section_count_no_null) {
COFF_SectionHeader *sect_header = &coff_section_table[sect_idx];
if (sect_header->flags & LNK_SECTION_FLAG_DEBUG_INFO) {
if (sect_header->flags & LNK_SECTION_FLAG_DEBUG) {
String8 name = str8_cstring_capped(sect_header->name, sect_header->name+sizeof(sect_header->name));
if (str8_match(name, str8_lit(".debug$S"), 0)) {
Temp temp = temp_begin(scratch.arena);